mirror of
https://git.hardenedbsd.org/hardenedbsd/HardenedBSD.git
synced 2024-12-30 15:38:06 +01:00
a4cd5630b0
non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
8269 lines
223 KiB
C
8269 lines
223 KiB
C
/* Implement classes and message passing for Objective C.
|
||
Copyright (C) 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
|
||
Contributed by Steve Naroff.
|
||
|
||
This file is part of GNU CC.
|
||
|
||
GNU CC is free software; you can redistribute it and/or modify
|
||
it under the terms of the GNU General Public License as published by
|
||
the Free Software Foundation; either version 2, or (at your option)
|
||
any later version.
|
||
|
||
GNU CC is distributed in the hope that it will be useful,
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||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
GNU General Public License for more details.
|
||
|
||
You should have received a copy of the GNU General Public License
|
||
along with GNU CC; see the file COPYING. If not, write to
|
||
the Free Software Foundation, 59 Temple Place - Suite 330,
|
||
Boston, MA 02111-1307, USA. */
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||
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||
/* Purpose: This module implements the Objective-C 4.0 language.
|
||
|
||
compatibility issues (with the Stepstone translator):
|
||
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- does not recognize the following 3.3 constructs.
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||
@requires, @classes, @messages, = (...)
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||
- methods with variable arguments must conform to ANSI standard.
|
||
- tagged structure definitions that appear in BOTH the interface
|
||
and implementation are not allowed.
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||
- public/private: all instance variables are public within the
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||
context of the implementation...I consider this to be a bug in
|
||
the translator.
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||
- statically allocated objects are not supported. the user will
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||
receive an error if this service is requested.
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||
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||
code generation `options':
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||
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- OBJC_INT_SELECTORS */
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#include <stdio.h>
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#include "config.h"
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||
#include "tree.h"
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||
#include "c-tree.h"
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#include "c-lex.h"
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||
#include "flags.h"
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#include "objc-act.h"
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#include "input.h"
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||
#include "function.h"
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||
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/* This is the default way of generating a method name. */
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/* I am not sure it is really correct.
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||
Perhaps there's a danger that it will make name conflicts
|
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if method names contain underscores. -- rms. */
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#ifndef OBJC_GEN_METHOD_LABEL
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#define OBJC_GEN_METHOD_LABEL(BUF, IS_INST, CLASS_NAME, CAT_NAME, SEL_NAME, NUM) \
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do { \
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||
char *temp; \
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sprintf ((BUF), "_%s_%s_%s_%s", \
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((IS_INST) ? "i" : "c"), \
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(CLASS_NAME), \
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((CAT_NAME)? (CAT_NAME) : ""), \
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(SEL_NAME)); \
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for (temp = (BUF); *temp; temp++) \
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if (*temp == ':') *temp = '_'; \
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} while (0)
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#endif
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||
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/* These need specifying. */
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||
#ifndef OBJC_FORWARDING_STACK_OFFSET
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#define OBJC_FORWARDING_STACK_OFFSET 0
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#endif
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||
|
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#ifndef OBJC_FORWARDING_MIN_OFFSET
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#define OBJC_FORWARDING_MIN_OFFSET 0
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#endif
|
||
|
||
/* Define the special tree codes that we use. */
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||
|
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/* Table indexed by tree code giving a string containing a character
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classifying the tree code. Possibilities are
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t, d, s, c, r, <, 1 and 2. See objc-tree.def for details. */
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||
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#define DEFTREECODE(SYM, NAME, TYPE, LENGTH) TYPE,
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||
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char *objc_tree_code_type[] = {
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"x",
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#include "objc-tree.def"
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};
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#undef DEFTREECODE
|
||
|
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/* Table indexed by tree code giving number of expression
|
||
operands beyond the fixed part of the node structure.
|
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Not used for types or decls. */
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||
|
||
#define DEFTREECODE(SYM, NAME, TYPE, LENGTH) LENGTH,
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||
|
||
int objc_tree_code_length[] = {
|
||
0,
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||
#include "objc-tree.def"
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||
};
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||
#undef DEFTREECODE
|
||
|
||
/* Names of tree components.
|
||
Used for printing out the tree and error messages. */
|
||
#define DEFTREECODE(SYM, NAME, TYPE, LEN) NAME,
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||
|
||
char *objc_tree_code_name[] = {
|
||
"@@dummy",
|
||
#include "objc-tree.def"
|
||
};
|
||
#undef DEFTREECODE
|
||
|
||
/* Set up for use of obstacks. */
|
||
|
||
#include "obstack.h"
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||
|
||
#define obstack_chunk_alloc xmalloc
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#define obstack_chunk_free free
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||
|
||
/* This obstack is used to accumulate the encoding of a data type. */
|
||
static struct obstack util_obstack;
|
||
/* This points to the beginning of obstack contents,
|
||
so we can free the whole contents. */
|
||
char *util_firstobj;
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||
|
||
/* List of classes with list of their static instances. */
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||
static tree objc_static_instances;
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||
|
||
/* The declaration of the array administrating the static instances. */
|
||
static tree static_instances_decl;
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||
|
||
/* for encode_method_def */
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||
#include "rtl.h"
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||
#include "c-parse.h"
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||
|
||
#define OBJC_VERSION (flag_next_runtime ? 5 : 7)
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#define PROTOCOL_VERSION 2
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|
||
#define OBJC_ENCODE_INLINE_DEFS 0
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||
#define OBJC_ENCODE_DONT_INLINE_DEFS 1
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||
|
||
/*** Private Interface (procedures) ***/
|
||
|
||
/* Used by compile_file. */
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||
|
||
static void init_objc PROTO((void));
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||
static void finish_objc PROTO((void));
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||
|
||
/* Code generation. */
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||
|
||
static void synth_module_prologue PROTO((void));
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||
static tree build_constructor PROTO((tree, tree));
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||
static char *build_module_descriptor PROTO((void));
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||
static tree init_module_descriptor PROTO((tree));
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||
static tree build_objc_method_call PROTO((int, tree, tree,
|
||
tree, tree, tree));
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||
static void generate_strings PROTO((void));
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||
static tree get_proto_encoding PROTO((tree));
|
||
static void build_selector_translation_table PROTO((void));
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||
static tree build_ivar_chain PROTO((tree, int));
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||
|
||
static tree objc_add_static_instance PROTO((tree, tree));
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||
|
||
static tree build_ivar_template PROTO((void));
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||
static tree build_method_template PROTO((void));
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||
static tree build_private_template PROTO((tree));
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||
static void build_class_template PROTO((void));
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||
static void build_selector_template PROTO((void));
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||
static void build_category_template PROTO((void));
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||
static tree build_super_template PROTO((void));
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||
static tree build_category_initializer PROTO((tree, tree, tree,
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||
tree, tree, tree));
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||
static tree build_protocol_initializer PROTO((tree, tree, tree,
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||
tree, tree));
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||
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||
static void synth_forward_declarations PROTO((void));
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||
static void generate_ivar_lists PROTO((void));
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||
static void generate_dispatch_tables PROTO((void));
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||
static void generate_shared_structures PROTO((void));
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static tree generate_protocol_list PROTO((tree));
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||
static void generate_forward_declaration_to_string_table PROTO((void));
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||
static void build_protocol_reference PROTO((tree));
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||
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||
static tree init_selector PROTO((int));
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static tree build_keyword_selector PROTO((tree));
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||
static tree synth_id_with_class_suffix PROTO((char *, tree));
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||
|
||
/* From expr.c */
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extern int apply_args_register_offset PROTO((int));
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||
|
||
/* Misc. bookkeeping */
|
||
|
||
typedef struct hashed_entry *hash;
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||
typedef struct hashed_attribute *attr;
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||
|
||
struct hashed_attribute
|
||
{
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||
attr next;
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||
tree value;
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||
};
|
||
struct hashed_entry
|
||
{
|
||
attr list;
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||
hash next;
|
||
tree key;
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||
};
|
||
|
||
static void hash_init PROTO((void));
|
||
static void hash_enter PROTO((hash *, tree));
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||
static hash hash_lookup PROTO((hash *, tree));
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||
static void hash_add_attr PROTO((hash, tree));
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||
static tree lookup_method PROTO((tree, tree));
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||
static tree lookup_instance_method_static PROTO((tree, tree));
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||
static tree lookup_class_method_static PROTO((tree, tree));
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||
static tree add_class PROTO((tree));
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||
static void add_category PROTO((tree, tree));
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||
|
||
enum string_section
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||
{
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||
class_names, /* class, category, protocol, module names */
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||
meth_var_names, /* method and variable names */
|
||
meth_var_types /* method and variable type descriptors */
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||
};
|
||
|
||
static tree add_objc_string PROTO((tree,
|
||
enum string_section));
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||
static tree build_objc_string_decl PROTO((tree,
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||
enum string_section));
|
||
static tree build_selector_reference_decl PROTO((tree));
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||
|
||
/* Protocol additions. */
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||
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||
static tree add_protocol PROTO((tree));
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static tree lookup_protocol PROTO((tree));
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static tree lookup_and_install_protocols PROTO((tree));
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||
|
||
/* Type encoding. */
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||
|
||
static void encode_type_qualifiers PROTO((tree));
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||
static void encode_pointer PROTO((tree, int, int));
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||
static void encode_array PROTO((tree, int, int));
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||
static void encode_aggregate PROTO((tree, int, int));
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||
static void encode_bitfield PROTO((int, int));
|
||
static void encode_type PROTO((tree, int, int));
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||
static void encode_field_decl PROTO((tree, int, int));
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||
|
||
static void really_start_method PROTO((tree, tree));
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||
static int comp_method_with_proto PROTO((tree, tree));
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||
static int comp_proto_with_proto PROTO((tree, tree));
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||
static tree get_arg_type_list PROTO((tree, int, int));
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||
static tree expr_last PROTO((tree));
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||
|
||
/* Utilities for debugging and error diagnostics. */
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||
|
||
static void warn_with_method PROTO((char *, int, tree));
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||
static void error_with_ivar PROTO((char *, tree, tree));
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||
static char *gen_method_decl PROTO((tree, char *));
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||
static char *gen_declaration PROTO((tree, char *));
|
||
static char *gen_declarator PROTO((tree, char *, char *));
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||
static int is_complex_decl PROTO((tree));
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||
static void adorn_decl PROTO((tree, char *));
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||
static void dump_interface PROTO((FILE *, tree));
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||
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||
/* Everything else. */
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||
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||
static void objc_fatal PROTO((void));
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||
static tree define_decl PROTO((tree, tree));
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static tree lookup_method_in_protocol_list PROTO((tree, tree, int));
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||
static tree lookup_protocol_in_reflist PROTO((tree, tree));
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||
static tree create_builtin_decl PROTO((enum tree_code,
|
||
tree, char *));
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||
static tree my_build_string PROTO((int, char *));
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||
static void build_objc_symtab_template PROTO((void));
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||
static tree init_def_list PROTO((tree));
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||
static tree init_objc_symtab PROTO((tree));
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||
static void forward_declare_categories PROTO((void));
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||
static void generate_objc_symtab_decl PROTO((void));
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||
static tree build_selector PROTO((tree));
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static tree build_msg_pool_reference PROTO((int));
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||
static tree build_typed_selector_reference PROTO((tree, tree));
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||
static tree build_selector_reference PROTO((tree));
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static tree build_class_reference_decl PROTO((tree));
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||
static void add_class_reference PROTO((tree));
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||
static tree objc_copy_list PROTO((tree, tree *));
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||
static tree build_protocol_template PROTO((void));
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||
static tree build_descriptor_table_initializer PROTO((tree, tree));
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||
static tree build_method_prototype_list_template PROTO((tree, int));
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||
static tree build_method_prototype_template PROTO((void));
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||
static int forwarding_offset PROTO((tree));
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||
static tree encode_method_prototype PROTO((tree, tree));
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||
static tree generate_descriptor_table PROTO((tree, char *, int, tree, tree));
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||
static void generate_method_descriptors PROTO((tree));
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||
static tree build_tmp_function_decl PROTO((void));
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||
static void hack_method_prototype PROTO((tree, tree));
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||
static void generate_protocol_references PROTO((tree));
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||
static void generate_protocols PROTO((void));
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||
static void check_ivars PROTO((tree, tree));
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||
static tree build_ivar_list_template PROTO((tree, int));
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||
static tree build_method_list_template PROTO((tree, int));
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||
static tree build_ivar_list_initializer PROTO((tree, tree));
|
||
static tree generate_ivars_list PROTO((tree, char *,
|
||
int, tree));
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||
static tree build_dispatch_table_initializer PROTO((tree, tree));
|
||
static tree generate_dispatch_table PROTO((tree, char *,
|
||
int, tree));
|
||
static tree build_shared_structure_initializer PROTO((tree, tree, tree, tree,
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||
tree, int, tree, tree,
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||
tree));
|
||
static void generate_category PROTO((tree));
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||
static int is_objc_type_qualifier PROTO((tree));
|
||
static tree adjust_type_for_id_default PROTO((tree));
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||
static tree check_duplicates PROTO((hash));
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||
static tree receiver_is_class_object PROTO((tree));
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||
static int check_methods PROTO((tree, tree, int));
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||
static int conforms_to_protocol PROTO((tree, tree));
|
||
static void check_protocols PROTO((tree, char *, char *));
|
||
static tree encode_method_def PROTO((tree));
|
||
static void gen_declspecs PROTO((tree, char *, int));
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||
static void generate_classref_translation_entry PROTO((tree));
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||
static void handle_class_ref PROTO((tree));
|
||
|
||
/*** Private Interface (data) ***/
|
||
|
||
/* Reserved tag definitions. */
|
||
|
||
#define TYPE_ID "id"
|
||
#define TAG_OBJECT "objc_object"
|
||
#define TAG_CLASS "objc_class"
|
||
#define TAG_SUPER "objc_super"
|
||
#define TAG_SELECTOR "objc_selector"
|
||
|
||
#define UTAG_CLASS "_objc_class"
|
||
#define UTAG_IVAR "_objc_ivar"
|
||
#define UTAG_IVAR_LIST "_objc_ivar_list"
|
||
#define UTAG_METHOD "_objc_method"
|
||
#define UTAG_METHOD_LIST "_objc_method_list"
|
||
#define UTAG_CATEGORY "_objc_category"
|
||
#define UTAG_MODULE "_objc_module"
|
||
#define UTAG_STATICS "_objc_statics"
|
||
#define UTAG_SYMTAB "_objc_symtab"
|
||
#define UTAG_SUPER "_objc_super"
|
||
#define UTAG_SELECTOR "_objc_selector"
|
||
|
||
#define UTAG_PROTOCOL "_objc_protocol"
|
||
#define UTAG_PROTOCOL_LIST "_objc_protocol_list"
|
||
#define UTAG_METHOD_PROTOTYPE "_objc_method_prototype"
|
||
#define UTAG_METHOD_PROTOTYPE_LIST "_objc__method_prototype_list"
|
||
|
||
#define STRING_OBJECT_CLASS_NAME "NXConstantString"
|
||
#define PROTOCOL_OBJECT_CLASS_NAME "Protocol"
|
||
|
||
static char *TAG_GETCLASS;
|
||
static char *TAG_GETMETACLASS;
|
||
static char *TAG_MSGSEND;
|
||
static char *TAG_MSGSENDSUPER;
|
||
static char *TAG_EXECCLASS;
|
||
|
||
/* Set by `continue_class' and checked by `is_public'. */
|
||
|
||
#define TREE_STATIC_TEMPLATE(record_type) (TREE_PUBLIC (record_type))
|
||
#define TYPED_OBJECT(type) \
|
||
(TREE_CODE (type) == RECORD_TYPE && TREE_STATIC_TEMPLATE (type))
|
||
|
||
/* Some commonly used instances of "identifier_node". */
|
||
|
||
static tree self_id, ucmd_id;
|
||
static tree unused_list;
|
||
|
||
static tree self_decl, umsg_decl, umsg_super_decl;
|
||
static tree objc_get_class_decl, objc_get_meta_class_decl;
|
||
|
||
static tree super_type, selector_type, id_type, objc_class_type;
|
||
static tree instance_type, protocol_type;
|
||
|
||
/* Type checking macros. */
|
||
|
||
#define IS_ID(TYPE) \
|
||
(TYPE_MAIN_VARIANT (TYPE) == TYPE_MAIN_VARIANT (id_type))
|
||
#define IS_PROTOCOL_QUALIFIED_ID(TYPE) \
|
||
(IS_ID (TYPE) && TYPE_PROTOCOL_LIST (TYPE))
|
||
#define IS_SUPER(TYPE) \
|
||
(super_type && TYPE_MAIN_VARIANT (TYPE) == TYPE_MAIN_VARIANT (super_type))
|
||
|
||
static tree class_chain = NULL_TREE;
|
||
static tree alias_chain = NULL_TREE;
|
||
static tree interface_chain = NULL_TREE;
|
||
static tree protocol_chain = NULL_TREE;
|
||
|
||
/* Chains to manage selectors that are referenced and defined in the module. */
|
||
|
||
static tree cls_ref_chain = NULL_TREE; /* Classes referenced. */
|
||
static tree sel_ref_chain = NULL_TREE; /* Selectors referenced. */
|
||
|
||
/* Chains to manage uniquing of strings. */
|
||
|
||
static tree class_names_chain = NULL_TREE;
|
||
static tree meth_var_names_chain = NULL_TREE;
|
||
static tree meth_var_types_chain = NULL_TREE;
|
||
|
||
/* Hash tables to manage the global pool of method prototypes. */
|
||
|
||
static hash *nst_method_hash_list = 0;
|
||
static hash *cls_method_hash_list = 0;
|
||
|
||
/* Backend data declarations. */
|
||
|
||
static tree UOBJC_SYMBOLS_decl;
|
||
static tree UOBJC_INSTANCE_VARIABLES_decl, UOBJC_CLASS_VARIABLES_decl;
|
||
static tree UOBJC_INSTANCE_METHODS_decl, UOBJC_CLASS_METHODS_decl;
|
||
static tree UOBJC_CLASS_decl, UOBJC_METACLASS_decl;
|
||
static tree UOBJC_SELECTOR_TABLE_decl;
|
||
static tree UOBJC_MODULES_decl;
|
||
static tree UOBJC_STRINGS_decl;
|
||
|
||
/* The following are used when compiling a class implementation.
|
||
implementation_template will normally be an interface, however if
|
||
none exists this will be equal to implementation_context...it is
|
||
set in start_class. */
|
||
|
||
static tree implementation_context = NULL_TREE;
|
||
static tree implementation_template = NULL_TREE;
|
||
|
||
struct imp_entry
|
||
{
|
||
struct imp_entry *next;
|
||
tree imp_context;
|
||
tree imp_template;
|
||
tree class_decl; /* _OBJC_CLASS_<my_name>; */
|
||
tree meta_decl; /* _OBJC_METACLASS_<my_name>; */
|
||
};
|
||
|
||
static void handle_impent PROTO((struct imp_entry *));
|
||
|
||
static struct imp_entry *imp_list = 0;
|
||
static int imp_count = 0; /* `@implementation' */
|
||
static int cat_count = 0; /* `@category' */
|
||
|
||
static tree objc_class_template, objc_category_template, uprivate_record;
|
||
static tree objc_protocol_template, objc_selector_template;
|
||
static tree ucls_super_ref, uucls_super_ref;
|
||
|
||
static tree objc_method_template, objc_ivar_template;
|
||
static tree objc_symtab_template, objc_module_template;
|
||
static tree objc_super_template, objc_object_reference;
|
||
|
||
static tree objc_object_id, objc_class_id, objc_id_id;
|
||
static tree constant_string_id;
|
||
static tree constant_string_type;
|
||
static tree UOBJC_SUPER_decl;
|
||
|
||
static tree method_context = NULL_TREE;
|
||
static int method_slot = 0; /* Used by start_method_def, */
|
||
|
||
#define BUFSIZE 1024
|
||
|
||
static char *errbuf; /* Buffer for error diagnostics */
|
||
|
||
/* Data imported from tree.c. */
|
||
|
||
extern enum debug_info_type write_symbols;
|
||
|
||
/* Data imported from toplev.c. */
|
||
|
||
extern char *dump_base_name;
|
||
|
||
/* Generate code for GNU or NeXT runtime environment. */
|
||
|
||
#ifdef NEXT_OBJC_RUNTIME
|
||
int flag_next_runtime = 1;
|
||
#else
|
||
int flag_next_runtime = 0;
|
||
#endif
|
||
|
||
int flag_typed_selectors;
|
||
|
||
/* Open and close the file for outputting class declarations, if requested. */
|
||
|
||
int flag_gen_declaration = 0;
|
||
|
||
FILE *gen_declaration_file;
|
||
|
||
/* Warn if multiple methods are seen for the same selector, but with
|
||
different argument types. */
|
||
|
||
int warn_selector = 0;
|
||
|
||
/* Warn if methods required by a protocol are not implemented in the
|
||
class adopting it. When turned off, methods inherited to that
|
||
class are also considered implemented */
|
||
|
||
int flag_warn_protocol = 1;
|
||
|
||
/* Tells "encode_pointer/encode_aggregate" whether we are generating
|
||
type descriptors for instance variables (as opposed to methods).
|
||
Type descriptors for instance variables contain more information
|
||
than methods (for static typing and embedded structures). This
|
||
was added to support features being planned for dbkit2. */
|
||
|
||
static int generating_instance_variables = 0;
|
||
|
||
void
|
||
lang_init ()
|
||
{
|
||
/* The beginning of the file is a new line; check for #.
|
||
With luck, we discover the real source file's name from that
|
||
and put it in input_filename. */
|
||
ungetc (check_newline (), finput);
|
||
|
||
/* The line number can be -1 if we had -g3 and the input file
|
||
had a directive specifying line 0. But we want predefined
|
||
functions to have a line number of 0, not -1. */
|
||
if (lineno == -1)
|
||
lineno = 0;
|
||
|
||
/* If gen_declaration desired, open the output file. */
|
||
if (flag_gen_declaration)
|
||
{
|
||
int dump_base_name_length = strlen (dump_base_name);
|
||
register char *dumpname = (char *) xmalloc (dump_base_name_length + 7);
|
||
strcpy (dumpname, dump_base_name);
|
||
strcat (dumpname, ".decl");
|
||
gen_declaration_file = fopen (dumpname, "w");
|
||
if (gen_declaration_file == 0)
|
||
pfatal_with_name (dumpname);
|
||
}
|
||
|
||
if (flag_next_runtime)
|
||
{
|
||
TAG_GETCLASS = "objc_getClass";
|
||
TAG_GETMETACLASS = "objc_getMetaClass";
|
||
TAG_MSGSEND = "objc_msgSend";
|
||
TAG_MSGSENDSUPER = "objc_msgSendSuper";
|
||
TAG_EXECCLASS = "__objc_execClass";
|
||
}
|
||
else
|
||
{
|
||
TAG_GETCLASS = "objc_get_class";
|
||
TAG_GETMETACLASS = "objc_get_meta_class";
|
||
TAG_MSGSEND = "objc_msg_lookup";
|
||
TAG_MSGSENDSUPER = "objc_msg_lookup_super";
|
||
TAG_EXECCLASS = "__objc_exec_class";
|
||
flag_typed_selectors = 1;
|
||
}
|
||
|
||
if (doing_objc_thang)
|
||
init_objc ();
|
||
}
|
||
|
||
static void
|
||
objc_fatal ()
|
||
{
|
||
fatal ("Objective-C text in C source file");
|
||
}
|
||
|
||
void
|
||
finish_file ()
|
||
{
|
||
if (doing_objc_thang)
|
||
finish_objc (); /* Objective-C finalization */
|
||
|
||
if (gen_declaration_file)
|
||
fclose (gen_declaration_file);
|
||
}
|
||
|
||
void
|
||
lang_finish ()
|
||
{
|
||
}
|
||
|
||
char *
|
||
lang_identify ()
|
||
{
|
||
return "objc";
|
||
}
|
||
|
||
int
|
||
lang_decode_option (p)
|
||
char *p;
|
||
{
|
||
if (!strcmp (p, "-lang-objc"))
|
||
doing_objc_thang = 1;
|
||
else if (!strcmp (p, "-gen-decls"))
|
||
flag_gen_declaration = 1;
|
||
else if (!strcmp (p, "-Wselector"))
|
||
warn_selector = 1;
|
||
else if (!strcmp (p, "-Wno-selector"))
|
||
warn_selector = 0;
|
||
else if (!strcmp (p, "-Wprotocol"))
|
||
flag_warn_protocol = 1;
|
||
else if (!strcmp (p, "-Wno-protocol"))
|
||
flag_warn_protocol = 0;
|
||
else if (!strcmp (p, "-fgnu-runtime"))
|
||
flag_next_runtime = 0;
|
||
else if (!strcmp (p, "-fno-next-runtime"))
|
||
flag_next_runtime = 0;
|
||
else if (!strcmp (p, "-fno-gnu-runtime"))
|
||
flag_next_runtime = 1;
|
||
else if (!strcmp (p, "-fnext-runtime"))
|
||
flag_next_runtime = 1;
|
||
else
|
||
return c_decode_option (p);
|
||
|
||
return 1;
|
||
}
|
||
|
||
static tree
|
||
define_decl (declarator, declspecs)
|
||
tree declarator;
|
||
tree declspecs;
|
||
{
|
||
tree decl = start_decl (declarator, declspecs, 0, NULL_TREE, NULL_TREE);
|
||
finish_decl (decl, NULL_TREE, NULL_TREE);
|
||
return decl;
|
||
}
|
||
|
||
/* Return 1 if LHS and RHS are compatible types for assignment or
|
||
various other operations. Return 0 if they are incompatible, and
|
||
return -1 if we choose to not decide. When the operation is
|
||
REFLEXIVE, check for compatibility in either direction.
|
||
|
||
For statically typed objects, an assignment of the form `a' = `b'
|
||
is permitted if:
|
||
|
||
`a' is of type "id",
|
||
`a' and `b' are the same class type, or
|
||
`a' and `b' are of class types A and B such that B is a descendant of A. */
|
||
|
||
int
|
||
maybe_objc_comptypes (lhs, rhs, reflexive)
|
||
tree lhs, rhs;
|
||
int reflexive;
|
||
{
|
||
if (doing_objc_thang)
|
||
return objc_comptypes (lhs, rhs, reflexive);
|
||
return -1;
|
||
}
|
||
|
||
static tree
|
||
lookup_method_in_protocol_list (rproto_list, sel_name, class_meth)
|
||
tree rproto_list;
|
||
tree sel_name;
|
||
int class_meth;
|
||
{
|
||
tree rproto, p;
|
||
tree fnd = 0;
|
||
|
||
for (rproto = rproto_list; rproto; rproto = TREE_CHAIN (rproto))
|
||
{
|
||
p = TREE_VALUE (rproto);
|
||
|
||
if (TREE_CODE (p) == PROTOCOL_INTERFACE_TYPE)
|
||
{
|
||
if ((fnd = lookup_method (class_meth
|
||
? PROTOCOL_CLS_METHODS (p)
|
||
: PROTOCOL_NST_METHODS (p), sel_name)))
|
||
;
|
||
else if (PROTOCOL_LIST (p))
|
||
fnd = lookup_method_in_protocol_list (PROTOCOL_LIST (p),
|
||
sel_name, class_meth);
|
||
}
|
||
else
|
||
; /* An identifier...if we could not find a protocol. */
|
||
|
||
if (fnd)
|
||
return fnd;
|
||
}
|
||
|
||
return 0;
|
||
}
|
||
|
||
static tree
|
||
lookup_protocol_in_reflist (rproto_list, lproto)
|
||
tree rproto_list;
|
||
tree lproto;
|
||
{
|
||
tree rproto, p;
|
||
|
||
/* Make sure the protocol is support by the object on the rhs. */
|
||
if (TREE_CODE (lproto) == PROTOCOL_INTERFACE_TYPE)
|
||
{
|
||
tree fnd = 0;
|
||
for (rproto = rproto_list; rproto; rproto = TREE_CHAIN (rproto))
|
||
{
|
||
p = TREE_VALUE (rproto);
|
||
|
||
if (TREE_CODE (p) == PROTOCOL_INTERFACE_TYPE)
|
||
{
|
||
if (lproto == p)
|
||
fnd = lproto;
|
||
|
||
else if (PROTOCOL_LIST (p))
|
||
fnd = lookup_protocol_in_reflist (PROTOCOL_LIST (p), lproto);
|
||
}
|
||
|
||
if (fnd)
|
||
return fnd;
|
||
}
|
||
}
|
||
else
|
||
; /* An identifier...if we could not find a protocol. */
|
||
|
||
return 0;
|
||
}
|
||
|
||
/* Return 1 if LHS and RHS are compatible types for assignment
|
||
or various other operations. Return 0 if they are incompatible,
|
||
and return -1 if we choose to not decide. When the operation
|
||
is REFLEXIVE, check for compatibility in either direction. */
|
||
|
||
int
|
||
objc_comptypes (lhs, rhs, reflexive)
|
||
tree lhs;
|
||
tree rhs;
|
||
int reflexive;
|
||
{
|
||
/* New clause for protocols. */
|
||
|
||
if (TREE_CODE (lhs) == POINTER_TYPE
|
||
&& TREE_CODE (TREE_TYPE (lhs)) == RECORD_TYPE
|
||
&& TREE_CODE (rhs) == POINTER_TYPE
|
||
&& TREE_CODE (TREE_TYPE (rhs)) == RECORD_TYPE)
|
||
{
|
||
int lhs_is_proto = IS_PROTOCOL_QUALIFIED_ID (lhs);
|
||
int rhs_is_proto = IS_PROTOCOL_QUALIFIED_ID (rhs);
|
||
|
||
if (lhs_is_proto)
|
||
{
|
||
tree lproto, lproto_list = TYPE_PROTOCOL_LIST (lhs);
|
||
tree rproto, rproto_list;
|
||
tree p;
|
||
|
||
if (rhs_is_proto)
|
||
{
|
||
rproto_list = TYPE_PROTOCOL_LIST (rhs);
|
||
|
||
/* Make sure the protocol is supported by the object
|
||
on the rhs. */
|
||
for (lproto = lproto_list; lproto; lproto = TREE_CHAIN (lproto))
|
||
{
|
||
p = TREE_VALUE (lproto);
|
||
rproto = lookup_protocol_in_reflist (rproto_list, p);
|
||
|
||
if (!rproto)
|
||
warning ("object does not conform to the `%s' protocol",
|
||
IDENTIFIER_POINTER (PROTOCOL_NAME (p)));
|
||
}
|
||
}
|
||
else if (TYPED_OBJECT (TREE_TYPE (rhs)))
|
||
{
|
||
tree rname = TYPE_NAME (TREE_TYPE (rhs));
|
||
tree rinter;
|
||
|
||
/* Make sure the protocol is supported by the object
|
||
on the rhs. */
|
||
for (lproto = lproto_list; lproto; lproto = TREE_CHAIN (lproto))
|
||
{
|
||
p = TREE_VALUE (lproto);
|
||
rproto = 0;
|
||
rinter = lookup_interface (rname);
|
||
|
||
while (rinter && !rproto)
|
||
{
|
||
tree cat;
|
||
|
||
rproto_list = CLASS_PROTOCOL_LIST (rinter);
|
||
rproto = lookup_protocol_in_reflist (rproto_list, p);
|
||
|
||
/* Check for protocols adopted by categories. */
|
||
cat = CLASS_CATEGORY_LIST (rinter);
|
||
while (cat && !rproto)
|
||
{
|
||
rproto_list = CLASS_PROTOCOL_LIST (cat);
|
||
rproto = lookup_protocol_in_reflist (rproto_list, p);
|
||
|
||
cat = CLASS_CATEGORY_LIST (cat);
|
||
}
|
||
|
||
rinter = lookup_interface (CLASS_SUPER_NAME (rinter));
|
||
}
|
||
|
||
if (!rproto)
|
||
warning ("class `%s' does not implement the `%s' protocol",
|
||
IDENTIFIER_POINTER (TYPE_NAME (TREE_TYPE (rhs))),
|
||
IDENTIFIER_POINTER (PROTOCOL_NAME (p)));
|
||
}
|
||
}
|
||
|
||
/* May change...based on whether there was any mismatch */
|
||
return 1;
|
||
}
|
||
else if (rhs_is_proto)
|
||
/* Lhs is not a protocol...warn if it is statically typed */
|
||
return (TYPED_OBJECT (TREE_TYPE (lhs)) != 0);
|
||
|
||
else
|
||
/* Defer to comptypes .*/
|
||
return -1;
|
||
}
|
||
|
||
else if (TREE_CODE (lhs) == RECORD_TYPE && TREE_CODE (rhs) == RECORD_TYPE)
|
||
; /* Fall thru. This is the case we have been handling all along */
|
||
else
|
||
/* Defer to comptypes. */
|
||
return -1;
|
||
|
||
/* `id' = `<class> *', `<class> *' = `id' */
|
||
|
||
if ((TYPE_NAME (lhs) == objc_object_id && TYPED_OBJECT (rhs))
|
||
|| (TYPE_NAME (rhs) == objc_object_id && TYPED_OBJECT (lhs)))
|
||
return 1;
|
||
|
||
/* `id' = `Class', `Class' = `id' */
|
||
|
||
else if ((TYPE_NAME (lhs) == objc_object_id
|
||
&& TYPE_NAME (rhs) == objc_class_id)
|
||
|| (TYPE_NAME (lhs) == objc_class_id
|
||
&& TYPE_NAME (rhs) == objc_object_id))
|
||
return 1;
|
||
|
||
/* `<class> *' = `<class> *' */
|
||
|
||
else if (TYPED_OBJECT (lhs) && TYPED_OBJECT (rhs))
|
||
{
|
||
tree lname = TYPE_NAME (lhs);
|
||
tree rname = TYPE_NAME (rhs);
|
||
tree inter;
|
||
|
||
if (lname == rname)
|
||
return 1;
|
||
|
||
/* If the left hand side is a super class of the right hand side,
|
||
allow it. */
|
||
for (inter = lookup_interface (rname); inter;
|
||
inter = lookup_interface (CLASS_SUPER_NAME (inter)))
|
||
if (lname == CLASS_SUPER_NAME (inter))
|
||
return 1;
|
||
|
||
/* Allow the reverse when reflexive. */
|
||
if (reflexive)
|
||
for (inter = lookup_interface (lname); inter;
|
||
inter = lookup_interface (CLASS_SUPER_NAME (inter)))
|
||
if (rname == CLASS_SUPER_NAME (inter))
|
||
return 1;
|
||
|
||
return 0;
|
||
}
|
||
else
|
||
/* Defer to comptypes. */
|
||
return -1;
|
||
}
|
||
|
||
/* Called from c-decl.c before all calls to rest_of_decl_compilation. */
|
||
|
||
void
|
||
objc_check_decl (decl)
|
||
tree decl;
|
||
{
|
||
tree type = TREE_TYPE (decl);
|
||
|
||
if (TREE_CODE (type) == RECORD_TYPE
|
||
&& TREE_STATIC_TEMPLATE (type)
|
||
&& type != constant_string_type)
|
||
{
|
||
error_with_decl (decl, "`%s' cannot be statically allocated");
|
||
fatal ("statically allocated objects not supported");
|
||
}
|
||
}
|
||
|
||
void
|
||
maybe_objc_check_decl (decl)
|
||
tree decl;
|
||
{
|
||
if (doing_objc_thang)
|
||
objc_check_decl (decl);
|
||
}
|
||
|
||
/* Implement static typing. At this point, we know we have an interface. */
|
||
|
||
tree
|
||
get_static_reference (interface, protocols)
|
||
tree interface;
|
||
tree protocols;
|
||
{
|
||
tree type = xref_tag (RECORD_TYPE, interface);
|
||
|
||
if (protocols)
|
||
{
|
||
tree t, m = TYPE_MAIN_VARIANT (type);
|
||
|
||
push_obstacks_nochange ();
|
||
end_temporary_allocation ();
|
||
t = copy_node (type);
|
||
TYPE_BINFO (t) = make_tree_vec (2);
|
||
pop_obstacks ();
|
||
|
||
/* Add this type to the chain of variants of TYPE. */
|
||
TYPE_NEXT_VARIANT (t) = TYPE_NEXT_VARIANT (m);
|
||
TYPE_NEXT_VARIANT (m) = t;
|
||
|
||
/* Look up protocols and install in lang specific list. */
|
||
TYPE_PROTOCOL_LIST (t) = lookup_and_install_protocols (protocols);
|
||
|
||
/* This forces a new pointer type to be created later
|
||
(in build_pointer_type)...so that the new template
|
||
we just created will actually be used...what a hack! */
|
||
if (TYPE_POINTER_TO (t))
|
||
TYPE_POINTER_TO (t) = 0;
|
||
|
||
type = t;
|
||
}
|
||
|
||
return type;
|
||
}
|
||
|
||
tree
|
||
get_object_reference (protocols)
|
||
tree protocols;
|
||
{
|
||
tree type_decl = lookup_name (objc_id_id);
|
||
tree type;
|
||
|
||
if (type_decl && TREE_CODE (type_decl) == TYPE_DECL)
|
||
{
|
||
type = TREE_TYPE (type_decl);
|
||
if (TYPE_MAIN_VARIANT (type) != id_type)
|
||
warning ("Unexpected type for `id' (%s)",
|
||
gen_declaration (type, errbuf));
|
||
}
|
||
else
|
||
fatal ("Undefined type `id', please import <objc/objc.h>");
|
||
|
||
/* This clause creates a new pointer type that is qualified with
|
||
the protocol specification...this info is used later to do more
|
||
elaborate type checking. */
|
||
|
||
if (protocols)
|
||
{
|
||
tree t, m = TYPE_MAIN_VARIANT (type);
|
||
|
||
push_obstacks_nochange ();
|
||
end_temporary_allocation ();
|
||
t = copy_node (type);
|
||
TYPE_BINFO (t) = make_tree_vec (2);
|
||
pop_obstacks ();
|
||
|
||
/* Add this type to the chain of variants of TYPE. */
|
||
TYPE_NEXT_VARIANT (t) = TYPE_NEXT_VARIANT (m);
|
||
TYPE_NEXT_VARIANT (m) = t;
|
||
|
||
/* Look up protocols...and install in lang specific list */
|
||
TYPE_PROTOCOL_LIST (t) = lookup_and_install_protocols (protocols);
|
||
|
||
/* This forces a new pointer type to be created later
|
||
(in build_pointer_type)...so that the new template
|
||
we just created will actually be used...what a hack! */
|
||
if (TYPE_POINTER_TO (t))
|
||
TYPE_POINTER_TO (t) = NULL;
|
||
|
||
type = t;
|
||
}
|
||
return type;
|
||
}
|
||
|
||
static tree
|
||
lookup_and_install_protocols (protocols)
|
||
tree protocols;
|
||
{
|
||
tree proto;
|
||
tree prev = NULL;
|
||
tree return_value = protocols;
|
||
|
||
for (proto = protocols; proto; proto = TREE_CHAIN (proto))
|
||
{
|
||
tree ident = TREE_VALUE (proto);
|
||
tree p = lookup_protocol (ident);
|
||
|
||
if (!p)
|
||
{
|
||
error ("Cannot find protocol declaration for `%s'",
|
||
IDENTIFIER_POINTER (ident));
|
||
if (prev)
|
||
TREE_CHAIN (prev) = TREE_CHAIN (proto);
|
||
else
|
||
return_value = TREE_CHAIN (proto);
|
||
}
|
||
else
|
||
{
|
||
/* Replace identifier with actual protocol node. */
|
||
TREE_VALUE (proto) = p;
|
||
prev = proto;
|
||
}
|
||
}
|
||
|
||
return return_value;
|
||
}
|
||
|
||
/* Create and push a decl for a built-in external variable or field NAME.
|
||
CODE says which.
|
||
TYPE is its data type. */
|
||
|
||
static tree
|
||
create_builtin_decl (code, type, name)
|
||
enum tree_code code;
|
||
tree type;
|
||
char *name;
|
||
{
|
||
tree decl = build_decl (code, get_identifier (name), type);
|
||
|
||
if (code == VAR_DECL)
|
||
{
|
||
TREE_STATIC (decl) = 1;
|
||
make_decl_rtl (decl, 0, 1);
|
||
pushdecl (decl);
|
||
}
|
||
|
||
DECL_ARTIFICIAL (decl) = 1;
|
||
return decl;
|
||
}
|
||
|
||
/* Purpose: "play" parser, creating/installing representations
|
||
of the declarations that are required by Objective-C.
