/* YACC parser for C syntax and for Objective C. -*-c-*-
Copyright (C) 1987, 1988, 1989, 1992, 1993, 1994, 1995, 1996,
- 1997, 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
+ 1997, 1998, 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
-This file is part of GNU CC.
+This file is part of GCC.
-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.
+GCC 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,
-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.
+GCC is distributed in the hope that it will be useful, 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. */
+along with GCC; see the file COPYING. If not, write to the Free
+Software Foundation, 59 Temple Place - Suite 330, Boston, MA
+02111-1307, USA. */
/* This file defines the grammar of C and that of Objective C.
ifobjc ... end ifobjc conditionals contain code for Objective C only.
/* To whomever it may concern: I have heard that such a thing was once
written by AT&T, but I have never seen it. */
-ifobjc
-%expect 31 /* shift/reduce conflicts, and 1 reduce/reduce conflict. */
-end ifobjc
ifc
%expect 10 /* shift/reduce conflicts, and no reduce/reduce conflicts. */
end ifc
%{
#include "config.h"
#include "system.h"
-#include <setjmp.h>
+#include "coretypes.h"
+#include "tm.h"
#include "tree.h"
#include "input.h"
#include "cpplib.h"
#include "intl.h"
#include "timevar.h"
-#include "c-lex.h"
+#include "c-pragma.h" /* For YYDEBUG definition, and parse_in. */
#include "c-tree.h"
-#include "c-pragma.h"
#include "flags.h"
+#include "varray.h"
#include "output.h"
#include "toplev.h"
#include "ggc.h"
-#include "diagnostic.h"
-
+
#ifdef MULTIBYTE_CHARS
#include <locale.h>
#endif
#include "objc-act.h"
end ifobjc
-/* Since parsers are distinct for each language, put the language string
- definition here. */
-ifobjc
-const char * const language_string = "GNU Objective-C";
-end ifobjc
-ifc
-const char * const language_string = "GNU C";
-end ifc
-
/* Like YYERROR but do call yyerror. */
#define YYERROR1 { yyerror ("syntax error"); YYERROR; }
-/* Cause the "yydebug" variable to be defined. */
-#define YYDEBUG 1
-
-/* Rename the "yyparse" function so that we can override it elsewhere. */
-#define yyparse yyparse_1
+/* Like the default stack expander, except (1) use realloc when possible,
+ (2) impose no hard maxiumum on stack size, (3) REALLY do not use alloca.
+
+ Irritatingly, YYSTYPE is defined after this %{ %} block, so we cannot
+ give malloced_yyvs its proper type. This is ok since all we need from
+ it is to be able to free it. */
+
+static short *malloced_yyss;
+static void *malloced_yyvs;
+
+#define yyoverflow(MSG, SS, SSSIZE, VS, VSSIZE, YYSSZ) \
+do { \
+ size_t newsize; \
+ short *newss; \
+ YYSTYPE *newvs; \
+ newsize = *(YYSSZ) *= 2; \
+ if (malloced_yyss) \
+ { \
+ newss = (short *) \
+ really_call_realloc (*(SS), newsize * sizeof (short)); \
+ newvs = (YYSTYPE *) \
+ really_call_realloc (*(VS), newsize * sizeof (YYSTYPE)); \
+ } \
+ else \
+ { \
+ newss = (short *) really_call_malloc (newsize * sizeof (short)); \
+ newvs = (YYSTYPE *) really_call_malloc (newsize * sizeof (YYSTYPE)); \
+ if (newss) \
+ memcpy (newss, *(SS), (SSSIZE)); \
+ if (newvs) \
+ memcpy (newvs, *(VS), (VSSIZE)); \
+ } \
+ if (!newss || !newvs) \
+ { \
+ yyerror (MSG); \
+ return 2; \
+ } \
+ *(SS) = newss; \
+ *(VS) = newvs; \
+ malloced_yyss = newss; \
+ malloced_yyvs = (void *) newvs; \
+} while (0)
%}
%start program
/* Reserved words that specify storage class.
yylval contains an IDENTIFIER_NODE which indicates which one. */
-%token SCSPEC
+%token SCSPEC /* Storage class other than static. */
+%token STATIC /* Static storage class. */
/* Reserved words that specify type.
yylval contains an IDENTIFIER_NODE which indicates which one. */
/* String constants in raw form.
yylval is a STRING_CST node. */
+
%token STRING
/* "...", used for functions with variable arglists. */
%token SIZEOF ENUM STRUCT UNION IF ELSE WHILE DO FOR SWITCH CASE DEFAULT
%token BREAK CONTINUE RETURN GOTO ASM_KEYWORD TYPEOF ALIGNOF
%token ATTRIBUTE EXTENSION LABEL
-%token REALPART IMAGPART VA_ARG
+%token REALPART IMAGPART VA_ARG CHOOSE_EXPR TYPES_COMPATIBLE_P
%token PTR_VALUE PTR_BASE PTR_EXTENT
/* function name can be a string const or a var decl. */
%type <ttype> BREAK CONTINUE RETURN GOTO ASM_KEYWORD SIZEOF TYPEOF ALIGNOF
%type <ttype> identifier IDENTIFIER TYPENAME CONSTANT expr nonnull_exprlist exprlist
-%type <ttype> expr_no_commas cast_expr unary_expr primary string STRING
+%type <ttype> expr_no_commas cast_expr unary_expr primary STRING
%type <ttype> declspecs_nosc_nots_nosa_noea declspecs_nosc_nots_nosa_ea
%type <ttype> declspecs_nosc_nots_sa_noea declspecs_nosc_nots_sa_ea
%type <ttype> declspecs_nosc_ts_nosa_noea declspecs_nosc_ts_nosa_ea
%type <ttype> declspecs_ts declspecs_nots
%type <ttype> declspecs_ts_nosa declspecs_nots_nosa
%type <ttype> declspecs_nosc_ts declspecs_nosc_nots declspecs_nosc declspecs
-%type <ttype> maybe_type_quals_setattrs typespec_nonattr typespec_attr
+%type <ttype> maybe_type_quals_attrs typespec_nonattr typespec_attr
%type <ttype> typespec_reserved_nonattr typespec_reserved_attr
%type <ttype> typespec_nonreserved_nonattr
-%type <ttype> SCSPEC TYPESPEC TYPE_QUAL maybe_type_qual
+%type <ttype> scspec SCSPEC STATIC TYPESPEC TYPE_QUAL maybe_type_qual
%type <ttype> initdecls notype_initdecls initdcl notype_initdcl
%type <ttype> init maybeasm
%type <ttype> asm_operands nonnull_asm_operands asm_operand asm_clobbers
%type <ttype> maybe_attribute attributes attribute attribute_list attrib
-%type <ttype> maybe_setattrs
%type <ttype> any_word extension
%type <ttype> compstmt compstmt_start compstmt_nostart compstmt_primary_start
end ifobjc
\f
%{
-/* Number of statements (loosely speaking) and compound statements
+/* Number of statements (loosely speaking) and compound statements
seen so far. */
static int stmt_count;
static int compstmt_count;
-
-/* Input file and line number of the end of the body of last simple_if;
+
