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objc-act.c: Add/fix various comments.

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* objc/objc-act.c: Add/fix various comments.
	(init_selector): Remove, no longer used.
	(build_msg_pool_reference): Ditto.
	(objc_debug): Ditto.

From-SVN: r42666
This commit is contained in:
Stan Shebs 2001-05-28 01:01:10 +00:00 committed by Stan Shebs
parent 84b7783609
commit 81d87bcc58
2 changed files with 15 additions and 120 deletions
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7
gcc/ChangeLog
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@ -1,3 +1,10 @@
2001-05-27 Stan Shebs <shebs@apple.com>
* objc/objc-act.c: Add/fix various comments.
(init_selector): Remove, no longer used.
(build_msg_pool_reference): Ditto.
(objc_debug): Ditto.
2001-05-27 Neil Booth <neil@daikokuya.demon.co.uk>
* c-decl.c (init_decl_processing):

128
gcc/objc/objc-act.c
View File

@ -87,8 +87,7 @@ Boston, MA 02111-1307, USA. */
/* Define the special tree codes that we use. */
/* Table indexed by tree code giving a string containing a character
classifying the tree code. Possibilities are
t, d, s, c, r, <, 1 and 2. See objc-tree.def for details. */
classifying the tree code. */
#define DEFTREECODE(SYM, NAME, TYPE, LENGTH) TYPE,
@ -136,9 +135,14 @@ char *util_firstobj;
/* for encode_method_def */
#include "rtl.h"
/* The version identifies which language generation and runtime
the module (file) was compiled for, and is recorded in the
module descriptor. */
#define OBJC_VERSION (flag_next_runtime ? 5 : 8)
#define PROTOCOL_VERSION 2
/* (Decide if these can ever be validly changed.) */
#define OBJC_ENCODE_INLINE_DEFS 0
#define OBJC_ENCODE_DONT_INLINE_DEFS 1
@ -191,9 +195,6 @@ static tree generate_protocol_list PARAMS ((tree));
static void generate_forward_declaration_to_string_table PARAMS ((void));
static void build_protocol_reference PARAMS ((tree));
#if 0
static tree init_selector PARAMS ((int));
#endif
static tree build_keyword_selector PARAMS ((tree));
static tree synth_id_with_class_suffix PARAMS ((const char *, tree));
@ -297,9 +298,6 @@ static tree init_objc_symtab PARAMS ((tree));
static void forward_declare_categories PARAMS ((void));
static void generate_objc_symtab_decl PARAMS ((void));
static tree build_selector PARAMS ((tree));
#if 0
static tree build_msg_pool_reference PARAMS ((int));
#endif
static tree build_typed_selector_reference PARAMS ((tree, tree));
static tree build_selector_reference PARAMS ((tree));
static tree build_class_reference_decl PARAMS ((void));
@ -674,7 +672,7 @@ generate_struct_by_value_array ()
int aggregate_in_mem[32];
int found = 0;
/* Presumbaly no platform passes 32 byte structures in a register. */
/* Presumably no platform passes 32 byte structures in a register. */
for (i = 1; i < 32; i++)
{
char buffer[5];
@ -2147,39 +2145,6 @@ build_selector (ident)
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. */
#if 0
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;
}
#endif
static void
build_selector_translation_table ()
{
@ -2425,13 +2390,7 @@ get_class_reference (ident)
}
}
/* 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
/* For each string section we have a chain which maps identifier nodes
to decls for the strings. */
static tree
@ -8517,77 +8476,6 @@ handle_impent (impent)
}
}
#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. */
fprintf (fp, "%s;\n", gen_declaration (loop, 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
{
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
{
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 ()
{