|
||
|
||
Model:
|
||
|
||
type_spec--------->sc_spec
|
||
(tree_list) (tree_list)
|
||
| |
|
||
| |
|
||
identifier_node identifier_node */
|
||
|
||
static void
|
||
synth_module_prologue ()
|
||
{
|
||
tree temp_type;
|
||
tree super_p;
|
||
|
||
/* Defined in `objc.h' */
|
||
objc_object_id = get_identifier (TAG_OBJECT);
|
||
|
||
objc_object_reference = xref_tag (RECORD_TYPE, objc_object_id);
|
||
|
||
id_type = build_pointer_type (objc_object_reference);
|
||
|
||
objc_id_id = get_identifier (TYPE_ID);
|
||
objc_class_id = get_identifier (TAG_CLASS);
|
||
|
||
objc_class_type = build_pointer_type (xref_tag (RECORD_TYPE, objc_class_id));
|
||
protocol_type = build_pointer_type (xref_tag (RECORD_TYPE,
|
||
get_identifier (PROTOCOL_OBJECT_CLASS_NAME)));
|
||
|
||
/* Declare type of selector-objects that represent an operation name. */
|
||
|
||
#ifdef OBJC_INT_SELECTORS
|
||
/* `unsigned int' */
|
||
selector_type = unsigned_type_node;
|
||
#else
|
||
/* `struct objc_selector *' */
|
||
selector_type
|
||
= build_pointer_type (xref_tag (RECORD_TYPE,
|
||
get_identifier (TAG_SELECTOR)));
|
||
#endif /* not OBJC_INT_SELECTORS */
|
||
|
||
/* Forward declare type, or else the prototype for msgSendSuper will
|
||
complain. */
|
||
|
||
super_p = build_pointer_type (xref_tag (RECORD_TYPE,
|
||
get_identifier (TAG_SUPER)));
|
||
|
||
|
||
/* id objc_msgSend (id, SEL, ...); */
|
||
|
||
temp_type
|
||
= build_function_type (id_type,
|
||
tree_cons (NULL_TREE, id_type,
|
||
tree_cons (NULL_TREE, selector_type,
|
||
NULL_TREE)));
|
||
|
||
if (! flag_next_runtime)
|
||
{
|
||
umsg_decl = build_decl (FUNCTION_DECL,
|
||
get_identifier (TAG_MSGSEND), temp_type);
|
||
DECL_EXTERNAL (umsg_decl) = 1;
|
||
TREE_PUBLIC (umsg_decl) = 1;
|
||
DECL_INLINE (umsg_decl) = 1;
|
||
DECL_ARTIFICIAL (umsg_decl) = 1;
|
||
|
||
if (flag_traditional && TAG_MSGSEND[0] != '_')
|
||
DECL_BUILT_IN_NONANSI (umsg_decl) = 1;
|
||
|
||
make_decl_rtl (umsg_decl, NULL_PTR, 1);
|
||
pushdecl (umsg_decl);
|
||
}
|
||
else
|
||
umsg_decl = builtin_function (TAG_MSGSEND, temp_type, NOT_BUILT_IN, 0);
|
||
|
||
/* id objc_msgSendSuper (struct objc_super *, SEL, ...); */
|
||
|
||
temp_type
|
||
= build_function_type (id_type,
|
||
tree_cons (NULL_TREE, super_p,
|
||
tree_cons (NULL_TREE, selector_type,
|
||
NULL_TREE)));
|
||
|
||
umsg_super_decl = builtin_function (TAG_MSGSENDSUPER,
|
||
temp_type, NOT_BUILT_IN, 0);
|
||
|
||
/* id objc_getClass (const char *); */
|
||
|
||
temp_type = build_function_type (id_type,
|
||
tree_cons (NULL_TREE,
|
||
const_string_type_node,
|
||
tree_cons (NULL_TREE, void_type_node,
|
||
NULL_TREE)));
|
||
|
||
objc_get_class_decl
|
||
= builtin_function (TAG_GETCLASS, temp_type, NOT_BUILT_IN, 0);
|
||
|
||
/* id objc_getMetaClass (const char *); */
|
||
|
||
objc_get_meta_class_decl
|
||
= builtin_function (TAG_GETMETACLASS, temp_type, NOT_BUILT_IN, 0);
|
||
|
||
/* static SEL _OBJC_SELECTOR_TABLE[]; */
|
||
|
||
if (! flag_next_runtime)
|
||
{
|
||
if (flag_typed_selectors)
|
||
{
|
||
/* Suppress outputting debug symbols, because
|
||
dbxout_init hasn'r been called yet. */
|
||
enum debug_info_type save_write_symbols = write_symbols;
|
||
write_symbols = NO_DEBUG;
|
||
|
||
build_selector_template ();
|
||
temp_type = build_array_type (objc_selector_template, NULL_TREE);
|
||
|
||
write_symbols = save_write_symbols;
|
||
}
|
||
else
|
||
temp_type = build_array_type (selector_type, NULL_TREE);
|
||
|
||
layout_type (temp_type);
|
||
UOBJC_SELECTOR_TABLE_decl
|
||
= create_builtin_decl (VAR_DECL, temp_type,
|
||
"_OBJC_SELECTOR_TABLE");
|
||
|
||
/* Avoid warning when not sending messages. */
|
||
TREE_USED (UOBJC_SELECTOR_TABLE_decl) = 1;
|
||
}
|
||
|
||
generate_forward_declaration_to_string_table ();
|
||
|
||
/* Forward declare constant_string_id and constant_string_type. */
|
||
constant_string_id = get_identifier (STRING_OBJECT_CLASS_NAME);
|
||
constant_string_type = xref_tag (RECORD_TYPE, constant_string_id);
|
||
}
|
||
|
||
/* Custom build_string which sets TREE_TYPE! */
|
||
|
||
static tree
|
||
my_build_string (len, str)
|
||
int len;
|
||
char *str;
|
||
{
|
||
int wide_flag = 0;
|
||
tree a_string = build_string (len, str);
|
||
|
||
/* Some code from combine_strings, which is local to c-parse.y. */
|
||
if (TREE_TYPE (a_string) == int_array_type_node)
|
||
wide_flag = 1;
|
||
|
||
TREE_TYPE (a_string)
|
||
= build_array_type (wide_flag ? integer_type_node : char_type_node,
|
||
build_index_type (build_int_2 (len - 1, 0)));
|
||
|
||
TREE_CONSTANT (a_string) = 1; /* Puts string in the readonly segment */
|
||
TREE_STATIC (a_string) = 1;
|
||
|
||
return a_string;
|
||
}
|
||
|
||
/* Return a newly constructed OBJC_STRING_CST node whose value is
|
||
the LEN characters at STR.
|
||
The TREE_TYPE is not initialized. */
|
||
|
||
tree
|
||
build_objc_string (len, str)
|
||
int len;
|
||
char *str;
|
||
{
|
||
tree s = build_string (len, str);
|
||
|
||
TREE_SET_CODE (s, OBJC_STRING_CST);
|
||
return s;
|
||
}
|
||
|
||
/* Given a chain of OBJC_STRING_CST's, build a static instance of
|
||
NXConstanString which points at the concatenation of those strings.
|
||
We place the string object in the __string_objects section of the
|
||
__OBJC segment. The Objective-C runtime will initialize the isa
|
||
pointers of the string objects to point at the NXConstandString class
|
||
object. */
|
||
|
||
tree
|
||
build_objc_string_object (strings)
|
||
tree strings;
|
||
{
|
||
tree string, initlist, constructor;
|
||
int length;
|
||
|
||
if (!doing_objc_thang)
|
||
objc_fatal ();
|
||
|
||
if (lookup_interface (constant_string_id) == NULL_TREE)
|
||
{
|
||
error ("Cannot find interface declaration for `%s'",
|
||
IDENTIFIER_POINTER (constant_string_id));
|
||
return error_mark_node;
|
||
}
|
||
|
||
add_class_reference (constant_string_id);
|
||
|
||
/* Combine_strings will work for OBJC_STRING_CST's too. */
|
||
string = combine_strings (strings);
|
||
TREE_SET_CODE (string, STRING_CST);
|
||
length = TREE_STRING_LENGTH (string) - 1;
|
||
|
||
if (! flag_next_runtime)
|
||
{
|
||
push_obstacks_nochange ();
|
||
end_temporary_allocation ();
|
||
if (! TREE_PERMANENT (strings))
|
||
string = my_build_string (length + 1,
|
||
TREE_STRING_POINTER (string));
|
||
}
|
||
|
||
/* & ((NXConstantString) {0, string, length}) */
|
||
|
||
initlist = build_tree_list (NULL_TREE, build_int_2 (0, 0));
|
||
initlist
|
||
= tree_cons (NULL_TREE, copy_node (build_unary_op (ADDR_EXPR, string, 1)),
|
||
initlist);
|
||
initlist = tree_cons (NULL_TREE, build_int_2 (length, 0), initlist);
|
||
constructor = build_constructor (constant_string_type, nreverse (initlist));
|
||
|
||
if (!flag_next_runtime)
|
||
{
|
||
constructor
|
||
= objc_add_static_instance (constructor, constant_string_type);
|
||
pop_obstacks ();
|
||
}
|
||
|
||
return (build_unary_op (ADDR_EXPR, constructor, 1));
|
||
}
|
||
|
||
/* Declare a static instance of CLASS_DECL initialized by CONSTRUCTOR. */
|
||
|
||
static tree
|
||
objc_add_static_instance (constructor, class_decl)
|
||
tree constructor, class_decl;
|
||
{
|
||
static int num_static_inst;
|
||
tree *chain, decl, decl_spec, decl_expr;
|
||
char buf[256];
|
||
|
||
push_obstacks_nochange ();
|
||
end_temporary_allocation ();
|
||
|
||
/* Find the list of static instances for the CLASS_DECL. Create one if
|
||
not found. */
|
||
for (chain = &objc_static_instances;
|
||
*chain && TREE_VALUE (*chain) != class_decl;
|
||
chain = &TREE_CHAIN (*chain));
|
||
if (!*chain)
|
||
{
|
||
*chain = tree_cons (NULL_TREE, class_decl, NULL_TREE);
|
||
add_objc_string (TYPE_NAME (class_decl), class_names);
|
||
}
|
||
|
||
sprintf (buf, "_OBJC_INSTANCE_%d", num_static_inst++);
|
||
decl = build_decl (VAR_DECL, get_identifier (buf), class_decl);
|
||
DECL_COMMON (decl) = 1;
|
||
TREE_STATIC (decl) = 1;
|
||
DECL_ARTIFICIAL (decl) = 1;
|
||
pushdecl_top_level (decl);
|
||
rest_of_decl_compilation (decl, 0, 1, 0);
|
||
|
||
/* Do this here so it gets output later instead of possibly
|
||
inside something else we are writing. */
|
||
DECL_INITIAL (decl) = constructor;
|
||
|
||
/* Add the DECL to the head of this CLASS' list. */
|
||
TREE_PURPOSE (*chain) = tree_cons (NULL_TREE, decl, TREE_PURPOSE (*chain));
|
||
|
||
pop_obstacks ();
|
||
return decl;
|
||
}
|
||
|
||
/* Build a static constant CONSTRUCTOR
|
||
with type TYPE and elements ELTS. */
|
||
|
||
static tree
|
||
build_constructor (type, elts)
|
||
tree type, elts;
|
||
{
|
||
tree constructor = build (CONSTRUCTOR, type, NULL_TREE, elts);
|
||
|
||
TREE_CONSTANT (constructor) = 1;
|
||
TREE_STATIC (constructor) = 1;
|
||
TREE_READONLY (constructor) = 1;
|
||
|
||
return constructor;
|
||
}
|
||
|
||
/* Take care of defining and initializing _OBJC_SYMBOLS. */
|
||
|
||
/* Predefine the following data type:
|
||
|
||
struct _objc_symtab
|
||
{
|
||
long sel_ref_cnt;
|
||
SEL *refs;
|
||
short cls_def_cnt;
|
||
short cat_def_cnt;
|
||
void *defs[cls_def_cnt + cat_def_cnt];
|
||
}; */
|
||
|
||
static void
|
||
build_objc_symtab_template ()
|
||
{
|
||
tree field_decl, field_decl_chain, index;
|
||
|
||
objc_symtab_template
|
||
= start_struct (RECORD_TYPE, get_identifier (UTAG_SYMTAB));
|
||
|
||
/* long sel_ref_cnt; */
|
||
|
||
field_decl = create_builtin_decl (FIELD_DECL,
|
||
long_integer_type_node,
|
||
"sel_ref_cnt");
|
||
field_decl_chain = field_decl;
|
||
|
||
/* SEL *refs; */
|
||
|
||
field_decl = create_builtin_decl (FIELD_DECL,
|
||
build_pointer_type (selector_type),
|
||
"refs");
|
||
chainon (field_decl_chain, field_decl);
|
||
|
||
/* short cls_def_cnt; */
|
||
|
||
field_decl = create_builtin_decl (FIELD_DECL,
|
||
short_integer_type_node,
|
||
"cls_def_cnt");
|
||
chainon (field_decl_chain, field_decl);
|
||
|
||
/* short cat_def_cnt; */
|
||
|
||
field_decl = create_builtin_decl (FIELD_DECL,
|
||
short_integer_type_node,
|
||
"cat_def_cnt");
|
||
chainon (field_decl_chain, field_decl);
|
||
|
||
/* void *defs[cls_def_cnt + cat_def_cnt]; */
|
||
|
||
index = build_index_type (build_int_2 (imp_count + cat_count - 1,
|
||
imp_count == 0 && cat_count == 0
|
||
? -1 : 0));
|
||
field_decl = create_builtin_decl (FIELD_DECL,
|
||
build_array_type (ptr_type_node, index),
|
||
"defs");
|
||
chainon (field_decl_chain, field_decl);
|
||
|
||
finish_struct (objc_symtab_template, field_decl_chain, NULL_TREE);
|
||
}
|
||
|
||
/* Create the initial value for the `defs' field of _objc_symtab.
|
||
This is a CONSTRUCTOR. */
|
||
|
||
static tree
|
||
init_def_list (type)
|
||
tree type;
|
||
{
|
||
tree expr, initlist = NULL_TREE;
|
||
struct imp_entry *impent;
|
||
|
||
if (imp_count)
|
||
for (impent = imp_list; impent; impent = impent->next)
|
||
{
|
||
if (TREE_CODE (impent->imp_context) == CLASS_IMPLEMENTATION_TYPE)
|
||
{
|
||
expr = build_unary_op (ADDR_EXPR, impent->class_decl, 0);
|
||
initlist = tree_cons (NULL_TREE, expr, initlist);
|
||
}
|
||
}
|
||
|
||
if (cat_count)
|
||
for (impent = imp_list; impent; impent = impent->next)
|
||
{
|
||
if (TREE_CODE (impent->imp_context) == CATEGORY_IMPLEMENTATION_TYPE)
|
||
{
|
||
expr = build_unary_op (ADDR_EXPR, impent->class_decl, 0);
|
||
initlist = tree_cons (NULL_TREE, expr, initlist);
|
||
}
|
||
}
|
||
|
||
return build_constructor (type, nreverse (initlist));
|
||
}
|
||
|
||
/* Construct the initial value for all of _objc_symtab. */
|
||
|
||
static tree
|
||
init_objc_symtab (type)
|
||
tree type;
|
||
{
|
||
tree initlist;
|
||
|
||
/* sel_ref_cnt = { ..., 5, ... } */
|
||
|
||
initlist = build_tree_list (NULL_TREE, build_int_2 (0, 0));
|
||
|
||
/* refs = { ..., _OBJC_SELECTOR_TABLE, ... } */
|
||
|
||
if (flag_next_runtime || ! sel_ref_chain)
|
||
initlist = tree_cons (NULL_TREE, build_int_2 (0, 0), initlist);
|
||
else
|
||
initlist = tree_cons (NULL_TREE,
|
||
build_unary_op (ADDR_EXPR,
|
||
UOBJC_SELECTOR_TABLE_decl, 1),
|
||
initlist);
|
||
|
||
/* cls_def_cnt = { ..., 5, ... } */
|
||
|
||
initlist = tree_cons (NULL_TREE, build_int_2 (imp_count, 0), initlist);
|
||
|
||
/* cat_def_cnt = { ..., 5, ... } */
|
||
|
||
initlist = tree_cons (NULL_TREE, build_int_2 (cat_count, 0), initlist);
|
||
|
||
/* cls_def = { ..., { &Foo, &Bar, ...}, ... } */
|
||
|
||
if (imp_count || cat_count)
|
||
{
|
||
tree field = TYPE_FIELDS (type);
|
||
field = TREE_CHAIN (TREE_CHAIN (TREE_CHAIN (TREE_CHAIN (field))));
|
||
|
||
initlist = tree_cons (NULL_TREE, init_def_list (TREE_TYPE (field)),
|
||
initlist);
|
||
}
|
||
|
||
return build_constructor (type, nreverse (initlist));
|
||
}
|
||
|
||
/* Push forward-declarations of all the categories
|
||
so that init_def_list can use them in a CONSTRUCTOR. */
|
||
|
||
static void
|
||
forward_declare_categories ()
|
||
{
|
||
struct imp_entry *impent;
|
||
tree sav = implementation_context;
|
||
|
||
for (impent = imp_list; impent; impent = impent->next)
|
||
{
|
||
if (TREE_CODE (impent->imp_context) == CATEGORY_IMPLEMENTATION_TYPE)
|
||
{
|
||
/* Set an invisible arg to synth_id_with_class_suffix. */
|
||
implementation_context = impent->imp_context;
|
||
impent->class_decl
|
||
= create_builtin_decl (VAR_DECL, objc_category_template,
|
||
IDENTIFIER_POINTER (synth_id_with_class_suffix ("_OBJC_CATEGORY", implementation_context)));
|
||
}
|
||
}
|
||
implementation_context = sav;
|
||
}
|
||
|
||
/* Create the declaration of _OBJC_SYMBOLS, with type `strict _objc_symtab'
|
||
and initialized appropriately. */
|
||
|
||
static void
|
||
generate_objc_symtab_decl ()
|
||
{
|
||
tree sc_spec;
|
||
|
||
if (!objc_category_template)
|
||
build_category_template ();
|
||
|
||
/* forward declare categories */
|
||
if (cat_count)
|
||
forward_declare_categories ();
|
||
|
||
if (!objc_symtab_template)
|
||
build_objc_symtab_template ();
|
||
|
||
sc_spec = build_tree_list (NULL_TREE, ridpointers[(int) RID_STATIC]);
|
||
|
||
UOBJC_SYMBOLS_decl = start_decl (get_identifier ("_OBJC_SYMBOLS"),
|
||
tree_cons (NULL_TREE,
|
||
objc_symtab_template, sc_spec),
|
||
1,
|
||
NULL_TREE, NULL_TREE);
|
||
|
||
TREE_USED (UOBJC_SYMBOLS_decl) = 1;
|
||
DECL_IGNORED_P (UOBJC_SYMBOLS_decl) = 1;
|
||
DECL_ARTIFICIAL (UOBJC_SYMBOLS_decl) = 1;
|
||
finish_decl (UOBJC_SYMBOLS_decl,
|
||
init_objc_symtab (TREE_TYPE (UOBJC_SYMBOLS_decl)),
|
||
NULL_TREE);
|
||
}
|
||
|
||
static tree
|
||
init_module_descriptor (type)
|
||
tree type;
|
||
{
|
||
tree initlist, expr;
|
||
|
||
/* version = { 1, ... } */
|
||
|
||
expr = build_int_2 (OBJC_VERSION, 0);
|
||
initlist = build_tree_list (NULL_TREE, expr);
|
||
|
||
/* size = { ..., sizeof (struct objc_module), ... } */
|
||
|
||
expr = size_in_bytes (objc_module_template);
|
||
initlist = tree_cons (NULL_TREE, expr, initlist);
|
||
|
||
/* name = { ..., "foo.m", ... } */
|
||
|
||
expr = add_objc_string (get_identifier (input_filename), class_names);
|
||
initlist = tree_cons (NULL_TREE, expr, initlist);
|
||
|
||
|
||
if (!flag_next_runtime)
|
||
{
|
||
/* statics = { ..., _OBJC_STATIC_INSTANCES, ... } */
|
||
if (static_instances_decl)
|
||
expr = build_unary_op (ADDR_EXPR, static_instances_decl, 0);
|
||
else
|
||
expr = build_int_2 (0, 0);
|
||
initlist = tree_cons (NULL_TREE, expr, initlist);
|
||
}
|
||
|
||
/* symtab = { ..., _OBJC_SYMBOLS, ... } */
|
||
|
||
if (UOBJC_SYMBOLS_decl)
|
||
expr = build_unary_op (ADDR_EXPR, UOBJC_SYMBOLS_decl, 0);
|
||
else
|
||
expr = build_int_2 (0, 0);
|
||
initlist = tree_cons (NULL_TREE, expr, initlist);
|
||
|
||
return build_constructor (type, nreverse (initlist));
|
||
}
|
||
|
||
/* Write out the data structures to describe Objective C classes defined.
|
||
If appropriate, compile and output a setup function to initialize them.
|
||
Return a string which is the name of a function to call to initialize
|
||
the Objective C data structures for this file (and perhaps for other files
|
||
also).
|
||
|
||
struct objc_module { ... } _OBJC_MODULE = { ... }; */
|
||
|
||
static char *
|
||
build_module_descriptor ()
|
||
{
|
||
tree decl_specs, field_decl, field_decl_chain;
|
||
|
||
objc_module_template
|
||
= start_struct (RECORD_TYPE, get_identifier (UTAG_MODULE));
|
||
|
||
/* Long version; */
|
||
|
||
decl_specs = build_tree_list (NULL_TREE, ridpointers[(int) RID_LONG]);
|
||
field_decl = get_identifier ("version");
|
||
field_decl
|
||
= grokfield (input_filename, lineno, field_decl, decl_specs, NULL_TREE);
|
||
field_decl_chain = field_decl;
|
||
|
||
/* long size; */
|
||
|
||
decl_specs = build_tree_list (NULL_TREE, ridpointers[(int) RID_LONG]);
|
||
field_decl = get_identifier ("size");
|
||
field_decl
|
||
= grokfield (input_filename, lineno, field_decl, decl_specs, NULL_TREE);
|
||
chainon (field_decl_chain, field_decl);
|
||
|
||
/* char *name; */
|
||
|
||
decl_specs = build_tree_list (NULL_TREE, ridpointers[(int) RID_CHAR]);
|
||
field_decl = build1 (INDIRECT_REF, NULL_TREE, get_identifier ("name"));
|
||
field_decl
|
||
= grokfield (input_filename, lineno, field_decl, decl_specs, NULL_TREE);
|
||
chainon (field_decl_chain, field_decl);
|
||
|
||
|
||
if (!flag_next_runtime)
|
||
{
|
||
/* void *statics */
|
||
|
||
decl_specs = get_identifier (UTAG_STATICS);
|
||
decl_specs
|
||
= build_tree_list (NULL_TREE, xref_tag (RECORD_TYPE, decl_specs));
|
||
field_decl
|
||
= build1 (INDIRECT_REF, NULL_TREE, get_identifier ("statics"));
|
||
field_decl = grokfield (input_filename, lineno, field_decl,
|
||
decl_specs, NULL_TREE);
|
||
chainon (field_decl_chain, field_decl);
|
||
}
|
||
|
||
|
||
/* struct objc_symtab *symtab; */
|
||
|
||
decl_specs = get_identifier (UTAG_SYMTAB);
|
||
decl_specs = build_tree_list (NULL_TREE, xref_tag (RECORD_TYPE, decl_specs));
|
||
field_decl = build1 (INDIRECT_REF, NULL_TREE, get_identifier ("symtab"));
|
||
field_decl
|
||
= grokfield (input_filename, lineno, field_decl, decl_specs, NULL_TREE);
|
||
chainon (field_decl_chain, field_decl);
|
||
|
||
finish_struct (objc_module_template, field_decl_chain, NULL_TREE);
|
||
|
||
/* Create an instance of "objc_module". */
|
||
|
||
decl_specs = tree_cons (NULL_TREE, objc_module_template,
|
||
build_tree_list (NULL_TREE,
|
||
ridpointers[(int) RID_STATIC]));
|
||
|
||
UOBJC_MODULES_decl = start_decl (get_identifier ("_OBJC_MODULES"),
|
||
decl_specs, 1, NULL_TREE, NULL_TREE);
|
||
|
||
DECL_ARTIFICIAL (UOBJC_MODULES_decl) = 1;
|
||
DECL_IGNORED_P (UOBJC_MODULES_decl) = 1;
|
||
finish_decl (UOBJC_MODULES_decl,
|
||
init_module_descriptor (TREE_TYPE (UOBJC_MODULES_decl)),
|
||
NULL_TREE);
|
||
|
||
/* Mark the decl to avoid "defined but not used" warning. */
|
||
DECL_IN_SYSTEM_HEADER (UOBJC_MODULES_decl) = 1;
|
||
|
||
/* Generate a constructor call for the module descriptor.
|
||
This code was generated by reading the grammar rules
|
||
of c-parse.in; Therefore, it may not be the most efficient
|
||
way of generating the requisite code. */
|
||
|
||
if (flag_next_runtime)
|
||
return 0;
|
||
|
||
{
|
||
tree parms, function_decl, decelerator, void_list_node;
|
||
tree function_type;
|
||
extern tree get_file_function_name ();
|
||
tree init_function_name = get_file_function_name ('I');
|
||
|
||
/* Declare void __objc_execClass (void*); */
|
||
|
||
void_list_node = build_tree_list (NULL_TREE, void_type_node);
|
||
function_type
|
||
= build_function_type (void_type_node,
|
||
tree_cons (NULL_TREE, ptr_type_node,
|
||
void_list_node));
|
||
function_decl = build_decl (FUNCTION_DECL,
|
||
get_identifier (TAG_EXECCLASS),
|
||
function_type);
|
||
DECL_EXTERNAL (function_decl) = 1;
|
||
DECL_ARTIFICIAL (function_decl) = 1;
|
||
TREE_PUBLIC (function_decl) = 1;
|
||
|
||
pushdecl (function_decl);
|
||
rest_of_decl_compilation (function_decl, 0, 0, 0);
|
||
|
||
parms
|
||
= build_tree_list (NULL_TREE,
|
||
build_unary_op (ADDR_EXPR, UOBJC_MODULES_decl, 0));
|
||
decelerator = build_function_call (function_decl, parms);
|
||
|
||
/* void _GLOBAL_$I$<gnyf> () {objc_execClass (&L_OBJC_MODULES);} */
|
||
|
||
start_function (void_list_node,
|
||
build_parse_node (CALL_EXPR, init_function_name,
|
||
/* This has the format of the output
|
||
of get_parm_info. */
|
||
tree_cons (NULL_TREE, NULL_TREE,
|
||
void_list_node),
|
||
NULL_TREE),
|
||
NULL_TREE, NULL_TREE, 0);
|
||
#if 0 /* This should be turned back on later
|
||
for the systems where collect is not needed. */
|
||
/* Make these functions nonglobal
|
||
so each file can use the same name. */
|
||
TREE_PUBLIC (current_function_decl) = 0;
|
||
#endif
|
||
TREE_USED (current_function_decl) = 1;
|
||
store_parm_decls ();
|
||
|
||
assemble_external (function_decl);
|
||
c_expand_expr_stmt (decelerator);
|
||
|
||
TREE_PUBLIC (current_function_decl) = 1;
|
||
|
||
function_decl = current_function_decl;
|
||
finish_function (0);
|
||
|
||
/* Return the name of the constructor function. */
|
||
return XSTR (XEXP (DECL_RTL (function_decl), 0), 0);
|
||
}
|
||
}
|
||
|
||
/* extern const char _OBJC_STRINGS[]; */
|
||
|
||
static void
|
||
generate_forward_declaration_to_string_table ()
|
||
{
|
||
tree sc_spec, decl_specs, expr_decl;
|
||
|
||
sc_spec = tree_cons (NULL_TREE, ridpointers[(int) RID_EXTERN], NULL_TREE);
|
||
decl_specs = tree_cons (NULL_TREE, ridpointers[(int) RID_CHAR], sc_spec);
|
||
|
||
expr_decl
|
||
= build_nt (ARRAY_REF, get_identifier ("_OBJC_STRINGS"), NULL_TREE);
|
||
|
||
UOBJC_STRINGS_decl = define_decl (expr_decl, decl_specs);
|
||
}
|
||
|
||
/* Return the DECL of the string IDENT in the SECTION. */
|
||
|
||
static tree
|
||
get_objc_string_decl (ident, section)
|
||
tree ident;
|
||
enum string_section section;
|
||
{
|
||
tree chain, decl;
|
||
|
||
if (section == class_names)
|
||
chain = class_names_chain;
|
||
else if (section == meth_var_names)
|
||
chain = meth_var_names_chain;
|
||
else if (section == meth_var_types)
|
||
chain = meth_var_types_chain;
|
||
|
||
for (; chain != 0; chain = TREE_VALUE (chain))
|
||
if (TREE_VALUE (chain) == ident)
|
||
return (TREE_PURPOSE (chain));
|
||
|
||
abort ();
|
||
return NULL_TREE;
|
||
}
|
||
|
||
/* Output references to all statically allocated objects. Return the DECL
|
||
for the array built. */
|
||
|
||
static tree
|
||
generate_static_references ()
|
||
{
|
||
tree decls = NULL_TREE, ident, decl_spec, expr_decl, expr = NULL_TREE;
|
||
tree class_name, class, decl, instance, idecl, initlist;
|
||
tree cl_chain, in_chain, type;
|
||
int num_inst, num_class;
|
||
char buf[256];
|
||
|
||
if (flag_next_runtime)
|
||
abort ();
|
||
|
||
for (cl_chain = objc_static_instances, num_class = 0;
|
||
cl_chain; cl_chain = TREE_CHAIN (cl_chain), num_class++)
|
||
{
|
||
for (num_inst = 0, in_chain = TREE_PURPOSE (cl_chain);
|
||
in_chain; num_inst++, in_chain = TREE_CHAIN (in_chain));
|
||
|
||
sprintf (buf, "_OBJC_STATIC_INSTANCES_%d", num_class);
|
||
ident = get_identifier (buf);
|
||
|
||
expr_decl = build_nt (ARRAY_REF, ident, NULL_TREE);
|
||
decl_spec = tree_cons (NULL_TREE, build_pointer_type (void_type_node),
|
||
build_tree_list (NULL_TREE,
|
||
ridpointers[(int) RID_STATIC]));
|
||
decl = start_decl (expr_decl, decl_spec, 1, NULL_TREE, NULL_TREE);
|
||
DECL_CONTEXT (decl) = 0;
|
||
DECL_ARTIFICIAL (decl) = 1;
|
||
|
||
/* Output {class_name, ...}. */
|
||
class = TREE_VALUE (cl_chain);
|
||
class_name = get_objc_string_decl (TYPE_NAME (class), class_names);
|
||
initlist = build_tree_list (NULL_TREE,
|
||
build_unary_op (ADDR_EXPR, class_name, 1));
|
||
|
||
/* Output {..., instance, ...}. */
|
||
for (in_chain = TREE_PURPOSE (cl_chain);
|
||
in_chain; in_chain = TREE_CHAIN (in_chain))
|
||
{
|
||
expr = build_unary_op (ADDR_EXPR, TREE_VALUE (in_chain), 1);
|
||
initlist = tree_cons (NULL_TREE, expr, initlist);
|
||
}
|
||
|
||
/* Output {..., NULL}. */
|
||
initlist = tree_cons (NULL_TREE, build_int_2 (0, 0), initlist);
|
||
|
||
expr = build_constructor (TREE_TYPE (decl), nreverse (initlist));
|
||
finish_decl (decl, expr, NULL_TREE);
|
||
TREE_USED (decl) = 1;
|
||
|
||
type = build_array_type (build_pointer_type (void_type_node), 0);
|
||
decl = build_decl (VAR_DECL, ident, type);
|
||
make_decl_rtl (decl, 0, 1);
|
||
TREE_USED (decl) = 1;
|
||
decls
|
||
= tree_cons (NULL_TREE, build_unary_op (ADDR_EXPR, decl, 1), decls);
|
||
}
|
||
|
||
decls = tree_cons (NULL_TREE, build_int_2 (0, 0), decls);
|
||
ident = get_identifier ("_OBJC_STATIC_INSTANCES");
|
||
expr_decl = build_nt (ARRAY_REF, ident, NULL_TREE);
|
||
decl_spec = tree_cons (NULL_TREE, build_pointer_type (void_type_node),
|
||
build_tree_list (NULL_TREE,
|
||
ridpointers[(int) RID_STATIC]));
|
||
static_instances_decl
|
||
= start_decl (expr_decl, decl_spec, 1, NULL_TREE, NULL_TREE);
|
||
DECL_CONTEXT (static_instances_decl) = 0;
|
||
DECL_ARTIFICIAL (static_instances_decl) = 1;
|
||
end_temporary_allocation ();
|
||
expr = build_constructor (TREE_TYPE (static_instances_decl),
|
||
nreverse (decls));
|
||
finish_decl (static_instances_decl, expr, NULL_TREE);
|
||
}
|
||
|
||
/* Output all strings. */
|
||
|
||
static void
|
||
generate_strings ()
|
||
{
|
||
tree sc_spec, decl_specs, expr_decl;
|
||
tree chain, string_expr;
|
||
tree string, decl;
|
||
|
||
for (chain = class_names_chain; chain; chain = TREE_CHAIN (chain))
|
||
{
|
||
string = TREE_VALUE (chain);
|
||
decl = TREE_PURPOSE (chain);
|
||
sc_spec
|
||
= tree_cons (NULL_TREE, ridpointers[(int) RID_STATIC], NULL_TREE);
|
||
decl_specs = tree_cons (NULL_TREE, ridpointers[(int) RID_CHAR], sc_spec);
|
||
expr_decl = build_nt (ARRAY_REF, DECL_NAME (decl), NULL_TREE);
|
||
decl = start_decl (expr_decl, decl_specs, 1, NULL_TREE, NULL_TREE);
|
||
end_temporary_allocation ();
|
||
string_expr = my_build_string (IDENTIFIER_LENGTH (string) + 1,
|
||
IDENTIFIER_POINTER (string));
|
||
finish_decl (decl, string_expr, NULL_TREE);
|
||
}
|
||
|
||
for (chain = meth_var_names_chain; chain; chain = TREE_CHAIN (chain))
|
||
{
|
||
string = TREE_VALUE (chain);
|
||
decl = TREE_PURPOSE (chain);
|
||
sc_spec
|
||
= tree_cons (NULL_TREE, ridpointers[(int) RID_STATIC], NULL_TREE);
|
||
decl_specs = tree_cons (NULL_TREE, ridpointers[(int) RID_CHAR], sc_spec);
|
||
expr_decl = build_nt (ARRAY_REF, DECL_NAME (decl), NULL_TREE);
|
||
decl = start_decl (expr_decl, decl_specs, 1, NULL_TREE, NULL_TREE);
|
||
string_expr = my_build_string (IDENTIFIER_LENGTH (string) + 1,
|
||
IDENTIFIER_POINTER (string));
|
||
finish_decl (decl, string_expr, NULL_TREE);
|
||
}
|
||
|
||
for (chain = meth_var_types_chain; chain; chain = TREE_CHAIN (chain))
|
||
{
|
||
string = TREE_VALUE (chain);
|
||
decl = TREE_PURPOSE (chain);
|
||
sc_spec
|
||
= tree_cons (NULL_TREE, ridpointers[(int) RID_STATIC], NULL_TREE);
|
||
decl_specs = tree_cons (NULL_TREE, ridpointers[(int) RID_CHAR], sc_spec);
|
||
expr_decl = build_nt (ARRAY_REF, DECL_NAME (decl), NULL_TREE);
|
||
decl = start_decl (expr_decl, decl_specs, 1, NULL_TREE, NULL_TREE);
|
||
string_expr = my_build_string (IDENTIFIER_LENGTH (string) + 1,
|
||
IDENTIFIER_POINTER (string));
|
||
finish_decl (decl, string_expr, NULL_TREE);
|
||
}
|
||
}
|
||
|
||
static tree
|
||
build_selector_reference_decl (name)
|
||
tree name;
|
||
{
|
||
tree decl, ident;
|
||
char buf[256];
|
||
static int idx = 0;
|
||
|
||
sprintf (buf, "_OBJC_SELECTOR_REFERENCES_%d", idx++);
|
||
|
||
push_obstacks_nochange ();
|
||
end_temporary_allocation ();
|
||
|
||
ident = get_identifier (buf);
|
||
|
||
decl = build_decl (VAR_DECL, ident, selector_type);
|
||
DECL_EXTERNAL (decl) = 1;
|
||
TREE_PUBLIC (decl) = 1;
|
||
TREE_USED (decl) = 1;
|
||
TREE_READONLY (decl) = 1;
|
||
DECL_ARTIFICIAL (decl) = 1;
|
||
DECL_CONTEXT (decl) = 0;
|
||
|
||
make_decl_rtl (decl, 0, 1);
|
||
pushdecl_top_level (decl);
|
||
|
||
pop_obstacks ();
|
||
|
||
return decl;
|
||
}
|
||
|
||
/* Just a handy wrapper for add_objc_string. */
|
||
|
||
static tree
|
||
build_selector (ident)
|
||
tree ident;
|
||
{
|
||
tree expr = add_objc_string (ident, meth_var_names);
|
||
if (flag_typed_selectors)
|
||
return expr;
|
||
else
|
||
return build_c_cast (selector_type, expr); /* cast! */
|
||
}
|
||
|
||
/* Synthesize the following expr: (char *)&_OBJC_STRINGS[<offset>]
|
||
The cast stops the compiler from issuing the following message:
|
||
grok.m: warning: initialization of non-const * pointer from const *
|
||
grok.m: warning: initialization between incompatible pointer types. */
|
||
|
||
static tree
|
||
build_msg_pool_reference (offset)
|
||
int offset;
|
||
{
|
||
tree expr = build_int_2 (offset, 0);
|
||
tree cast;
|
||
|
||
expr = build_array_ref (UOBJC_STRINGS_decl, expr);
|
||
expr = build_unary_op (ADDR_EXPR, expr, 0);
|
||
|
||
cast = build_tree_list (build_tree_list (NULL_TREE,
|
||
ridpointers[(int) RID_CHAR]),
|
||
build1 (INDIRECT_REF, NULL_TREE, NULL_TREE));
|
||
TREE_TYPE (expr) = groktypename (cast);
|
||
return expr;
|
||
}
|
||
|
||
static tree
|
||
init_selector (offset)
|
||
int offset;
|
||
{
|
||
tree expr = build_msg_pool_reference (offset);
|
||
TREE_TYPE (expr) = selector_type;
|
||
return expr;
|
||
}
|
||
|
||
static void
|
||
build_selector_translation_table ()
|
||
{
|
||
tree sc_spec, decl_specs;
|
||
tree chain, initlist = NULL_TREE;
|
||
int offset = 0;
|
||
tree decl, var_decl, name;
|
||
|
||
/* The corresponding pop_obstacks is in finish_decl,
|
||
called at the end of this function. */
|
||
if (! flag_next_runtime)
|
||
push_obstacks_nochange ();
|
||
|
||
for (chain = sel_ref_chain; chain; chain = TREE_CHAIN (chain))
|
||
{
|
||
tree expr;
|
||
|
||
expr = build_selector (TREE_VALUE (chain));
|
||
|
||
if (flag_next_runtime)
|
||
{
|
||
name = DECL_NAME (TREE_PURPOSE (chain));
|
||
|
||
sc_spec = build_tree_list (NULL_TREE, ridpointers[(int) RID_STATIC]);
|
||
|
||
/* static SEL _OBJC_SELECTOR_REFERENCES_n = ...; */
|
||
decl_specs = tree_cons (NULL_TREE, selector_type, sc_spec);
|
||
|
||
var_decl = name;
|
||
|
||
/* The `decl' that is returned from start_decl is the one that we
|
||
forward declared in `build_selector_reference' */
|
||
decl = start_decl (var_decl, decl_specs, 1, NULL_TREE, NULL_TREE);
|
||
}
|
||
|
||
/* add one for the '\0' character */
|
||
offset += IDENTIFIER_LENGTH (TREE_VALUE (chain)) + 1;
|
||
|
||
if (flag_next_runtime)
|
||
finish_decl (decl, expr, NULL_TREE);
|
||
else
|
||
{
|
||
if (flag_typed_selectors)
|
||
{
|
||
tree eltlist = NULL_TREE;
|
||
tree encoding = get_proto_encoding (TREE_PURPOSE (chain));
|
||
eltlist = tree_cons (NULL_TREE, expr, NULL_TREE);
|
||
eltlist = tree_cons (NULL_TREE, encoding, eltlist);
|
||
expr = build_constructor (objc_selector_template,
|
||
nreverse (eltlist));
|
||
}
|
||
initlist = tree_cons (NULL_TREE, expr, initlist);
|
||
|
||
}
|
||
}
|
||
|
||
if (! flag_next_runtime)
|
||
{
|
||
/* Cause the variable and its initial value to be actually output. */
|
||
DECL_EXTERNAL (UOBJC_SELECTOR_TABLE_decl) = 0;
|
||
TREE_STATIC (UOBJC_SELECTOR_TABLE_decl) = 1;
|
||
/* NULL terminate the list and fix the decl for output. */
|
||
initlist = tree_cons (NULL_TREE, build_int_2 (0, 0), initlist);
|
||
DECL_INITIAL (UOBJC_SELECTOR_TABLE_decl) = (tree) 1;
|
||
initlist = build_constructor (TREE_TYPE (UOBJC_SELECTOR_TABLE_decl),
|
||
nreverse (initlist));
|
||
finish_decl (UOBJC_SELECTOR_TABLE_decl, initlist, NULL_TREE);
|
||
current_function_decl = NULL_TREE;
|
||
}
|
||
}
|
||
|
||
static tree
|
||
get_proto_encoding (proto)
|
||
tree proto;
|
||
{
|
||
tree encoding;
|
||
if (proto)
|
||
{
|
||
tree tmp_decl;
|
||
|
||
if (! METHOD_ENCODING (proto))
|
||
{
|
||
tmp_decl = build_tmp_function_decl ();
|
||
hack_method_prototype (proto, tmp_decl);
|
||
encoding = encode_method_prototype (proto, tmp_decl);
|
||
METHOD_ENCODING (proto) = encoding;
|
||
}
|
||
else
|
||
encoding = METHOD_ENCODING (proto);
|
||
|
||
return add_objc_string (encoding, meth_var_types);
|
||
}
|
||
else
|
||
return build_int_2 (0, 0);
|
||
}
|
||
|
||
/* sel_ref_chain is a list whose "value" fields will be instances of
|
||
identifier_node that represent the selector. */
|
||
|
||
static tree
|
||
build_typed_selector_reference (ident, proto)
|
||
tree ident, proto;
|
||
{
|
||
tree *chain = &sel_ref_chain;
|
||
tree expr;
|
||
int index = 0;
|
||
|
||
while (*chain)
|
||
{
|
||
if (TREE_PURPOSE (*chain) == ident && TREE_VALUE (*chain) == proto)
|
||
goto return_at_index;
|
||
|
||
index++;
|
||
chain = &TREE_CHAIN (*chain);
|
||
}
|
||
|
||
*chain = perm_tree_cons (proto, ident, NULL_TREE);
|
||
|
||
return_at_index:
|
||
expr = build_unary_op (ADDR_EXPR,
|
||
build_array_ref (UOBJC_SELECTOR_TABLE_decl,
|
||
build_int_2 (index, 0)),
|
||
1);
|
||
return build_c_cast (selector_type, expr);
|
||
}
|
||
|
||
static tree
|
||
build_selector_reference (ident)
|
||
tree ident;
|
||
{
|
||
tree *chain = &sel_ref_chain;
|
||
tree expr;
|
||
int index = 0;
|
||
|
||
while (*chain)
|
||
{
|
||
if (TREE_VALUE (*chain) == ident)
|
||
return (flag_next_runtime
|
||
? TREE_PURPOSE (*chain)
|
||
: build_array_ref (UOBJC_SELECTOR_TABLE_decl,
|
||
build_int_2 (index, 0)));
|
||
|
||
index++;
|
||
chain = &TREE_CHAIN (*chain);
|
||
}
|
||
|
||
expr = build_selector_reference_decl (ident);
|
||
|
||
*chain = perm_tree_cons (expr, ident, NULL_TREE);
|
||
|
||
return (flag_next_runtime
|
||
? expr
|
||
: build_array_ref (UOBJC_SELECTOR_TABLE_decl,
|
||
build_int_2 (index, 0)));
|
||
}
|
||
|
||
static tree
|
||
build_class_reference_decl (name)
|
||
tree name;
|
||
{
|
||
tree decl, ident;
|
||
char buf[256];
|
||
static int idx = 0;
|
||
|
||
sprintf (buf, "_OBJC_CLASS_REFERENCES_%d", idx++);
|
||
|
||
push_obstacks_nochange ();
|
||
end_temporary_allocation ();
|
||
|
||
ident = get_identifier (buf);
|
||
|
||
decl = build_decl (VAR_DECL, ident, objc_class_type);
|
||
DECL_EXTERNAL (decl) = 1;
|
||
TREE_PUBLIC (decl) = 1;
|
||
TREE_USED (decl) = 1;
|
||
TREE_READONLY (decl) = 1;
|
||
DECL_CONTEXT (decl) = 0;
|
||
DECL_ARTIFICIAL (decl) = 1;
|
||
|
||
make_decl_rtl (decl, 0, 1);
|
||
pushdecl_top_level (decl);
|
||
|
||
pop_obstacks ();
|
||
|
||
return decl;
|
||
}
|
||
|
||
/* Create a class reference, but don't create a variable to reference
|
||
it. */
|
||
|
||
static void
|
||
add_class_reference (ident)
|
||
tree ident;
|
||
{
|
||
tree chain;
|
||
|
||
if ((chain = cls_ref_chain))
|
||
{
|
||
tree tail;
|
||
do
|
||
{
|
||
if (ident == TREE_VALUE (chain))
|
||
return;
|
||
|
||
tail = chain;
|
||
chain = TREE_CHAIN (chain);
|
||
}
|
||
while (chain);
|
||
|
||
/* Append to the end of the list */
|
||
TREE_CHAIN (tail) = perm_tree_cons (NULL_TREE, ident, NULL_TREE);
|
||
}
|
||
else
|
||
cls_ref_chain = perm_tree_cons (NULL_TREE, ident, NULL_TREE);
|
||
}
|
||
|
||
/* Get a class reference, creating it if necessary. Also create the
|
||
reference variable. */
|
||
|
||
tree
|
||
get_class_reference (ident)
|
||
tree ident;
|
||
{
|
||
if (flag_next_runtime)
|
||
{
|
||
tree *chain;
|
||
tree decl;
|
||
|
||
for (chain = &cls_ref_chain; *chain; chain = &TREE_CHAIN (*chain))
|
||
if (TREE_VALUE (*chain) == ident)
|
||
{
|
||
if (! TREE_PURPOSE (*chain))
|
||
TREE_PURPOSE (*chain) = build_class_reference_decl (ident);
|
||
|
||
return TREE_PURPOSE (*chain);
|
||
}
|
||
|
||
decl = build_class_reference_decl (ident);
|
||
*chain = perm_tree_cons (decl, ident, NULL_TREE);
|
||
return decl;
|
||
}
|
||
else
|
||
{
|
||
tree params;
|
||
|
||
add_class_reference (ident);
|
||
|
||
params = build_tree_list (NULL_TREE,
|
||
my_build_string (IDENTIFIER_LENGTH (ident) + 1,
|
||
IDENTIFIER_POINTER (ident)));
|
||
|
||
assemble_external (objc_get_class_decl);
|
||
return build_function_call (objc_get_class_decl, params);
|
||
}
|
||
}
|
||
|
||
/* SEL_REFDEF_CHAIN is a list whose "value" fields will be instances
|
||
of identifier_node that represent the selector. It returns the
|
||
offset of the selector from the beginning of the _OBJC_STRINGS
|
||
pool. This offset is typically used by init_selector during code
|
||
generation.