+/* Input location of the end of the body of last simple_if;
used by the stmt-rule immediately after simple_if returns. */
-static const char *if_stmt_file;
-static int if_stmt_line;
+static location_t if_stmt_locus;
+
/* List of types and structure classes of the current declaration. */
-static tree current_declspecs = NULL_TREE;
-static tree prefix_attributes = NULL_TREE;
+static GTY(()) tree current_declspecs;
+static GTY(()) tree prefix_attributes;
/* List of all the attributes applying to the identifier currently being
declared; includes prefix_attributes and possibly some more attributes
just after a comma. */
-static tree all_prefix_attributes = NULL_TREE;
+static GTY(()) tree all_prefix_attributes;
/* Stack of saved values of current_declspecs, prefix_attributes and
all_prefix_attributes. */
-static tree declspec_stack;
+static GTY(()) tree declspec_stack;
/* PUSH_DECLSPEC_STACK is called from setspecs; POP_DECLSPEC_STACK
should be called from the productions making use of setspecs. */
/* For __extension__, save/restore the warning flags which are
controlled by __extension__. */
-#define SAVE_WARN_FLAGS() \
- size_int (pedantic | (warn_pointer_arith << 1))
-#define RESTORE_WARN_FLAGS(tval) \
- do { \
- int val = tree_low_cst (tval, 0); \
- pedantic = val & 1; \
- warn_pointer_arith = (val >> 1) & 1; \
+#define SAVE_EXT_FLAGS() \
+ size_int (pedantic \
+ | (warn_pointer_arith << 1) \
+ | (warn_traditional << 2) \
+ | (flag_iso << 3))
+
+#define RESTORE_EXT_FLAGS(tval) \
+ do { \
+ int val = tree_low_cst (tval, 0); \
+ pedantic = val & 1; \
+ warn_pointer_arith = (val >> 1) & 1; \
+ warn_traditional = (val >> 2) & 1; \
+ flag_iso = (val >> 3) & 1; \
} while (0)
ifobjc
-/* Objective-C specific information */
-
-tree objc_interface_context;
-tree objc_implementation_context;
-tree objc_method_context;
-tree objc_ivar_chain;
-tree objc_ivar_context;
-enum tree_code objc_inherit_code;
-int objc_receiver_context;
-int objc_public_flag;
-int objc_pq_context;
+/* Objective-C specific parser/lexer information */
+
+static enum tree_code objc_inherit_code;
+static int objc_pq_context = 0, objc_public_flag = 0;
/* The following flag is needed to contextualize ObjC lexical analysis.
- In some cases (e.g., 'int NSObject;'), it is undesirable to bind
- an identifier to an ObjC class, even if a class with that name
+ In some cases (e.g., 'int NSObject;'), it is undesirable to bind
+ an identifier to an ObjC class, even if a class with that name
exists. */
-int objc_need_raw_identifier;
+static int objc_need_raw_identifier;
#define OBJC_NEED_RAW_IDENTIFIER(VAL) objc_need_raw_identifier = VAL
end ifobjc
#define OBJC_NEED_RAW_IDENTIFIER(VAL) /* nothing */
end ifc
+static bool parsing_iso_function_signature;
+
/* Tell yyparse how to print a token's value, if yydebug is set. */
#define YYPRINT(FILE,YYCHAR,YYLVAL) yyprint(FILE,YYCHAR,YYLVAL)
static void yyprint PARAMS ((FILE *, int, YYSTYPE));
static void yyerror PARAMS ((const char *));
static int yylexname PARAMS ((void));
+static int yylexstring PARAMS ((void));
static inline int _yylex PARAMS ((void));
static int yylex PARAMS ((void));
static void init_reswords PARAMS ((void));
-/* Add GC roots for variables local to this file. */
+ /* Initialisation routine for this file. */
void
c_parse_init ()
{
- ggc_add_tree_root (&declspec_stack, 1);
- ggc_add_tree_root (¤t_declspecs, 1);
- ggc_add_tree_root (&prefix_attributes, 1);
- ggc_add_tree_root (&all_prefix_attributes, 1);
-ifobjc
- ggc_add_tree_root (&objc_interface_context, 1);
- ggc_add_tree_root (&objc_implementation_context, 1);
- ggc_add_tree_root (&objc_method_context, 1);
- ggc_add_tree_root (&objc_ivar_chain, 1);
- ggc_add_tree_root (&objc_ivar_context, 1);
-end ifobjc
+ init_reswords ();
}
%}
get us back to the global binding level. */
while (! global_bindings_p ())
poplevel (0, 0, 0);
-ifc
+ /* __FUNCTION__ is defined at file scope (""). This
+ call may not be necessary as my tests indicate it
+ still works without it. */
finish_fname_decls ();
-end ifc
finish_file ();
}
;
;
extdef:
+ extdef_1
+ { parsing_iso_function_signature = false; } /* Reset after any external definition. */
+ ;
+
+extdef_1:
fndef
| datadef
ifobjc
else
error ("argument of `asm' is not a constant string"); }
| extension extdef
- { RESTORE_WARN_FLAGS ($1); }
+ { RESTORE_EXT_FLAGS ($1); }
;
datadef:
setspecs notype_initdecls ';'
{ if (pedantic)
error ("ISO C forbids data definition with no type or storage class");
- else if (!flag_traditional)
- warning ("data definition has no type or storage class");
+ else
+ warning ("data definition has no type or storage class");
POP_DECLSPEC_STACK; }
| declspecs_nots setspecs notype_initdecls ';'
save_filename save_lineno compstmt_or_error
{ DECL_SOURCE_FILE (current_function_decl) = $7;
DECL_SOURCE_LINE (current_function_decl) = $8;
- finish_function (0);
+ finish_function (0, 1);
POP_DECLSPEC_STACK; }
| declspecs_ts setspecs declarator error
{ POP_DECLSPEC_STACK; }
save_filename save_lineno compstmt_or_error
{ DECL_SOURCE_FILE (current_function_decl) = $7;
DECL_SOURCE_LINE (current_function_decl) = $8;
- finish_function (0);
+ finish_function (0, 1);
POP_DECLSPEC_STACK; }
| declspecs_nots setspecs notype_declarator error
{ POP_DECLSPEC_STACK; }
save_filename save_lineno compstmt_or_error
{ DECL_SOURCE_FILE (current_function_decl) = $6;
DECL_SOURCE_LINE (current_function_decl) = $7;
- finish_function (0);
+ finish_function (0, 1);
POP_DECLSPEC_STACK; }
| setspecs notype_declarator error
{ POP_DECLSPEC_STACK; }
/* __extension__ turns off -pedantic for following primary. */
| extension cast_expr %prec UNARY
{ $$ = $2;
- RESTORE_WARN_FLAGS ($1); }
+ RESTORE_EXT_FLAGS ($1); }
| unop cast_expr %prec UNARY
{ $$ = build_unary_op ($1, $2, 0);
overflow_warning ($$); }
/* Refer to the address of a label as a pointer. */
| ANDAND identifier
{ $$ = finish_label_address_expr ($2); }
-/* This seems to be impossible on some machines, so let's turn it off.
- You can use __builtin_next_arg to find the anonymous stack args.