|
||
|
||
For each string section we have a chain which maps identifier nodes
|
||
to decls for the strings. */
|
||
|
||
static tree
|
||
add_objc_string (ident, section)
|
||
tree ident;
|
||
enum string_section section;
|
||
{
|
||
tree *chain, decl;
|
||
|
||
if (section == class_names)
|
||
chain = &class_names_chain;
|
||
else if (section == meth_var_names)
|
||
chain = &meth_var_names_chain;
|
||
else if (section == meth_var_types)
|
||
chain = &meth_var_types_chain;
|
||
|
||
while (*chain)
|
||
{
|
||
if (TREE_VALUE (*chain) == ident)
|
||
return build_unary_op (ADDR_EXPR, TREE_PURPOSE (*chain), 1);
|
||
|
||
chain = &TREE_CHAIN (*chain);
|
||
}
|
||
|
||
decl = build_objc_string_decl (ident, section);
|
||
|
||
*chain = perm_tree_cons (decl, ident, NULL_TREE);
|
||
|
||
return build_unary_op (ADDR_EXPR, decl, 1);
|
||
}
|
||
|
||
static tree
|
||
build_objc_string_decl (name, section)
|
||
tree name;
|
||
enum string_section section;
|
||
{
|
||
tree decl, ident;
|
||
char buf[256];
|
||
static int class_names_idx = 0;
|
||
static int meth_var_names_idx = 0;
|
||
static int meth_var_types_idx = 0;
|
||
|
||
if (section == class_names)
|
||
sprintf (buf, "_OBJC_CLASS_NAME_%d", class_names_idx++);
|
||
else if (section == meth_var_names)
|
||
sprintf (buf, "_OBJC_METH_VAR_NAME_%d", meth_var_names_idx++);
|
||
else if (section == meth_var_types)
|
||
sprintf (buf, "_OBJC_METH_VAR_TYPE_%d", meth_var_types_idx++);
|
||
|
||
push_obstacks_nochange ();
|
||
end_temporary_allocation ();
|
||
ident = get_identifier (buf);
|
||
|
||
decl = build_decl (VAR_DECL, ident, build_array_type (char_type_node, 0));
|
||
DECL_EXTERNAL (decl) = 1;
|
||
TREE_PUBLIC (decl) = 1;
|
||
TREE_USED (decl) = 1;
|
||
TREE_READONLY (decl) = 1;
|
||
TREE_CONSTANT (decl) = 1;
|
||
DECL_CONTEXT (decl) = 0;
|
||
DECL_ARTIFICIAL (decl) = 1;
|
||
|
||
make_decl_rtl (decl, 0, 1);
|
||
pushdecl_top_level (decl);
|
||
|
||
pop_obstacks ();
|
||
|
||
return decl;
|
||
}
|
||
|
||
|
||
void
|
||
objc_declare_alias (alias_ident, class_ident)
|
||
tree alias_ident;
|
||
tree class_ident;
|
||
{
|
||
if (!doing_objc_thang)
|
||
objc_fatal ();
|
||
|
||
if (is_class_name (class_ident) != class_ident)
|
||
warning ("Cannot find class `%s'", IDENTIFIER_POINTER (class_ident));
|
||
else if (is_class_name (alias_ident))
|
||
warning ("Class `%s' already exists", IDENTIFIER_POINTER (alias_ident));
|
||
else
|
||
alias_chain = tree_cons (class_ident, alias_ident, alias_chain);
|
||
}
|
||
|
||
void
|
||
objc_declare_class (ident_list)
|
||
tree ident_list;
|
||
{
|
||
tree list;
|
||
|
||
if (!doing_objc_thang)
|
||
objc_fatal ();
|
||
|
||
for (list = ident_list; list; list = TREE_CHAIN (list))
|
||
{
|
||
tree ident = TREE_VALUE (list);
|
||
tree decl;
|
||
|
||
if ((decl = lookup_name (ident)))
|
||
{
|
||
error ("`%s' redeclared as different kind of symbol",
|
||
IDENTIFIER_POINTER (ident));
|
||
error_with_decl (decl, "previous declaration of `%s'");
|
||
}
|
||
|
||
if (! is_class_name (ident))
|
||
{
|
||
tree record = xref_tag (RECORD_TYPE, ident);
|
||
TREE_STATIC_TEMPLATE (record) = 1;
|
||
class_chain = tree_cons (NULL_TREE, ident, class_chain);
|
||
}
|
||
}
|
||
}
|
||
|
||
tree
|
||
is_class_name (ident)
|
||
tree ident;
|
||
{
|
||
tree chain;
|
||
|
||
if (lookup_interface (ident))
|
||
return ident;
|
||
|
||
for (chain = class_chain; chain; chain = TREE_CHAIN (chain))
|
||
{
|
||
if (ident == TREE_VALUE (chain))
|
||
return ident;
|
||
}
|
||
|
||
for (chain = alias_chain; chain; chain = TREE_CHAIN (chain))
|
||
{
|
||
if (ident == TREE_VALUE (chain))
|
||
return TREE_PURPOSE (chain);
|
||
}
|
||
|
||
return 0;
|
||
}
|
||
|
||
tree
|
||
lookup_interface (ident)
|
||
tree ident;
|
||
{
|
||
tree chain;
|
||
|
||
for (chain = interface_chain; chain; chain = TREE_CHAIN (chain))
|
||
{
|
||
if (ident == CLASS_NAME (chain))
|
||
return chain;
|
||
}
|
||
return NULL_TREE;
|
||
}
|
||
|
||
static tree
|
||
objc_copy_list (list, head)
|
||
tree list;
|
||
tree *head;
|
||
{
|
||
tree newlist = NULL_TREE, tail = NULL_TREE;
|
||
|
||
while (list)
|
||
{
|
||
tail = copy_node (list);
|
||
|
||
/* The following statement fixes a bug when inheriting instance
|
||
variables that are declared to be bitfields. finish_struct
|
||
expects to find the width of the bitfield in DECL_INITIAL,
|
||
which it nulls out after processing the decl of the super
|
||
class...rather than change the way finish_struct works (which
|
||
is risky), I create the situation it expects...s.naroff
|
||
(7/23/89). */
|
||
|
||
if (DECL_BIT_FIELD (tail) && DECL_INITIAL (tail) == 0)
|
||
DECL_INITIAL (tail) = build_int_2 (DECL_FIELD_SIZE (tail), 0);
|
||
|
||
newlist = chainon (newlist, tail);
|
||
list = TREE_CHAIN (list);
|
||
}
|
||
|
||
*head = newlist;
|
||
return tail;
|
||
}
|
||
|
||
/* Used by: build_private_template, get_class_ivars, and
|
||
continue_class. COPY is 1 when called from @defs. In this case
|
||
copy all fields. Otherwise don't copy leaf ivars since we rely on
|
||
them being side-effected exactly once by finish_struct. */
|
||
|
||
static tree
|
||
build_ivar_chain (interface, copy)
|
||
tree interface;
|
||
int copy;
|
||
{
|
||
tree my_name, super_name, ivar_chain;
|
||
|
||
my_name = CLASS_NAME (interface);
|
||
super_name = CLASS_SUPER_NAME (interface);
|
||
|
||
/* Possibly copy leaf ivars. */
|
||
if (copy)
|
||
objc_copy_list (CLASS_IVARS (interface), &ivar_chain);
|
||
else
|
||
ivar_chain = CLASS_IVARS (interface);
|
||
|
||
while (super_name)
|
||
{
|
||
tree op1;
|
||
tree super_interface = lookup_interface (super_name);
|
||
|
||
if (!super_interface)
|
||
{
|
||
/* fatal did not work with 2 args...should fix */
|
||
error ("Cannot find interface declaration for `%s', superclass of `%s'",
|
||
IDENTIFIER_POINTER (super_name),
|
||
IDENTIFIER_POINTER (my_name));
|
||
exit (FATAL_EXIT_CODE);
|
||
}
|
||
|
||
if (super_interface == interface)
|
||
{
|
||
fatal ("Circular inheritance in interface declaration for `%s'",
|
||
IDENTIFIER_POINTER (super_name));
|
||
}
|
||
|
||
interface = super_interface;
|
||
my_name = CLASS_NAME (interface);
|
||
super_name = CLASS_SUPER_NAME (interface);
|
||
|
||
op1 = CLASS_IVARS (interface);
|
||
if (op1)
|
||
{
|
||
tree head, tail = objc_copy_list (op1, &head);
|
||
|
||
/* Prepend super class ivars...make a copy of the list, we
|
||
do not want to alter the original. */
|
||
TREE_CHAIN (tail) = ivar_chain;
|
||
ivar_chain = head;
|
||
}
|
||
}
|
||
return ivar_chain;
|
||
}
|
||
|
||
/* struct <classname> {
|
||
struct objc_class *isa;
|
||
...
|
||
}; */
|
||
|
||
static tree
|
||
build_private_template (class)
|
||
tree class;
|
||
{
|
||
tree ivar_context;
|
||
|
||
if (CLASS_STATIC_TEMPLATE (class))
|
||
{
|
||
uprivate_record = CLASS_STATIC_TEMPLATE (class);
|
||
ivar_context = TYPE_FIELDS (CLASS_STATIC_TEMPLATE (class));
|
||
}
|
||
else
|
||
{
|
||
uprivate_record = start_struct (RECORD_TYPE, CLASS_NAME (class));
|
||
|
||
ivar_context = build_ivar_chain (class, 0);
|
||
|
||
finish_struct (uprivate_record, ivar_context, NULL_TREE);
|
||
|
||
CLASS_STATIC_TEMPLATE (class) = uprivate_record;
|
||
|
||
/* mark this record as class template - for class type checking */
|
||
TREE_STATIC_TEMPLATE (uprivate_record) = 1;
|
||
}
|
||
|
||
instance_type
|
||
= groktypename (build_tree_list (build_tree_list (NULL_TREE,
|
||
uprivate_record),
|
||
build1 (INDIRECT_REF, NULL_TREE,
|
||
NULL_TREE)));
|
||
|
||
return ivar_context;
|
||
}
|
||
|
||
/* Begin code generation for protocols... */
|
||
|
||
/* struct objc_protocol {
|
||
char *protocol_name;
|
||
struct objc_protocol **protocol_list;
|
||
struct objc_method_desc *instance_methods;
|
||
struct objc_method_desc *class_methods;
|
||
}; */
|
||
|
||
static tree
|
||
build_protocol_template ()
|
||
{
|
||
tree decl_specs, field_decl, field_decl_chain;
|
||
tree template;
|
||
|
||
template = start_struct (RECORD_TYPE, get_identifier (UTAG_PROTOCOL));
|
||
|
||
/* struct objc_class *isa; */
|
||
|
||
decl_specs = build_tree_list (NULL_TREE, xref_tag (RECORD_TYPE,
|
||
get_identifier (UTAG_CLASS)));
|
||
field_decl = build1 (INDIRECT_REF, NULL_TREE, get_identifier ("isa"));
|
||
field_decl
|
||
= grokfield (input_filename, lineno, field_decl, decl_specs, NULL_TREE);
|
||
field_decl_chain = field_decl;
|
||
|
||
/* char *protocol_name; */
|
||
|
||
decl_specs = build_tree_list (NULL_TREE, ridpointers[(int) RID_CHAR]);
|
||
field_decl
|
||
= build1 (INDIRECT_REF, NULL_TREE, get_identifier ("protocol_name"));
|
||
field_decl
|
||
= grokfield (input_filename, lineno, field_decl, decl_specs, NULL_TREE);
|
||
chainon (field_decl_chain, field_decl);
|
||
|
||
/* struct objc_protocol **protocol_list; */
|
||
|
||
decl_specs = build_tree_list (NULL_TREE, template);
|
||
field_decl
|
||
= build1 (INDIRECT_REF, NULL_TREE, get_identifier ("protocol_list"));
|
||
field_decl = build1 (INDIRECT_REF, NULL_TREE, field_decl);
|
||
field_decl
|
||
= grokfield (input_filename, lineno, field_decl, decl_specs, NULL_TREE);
|
||
chainon (field_decl_chain, field_decl);
|
||
|
||
/* struct objc_method_list *instance_methods; */
|
||
|
||
decl_specs
|
||
= build_tree_list (NULL_TREE,
|
||
xref_tag (RECORD_TYPE,
|
||
get_identifier (UTAG_METHOD_PROTOTYPE_LIST)));
|
||
field_decl
|
||
= build1 (INDIRECT_REF, NULL_TREE, get_identifier ("instance_methods"));
|
||
field_decl
|
||
= grokfield (input_filename, lineno, field_decl, decl_specs, NULL_TREE);
|
||
chainon (field_decl_chain, field_decl);
|
||
|
||
/* struct objc_method_list *class_methods; */
|
||
|
||
decl_specs
|
||
= build_tree_list (NULL_TREE,
|
||
xref_tag (RECORD_TYPE,
|
||
get_identifier (UTAG_METHOD_PROTOTYPE_LIST)));
|
||
field_decl
|
||
= build1 (INDIRECT_REF, NULL_TREE, get_identifier ("class_methods"));
|
||
field_decl
|
||
= grokfield (input_filename, lineno, field_decl, decl_specs, NULL_TREE);
|
||
chainon (field_decl_chain, field_decl);
|
||
|
||
return finish_struct (template, field_decl_chain, NULL_TREE);
|
||
}
|
||
|
||
static tree
|
||
build_descriptor_table_initializer (type, entries)
|
||
tree type;
|
||
tree entries;
|
||
{
|
||
tree initlist = NULL_TREE;
|
||
|
||
do
|
||
{
|
||
tree eltlist = NULL_TREE;
|
||
|
||
eltlist
|
||
= tree_cons (NULL_TREE,
|
||
build_selector (METHOD_SEL_NAME (entries)), NULL_TREE);
|
||
eltlist
|
||
= tree_cons (NULL_TREE,
|
||
add_objc_string (METHOD_ENCODING (entries),
|
||
meth_var_types),
|
||
eltlist);
|
||
|
||
initlist
|
||
= tree_cons (NULL_TREE,
|
||
build_constructor (type, nreverse (eltlist)), initlist);
|
||
|
||
entries = TREE_CHAIN (entries);
|
||
}
|
||
while (entries);
|
||
|
||
return build_constructor (build_array_type (type, 0), nreverse (initlist));
|
||
}
|
||
|
||
/* struct objc_method_prototype_list {
|
||
int count;
|
||
struct objc_method_prototype {
|
||
SEL name;
|
||
char *types;
|
||
} list[1];
|
||
}; */
|
||
|
||
static tree
|
||
build_method_prototype_list_template (list_type, size)
|
||
tree list_type;
|
||
int size;
|
||
{
|
||
tree objc_ivar_list_record;
|
||
tree decl_specs, field_decl, field_decl_chain;
|
||
|
||
/* Generate an unnamed struct definition. */
|
||
|
||
objc_ivar_list_record = start_struct (RECORD_TYPE, NULL_TREE);
|
||
|
||
/* int method_count; */
|
||
|
||
decl_specs = build_tree_list (NULL_TREE, ridpointers[(int) RID_INT]);
|
||
field_decl = get_identifier ("method_count");
|
||
|
||
field_decl
|
||
= grokfield (input_filename, lineno, field_decl, decl_specs, NULL_TREE);
|
||
field_decl_chain = field_decl;
|
||
|
||
/* struct objc_method method_list[]; */
|
||
|
||
decl_specs = build_tree_list (NULL_TREE, list_type);
|
||
field_decl = build_nt (ARRAY_REF, get_identifier ("method_list"),
|
||
build_int_2 (size, 0));
|
||
|
||
field_decl
|
||
= grokfield (input_filename, lineno, field_decl, decl_specs, NULL_TREE);
|
||
chainon (field_decl_chain, field_decl);
|
||
|
||
finish_struct (objc_ivar_list_record, field_decl_chain, NULL_TREE);
|
||
|
||
return objc_ivar_list_record;
|
||
}
|
||
|
||
static tree
|
||
build_method_prototype_template ()
|
||
{
|
||
tree proto_record;
|
||
tree decl_specs, field_decl, field_decl_chain;
|
||
|
||
proto_record
|
||
= start_struct (RECORD_TYPE, get_identifier (UTAG_METHOD_PROTOTYPE));
|
||
|
||
#ifdef OBJC_INT_SELECTORS
|
||
/* unsigned int _cmd; */
|
||
decl_specs
|
||
= tree_cons (NULL_TREE, ridpointers[(int) RID_UNSIGNED], NULL_TREE);
|
||
decl_specs = tree_cons (NULL_TREE, ridpointers[(int) RID_INT], decl_specs);
|
||
field_decl = get_identifier ("_cmd");
|
||
#else /* OBJC_INT_SELECTORS */
|
||
/* struct objc_selector *_cmd; */
|
||
decl_specs = tree_cons (NULL_TREE, xref_tag (RECORD_TYPE,
|
||
get_identifier (TAG_SELECTOR)), NULL_TREE);
|
||
field_decl = build1 (INDIRECT_REF, NULL_TREE, get_identifier ("_cmd"));
|
||
#endif /* OBJC_INT_SELECTORS */
|
||
|
||
field_decl
|
||
= grokfield (input_filename, lineno, field_decl, decl_specs, NULL_TREE);
|
||
field_decl_chain = field_decl;
|
||
|
||
decl_specs = tree_cons (NULL_TREE, ridpointers[(int) RID_CHAR], NULL_TREE);
|
||
field_decl
|
||
= build1 (INDIRECT_REF, NULL_TREE, get_identifier ("method_types"));
|
||
field_decl
|
||
= grokfield (input_filename, lineno, field_decl, decl_specs, NULL_TREE);
|
||
chainon (field_decl_chain, field_decl);
|
||
|
||
finish_struct (proto_record, field_decl_chain, NULL_TREE);
|
||
|
||
return proto_record;
|
||
}
|
||
|
||
/* True if last call to forwarding_offset yielded a register offset. */
|
||
static int offset_is_register;
|
||
|
||
static int
|
||
forwarding_offset (parm)
|
||
tree parm;
|
||
{
|
||
int offset_in_bytes;
|
||
|
||
if (GET_CODE (DECL_INCOMING_RTL (parm)) == MEM)
|
||
{
|
||
rtx addr = XEXP (DECL_INCOMING_RTL (parm), 0);
|
||
|
||
/* ??? Here we assume that the parm address is indexed
|
||
off the frame pointer or arg pointer.
|
||
If that is not true, we produce meaningless results,
|
||
but do not crash. */
|
||
if (GET_CODE (addr) == PLUS
|
||
&& GET_CODE (XEXP (addr, 1)) == CONST_INT)
|
||
offset_in_bytes = INTVAL (XEXP (addr, 1));
|
||
else
|
||
offset_in_bytes = 0;
|
||
|
||
offset_in_bytes += OBJC_FORWARDING_STACK_OFFSET;
|
||
offset_is_register = 0;
|
||
}
|
||
else if (GET_CODE (DECL_INCOMING_RTL (parm)) == REG)
|
||
{
|
||
int regno = REGNO (DECL_INCOMING_RTL (parm));
|
||
offset_in_bytes = apply_args_register_offset (regno);
|
||
offset_is_register = 1;
|
||
}
|
||
else
|
||
return 0;
|
||
|
||
/* This is the case where the parm is passed as an int or double
|
||
and it is converted to a char, short or float and stored back
|
||
in the parmlist. In this case, describe the parm
|
||
with the variable's declared type, and adjust the address
|
||
if the least significant bytes (which we are using) are not
|
||
the first ones. */
|
||
if (BYTES_BIG_ENDIAN && TREE_TYPE (parm) != DECL_ARG_TYPE (parm))
|
||
offset_in_bytes += (GET_MODE_SIZE (TYPE_MODE (DECL_ARG_TYPE (parm)))
|
||
- GET_MODE_SIZE (GET_MODE (DECL_RTL (parm))));
|
||
|
||
return offset_in_bytes;
|
||
}
|
||
|
||
static tree
|
||
encode_method_prototype (method_decl, func_decl)
|
||
tree method_decl;
|
||
tree func_decl;
|
||
{
|
||
tree parms;
|
||
int stack_size, i;
|
||
tree user_args;
|
||
int max_parm_end = 0;
|
||
char buf[40];
|
||
tree result;
|
||
|
||
/* ONEWAY and BYCOPY, for remote object are the only method qualifiers. */
|
||
encode_type_qualifiers (TREE_PURPOSE (TREE_TYPE (method_decl)));
|
||
|
||
/* C type. */
|
||
encode_type (TREE_TYPE (TREE_TYPE (func_decl)),
|
||
obstack_object_size (&util_obstack),
|
||
OBJC_ENCODE_INLINE_DEFS);
|
||
|
||
/* Stack size. */
|
||
for (parms = DECL_ARGUMENTS (func_decl); parms;
|
||
parms = TREE_CHAIN (parms))
|
||
{
|
||
int parm_end = (forwarding_offset (parms)
|
||
+ (TREE_INT_CST_LOW (TYPE_SIZE (TREE_TYPE (parms)))
|
||
/ BITS_PER_UNIT));
|
||
|
||
if (!offset_is_register && max_parm_end < parm_end)
|
||
max_parm_end = parm_end;
|
||
}
|
||
|
||
stack_size = max_parm_end - OBJC_FORWARDING_MIN_OFFSET;
|
||
|
||
sprintf (buf, "%d", stack_size);
|
||
obstack_grow (&util_obstack, buf, strlen (buf));
|
||
|
||
user_args = METHOD_SEL_ARGS (method_decl);
|
||
|
||
/* Argument types. */
|
||
for (parms = DECL_ARGUMENTS (func_decl), i = 0; parms;
|
||
parms = TREE_CHAIN (parms), i++)
|
||
{
|
||
/* Process argument qualifiers for user supplied arguments. */
|
||
if (i > 1)
|
||
{
|
||
encode_type_qualifiers (TREE_PURPOSE (TREE_TYPE (user_args)));
|
||
user_args = TREE_CHAIN (user_args);
|
||
}
|
||
|
||
/* Type. */
|
||
encode_type (TREE_TYPE (parms),
|
||
obstack_object_size (&util_obstack),
|
||
OBJC_ENCODE_INLINE_DEFS);
|
||
|
||
/* Compute offset. */
|
||
sprintf (buf, "%d", forwarding_offset (parms));
|
||
|
||
/* Indicate register. */
|
||
if (offset_is_register)
|
||
obstack_1grow (&util_obstack, '+');
|
||
|
||
obstack_grow (&util_obstack, buf, strlen (buf));
|
||
}
|
||
|
||
obstack_1grow (&util_obstack, '\0');
|
||
result = get_identifier (obstack_finish (&util_obstack));
|
||
obstack_free (&util_obstack, util_firstobj);
|
||
return result;
|
||
}
|
||
|
||
static tree
|
||
generate_descriptor_table (type, name, size, list, proto)
|
||
tree type;
|
||
char *name;
|
||
int size;
|
||
tree list;
|
||
tree proto;
|
||
{
|
||
tree sc_spec, decl_specs, decl, initlist;
|
||
|
||
sc_spec = tree_cons (NULL_TREE, ridpointers[(int) RID_STATIC], NULL_TREE);
|
||
decl_specs = tree_cons (NULL_TREE, type, sc_spec);
|
||
|
||
decl = start_decl (synth_id_with_class_suffix (name, proto),
|
||
decl_specs, 1, NULL_TREE, NULL_TREE);
|
||
|
||
initlist = build_tree_list (NULL_TREE, build_int_2 (size, 0));
|
||
initlist = tree_cons (NULL_TREE, list, initlist);
|
||
|
||
finish_decl (decl, build_constructor (type, nreverse (initlist)),
|
||
NULL_TREE);
|
||
|
||
return decl;
|
||
}
|
||
|
||
static void
|
||
generate_method_descriptors (protocol) /* generate_dispatch_tables */
|
||
tree protocol;
|
||
{
|
||
static tree objc_method_prototype_template;
|
||
tree initlist, chain, method_list_template;
|
||
tree cast, variable_length_type;
|
||
int size;
|
||
|
||
if (!objc_method_prototype_template)
|
||
objc_method_prototype_template = build_method_prototype_template ();
|
||
|
||
cast = build_tree_list (build_tree_list (NULL_TREE, xref_tag (RECORD_TYPE,
|
||
get_identifier (UTAG_METHOD_PROTOTYPE_LIST))),
|
||
NULL_TREE);
|
||
variable_length_type = groktypename (cast);
|
||
|
||
chain = PROTOCOL_CLS_METHODS (protocol);
|
||
if (chain)
|
||
{
|
||
size = list_length (chain);
|
||
|
||
method_list_template
|
||
= build_method_prototype_list_template (objc_method_prototype_template,
|
||
size);
|
||
|
||
initlist
|
||
= build_descriptor_table_initializer (objc_method_prototype_template,
|
||
chain);
|
||
|
||
UOBJC_CLASS_METHODS_decl
|
||
= generate_descriptor_table (method_list_template,
|
||
"_OBJC_PROTOCOL_CLASS_METHODS",
|
||
size, initlist, protocol);
|
||
TREE_TYPE (UOBJC_CLASS_METHODS_decl) = variable_length_type;
|
||
}
|
||
else
|
||
UOBJC_CLASS_METHODS_decl = 0;
|
||
|
||
chain = PROTOCOL_NST_METHODS (protocol);
|
||
if (chain)
|
||
{
|
||
size = list_length (chain);
|
||
|
||
method_list_template
|
||
= build_method_prototype_list_template (objc_method_prototype_template,
|
||
size);
|
||
initlist
|
||
= build_descriptor_table_initializer (objc_method_prototype_template,
|
||
chain);
|
||
|
||
UOBJC_INSTANCE_METHODS_decl
|
||
= generate_descriptor_table (method_list_template,
|
||
"_OBJC_PROTOCOL_INSTANCE_METHODS",
|
||
size, initlist, protocol);
|
||
TREE_TYPE (UOBJC_INSTANCE_METHODS_decl) = variable_length_type;
|
||
}
|
||
else
|
||
UOBJC_INSTANCE_METHODS_decl = 0;
|
||
}
|
||
|
||
static tree
|
||
build_tmp_function_decl ()
|
||
{
|
||
tree decl_specs, expr_decl, parms;
|
||
static int xxx = 0;
|
||
char buffer[80];
|
||
|
||
/* struct objc_object *objc_xxx (id, SEL, ...); */
|
||
pushlevel (0);
|
||
decl_specs = build_tree_list (NULL_TREE, objc_object_reference);
|
||
push_parm_decl (build_tree_list
|
||
(build_tree_list (decl_specs,
|
||
build1 (INDIRECT_REF, NULL_TREE,
|
||
NULL_TREE)),
|
||
build_tree_list (NULL_TREE, NULL_TREE)));
|
||
|
||
decl_specs = build_tree_list (NULL_TREE, xref_tag (RECORD_TYPE,
|
||
get_identifier (TAG_SELECTOR)));
|
||
expr_decl = build1 (INDIRECT_REF, NULL_TREE, NULL_TREE);
|
||
|
||
push_parm_decl (build_tree_list (build_tree_list (decl_specs, expr_decl),
|
||
build_tree_list (NULL_TREE, NULL_TREE)));
|
||
parms = get_parm_info (0);
|
||
poplevel (0, 0, 0);
|
||
|
||
decl_specs = build_tree_list (NULL_TREE, objc_object_reference);
|
||
sprintf (buffer, "__objc_tmp_%x", xxx++);
|
||
expr_decl = build_nt (CALL_EXPR, get_identifier (buffer), parms, NULL_TREE);
|
||
expr_decl = build1 (INDIRECT_REF, NULL_TREE, expr_decl);
|
||
|
||
return define_decl (expr_decl, decl_specs);
|
||
}
|
||
|
||
static void
|
||
hack_method_prototype (nst_methods, tmp_decl)
|
||
tree nst_methods;
|
||
tree tmp_decl;
|
||
{
|
||
tree parms;
|
||
tree parm;
|
||
|
||
/* Hack to avoid problem with static typing of self arg. */
|
||
TREE_SET_CODE (nst_methods, CLASS_METHOD_DECL);
|
||
start_method_def (nst_methods);
|
||
TREE_SET_CODE (nst_methods, INSTANCE_METHOD_DECL);
|
||
|
||
if (METHOD_ADD_ARGS (nst_methods) == (tree) 1)
|
||
parms = get_parm_info (0); /* we have a `, ...' */
|
||
else
|
||
parms = get_parm_info (1); /* place a `void_at_end' */
|
||
|
||
poplevel (0, 0, 0); /* Must be called BEFORE start_function. */
|
||
|
||
/* Usually called from store_parm_decls -> init_function_start. */
|
||
|
||
DECL_ARGUMENTS (tmp_decl) = TREE_PURPOSE (parms);
|
||
current_function_decl = tmp_decl;
|
||
|
||
{
|
||
/* Code taken from start_function. */
|
||
tree restype = TREE_TYPE (TREE_TYPE (tmp_decl));
|
||
/* Promote the value to int before returning it. */
|
||
if (TREE_CODE (restype) == INTEGER_TYPE
|
||
&& TYPE_PRECISION (restype) < TYPE_PRECISION (integer_type_node))
|
||
restype = integer_type_node;
|
||
DECL_RESULT (tmp_decl) = build_decl (RESULT_DECL, 0, restype);
|
||
}
|
||
|
||
for (parm = DECL_ARGUMENTS (tmp_decl); parm; parm = TREE_CHAIN (parm))
|
||
DECL_CONTEXT (parm) = tmp_decl;
|
||
|
||
init_function_start (tmp_decl, "objc-act", 0);
|
||
|
||
/* Typically called from expand_function_start for function definitions. */
|
||
assign_parms (tmp_decl, 0);
|
||
|
||
/* install return type */
|
||
TREE_TYPE (TREE_TYPE (tmp_decl)) = groktypename (TREE_TYPE (nst_methods));
|
||
|
||
}
|
||
|
||
static void
|
||
generate_protocol_references (plist)
|
||
tree plist;
|
||
{
|
||
tree lproto;
|
||
|
||
/* Forward declare protocols referenced. */
|
||
for (lproto = plist; lproto; lproto = TREE_CHAIN (lproto))
|
||
{
|
||
tree proto = TREE_VALUE (lproto);
|
||
|
||
if (TREE_CODE (proto) == PROTOCOL_INTERFACE_TYPE
|
||
&& PROTOCOL_NAME (proto))
|
||
{
|
||
if (! PROTOCOL_FORWARD_DECL (proto))
|
||
build_protocol_reference (proto);
|
||
|
||
if (PROTOCOL_LIST (proto))
|
||
generate_protocol_references (PROTOCOL_LIST (proto));
|
||
}
|
||
}
|
||
}
|
||
|
||
static void
|
||
generate_protocols ()
|
||
{
|
||
tree p, tmp_decl, encoding;
|
||
tree sc_spec, decl_specs, decl;
|
||
tree initlist, protocol_name_expr, refs_decl, refs_expr;
|
||
tree cast_type2 = 0;
|
||
|
||
tmp_decl = build_tmp_function_decl ();
|
||
|
||
if (! objc_protocol_template)
|
||
objc_protocol_template = build_protocol_template ();
|
||
|
||
/* If a protocol was directly referenced, pull in indirect references. */
|
||
for (p = protocol_chain; p; p = TREE_CHAIN (p))
|
||
if (PROTOCOL_FORWARD_DECL (p) && PROTOCOL_LIST (p))
|
||
generate_protocol_references (PROTOCOL_LIST (p));
|
||
|
||
for (p = protocol_chain; p; p = TREE_CHAIN (p))
|
||
{
|
||
tree nst_methods = PROTOCOL_NST_METHODS (p);
|
||
tree cls_methods = PROTOCOL_CLS_METHODS (p);
|
||
|
||
/* If protocol wasn't referenced, don't generate any code. */
|
||
if (! PROTOCOL_FORWARD_DECL (p))
|
||
continue;
|
||
|
||
/* Make sure we link in the Protocol class. */
|
||
add_class_reference (get_identifier (PROTOCOL_OBJECT_CLASS_NAME));
|
||
|
||
while (nst_methods)
|
||
{
|
||
if (! METHOD_ENCODING (nst_methods))
|
||
{
|
||
hack_method_prototype (nst_methods, tmp_decl);
|
||
encoding = encode_method_prototype (nst_methods, tmp_decl);
|
||
METHOD_ENCODING (nst_methods) = encoding;
|
||
}
|
||
nst_methods = TREE_CHAIN (nst_methods);
|
||
}
|
||
|
||
while (cls_methods)
|
||
{
|
||
if (! METHOD_ENCODING (cls_methods))
|
||
{
|
||
hack_method_prototype (cls_methods, tmp_decl);
|
||
encoding = encode_method_prototype (cls_methods, tmp_decl);
|
||
METHOD_ENCODING (cls_methods) = encoding;
|
||
}
|
||
|
||
cls_methods = TREE_CHAIN (cls_methods);
|
||
}
|
||
generate_method_descriptors (p);
|
||
|
||
if (PROTOCOL_LIST (p))
|
||
refs_decl = generate_protocol_list (p);
|
||
else
|
||
refs_decl = 0;
|
||
|
||
/* static struct objc_protocol _OBJC_PROTOCOL_<mumble>; */
|
||
|
||
sc_spec = tree_cons (NULL_TREE, ridpointers[(int) RID_STATIC],
|
||
NULL_TREE);
|
||
decl_specs = tree_cons (NULL_TREE, objc_protocol_template, sc_spec);
|
||
|
||
decl = start_decl (synth_id_with_class_suffix ("_OBJC_PROTOCOL", p),
|
||
decl_specs, 1, NULL_TREE, NULL_TREE);
|
||
|
||
protocol_name_expr = add_objc_string (PROTOCOL_NAME (p), class_names);
|
||
|
||
if (refs_decl)
|
||
{
|
||
if (!cast_type2)
|
||
cast_type2
|
||
= groktypename
|
||
(build_tree_list (build_tree_list (NULL_TREE,
|
||
objc_protocol_template),
|
||
build1 (INDIRECT_REF, NULL_TREE,
|
||
build1 (INDIRECT_REF, NULL_TREE,
|
||
NULL_TREE))));
|
||
|
||
refs_expr = build_unary_op (ADDR_EXPR, refs_decl, 0);
|
||
TREE_TYPE (refs_expr) = cast_type2;
|
||
}
|
||
else
|
||
refs_expr = build_int_2 (0, 0);
|
||
|
||
/* UOBJC_INSTANCE_METHODS_decl/UOBJC_CLASS_METHODS_decl are set
|
||
by generate_method_descriptors, which is called above. */
|
||
initlist = build_protocol_initializer (TREE_TYPE (decl),
|
||
protocol_name_expr, refs_expr,
|
||
UOBJC_INSTANCE_METHODS_decl,
|
||
UOBJC_CLASS_METHODS_decl);
|
||
finish_decl (decl, initlist, NULL_TREE);
|
||
|
||
/* Mark the decl as used to avoid "defined but not used" warning. */
|
||
TREE_USED (decl) = 1;
|
||
}
|
||
}
|
||
|
||
static tree
|
||
build_protocol_initializer (type, protocol_name, protocol_list,
|
||
instance_methods, class_methods)
|
||
tree type;
|
||
tree protocol_name;
|
||
tree protocol_list;
|
||
tree instance_methods;
|
||
tree class_methods;
|
||
{
|
||
tree initlist = NULL_TREE, expr;
|
||
static tree cast_type = 0;
|
||
|
||
if (!cast_type)
|
||
cast_type
|
||
= groktypename
|
||
(build_tree_list
|
||
(build_tree_list (NULL_TREE,
|
||
xref_tag (RECORD_TYPE,
|
||
get_identifier (UTAG_CLASS))),
|
||
build1 (INDIRECT_REF, NULL_TREE, NULL_TREE)));
|
||
|
||
/* Filling the "isa" in with one allows the runtime system to
|
||
detect that the version change...should remove before final release. */
|
||
|
||
expr = build_int_2 (PROTOCOL_VERSION, 0);
|
||
TREE_TYPE (expr) = cast_type;
|
||
initlist = tree_cons (NULL_TREE, expr, initlist);
|
||
initlist = tree_cons (NULL_TREE, protocol_name, initlist);
|
||
initlist = tree_cons (NULL_TREE, protocol_list, initlist);
|
||
|
||
if (!instance_methods)
|
||
initlist = tree_cons (NULL_TREE, build_int_2 (0, 0), initlist);
|
||
else
|
||
{
|
||
expr = build_unary_op (ADDR_EXPR, instance_methods, 0);
|
||
initlist = tree_cons (NULL_TREE, expr, initlist);
|
||
}
|
||
|
||
if (!class_methods)
|
||
initlist = tree_cons (NULL_TREE, build_int_2 (0, 0), initlist);
|
||
else
|
||
{
|
||
expr = build_unary_op (ADDR_EXPR, class_methods, 0);
|
||
initlist = tree_cons (NULL_TREE, expr, initlist);
|
||
}
|
||
|
||
return build_constructor (type, nreverse (initlist));
|
||
}
|
||
|
||
/* struct objc_category {
|
||
char *category_name;
|
||
char *class_name;
|
||
struct objc_method_list *instance_methods;
|
||
struct objc_method_list *class_methods;
|
||
struct objc_protocol_list *protocols;
|
||
}; */
|
||
|
||
static void
|
||
build_category_template ()
|
||
{
|
||
tree decl_specs, field_decl, field_decl_chain;
|
||
|
||
objc_category_template = start_struct (RECORD_TYPE,
|
||
get_identifier (UTAG_CATEGORY));
|
||
/* char *category_name; */
|
||
|
||
decl_specs = build_tree_list (NULL_TREE, ridpointers[(int) RID_CHAR]);
|
||
field_decl
|
||
= build1 (INDIRECT_REF, NULL_TREE, get_identifier ("category_name"));
|
||
field_decl
|
||
= grokfield (input_filename, lineno, field_decl, decl_specs, NULL_TREE);
|
||
field_decl_chain = field_decl;
|
||
|
||
/* char *class_name; */
|
||
|
||
decl_specs = build_tree_list (NULL_TREE, ridpointers[(int) RID_CHAR]);
|
||
field_decl = build1 (INDIRECT_REF, NULL_TREE, get_identifier ("class_name"));
|
||
field_decl
|
||
= grokfield (input_filename, lineno, field_decl, decl_specs, NULL_TREE);
|
||
chainon (field_decl_chain, field_decl);
|
||
|
||
/* struct objc_method_list *instance_methods; */
|
||
|
||
decl_specs = build_tree_list (NULL_TREE,
|
||
xref_tag (RECORD_TYPE,
|
||
get_identifier (UTAG_METHOD_LIST)));
|
||
field_decl
|
||
= build1 (INDIRECT_REF, NULL_TREE, get_identifier ("instance_methods"));
|
||
field_decl
|
||
= grokfield (input_filename, lineno, field_decl, decl_specs, NULL_TREE);
|
||
chainon (field_decl_chain, field_decl);
|
||
|
||
/* struct objc_method_list *class_methods; */
|
||
|
||
decl_specs = build_tree_list (NULL_TREE,
|
||
xref_tag (RECORD_TYPE,
|
||
get_identifier (UTAG_METHOD_LIST)));
|
||
field_decl
|
||
= build1 (INDIRECT_REF, NULL_TREE, get_identifier ("class_methods"));
|
||
field_decl
|
||
= grokfield (input_filename, lineno, field_decl, decl_specs, NULL_TREE);
|
||
chainon (field_decl_chain, field_decl);
|
||
|
||
/* struct objc_protocol **protocol_list; */
|
||
|
||
decl_specs = build_tree_list (NULL_TREE,
|
||
xref_tag (RECORD_TYPE,
|
||
get_identifier (UTAG_PROTOCOL)));
|
||
field_decl
|
||
= build1 (INDIRECT_REF, NULL_TREE, get_identifier ("protocol_list"));
|
||
field_decl = build1 (INDIRECT_REF, NULL_TREE, field_decl);
|
||
field_decl
|
||
= grokfield (input_filename, lineno, field_decl, decl_specs, NULL_TREE);
|
||
chainon (field_decl_chain, field_decl);
|
||
|
||
finish_struct (objc_category_template, field_decl_chain, NULL_TREE);
|
||
}
|
||
|
||
/* struct objc_selector {
|
||
void *sel_id;
|
||
char *sel_type;
|
||
}; */
|
||
|
||
static void
|
||
build_selector_template ()
|
||
{
|
||
|
||
tree decl_specs, field_decl, field_decl_chain;
|
||
|
||
objc_selector_template
|
||
= start_struct (RECORD_TYPE, get_identifier (UTAG_SELECTOR));
|
||
|
||
/* void *sel_id; */
|
||
|
||
decl_specs = build_tree_list (NULL_TREE, ridpointers[(int) RID_VOID]);
|
||
field_decl = build1 (INDIRECT_REF, NULL_TREE, get_identifier ("sel_id"));
|
||
field_decl
|
||
= grokfield (input_filename, lineno, field_decl, decl_specs, NULL_TREE);
|
||
field_decl_chain = field_decl;
|
||
|
||
/* char *sel_type; */
|
||
|
||
decl_specs = build_tree_list (NULL_TREE, ridpointers[(int) RID_CHAR]);
|
||
field_decl = build1 (INDIRECT_REF, NULL_TREE, get_identifier ("sel_type"));
|
||
field_decl
|
||
= grokfield (input_filename, lineno, field_decl, decl_specs, NULL_TREE);
|
||
chainon (field_decl_chain, field_decl);
|
||
|
||
finish_struct (objc_selector_template, field_decl_chain, NULL_TREE);
|
||
}
|
||
|
||
/* struct objc_class {
|
||
struct objc_class *isa;
|
||
struct objc_class *super_class;
|
||
char *name;
|
||
long version;
|
||
long info;
|
||
long instance_size;
|
||
struct objc_ivar_list *ivars;
|
||
struct objc_method_list *methods;
|
||
if (flag_next_runtime)
|
||
struct objc_cache *cache;
|
||
else {
|
||
struct sarray *dtable;
|
||
struct objc_class *subclass_list;
|
||
struct objc_class *sibling_class;
|
||
}
|
||
struct objc_protocol_list *protocols;
|
||
}; */
|
||
|
||
static void
|
||
build_class_template ()
|
||
{
|
||
tree decl_specs, field_decl, field_decl_chain;
|
||
|
||
objc_class_template
|
||
= start_struct (RECORD_TYPE, get_identifier (UTAG_CLASS));
|
||
|
||
/* struct objc_class *isa; */
|
||
|
||
decl_specs = build_tree_list (NULL_TREE, objc_class_template);
|
||
field_decl = build1 (INDIRECT_REF, NULL_TREE, get_identifier ("isa"));
|
||
field_decl
|
||
= grokfield (input_filename, lineno, field_decl, decl_specs, NULL_TREE);
|
||
field_decl_chain = field_decl;
|
||
|
||
/* struct objc_class *super_class; */
|
||
|
||
decl_specs = build_tree_list (NULL_TREE, objc_class_template);
|
||
field_decl
|
||
= build1 (INDIRECT_REF, NULL_TREE, get_identifier ("super_class"));
|
||
field_decl
|
||
= grokfield (input_filename, lineno, field_decl, decl_specs, NULL_TREE);
|
||
chainon (field_decl_chain, field_decl);
|
||
|
||
/* char *name; */
|
||
|
||
decl_specs = build_tree_list (NULL_TREE, ridpointers[(int) RID_CHAR]);
|
||
field_decl = build1 (INDIRECT_REF, NULL_TREE, get_identifier ("name"));
|
||
field_decl
|
||
= grokfield (input_filename, lineno, field_decl, decl_specs, NULL_TREE);
|
||
chainon (field_decl_chain, field_decl);
|
||
|
||
/* long version; */
|
||
|
||
decl_specs = build_tree_list (NULL_TREE, ridpointers[(int) RID_LONG]);
|
||
field_decl = get_identifier ("version");
|
||
field_decl
|
||
= grokfield (input_filename, lineno, field_decl, decl_specs, NULL_TREE);
|
||
chainon (field_decl_chain, field_decl);
|
||
|
||
/* long info; */
|
||
|
||
decl_specs = build_tree_list (NULL_TREE, ridpointers[(int) RID_LONG]);
|
||
field_decl = get_identifier ("info");
|
||
field_decl
|
||
= grokfield (input_filename, lineno, field_decl, decl_specs, NULL_TREE);
|
||
chainon (field_decl_chain, field_decl);
|
||
|
||
/* long instance_size; */
|
||
|
||
decl_specs = build_tree_list (NULL_TREE, ridpointers[(int) RID_LONG]);
|
||
field_decl = get_identifier ("instance_size");
|
||
field_decl
|
||
= grokfield (input_filename, lineno, field_decl, decl_specs, NULL_TREE);
|
||
chainon (field_decl_chain, field_decl);
|
||
|
||
/* struct objc_ivar_list *ivars; */
|
||
|
||
decl_specs = build_tree_list (NULL_TREE,
|
||
xref_tag (RECORD_TYPE,
|
||
get_identifier (UTAG_IVAR_LIST)));
|
||
field_decl = build1 (INDIRECT_REF, NULL_TREE, get_identifier ("ivars"));
|
||
field_decl
|
||
= grokfield (input_filename, lineno, field_decl, decl_specs, NULL_TREE);
|
||
chainon (field_decl_chain, field_decl);
|
||
|
||
/* struct objc_method_list *methods; */
|
||
|
||
decl_specs = build_tree_list (NULL_TREE,
|
||
xref_tag (RECORD_TYPE,
|
||
get_identifier (UTAG_METHOD_LIST)));
|
||
field_decl = build1 (INDIRECT_REF, NULL_TREE, get_identifier ("methods"));
|
||
field_decl
|
||
= grokfield (input_filename, lineno, field_decl, decl_specs, NULL_TREE);
|
||
chainon (field_decl_chain, field_decl);
|
||
|
||
if (flag_next_runtime)
|
||
{
|
||
/* struct objc_cache *cache; */
|
||
|
||
decl_specs = build_tree_list (NULL_TREE,
|
||
xref_tag (RECORD_TYPE,
|
||
get_identifier ("objc_cache")));
|
||
field_decl = build1 (INDIRECT_REF, NULL_TREE, get_identifier ("cache"));
|
||
field_decl = grokfield (input_filename, lineno, field_decl,
|
||
decl_specs, NULL_TREE);
|
||
chainon (field_decl_chain, field_decl);
|
||
}
|
||
else
|
||
{
|
||
/* struct sarray *dtable; */
|
||
|
||
decl_specs = build_tree_list (NULL_TREE,
|
||
xref_tag (RECORD_TYPE,
|
||
get_identifier ("sarray")));
|
||
field_decl = build1 (INDIRECT_REF, NULL_TREE, get_identifier ("dtable"));
|
||
field_decl = grokfield (input_filename, lineno, field_decl,
|
||
decl_specs, NULL_TREE);
|
||
chainon (field_decl_chain, field_decl);
|
||
|
||
/* struct objc_class *subclass_list; */
|
||
|
||
decl_specs = build_tree_list (NULL_TREE, objc_class_template);
|
||
field_decl
|
||
= build1 (INDIRECT_REF, NULL_TREE, get_identifier ("subclass_list"));
|
||
field_decl = grokfield (input_filename, lineno, field_decl,
|
||
decl_specs, NULL_TREE);
|
||
chainon (field_decl_chain, field_decl);
|
||
|
||
/* struct objc_class *sibling_class; */
|
||
|
||
decl_specs = build_tree_list (NULL_TREE, objc_class_template);
|
||
field_decl
|
||
= build1 (INDIRECT_REF, NULL_TREE, get_identifier ("sibling_class"));
|
||
field_decl = grokfield (input_filename, lineno, field_decl,
|
||
decl_specs, NULL_TREE);
|
||
chainon (field_decl_chain, field_decl);
|
||
}
|
||
|
||
/* struct objc_protocol **protocol_list; */
|
||
|
||
decl_specs = build_tree_list (NULL_TREE,
|
||
xref_tag (RECORD_TYPE,
|
||
get_identifier (UTAG_PROTOCOL)));
|
||
field_decl
|
||
= build1 (INDIRECT_REF, NULL_TREE, get_identifier ("protocol_list"));
|
||
field_decl
|
||
= build1 (INDIRECT_REF, NULL_TREE, field_decl);
|
||
field_decl = grokfield (input_filename, lineno, field_decl,
|
||
decl_specs, NULL_TREE);
|
||
chainon (field_decl_chain, field_decl);
|
||
|
||
|
||
finish_struct (objc_class_template, field_decl_chain, NULL_TREE);
|
||
}
|
||
|
||
/* Generate appropriate forward declarations for an implementation. */
|
||
|
||
static void
|
||
synth_forward_declarations ()
|
||
{
|
||
tree sc_spec, decl_specs, an_id;
|
||
|
||
/* extern struct objc_class _OBJC_CLASS_<my_name>; */
|
||
|
||
an_id = synth_id_with_class_suffix ("_OBJC_CLASS", implementation_context);
|
||
|
||
sc_spec = build_tree_list (NULL_TREE, ridpointers[(int) RID_EXTERN]);
|
||
decl_specs = tree_cons (NULL_TREE, objc_class_template, sc_spec);
|
||
UOBJC_CLASS_decl = define_decl (an_id, decl_specs);
|
||
TREE_USED (UOBJC_CLASS_decl) = 1;
|
||
DECL_ARTIFICIAL (UOBJC_CLASS_decl) = 1;
|
||
|
||
/* extern struct objc_class _OBJC_METACLASS_<my_name>; */
|
||
|
||
an_id = synth_id_with_class_suffix ("_OBJC_METACLASS",
|
||
implementation_context);
|
||
|
||
UOBJC_METACLASS_decl = define_decl (an_id, decl_specs);
|
||
TREE_USED (UOBJC_METACLASS_decl) = 1;
|
||
DECL_ARTIFICIAL(UOBJC_METACLASS_decl) = 1;
|
||
|
||
/* Pre-build the following entities - for speed/convenience. */
|
||
|
||
an_id = get_identifier ("super_class");
|
||
ucls_super_ref = build_component_ref (UOBJC_CLASS_decl, an_id);
|
||
uucls_super_ref = build_component_ref (UOBJC_METACLASS_decl, an_id);
|
||
}
|
||
|
||
static void
|
||
error_with_ivar (message, decl, rawdecl)
|
||
char *message;
|
||
tree decl;
|
||
tree rawdecl;
|
||
{
|
||
count_error (0);
|
||
|
||
report_error_function (DECL_SOURCE_FILE (decl));
|
||
|
||
fprintf (stderr, "%s:%d: ",
|
||
DECL_SOURCE_FILE (decl), DECL_SOURCE_LINE (decl));
|
||
bzero (errbuf, BUFSIZE);
|
||
fprintf (stderr, "%s `%s'\n", message, gen_declaration (rawdecl, errbuf));
|
||
}
|
||
|
||
#define USERTYPE(t) \
|
||
(TREE_CODE (t) == RECORD_TYPE || TREE_CODE (t) == UNION_TYPE \
|
||
|| TREE_CODE (t) == ENUMERAL_TYPE)
|
||
|
||
static void
|
||
check_ivars (inter, imp)
|
||
tree inter;
|
||
tree imp;
|
||
{
|
||
tree intdecls = CLASS_IVARS (inter);
|
||
tree impdecls = CLASS_IVARS (imp);
|
||
tree rawintdecls = CLASS_RAW_IVARS (inter);
|
||
tree rawimpdecls = CLASS_RAW_IVARS (imp);
|
||
|
||
while (1)
|
||
{
|
||
tree t1, t2;
|
||
|
||
if (intdecls == 0 && impdecls == 0)
|
||
break;
|
||
if (intdecls == 0 || impdecls == 0)
|
||
{
|
||
error ("inconsistent instance variable specification");
|
||
break;
|
||
}
|
||
|
||
t1 = TREE_TYPE (intdecls); t2 = TREE_TYPE (impdecls);
|
||
|
||
if (!comptypes (t1, t2))
|
||
{
|
||
if (DECL_NAME (intdecls) == DECL_NAME (impdecls))
|
||
{
|
||
error_with_ivar ("conflicting instance variable type",
|
||
impdecls, rawimpdecls);
|
||
error_with_ivar ("previous declaration of",
|
||
intdecls, rawintdecls);
|
||
}
|
||
else /* both the type and the name don't match */
|
||
{
|
||
error ("inconsistent instance variable specification");
|
||
break;
|
||
}
|
||
}
|
||
|
||
else if (DECL_NAME (intdecls) != DECL_NAME (impdecls))
|
||
{
|
||
error_with_ivar ("conflicting instance variable name",
|
||
impdecls, rawimpdecls);
|
||
error_with_ivar ("previous declaration of",
|
||
intdecls, rawintdecls);
|
||
}
|
||
|
||
intdecls = TREE_CHAIN (intdecls);
|
||
impdecls = TREE_CHAIN (impdecls);
|
||
rawintdecls = TREE_CHAIN (rawintdecls);
|
||
rawimpdecls = TREE_CHAIN (rawimpdecls);
|
||
}
|
||
}
|
||
|
||
/* Set super_type to the data type node for struct objc_super *,
|
||
first defining struct objc_super itself.
|
||
This needs to be done just once per compilation. */
|
||
|
||
static tree
|
||
build_super_template ()
|
||
{
|
||
tree record, decl_specs, field_decl, field_decl_chain;
|
||
|
||
record = start_struct (RECORD_TYPE, get_identifier (UTAG_SUPER));
|
||
|
||
/* struct objc_object *self; */
|
||
|
||
decl_specs = build_tree_list (NULL_TREE, objc_object_reference);
|
||
field_decl = get_identifier ("self");
|
||
field_decl = build1 (INDIRECT_REF, NULL_TREE, field_decl);
|
||
field_decl = grokfield (input_filename, lineno,
|
||
field_decl, decl_specs, NULL_TREE);
|
||
field_decl_chain = field_decl;
|
||
|
||
/* struct objc_class *class; */
|
||
|
||
decl_specs = get_identifier (UTAG_CLASS);
|
||
decl_specs = build_tree_list (NULL_TREE, xref_tag (RECORD_TYPE, decl_specs));
|
||
field_decl = build1 (INDIRECT_REF, NULL_TREE, get_identifier ("class"));
|
||
|
||
field_decl = grokfield (input_filename, lineno,
|
||
field_decl, decl_specs, NULL_TREE);
|
||
chainon (field_decl_chain, field_decl);
|
||
|
||
finish_struct (record, field_decl_chain, NULL_TREE);
|
||
|
||
/* `struct objc_super *' */
|
||
super_type = groktypename (build_tree_list (build_tree_list (NULL_TREE,
|
||
record),
|
||
build1 (INDIRECT_REF,
|
||
NULL_TREE, NULL_TREE)));
|
||
return record;
|
||
}
|
||
|
||
/* struct objc_ivar {
|
||
char *ivar_name;
|
||
char *ivar_type;
|
||
int ivar_offset;
|
||
}; */
|
||
|
||
static tree
|
||
build_ivar_template ()
|
||
{
|
||
tree objc_ivar_id, objc_ivar_record;
|
||
tree decl_specs, field_decl, field_decl_chain;
|
||
|
||
objc_ivar_id = get_identifier (UTAG_IVAR);
|
||
objc_ivar_record = start_struct (RECORD_TYPE, objc_ivar_id);
|
||
|
||
/* char *ivar_name; */
|
||
|
||
decl_specs = build_tree_list (NULL_TREE, ridpointers[(int) RID_CHAR]);
|
||
field_decl = build1 (INDIRECT_REF, NULL_TREE, get_identifier ("ivar_name"));
|
||
|
||
field_decl = grokfield (input_filename, lineno, field_decl,
|
||
decl_specs, NULL_TREE);
|
||
field_decl_chain = field_decl;
|
||
|
||
/* char *ivar_type; */
|
||
|
||
decl_specs = build_tree_list (NULL_TREE, ridpointers[(int) RID_CHAR]);
|
||
field_decl = build1 (INDIRECT_REF, NULL_TREE, get_identifier ("ivar_type"));
|
||
|
||
field_decl = grokfield (input_filename, lineno, field_decl,
|
||
decl_specs, NULL_TREE);
|
||
chainon (field_decl_chain, field_decl);
|
||
|
||
/* int ivar_offset; */
|
||
|
||
decl_specs = build_tree_list (NULL_TREE, ridpointers[(int) RID_INT]);
|
||
field_decl = get_identifier ("ivar_offset");
|
||
|
||
field_decl = grokfield (input_filename, lineno, field_decl,
|
||
decl_specs, NULL_TREE);
|
||
chainon (field_decl_chain, field_decl);
|
||
|
||
finish_struct (objc_ivar_record, field_decl_chain, NULL_TREE);
|
||
|
||
return objc_ivar_record;
|
||
}
|
||
|
||
/* struct {
|
||
int ivar_count;
|
||
struct objc_ivar ivar_list[ivar_count];
|
||
}; */
|
||
|
||
static tree
|
||
build_ivar_list_template (list_type, size)
|
||
tree list_type;
|
||
int size;
|
||
{
|
||
tree objc_ivar_list_record;
|
||
tree decl_specs, field_decl, field_decl_chain;
|
||
|
||
objc_ivar_list_record = start_struct (RECORD_TYPE, NULL_TREE);
|
||
|
||
/* int ivar_count; */
|
||
|
||
decl_specs = build_tree_list (NULL_TREE, ridpointers[(int) RID_INT]);
|
||
field_decl = get_identifier ("ivar_count");
|
||
|
||
field_decl = grokfield (input_filename, lineno, field_decl,
|
||
decl_specs, NULL_TREE);
|
||
field_decl_chain = field_decl;
|
||
|
||
/* struct objc_ivar ivar_list[]; */
|
||
|
||
decl_specs = build_tree_list (NULL_TREE, list_type);
|
||
field_decl = build_nt (ARRAY_REF, get_identifier ("ivar_list"),
|
||
build_int_2 (size, 0));
|
||
|
||
field_decl = grokfield (input_filename, lineno,
|
||
field_decl, decl_specs, NULL_TREE);
|
||
chainon (field_decl_chain, field_decl);
|
||
|
||
finish_struct (objc_ivar_list_record, field_decl_chain, NULL_TREE);
|
||
|
||
return objc_ivar_list_record;
|
||
}
|
||
|
||
/* struct {
|
||
int method_next;
|
||
int method_count;
|
||
struct objc_method method_list[method_count];
|
||
}; */
|
||
|
||
static tree
|
||
build_method_list_template (list_type, size)
|
||
tree list_type;
|
||
int size;
|
||
{
|
||
tree objc_ivar_list_record;
|
||
tree decl_specs, field_decl, field_decl_chain;
|
||
|
||
objc_ivar_list_record = start_struct (RECORD_TYPE, NULL_TREE);
|
||
|
||
/* int method_next; */
|
||
|
||
decl_specs
|
||
= build_tree_list
|
||
(NULL_TREE,
|
||
xref_tag (RECORD_TYPE,
|
||
get_identifier (UTAG_METHOD_PROTOTYPE_LIST)));
|
||
field_decl
|
||
= build1 (INDIRECT_REF, NULL_TREE, get_identifier ("method_next"));
|
||
field_decl = grokfield (input_filename, lineno, field_decl,
|
||
decl_specs, NULL_TREE);
|
||
field_decl_chain = field_decl;
|
||
|
||
/* int method_count; */
|
||
|
||
decl_specs = build_tree_list (NULL_TREE, ridpointers[(int) RID_INT]);
|
||
field_decl = get_identifier ("method_count");
|
||
|
||
field_decl = grokfield (input_filename, lineno,
|
||
field_decl, decl_specs, NULL_TREE);
|
||
chainon (field_decl_chain, field_decl);
|
||
|
||
/* struct objc_method method_list[]; */
|
||
|
||
decl_specs = build_tree_list (NULL_TREE, list_type);
|
||
field_decl = build_nt (ARRAY_REF, get_identifier ("method_list"),
|
||
build_int_2 (size, 0));
|
||
|
||
field_decl = grokfield (input_filename, lineno,
|
||
field_decl, decl_specs, NULL_TREE);
|
||
chainon (field_decl_chain, field_decl);
|
||
|
||
finish_struct (objc_ivar_list_record, field_decl_chain, NULL_TREE);
|
||
|
||
return objc_ivar_list_record;
|
||
}
|
||
|
||
static tree
|
||
build_ivar_list_initializer (type, field_decl)
|
||
tree type;
|
||
tree field_decl;
|
||
{
|
||
tree initlist = NULL_TREE;
|
||
|
||
do
|
||
{
|
||
tree ivar = NULL_TREE;
|
||
|
||
/* Set name. */
|
||
if (DECL_NAME (field_decl))
|
||
ivar = tree_cons (NULL_TREE,
|
||
add_objc_string (DECL_NAME (field_decl),
|
||
meth_var_names),
|
||
ivar);
|
||
else
|
||
/* Unnamed bit-field ivar (yuck). */
|
||
ivar = tree_cons (NULL_TREE, build_int_2 (0, 0), ivar);
|
||
|
||
/* Set type. */
|
||
encode_field_decl (field_decl,
|
||
obstack_object_size (&util_obstack),
|
||
OBJC_ENCODE_DONT_INLINE_DEFS);
|
||
|
||
/* Null terminate string. */
|
||
obstack_1grow (&util_obstack, 0);
|
||
ivar
|
||
= tree_cons
|
||
(NULL_TREE,
|
||
add_objc_string (get_identifier (obstack_finish (&util_obstack)),
|
||
meth_var_types),
|
||
ivar);
|
||
obstack_free (&util_obstack, util_firstobj);
|
||
|
||
/* set offset */
|
||
ivar
|
||
= tree_cons
|
||
(NULL_TREE,
|
||
build_int_2 ((TREE_INT_CST_LOW (DECL_FIELD_BITPOS (field_decl))
|
||
/ BITS_PER_UNIT),
|
||
0),
|
||
ivar);
|
||
|
||
initlist = tree_cons (NULL_TREE,
|
||
build_constructor (type, nreverse (ivar)),
|
||
initlist);
|
||
|
||
field_decl = TREE_CHAIN (field_decl);
|
||
}
|
||
while (field_decl);
|
||
|
||
return build_constructor (build_array_type (type, 0), nreverse (initlist));
|
||
}
|
||
|
||
static tree
|
||
generate_ivars_list (type, name, size, list)
|
||
tree type;
|
||
char *name;
|
||
int size;
|
||
tree list;
|
||
{
|
||
tree sc_spec, decl_specs, decl, initlist;
|
||
|
||
sc_spec = tree_cons (NULL_TREE, ridpointers[(int) RID_STATIC], NULL_TREE);
|
||
decl_specs = tree_cons (NULL_TREE, type, sc_spec);
|
||
|
||
decl = start_decl (synth_id_with_class_suffix (name, implementation_context),
|
||
decl_specs, 1, NULL_TREE, NULL_TREE);
|
||
|
||
initlist = build_tree_list (NULL_TREE, build_int_2 (size, 0));
|
||
initlist = tree_cons (NULL_TREE, list, initlist);
|
||
|
||
finish_decl (decl,
|
||
build_constructor (TREE_TYPE (decl), nreverse (initlist)),
|
||
NULL_TREE);
|
||
|
||
return decl;
|
||
}
|
||
|
||
static void
|
||
generate_ivar_lists ()
|
||
{
|
||
tree initlist, ivar_list_template, chain;
|
||
tree cast, variable_length_type;
|
||
int size;
|
||
|
||
generating_instance_variables = 1;
|
||
|
||
if (!objc_ivar_template)
|
||
objc_ivar_template = build_ivar_template ();
|
||
|
||
cast
|
||
= build_tree_list
|
||
(build_tree_list (NULL_TREE, xref_tag (RECORD_TYPE,
|
||
get_identifier (UTAG_IVAR_LIST))),
|
||
NULL_TREE);
|
||
variable_length_type = groktypename (cast);
|
||
|
||
/* Only generate class variables for the root of the inheritance
|
||
hierarchy since these will be the same for every class. */
|
||
|
||
if (CLASS_SUPER_NAME (implementation_template) == NULL_TREE
|
||
&& (chain = TYPE_FIELDS (objc_class_template)))
|
||
{
|
||
size = list_length (chain);
|
||
|
||
ivar_list_template = build_ivar_list_template (objc_ivar_template, size);
|
||
initlist = build_ivar_list_initializer (objc_ivar_template, chain);
|
||
|
||
UOBJC_CLASS_VARIABLES_decl
|
||
= generate_ivars_list (ivar_list_template, "_OBJC_CLASS_VARIABLES",
|
||
size, initlist);
|
||
TREE_TYPE (UOBJC_CLASS_VARIABLES_decl) = variable_length_type;
|
||
}
|
||
else
|
||
UOBJC_CLASS_VARIABLES_decl = 0;
|
||
|
||
chain = CLASS_IVARS (implementation_template);
|
||
if (chain)
|
||
{
|
||
size = list_length (chain);
|
||
ivar_list_template = build_ivar_list_template (objc_ivar_template, size);
|
||
initlist = build_ivar_list_initializer (objc_ivar_template, chain);
|
||
|
||
UOBJC_INSTANCE_VARIABLES_decl
|
||
= generate_ivars_list (ivar_list_template, "_OBJC_INSTANCE_VARIABLES",
|
||
size, initlist);
|
||
TREE_TYPE (UOBJC_INSTANCE_VARIABLES_decl) = variable_length_type;
|
||
}
|
||
else
|
||
UOBJC_INSTANCE_VARIABLES_decl = 0;
|
||
|
||
generating_instance_variables = 0;
|
||
}
|
||
|
||
static tree
|
||
build_dispatch_table_initializer (type, entries)
|
||
tree type;
|
||
tree entries;
|
||
{
|
||
tree initlist = NULL_TREE;
|
||
|
||
do
|
||
{
|
||
tree elemlist = NULL_TREE;
|
||
|
||
elemlist = tree_cons (NULL_TREE,
|
||
build_selector (METHOD_SEL_NAME (entries)),
|
||
NULL_TREE);
|
||
|
||
elemlist = tree_cons (NULL_TREE,
|
||
add_objc_string (METHOD_ENCODING (entries),
|
||
meth_var_types),
|
||
elemlist);
|
||
|
||
elemlist = tree_cons (NULL_TREE,
|
||
build_unary_op (ADDR_EXPR,
|
||
METHOD_DEFINITION (entries), 1),
|
||
elemlist);
|
||
|
||
initlist = tree_cons (NULL_TREE,
|
||
build_constructor (type, nreverse (elemlist)),
|
||
initlist);
|
||
|
||
entries = TREE_CHAIN (entries);
|
||
}
|
||
while (entries);
|
||
|
||
return build_constructor (build_array_type (type, 0), nreverse (initlist));
|
||
}
|
||
|
||
/* To accomplish method prototyping without generating all kinds of
|
||
inane warnings, the definition of the dispatch table entries were
|
||
changed from:
|
||
|
||
struct objc_method { SEL _cmd; ...; id (*_imp)(); };
|
||
to:
|
||
struct objc_method { SEL _cmd; ...; void *_imp; }; */
|
||
|
||
static tree
|
||
build_method_template ()
|
||
{
|
||
tree _SLT_record;
|
||
tree decl_specs, field_decl, field_decl_chain;
|
||
|
||
_SLT_record = start_struct (RECORD_TYPE, get_identifier (UTAG_METHOD));
|
||
|
||
#ifdef OBJC_INT_SELECTORS
|
||
/* unsigned int _cmd; */
|
||
decl_specs = tree_cons (NULL_TREE, ridpointers[(int) RID_UNSIGNED],
|
||
NULL_TREE);
|
||
decl_specs = tree_cons (NULL_TREE, ridpointers[(int) RID_INT], decl_specs);
|
||
field_decl = get_identifier ("_cmd");
|
||
#else /* not OBJC_INT_SELECTORS */
|
||
/* struct objc_selector *_cmd; */
|
||
decl_specs = tree_cons (NULL_TREE,
|
||
xref_tag (RECORD_TYPE,
|
||
get_identifier (TAG_SELECTOR)),
|
||
NULL_TREE);
|
||
field_decl = build1 (INDIRECT_REF, NULL_TREE, get_identifier ("_cmd"));
|
||
#endif /* not OBJC_INT_SELECTORS */
|
||
|
||
field_decl = grokfield (input_filename, lineno, field_decl,
|
||
decl_specs, NULL_TREE);
|
||
field_decl_chain = field_decl;
|
||
|
||
decl_specs = tree_cons (NULL_TREE, ridpointers[(int) RID_CHAR], NULL_TREE);
|
||
field_decl = build1 (INDIRECT_REF, NULL_TREE,
|
||
get_identifier ("method_types"));
|
||
field_decl = grokfield (input_filename, lineno, field_decl,
|
||
decl_specs, NULL_TREE);
|
||
chainon (field_decl_chain, field_decl);
|
||
|
||
/* void *_imp; */
|
||
|
||
decl_specs = tree_cons (NULL_TREE, ridpointers[(int) RID_VOID], NULL_TREE);
|
||
field_decl = build1 (INDIRECT_REF, NULL_TREE, get_identifier ("_imp"));
|
||
field_decl = grokfield (input_filename, lineno, field_decl,
|
||
decl_specs, NULL_TREE);
|
||
chainon (field_decl_chain, field_decl);
|
||
|
||
finish_struct (_SLT_record, field_decl_chain, NULL_TREE);
|
||
|
||
return _SLT_record;
|
||
}
|
||
|
||
|
||
static tree
|
||
generate_dispatch_table (type, name, size, list)
|
||
tree type;
|
||
char *name;
|
||
int size;
|
||
tree list;
|
||
{
|
||
tree sc_spec, decl_specs, decl, initlist;
|
||
|
||
sc_spec = tree_cons (NULL_TREE, ridpointers[(int) RID_STATIC], NULL_TREE);
|
||
decl_specs = tree_cons (NULL_TREE, type, sc_spec);
|
||
|
||
decl = start_decl (synth_id_with_class_suffix (name, implementation_context),
|
||
decl_specs, 1, NULL_TREE, NULL_TREE);
|
||
|
||
initlist = build_tree_list (NULL_TREE, build_int_2 (0, 0));
|
||
initlist = tree_cons (NULL_TREE, build_int_2 (size, 0), initlist);
|
||
initlist = tree_cons (NULL_TREE, list, initlist);
|
||
|
||
finish_decl (decl,
|
||
build_constructor (TREE_TYPE (decl), nreverse (initlist)),
|
||
NULL_TREE);
|
||
|
||
return decl;
|
||
}
|
||
|
||
static void
|
||
generate_dispatch_tables ()
|
||
{
|
||
tree initlist, chain, method_list_template;
|
||
tree cast, variable_length_type;
|
||
int size;
|
||
|
||
if (!objc_method_template)
|
||
objc_method_template = build_method_template ();
|
||
|
||
cast
|
||
= build_tree_list
|
||
(build_tree_list (NULL_TREE,
|
||
xref_tag (RECORD_TYPE,
|
||
get_identifier (UTAG_METHOD_LIST))),
|
||
NULL_TREE);
|
||
|
||
variable_length_type = groktypename (cast);
|
||
|
||
chain = CLASS_CLS_METHODS (implementation_context);
|
||
if (chain)
|
||
{
|
||
size = list_length (chain);
|
||
|
||
method_list_template
|
||
= build_method_list_template (objc_method_template, size);
|
||
initlist
|
||
= build_dispatch_table_initializer (objc_method_template, chain);
|
||
|
||
UOBJC_CLASS_METHODS_decl
|
||
= generate_dispatch_table (method_list_template,
|
||
((TREE_CODE (implementation_context)
|
||
== CLASS_IMPLEMENTATION_TYPE)
|
||
? "_OBJC_CLASS_METHODS"
|
||
: "_OBJC_CATEGORY_CLASS_METHODS"),
|
||
size, initlist);
|
||
TREE_TYPE (UOBJC_CLASS_METHODS_decl) = variable_length_type;
|
||
}
|
||
else
|
||
UOBJC_CLASS_METHODS_decl = 0;
|
||
|
||
chain = CLASS_NST_METHODS (implementation_context);
|
||
if (chain)
|
||
{
|
||
size = list_length (chain);
|
||
|
||
method_list_template
|
||
= build_method_list_template (objc_method_template, size);
|
||
initlist
|
||
= build_dispatch_table_initializer (objc_method_template, chain);
|
||
|
||
if (TREE_CODE (implementation_context) == CLASS_IMPLEMENTATION_TYPE)
|
||
UOBJC_INSTANCE_METHODS_decl
|
||
= generate_dispatch_table (method_list_template,
|
||
"_OBJC_INSTANCE_METHODS",
|
||
size, initlist);
|
||
else
|
||
/* We have a category. */
|
||
UOBJC_INSTANCE_METHODS_decl
|
||
= generate_dispatch_table (method_list_template,
|
||
"_OBJC_CATEGORY_INSTANCE_METHODS",
|
||
size, initlist);
|
||
TREE_TYPE (UOBJC_INSTANCE_METHODS_decl) = variable_length_type;
|
||
}
|
||
else
|
||
UOBJC_INSTANCE_METHODS_decl = 0;
|
||
}
|
||
|
||
static tree
|
||
generate_protocol_list (i_or_p)
|
||
tree i_or_p;
|
||
{
|
||
static tree cast_type = 0;
|
||
tree initlist, decl_specs, sc_spec;
|
||
tree refs_decl, expr_decl, lproto, e, plist;
|
||
int size = 0;
|
||
|
||
if (TREE_CODE (i_or_p) == CLASS_INTERFACE_TYPE
|
||
|| TREE_CODE (i_or_p) == CATEGORY_INTERFACE_TYPE)
|
||
plist = CLASS_PROTOCOL_LIST (i_or_p);
|
||
else if (TREE_CODE (i_or_p) == PROTOCOL_INTERFACE_TYPE)
|
||
plist = PROTOCOL_LIST (i_or_p);
|
||
else
|
||
abort ();
|
||
|
||
if (!cast_type)
|
||
cast_type
|
||
= groktypename
|
||
(build_tree_list
|
||
(build_tree_list (NULL_TREE,
|
||
xref_tag (RECORD_TYPE,
|
||
get_identifier (UTAG_PROTOCOL))),
|
||
build1 (INDIRECT_REF, NULL_TREE, NULL_TREE)));
|
||
|
||
/* Compute size. */
|
||
for (lproto = plist; lproto; lproto = TREE_CHAIN (lproto))
|
||
if (TREE_CODE (TREE_VALUE (lproto)) == PROTOCOL_INTERFACE_TYPE
|
||
&& PROTOCOL_FORWARD_DECL (TREE_VALUE (lproto)))
|
||
size++;
|
||
|
||
/* Build initializer. */
|
||
initlist = tree_cons (NULL_TREE, build_int_2 (0, 0), NULL_TREE);
|
||
|
||
e = build_int_2 (size, 0);
|
||
TREE_TYPE (e) = cast_type;
|
||
initlist = tree_cons (NULL_TREE, e, initlist);
|
||
|
||
for (lproto = plist; lproto; lproto = TREE_CHAIN (lproto))
|
||
{
|
||
tree pval = TREE_VALUE (lproto);
|
||
|
||
if (TREE_CODE (pval) == PROTOCOL_INTERFACE_TYPE
|
||
&& PROTOCOL_FORWARD_DECL (pval))
|
||
{
|
||
e = build_unary_op (ADDR_EXPR, PROTOCOL_FORWARD_DECL (pval), 0);
|
||
initlist = tree_cons (NULL_TREE, e, initlist);
|
||
}
|
||
}
|
||
|
||
/* static struct objc_protocol *refs[n]; */
|
||
|
||
sc_spec = tree_cons (NULL_TREE, ridpointers[(int) RID_STATIC], NULL_TREE);
|
||
decl_specs = tree_cons (NULL_TREE, xref_tag (RECORD_TYPE,
|
||
get_identifier (UTAG_PROTOCOL)),
|
||
sc_spec);
|
||
|
||
if (TREE_CODE (i_or_p) == PROTOCOL_INTERFACE_TYPE)
|
||
expr_decl = build_nt (ARRAY_REF,
|
||
synth_id_with_class_suffix ("_OBJC_PROTOCOL_REFS",
|
||
i_or_p),
|
||
build_int_2 (size + 2, 0));
|
||
else if (TREE_CODE (i_or_p) == CLASS_INTERFACE_TYPE)
|
||
expr_decl = build_nt (ARRAY_REF,
|
||
synth_id_with_class_suffix ("_OBJC_CLASS_PROTOCOLS",