- | '&' ELLIPSIS
- { tree types = TYPE_ARG_TYPES (TREE_TYPE (current_function_decl));
- $$ = error_mark_node;
- if (TREE_VALUE (tree_last (types)) == void_type_node)
- error ("`&...' used in function with fixed number of arguments");
- else
- {
- if (pedantic)
- pedwarn ("ISO C forbids `&...'");
- $$ = tree_last (DECL_ARGUMENTS (current_function_decl));
- $$ = build_unary_op (ADDR_EXPR, $$, 0);
- } }
-*/
| sizeof unary_expr %prec UNARY
{ skip_evaluation--;
if (TREE_CODE ($2) == COMPONENT_REF
ALIGNOF { skip_evaluation++; }
;
+typeof:
+ TYPEOF { skip_evaluation++; }
+ ;
+
cast_expr:
unary_expr
| '(' typename ')' cast_expr %prec UNARY
| expr_no_commas '^' expr_no_commas
{ $$ = parser_build_binary_op ($2, $1, $3); }
| expr_no_commas ANDAND
- { $1 = truthvalue_conversion (default_conversion ($1));
+ { $1 = c_common_truthvalue_conversion
+ (default_conversion ($1));
skip_evaluation += $1 == boolean_false_node; }
expr_no_commas
{ skip_evaluation -= $1 == boolean_false_node;
$$ = parser_build_binary_op (TRUTH_ANDIF_EXPR, $1, $4); }
| expr_no_commas OROR
- { $1 = truthvalue_conversion (default_conversion ($1));
+ { $1 = c_common_truthvalue_conversion
+ (default_conversion ($1));
skip_evaluation += $1 == boolean_true_node; }
expr_no_commas
{ skip_evaluation -= $1 == boolean_true_node;
$$ = parser_build_binary_op (TRUTH_ORIF_EXPR, $1, $4); }
| expr_no_commas '?'
- { $1 = truthvalue_conversion (default_conversion ($1));
+ { $1 = c_common_truthvalue_conversion
+ (default_conversion ($1));
skip_evaluation += $1 == boolean_false_node; }
expr ':'
{ skip_evaluation += (($1 == boolean_true_node)
pedwarn ("ISO C forbids omitting the middle term of a ?: expression");
/* Make sure first operand is calculated only once. */
$<ttype>2 = save_expr ($1);
- $1 = truthvalue_conversion (default_conversion ($<ttype>2));
+ $1 = c_common_truthvalue_conversion
+ (default_conversion ($<ttype>2));
skip_evaluation += $1 == boolean_true_node; }
':' expr_no_commas
{ skip_evaluation -= $1 == boolean_true_node;
{ char class;
$$ = build_modify_expr ($1, NOP_EXPR, $3);
class = TREE_CODE_CLASS (TREE_CODE ($$));
- if (class == 'e' || class == '1'
- || class == '2' || class == '<')
+ if (IS_EXPR_CODE_CLASS (class))
C_SET_EXP_ORIGINAL_CODE ($$, MODIFY_EXPR);
}
| expr_no_commas ASSIGN expr_no_commas
{ char class;
$$ = build_modify_expr ($1, $2, $3);
- /* This inhibits warnings in truthvalue_conversion. */
+ /* This inhibits warnings in
+ c_common_truthvalue_conversion. */
class = TREE_CODE_CLASS (TREE_CODE ($$));
- if (class == 'e' || class == '1'
- || class == '2' || class == '<')
+ if (IS_EXPR_CODE_CLASS (class))
C_SET_EXP_ORIGINAL_CODE ($$, ERROR_MARK);
}
;
$$ = build_external_ref ($1, yychar == '(');
}
| CONSTANT
- | string
- { $$ = combine_strings ($1); }
+ | STRING
+ { $$ = fix_string_type ($$); }
| VAR_FUNC_NAME
{ $$ = fname_decl (C_RID_CODE ($$), $$); }
- | '(' typename ')' '{'
+ | '(' typename ')' '{'
{ start_init (NULL_TREE, NULL, 0);
$2 = groktypename ($2);
really_start_incremental_init ($2); }
initlist_maybe_comma '}' %prec UNARY
- { const char *name;
- tree result = pop_init_level (0);
+ { tree constructor = pop_init_level (0);
tree type = $2;
finish_init ();
if (pedantic && ! flag_isoc99)
pedwarn ("ISO C89 forbids compound literals");
- if (TYPE_NAME (type) != 0)
- {
- if (TREE_CODE (TYPE_NAME (type)) == IDENTIFIER_NODE)
- name = IDENTIFIER_POINTER (TYPE_NAME (type));
- else
- name = IDENTIFIER_POINTER (DECL_NAME (TYPE_NAME (type)));
- }
- else
- name = "";
- $$ = result;
- if (TREE_CODE (type) == ARRAY_TYPE && !COMPLETE_TYPE_P (type))
- {
- int failure = complete_array_type (type, $$, 1);
- if (failure)
- abort ();
- }
+ $$ = build_compound_literal (type, constructor);
}
| '(' expr ')'
{ char class = TREE_CODE_CLASS (TREE_CODE ($2));
- if (class == 'e' || class == '1'
- || class == '2' || class == '<')
+ if (IS_EXPR_CODE_CLASS (class))
C_SET_EXP_ORIGINAL_CODE ($2, ERROR_MARK);
$$ = $2; }
| '(' error ')'
{ $$ = build_function_call ($1, $3); }
| VA_ARG '(' expr_no_commas ',' typename ')'
{ $$ = build_va_arg ($3, groktypename ($5)); }
+
+ | CHOOSE_EXPR '(' expr_no_commas ',' expr_no_commas ',' expr_no_commas ')'
+ {
+ tree c;
+
+ c = fold ($3);
+ STRIP_NOPS (c);
+ if (TREE_CODE (c) != INTEGER_CST)
+ error ("first argument to __builtin_choose_expr not a constant");
+ $$ = integer_zerop (c) ? $7 : $5;
+ }
+ | TYPES_COMPATIBLE_P '(' typename ',' typename ')'
+ {
+ tree e1, e2;
+
+ e1 = TYPE_MAIN_VARIANT (groktypename ($3));
+ e2 = TYPE_MAIN_VARIANT (groktypename ($5));
+
+ $$ = comptypes (e1, e2)
+ ? build_int_2 (1, 0) : build_int_2 (0, 0);
+ }
| primary '[' expr ']' %prec '.'
{ $$ = build_array_ref ($1, $3); }
| primary '.' identifier
end ifobjc
;
-/* Produces a STRING_CST with perhaps more STRING_CSTs chained onto it. */
-string:
- STRING
- | string STRING
- {
-ifc
- static int last_lineno = 0;
- static const char *last_input_filename = 0;
-end ifc
- $$ = chainon ($1, $2);
-ifc
- if (warn_traditional && !in_system_header
- && (lineno != last_lineno || !last_input_filename ||
- strcmp (last_input_filename, input_filename)))
- {
- warning ("traditional C rejects string concatenation");
- last_lineno = lineno;
- last_input_filename = input_filename;
- }
-end ifc
- }
- ;
-
ifobjc
/* Produces an STRING_CST with perhaps more STRING_CSTs chained
onto it, which is to be read as an ObjC string object. */
end ifobjc
old_style_parm_decls:
+ old_style_parm_decls_1
+ {
+ parsing_iso_function_signature = false; /* Reset after decls. */
+ }
+ ;
+
+old_style_parm_decls_1:
/* empty */
+ {
+ if (warn_traditional && !in_system_header
+ && parsing_iso_function_signature)
+ warning ("traditional C rejects ISO C style function definitions");
+ parsing_iso_function_signature = false; /* Reset after warning. */
+ }
| datadecls
- | datadecls ELLIPSIS
- /* ... is used here to indicate a varargs function. */
- { c_mark_varargs ();
- if (pedantic)
- pedwarn ("ISO C does not permit use of `varargs.h'"); }
;
/* The following are analogous to lineno_decl, decls and decl
all_prefix_attributes = prefix_attributes; }
;
-/* ??? Yuck. See maybe_setattrs. */
-setattrs: /* empty */
- { all_prefix_attributes = chainon ($<ttype>0, all_prefix_attributes); }
- ;
-
-maybe_setattrs:
- /* ??? Yuck. setattrs is a quick hack. We can't use
- prefix_attributes because $1 only applies to this
- declarator. We assume setspecs has already been done.