|
||
i_or_p),
|
||
build_int_2 (size + 2, 0));
|
||
else if (TREE_CODE (i_or_p) == CATEGORY_INTERFACE_TYPE)
|
||
expr_decl
|
||
= build_nt (ARRAY_REF,
|
||
synth_id_with_class_suffix ("_OBJC_CATEGORY_PROTOCOLS",
|
||
i_or_p),
|
||
build_int_2 (size + 2, 0));
|
||
|
||
expr_decl = build1 (INDIRECT_REF, NULL_TREE, expr_decl);
|
||
|
||
refs_decl = start_decl (expr_decl, decl_specs, 1, NULL_TREE, NULL_TREE);
|
||
|
||
finish_decl (refs_decl, build_constructor (TREE_TYPE (refs_decl),
|
||
nreverse (initlist)),
|
||
NULL_TREE);
|
||
|
||
return refs_decl;
|
||
}
|
||
|
||
static tree
|
||
build_category_initializer (type, cat_name, class_name,
|
||
instance_methods, class_methods, protocol_list)
|
||
tree type;
|
||
tree cat_name;
|
||
tree class_name;
|
||
tree instance_methods;
|
||
tree class_methods;
|
||
tree protocol_list;
|
||
{
|
||
tree initlist = NULL_TREE, expr;
|
||
|
||
initlist = tree_cons (NULL_TREE, cat_name, initlist);
|
||
initlist = tree_cons (NULL_TREE, class_name, initlist);
|
||
|
||
if (!instance_methods)
|
||
initlist = tree_cons (NULL_TREE, build_int_2 (0, 0), initlist);
|
||
else
|
||
{
|
||
expr = build_unary_op (ADDR_EXPR, instance_methods, 0);
|
||
initlist = tree_cons (NULL_TREE, expr, initlist);
|
||
}
|
||
if (!class_methods)
|
||
initlist = tree_cons (NULL_TREE, build_int_2 (0, 0), initlist);
|
||
else
|
||
{
|
||
expr = build_unary_op (ADDR_EXPR, class_methods, 0);
|
||
initlist = tree_cons (NULL_TREE, expr, initlist);
|
||
}
|
||
|
||
/* protocol_list = */
|
||
if (!protocol_list)
|
||
initlist = tree_cons (NULL_TREE, build_int_2 (0, 0), initlist);
|
||
else
|
||
{
|
||
static tree cast_type2;
|
||
|
||
if (!cast_type2)
|
||
cast_type2
|
||
= groktypename
|
||
(build_tree_list
|
||
(build_tree_list (NULL_TREE,
|
||
xref_tag (RECORD_TYPE,
|
||
get_identifier (UTAG_PROTOCOL))),
|
||
build1 (INDIRECT_REF, NULL_TREE,
|
||
build1 (INDIRECT_REF, NULL_TREE, NULL_TREE))));
|
||
|
||
expr = build_unary_op (ADDR_EXPR, protocol_list, 0);
|
||
TREE_TYPE (expr) = cast_type2;
|
||
initlist = tree_cons (NULL_TREE, expr, initlist);
|
||
}
|
||
|
||
return build_constructor (type, nreverse (initlist));
|
||
}
|
||
|
||
/* struct objc_class {
|
||
struct objc_class *isa;
|
||
struct objc_class *super_class;
|
||
char *name;
|
||
long version;
|
||
long info;
|
||
long instance_size;
|
||
struct objc_ivar_list *ivars;
|
||
struct objc_method_list *methods;
|
||
if (flag_next_runtime)
|
||
struct objc_cache *cache;
|
||
else {
|
||
struct sarray *dtable;
|
||
struct objc_class *subclass_list;
|
||
struct objc_class *sibling_class;
|
||
}
|
||
struct objc_protocol_list *protocols;
|
||
}; */
|
||
|
||
static tree
|
||
build_shared_structure_initializer (type, isa, super, name, size, status,
|
||
dispatch_table, ivar_list, protocol_list)
|
||
tree type;
|
||
tree isa;
|
||
tree super;
|
||
tree name;
|
||
tree size;
|
||
int status;
|
||
tree dispatch_table;
|
||
tree ivar_list;
|
||
tree protocol_list;
|
||
{
|
||
tree initlist = NULL_TREE, expr;
|
||
|
||
/* isa = */
|
||
initlist = tree_cons (NULL_TREE, isa, initlist);
|
||
|
||
/* super_class = */
|
||
initlist = tree_cons (NULL_TREE, super, initlist);
|
||
|
||
/* name = */
|
||
initlist = tree_cons (NULL_TREE, default_conversion (name), initlist);
|
||
|
||
/* version = */
|
||
initlist = tree_cons (NULL_TREE, build_int_2 (0, 0), initlist);
|
||
|
||
/* info = */
|
||
initlist = tree_cons (NULL_TREE, build_int_2 (status, 0), initlist);
|
||
|
||
/* instance_size = */
|
||
initlist = tree_cons (NULL_TREE, size, initlist);
|
||
|
||
/* objc_ivar_list = */
|
||
if (!ivar_list)
|
||
initlist = tree_cons (NULL_TREE, build_int_2 (0, 0), initlist);
|
||
else
|
||
{
|
||
expr = build_unary_op (ADDR_EXPR, ivar_list, 0);
|
||
initlist = tree_cons (NULL_TREE, expr, initlist);
|
||
}
|
||
|
||
/* objc_method_list = */
|
||
if (!dispatch_table)
|
||
initlist = tree_cons (NULL_TREE, build_int_2 (0, 0), initlist);
|
||
else
|
||
{
|
||
expr = build_unary_op (ADDR_EXPR, dispatch_table, 0);
|
||
initlist = tree_cons (NULL_TREE, expr, initlist);
|
||
}
|
||
|
||
if (flag_next_runtime)
|
||
/* method_cache = */
|
||
initlist = tree_cons (NULL_TREE, build_int_2 (0, 0), initlist);
|
||
else
|
||
{
|
||
/* dtable = */
|
||
initlist = tree_cons (NULL_TREE, build_int_2 (0, 0), initlist);
|
||
|
||
/* subclass_list = */
|
||
initlist = tree_cons (NULL_TREE, build_int_2 (0, 0), initlist);
|
||
|
||
/* sibling_class = */
|
||
initlist = tree_cons (NULL_TREE, build_int_2 (0, 0), initlist);
|
||
}
|
||
|
||
/* protocol_list = */
|
||
if (! protocol_list)
|
||
initlist = tree_cons (NULL_TREE, build_int_2 (0, 0), initlist);
|
||
else
|
||
{
|
||
static tree cast_type2;
|
||
|
||
if (!cast_type2)
|
||
cast_type2
|
||
= groktypename
|
||
(build_tree_list
|
||
(build_tree_list (NULL_TREE,
|
||
xref_tag (RECORD_TYPE,
|
||
get_identifier (UTAG_PROTOCOL))),
|
||
build1 (INDIRECT_REF, NULL_TREE,
|
||
build1 (INDIRECT_REF, NULL_TREE, NULL_TREE))));
|
||
|
||
expr = build_unary_op (ADDR_EXPR, protocol_list, 0);
|
||
TREE_TYPE (expr) = cast_type2;
|
||
initlist = tree_cons (NULL_TREE, expr, initlist);
|
||
}
|
||
|
||
return build_constructor (type, nreverse (initlist));
|
||
}
|
||
|
||
/* static struct objc_category _OBJC_CATEGORY_<name> = { ... }; */
|
||
static void
|
||
generate_category (cat)
|
||
tree cat;
|
||
{
|
||
tree sc_spec, decl_specs, decl;
|
||
tree initlist, cat_name_expr, class_name_expr;
|
||
tree protocol_decl, category;
|
||
|
||
add_class_reference (CLASS_NAME (cat));
|
||
cat_name_expr = add_objc_string (CLASS_SUPER_NAME (cat), class_names);
|
||
|
||
class_name_expr = add_objc_string (CLASS_NAME (cat), class_names);
|
||
|
||
category = CLASS_CATEGORY_LIST (implementation_template);
|
||
|
||
/* find the category interface from the class it is associated with */
|
||
while (category)
|
||
{
|
||
if (CLASS_SUPER_NAME (cat) == CLASS_SUPER_NAME (category))
|
||
break;
|
||
category = CLASS_CATEGORY_LIST (category);
|
||
}
|
||
|
||
if (category && CLASS_PROTOCOL_LIST (category))
|
||
{
|
||
generate_protocol_references (CLASS_PROTOCOL_LIST (category));
|
||
protocol_decl = generate_protocol_list (category);
|
||
}
|
||
else
|
||
protocol_decl = 0;
|
||
|
||
sc_spec = tree_cons (NULL_TREE, ridpointers[(int) RID_STATIC], NULL_TREE);
|
||
decl_specs = tree_cons (NULL_TREE, objc_category_template, sc_spec);
|
||
|
||
decl = start_decl (synth_id_with_class_suffix ("_OBJC_CATEGORY",
|
||
implementation_context),
|
||
decl_specs, 1, NULL_TREE, NULL_TREE);
|
||
|
||
initlist = build_category_initializer (TREE_TYPE (decl),
|
||
cat_name_expr, class_name_expr,
|
||
UOBJC_INSTANCE_METHODS_decl,
|
||
UOBJC_CLASS_METHODS_decl,
|
||
protocol_decl);
|
||
|
||
TREE_USED (decl) = 1;
|
||
finish_decl (decl, initlist, NULL_TREE);
|
||
}
|
||
|
||
/* static struct objc_class _OBJC_METACLASS_Foo={ ... };
|
||
static struct objc_class _OBJC_CLASS_Foo={ ... }; */
|
||
|
||
static void
|
||
generate_shared_structures ()
|
||
{
|
||
tree sc_spec, decl_specs, decl;
|
||
tree name_expr, super_expr, root_expr;
|
||
tree my_root_id = NULL_TREE, my_super_id = NULL_TREE;
|
||
tree cast_type, initlist, protocol_decl;
|
||
|
||
my_super_id = CLASS_SUPER_NAME (implementation_template);
|
||
if (my_super_id)
|
||
{
|
||
add_class_reference (my_super_id);
|
||
|
||
/* Compute "my_root_id" - this is required for code generation.
|
||
the "isa" for all meta class structures points to the root of
|
||
the inheritance hierarchy (e.g. "__Object")... */
|
||
my_root_id = my_super_id;
|
||
do
|
||
{
|
||
tree my_root_int = lookup_interface (my_root_id);
|
||
|
||
if (my_root_int && CLASS_SUPER_NAME (my_root_int))
|
||
my_root_id = CLASS_SUPER_NAME (my_root_int);
|
||
else
|
||
break;
|
||
}
|
||
while (1);
|
||
}
|
||
else
|
||
/* No super class. */
|
||
my_root_id = CLASS_NAME (implementation_template);
|
||
|
||
cast_type
|
||
= groktypename (build_tree_list (build_tree_list (NULL_TREE,
|
||
objc_class_template),
|
||
build1 (INDIRECT_REF,
|
||
NULL_TREE, NULL_TREE)));
|
||
|
||
name_expr = add_objc_string (CLASS_NAME (implementation_template),
|
||
class_names);
|
||
|
||
/* Install class `isa' and `super' pointers at runtime. */
|
||
if (my_super_id)
|
||
{
|
||
super_expr = add_objc_string (my_super_id, class_names);
|
||
super_expr = build_c_cast (cast_type, super_expr); /* cast! */
|
||
}
|
||
else
|
||
super_expr = build_int_2 (0, 0);
|
||
|
||
root_expr = add_objc_string (my_root_id, class_names);
|
||
root_expr = build_c_cast (cast_type, root_expr); /* cast! */
|
||
|
||
if (CLASS_PROTOCOL_LIST (implementation_template))
|
||
{
|
||
generate_protocol_references
|
||
(CLASS_PROTOCOL_LIST (implementation_template));
|
||
protocol_decl = generate_protocol_list (implementation_template);
|
||
}
|
||
else
|
||
protocol_decl = 0;
|
||
|
||
/* static struct objc_class _OBJC_METACLASS_Foo = { ... }; */
|
||
|
||
sc_spec = build_tree_list (NULL_TREE, ridpointers[(int) RID_STATIC]);
|
||
decl_specs = tree_cons (NULL_TREE, objc_class_template, sc_spec);
|
||
|
||
decl = start_decl (DECL_NAME (UOBJC_METACLASS_decl), decl_specs, 1,
|
||
NULL_TREE, NULL_TREE);
|
||
|
||
initlist
|
||
= build_shared_structure_initializer
|
||
(TREE_TYPE (decl),
|
||
root_expr, super_expr, name_expr,
|
||
build_int_2 ((TREE_INT_CST_LOW (TYPE_SIZE (objc_class_template))
|
||
/ BITS_PER_UNIT),
|
||
0),
|
||
2 /*CLS_META*/,
|
||
UOBJC_CLASS_METHODS_decl,
|
||
UOBJC_CLASS_VARIABLES_decl,
|
||
protocol_decl);
|
||
|
||
finish_decl (decl, initlist, NULL_TREE);
|
||
|
||
/* static struct objc_class _OBJC_CLASS_Foo={ ... }; */
|
||
|
||
decl = start_decl (DECL_NAME (UOBJC_CLASS_decl), decl_specs, 1,
|
||
NULL_TREE, NULL_TREE);
|
||
|
||
initlist
|
||
= build_shared_structure_initializer
|
||
(TREE_TYPE (decl),
|
||
build_unary_op (ADDR_EXPR, UOBJC_METACLASS_decl, 0),
|
||
super_expr, name_expr,
|
||
build_int_2
|
||
((TREE_INT_CST_LOW
|
||
(TYPE_SIZE (CLASS_STATIC_TEMPLATE (implementation_template)))
|
||
/ BITS_PER_UNIT),
|
||
0),
|
||
1 /*CLS_FACTORY*/,
|
||
UOBJC_INSTANCE_METHODS_decl,
|
||
UOBJC_INSTANCE_VARIABLES_decl,
|
||
protocol_decl);
|
||
|
||
finish_decl (decl, initlist, NULL_TREE);
|
||
}
|
||
|
||
static tree
|
||
synth_id_with_class_suffix (preamble, ctxt)
|
||
char *preamble;
|
||
tree ctxt;
|
||
{
|
||
char *string;
|
||
if (TREE_CODE (ctxt) == CLASS_IMPLEMENTATION_TYPE
|
||
|| TREE_CODE (ctxt) == CLASS_INTERFACE_TYPE)
|
||
{
|
||
char *class_name
|
||
= IDENTIFIER_POINTER (CLASS_NAME (implementation_context));
|
||
string = (char *) alloca (strlen (preamble) + strlen (class_name) + 3);
|
||
sprintf (string, "%s_%s", preamble,
|
||
IDENTIFIER_POINTER (CLASS_NAME (ctxt)));
|
||
}
|
||
else if (TREE_CODE (ctxt) == CATEGORY_IMPLEMENTATION_TYPE
|
||
|| TREE_CODE (ctxt) == CATEGORY_INTERFACE_TYPE)
|
||
{
|
||
/* We have a category. */
|
||
char *class_name
|
||
= IDENTIFIER_POINTER (CLASS_NAME (implementation_context));
|
||
char *class_super_name
|
||
= IDENTIFIER_POINTER (CLASS_SUPER_NAME (implementation_context));
|
||
string = (char *) alloca (strlen (preamble)
|
||
+ strlen (class_name)
|
||
+ strlen (class_super_name)
|
||
+ 3);
|
||
sprintf (string, "%s_%s_%s", preamble, class_name, class_super_name);
|
||
}
|
||
else if (TREE_CODE (ctxt) == PROTOCOL_INTERFACE_TYPE)
|
||
{
|
||
char *protocol_name = IDENTIFIER_POINTER (PROTOCOL_NAME (ctxt));
|
||
string
|
||
= (char *) alloca (strlen (preamble) + strlen (protocol_name) + 3);
|
||
sprintf (string, "%s_%s", preamble, protocol_name);
|
||
}
|
||
return get_identifier (string);
|
||
}
|
||
|
||
static int
|
||
is_objc_type_qualifier (node)
|
||
tree node;
|
||
{
|
||
return (TREE_CODE (node) == IDENTIFIER_NODE
|
||
&& (node == ridpointers [(int) RID_CONST]
|
||
|| node == ridpointers [(int) RID_VOLATILE]
|
||
|| node == ridpointers [(int) RID_IN]
|
||
|| node == ridpointers [(int) RID_OUT]
|
||
|| node == ridpointers [(int) RID_INOUT]
|
||
|| node == ridpointers [(int) RID_BYCOPY]
|
||
|| node == ridpointers [(int) RID_ONEWAY]));
|
||
}
|
||
|
||
/* If type is empty or only type qualifiers are present, add default
|
||
type of id (otherwise grokdeclarator will default to int). */
|
||
|
||
static tree
|
||
adjust_type_for_id_default (type)
|
||
tree type;
|
||
{
|
||
tree declspecs, chain;
|
||
|
||
if (!type)
|
||
return build_tree_list (build_tree_list (NULL_TREE, objc_object_reference),
|
||
build1 (INDIRECT_REF, NULL_TREE, NULL_TREE));
|
||
|
||
declspecs = TREE_PURPOSE (type);
|
||
|
||
/* Determine if a typespec is present. */
|
||
for (chain = declspecs;
|
||
chain;
|
||
chain = TREE_CHAIN (chain))
|
||
{
|
||
if (!is_objc_type_qualifier (TREE_VALUE (chain)))
|
||
return type;
|
||
}
|
||
|
||
return build_tree_list (tree_cons (NULL_TREE, objc_object_reference,
|
||
declspecs),
|
||
build1 (INDIRECT_REF, NULL_TREE, NULL_TREE));
|
||
}
|
||
|
||
/* Usage:
|
||
keyworddecl:
|
||
selector ':' '(' typename ')' identifier
|
||
|
||
Purpose:
|
||
Transform an Objective-C keyword argument into
|
||
the C equivalent parameter declarator.
|
||
|
||
In: key_name, an "identifier_node" (optional).
|
||
arg_type, a "tree_list" (optional).
|
||
arg_name, an "identifier_node".
|
||
|
||
Note: It would be really nice to strongly type the preceding
|
||
arguments in the function prototype; however, then I
|
||
could not use the "accessor" macros defined in "tree.h".
|
||
|
||
Out: an instance of "keyword_decl". */
|
||
|
||
tree
|
||
build_keyword_decl (key_name, arg_type, arg_name)
|
||
tree key_name;
|
||
tree arg_type;
|
||
tree arg_name;
|
||
{
|
||
tree keyword_decl;
|
||
|
||
/* If no type is specified, default to "id". */
|
||
arg_type = adjust_type_for_id_default (arg_type);
|
||
|
||
keyword_decl = make_node (KEYWORD_DECL);
|
||
|
||
TREE_TYPE (keyword_decl) = arg_type;
|
||
KEYWORD_ARG_NAME (keyword_decl) = arg_name;
|
||
KEYWORD_KEY_NAME (keyword_decl) = key_name;
|
||
|
||
return keyword_decl;
|
||
}
|
||
|
||
/* Given a chain of keyword_decl's, synthesize the full keyword selector. */
|
||
|
||
static tree
|
||
build_keyword_selector (selector)
|
||
tree selector;
|
||
{
|
||
int len = 0;
|
||
tree key_chain, key_name;
|
||
char *buf;
|
||
|
||
for (key_chain = selector; key_chain; key_chain = TREE_CHAIN (key_chain))
|
||
{
|
||
if (TREE_CODE (selector) == KEYWORD_DECL)
|
||
key_name = KEYWORD_KEY_NAME (key_chain);
|
||
else if (TREE_CODE (selector) == TREE_LIST)
|
||
key_name = TREE_PURPOSE (key_chain);
|
||
|
||
if (key_name)
|
||
len += IDENTIFIER_LENGTH (key_name) + 1;
|
||
else
|
||
/* Just a ':' arg. */
|
||
len++;
|
||
}
|
||
|
||
buf = (char *)alloca (len + 1);
|
||
bzero (buf, len + 1);
|
||
|
||
for (key_chain = selector; key_chain; key_chain = TREE_CHAIN (key_chain))
|
||
{
|
||
if (TREE_CODE (selector) == KEYWORD_DECL)
|
||
key_name = KEYWORD_KEY_NAME (key_chain);
|
||
else if (TREE_CODE (selector) == TREE_LIST)
|
||
key_name = TREE_PURPOSE (key_chain);
|
||
|
||
if (key_name)
|
||
strcat (buf, IDENTIFIER_POINTER (key_name));
|
||
strcat (buf, ":");
|
||
}
|
||
|
||
return get_identifier (buf);
|
||
}
|
||
|
||
/* Used for declarations and definitions. */
|
||
|
||
tree
|
||
build_method_decl (code, ret_type, selector, add_args)
|
||
enum tree_code code;
|
||
tree ret_type;
|
||
tree selector;
|
||
tree add_args;
|
||
{
|
||
tree method_decl;
|
||
|
||
/* If no type is specified, default to "id". */
|
||
ret_type = adjust_type_for_id_default (ret_type);
|
||
|
||
method_decl = make_node (code);
|
||
TREE_TYPE (method_decl) = ret_type;
|
||
|
||
/* If we have a keyword selector, create an identifier_node that
|
||
represents the full selector name (`:' included)... */
|
||
if (TREE_CODE (selector) == KEYWORD_DECL)
|
||
{
|
||
METHOD_SEL_NAME (method_decl) = build_keyword_selector (selector);
|
||
METHOD_SEL_ARGS (method_decl) = selector;
|
||
METHOD_ADD_ARGS (method_decl) = add_args;
|
||
}
|
||
else
|
||
{
|
||
METHOD_SEL_NAME (method_decl) = selector;
|
||
METHOD_SEL_ARGS (method_decl) = NULL_TREE;
|
||
METHOD_ADD_ARGS (method_decl) = NULL_TREE;
|
||
}
|
||
|
||
return method_decl;
|
||
}
|
||
|
||
#define METHOD_DEF 0
|
||
#define METHOD_REF 1
|
||
|
||
/* Used by `build_message_expr' and `comp_method_types'. Return an
|
||
argument list for method METH. CONTEXT is either METHOD_DEF or
|
||
METHOD_REF, saying whether we are trying to define a method or call
|
||
one. SUPERFLAG says this is for a send to super; this makes a
|
||
difference for the NeXT calling sequence in which the lookup and
|
||
the method call are done together. */
|
||
|
||
static tree
|
||
get_arg_type_list (meth, context, superflag)
|
||
tree meth;
|
||
int context;
|
||
int superflag;
|
||
{
|
||
tree arglist, akey;
|
||
|
||
/* Receiver type. */
|
||
if (flag_next_runtime && superflag)
|
||
arglist = build_tree_list (NULL_TREE, super_type);
|
||
else if (context == METHOD_DEF)
|
||
arglist = build_tree_list (NULL_TREE, TREE_TYPE (self_decl));
|
||
else
|
||
arglist = build_tree_list (NULL_TREE, id_type);
|
||
|
||
/* Selector type - will eventually change to `int'. */
|
||
chainon (arglist, build_tree_list (NULL_TREE, selector_type));
|
||
|
||
/* Build a list of argument types. */
|
||
for (akey = METHOD_SEL_ARGS (meth); akey; akey = TREE_CHAIN (akey))
|
||
{
|
||
tree arg_decl = groktypename_in_parm_context (TREE_TYPE (akey));
|
||
chainon (arglist, build_tree_list (NULL_TREE, TREE_TYPE (arg_decl)));
|
||
}
|
||
|
||
if (METHOD_ADD_ARGS (meth) == (tree)1)
|
||
/* We have a `, ...' immediately following the selector,
|
||
finalize the arglist...simulate get_parm_info (0). */
|
||
;
|
||
else if (METHOD_ADD_ARGS (meth))
|
||
{
|
||
/* we have a variable length selector */
|
||
tree add_arg_list = TREE_CHAIN (METHOD_ADD_ARGS (meth));
|
||
chainon (arglist, add_arg_list);
|
||
}
|
||
else
|
||
/* finalize the arglist...simulate get_parm_info (1) */
|
||
chainon (arglist, build_tree_list (NULL_TREE, void_type_node));
|
||
|
||
return arglist;
|
||
}
|
||
|
||
static tree
|
||
check_duplicates (hsh)
|
||
hash hsh;
|
||
{
|
||
tree meth = NULL_TREE;
|
||
|
||
if (hsh)
|
||
{
|
||
meth = hsh->key;
|
||
|
||
if (hsh->list)
|
||
{
|
||
/* We have two methods with the same name and different types. */
|
||
attr loop;
|
||
char type = (TREE_CODE (meth) == INSTANCE_METHOD_DECL) ? '-' : '+';
|
||
|
||
warning ("multiple declarations for method `%s'",
|
||
IDENTIFIER_POINTER (METHOD_SEL_NAME (meth)));
|
||
|
||
warn_with_method ("using", type, meth);
|
||
for (loop = hsh->list; loop; loop = loop->next)
|
||
warn_with_method ("also found", type, loop->value);
|
||
}
|
||
}
|
||
return meth;
|
||
}
|
||
|
||
/* If RECEIVER is a class reference, return the identifier node for the
|
||
referenced class. RECEIVER is created by get_class_reference, so we
|
||
check the exact form created depending on which runtimes are used. */
|
||
|
||
static tree
|
||
receiver_is_class_object (receiver)
|
||
tree receiver;
|
||
{
|
||
tree chain, exp, arg;
|
||
if (flag_next_runtime)
|
||
{
|
||
/* The receiver is a variable created by build_class_reference_decl. */
|
||
if (TREE_CODE (receiver) == VAR_DECL
|
||
&& TREE_TYPE (receiver) == objc_class_type)
|
||
/* Look up the identifier. */
|
||
for (chain = cls_ref_chain; chain; chain = TREE_CHAIN (chain))
|
||
if (TREE_PURPOSE (chain) == receiver)
|
||
return TREE_VALUE (chain);
|
||
}
|
||
else
|
||
{
|
||
/* The receiver is a function call that returns an id. Check if
|
||
it is a call to objc_getClass, if so, pick up the class name. */
|
||
if ((exp = TREE_OPERAND (receiver, 0))
|
||
&& TREE_CODE (exp) == ADDR_EXPR
|
||
&& (exp = TREE_OPERAND (exp, 0))
|
||
&& TREE_CODE (exp) == FUNCTION_DECL
|
||
&& exp == objc_get_class_decl
|
||
/* we have a call to objc_getClass! */
|
||
&& (arg = TREE_OPERAND (receiver, 1))
|
||
&& TREE_CODE (arg) == TREE_LIST
|
||
&& (arg = TREE_VALUE (arg)))
|
||
{
|
||
STRIP_NOPS (arg);
|
||
if (TREE_CODE (arg) == ADDR_EXPR
|
||
&& (arg = TREE_OPERAND (arg, 0))
|
||
&& TREE_CODE (arg) == STRING_CST)
|
||
/* Finally, we have the class name. */
|
||
return get_identifier (TREE_STRING_POINTER (arg));
|
||
}
|
||
}
|
||
return 0;
|
||
}
|
||
|
||
/* If we are currently building a message expr, this holds
|
||
the identifier of the selector of the message. This is
|
||
used when printing warnings about argument mismatches. */
|
||
|
||
static tree building_objc_message_expr = 0;
|
||
|
||
tree
|
||
maybe_building_objc_message_expr ()
|
||
{
|
||
return building_objc_message_expr;
|
||
}
|
||
|
||
/* Construct an expression for sending a message.
|
||
MESS has the object to send to in TREE_PURPOSE
|
||
and the argument list (including selector) in TREE_VALUE.
|
||
|
||
(*(<abstract_decl>(*)())_msg)(receiver, selTransTbl[n], ...);
|
||
(*(<abstract_decl>(*)())_msgSuper)(receiver, selTransTbl[n], ...); */
|
||
|
||
tree
|
||
build_message_expr (mess)
|
||
tree mess;
|
||
{
|
||
tree receiver = TREE_PURPOSE (mess);
|
||
tree selector, self_object;
|
||
tree rtype, sel_name;
|
||
tree args = TREE_VALUE (mess);
|
||
tree method_params = NULL_TREE;
|
||
tree method_prototype = NULL_TREE;
|
||
tree retval;
|
||
int statically_typed = 0, statically_allocated = 0;
|
||
tree class_ident = 0;
|
||
|
||
/* 1 if this is sending to the superclass. */
|
||
int super;
|
||
|
||
if (!doing_objc_thang)
|
||
objc_fatal ();
|
||
|
||
if (TREE_CODE (receiver) == ERROR_MARK)
|
||
return error_mark_node;
|
||
|
||
/* Determine receiver type. */
|
||
rtype = TREE_TYPE (receiver);
|
||
super = IS_SUPER (rtype);
|
||
|
||
if (! super)
|
||
{
|
||
if (TREE_STATIC_TEMPLATE (rtype))
|
||
statically_allocated = 1;
|
||
else if (TREE_CODE (rtype) == POINTER_TYPE
|
||
&& TREE_STATIC_TEMPLATE (TREE_TYPE (rtype)))
|
||
statically_typed = 1;
|
||
else if ((flag_next_runtime
|
||
|| (TREE_CODE (receiver) == CALL_EXPR && IS_ID (rtype)))
|
||
&& (class_ident = receiver_is_class_object (receiver)))
|
||
;
|
||
else if (! IS_ID (rtype)
|
||
/* Allow any type that matches objc_class_type. */
|
||
&& ! comptypes (rtype, objc_class_type))
|
||
{
|
||
bzero (errbuf, BUFSIZE);
|
||
warning ("invalid receiver type `%s'",
|
||
gen_declaration (rtype, errbuf));
|
||
}
|
||
|
||
if (statically_allocated)
|
||
receiver = build_unary_op (ADDR_EXPR, receiver, 0);
|
||
|
||
/* Don't evaluate the receiver twice. */
|
||
receiver = save_expr (receiver);
|
||
self_object = receiver;
|
||
}
|
||
else
|
||
/* If sending to `super', use current self as the object. */
|
||
self_object = self_decl;
|
||
|
||
/* Obtain the full selector name. */
|
||
|
||
if (TREE_CODE (args) == IDENTIFIER_NODE)
|
||
/* A unary selector. */
|
||
sel_name = args;
|
||
else if (TREE_CODE (args) == TREE_LIST)
|
||
sel_name = build_keyword_selector (args);
|
||
|
||
/* Build the parameter list to give to the method. */
|
||
|
||
method_params = NULL_TREE;
|
||
if (TREE_CODE (args) == TREE_LIST)
|
||
{
|
||
tree chain = args, prev = NULL_TREE;
|
||
|
||
/* We have a keyword selector--check for comma expressions. */
|
||
while (chain)
|
||
{
|
||
tree element = TREE_VALUE (chain);
|
||
|
||
/* We have a comma expression, must collapse... */
|
||
if (TREE_CODE (element) == TREE_LIST)
|
||
{
|
||
if (prev)
|
||
TREE_CHAIN (prev) = element;
|
||
else
|
||
args = element;
|
||
}
|
||
prev = chain;
|
||
chain = TREE_CHAIN (chain);
|
||
}
|
||
method_params = args;
|
||
}
|
||
|
||
/* Determine operation return type. */
|
||
|
||
if (IS_SUPER (rtype))
|
||
{
|
||
tree iface;
|
||
|
||
if (CLASS_SUPER_NAME (implementation_template))
|
||
{
|
||
iface
|
||
= lookup_interface (CLASS_SUPER_NAME (implementation_template));
|
||
|
||
if (TREE_CODE (method_context) == INSTANCE_METHOD_DECL)
|
||
method_prototype = lookup_instance_method_static (iface, sel_name);
|
||
else
|
||
method_prototype = lookup_class_method_static (iface, sel_name);
|
||
|
||
if (iface && !method_prototype)
|
||
warning ("`%s' does not respond to `%s'",
|
||
IDENTIFIER_POINTER (CLASS_SUPER_NAME (implementation_template)),
|
||
IDENTIFIER_POINTER (sel_name));
|
||
}
|
||
else
|
||
{
|
||
error ("no super class declared in interface for `%s'",
|
||
IDENTIFIER_POINTER (CLASS_NAME (implementation_template)));
|
||
return error_mark_node;
|
||
}
|
||
|
||
}
|
||
else if (statically_allocated)
|
||
{
|
||
tree ctype = TREE_TYPE (rtype);
|
||
tree iface = lookup_interface (TYPE_NAME (rtype));
|
||
|
||
if (iface)
|
||
method_prototype = lookup_instance_method_static (iface, sel_name);
|
||
|
||
if (! method_prototype && TYPE_PROTOCOL_LIST (ctype))
|
||
method_prototype
|
||
= lookup_method_in_protocol_list (TYPE_PROTOCOL_LIST (ctype),
|
||
sel_name, 0);
|
||
|
||
if (!method_prototype)
|
||
warning ("`%s' does not respond to `%s'",
|
||
IDENTIFIER_POINTER (TYPE_NAME (rtype)),
|
||
IDENTIFIER_POINTER (sel_name));
|
||
}
|
||
else if (statically_typed)
|
||
{
|
||
tree ctype = TREE_TYPE (rtype);
|
||
|
||
/* `self' is now statically_typed. All methods should be visible
|
||
within the context of the implementation. */
|
||
if (implementation_context
|
||
&& CLASS_NAME (implementation_context) == TYPE_NAME (ctype))
|
||
{
|
||
method_prototype
|
||
= lookup_instance_method_static (implementation_template,
|
||
sel_name);
|
||
|
||
if (! method_prototype && TYPE_PROTOCOL_LIST (ctype))
|
||
method_prototype
|
||
= lookup_method_in_protocol_list (TYPE_PROTOCOL_LIST (ctype),
|
||
sel_name, 0);
|
||
|
||
if (! method_prototype
|
||
&& implementation_template != implementation_context)
|
||
/* The method is not published in the interface. Check locally. */
|
||
method_prototype
|
||
= lookup_method (CLASS_NST_METHODS (implementation_context),
|
||
sel_name);
|
||
}
|
||
else
|
||
{
|
||
tree iface;
|
||
|
||
if ((iface = lookup_interface (TYPE_NAME (ctype))))
|
||
method_prototype = lookup_instance_method_static (iface, sel_name);
|
||
|
||
if (! method_prototype)
|
||
{
|
||
tree protocol_list = TYPE_PROTOCOL_LIST (ctype);
|
||
if (protocol_list)
|
||
method_prototype
|
||
= lookup_method_in_protocol_list (protocol_list,
|
||
sel_name, 0);
|
||
}
|
||
}
|
||
|
||
if (!method_prototype)
|
||
warning ("`%s' does not respond to `%s'",
|
||
IDENTIFIER_POINTER (TYPE_NAME (ctype)),
|
||
IDENTIFIER_POINTER (sel_name));
|
||
}
|
||
else if (class_ident)
|
||
{
|
||
if (implementation_context
|
||
&& CLASS_NAME (implementation_context) == class_ident)
|
||
{
|
||
method_prototype
|
||
= lookup_class_method_static (implementation_template, sel_name);
|
||
|
||
if (!method_prototype
|
||
&& implementation_template != implementation_context)
|
||
/* The method is not published in the interface. Check locally. */
|
||
method_prototype
|
||
= lookup_method (CLASS_CLS_METHODS (implementation_context),
|
||
sel_name);
|
||
}
|
||
else
|
||
{
|
||
tree iface;
|
||
|
||
if ((iface = lookup_interface (class_ident)))
|
||
method_prototype = lookup_class_method_static (iface, sel_name);
|
||
}
|
||
|
||
if (!method_prototype)
|
||
{
|
||
warning ("cannot find class (factory) method.");
|
||
warning ("return type for `%s' defaults to id",
|
||
IDENTIFIER_POINTER (sel_name));
|
||
}
|
||
}
|
||
else if (IS_PROTOCOL_QUALIFIED_ID (rtype))
|
||
{
|
||
/* An anonymous object that has been qualified with a protocol. */
|
||
|
||
tree protocol_list = TYPE_PROTOCOL_LIST (rtype);
|
||
|
||
method_prototype = lookup_method_in_protocol_list (protocol_list,
|
||
sel_name, 0);
|
||
|
||
if (!method_prototype)
|
||
{
|
||
hash hsh;
|
||
|
||
warning ("method `%s' not implemented by protocol.",
|
||
IDENTIFIER_POINTER (sel_name));
|
||
|
||
/* Try and find the method signature in the global pools. */
|
||
|
||
if (!(hsh = hash_lookup (nst_method_hash_list, sel_name)))
|
||
hsh = hash_lookup (cls_method_hash_list, sel_name);
|
||
|
||
if (!(method_prototype = check_duplicates (hsh)))
|
||
warning ("return type defaults to id");
|
||
}
|
||
}
|
||
else
|
||
{
|
||
hash hsh;
|
||
|
||
/* We think we have an instance...loophole: extern id Object; */
|
||
hsh = hash_lookup (nst_method_hash_list, sel_name);
|
||
if (!hsh)
|
||
/* For various loopholes, like sending messages to self in a
|
||
factory context. */
|
||
hsh = hash_lookup (cls_method_hash_list, sel_name);
|
||
|
||
method_prototype = check_duplicates (hsh);
|
||
if (!method_prototype)
|
||
{
|
||
warning ("cannot find method.");
|
||
warning ("return type for `%s' defaults to id",
|
||
IDENTIFIER_POINTER (sel_name));
|
||
}
|
||
}
|
||
|
||
/* Save the selector name for printing error messages. */
|
||
building_objc_message_expr = sel_name;
|
||
|
||
/* Build the parameters list for looking up the method.
|
||
These are the object itself and the selector. */
|
||
|
||
if (flag_typed_selectors)
|
||
selector = build_typed_selector_reference (sel_name, method_prototype);
|
||
else
|
||
selector = build_selector_reference (sel_name);
|
||
|
||
retval = build_objc_method_call (super, method_prototype,
|
||
receiver, self_object,
|
||
selector, method_params);
|
||
|
||
building_objc_message_expr = 0;
|
||
|
||
return retval;
|
||
}
|
||
|
||
/* Build a tree expression to send OBJECT the operation SELECTOR,
|
||
looking up the method on object LOOKUP_OBJECT (often same as OBJECT),
|
||
assuming the method has prototype METHOD_PROTOTYPE.
|
||
(That is an INSTANCE_METHOD_DECL or CLASS_METHOD_DECL.)
|
||
Use METHOD_PARAMS as list of args to pass to the method.
|
||
If SUPER_FLAG is nonzero, we look up the superclass's method. */
|
||
|
||
static tree
|
||
build_objc_method_call (super_flag, method_prototype, lookup_object, object,
|
||
selector, method_params)
|
||
int super_flag;
|
||
tree method_prototype, lookup_object, object, selector, method_params;
|
||
{
|
||
tree sender = (super_flag ? umsg_super_decl : umsg_decl);
|
||
tree rcv_p = (super_flag
|
||
? build_pointer_type (xref_tag (RECORD_TYPE,
|
||
get_identifier (TAG_SUPER)))
|
||
: id_type);
|
||
|
||
if (flag_next_runtime)
|
||
{
|
||
if (! method_prototype)
|
||
{
|
||
method_params = tree_cons (NULL_TREE, lookup_object,
|
||
tree_cons (NULL_TREE, selector,
|
||
method_params));
|
||
assemble_external (sender);
|
||
return build_function_call (sender, method_params);
|
||
}
|
||
else
|
||
{
|
||
/* This is a real kludge, but it is used only for the Next.
|
||
Clobber the data type of SENDER temporarily to accept
|
||
all the arguments for this operation, and to return
|
||
whatever this operation returns. */
|
||
tree arglist = NULL_TREE;
|
||
tree retval;
|
||
|
||
/* Save the proper contents of SENDER's data type. */
|
||
tree savarg = TYPE_ARG_TYPES (TREE_TYPE (sender));
|
||
tree savret = TREE_TYPE (TREE_TYPE (sender));
|
||
|
||
/* Install this method's argument types. */
|
||
arglist = get_arg_type_list (method_prototype, METHOD_REF,
|
||
super_flag);
|
||
TYPE_ARG_TYPES (TREE_TYPE (sender)) = arglist;
|
||
|
||
/* Install this method's return type. */
|
||
TREE_TYPE (TREE_TYPE (sender))
|
||
= groktypename (TREE_TYPE (method_prototype));
|
||
|
||
/* Call SENDER with all the parameters. This will do type
|
||
checking using the arg types for this method. */
|
||
method_params = tree_cons (NULL_TREE, lookup_object,
|
||
tree_cons (NULL_TREE, selector,
|
||
method_params));
|
||
assemble_external (sender);
|
||
retval = build_function_call (sender, method_params);
|
||
|
||
/* Restore SENDER's return/argument types. */
|
||
TYPE_ARG_TYPES (TREE_TYPE (sender)) = savarg;
|
||
TREE_TYPE (TREE_TYPE (sender)) = savret;
|
||
return retval;
|
||
}
|
||
}
|
||
else
|
||
{
|
||
/* This is the portable way.
|
||
First call the lookup function to get a pointer to the method,
|
||
then cast the pointer, then call it with the method arguments. */
|
||
tree method;
|
||
|
||
/* Avoid trouble since we may evaluate each of these twice. */
|
||
object = save_expr (object);
|
||
selector = save_expr (selector);
|
||
|
||
lookup_object = build_c_cast (rcv_p, lookup_object);
|
||
|
||
assemble_external (sender);
|
||
method
|
||
= build_function_call (sender,
|
||
tree_cons (NULL_TREE, lookup_object,
|
||
tree_cons (NULL_TREE, selector,
|
||
NULL_TREE)));
|
||
|
||
/* If we have a method prototype, construct the data type this
|
||
method needs, and cast what we got from SENDER into a pointer
|
||
to that type. */
|
||
if (method_prototype)
|
||
{
|
||
tree arglist = get_arg_type_list (method_prototype, METHOD_REF,
|
||
super_flag);
|
||
tree valtype = groktypename (TREE_TYPE (method_prototype));
|
||
tree fake_function_type = build_function_type (valtype, arglist);
|
||
TREE_TYPE (method) = build_pointer_type (fake_function_type);
|
||
}
|
||
else
|
||
TREE_TYPE (method)
|
||
= build_pointer_type (build_function_type (ptr_type_node, NULL_TREE));
|
||
|
||
/* Pass the object to the method. */
|
||
assemble_external (method);
|
||
return build_function_call (method,
|
||
tree_cons (NULL_TREE, object,
|
||
tree_cons (NULL_TREE, selector,
|
||
method_params)));
|
||
}
|
||
}
|
||
|
||
static void
|
||
build_protocol_reference (p)
|
||
tree p;
|
||
{
|
||
tree decl, ident, ptype;
|
||
|
||
push_obstacks_nochange ();
|
||
end_temporary_allocation ();
|
||
|
||
/* extern struct objc_protocol _OBJC_PROTOCOL_<mumble>; */
|
||
|
||
ident = synth_id_with_class_suffix ("_OBJC_PROTOCOL", p);
|
||
ptype
|
||
= groktypename (build_tree_list (build_tree_list (NULL_TREE,
|
||
objc_protocol_template),
|
||
NULL_TREE));
|
||
|
||
if (IDENTIFIER_GLOBAL_VALUE (ident))
|
||
decl = IDENTIFIER_GLOBAL_VALUE (ident); /* Set by pushdecl. */
|
||
else
|
||
{
|
||
decl = build_decl (VAR_DECL, ident, ptype);
|
||
DECL_EXTERNAL (decl) = 1;
|
||
TREE_PUBLIC (decl) = 1;
|
||
TREE_USED (decl) = 1;
|
||
DECL_ARTIFICIAL (decl) = 1;
|
||
|
||
make_decl_rtl (decl, 0, 1);
|
||
pushdecl_top_level (decl);
|
||
}
|
||
|
||
PROTOCOL_FORWARD_DECL (p) = decl;
|
||
pop_obstacks ();
|
||
}
|
||
|
||
tree
|
||
build_protocol_expr (protoname)
|
||
tree protoname;
|
||
{
|
||
tree expr;
|
||
tree p;
|
||
|
||
if (!doing_objc_thang)
|
||
objc_fatal ();
|
||
|
||
p = lookup_protocol (protoname);
|
||
|
||
if (!p)
|
||
{
|
||
error ("Cannot find protocol declaration for `%s'",
|
||
IDENTIFIER_POINTER (protoname));
|
||
return error_mark_node;
|
||
}
|
||
|
||
if (!PROTOCOL_FORWARD_DECL (p))
|
||
build_protocol_reference (p);
|
||
|
||
expr = build_unary_op (ADDR_EXPR, PROTOCOL_FORWARD_DECL (p), 0);
|
||
|
||
TREE_TYPE (expr) = protocol_type;
|
||
|
||
return expr;
|
||
}
|
||
|
||
tree
|
||
build_selector_expr (selnamelist)
|
||
tree selnamelist;
|
||
{
|
||
tree selname;
|
||
|
||
if (!doing_objc_thang)
|
||
objc_fatal ();
|
||
|
||
/* Obtain the full selector name. */
|
||
if (TREE_CODE (selnamelist) == IDENTIFIER_NODE)
|
||
/* A unary selector. */
|
||
selname = selnamelist;
|
||
else if (TREE_CODE (selnamelist) == TREE_LIST)
|
||
selname = build_keyword_selector (selnamelist);
|
||
|
||
if (flag_typed_selectors)
|
||
return build_typed_selector_reference (selname, 0);
|
||
else
|
||
return build_selector_reference (selname);
|
||
}
|
||
|
||
tree
|
||
build_encode_expr (type)
|
||
tree type;
|
||
{
|
||
tree result;
|
||
char *string;
|
||
|
||
if (!doing_objc_thang)
|
||
objc_fatal ();
|
||
|
||
encode_type (type, obstack_object_size (&util_obstack),
|
||
OBJC_ENCODE_INLINE_DEFS);
|
||
obstack_1grow (&util_obstack, 0); /* null terminate string */
|
||
string = obstack_finish (&util_obstack);
|
||
|
||
/* Synthesize a string that represents the encoded struct/union. */
|
||
result = my_build_string (strlen (string) + 1, string);
|
||
obstack_free (&util_obstack, util_firstobj);
|
||
return result;
|
||
}
|
||
|
||
tree
|
||
build_ivar_reference (id)
|
||
tree id;
|
||
{
|
||
if (TREE_CODE (method_context) == CLASS_METHOD_DECL)
|
||
{
|
||
/* Historically, a class method that produced objects (factory
|
||
method) would assign `self' to the instance that it
|
||
allocated. This would effectively turn the class method into
|
||
an instance method. Following this assignment, the instance
|
||
variables could be accessed. That practice, while safe,
|
||
violates the simple rule that a class method should not refer
|
||
to an instance variable. It's better to catch the cases
|
||
where this is done unknowingly than to support the above
|
||
paradigm. */
|
||
warning ("instance variable `%s' accessed in class method",
|
||
IDENTIFIER_POINTER (id));
|
||
TREE_TYPE (self_decl) = instance_type; /* cast */
|
||
}
|
||
|
||
return build_component_ref (build_indirect_ref (self_decl, "->"), id);
|
||
}
|
||
|
||
#define HASH_ALLOC_LIST_SIZE 170
|
||
#define ATTR_ALLOC_LIST_SIZE 170
|
||
#define SIZEHASHTABLE 257
|
||
|
||
/* make positive */
|
||
#define HASHFUNCTION(key) ((HOST_WIDE_INT) key & 0x7fffffff)
|
||
|
||
static void
|
||
hash_init ()
|
||
{
|
||
nst_method_hash_list = (hash *)xmalloc (SIZEHASHTABLE * sizeof (hash));
|
||
cls_method_hash_list = (hash *)xmalloc (SIZEHASHTABLE * sizeof (hash));
|
||
|
||
if (!nst_method_hash_list || !cls_method_hash_list)
|
||
perror ("unable to allocate space in objc-tree.c");
|
||
else
|
||
{
|
||
int i;
|
||
|
||
for (i = 0; i < SIZEHASHTABLE; i++)
|
||
{
|
||
nst_method_hash_list[i] = 0;
|
||
cls_method_hash_list[i] = 0;
|
||
}
|
||
}
|
||
}
|
||
|
||
static void
|
||
hash_enter (hashlist, method)
|
||
hash *hashlist;
|
||
tree method;
|
||
{
|
||
static hash hash_alloc_list = 0;
|
||
static int hash_alloc_index = 0;
|
||
hash obj;
|
||
int slot = HASHFUNCTION (METHOD_SEL_NAME (method)) % SIZEHASHTABLE;
|
||
|
||
if (! hash_alloc_list || hash_alloc_index >= HASH_ALLOC_LIST_SIZE)
|
||
{
|
||
hash_alloc_index = 0;
|
||
hash_alloc_list = (hash) xmalloc (sizeof (struct hashed_entry)
|
||
* HASH_ALLOC_LIST_SIZE);
|
||
if (! hash_alloc_list)
|
||
perror ("unable to allocate in objc-tree.c");
|
||
}
|
||
obj = &hash_alloc_list[hash_alloc_index++];
|
||
obj->list = 0;
|
||
obj->next = hashlist[slot];
|
||
obj->key = method;
|
||
|
||
hashlist[slot] = obj; /* append to front */
|
||
}
|
||
|
||
static hash
|
||
hash_lookup (hashlist, sel_name)
|
||
hash *hashlist;
|
||
tree sel_name;
|
||
{
|
||
hash target;
|
||
|
||
target = hashlist[HASHFUNCTION (sel_name) % SIZEHASHTABLE];
|
||
|
||
while (target)
|
||
{
|
||
if (sel_name == METHOD_SEL_NAME (target->key))
|
||
return target;
|
||
|
||
target = target->next;
|
||
}
|
||
return 0;
|
||
}
|
||
|
||
static void
|
||
hash_add_attr (entry, value)
|
||
hash entry;
|
||
tree value;
|
||
{
|
||
static attr attr_alloc_list = 0;
|
||
static int attr_alloc_index = 0;
|
||
attr obj;
|
||
|
||
if (! attr_alloc_list || attr_alloc_index >= ATTR_ALLOC_LIST_SIZE)
|
||
{
|
||
attr_alloc_index = 0;
|
||
attr_alloc_list = (attr) xmalloc (sizeof (struct hashed_attribute)
|
||
* ATTR_ALLOC_LIST_SIZE);
|
||
if (! attr_alloc_list)
|
||
perror ("unable to allocate in objc-tree.c");
|
||
}
|
||
obj = &attr_alloc_list[attr_alloc_index++];
|
||
obj->next = entry->list;
|
||
obj->value = value;
|
||
|
||
entry->list = obj; /* append to front */
|
||
}
|
||
|
||
static tree
|
||
lookup_method (mchain, method)
|
||
tree mchain;
|
||
tree method;
|
||
{
|
||
tree key;
|
||
|
||
if (TREE_CODE (method) == IDENTIFIER_NODE)
|
||
key = method;
|
||
else
|
||
key = METHOD_SEL_NAME (method);
|
||
|
||
while (mchain)
|
||
{
|
||
if (METHOD_SEL_NAME (mchain) == key)
|
||
return mchain;
|
||
mchain = TREE_CHAIN (mchain);
|
||
}
|
||
return NULL_TREE;
|
||
}
|
||
|
||
static tree
|
||
lookup_instance_method_static (interface, ident)
|
||
tree interface;
|
||
tree ident;
|
||
{
|
||
tree inter = interface;
|
||
tree chain = CLASS_NST_METHODS (inter);
|
||
tree meth = NULL_TREE;
|
||
|
||
do
|
||
{
|
||
if ((meth = lookup_method (chain, ident)))
|
||
return meth;
|
||
|
||
if (CLASS_CATEGORY_LIST (inter))
|
||
{
|
||
tree category = CLASS_CATEGORY_LIST (inter);
|
||
chain = CLASS_NST_METHODS (category);
|
||
|
||
do
|
||
{
|
||
if ((meth = lookup_method (chain, ident)))
|
||
return meth;
|
||
|
||
/* Check for instance methods in protocols in categories. */
|
||
if (CLASS_PROTOCOL_LIST (category))
|
||
{
|
||
if ((meth = (lookup_method_in_protocol_list
|
||
(CLASS_PROTOCOL_LIST (category), ident, 0))))
|
||
return meth;
|
||
}
|
||
|
||
if ((category = CLASS_CATEGORY_LIST (category)))
|
||
chain = CLASS_NST_METHODS (category);
|
||
}
|
||
while (category);
|
||
}
|
||
|
||
if (CLASS_PROTOCOL_LIST (inter))
|
||
{
|
||
if ((meth = (lookup_method_in_protocol_list
|
||
(CLASS_PROTOCOL_LIST (inter), ident, 0))))
|
||
return meth;
|
||
}
|
||
|
||
if ((inter = lookup_interface (CLASS_SUPER_NAME (inter))))
|
||
chain = CLASS_NST_METHODS (inter);
|
||
}
|
||
while (inter);
|
||
|
||
return meth;
|
||
}
|
||
|
||
static tree
|
||
lookup_class_method_static (interface, ident)
|
||
tree interface;
|
||
tree ident;
|
||
{
|
||
tree inter = interface;
|
||
tree chain = CLASS_CLS_METHODS (inter);
|
||
tree meth = NULL_TREE;
|
||
tree root_inter = NULL_TREE;
|
||
|
||
do
|
||
{
|
||
if ((meth = lookup_method (chain, ident)))
|
||
return meth;
|
||
|
||
if (CLASS_CATEGORY_LIST (inter))
|
||
{
|
||
tree category = CLASS_CATEGORY_LIST (inter);
|
||
chain = CLASS_CLS_METHODS (category);
|
||
|
||
do
|
||
{
|
||
if ((meth = lookup_method (chain, ident)))
|
||
return meth;
|
||
|
||
/* Check for class methods in protocols in categories. */
|
||
if (CLASS_PROTOCOL_LIST (category))
|
||
{
|
||
if ((meth = (lookup_method_in_protocol_list
|
||
(CLASS_PROTOCOL_LIST (category), ident, 1))))
|
||
return meth;
|
||
}
|
||
|
||
if ((category = CLASS_CATEGORY_LIST (category)))
|
||
chain = CLASS_CLS_METHODS (category);
|
||
}
|
||
while (category);
|
||
}
|
||
|
||
/* Check for class methods in protocols. */
|
||
if (CLASS_PROTOCOL_LIST (inter))
|
||
{
|
||
if ((meth = (lookup_method_in_protocol_list
|
||
(CLASS_PROTOCOL_LIST (inter), ident, 1))))
|
||
return meth;
|
||
}
|
||
|
||
root_inter = inter;
|
||
if ((inter = lookup_interface (CLASS_SUPER_NAME (inter))))
|
||
chain = CLASS_CLS_METHODS (inter);
|
||
}
|
||
while (inter);
|
||
|
||
/* Simulate wrap around. */
|
||
return lookup_instance_method_static (root_inter, ident);
|
||
}
|
||
|
||
tree
|
||
add_class_method (class, method)
|
||
tree class;
|
||
tree method;
|
||
{
|
||
tree mth;
|
||
hash hsh;
|
||
|
||
/* We will have allocated the method parameter declarations on the
|
||
maybepermanent_obstack. Need to make sure they stick around! */
|
||
preserve_data ();
|
||
|
||
if (!(mth = lookup_method (CLASS_CLS_METHODS (class), method)))
|
||
{
|
||
/* put method on list in reverse order */
|
||
TREE_CHAIN (method) = CLASS_CLS_METHODS (class);
|
||
CLASS_CLS_METHODS (class) = method;
|
||
}
|
||
else
|
||
{
|
||
if (TREE_CODE (class) == CLASS_IMPLEMENTATION_TYPE)
|
||
error ("duplicate definition of class method `%s'.",
|
||
IDENTIFIER_POINTER (METHOD_SEL_NAME (mth)));
|
||
else
|
||
{
|
||
/* Check types; if different, complain. */
|
||
if (!comp_proto_with_proto (method, mth))
|
||
error ("duplicate declaration of class method `%s'.",
|
||
IDENTIFIER_POINTER (METHOD_SEL_NAME (mth)));
|
||
}
|
||
}
|
||
|
||
if (!(hsh = hash_lookup (cls_method_hash_list, METHOD_SEL_NAME (method))))
|
||
{
|
||
/* Install on a global chain. */
|
||
hash_enter (cls_method_hash_list, method);
|
||
}
|
||
else
|
||
{
|
||
/* Check types; if different, add to a list. */
|
||
if (!comp_proto_with_proto (method, hsh->key))
|
||
hash_add_attr (hsh, method);
|
||
}
|
||
return method;
|
||
}
|
||
|
||
tree
|
||
add_instance_method (class, method)
|
||
tree class;
|
||
tree method;
|
||
{
|
||
tree mth;
|
||
hash hsh;
|
||
|
||
/* We will have allocated the method parameter declarations on the
|
||
maybepermanent_obstack. Need to make sure they stick around! */
|
||
preserve_data ();
|
||
|
||
if (!(mth = lookup_method (CLASS_NST_METHODS (class), method)))
|
||
{
|
||
/* Put method on list in reverse order. */
|
||
TREE_CHAIN (method) = CLASS_NST_METHODS (class);
|
||
CLASS_NST_METHODS (class) = method;
|
||
}
|
||
else
|
||
{
|
||
if (TREE_CODE (class) == CLASS_IMPLEMENTATION_TYPE)
|
||
error ("duplicate definition of instance method `%s'.",
|
||
IDENTIFIER_POINTER (METHOD_SEL_NAME (mth)));
|
||
else
|
||
{
|
||
/* Check types; if different, complain. */
|
||
if (!comp_proto_with_proto (method, mth))
|
||
error ("duplicate declaration of instance method `%s'.",
|
||
IDENTIFIER_POINTER (METHOD_SEL_NAME (mth)));
|
||
}
|
||
}
|
||
|
||
if (!(hsh = hash_lookup (nst_method_hash_list, METHOD_SEL_NAME (method))))
|
||
{
|
||
/* Install on a global chain. */
|
||
hash_enter (nst_method_hash_list, method);
|
||
}
|
||
else
|
||
{
|
||
/* Check types; if different, add to a list. */
|
||
if (!comp_proto_with_proto (method, hsh->key))
|
||
hash_add_attr (hsh, method);
|
||
}
|
||
return method;
|
||
}
|
||
|
||
static tree
|
||
add_class (class)
|
||
tree class;
|
||
{
|
||
/* Put interfaces on list in reverse order. */
|
||
TREE_CHAIN (class) = interface_chain;
|
||
interface_chain = class;
|
||
return interface_chain;
|
||
}
|
||
|
||
static void
|
||
add_category (class, category)
|
||
tree class;
|
||
tree category;
|
||
{
|
||
/* Put categories on list in reverse order. */
|
||
tree cat = CLASS_CATEGORY_LIST (class);
|
||
|
||
while (cat)
|
||
{
|
||
if (CLASS_SUPER_NAME (cat) == CLASS_SUPER_NAME (category))
|
||
warning ("duplicate interface declaration for category `%s(%s)'",
|
||
IDENTIFIER_POINTER (CLASS_NAME (class)),
|
||
IDENTIFIER_POINTER (CLASS_SUPER_NAME (category)));
|
||
cat = CLASS_CATEGORY_LIST (cat);
|
||
}
|
||
|
||
CLASS_CATEGORY_LIST (category) = CLASS_CATEGORY_LIST (class);
|
||
CLASS_CATEGORY_LIST (class) = category;
|
||
}
|
||
|
||
/* Called after parsing each instance variable declaration. Necessary to
|
||
preserve typedefs and implement public/private...
|
||
|
||
PUBLIC is 1 for public, 0 for protected, and 2 for private. */
|
||
|
||
tree
|
||
add_instance_variable (class, public, declarator, declspecs, width)
|
||
tree class;
|
||
int public;
|
||
tree declarator;
|
||
tree declspecs;
|
||
tree width;
|
||
{
|
||
tree field_decl, raw_decl;
|
||
|
||
raw_decl = build_tree_list (declspecs, declarator);
|
||
|
||
if (CLASS_RAW_IVARS (class))
|
||
chainon (CLASS_RAW_IVARS (class), raw_decl);
|
||
else
|
||
CLASS_RAW_IVARS (class) = raw_decl;
|
||
|
||
field_decl = grokfield (input_filename, lineno,
|
||
declarator, declspecs, width);
|
||
|
||
/* Overload the public attribute, it is not used for FIELD_DECLs. */
|
||
switch (public)
|
||
{
|
||
case 0:
|
||
TREE_PUBLIC (field_decl) = 0;
|
||
TREE_PRIVATE (field_decl) = 0;
|
||
TREE_PROTECTED (field_decl) = 1;
|
||
break;
|
||
|
||
case 1:
|
||
TREE_PUBLIC (field_decl) = 1;
|
||
TREE_PRIVATE (field_decl) = 0;
|
||
TREE_PROTECTED (field_decl) = 0;
|
||
break;
|
||
|
||
case 2:
|
||
TREE_PUBLIC (field_decl) = 0;
|
||
TREE_PRIVATE (field_decl) = 1;
|
||
TREE_PROTECTED (field_decl) = 0;
|
||
break;
|
||
|
||
}
|
||
|
||
if (CLASS_IVARS (class))
|
||
chainon (CLASS_IVARS (class), field_decl);
|
||
else
|
||
CLASS_IVARS (class) = field_decl;
|
||
|
||
return class;
|
||
}
|
||
|
||
tree
|
||
is_ivar (decl_chain, ident)
|
||
tree decl_chain;
|
||
tree ident;
|
||
{
|
||
for ( ; decl_chain; decl_chain = TREE_CHAIN (decl_chain))
|
||
if (DECL_NAME (decl_chain) == ident)
|
||
return decl_chain;
|
||
return NULL_TREE;
|
||
}
|
||
|
||
/* True if the ivar is private and we are not in its implementation. */
|
||
|
||
int
|
||
is_private (decl)
|
||
tree decl;
|
||
{
|
||
if (TREE_PRIVATE (decl)
|
||
&& ! is_ivar (CLASS_IVARS (implementation_template), DECL_NAME (decl)))
|
||
{
|
||
error ("instance variable `%s' is declared private",
|
||
IDENTIFIER_POINTER (DECL_NAME (decl)));
|
||
return 1;
|
||
}
|
||
else
|
||
return 0;
|
||
}
|
||
|
||
/* We have an instance variable reference;, check to see if it is public. */
|
||
|
||
int
|
||
is_public (expr, identifier)
|
||
tree expr;
|
||
tree identifier;
|
||
{
|
||
tree basetype = TREE_TYPE (expr);
|
||
enum tree_code code = TREE_CODE (basetype);
|
||
tree decl;
|
||
|
||
if (code == RECORD_TYPE)
|
||
{
|
||
if (TREE_STATIC_TEMPLATE (basetype))
|
||
{
|
||
if (!lookup_interface (TYPE_NAME (basetype)))
|
||
{
|
||
error ("Cannot find interface declaration for `%s'",
|
||
IDENTIFIER_POINTER (TYPE_NAME (basetype)));
|
||
return 0;
|
||
}
|
||
|
||
if ((decl = is_ivar (TYPE_FIELDS (basetype), identifier)))
|
||
{
|
||
if (TREE_PUBLIC (decl))
|
||
return 1;
|
||
|
||
/* Important difference between the Stepstone translator:
|
||
all instance variables should be public within the context
|
||
of the implementation. */
|
||
if (implementation_context
|
||
&& (((TREE_CODE (implementation_context)
|
||
== CLASS_IMPLEMENTATION_TYPE)
|
||
|| (TREE_CODE (implementation_context)
|
||
== CATEGORY_IMPLEMENTATION_TYPE))
|
||
&& (CLASS_NAME (implementation_context)
|
||
== TYPE_NAME (basetype))))
|
||
return ! is_private (decl);
|
||
|
||
error ("instance variable `%s' is declared %s",
|
||
IDENTIFIER_POINTER (identifier),
|
||
TREE_PRIVATE (decl) ? "private" : "protected");
|
||
return 0;
|
||
}
|
||
}
|
||
|
||
else if (implementation_context && (basetype == objc_object_reference))
|
||
{
|
||
TREE_TYPE (expr) = uprivate_record;
|
||
warning ("static access to object of type `id'");
|
||
}
|
||
}
|
||
|
||
return 1;
|
||
}
|
||
|
||
/* Implement @defs (<classname>) within struct bodies. */
|
||
|
||
tree
|
||
get_class_ivars (interface)
|
||
tree interface;
|
||
{
|
||
if (!doing_objc_thang)
|
||
objc_fatal ();
|
||
|
||
return build_ivar_chain (interface, 1);
|
||
}
|
||
|
||
/* Make sure all entries in CHAIN are also in LIST. */
|
||
|
||
static int
|
||
check_methods (chain, list, mtype)
|
||
tree chain;
|
||
tree list;
|
||
int mtype;
|
||
{
|
||
int first = 1;
|
||
|
||
while (chain)
|
||
{
|
||
if (!lookup_method (list, chain))
|
||
{
|
||
if (first)
|
||
{
|
||
if (TREE_CODE (implementation_context)
|
||
== CLASS_IMPLEMENTATION_TYPE)
|
||
warning ("incomplete implementation of class `%s'",
|
||
IDENTIFIER_POINTER (CLASS_NAME (implementation_context)));
|
||
else if (TREE_CODE (implementation_context)
|
||
== CATEGORY_IMPLEMENTATION_TYPE)
|
||
warning ("incomplete implementation of category `%s'",
|
||
IDENTIFIER_POINTER (CLASS_SUPER_NAME (implementation_context)));
|
||
first = 0;
|
||
}
|
||
|
||
warning ("method definition for `%c%s' not found",
|
||
mtype, IDENTIFIER_POINTER (METHOD_SEL_NAME (chain)));
|
||
}
|
||
|
||
chain = TREE_CHAIN (chain);
|
||
}
|
||
|
||
return first;
|
||
}
|
||
|
||
static int
|
||
conforms_to_protocol (class, protocol)
|
||
tree class;
|
||
tree protocol;
|
||
{
|
||
while (protocol)
|
||
{
|
||
tree p = CLASS_PROTOCOL_LIST (class);
|
||
|
||
while (p && TREE_VALUE (p) != TREE_VALUE (protocol))
|
||
p = TREE_CHAIN (p);
|
||
|
||
if (!p)
|
||
{
|
||
tree super = (CLASS_SUPER_NAME (class)
|
||
? lookup_interface (CLASS_SUPER_NAME (class))
|
||
: NULL_TREE);
|
||
int tmp = super ? conforms_to_protocol (super, protocol) : 0;
|
||
if (!tmp)
|
||
return 0;
|
||
}
|
||
|
||
protocol = TREE_CHAIN (protocol);
|
||
}
|
||
|
||
return 1;
|
||
}
|
||
|
||
/* Make sure all methods in CHAIN are accessible as MTYPE methods in
|
||
CONTEXT. This is one of two mechanisms to check protocol integrity. */
|
||
|
||
static int
|
||
check_methods_accessible (chain, context, mtype)
|
||
tree chain;
|
||
tree context;
|
||
int mtype;
|
||
{
|
||
int first = 1;
|
||
tree list;
|
||
tree base_context = context;
|
||
|
||
while (chain)
|
||
{
|
||
context = base_context;
|
||
while (context)
|
||
{
|
||
if (mtype == '+')
|
||
list = CLASS_CLS_METHODS (context);
|
||
else
|
||
list = CLASS_NST_METHODS (context);
|
||
|
||
if (lookup_method (list, chain))
|
||
break;
|
||
|
||
else if (TREE_CODE (context) == CLASS_IMPLEMENTATION_TYPE
|
||
|| TREE_CODE (context) == CLASS_INTERFACE_TYPE)
|
||
context = (CLASS_SUPER_NAME (context)
|
||
? lookup_interface (CLASS_SUPER_NAME (context))
|
||
: NULL_TREE);
|
||
|
||
else if (TREE_CODE (context) == CATEGORY_IMPLEMENTATION_TYPE
|
||
|| TREE_CODE (context) == CATEGORY_INTERFACE_TYPE)
|
||
context = (CLASS_NAME (context)
|
||
? lookup_interface (CLASS_NAME (context))
|
||
: NULL_TREE);
|
||
else
|
||
abort ();
|
||
}
|
||
|
||
if (context == NULL_TREE)
|
||
{
|
||
if (first)
|
||
{
|
||
if (TREE_CODE (implementation_context)
|
||
== CLASS_IMPLEMENTATION_TYPE)
|
||
warning ("incomplete implementation of class `%s'",
|
||
IDENTIFIER_POINTER
|
||
(CLASS_NAME (implementation_context)));
|
||
else if (TREE_CODE (implementation_context)
|
||
== CATEGORY_IMPLEMENTATION_TYPE)
|
||
warning ("incomplete implementation of category `%s'",
|
||
IDENTIFIER_POINTER
|
||
(CLASS_SUPER_NAME (implementation_context)));
|
||
first = 0;
|
||
}
|
||
warning ("method definition for `%c%s' not found",
|
||
mtype, IDENTIFIER_POINTER (METHOD_SEL_NAME (chain)));
|
||
}
|
||
|
||
chain = TREE_CHAIN (chain); /* next method... */
|
||
}
|
||
return first;
|
||
}
|
||
|
||
static void
|
||
check_protocols (proto_list, type, name)
|
||
tree proto_list;
|
||
char *type;
|
||
char *name;
|
||
{
|
||
for ( ; proto_list; proto_list = TREE_CHAIN (proto_list))
|
||
{
|
||
tree p = TREE_VALUE (proto_list);
|
||
|
||
if (TREE_CODE (p) == PROTOCOL_INTERFACE_TYPE)
|
||
{
|
||
int f1, f2;
|
||
|
||
/* Ensure that all protocols have bodies. */
|
||
if (flag_warn_protocol) {
|
||
f1 = check_methods (PROTOCOL_CLS_METHODS (p),
|
||
CLASS_CLS_METHODS (implementation_context),
|
||
'+');
|
||
f2 = check_methods (PROTOCOL_NST_METHODS (p),
|
||
CLASS_NST_METHODS (implementation_context),
|
||
'-');
|
||
} else {
|
||
f1 = check_methods_accessible (PROTOCOL_CLS_METHODS (p),
|
||
implementation_context,
|
||
'+');
|
||
f2 = check_methods_accessible (PROTOCOL_NST_METHODS (p),
|
||
implementation_context,
|
||
'-');
|
||
}
|
||
|
||
if (!f1 || !f2)
|
||
warning ("%s `%s' does not fully implement the `%s' protocol",
|
||
type, name, IDENTIFIER_POINTER (PROTOCOL_NAME (p)));
|
||
|
||
}
|
||
else
|
||
; /* An identifier if we could not find a protocol. */
|
||
|
||
/* Check protocols recursively. */
|
||
if (PROTOCOL_LIST (p))
|
||
{
|
||
tree super_class
|
||
= lookup_interface (CLASS_SUPER_NAME (implementation_template));
|
||
if (! conforms_to_protocol (super_class, PROTOCOL_LIST (p)))
|
||
check_protocols (PROTOCOL_LIST (p), type, name);
|
||
}
|
||
}
|
||
}
|
||
|
||
/* Make sure that the class CLASS_NAME is defined
|
||
CODE says which kind of thing CLASS_NAME ought to be.
|
||
It can be CLASS_INTERFACE_TYPE, CLASS_IMPLEMENTATION_TYPE,
|
||
CATEGORY_INTERFACE_TYPE, or CATEGORY_IMPLEMENTATION_TYPE.