- setattrs also avoids 5 reduce/reduce conflicts (otherwise multiple
- attributes could be recognized here or in `attributes').
- Properly attributes ought to be able to apply to any level of
- nested declarator, but the necessary compiler support isn't
- present, so the attributes apply to a declaration (which may be
- nested). */
- maybe_attribute setattrs
- ;
-
/* Possibly attributes after a comma, which should reset all_prefix_attributes
to prefix_attributes with these ones chained on the front. */
maybe_resetattrs:
- { all_prefix_attributes = prefix_attributes; }
- maybe_setattrs
+ maybe_attribute
+ { all_prefix_attributes = chainon ($1, prefix_attributes); }
;
decl:
| declspecs ';'
{ shadow_tag ($1); }
| extension decl
- { RESTORE_WARN_FLAGS ($1); }
+ { RESTORE_EXT_FLAGS ($1); }
;
/* A list of declaration specifiers. These are:
- - Storage class specifiers (SCSPEC), which for GCC currently include
+ - Storage class specifiers (scspec), which for GCC currently includes
function specifiers ("inline").
- Type specifiers (typespec_*).
;
declspecs_sc_nots_nosa_noea:
- SCSPEC
+ scspec
{ $$ = tree_cons (NULL_TREE, $1, NULL_TREE);
TREE_STATIC ($$) = 0; }
| declspecs_sc_nots_nosa_noea TYPE_QUAL
| declspecs_sc_nots_nosa_ea TYPE_QUAL
{ $$ = tree_cons (NULL_TREE, $2, $1);
TREE_STATIC ($$) = 1; }
- | declspecs_nosc_nots_nosa_noea SCSPEC
+ | declspecs_nosc_nots_nosa_noea scspec
{ if (extra_warnings && TREE_STATIC ($1))
warning ("`%s' is not at beginning of declaration",
IDENTIFIER_POINTER ($2));
$$ = tree_cons (NULL_TREE, $2, $1);
TREE_STATIC ($$) = TREE_STATIC ($1); }
- | declspecs_nosc_nots_nosa_ea SCSPEC
+ | declspecs_nosc_nots_nosa_ea scspec
{ if (extra_warnings && TREE_STATIC ($1))
warning ("`%s' is not at beginning of declaration",
IDENTIFIER_POINTER ($2));
$$ = tree_cons (NULL_TREE, $2, $1);
TREE_STATIC ($$) = TREE_STATIC ($1); }
- | declspecs_sc_nots_nosa_noea SCSPEC
+ | declspecs_sc_nots_nosa_noea scspec
{ if (extra_warnings && TREE_STATIC ($1))
warning ("`%s' is not at beginning of declaration",
IDENTIFIER_POINTER ($2));
$$ = tree_cons (NULL_TREE, $2, $1);
TREE_STATIC ($$) = TREE_STATIC ($1); }
- | declspecs_sc_nots_nosa_ea SCSPEC
+ | declspecs_sc_nots_nosa_ea scspec
{ if (extra_warnings && TREE_STATIC ($1))
warning ("`%s' is not at beginning of declaration",
IDENTIFIER_POINTER ($2));
| declspecs_sc_nots_sa_ea TYPE_QUAL
{ $$ = tree_cons (NULL_TREE, $2, $1);
TREE_STATIC ($$) = 1; }
- | declspecs_nosc_nots_sa_noea SCSPEC
+ | declspecs_nosc_nots_sa_noea scspec
{ if (extra_warnings && TREE_STATIC ($1))
warning ("`%s' is not at beginning of declaration",
IDENTIFIER_POINTER ($2));
$$ = tree_cons (NULL_TREE, $2, $1);
TREE_STATIC ($$) = TREE_STATIC ($1); }
- | declspecs_nosc_nots_sa_ea SCSPEC
+ | declspecs_nosc_nots_sa_ea scspec
{ if (extra_warnings && TREE_STATIC ($1))
warning ("`%s' is not at beginning of declaration",
IDENTIFIER_POINTER ($2));
$$ = tree_cons (NULL_TREE, $2, $1);
TREE_STATIC ($$) = TREE_STATIC ($1); }
- | declspecs_sc_nots_sa_noea SCSPEC
+ | declspecs_sc_nots_sa_noea scspec
{ if (extra_warnings && TREE_STATIC ($1))
warning ("`%s' is not at beginning of declaration",
IDENTIFIER_POINTER ($2));
$$ = tree_cons (NULL_TREE, $2, $1);
TREE_STATIC ($$) = TREE_STATIC ($1); }
- | declspecs_sc_nots_sa_ea SCSPEC
+ | declspecs_sc_nots_sa_ea scspec
{ if (extra_warnings && TREE_STATIC ($1))
warning ("`%s' is not at beginning of declaration",
IDENTIFIER_POINTER ($2));
| declspecs_sc_nots_nosa_ea typespec_nonattr
{ $$ = tree_cons (NULL_TREE, $2, $1);
TREE_STATIC ($$) = 1; }
- | declspecs_nosc_ts_nosa_noea SCSPEC
+ | declspecs_nosc_ts_nosa_noea scspec
{ if (extra_warnings && TREE_STATIC ($1))
warning ("`%s' is not at beginning of declaration",
IDENTIFIER_POINTER ($2));
$$ = tree_cons (NULL_TREE, $2, $1);
TREE_STATIC ($$) = TREE_STATIC ($1); }
- | declspecs_nosc_ts_nosa_ea SCSPEC
+ | declspecs_nosc_ts_nosa_ea scspec
{ if (extra_warnings && TREE_STATIC ($1))
warning ("`%s' is not at beginning of declaration",
IDENTIFIER_POINTER ($2));
$$ = tree_cons (NULL_TREE, $2, $1);
TREE_STATIC ($$) = TREE_STATIC ($1); }
- | declspecs_sc_ts_nosa_noea SCSPEC
+ | declspecs_sc_ts_nosa_noea scspec
{ if (extra_warnings && TREE_STATIC ($1))
warning ("`%s' is not at beginning of declaration",
IDENTIFIER_POINTER ($2));
$$ = tree_cons (NULL_TREE, $2, $1);
TREE_STATIC ($$) = TREE_STATIC ($1); }
- | declspecs_sc_ts_nosa_ea SCSPEC
+ | declspecs_sc_ts_nosa_ea scspec
{ if (extra_warnings && TREE_STATIC ($1))
warning ("`%s' is not at beginning of declaration",
IDENTIFIER_POINTER ($2));
| declspecs_sc_nots_sa_ea typespec_nonattr
{ $$ = tree_cons (NULL_TREE, $2, $1);
TREE_STATIC ($$) = 1; }
- | declspecs_nosc_ts_sa_noea SCSPEC
+ | declspecs_nosc_ts_sa_noea scspec
{ if (extra_warnings && TREE_STATIC ($1))
warning ("`%s' is not at beginning of declaration",
IDENTIFIER_POINTER ($2));