|
||
|
||
If CODE is CLASS_INTERFACE_TYPE, we also do a push_obstacks_nochange
|
||
whose matching pop is in continue_class. */
|
||
|
||
tree
|
||
start_class (code, class_name, super_name, protocol_list)
|
||
enum tree_code code;
|
||
tree class_name;
|
||
tree super_name;
|
||
tree protocol_list;
|
||
{
|
||
tree class, decl;
|
||
|
||
if (code == CLASS_INTERFACE_TYPE)
|
||
{
|
||
push_obstacks_nochange ();
|
||
end_temporary_allocation ();
|
||
}
|
||
|
||
if (!doing_objc_thang)
|
||
objc_fatal ();
|
||
|
||
class = make_node (code);
|
||
TYPE_BINFO (class) = make_tree_vec (5);
|
||
|
||
CLASS_NAME (class) = class_name;
|
||
CLASS_SUPER_NAME (class) = super_name;
|
||
CLASS_CLS_METHODS (class) = NULL_TREE;
|
||
|
||
if (! is_class_name (class_name) && (decl = lookup_name (class_name)))
|
||
{
|
||
error ("`%s' redeclared as different kind of symbol",
|
||
IDENTIFIER_POINTER (class_name));
|
||
error_with_decl (decl, "previous declaration of `%s'");
|
||
}
|
||
|
||
if (code == CLASS_IMPLEMENTATION_TYPE)
|
||
{
|
||
{
|
||
static tree implemented_classes = 0;
|
||
tree chain = implemented_classes;
|
||
for (chain = implemented_classes; chain; chain = TREE_CHAIN (chain))
|
||
if (TREE_VALUE (chain) == class_name)
|
||
{
|
||
error ("reimplementation of class `%s'",
|
||
IDENTIFIER_POINTER (class_name));
|
||
return error_mark_node;
|
||
}
|
||
implemented_classes = perm_tree_cons (NULL_TREE, class_name,
|
||
implemented_classes);
|
||
}
|
||
|
||
/* Pre-build the following entities - for speed/convenience. */
|
||
if (!self_id)
|
||
self_id = get_identifier ("self");
|
||
if (!ucmd_id)
|
||
ucmd_id = get_identifier ("_cmd");
|
||
if (!unused_list)
|
||
unused_list
|
||
= build_tree_list (get_identifier ("__unused__"), NULL_TREE);
|
||
if (!objc_super_template)
|
||
objc_super_template = build_super_template ();
|
||
|
||
/* Reset for multiple classes per file. */
|
||
method_slot = 0;
|
||
|
||
implementation_context = class;
|
||
|
||
/* Lookup the interface for this implementation. */
|
||
|
||
if (!(implementation_template = lookup_interface (class_name)))
|
||
{
|
||
warning ("Cannot find interface declaration for `%s'",
|
||
IDENTIFIER_POINTER (class_name));
|
||
add_class (implementation_template = implementation_context);
|
||
}
|
||
|
||
/* If a super class has been specified in the implementation,
|
||
insure it conforms to the one specified in the interface. */
|
||
|
||
if (super_name
|
||
&& (super_name != CLASS_SUPER_NAME (implementation_template)))
|
||
{
|
||
tree previous_name = CLASS_SUPER_NAME (implementation_template);
|
||
char *name = previous_name ? IDENTIFIER_POINTER (previous_name) : "";
|
||
error ("conflicting super class name `%s'",
|
||
IDENTIFIER_POINTER (super_name));
|
||
error ("previous declaration of `%s'", name);
|
||
}
|
||
|
||
else if (! super_name)
|
||
{
|
||
CLASS_SUPER_NAME (implementation_context)
|
||
= CLASS_SUPER_NAME (implementation_template);
|
||
}
|
||
}
|
||
|
||
else if (code == CLASS_INTERFACE_TYPE)
|
||
{
|
||
if (lookup_interface (class_name))
|
||
warning ("duplicate interface declaration for class `%s'",
|
||
IDENTIFIER_POINTER (class_name));
|
||
else
|
||
add_class (class);
|
||
|
||
if (protocol_list)
|
||
CLASS_PROTOCOL_LIST (class)
|
||
= lookup_and_install_protocols (protocol_list);
|
||
}
|
||
|
||
else if (code == CATEGORY_INTERFACE_TYPE)
|
||
{
|
||
tree class_category_is_assoc_with;
|
||
|
||
/* For a category, class_name is really the name of the class that
|
||
the following set of methods will be associated with. We must
|
||
find the interface so that can derive the objects template. */
|
||
|
||
if (!(class_category_is_assoc_with = lookup_interface (class_name)))
|
||
{
|
||
error ("Cannot find interface declaration for `%s'",
|
||
IDENTIFIER_POINTER (class_name));
|
||
exit (FATAL_EXIT_CODE);
|
||
}
|
||
else
|
||
add_category (class_category_is_assoc_with, class);
|
||
|
||
if (protocol_list)
|
||
CLASS_PROTOCOL_LIST (class)
|
||
= lookup_and_install_protocols (protocol_list);
|
||
}
|
||
|
||
else if (code == CATEGORY_IMPLEMENTATION_TYPE)
|
||
{
|
||
/* Pre-build the following entities for speed/convenience. */
|
||
if (!self_id)
|
||
self_id = get_identifier ("self");
|
||
if (!ucmd_id)
|
||
ucmd_id = get_identifier ("_cmd");
|
||
if (!unused_list)
|
||
unused_list
|
||
= build_tree_list (get_identifier ("__unused__"), NULL_TREE);
|
||
if (!objc_super_template)
|
||
objc_super_template = build_super_template ();
|
||
|
||
/* Reset for multiple classes per file. */
|
||
method_slot = 0;
|
||
|
||
implementation_context = class;
|
||
|
||
/* For a category, class_name is really the name of the class that
|
||
the following set of methods will be associated with. We must
|
||
find the interface so that can derive the objects template. */
|
||
|
||
if (!(implementation_template = lookup_interface (class_name)))
|
||
{
|
||
error ("Cannot find interface declaration for `%s'",
|
||
IDENTIFIER_POINTER (class_name));
|
||
exit (FATAL_EXIT_CODE);
|
||
}
|
||
}
|
||
return class;
|
||
}
|
||
|
||
tree
|
||
continue_class (class)
|
||
tree class;
|
||
{
|
||
if (TREE_CODE (class) == CLASS_IMPLEMENTATION_TYPE
|
||
|| TREE_CODE (class) == CATEGORY_IMPLEMENTATION_TYPE)
|
||
{
|
||
struct imp_entry *imp_entry;
|
||
tree ivar_context;
|
||
|
||
/* Check consistency of the instance variables. */
|
||
|
||
if (CLASS_IVARS (class))
|
||
check_ivars (implementation_template, class);
|
||
|
||
/* code generation */
|
||
|
||
ivar_context = build_private_template (implementation_template);
|
||
|
||
if (!objc_class_template)
|
||
build_class_template ();
|
||
|
||
if (!(imp_entry
|
||
= (struct imp_entry *) xmalloc (sizeof (struct imp_entry))))
|
||
perror ("unable to allocate in objc-tree.c");
|
||
|
||
imp_entry->next = imp_list;
|
||
imp_entry->imp_context = class;
|
||
imp_entry->imp_template = implementation_template;
|
||
|
||
synth_forward_declarations ();
|
||
imp_entry->class_decl = UOBJC_CLASS_decl;
|
||
imp_entry->meta_decl = UOBJC_METACLASS_decl;
|
||
|
||
/* Append to front and increment count. */
|
||
imp_list = imp_entry;
|
||
if (TREE_CODE (class) == CLASS_IMPLEMENTATION_TYPE)
|
||
imp_count++;
|
||
else
|
||
cat_count++;
|
||
|
||
return ivar_context;
|
||
}
|
||
|
||
else if (TREE_CODE (class) == CLASS_INTERFACE_TYPE)
|
||
{
|
||
tree record = xref_tag (RECORD_TYPE, CLASS_NAME (class));
|
||
|
||
if (!TYPE_FIELDS (record))
|
||
{
|
||
finish_struct (record, build_ivar_chain (class, 0), NULL_TREE);
|
||
CLASS_STATIC_TEMPLATE (class) = record;
|
||
|
||
/* Mark this record as a class template for static typing. */
|
||
TREE_STATIC_TEMPLATE (record) = 1;
|
||
}
|
||
|
||
return NULL_TREE;
|
||
}
|
||
|
||
else
|
||
return error_mark_node;
|
||
}
|
||
|
||
/* This is called once we see the "@end" in an interface/implementation. */
|
||
|
||
void
|
||
finish_class (class)
|
||
tree class;
|
||
{
|
||
if (TREE_CODE (class) == CLASS_IMPLEMENTATION_TYPE)
|
||
{
|
||
/* All code generation is done in finish_objc. */
|
||
|
||
if (implementation_template != implementation_context)
|
||
{
|
||
/* Ensure that all method listed in the interface contain bodies. */
|
||
check_methods (CLASS_CLS_METHODS (implementation_template),
|
||
CLASS_CLS_METHODS (implementation_context), '+');
|
||
check_methods (CLASS_NST_METHODS (implementation_template),
|
||
CLASS_NST_METHODS (implementation_context), '-');
|
||
|
||
if (CLASS_PROTOCOL_LIST (implementation_template))
|
||
check_protocols (CLASS_PROTOCOL_LIST (implementation_template),
|
||
"class",
|
||
IDENTIFIER_POINTER (CLASS_NAME (implementation_context)));
|
||
}
|
||
}
|
||
|
||
else if (TREE_CODE (class) == CATEGORY_IMPLEMENTATION_TYPE)
|
||
{
|
||
tree category = CLASS_CATEGORY_LIST (implementation_template);
|
||
|
||
/* Find the category interface from the class it is associated with. */
|
||
while (category)
|
||
{
|
||
if (CLASS_SUPER_NAME (class) == CLASS_SUPER_NAME (category))
|
||
break;
|
||
category = CLASS_CATEGORY_LIST (category);
|
||
}
|
||
|
||
if (category)
|
||
{
|
||
/* Ensure all method listed in the interface contain bodies. */
|
||
check_methods (CLASS_CLS_METHODS (category),
|
||
CLASS_CLS_METHODS (implementation_context), '+');
|
||
check_methods (CLASS_NST_METHODS (category),
|
||
CLASS_NST_METHODS (implementation_context), '-');
|
||
|
||
if (CLASS_PROTOCOL_LIST (category))
|
||
check_protocols (CLASS_PROTOCOL_LIST (category),
|
||
"category",
|
||
IDENTIFIER_POINTER (CLASS_SUPER_NAME (implementation_context)));
|
||
}
|
||
}
|
||
|
||
else if (TREE_CODE (class) == CLASS_INTERFACE_TYPE)
|
||
{
|
||
tree decl_specs;
|
||
char *class_name = IDENTIFIER_POINTER (CLASS_NAME (class));
|
||
char *string = (char *) alloca (strlen (class_name) + 3);
|
||
|
||
/* extern struct objc_object *_<my_name>; */
|
||
|
||
sprintf (string, "_%s", class_name);
|
||
|
||
decl_specs = build_tree_list (NULL_TREE, ridpointers[(int) RID_EXTERN]);
|
||
decl_specs = tree_cons (NULL_TREE, objc_object_reference, decl_specs);
|
||
define_decl (build1 (INDIRECT_REF, NULL_TREE, get_identifier (string)),
|
||
decl_specs);
|
||
}
|
||
}
|
||
|
||
static tree
|
||
add_protocol (protocol)
|
||
tree protocol;
|
||
{
|
||
/* Put protocol on list in reverse order. */
|
||
TREE_CHAIN (protocol) = protocol_chain;
|
||
protocol_chain = protocol;
|
||
return protocol_chain;
|
||
}
|
||
|
||
static tree
|
||
lookup_protocol (ident)
|
||
tree ident;
|
||
{
|
||
tree chain;
|
||
|
||
for (chain = protocol_chain; chain; chain = TREE_CHAIN (chain))
|
||
{
|
||
if (ident == PROTOCOL_NAME (chain))
|
||
return chain;
|
||
}
|
||
|
||
return NULL_TREE;
|
||
}
|
||
|
||
tree
|
||
start_protocol (code, name, list)
|
||
enum tree_code code;
|
||
tree name;
|
||
tree list;
|
||
{
|
||
tree protocol;
|
||
|
||
if (!doing_objc_thang)
|
||
objc_fatal ();
|
||
|
||
/* This is as good a place as any. Need to invoke push_tag_toplevel. */
|
||
if (!objc_protocol_template)
|
||
objc_protocol_template = build_protocol_template ();
|
||
|
||
protocol = make_node (code);
|
||
TYPE_BINFO (protocol) = make_tree_vec (2);
|
||
|
||
PROTOCOL_NAME (protocol) = name;
|
||
PROTOCOL_LIST (protocol) = list;
|
||
|
||
lookup_and_install_protocols (list);
|
||
|
||
if (lookup_protocol (name))
|
||
warning ("duplicate declaration for protocol `%s'",
|
||
IDENTIFIER_POINTER (name));
|
||
else
|
||
add_protocol (protocol);
|
||
|
||
PROTOCOL_FORWARD_DECL (protocol) = NULL_TREE;
|
||
|
||
return protocol;
|
||
}
|
||
|
||
void
|
||
finish_protocol (protocol)
|
||
tree protocol;
|
||
{
|
||
}
|
||
|
||
|
||
/* "Encode" a data type into a string, which grows in util_obstack.
|
||
??? What is the FORMAT? Someone please document this! */
|
||
|
||
static void
|
||
encode_type_qualifiers (declspecs)
|
||
tree declspecs;
|
||
{
|
||
tree spec;
|
||
|
||
for (spec = declspecs; spec; spec = TREE_CHAIN (spec))
|
||
{
|
||
if (ridpointers[(int) RID_CONST] == TREE_VALUE (spec))
|
||
obstack_1grow (&util_obstack, 'r');
|
||
else if (ridpointers[(int) RID_IN] == TREE_VALUE (spec))
|
||
obstack_1grow (&util_obstack, 'n');
|
||
else if (ridpointers[(int) RID_INOUT] == TREE_VALUE (spec))
|
||
obstack_1grow (&util_obstack, 'N');
|
||
else if (ridpointers[(int) RID_OUT] == TREE_VALUE (spec))
|
||
obstack_1grow (&util_obstack, 'o');
|
||
else if (ridpointers[(int) RID_BYCOPY] == TREE_VALUE (spec))
|
||
obstack_1grow (&util_obstack, 'O');
|
||
else if (ridpointers[(int) RID_ONEWAY] == TREE_VALUE (spec))
|
||
obstack_1grow (&util_obstack, 'V');
|
||
}
|
||
}
|
||
|
||
/* Encode a pointer type. */
|
||
|
||
static void
|
||
encode_pointer (type, curtype, format)
|
||
tree type;
|
||
int curtype;
|
||
int format;
|
||
{
|
||
tree pointer_to = TREE_TYPE (type);
|
||
|
||
if (TREE_CODE (pointer_to) == RECORD_TYPE)
|
||
{
|
||
if (TYPE_NAME (pointer_to)
|
||
&& TREE_CODE (TYPE_NAME (pointer_to)) == IDENTIFIER_NODE)
|
||
{
|
||
char *name = IDENTIFIER_POINTER (TYPE_NAME (pointer_to));
|
||
|
||
if (strcmp (name, TAG_OBJECT) == 0) /* '@' */
|
||
{
|
||
obstack_1grow (&util_obstack, '@');
|
||
return;
|
||
}
|
||
else if (TREE_STATIC_TEMPLATE (pointer_to))
|
||
{
|
||
if (generating_instance_variables)
|
||
{
|
||
obstack_1grow (&util_obstack, '@');
|
||
obstack_1grow (&util_obstack, '"');
|
||
obstack_grow (&util_obstack, name, strlen (name));
|
||
obstack_1grow (&util_obstack, '"');
|
||
return;
|
||
}
|
||
else
|
||
{
|
||
obstack_1grow (&util_obstack, '@');
|
||
return;
|
||
}
|
||
}
|
||
else if (strcmp (name, TAG_CLASS) == 0) /* '#' */
|
||
{
|
||
obstack_1grow (&util_obstack, '#');
|
||
return;
|
||
}
|
||
#ifndef OBJC_INT_SELECTORS
|
||
else if (strcmp (name, TAG_SELECTOR) == 0) /* ':' */
|
||
{
|
||
obstack_1grow (&util_obstack, ':');
|
||
return;
|
||
}
|
||
#endif /* OBJC_INT_SELECTORS */
|
||
}
|
||
}
|
||
else if (TREE_CODE (pointer_to) == INTEGER_TYPE
|
||
&& TYPE_MODE (pointer_to) == QImode)
|
||
{
|
||
obstack_1grow (&util_obstack, '*');
|
||
return;
|
||
}
|
||
|
||
/* We have a type that does not get special treatment. */
|
||
|
||
/* NeXT extension */
|
||
obstack_1grow (&util_obstack, '^');
|
||
encode_type (pointer_to, curtype, format);
|
||
}
|
||
|
||
static void
|
||
encode_array (type, curtype, format)
|
||
tree type;
|
||
int curtype;
|
||
int format;
|
||
{
|
||
tree an_int_cst = TYPE_SIZE (type);
|
||
tree array_of = TREE_TYPE (type);
|
||
char buffer[40];
|
||
|
||
/* An incomplete array is treated like a pointer. */
|
||
if (an_int_cst == NULL)
|
||
{
|
||
encode_pointer (type, curtype, format);
|
||
return;
|
||
}
|
||
|
||
sprintf (buffer, "[%d",
|
||
(TREE_INT_CST_LOW (an_int_cst)
|
||
/ TREE_INT_CST_LOW (TYPE_SIZE (array_of))));
|
||
|
||
obstack_grow (&util_obstack, buffer, strlen (buffer));
|
||
encode_type (array_of, curtype, format);
|
||
obstack_1grow (&util_obstack, ']');
|
||
return;
|
||
}
|
||
|
||
static void
|
||
encode_aggregate (type, curtype, format)
|
||
tree type;
|
||
int curtype;
|
||
int format;
|
||
{
|
||
enum tree_code code = TREE_CODE (type);
|
||
|
||
switch (code)
|
||
{
|
||
case RECORD_TYPE:
|
||
{
|
||
if (obstack_object_size (&util_obstack) > 0
|
||
&& *(obstack_next_free (&util_obstack) - 1) == '^')
|
||
{
|
||
tree name = TYPE_NAME (type);
|
||
|
||
/* We have a reference; this is a NeXT extension. */
|
||
|
||
if (obstack_object_size (&util_obstack) - curtype == 1
|
||
&& format == OBJC_ENCODE_INLINE_DEFS)
|
||
{
|
||
/* Output format of struct for first level only. */
|
||
tree fields = TYPE_FIELDS (type);
|
||
|
||
if (name && TREE_CODE (name) == IDENTIFIER_NODE)
|
||
{
|
||
obstack_1grow (&util_obstack, '{');
|
||
obstack_grow (&util_obstack,
|
||
IDENTIFIER_POINTER (name),
|
||
strlen (IDENTIFIER_POINTER (name)));
|
||
obstack_1grow (&util_obstack, '=');
|
||
}
|
||
|
||
else
|
||
obstack_grow (&util_obstack, "{?=", 3);
|
||
|
||
for ( ; fields; fields = TREE_CHAIN (fields))
|
||
encode_field_decl (fields, curtype, format);
|
||
|
||
obstack_1grow (&util_obstack, '}');
|
||
}
|
||
|
||
else if (name && TREE_CODE (name) == IDENTIFIER_NODE)
|
||
{
|
||
obstack_1grow (&util_obstack, '{');
|
||
obstack_grow (&util_obstack,
|
||
IDENTIFIER_POINTER (name),
|
||
strlen (IDENTIFIER_POINTER (name)));
|
||
obstack_1grow (&util_obstack, '}');
|
||
}
|
||
|
||
else
|
||
/* We have an untagged structure or a typedef. */
|
||
obstack_grow (&util_obstack, "{?}", 3);
|
||
}
|
||
|
||
else
|
||
{
|
||
tree name = TYPE_NAME (type);
|
||
tree fields = TYPE_FIELDS (type);
|
||
|
||
if (format == OBJC_ENCODE_INLINE_DEFS
|
||
|| generating_instance_variables)
|
||
{
|
||
obstack_1grow (&util_obstack, '{');
|
||
if (name && TREE_CODE (name) == IDENTIFIER_NODE)
|
||
obstack_grow (&util_obstack,
|
||
IDENTIFIER_POINTER (name),
|
||
strlen (IDENTIFIER_POINTER (name)));
|
||
|
||
else
|
||
obstack_1grow (&util_obstack, '?');
|
||
|
||
obstack_1grow (&util_obstack, '=');
|
||
|
||
for (; fields; fields = TREE_CHAIN (fields))
|
||
{
|
||
if (generating_instance_variables)
|
||
{
|
||
tree fname = DECL_NAME (fields);
|
||
|
||
obstack_1grow (&util_obstack, '"');
|
||
if (fname && TREE_CODE (fname) == IDENTIFIER_NODE)
|
||
{
|
||
obstack_grow (&util_obstack,
|
||
IDENTIFIER_POINTER (fname),
|
||
strlen (IDENTIFIER_POINTER (fname)));
|
||
}
|
||
|
||
obstack_1grow (&util_obstack, '"');
|
||
}
|
||
|
||
encode_field_decl (fields, curtype, format);
|
||
}
|
||
|
||
obstack_1grow (&util_obstack, '}');
|
||
}
|
||
|
||
else
|
||
{
|
||
obstack_1grow (&util_obstack, '{');
|
||
if (name && TREE_CODE (name) == IDENTIFIER_NODE)
|
||
obstack_grow (&util_obstack,
|
||
IDENTIFIER_POINTER (name),
|
||
strlen (IDENTIFIER_POINTER (name)));
|
||
else
|
||
/* We have an untagged structure or a typedef. */
|
||
obstack_1grow (&util_obstack, '?');
|
||
|
||
obstack_1grow (&util_obstack, '}');
|
||
}
|
||
}
|
||
break;
|
||
}
|
||
|
||
case UNION_TYPE:
|
||
{
|
||
if (*obstack_next_free (&util_obstack) == '^'
|
||
|| format != OBJC_ENCODE_INLINE_DEFS)
|
||
{
|
||
/* We have a reference (this is a NeXT extension)
|
||
or we don't want the details. */
|
||
if (TYPE_NAME (type)
|
||
&& TREE_CODE (TYPE_NAME (type)) == IDENTIFIER_NODE)
|
||
{
|
||
obstack_1grow (&util_obstack, '(');
|
||
obstack_grow (&util_obstack,
|
||
IDENTIFIER_POINTER (TYPE_NAME (type)),
|
||
strlen (IDENTIFIER_POINTER (TYPE_NAME (type))));
|
||
obstack_1grow (&util_obstack, ')');
|
||
}
|
||
|
||
else
|
||
/* We have an untagged structure or a typedef. */
|
||
obstack_grow (&util_obstack, "(?)", 3);
|
||
}
|
||
else
|
||
{
|
||
tree fields = TYPE_FIELDS (type);
|
||
obstack_1grow (&util_obstack, '(');
|
||
for ( ; fields; fields = TREE_CHAIN (fields))
|
||
encode_field_decl (fields, curtype, format);
|
||
|
||
obstack_1grow (&util_obstack, ')');
|
||
}
|
||
break;
|
||
}
|
||
|
||
case ENUMERAL_TYPE:
|
||
obstack_1grow (&util_obstack, 'i');
|
||
break;
|
||
}
|
||
}
|
||
|
||
/* Support bitfields. The current version of Objective-C does not support
|
||
them. The string will consist of one or more "b:n"'s where n is an
|
||
integer describing the width of the bitfield. Currently, classes in
|
||
the kit implement a method "-(char *)describeBitfieldStruct:" that
|
||
simulates this. If they do not implement this method, the archiver
|
||
assumes the bitfield is 16 bits wide (padded if necessary) and packed
|
||
according to the GNU compiler. After looking at the "kit", it appears
|
||
that all classes currently rely on this default behavior, rather than
|
||
hand generating this string (which is tedious). */
|
||
|
||
static void
|
||
encode_bitfield (width, format)
|
||
int width;
|
||
int format;
|
||
{
|
||
char buffer[40];
|
||
sprintf (buffer, "b%d", width);
|
||
obstack_grow (&util_obstack, buffer, strlen (buffer));
|
||
}
|
||
|
||
/* FORMAT will be OBJC_ENCODE_INLINE_DEFS or OBJC_ENCODE_DONT_INLINE_DEFS. */
|
||
|
||
static void
|
||
encode_type (type, curtype, format)
|
||
tree type;
|
||
int curtype;
|
||
int format;
|
||
{
|
||
enum tree_code code = TREE_CODE (type);
|
||
|
||
if (code == INTEGER_TYPE)
|
||
{
|
||
if (TREE_INT_CST_LOW (TYPE_MIN_VALUE (type)) == 0
|
||
&& TREE_INT_CST_HIGH (TYPE_MIN_VALUE (type)) == 0)
|
||
{
|
||
/* Unsigned integer types. */
|
||
|
||
if (TYPE_MODE (type) == QImode)
|
||
obstack_1grow (&util_obstack, 'C');
|
||
else if (TYPE_MODE (type) == HImode)
|
||
obstack_1grow (&util_obstack, 'S');
|
||
else if (TYPE_MODE (type) == SImode)
|
||
{
|
||
if (type == long_unsigned_type_node)
|
||
obstack_1grow (&util_obstack, 'L');
|
||
else
|
||
obstack_1grow (&util_obstack, 'I');
|
||
}
|
||
else if (TYPE_MODE (type) == DImode)
|
||
obstack_1grow (&util_obstack, 'Q');
|
||
}
|
||
|
||
else
|
||
/* Signed integer types. */
|
||
{
|
||
if (TYPE_MODE (type) == QImode)
|
||
obstack_1grow (&util_obstack, 'c');
|
||
else if (TYPE_MODE (type) == HImode)
|
||
obstack_1grow (&util_obstack, 's');
|
||
else if (TYPE_MODE (type) == SImode)
|
||
{
|
||
if (type == long_integer_type_node)
|
||
obstack_1grow (&util_obstack, 'l');
|
||
else
|
||
obstack_1grow (&util_obstack, 'i');
|
||
}
|
||
|
||
else if (TYPE_MODE (type) == DImode)
|
||
obstack_1grow (&util_obstack, 'q');
|
||
}
|
||
}
|
||
|
||
else if (code == REAL_TYPE)
|
||
{
|
||
/* Floating point types. */
|
||
|
||
if (TYPE_MODE (type) == SFmode)
|
||
obstack_1grow (&util_obstack, 'f');
|
||
else if (TYPE_MODE (type) == DFmode
|
||
|| TYPE_MODE (type) == TFmode)
|
||
obstack_1grow (&util_obstack, 'd');
|
||
}
|
||
|
||
else if (code == VOID_TYPE)
|
||
obstack_1grow (&util_obstack, 'v');
|
||
|
||
else if (code == ARRAY_TYPE)
|
||
encode_array (type, curtype, format);
|
||
|
||
else if (code == POINTER_TYPE)
|
||
encode_pointer (type, curtype, format);
|
||
|
||
else if (code == RECORD_TYPE || code == UNION_TYPE || code == ENUMERAL_TYPE)
|
||
encode_aggregate (type, curtype, format);
|
||
|
||
else if (code == FUNCTION_TYPE) /* '?' */
|
||
obstack_1grow (&util_obstack, '?');
|
||
}
|
||
|
||
static void
|
||
encode_field_decl (field_decl, curtype, format)
|
||
tree field_decl;
|
||
int curtype;
|
||
int format;
|
||
{
|
||
tree type;
|
||
|
||
/* If this field is obviously a bitfield, or is a bitfield that has been
|
||
clobbered to look like a ordinary integer mode, go ahead and generate
|
||
the bitfield typing information. */
|
||
type = TREE_TYPE (field_decl);
|
||
if (DECL_BIT_FIELD (field_decl))
|
||
encode_bitfield (DECL_FIELD_SIZE (field_decl), format);
|
||
else if (TREE_CODE (TYPE_SIZE (type)) == INTEGER_CST
|
||
&& DECL_FIELD_SIZE (field_decl)
|
||
&& TYPE_MODE (type) > DECL_MODE (field_decl))
|
||
encode_bitfield (DECL_FIELD_SIZE (field_decl), format);
|
||
else
|
||
encode_type (TREE_TYPE (field_decl), curtype, format);
|
||
}
|
||
|
||
static tree
|
||
expr_last (complex_expr)
|
||
tree complex_expr;
|
||
{
|
||
tree next;
|
||
|
||
if (complex_expr)
|
||
while ((next = TREE_OPERAND (complex_expr, 0)))
|
||
complex_expr = next;
|
||
|
||
return complex_expr;
|
||
}
|
||
|
||
/* The selector of the current method,
|
||
or NULL if we aren't compiling a method. */
|
||
|
||
tree
|
||
maybe_objc_method_name (decl)
|
||
tree decl;
|
||
{
|
||
if (method_context)
|
||
return METHOD_SEL_NAME (method_context);
|
||
else
|
||
return 0;
|
||
}
|
||
|
||
/* Transform a method definition into a function definition as follows:
|
||
- synthesize the first two arguments, "self" and "_cmd". */
|
||
|
||
void
|
||
start_method_def (method)
|
||
tree method;
|
||
{
|
||
tree decl_specs;
|
||
|
||
/* Required to implement _msgSuper. */
|
||
method_context = method;
|
||
UOBJC_SUPER_decl = NULL_TREE;
|
||
|
||
/* Must be called BEFORE start_function. */
|
||
pushlevel (0);
|
||
|
||
/* Generate prototype declarations for arguments..."new-style". */
|
||
|
||
if (TREE_CODE (method_context) == INSTANCE_METHOD_DECL)
|
||
decl_specs = build_tree_list (NULL_TREE, uprivate_record);
|
||
else
|
||
/* Really a `struct objc_class *'. However, we allow people to
|
||
assign to self, which changes its type midstream. */
|
||
decl_specs = build_tree_list (NULL_TREE, objc_object_reference);
|
||
|
||
push_parm_decl (build_tree_list
|
||
(build_tree_list (decl_specs,
|
||
build1 (INDIRECT_REF, NULL_TREE, self_id)),
|
||
build_tree_list (unused_list, NULL_TREE)));
|
||
|
||
#ifdef OBJC_INT_SELECTORS
|
||
decl_specs = build_tree_list (NULL_TREE, ridpointers[(int) RID_UNSIGNED]);
|
||
decl_specs = tree_cons (NULL_TREE, ridpointers[(int) RID_INT], decl_specs);
|
||
push_parm_decl (build_tree_list (build_tree_list (decl_specs, ucmd_id),
|
||
build_tree_list (unused_list, NULL_TREE)));
|
||
#else /* not OBJC_INT_SELECTORS */
|
||
decl_specs = build_tree_list (NULL_TREE,
|
||
xref_tag (RECORD_TYPE,
|
||
get_identifier (TAG_SELECTOR)));
|
||
push_parm_decl (build_tree_list
|
||
(build_tree_list (decl_specs,
|
||
build1 (INDIRECT_REF, NULL_TREE, ucmd_id)),
|
||
build_tree_list (unused_list, NULL_TREE)));
|
||
#endif /* not OBJC_INT_SELECTORS */
|
||
|
||
/* Generate argument declarations if a keyword_decl. */
|
||
if (METHOD_SEL_ARGS (method))
|
||
{
|
||
tree arglist = METHOD_SEL_ARGS (method);
|
||
do
|
||
{
|
||
tree arg_spec = TREE_PURPOSE (TREE_TYPE (arglist));
|
||
tree arg_decl = TREE_VALUE (TREE_TYPE (arglist));
|
||
|
||
if (arg_decl)
|
||
{
|
||
tree last_expr = expr_last (arg_decl);
|
||
|
||
/* Unite the abstract decl with its name. */
|
||
TREE_OPERAND (last_expr, 0) = KEYWORD_ARG_NAME (arglist);
|
||
push_parm_decl (build_tree_list
|
||
(build_tree_list (arg_spec, arg_decl),
|
||
build_tree_list (NULL_TREE, NULL_TREE)));
|
||
|
||
/* Unhook: restore the abstract declarator. */
|
||
TREE_OPERAND (last_expr, 0) = NULL_TREE;
|
||
}
|
||
|
||
else
|
||
push_parm_decl (build_tree_list
|
||
(build_tree_list (arg_spec,
|
||
KEYWORD_ARG_NAME (arglist)),
|
||
build_tree_list (NULL_TREE, NULL_TREE)));
|
||
|
||
arglist = TREE_CHAIN (arglist);
|
||
}
|
||
while (arglist);
|
||
}
|
||
|
||
if (METHOD_ADD_ARGS (method) > (tree)1)
|
||
{
|
||
/* We have a variable length selector - in "prototype" format. */
|
||
tree akey = TREE_PURPOSE (METHOD_ADD_ARGS (method));
|
||
while (akey)
|
||
{
|
||
/* This must be done prior to calling pushdecl. pushdecl is
|
||
going to change our chain on us. */
|
||
tree nextkey = TREE_CHAIN (akey);
|
||
pushdecl (akey);
|
||
akey = nextkey;
|
||
}
|
||
}
|
||
}
|
||
|
||
static void
|
||
warn_with_method (message, mtype, method)
|
||
char *message;
|
||
int mtype;
|
||
tree method;
|
||
{
|
||
if (count_error (1) == 0)
|
||
return;
|
||
|
||
report_error_function (DECL_SOURCE_FILE (method));
|
||
|
||
fprintf (stderr, "%s:%d: warning: ",
|
||
DECL_SOURCE_FILE (method), DECL_SOURCE_LINE (method));
|
||
bzero (errbuf, BUFSIZE);
|
||
fprintf (stderr, "%s `%c%s'\n",
|
||
message, mtype, gen_method_decl (method, errbuf));
|
||
}
|
||
|
||
/* Return 1 if METHOD is consistent with PROTO. */
|
||
|
||
static int
|
||
comp_method_with_proto (method, proto)
|
||
tree method, proto;
|
||
{
|
||
static tree function_type = 0;
|
||
|
||
/* Create a function_type node once. */
|
||
if (!function_type)
|
||
{
|
||
push_obstacks_nochange ();
|
||
end_temporary_allocation ();
|
||
function_type = make_node (FUNCTION_TYPE);
|
||
pop_obstacks ();
|
||
}
|
||
|
||
/* Install argument types - normally set by build_function_type. */
|
||
TYPE_ARG_TYPES (function_type) = get_arg_type_list (proto, METHOD_DEF, 0);
|
||
|
||
/* install return type */
|
||
TREE_TYPE (function_type) = groktypename (TREE_TYPE (proto));
|
||
|
||
return comptypes (TREE_TYPE (METHOD_DEFINITION (method)), function_type);
|
||
}
|
||
|
||
/* Return 1 if PROTO1 is consistent with PROTO2. */
|
||
|
||
static int
|
||
comp_proto_with_proto (proto1, proto2)
|
||
tree proto1, proto2;
|
||
{
|
||
static tree function_type1 = 0, function_type2 = 0;
|
||
|
||
/* Create a couple function_type node's once. */
|
||
if (!function_type1)
|
||
{
|
||
push_obstacks_nochange ();
|
||
end_temporary_allocation ();
|
||
function_type1 = make_node (FUNCTION_TYPE);
|
||
function_type2 = make_node (FUNCTION_TYPE);
|
||
pop_obstacks ();
|
||
}
|
||
|
||
/* Install argument types; normally set by build_function_type. */
|
||
TYPE_ARG_TYPES (function_type1) = get_arg_type_list (proto1, METHOD_REF, 0);
|
||
TYPE_ARG_TYPES (function_type2) = get_arg_type_list (proto2, METHOD_REF, 0);
|
||
|
||
/* Install return type. */
|
||
TREE_TYPE (function_type1) = groktypename (TREE_TYPE (proto1));
|
||
TREE_TYPE (function_type2) = groktypename (TREE_TYPE (proto2));
|
||
|
||
return comptypes (function_type1, function_type2);
|
||
}
|
||
|
||
/* - Generate an identifier for the function. the format is "_n_cls",
|
||
where 1 <= n <= nMethods, and cls is the name the implementation we
|
||
are processing.
|
||
- Install the return type from the method declaration.
|
||
- If we have a prototype, check for type consistency. */
|
||
|
||
static void
|
||
really_start_method (method, parmlist)
|
||
tree method, parmlist;
|
||
{
|
||
tree sc_spec, ret_spec, ret_decl, decl_specs;
|
||
tree method_decl, method_id;
|
||
char *buf, *sel_name, *class_name, *cat_name;
|
||
|
||
/* Synth the storage class & assemble the return type. */
|
||
sc_spec = tree_cons (NULL_TREE, ridpointers[(int) RID_STATIC], NULL_TREE);
|
||
ret_spec = TREE_PURPOSE (TREE_TYPE (method));
|
||
decl_specs = chainon (sc_spec, ret_spec);
|
||
|
||
sel_name = IDENTIFIER_POINTER (METHOD_SEL_NAME (method));
|
||
class_name = IDENTIFIER_POINTER (CLASS_NAME (implementation_context));
|
||
cat_name = ((TREE_CODE (implementation_context)
|
||
== CLASS_IMPLEMENTATION_TYPE)
|
||
? NULL
|
||
: IDENTIFIER_POINTER (CLASS_SUPER_NAME (implementation_context)));
|
||
method_slot++;
|
||
|
||
/* Make sure this is big enough for any plausible method label. */
|
||
buf = (char *) alloca (50 + strlen (sel_name) + strlen (class_name)
|
||
+ (cat_name ? strlen (cat_name) : 0));
|
||
|
||
OBJC_GEN_METHOD_LABEL (buf, TREE_CODE (method) == INSTANCE_METHOD_DECL,
|
||
class_name, cat_name, sel_name, method_slot);
|
||
|
||
method_id = get_identifier (buf);
|
||
|
||
method_decl = build_nt (CALL_EXPR, method_id, parmlist, NULL_TREE);
|
||
|
||
/* Check the declarator portion of the return type for the method. */
|
||
if ((ret_decl = TREE_VALUE (TREE_TYPE (method))))
|
||
{
|
||
/* Unite the complex decl (specified in the abstract decl) with the
|
||
function decl just synthesized..(int *), (int (*)()), (int (*)[]). */
|
||
tree save_expr = expr_last (ret_decl);
|
||
|
||
TREE_OPERAND (save_expr, 0) = method_decl;
|
||
method_decl = ret_decl;
|
||
|
||
/* Fool the parser into thinking it is starting a function. */
|
||
start_function (decl_specs, method_decl, NULL_TREE, NULL_TREE, 0);
|
||
|
||
/* Unhook: this has the effect of restoring the abstract declarator. */
|
||
TREE_OPERAND (save_expr, 0) = NULL_TREE;
|
||
}
|
||
|
||
else
|
||
{
|
||
TREE_VALUE (TREE_TYPE (method)) = method_decl;
|
||
|
||
/* Fool the parser into thinking it is starting a function. */
|
||
start_function (decl_specs, method_decl, NULL_TREE, NULL_TREE, 0);
|
||
|
||
/* Unhook: this has the effect of restoring the abstract declarator. */
|
||
TREE_VALUE (TREE_TYPE (method)) = NULL_TREE;
|
||
}
|
||
|
||
METHOD_DEFINITION (method) = current_function_decl;
|
||
|
||
if (implementation_template != implementation_context)
|
||
{
|
||
tree proto;
|
||
|
||
if (TREE_CODE (method) == INSTANCE_METHOD_DECL)
|
||
proto = lookup_instance_method_static (implementation_template,
|
||
METHOD_SEL_NAME (method));
|
||
else
|
||
proto = lookup_class_method_static (implementation_template,
|
||
METHOD_SEL_NAME (method));
|
||
|
||
if (proto && ! comp_method_with_proto (method, proto))
|
||
{
|
||
char type = (TREE_CODE (method) == INSTANCE_METHOD_DECL ? '-' : '+');
|
||
|
||
warn_with_method ("conflicting types for", type, method);
|
||
warn_with_method ("previous declaration of", type, proto);
|
||
}
|
||
}
|
||
}
|
||
|
||
/* The following routine is always called...this "architecture" is to
|
||
accommodate "old-style" variable length selectors.
|
||
|
||
- a:a b:b // prototype ; id c; id d; // old-style. */
|
||
|
||
void
|
||
continue_method_def ()
|
||
{
|
||
tree parmlist;
|
||
|
||
if (METHOD_ADD_ARGS (method_context) == (tree)1)
|
||
/* We have a `, ...' immediately following the selector. */
|
||
parmlist = get_parm_info (0);
|
||
else
|
||
parmlist = get_parm_info (1); /* place a `void_at_end' */
|
||
|
||
/* Set self_decl from the first argument...this global is used by
|
||
build_ivar_reference calling build_indirect_ref. */
|
||
self_decl = TREE_PURPOSE (parmlist);
|
||
|
||
poplevel (0, 0, 0);
|
||
really_start_method (method_context, parmlist);
|
||
store_parm_decls ();
|
||
}
|
||
|
||
/* Called by the parser, from the `pushlevel' production. */
|
||
|
||
void
|
||
add_objc_decls ()
|
||
{
|
||
if (!UOBJC_SUPER_decl)
|
||
{
|
||
UOBJC_SUPER_decl = start_decl (get_identifier (UTAG_SUPER),
|
||
build_tree_list (NULL_TREE,
|
||
objc_super_template),
|
||
0, NULL_TREE, NULL_TREE);
|
||
|
||
finish_decl (UOBJC_SUPER_decl, NULL_TREE, NULL_TREE);
|
||
|
||
/* This prevents `unused variable' warnings when compiling with -Wall. */
|
||
TREE_USED (UOBJC_SUPER_decl) = 1;
|
||
DECL_ARTIFICIAL (UOBJC_SUPER_decl) = 1;
|
||
}
|
||
}
|
||
|
||
/* _n_Method (id self, SEL sel, ...)
|
||
{
|
||
struct objc_super _S;
|
||
_msgSuper ((_S.self = self, _S.class = _cls, &_S), ...);
|
||
} */
|
||
|
||
tree
|
||
get_super_receiver ()
|
||
{
|
||
if (method_context)
|
||
{
|
||
tree super_expr, super_expr_list;
|
||
|
||
/* Set receiver to self. */
|
||
super_expr = build_component_ref (UOBJC_SUPER_decl, self_id);
|
||
super_expr = build_modify_expr (super_expr, NOP_EXPR, self_decl);
|
||
super_expr_list = build_tree_list (NULL_TREE, super_expr);
|
||
|
||
/* Set class to begin searching. */
|
||
super_expr = build_component_ref (UOBJC_SUPER_decl,
|
||
get_identifier ("class"));
|
||
|
||
if (TREE_CODE (implementation_context) == CLASS_IMPLEMENTATION_TYPE)
|
||
{
|
||
/* [_cls, __cls]Super are "pre-built" in
|
||
synth_forward_declarations. */
|
||
|
||
super_expr = build_modify_expr (super_expr, NOP_EXPR,
|
||
((TREE_CODE (method_context)
|
||
== INSTANCE_METHOD_DECL)
|
||
? ucls_super_ref
|
||
: uucls_super_ref));
|
||
}
|
||
|
||
else
|
||
/* We have a category. */
|
||
{
|
||
tree super_name = CLASS_SUPER_NAME (implementation_template);
|
||
tree super_class;
|
||
|
||
if (!super_name)
|
||
{
|
||
error ("no super class declared in interface for `%s'",
|
||
IDENTIFIER_POINTER (CLASS_NAME (implementation_template)));
|
||
return error_mark_node;
|
||
}
|
||
|
||
if (flag_next_runtime)
|
||
{
|
||
super_class = get_class_reference (super_name);
|
||
if (TREE_CODE (method_context) == CLASS_METHOD_DECL)
|
||
super_class
|
||
= build_component_ref (build_indirect_ref (super_class, "->"),
|
||
get_identifier ("isa"));
|
||
}
|
||
else
|
||
{
|
||
add_class_reference (super_name);
|
||
super_class = (TREE_CODE (method_context) == INSTANCE_METHOD_DECL
|
||
? objc_get_class_decl : objc_get_meta_class_decl);
|
||
assemble_external (super_class);
|
||
super_class
|
||
= build_function_call
|
||
(super_class,
|
||
build_tree_list
|
||
(NULL_TREE,
|
||
my_build_string (IDENTIFIER_LENGTH (super_name) + 1,
|
||
IDENTIFIER_POINTER (super_name))));
|
||
}
|
||
|
||
TREE_TYPE (super_class) = TREE_TYPE (ucls_super_ref);
|
||
super_expr = build_modify_expr (super_expr, NOP_EXPR, super_class);
|
||
}
|
||
|
||
chainon (super_expr_list, build_tree_list (NULL_TREE, super_expr));
|
||
|
||
super_expr = build_unary_op (ADDR_EXPR, UOBJC_SUPER_decl, 0);
|
||
chainon (super_expr_list, build_tree_list (NULL_TREE, super_expr));
|
||
|
||
return build_compound_expr (super_expr_list);
|
||
}
|
||
else
|
||
{
|
||
error ("[super ...] must appear in a method context");
|
||
return error_mark_node;
|
||
}
|
||
}
|
||
|
||
static tree
|
||
encode_method_def (func_decl)
|
||
tree func_decl;
|
||
{
|
||
tree parms;
|
||
int stack_size;
|
||
int max_parm_end = 0;
|
||
char buffer[40];
|
||
tree result;
|
||
|
||
/* Return type. */
|
||
encode_type (TREE_TYPE (TREE_TYPE (func_decl)),
|
||
obstack_object_size (&util_obstack),
|
||
OBJC_ENCODE_INLINE_DEFS);
|
||
|
||
/* Stack size. */
|
||
for (parms = DECL_ARGUMENTS (func_decl); parms;
|
||
parms = TREE_CHAIN (parms))
|
||
{
|
||
int parm_end = (forwarding_offset (parms)
|
||
+ (TREE_INT_CST_LOW (TYPE_SIZE (TREE_TYPE (parms)))
|
||
/ BITS_PER_UNIT));
|
||
|
||
if (!offset_is_register && parm_end > max_parm_end)
|
||
max_parm_end = parm_end;
|
||
}
|
||
|
||
stack_size = max_parm_end - OBJC_FORWARDING_MIN_OFFSET;
|
||
|
||
sprintf (buffer, "%d", stack_size);
|
||
obstack_grow (&util_obstack, buffer, strlen (buffer));
|
||
|
||
/* Argument types. */
|
||
for (parms = DECL_ARGUMENTS (func_decl); parms;
|
||
parms = TREE_CHAIN (parms))
|
||
{
|
||
/* Type. */
|
||
encode_type (TREE_TYPE (parms),
|
||
obstack_object_size (&util_obstack),
|
||
OBJC_ENCODE_INLINE_DEFS);
|
||
|
||
/* Compute offset. */
|
||
sprintf (buffer, "%d", forwarding_offset (parms));
|
||
|
||
/* Indicate register. */
|
||
if (offset_is_register)
|
||
obstack_1grow (&util_obstack, '+');
|
||
|
||
obstack_grow (&util_obstack, buffer, strlen (buffer));
|
||
}
|
||
|
||
obstack_1grow (&util_obstack, 0);
|
||
result = get_identifier (obstack_finish (&util_obstack));
|
||
obstack_free (&util_obstack, util_firstobj);
|
||
return result;
|
||
}
|
||
|
||
void
|
||
finish_method_def ()
|
||
{
|
||
METHOD_ENCODING (method_context) = encode_method_def (current_function_decl);
|
||
|
||
finish_function (0);
|
||
|
||
/* Required to implement _msgSuper. This must be done AFTER finish_function,
|
||
since the optimizer may find "may be used before set" errors. */
|
||
method_context = NULL_TREE;
|
||
}
|
||
|
||
int
|
||
lang_report_error_function (decl)
|
||
tree decl;
|
||
{
|
||
if (method_context)
|
||
{
|
||
fprintf (stderr, "In method `%s'\n",
|
||
IDENTIFIER_POINTER (METHOD_SEL_NAME (method_context)));
|
||
return 1;
|
||
}
|
||
|
||
else
|
||
return 0;
|
||
}
|
||
|
||
static int
|
||
is_complex_decl (type)
|
||
tree type;
|
||
{
|
||
return (TREE_CODE (type) == ARRAY_TYPE
|
||
|| TREE_CODE (type) == FUNCTION_TYPE
|
||
|| (TREE_CODE (type) == POINTER_TYPE && ! IS_ID (type)));
|
||
}
|
||
|
||
|
||
/* Code to convert a decl node into text for a declaration in C. */
|
||
|
||
static char tmpbuf[256];
|
||
|
||
static void
|
||
adorn_decl (decl, str)
|
||
tree decl;
|
||
char *str;
|
||
{
|
||
enum tree_code code = TREE_CODE (decl);
|
||
|
||
if (code == ARRAY_REF)
|
||
{
|
||
tree an_int_cst = TREE_OPERAND (decl, 1);
|
||
|
||
if (an_int_cst && TREE_CODE (an_int_cst) == INTEGER_CST)
|
||
sprintf (str + strlen (str), "[%d]", TREE_INT_CST_LOW (an_int_cst));
|
||
else
|
||
strcat (str, "[]");
|
||
}
|
||
|
||
else if (code == ARRAY_TYPE)
|
||
{
|
||
tree an_int_cst = TYPE_SIZE (decl);
|
||
tree array_of = TREE_TYPE (decl);
|
||
|
||
if (an_int_cst && TREE_CODE (an_int_cst) == INTEGER_TYPE)
|
||
sprintf (str + strlen (str), "[%d]",
|
||
(TREE_INT_CST_LOW (an_int_cst)
|
||
/ TREE_INT_CST_LOW (TYPE_SIZE (array_of))));
|
||
else
|
||
strcat (str, "[]");
|
||
}
|
||
|
||
else if (code == CALL_EXPR)
|
||
{
|
||
tree chain = TREE_PURPOSE (TREE_OPERAND (decl, 1));
|
||
|
||
strcat (str, "(");
|
||
while (chain)
|
||
{
|
||
gen_declaration (chain, str);
|
||
chain = TREE_CHAIN (chain);
|
||
if (chain)
|
||
strcat (str, ", ");
|
||
}
|
||
strcat (str, ")");
|
||
}
|
||
|
||
else if (code == FUNCTION_TYPE)
|
||
{
|
||
tree chain = TYPE_ARG_TYPES (decl);
|
||
|
||
strcat (str, "(");
|
||
while (chain && TREE_VALUE (chain) != void_type_node)
|
||
{
|
||
gen_declaration (TREE_VALUE (chain), str);
|
||
chain = TREE_CHAIN (chain);
|
||
if (chain && TREE_VALUE (chain) != void_type_node)
|
||
strcat (str, ", ");
|
||
}
|
||
strcat (str, ")");
|
||
}
|
||
|
||
else if (code == INDIRECT_REF)
|
||
{
|
||
strcpy (tmpbuf, "*");
|
||
if (TREE_TYPE (decl) && TREE_CODE (TREE_TYPE (decl)) == TREE_LIST)
|
||
{
|
||
tree chain;
|
||
|
||
for (chain = nreverse (copy_list (TREE_TYPE (decl)));
|
||
chain;
|
||
chain = TREE_CHAIN (chain))
|
||
{
|
||
if (TREE_CODE (TREE_VALUE (chain)) == IDENTIFIER_NODE)
|
||
{
|
||
strcat (tmpbuf, " ");
|
||
strcat (tmpbuf, IDENTIFIER_POINTER (TREE_VALUE (chain)));
|
||
}
|
||
}
|
||
if (str[0])
|
||
strcat (tmpbuf, " ");
|
||
}
|
||
strcat (tmpbuf, str);
|
||
strcpy (str, tmpbuf);
|
||
}
|
||
|
||
else if (code == POINTER_TYPE)
|
||
{
|
||
strcpy (tmpbuf, "*");
|
||
if (TREE_READONLY (decl) || TYPE_VOLATILE (decl))
|
||
{
|
||
if (TREE_READONLY (decl))
|
||
strcat (tmpbuf, " const");
|
||
if (TYPE_VOLATILE (decl))
|
||
strcat (tmpbuf, " volatile");
|
||
if (str[0])
|
||
strcat (tmpbuf, " ");
|
||
}
|
||
strcat (tmpbuf, str);
|
||
strcpy (str, tmpbuf);
|
||
}
|
||
}
|
||
|
||
static char *
|
||
gen_declarator (decl, buf, name)
|
||
tree decl;
|
||
char *buf;
|
||
char *name;
|
||
{
|
||
if (decl)
|
||
{
|
||
enum tree_code code = TREE_CODE (decl);
|
||
char *str;
|
||
tree op;
|
||
int wrap = 0;
|
||
|
||
switch (code)
|
||
{
|
||
case ARRAY_REF:
|
||
case INDIRECT_REF:
|
||
case CALL_EXPR:
|
||
op = TREE_OPERAND (decl, 0);
|
||
|
||
/* We have a pointer to a function or array...(*)(), (*)[] */
|
||
if ((code == ARRAY_REF || code == CALL_EXPR)
|
||
&& op && TREE_CODE (op) == INDIRECT_REF)
|
||
wrap = 1;
|
||
|
||
str = gen_declarator (op, buf, name);
|
||
|
||
if (wrap)
|
||
{
|
||
strcpy (tmpbuf, "(");
|
||
strcat (tmpbuf, str);
|
||
strcat (tmpbuf, ")");
|
||
strcpy (str, tmpbuf);
|
||
}
|
||
|
||
adorn_decl (decl, str);
|
||
break;
|
||
|
||
case ARRAY_TYPE:
|
||
case FUNCTION_TYPE:
|
||
case POINTER_TYPE:
|
||
strcpy (buf, name);
|
||
str = buf;
|
||
|
||
/* This clause is done iteratively rather than recursively. */
|
||
do
|
||
{
|
||
op = (is_complex_decl (TREE_TYPE (decl))
|
||
? TREE_TYPE (decl) : NULL_TREE);
|
||
|
||
adorn_decl (decl, str);
|
||
|
||
/* We have a pointer to a function or array...(*)(), (*)[] */
|
||
if (code == POINTER_TYPE
|
||
&& op && (TREE_CODE (op) == FUNCTION_TYPE
|
||
|| TREE_CODE (op) == ARRAY_TYPE))
|
||
{
|
||
strcpy (tmpbuf, "(");
|
||
strcat (tmpbuf, str);
|
||
strcat (tmpbuf, ")");
|
||
strcpy (str, tmpbuf);
|
||
}
|
||
|
||
decl = (is_complex_decl (TREE_TYPE (decl))
|
||
? TREE_TYPE (decl) : NULL_TREE);
|
||
}
|
||
|
||
while (decl && (code = TREE_CODE (decl)))
|
||
;
|
||
|
||
break;
|
||
|
||
case IDENTIFIER_NODE:
|
||
/* Will only happen if we are processing a "raw" expr-decl. */
|
||
strcpy (buf, IDENTIFIER_POINTER (decl));
|
||
return buf;
|
||
}
|
||
|
||
return str;
|
||
}
|
||
|
||
else
|
||
/* We have an abstract declarator or a _DECL node. */
|
||
{
|
||
strcpy (buf, name);
|
||
return buf;
|
||
}
|
||
}
|
||
|
||
static void
|
||
gen_declspecs (declspecs, buf, raw)
|
||
tree declspecs;
|
||
char *buf;
|
||
int raw;
|
||
{
|
||
if (raw)
|
||
{
|
||
tree chain;
|
||
|
||
for (chain = nreverse (copy_list (declspecs));
|
||
chain; chain = TREE_CHAIN (chain))
|
||
{
|
||
tree aspec = TREE_VALUE (chain);
|
||
|
||
if (TREE_CODE (aspec) == IDENTIFIER_NODE)
|
||
strcat (buf, IDENTIFIER_POINTER (aspec));
|
||
else if (TREE_CODE (aspec) == RECORD_TYPE)
|
||
{
|
||
if (TYPE_NAME (aspec))
|
||
{
|
||
tree protocol_list = TYPE_PROTOCOL_LIST (aspec);
|
||
|
||
if (! TREE_STATIC_TEMPLATE (aspec))
|
||
strcat (buf, "struct ");
|
||
strcat (buf, IDENTIFIER_POINTER (TYPE_NAME (aspec)));
|
||
|
||
/* NEW!!! */
|
||
if (protocol_list)
|
||
{
|
||
tree chain = protocol_list;
|
||
|
||
strcat (buf, " <");
|
||
while (chain)
|
||
{
|
||
strcat (buf,
|
||
IDENTIFIER_POINTER
|
||
(PROTOCOL_NAME (TREE_VALUE (chain))));
|
||
chain = TREE_CHAIN (chain);
|
||
if (chain)
|
||
strcat (buf, ", ");
|
||
}
|
||
strcat (buf, ">");
|
||
}
|
||
}
|
||
|
||
else
|
||
strcat (buf, "untagged struct");
|
||
}
|
||
|
||
else if (TREE_CODE (aspec) == UNION_TYPE)
|
||
{
|
||
if (TYPE_NAME (aspec))
|
||
{
|
||
if (! TREE_STATIC_TEMPLATE (aspec))
|
||
strcat (buf, "union ");
|
||
strcat (buf, IDENTIFIER_POINTER (TYPE_NAME (aspec)));
|
||
}
|
||
else
|
||
strcat (buf, "untagged union");
|
||
}
|
||
|
||
else if (TREE_CODE (aspec) == ENUMERAL_TYPE)
|
||
{
|
||
if (TYPE_NAME (aspec))
|
||
{
|
||
if (! TREE_STATIC_TEMPLATE (aspec))
|
||
strcat (buf, "enum ");
|
||
strcat (buf, IDENTIFIER_POINTER (TYPE_NAME (aspec)));
|
||
}
|
||
else
|
||
strcat (buf, "untagged enum");
|
||
}
|
||
|
||
else if (TREE_CODE (aspec) == TYPE_DECL && DECL_NAME (aspec))
|
||
strcat (buf, IDENTIFIER_POINTER (DECL_NAME (aspec)));
|
||
|
||
else if (IS_ID (aspec))
|
||
{
|
||
tree protocol_list = TYPE_PROTOCOL_LIST (aspec);
|
||
|
||
strcat (buf, "id");
|
||
if (protocol_list)
|
||
{
|
||
tree chain = protocol_list;
|
||
|
||
strcat (buf, " <");
|
||
while (chain)
|
||
{
|
||
strcat (buf,
|
||
IDENTIFIER_POINTER
|
||
(PROTOCOL_NAME (TREE_VALUE (chain))));
|
||
chain = TREE_CHAIN (chain);
|
||
if (chain)
|
||
strcat (buf, ", ");
|
||
}
|
||
strcat (buf, ">");
|
||
}
|
||
}
|
||
if (TREE_CHAIN (chain))
|
||
strcat (buf, " ");
|
||
}
|
||
}
|
||
else
|
||
{
|
||
/* Type qualifiers. */
|
||
if (TREE_READONLY (declspecs))
|
||
strcat (buf, "const ");
|
||
if (TYPE_VOLATILE (declspecs))
|
||
strcat (buf, "volatile ");
|
||
|
||
switch (TREE_CODE (declspecs))
|
||
{
|
||
/* Type specifiers. */
|
||
|
||
case INTEGER_TYPE:
|
||
declspecs = TYPE_MAIN_VARIANT (declspecs);
|
||
|
||
/* Signed integer types. */
|
||
|
||
if (declspecs == short_integer_type_node)
|
||
strcat (buf, "short int ");
|
||
else if (declspecs == integer_type_node)
|
||
strcat (buf, "int ");
|
||
else if (declspecs == long_integer_type_node)
|
||
strcat (buf, "long int ");
|
||
else if (declspecs == long_long_integer_type_node)
|
||
strcat (buf, "long long int ");
|
||
else if (declspecs == signed_char_type_node
|
||
|| declspecs == char_type_node)
|
||
strcat (buf, "char ");
|
||
|
||
/* Unsigned integer types. */
|
||
|
||
else if (declspecs == short_unsigned_type_node)
|
||
strcat (buf, "unsigned short ");
|
||
else if (declspecs == unsigned_type_node)
|
||
strcat (buf, "unsigned int ");
|
||
else if (declspecs == long_unsigned_type_node)
|
||
strcat (buf, "unsigned long ");
|
||
else if (declspecs == long_long_unsigned_type_node)
|
||
strcat (buf, "unsigned long long ");
|
||
else if (declspecs == unsigned_char_type_node)
|
||
strcat (buf, "unsigned char ");
|
||
break;
|
||
|
||
case REAL_TYPE:
|
||
declspecs = TYPE_MAIN_VARIANT (declspecs);
|
||
|
||
if (declspecs == float_type_node)
|
||
strcat (buf, "float ");
|
||
else if (declspecs == double_type_node)
|
||
strcat (buf, "double ");
|
||
else if (declspecs == long_double_type_node)
|
||
strcat (buf, "long double ");
|
||
break;
|
||
|
||
case RECORD_TYPE:
|
||
if (TYPE_NAME (declspecs)
|
||
&& TREE_CODE (TYPE_NAME (declspecs)) == IDENTIFIER_NODE)
|
||
{
|
||
tree protocol_list = TYPE_PROTOCOL_LIST (declspecs);
|
||
|
||
if (! TREE_STATIC_TEMPLATE (declspecs))
|
||
strcat (buf, "struct ");
|
||
strcat (buf, IDENTIFIER_POINTER (TYPE_NAME (declspecs)));
|
||
|
||
if (protocol_list)
|
||
{
|
||
tree chain = protocol_list;
|
||
|
||
strcat (buf, " <");
|
||
while (chain)
|
||
{
|
||
strcat (buf,
|
||
IDENTIFIER_POINTER
|
||
(PROTOCOL_NAME (TREE_VALUE (chain))));
|
||
chain = TREE_CHAIN (chain);
|
||
if (chain)
|
||
strcat (buf, ", ");
|
||
}
|
||
strcat (buf, ">");
|
||
}
|
||
}
|
||
|
||
else
|
||
strcat (buf, "untagged struct");
|
||
|
||
strcat (buf, " ");
|
||
break;
|
||
|
||
case UNION_TYPE:
|
||
if (TYPE_NAME (declspecs)
|
||
&& TREE_CODE (TYPE_NAME (declspecs)) == IDENTIFIER_NODE)
|
||
{
|
||
strcat (buf, "union ");
|
||
strcat (buf, IDENTIFIER_POINTER (TYPE_NAME (declspecs)));
|
||
strcat (buf, " ");
|
||
}
|
||
|
||
else
|
||
strcat (buf, "untagged union ");
|
||
break;
|
||
|
||
case ENUMERAL_TYPE:
|
||
if (TYPE_NAME (declspecs)
|
||
&& TREE_CODE (TYPE_NAME (declspecs)) == IDENTIFIER_NODE)
|
||
{
|
||
strcat (buf, "enum ");
|
||
strcat (buf, IDENTIFIER_POINTER (TYPE_NAME (declspecs)));
|
||
strcat (buf, " ");
|
||
}
|
||
|
||
else
|
||
strcat (buf, "untagged enum ");
|
||
break;
|
||
|
||
case VOID_TYPE:
|
||
strcat (buf, "void ");
|
||
break;
|
||
|
||
case POINTER_TYPE:
|
||
{
|
||
tree protocol_list = TYPE_PROTOCOL_LIST (declspecs);
|
||
|
||
strcat (buf, "id");
|
||
if (protocol_list)
|
||
{
|
||
tree chain = protocol_list;
|
||
|
||
strcat (buf, " <");
|
||
while (chain)
|
||
{
|
||
strcat (buf,
|
||
IDENTIFIER_POINTER
|
||
(PROTOCOL_NAME (TREE_VALUE (chain))));
|
||
chain = TREE_CHAIN (chain);
|
||
if (chain)
|
||
strcat (buf, ", ");
|
||
}
|
||
|
||
strcat (buf, ">");
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
static char *
|
||
gen_declaration (atype_or_adecl, buf)
|
||
tree atype_or_adecl;
|
||
char *buf;
|
||
{
|
||
char declbuf[256];
|
||
|
||
if (TREE_CODE (atype_or_adecl) == TREE_LIST)
|
||
{
|
||
tree declspecs; /* "identifier_node", "record_type" */
|
||
tree declarator; /* "array_ref", "indirect_ref", "call_expr"... */
|
||
|
||
/* We have a "raw", abstract declarator (typename). */
|
||
declarator = TREE_VALUE (atype_or_adecl);
|
||
declspecs = TREE_PURPOSE (atype_or_adecl);
|
||
|
||
gen_declspecs (declspecs, buf, 1);
|
||
if (declarator)
|
||
{
|
||
strcat (buf, " ");
|
||
strcat (buf, gen_declarator (declarator, declbuf, ""));
|
||
}
|
||
}
|
||
|
||
else
|
||
{
|
||
tree atype;
|
||
tree declspecs; /* "integer_type", "real_type", "record_type"... */
|
||
tree declarator; /* "array_type", "function_type", "pointer_type". */
|
||
|
||
if (TREE_CODE (atype_or_adecl) == FIELD_DECL
|
||
|| TREE_CODE (atype_or_adecl) == PARM_DECL
|
||
|| TREE_CODE (atype_or_adecl) == FUNCTION_DECL)
|
||
atype = TREE_TYPE (atype_or_adecl);
|
||
else
|
||
/* Assume we have a *_type node. */
|
||
atype = atype_or_adecl;
|
||
|
||
if (is_complex_decl (atype))
|
||
{
|
||
tree chain;
|
||
|
||
/* Get the declaration specifier; it is at the end of the list. */
|
||
declarator = chain = atype;
|
||
do
|
||
chain = TREE_TYPE (chain); /* not TREE_CHAIN (chain); */
|
||
while (is_complex_decl (chain));
|
||
declspecs = chain;
|
||
}
|
||
|
||
else
|
||
{
|
||
declspecs = atype;
|
||
declarator = NULL_TREE;
|
||
}
|
||
|
||
gen_declspecs (declspecs, buf, 0);
|
||
|
||
if (TREE_CODE (atype_or_adecl) == FIELD_DECL
|
||
|| TREE_CODE (atype_or_adecl) == PARM_DECL
|
||
|| TREE_CODE (atype_or_adecl) == FUNCTION_DECL)
|
||
{
|
||
char *decl_name = (DECL_NAME (atype_or_adecl)
|
||
? IDENTIFIER_POINTER (DECL_NAME (atype_or_adecl))
|
||
: "");
|
||
|
||
if (declarator)
|
||
{
|
||
strcat (buf, " ");
|
||
strcat (buf, gen_declarator (declarator, declbuf, decl_name));
|
||
}
|
||
|
||
else if (decl_name[0])
|
||
{
|
||
strcat (buf, " ");
|
||
strcat (buf, decl_name);
|
||
}
|
||
}
|
||
else if (declarator)
|
||
{
|
||
strcat (buf, " ");
|
||
strcat (buf, gen_declarator (declarator, declbuf, ""));
|
||
}
|
||
}
|
||
|
||
return buf;
|
||
}
|
||
|
||
#define RAW_TYPESPEC(meth) (TREE_VALUE (TREE_PURPOSE (TREE_TYPE (meth))))
|
||
|
||
static char *
|
||
gen_method_decl (method, buf)
|
||
tree method;
|
||
char *buf;
|
||
{
|
||
tree chain;
|
||
|
||
if (RAW_TYPESPEC (method) != objc_object_reference)
|
||
{
|
||
strcpy (buf, "(");
|
||
gen_declaration (TREE_TYPE (method), buf);
|
||
strcat (buf, ")");
|
||
}
|
||
|
||
chain = METHOD_SEL_ARGS (method);
|
||
if (chain)
|
||
{
|
||
/* We have a chain of keyword_decls. */
|
||
do
|
||
{
|
||
if (KEYWORD_KEY_NAME (chain))
|
||
strcat (buf, IDENTIFIER_POINTER (KEYWORD_KEY_NAME (chain)));
|
||
|
||
strcat (buf, ":");
|
||
if (RAW_TYPESPEC (chain) != objc_object_reference)
|
||
{
|
||
strcat (buf, "(");
|
||
gen_declaration (TREE_TYPE (chain), buf);
|
||
strcat (buf, ")");
|
||
}
|
||
|
||
strcat (buf, IDENTIFIER_POINTER (KEYWORD_ARG_NAME (chain)));
|
||
if ((chain = TREE_CHAIN (chain)))
|
||
strcat (buf, " ");
|
||
}
|
||
while (chain);
|
||
|
||
if (METHOD_ADD_ARGS (method) == (tree)1)
|
||
strcat (buf, ", ...");
|
||
else if (METHOD_ADD_ARGS (method))
|
||
{
|
||
/* We have a tree list node as generate by get_parm_info. */
|
||
chain = TREE_PURPOSE (METHOD_ADD_ARGS (method));
|
||
|
||
/* Know we have a chain of parm_decls. */
|
||
while (chain)
|
||
{
|
||
strcat (buf, ", ");
|
||
gen_declaration (chain, buf);
|
||
chain = TREE_CHAIN (chain);
|
||
}
|
||
}
|
||
}
|
||
|
||
else
|
||
/* We have a unary selector. */
|
||
strcat (buf, IDENTIFIER_POINTER (METHOD_SEL_NAME (method)));
|
||
|
||
return buf;
|
||
}
|
||
|
||
/* Debug info. */
|
||
|
||
static void
|
||
dump_interface (fp, chain)
|
||
FILE *fp;
|
||
tree chain;
|
||
{
|
||
char *buf = (char *)xmalloc (256);
|
||
char *my_name = IDENTIFIER_POINTER (CLASS_NAME (chain));
|
||
tree ivar_decls = CLASS_RAW_IVARS (chain);
|
||
tree nst_methods = CLASS_NST_METHODS (chain);
|
||
tree cls_methods = CLASS_CLS_METHODS (chain);
|
||
|
||
fprintf (fp, "\n@interface %s", my_name);
|
||
|
||
if (CLASS_SUPER_NAME (chain))
|
||
{
|
||
char *super_name = IDENTIFIER_POINTER (CLASS_SUPER_NAME (chain));
|
||
fprintf (fp, " : %s\n", super_name);
|
||
}
|
||
else
|
||
fprintf (fp, "\n");
|
||
|
||
if (ivar_decls)
|
||
{
|
||
fprintf (fp, "{\n");
|
||
do
|
||
{
|
||
bzero (buf, 256);
|
||
fprintf (fp, "\t%s;\n", gen_declaration (ivar_decls, buf));
|
||
ivar_decls = TREE_CHAIN (ivar_decls);
|
||
}
|
||
while (ivar_decls);
|
||
fprintf (fp, "}\n");
|
||
}
|
||
|
||
while (nst_methods)
|
||
{
|
||
bzero (buf, 256);
|
||
fprintf (fp, "- %s;\n", gen_method_decl (nst_methods, buf));
|
||
nst_methods = TREE_CHAIN (nst_methods);
|
||
}
|
||
|
||
while (cls_methods)
|
||
{
|
||
bzero (buf, 256);
|
||
fprintf (fp, "+ %s;\n", gen_method_decl (cls_methods, buf));
|
||
cls_methods = TREE_CHAIN (cls_methods);
|
||
}
|
||
fprintf (fp, "\n@end");
|
||
}
|
||
|
||
static void
|
||
init_objc ()
|
||
{
|
||
/* Add the special tree codes of Objective C to the tables. */
|
||
|
||
#define LAST_CODE LAST_AND_UNUSED_TREE_CODE
|
||
|
||
gcc_obstack_init (&util_obstack);
|
||
util_firstobj = (char *) obstack_finish (&util_obstack);
|
||
|
||
tree_code_type
|
||
= (char **) xrealloc (tree_code_type,
|
||
sizeof (char *) * LAST_OBJC_TREE_CODE);
|
||
tree_code_length
|
||
= (int *) xrealloc (tree_code_length,
|
||
sizeof (int) * LAST_OBJC_TREE_CODE);
|
||
tree_code_name
|
||
= (char **) xrealloc (tree_code_name,
|
||
sizeof (char *) * LAST_OBJC_TREE_CODE);
|
||
bcopy ((char *) objc_tree_code_type,
|
||
(char *) (tree_code_type + (int) LAST_CODE),
|
||
(((int) LAST_OBJC_TREE_CODE - (int) LAST_CODE)
|
||
* sizeof (char *)));
|
||
bcopy ((char *) objc_tree_code_length,
|
||
(char *) (tree_code_length + (int) LAST_CODE),
|
||
(((int) LAST_OBJC_TREE_CODE - (int) LAST_CODE)
|
||
* sizeof (int)));
|
||
bcopy ((char *) objc_tree_code_name,
|
||
(char *) (tree_code_name + (int) LAST_CODE),
|
||
(((int) LAST_OBJC_TREE_CODE - (int) LAST_CODE)
|
||
* sizeof (char *)));
|
||
|
||
errbuf = (char *)xmalloc (BUFSIZE);
|
||
hash_init ();
|
||
synth_module_prologue ();
|
||
}
|
||
|
||
static void
|
||
finish_objc ()
|
||
{
|
||
struct imp_entry *impent;
|
||
tree chain;
|
||
/* The internally generated initializers appear to have missing braces.
|
||
Don't warn about this. */
|
||
int save_warn_missing_braces = warn_missing_braces;
|
||
warn_missing_braces = 0;
|
||
|
||
generate_forward_declaration_to_string_table ();
|
||
|
||
#ifdef OBJC_PROLOGUE
|
||
OBJC_PROLOGUE;
|
||
#endif
|
||
|
||
if (implementation_context || class_names_chain
|
||
|| meth_var_names_chain || meth_var_types_chain || sel_ref_chain)
|
||
generate_objc_symtab_decl ();
|
||
|
||
for (impent = imp_list; impent; impent = impent->next)
|
||
{
|
||
implementation_context = impent->imp_context;
|
||
implementation_template = impent->imp_template;
|
||
|
||
UOBJC_CLASS_decl = impent->class_decl;
|
||
UOBJC_METACLASS_decl = impent->meta_decl;
|
||
|
||
if (TREE_CODE (implementation_context) == CLASS_IMPLEMENTATION_TYPE)
|
||
{
|
||
/* all of the following reference the string pool... */
|
||
generate_ivar_lists ();
|
||
generate_dispatch_tables ();
|
||
generate_shared_structures ();
|
||
}
|
||
else
|
||
{
|
||
generate_dispatch_tables ();
|
||
generate_category (implementation_context);
|
||
}
|
||
}
|
||
|
||
/* If we are using an array of selectors, we must always
|
||
finish up the array decl even if no selectors were used. */
|
||
if (! flag_next_runtime || sel_ref_chain)
|
||
build_selector_translation_table ();
|
||
|
||
if (protocol_chain)
|
||
generate_protocols ();
|
||
|
||
if (objc_static_instances)
|
||
generate_static_references ();
|
||
|
||
if (implementation_context || class_names_chain || objc_static_instances
|
||
|| meth_var_names_chain || meth_var_types_chain || sel_ref_chain)
|
||
{
|
||
/* Arrange for Objc data structures to be initialized at run time. */
|
||
char *init_name = build_module_descriptor ();
|
||
if (init_name)
|
||
assemble_constructor (init_name);
|
||
}
|
||
|
||
/* Dump the class references. This forces the appropriate classes
|
||
to be linked into the executable image, preserving unix archive
|
||
semantics. This can be removed when we move to a more dynamically
|
||
linked environment. */
|
||
|
||
for (chain = cls_ref_chain; chain; chain = TREE_CHAIN (chain))
|
||
{
|
||
handle_class_ref (chain);
|
||
if (TREE_PURPOSE (chain))
|
||
generate_classref_translation_entry (chain);
|
||
}
|
||
|
||
for (impent = imp_list; impent; impent = impent->next)
|
||
handle_impent (impent);
|
||
|
||
/* Dump the string table last. */
|
||
|
||
generate_strings ();
|
||
|
||
if (flag_gen_declaration)
|
||
{
|
||
add_class (implementation_context);
|
||
dump_interface (gen_declaration_file, implementation_context);
|
||
}
|
||
|
||
if (warn_selector)
|
||
{
|
||
int slot;
|
||
hash hsh;
|
||
|
||
/* Run through the selector hash tables and print a warning for any
|
||
selector which has multiple methods. */
|
||
|
||
for (slot = 0; slot < SIZEHASHTABLE; slot++)
|
||
for (hsh = cls_method_hash_list[slot]; hsh; hsh = hsh->next)
|
||
if (hsh->list)
|
||
{
|
||
tree meth = hsh->key;
|
||
char type = (TREE_CODE (meth) == INSTANCE_METHOD_DECL
|
||
? '-' : '+');
|
||
attr loop;
|
||
|
||
warning ("potential selector conflict for method `%s'",
|
||
IDENTIFIER_POINTER (METHOD_SEL_NAME (meth)));
|
||
warn_with_method ("found", type, meth);
|
||
for (loop = hsh->list; loop; loop = loop->next)
|
||
warn_with_method ("found", type, loop->value);
|
||
}
|
||
|
||
for (slot = 0; slot < SIZEHASHTABLE; slot++)
|
||
for (hsh = nst_method_hash_list[slot]; hsh; hsh = hsh->next)
|
||
if (hsh->list)
|
||
{
|
||
tree meth = hsh->key;
|
||
char type = (TREE_CODE (meth) == INSTANCE_METHOD_DECL
|
||
? '-' : '+');
|
||
attr loop;
|
||
|
||
warning ("potential selector conflict for method `%s'",
|
||
IDENTIFIER_POINTER (METHOD_SEL_NAME (meth)));
|
||
warn_with_method ("found", type, meth);
|
||
for (loop = hsh->list; loop; loop = loop->next)
|
||
warn_with_method ("found", type, loop->value);
|
||
}
|
||
}
|
||
|
||
warn_missing_braces = save_warn_missing_braces;
|
||
}
|
||
|
||
/* Subroutines of finish_objc. */
|
||
|
||
static void
|
||
generate_classref_translation_entry (chain)
|
||
tree chain;
|
||
{
|
||
tree expr, name, decl_specs, decl, sc_spec;
|
||
tree type;
|
||
|
||
type = TREE_TYPE (TREE_PURPOSE (chain));
|
||
|
||
expr = add_objc_string (TREE_VALUE (chain), class_names);
|
||
expr = build_c_cast (type, expr); /* cast! */
|
||
|
||
name = DECL_NAME (TREE_PURPOSE (chain));
|
||
|
||
sc_spec = build_tree_list (NULL_TREE, ridpointers[(int) RID_STATIC]);
|
||
|
||
/* static struct objc_class * _OBJC_CLASS_REFERENCES_n = ...; */
|
||
decl_specs = tree_cons (NULL_TREE, type, sc_spec);
|
||
|
||
/* The decl that is returned from start_decl is the one that we
|
||
forward declared in build_class_reference. */
|
||
decl = start_decl (name, decl_specs, 1, NULL_TREE, NULL_TREE);
|
||
finish_decl (decl, expr, NULL_TREE);
|
||
return;
|
||
}
|
||
|
||
static void
|
||
handle_class_ref (chain)
|
||
tree chain;
|
||
{
|
||
char *name = IDENTIFIER_POINTER (TREE_VALUE (chain));
|
||
if (! flag_next_runtime)
|
||
{
|
||
tree decl;
|
||
char *string = (char *) alloca (strlen (name) + 30);
|
||
tree exp;
|
||
|
||
sprintf (string, "%sobjc_class_name_%s",
|
||
(flag_next_runtime ? "." : "__"), name);
|
||
|
||
/* Make a decl for this name, so we can use its address in a tree. */
|
||
decl = build_decl (VAR_DECL, get_identifier (string), char_type_node);
|
||
DECL_EXTERNAL (decl) = 1;
|
||
TREE_PUBLIC (decl) = 1;
|
||
|
||
pushdecl (decl);
|
||
rest_of_decl_compilation (decl, 0, 0, 0);
|
||
|
||
/* Make following constant read-only (why not)? */
|
||
readonly_data_section ();
|
||
|
||
exp = build1 (ADDR_EXPR, string_type_node, decl);
|
||
|
||
/* Align the section properly. */
|
||
assemble_constant_align (exp);
|
||
|
||
/* Inform the assembler about this new external thing. */
|
||
assemble_external (decl);
|
||
|
||
/* Output a constant to reference this address. */
|
||
output_constant (exp, int_size_in_bytes (string_type_node));
|
||
}
|
||
else
|
||
{
|
||
/* This overreliance on our assembler (i.e. lack of portability)
|
||
should be dealt with at some point. The GNU strategy (above)
|
||
won't work either, but it is a start. */
|
||
char *string = (char *) alloca (strlen (name) + 30);
|
||
sprintf (string, ".reference .objc_class_name_%s", name);
|
||
assemble_asm (my_build_string (strlen (string) + 1, string));
|
||
}
|
||
}
|
||
|
||
static void
|
||
handle_impent (impent)
|
||
struct imp_entry *impent;
|
||
{
|
||
implementation_context = impent->imp_context;
|
||
implementation_template = impent->imp_template;
|
||
|
||
if (TREE_CODE (impent->imp_context) == CLASS_IMPLEMENTATION_TYPE)
|
||
{
|
||
char *class_name = IDENTIFIER_POINTER (CLASS_NAME (impent->imp_context));
|
||
char *string = (char *) alloca (strlen (class_name) + 30);
|
||
|
||
if (flag_next_runtime)
|
||
{
|
||
/* Grossly unportable.
|
||
People should know better than to assume
|
||
such things about assembler syntax! */
|
||
sprintf (string, ".objc_class_name_%s=0", class_name);
|
||
assemble_asm (my_build_string (strlen (string) + 1, string));
|
||
|
||
sprintf (string, ".globl .objc_class_name_%s", class_name);
|
||
assemble_asm (my_build_string (strlen (string) + 1, string));
|
||
}
|
||
|
||
else
|
||
{
|
||
sprintf (string, "%sobjc_class_name_%s",
|
||
(flag_next_runtime ? "." : "__"), class_name);
|
||
assemble_global (string);
|
||
assemble_label (string);
|
||
}
|
||
}
|
||
|
||
else if (TREE_CODE (impent->imp_context) == CATEGORY_IMPLEMENTATION_TYPE)
|
||
{
|
||
char *class_name = IDENTIFIER_POINTER (CLASS_NAME (impent->imp_context));
|
||
char *class_super_name
|
||
= IDENTIFIER_POINTER (CLASS_SUPER_NAME (impent->imp_context));
|
||
char *string = (char *) alloca (strlen (class_name)
|
||
+ strlen (class_super_name) + 30);
|
||
|
||
/* Do the same for categories. Even though no references to these
|
||
symbols are generated automatically by the compiler, it gives
|
||
you a handle to pull them into an archive by hand. */
|
||
if (flag_next_runtime)
|
||
{
|
||
/* Grossly unportable. */
|
||
sprintf (string, ".objc_category_name_%s_%s=0",
|
||
class_name, class_super_name);
|
||
assemble_asm (my_build_string (strlen (string) + 1, string));
|
||
|
||
sprintf (string, ".globl .objc_category_name_%s_%s",
|
||
class_name, class_super_name);
|
||
assemble_asm (my_build_string (strlen (string) + 1, string));
|
||
}
|
||
|
||
else
|
||
{
|
||
sprintf (string, "%sobjc_category_name_%s_%s",
|
||
(flag_next_runtime ? "." : "__"),
|
||
class_name, class_super_name);
|
||
assemble_global (string);
|
||
assemble_label (string);
|
||
}
|
||
}
|
||
}
|
||
|
||
#ifdef DEBUG
|
||
|
||
static void
|
||
objc_debug (fp)
|
||
FILE *fp;
|
||
{
|
||
char *buf = (char *)xmalloc (256);
|
||
|
||
{ /* dump function prototypes */
|
||
tree loop = UOBJC_MODULES_decl;
|
||
|
||
fprintf (fp, "\n\nfunction prototypes:\n");
|
||
while (loop)
|
||
{
|
||
if (TREE_CODE (loop) == FUNCTION_DECL && DECL_INITIAL (loop))
|
||
{
|
||
/* We have a function definition: generate prototype. */
|
||
bzero (errbuf, BUFSIZE);
|
||
gen_declaration (loop, errbuf);
|
||
fprintf (fp, "%s;\n", errbuf);
|
||
}
|
||
loop = TREE_CHAIN (loop);
|
||
}
|
||
}
|
||
{
|
||
/* Dump global chains. */
|
||
tree loop;
|
||
int i, index = 0, offset = 0;
|
||
hash hashlist;
|
||
|
||
for (i = 0; i < SIZEHASHTABLE; i++)
|
||
{
|
||
if (hashlist = nst_method_hash_list[i])
|
||
{
|
||
fprintf (fp, "\n\nnst_method_hash_list[%d]:\n", i);
|
||
do
|
||
{
|
||
bzero (buf, 256);
|
||
fprintf (fp, "-%s;\n", gen_method_decl (hashlist->key, buf));
|
||
hashlist = hashlist->next;
|
||
}
|
||
while (hashlist);
|
||
}
|
||
}
|
||
|
||
for (i = 0; i < SIZEHASHTABLE; i++)
|
||
{
|
||
if (hashlist = cls_method_hash_list[i])
|
||
{
|
||
fprintf (fp, "\n\ncls_method_hash_list[%d]:\n", i);
|
||
do
|
||
{
|
||
bzero (buf, 256);
|
||
fprintf (fp, "-%s;\n", gen_method_decl (hashlist->key, buf));
|
||
hashlist = hashlist->next;
|
||
}
|
||
while (hashlist);
|
||
}
|
||
}
|
||
|
||
fprintf (fp, "\nsel_refdef_chain:\n");
|
||
for (loop = sel_refdef_chain; loop; loop = TREE_CHAIN (loop))
|
||
{
|
||
fprintf (fp, "(index: %4d offset: %4d) %s\n", index, offset,
|
||
IDENTIFIER_POINTER (TREE_VALUE (loop)));
|
||
index++;
|
||
/* add one for the '\0' character */
|
||
offset += IDENTIFIER_LENGTH (TREE_VALUE (loop)) + 1;
|
||
}
|
||
|
||
fprintf (fp, "\n (max_selector_index: %4d.\n", max_selector_index);
|
||
}
|
||
}
|
||
#endif
|
||
|
||
void
|
||
print_lang_statistics ()
|
||
{
|
||
}
|