$$ = tree_cons (NULL_TREE, $2, $1);
TREE_STATIC ($$) = TREE_STATIC ($1); }
- | declspecs_nosc_ts_sa_ea SCSPEC
+ | declspecs_nosc_ts_sa_ea scspec
{ if (extra_warnings && TREE_STATIC ($1))
warning ("`%s' is not at beginning of declaration",
IDENTIFIER_POINTER ($2));
$$ = tree_cons (NULL_TREE, $2, $1);
TREE_STATIC ($$) = TREE_STATIC ($1); }
- | declspecs_sc_ts_sa_noea SCSPEC
+ | declspecs_sc_ts_sa_noea scspec
{ if (extra_warnings && TREE_STATIC ($1))
warning ("`%s' is not at beginning of declaration",
IDENTIFIER_POINTER ($2));
$$ = tree_cons (NULL_TREE, $2, $1);
TREE_STATIC ($$) = TREE_STATIC ($1); }
- | declspecs_sc_ts_sa_ea SCSPEC
+ | declspecs_sc_ts_sa_ea scspec
{ if (extra_warnings && TREE_STATIC ($1))
warning ("`%s' is not at beginning of declaration",
IDENTIFIER_POINTER ($2));
| declspecs_sc_ts_sa_ea
;
-/* A (possibly empty) sequence of type qualifiers and attributes, to be
- followed by the effect of setattrs if any attributes were present. */
-maybe_type_quals_setattrs:
+/* A (possibly empty) sequence of type qualifiers and attributes. */
+maybe_type_quals_attrs:
/* empty */
{ $$ = NULL_TREE; }
| declspecs_nosc_nots
- { tree specs, attrs;
- split_specs_attrs ($1, &specs, &attrs);
- /* ??? Yuck. See maybe_setattrs. */
- if (attrs != NULL_TREE)
- all_prefix_attributes = chainon (attrs, all_prefix_attributes);
- $$ = specs; }
+ { $$ = $1; }
;
/* A type specifier (but not a type qualifier).
| non_empty_protocolrefs
{ $$ = get_object_reference ($1); }
end ifobjc
- | TYPEOF '(' expr ')'
- { $$ = TREE_TYPE ($3); }
- | TYPEOF '(' typename ')'
- { $$ = groktypename ($3); }
+ | typeof '(' expr ')'
+ { skip_evaluation--; $$ = TREE_TYPE ($3); }
+ | typeof '(' typename ')'
+ { skip_evaluation--; $$ = groktypename ($3); }
;
/* typespec_nonreserved_attr does not exist. */
maybeasm:
/* empty */
{ $$ = NULL_TREE; }
- | ASM_KEYWORD '(' string ')'
- { if (TREE_CHAIN ($3)) $3 = combine_strings ($3);
- $$ = $3;
- }
+ | ASM_KEYWORD '(' STRING ')'
+ { $$ = $3; }
;
initdcl:
| declarator maybeasm maybe_attribute
{ tree d = start_decl ($1, current_declspecs, 0,
chainon ($3, all_prefix_attributes));
- finish_decl (d, NULL_TREE, $2);
+ finish_decl (d, NULL_TREE, $2);
}
;
so that the header files compile. */
maybe_attribute:
/* empty */
- { $$ = NULL_TREE; }
+ { $$ = NULL_TREE; }
| attributes
{ $$ = $1; }
;
-
+
attributes:
attribute
{ $$ = $1; }
| attribute_list ',' attrib
{ $$ = chainon ($1, $3); }
;
-
+
attrib:
/* empty */
{ $$ = NULL_TREE; }
any_word:
identifier
- | SCSPEC
+ | scspec
| TYPESPEC
| TYPE_QUAL
;
+
+scspec:
+ STATIC
+ | SCSPEC
+ ;
\f
/* Initializers. `init' is the entry point. */
if (pedantic)
pedwarn ("obsolete use of designated initializer with `:'"); }
initval
+ {}
| initval
;
designator:
'.' identifier
{ set_init_label ($2); }
- /* These are for labeled elements. The syntax for an array element
- initializer conflicts with the syntax for an Objective-C message,
- so don't include these productions in the Objective-C grammar. */
-ifc
| '[' expr_no_commas ELLIPSIS expr_no_commas ']'
{ set_init_index ($2, $4);
if (pedantic)
pedwarn ("ISO C forbids specifying range of elements to initialize"); }
| '[' expr_no_commas ']'
{ set_init_index ($2, NULL_TREE); }
-end ifc
;
\f
nested_function:
pop_function_context ();
YYERROR1;
}
+ parsing_iso_function_signature = false; /* Don't warn about nested functions. */
}
old_style_parm_decls
{ store_parm_decls (); }
{ tree decl = current_function_decl;
DECL_SOURCE_FILE (decl) = $5;
DECL_SOURCE_LINE (decl) = $6;
- finish_function (1);
- pop_function_context ();
+ finish_function (1, 1);
+ pop_function_context ();
add_decl_stmt (decl); }
;
pop_function_context ();
YYERROR1;
}
+ parsing_iso_function_signature = false; /* Don't warn about nested functions. */
}
old_style_parm_decls
{ store_parm_decls (); }
{ tree decl = current_function_decl;
DECL_SOURCE_FILE (decl) = $5;
DECL_SOURCE_LINE (decl) = $6;
- finish_function (1);
- pop_function_context ();
+ finish_function (1, 1);
+ pop_function_context ();
add_decl_stmt (decl); }
;
/* A declarator that is allowed only after an explicit typespec. */
after_type_declarator:
- '(' maybe_setattrs after_type_declarator ')'
- { $$ = $3; }
+ '(' maybe_attribute after_type_declarator ')'
+ { $$ = $2 ? tree_cons ($2, $3, NULL_TREE) : $3; }
| after_type_declarator '(' parmlist_or_identifiers %prec '.'
{ $$ = build_nt (CALL_EXPR, $1, $3, NULL_TREE); }
/* | after_type_declarator '(' error ')' %prec '.'
poplevel (0, 0, 0); } */
| after_type_declarator array_declarator %prec '.'
{ $$ = set_array_declarator_type ($2, $1, 0); }
- | '*' maybe_type_quals_setattrs after_type_declarator %prec UNARY
+ | '*' maybe_type_quals_attrs after_type_declarator %prec UNARY
{ $$ = make_pointer_declarator ($2, $3); }
| TYPENAME
ifobjc
poplevel (0, 0, 0); } */
| parm_declarator_nostarttypename array_declarator %prec '.'
{ $$ = set_array_declarator_type ($2, $1, 0); }
- | '*' maybe_type_quals_setattrs parm_declarator_starttypename %prec UNARY
+ | '*' maybe_type_quals_attrs parm_declarator_starttypename %prec UNARY
{ $$ = make_pointer_declarator ($2, $3); }
- | '*' maybe_type_quals_setattrs parm_declarator_nostarttypename %prec UNARY
+ | '*' maybe_type_quals_attrs parm_declarator_nostarttypename %prec UNARY
{ $$ = make_pointer_declarator ($2, $3); }
- | '(' maybe_setattrs parm_declarator_nostarttypename ')'
- { $$ = $3; }
+ | '(' maybe_attribute parm_declarator_nostarttypename ')'
+ { $$ = $2 ? tree_cons ($2, $3, NULL_TREE) : $3; }
;
/* A declarator allowed whether or not there has been
/* | notype_declarator '(' error ')' %prec '.'
{ $$ = build_nt (CALL_EXPR, $1, NULL_TREE, NULL_TREE);
poplevel (0, 0, 0); } */
- | '(' maybe_setattrs notype_declarator ')'
- { $$ = $3; }
- | '*' maybe_type_quals_setattrs notype_declarator %prec UNARY
+ | '(' maybe_attribute notype_declarator ')'
+ { $$ = $2 ? tree_cons ($2, $3, NULL_TREE) : $3; }
+ | '*' maybe_type_quals_attrs notype_declarator %prec UNARY
{ $$ = make_pointer_declarator ($2, $3); }
| notype_declarator array_declarator %prec '.'
{ $$ = set_array_declarator_type ($2, $1, 0); }
{ $$ = start_struct (RECORD_TYPE, $2);
/* Start scope of tag before parsing components. */
}
- component_decl_list '}' maybe_attribute
- { $$ = finish_struct ($<ttype>4, $5, chainon ($1, $7)); }
+ component_decl_list '}' maybe_attribute
+ { $$ = finish_struct ($<ttype>4, nreverse ($5),
+ chainon ($1, $7)); }
| struct_head '{' component_decl_list '}' maybe_attribute
{ $$ = finish_struct (start_struct (RECORD_TYPE, NULL_TREE),
- $3, chainon ($1, $5));
+ nreverse ($3), chainon ($1, $5));
}
| union_head identifier '{'
{ $$ = start_struct (UNION_TYPE, $2); }
component_decl_list '}' maybe_attribute
- { $$ = finish_struct ($<ttype>4, $5, chainon ($1, $7)); }
+ { $$ = finish_struct ($<ttype>4, nreverse ($5),
+ chainon ($1, $7)); }
| union_head '{' component_decl_list '}' maybe_attribute
{ $$ = finish_struct (start_struct (UNION_TYPE, NULL_TREE),
- $3, chainon ($1, $5));
+ nreverse ($3), chainon ($1, $5));
}
| enum_head identifier '{'
{ $$ = start_enum ($2); }
pedwarn ("comma at end of enumerator list"); }
;
+/* We chain the components in reverse order. They are put in forward
+ order in structsp_attr.
+
+ Note that component_declarator returns single decls, so components
+ and components_notype can use TREE_CHAIN directly, wheras components
+ and components_notype return lists (of comma separated decls), so
+ component_decl_list and component_decl_list2 must use chainon.
+
+ The theory behind all this is that there will be more semicolon
+ separated fields than comma separated fields, and so we'll be
+ minimizing the number of node traversals required by chainon. */
+
component_decl_list:
component_decl_list2
{ $$ = $1; }
| component_decl_list2 component_decl
- { $$ = chainon ($1, $2);
+ { $$ = chainon ($2, $1);
pedwarn ("no semicolon at end of struct or union"); }
;
component_decl_list2: /* empty */
{ $$ = NULL_TREE; }
| component_decl_list2 component_decl ';'
- { $$ = chainon ($1, $2); }
+ { $$ = chainon ($2, $1); }
| component_decl_list2 ';'
{ if (pedantic)
pedwarn ("extra semicolon in struct or union specified"); }
tree interface = lookup_interface ($3);
if (interface)
- $$ = get_class_ivars (interface);
+ $$ = nreverse (get_class_ivars (interface));
else
{
- error ("Cannot find interface declaration for `%s'",
+ error ("cannot find interface declaration for `%s'",
IDENTIFIER_POINTER ($3));
$$ = NULL_TREE;
}
POP_DECLSPEC_STACK; }
| declspecs_nosc_ts setspecs save_filename save_lineno
{
- /* Support for unnamed structs or unions as members of
- structs or unions (which is [a] useful and [b] supports
+ /* Support for unnamed structs or unions as members of
+ structs or unions (which is [a] useful and [b] supports
MS P-SDK). */
if (pedantic)
pedwarn ("ISO C doesn't support unnamed structs/unions");
{ $$ = NULL_TREE; }
| extension component_decl
{ $$ = $2;
- RESTORE_WARN_FLAGS ($1); }
+ RESTORE_EXT_FLAGS ($1); }
;
components:
component_declarator
| components ',' maybe_resetattrs component_declarator
- { $$ = chainon ($1, $4); }
+ { TREE_CHAIN ($4) = $1; $$ = $4; }
;
components_notype:
component_notype_declarator
| components_notype ',' maybe_resetattrs component_notype_declarator
- { $$ = chainon ($1, $4); }
+ { TREE_CHAIN ($4) = $1; $$ = $4; }
;
component_declarator:
;
/* We chain the enumerators in reverse order.
- They are put in forward order where enumlist is used.
- (The order used to be significant, but no longer is so.
- However, we still maintain the order, just to be clean.) */
+ They are put in forward order in structsp_attr. */
enumlist:
enumerator
{ if ($1 == error_mark_node)
$$ = $1;
else
- $$ = chainon ($3, $1); }
+ TREE_CHAIN ($3) = $1, $$ = $3; }
| error
{ $$ = error_mark_node; }
;
typename:
declspecs_nosc
- { tree specs, attrs;
- pending_xref_error ();
- split_specs_attrs ($1, &specs, &attrs);
- /* We don't yet support attributes here. */
- if (attrs != NULL_TREE)
- warning ("attributes on type name ignored");
- $<ttype>$ = specs; }
+ { pending_xref_error ();
+ $<ttype>$ = $1; }
absdcl
{ $$ = build_tree_list ($<ttype>2, $3); }
;
absdcl1_noea:
direct_absdcl1
- | '*' maybe_type_quals_setattrs absdcl1_noea
+ | '*' maybe_type_quals_attrs absdcl1_noea
{ $$ = make_pointer_declarator ($2, $3); }
;
absdcl1_ea:
- '*' maybe_type_quals_setattrs
+ '*' maybe_type_quals_attrs
{ $$ = make_pointer_declarator ($2, NULL_TREE); }
- | '*' maybe_type_quals_setattrs absdcl1_ea
+ | '*' maybe_type_quals_attrs absdcl1_ea
{ $$ = make_pointer_declarator ($2, $3); }
;
direct_absdcl1:
- '(' maybe_setattrs absdcl1 ')'
- { $$ = $3; }
+ '(' maybe_attribute absdcl1 ')'
+ { $$ = $2 ? tree_cons ($2, $3, NULL_TREE) : $3; }
| direct_absdcl1 '(' parmlist
{ $$ = build_nt (CALL_EXPR, $1, $3, NULL_TREE); }
| direct_absdcl1 array_declarator
/* The [...] part of a declarator for an array type. */
array_declarator:
- '[' expr ']'
- { $$ = build_array_declarator ($2, NULL_TREE, 0, 0); }
- | '[' declspecs_nosc expr ']'
+ '[' maybe_type_quals_attrs expr ']'
{ $$ = build_array_declarator ($3, $2, 0, 0); }
- | '[' ']'
- { $$ = build_array_declarator (NULL_TREE, NULL_TREE, 0, 0); }
- | '[' declspecs_nosc ']'
+ | '[' maybe_type_quals_attrs ']'
{ $$ = build_array_declarator (NULL_TREE, $2, 0, 0); }
- | '[' '*' ']'
- { $$ = build_array_declarator (NULL_TREE, NULL_TREE, 0, 1); }
- | '[' declspecs_nosc '*' ']'
+ | '[' maybe_type_quals_attrs '*' ']'
{ $$ = build_array_declarator (NULL_TREE, $2, 0, 1); }
- | '[' SCSPEC expr ']'
- { if (C_RID_CODE ($2) != RID_STATIC)
- error ("storage class specifier in array declarator");
- $$ = build_array_declarator ($3, NULL_TREE, 1, 0); }
- | '[' SCSPEC declspecs_nosc expr ']'
- { if (C_RID_CODE ($2) != RID_STATIC)
- error ("storage class specifier in array declarator");
- $$ = build_array_declarator ($4, $3, 1, 0); }
- | '[' declspecs_nosc SCSPEC expr ']'
- { if (C_RID_CODE ($3) != RID_STATIC)
- error ("storage class specifier in array declarator");
- $$ = build_array_declarator ($4, $2, 1, 0); }
+ | '[' STATIC maybe_type_quals_attrs expr ']'
+ { $$ = build_array_declarator ($4, $3, 1, 0); }
+ /* declspecs_nosc_nots is a synonym for type_quals_attrs. */
+ | '[' declspecs_nosc_nots STATIC expr ']'
+ { $$ = build_array_declarator ($4, $2, 1, 0); }
;
/* A nonempty series of declarations and statements (possibly followed by
poplevel: /* empty */
{ $$ = add_scope_stmt (/*begin_p=*/0, /*partial_p=*/0); }
+ ;
/* Start and end blocks created for the new scopes of C99. */
c99_block_start: /* empty */
{ if (flag_isoc99)
{
tree scope_stmt = add_scope_stmt (/*begin_p=*/0, /*partial_p=*/0);
- $$ = poplevel (kept_level_p (), 0, 0);
- SCOPE_STMT_BLOCK (TREE_PURPOSE (scope_stmt))
+ $$ = poplevel (kept_level_p (), 0, 0);
+ SCOPE_STMT_BLOCK (TREE_PURPOSE (scope_stmt))
= SCOPE_STMT_BLOCK (TREE_VALUE (scope_stmt))
= $$;
}
;
compstmt_start: '{' { compstmt_count++;
- $$ = c_begin_compound_stmt (); }
+ $$ = c_begin_compound_stmt (); }
+ ;
compstmt_nostart: '}'
{ $$ = convert (void_type_node, integer_zero_node); }
| pushlevel maybe_label_decls compstmt_contents_nonempty '}' poplevel
- { $$ = poplevel (kept_level_p (), 1, 0);
- SCOPE_STMT_BLOCK (TREE_PURPOSE ($5))
+ { $$ = poplevel (kept_level_p (), 1, 0);
+ SCOPE_STMT_BLOCK (TREE_PURPOSE ($5))
= SCOPE_STMT_BLOCK (TREE_VALUE ($5))
= $$; }
;
compstmt_count++;
$$ = add_stmt (build_stmt (COMPOUND_STMT, last_tree));
}
+ ;
compstmt: compstmt_start compstmt_nostart
- { RECHAIN_STMTS ($1, COMPOUND_BODY ($1));
+ { RECHAIN_STMTS ($1, COMPOUND_BODY ($1));
+ last_expr_type = NULL_TREE;
$$ = $1; }
;
;
if_prefix:
- IF '(' expr ')'
- { c_expand_start_cond (truthvalue_conversion ($3),
- compstmt_count);
+ /* We must build the IF_STMT node before parsing its
+ condition so that STMT_LINENO refers to the line
+ containing the "if", and not the line containing
+ the close-parenthesis.
+
+ c_begin_if_stmt returns the IF_STMT node, which
+ we later pass to c_expand_start_cond to fill
+ in the condition and other tidbits. */
+ IF
+ { $<ttype>$ = c_begin_if_stmt (); }
+ '(' expr ')'
+ { c_expand_start_cond (c_common_truthvalue_conversion ($4),
+ compstmt_count,$<ttype>2);
$<itype>$ = stmt_count;
- if_stmt_file = $<filename>-2;
- if_stmt_line = $<lineno>-1; }
- ;
+ if_stmt_locus.file = $<filename>-2;
+ if_stmt_locus.line = $<lineno>-1; }
+ ;
/* This is a subroutine of stmt.
It is used twice, once for valid DO statements
DO
{ stmt_count++;
compstmt_count++;
- $<ttype>$
+ $<ttype>$
= add_stmt (build_stmt (DO_STMT, NULL_TREE,
NULL_TREE));
/* In the event that a parse error prevents
save_lineno:
{ if (yychar == YYEMPTY)
yychar = YYLEX;
- $$ = lineno; }
+ $$ = input_line; }
;
lineno_labeled_stmt:
/* ??? We currently have no way of recording
the filename for a statement. This probably
matters little in practice at the moment,
- but I suspect that problems will ocurr when
+ but I suspect that problems will occur when
doing inlining at the tree level. */
}
}
else statement. Increment stmt_count so we don't
give a second error if this is a nested `if'. */
if (extra_warnings && stmt_count++ == $<itype>1)
- warning_with_file_and_line (if_stmt_file, if_stmt_line,
- "empty body in an if-statement"); }
+ warning ("%Hempty body in an if-statement",
+ &if_stmt_locus); }
/* Make sure c_expand_end_cond is run once
for each call to c_expand_start_cond.
Otherwise a crash is likely. */
| simple_if ELSE error
{ c_expand_end_cond (); }
+ /* We must build the WHILE_STMT node before parsing its
+ condition so that STMT_LINENO refers to the line
+ containing the "while", and not the line containing
+ the close-parenthesis.
+
+ c_begin_while_stmt returns the WHILE_STMT node, which
+ we later pass to c_finish_while_stmt_cond to fill
+ in the condition and other tidbits. */
| WHILE
- { stmt_count++; }
+ { stmt_count++;
+ $<ttype>$ = c_begin_while_stmt (); }
'(' expr ')'
- { $4 = truthvalue_conversion ($4);
- $<ttype>$
- = add_stmt (build_stmt (WHILE_STMT, $4, NULL_TREE)); }
+ { $4 = c_common_truthvalue_conversion ($4);
+ c_finish_while_stmt_cond
+ (c_common_truthvalue_conversion ($4), $<ttype>2);
+ $<ttype>$ = add_stmt ($<ttype>2); }
c99_block_lineno_labeled_stmt
{ RECHAIN_STMTS ($<ttype>6, WHILE_BODY ($<ttype>6)); }
| do_stmt_start
'(' expr ')' ';'
- { DO_COND ($1) = truthvalue_conversion ($3); }
+ { DO_COND ($1) = c_common_truthvalue_conversion ($3); }
| do_stmt_start error
- { }
+ { }
| FOR
{ $<ttype>$ = build_stmt (FOR_STMT, NULL_TREE, NULL_TREE,
NULL_TREE, NULL_TREE);
- add_stmt ($<ttype>$); }
+ add_stmt ($<ttype>$); }
'(' for_init_stmt
{ stmt_count++;
RECHAIN_STMTS ($<ttype>2, FOR_INIT_STMT ($<ttype>2)); }
xexpr ';'
- { if ($6)
- FOR_COND ($<ttype>2) = truthvalue_conversion ($6); }
+ { if ($6)
+ FOR_COND ($<ttype>2)
+ = c_common_truthvalue_conversion ($6); }
xexpr ')'
{ FOR_EXPR ($<ttype>2) = $9; }
c99_block_lineno_labeled_stmt
for_init_stmt:
xexpr ';'
- { add_stmt (build_stmt (EXPR_STMT, $1)); }
+ { add_stmt (build_stmt (EXPR_STMT, $1)); }
| decl
{ check_for_loop_decls (); }
;
$$ = build_asm_stmt ($2, $4, $6, $8, NULL_TREE); }
/* This is the case with clobbered registers as well. */
| ASM_KEYWORD maybe_type_qual '(' expr ':' asm_operands ':'
- asm_operands ':' asm_clobbers ')' ';'
+ asm_operands ':' asm_clobbers ')' ';'
{ stmt_count++;
$$ = build_asm_stmt ($2, $4, $6, $8, $10); }
| GOTO identifier ';'
maybe_type_qual:
/* empty */
- { emit_line_note (input_filename, lineno);
+ { emit_line_note (input_filename, input_line);
$$ = NULL_TREE; }
| TYPE_QUAL
- { emit_line_note (input_filename, lineno); }
+ { emit_line_note (input_filename, input_line); }
;
xexpr:
asm_operand:
STRING '(' expr ')'
- { $$ = build_tree_list ($1, $3); }
+ { $$ = build_tree_list (build_tree_list (NULL_TREE, $1), $3); }
+ | '[' identifier ']' STRING '(' expr ')'
+ { $2 = build_string (IDENTIFIER_LENGTH ($2),
+ IDENTIFIER_POINTER ($2));
+ $$ = build_tree_list (build_tree_list ($2, $4), $6); }
;
asm_clobbers:
- string
- { $$ = tree_cons (NULL_TREE, combine_strings ($1), NULL_TREE); }
- | asm_clobbers ',' string
- { $$ = tree_cons (NULL_TREE, combine_strings ($3), $1); }
+ STRING
+ { $$ = tree_cons (NULL_TREE, $1, NULL_TREE); }
+ | asm_clobbers ',' STRING
+ { $$ = tree_cons (NULL_TREE, $3, $1); }
;
\f
/* This is what appears inside the parens in a function declarator.
error ("ISO C requires a named argument before `...'");
}
| parms
- { $$ = get_parm_info (1); }
+ { $$ = get_parm_info (1);
+ parsing_iso_function_signature = true;
+ }
| parms ',' ELLIPSIS
{ $$ = get_parm_info (0); }
;
| declspecs_ts setspecs notype_declarator maybe_attribute
{ $$ = build_tree_list (build_tree_list (current_declspecs,
$3),
- chainon ($4, all_prefix_attributes));
+ chainon ($4, all_prefix_attributes));
POP_DECLSPEC_STACK; }
| declspecs_ts setspecs absdcl_maybe_attribute
{ $$ = $3;
| declspecs_ts_nosa setspecs_fp notype_declarator maybe_attribute
{ $$ = build_tree_list (build_tree_list (current_declspecs,
$3),
- chainon ($4, all_prefix_attributes));
+ chainon ($4, all_prefix_attributes));
POP_DECLSPEC_STACK; }
| declspecs_ts_nosa setspecs_fp absdcl_maybe_attribute
{ $$ = $3;
where either a parmlist or an identifier list is ok.
Its value is a list of ..._TYPE nodes or a list of identifiers. */
parmlist_or_identifiers:
+ maybe_attribute
{ pushlevel (0);
clear_parm_order ();
declare_parm_level (1); }
parmlist_or_identifiers_1
- { $$ = $2;
+ { $$ = $3;
parmlist_tags_warning ();
poplevel (0, 0, 0); }
;
for (t = $1; t; t = TREE_CHAIN (t))
if (TREE_VALUE (t) == NULL_TREE)
error ("`...' in old-style identifier list");
- $$ = tree_cons (NULL_TREE, NULL_TREE, $1); }
+ $$ = tree_cons (NULL_TREE, NULL_TREE, $1);
+
+ /* Make sure we have a parmlist after attributes. */
+ if ($<ttype>-1 != 0
+ && (TREE_CODE ($$) != TREE_LIST
+ || TREE_PURPOSE ($$) == 0
+ || TREE_CODE (TREE_PURPOSE ($$)) != PARM_DECL))
+ YYERROR1;
+ }
;
/* A nonempty list of identifiers. */
extension:
EXTENSION
- { $$ = SAVE_WARN_FLAGS();
+ { $$ = SAVE_EXT_FLAGS();
pedantic = 0;
- warn_pointer_arith = 0; }
+ warn_pointer_arith = 0;
+ warn_traditional = 0;
+ flag_iso = 0; }
;
\f
ifobjc
{
objc_declare_class ($2);
}
+ ;
aliasdecl:
ALIAS identifier identifier ';'
{
objc_declare_alias ($2, $3);
}
+ ;
classdef:
INTERFACE identifier protocolrefs '{'
else
add_instance_method (objc_implementation_context, $3);
start_method_def ($3);
- objc_method_context = $3;
}
optarglist
{
compstmt_or_error
{
finish_method_def ();
- objc_method_context = NULL_TREE;
}
;
optparmlist:
/* empty */
{
- $$ = NULL_TREE;
+ $$ = NULL_TREE;
}
| ',' ELLIPSIS
{
}
parmlist_2
{
- /* returns a tree list node generated by get_parm_info */
+ /* returns a tree list node generated by get_parm_info */
$$ = $3;
poplevel (0, 0, 0);
}
;
objcmessageexpr:
- '['
- { objc_receiver_context = 1; }
- receiver
- { objc_receiver_context = 0; }
- messageargs ']'
- {
- $$ = build_tree_list ($3, $5);
- }
+ '[' receiver messageargs ']'
+ { $$ = build_tree_list ($2, $3); }
;
selectorarg:
/* Disable mask. Keywords are disabled if (reswords[i].disable & mask) is
_true_. */
-#define D_TRAD 0x01 /* not in traditional C */
-#define D_C89 0x02 /* not in C89 */
-#define D_EXT 0x04 /* GCC extension */
-#define D_EXT89 0x08 /* GCC extension incorporated in C99 */
-#define D_OBJC 0x10 /* Objective C only */
+#define D_C89 0x01 /* not in C89 */
+#define D_EXT 0x02 /* GCC extension */
+#define D_EXT89 0x04 /* GCC extension incorporated in C99 */
+#define D_OBJC 0x08 /* Objective C only */
static const struct resword reswords[] =
{
{ "__attribute__", RID_ATTRIBUTE, 0 },
{ "__bounded", RID_BOUNDED, 0 },
{ "__bounded__", RID_BOUNDED, 0 },
+ { "__builtin_choose_expr", RID_CHOOSE_EXPR, 0 },
+ { "__builtin_types_compatible_p", RID_TYPES_COMPATIBLE_P, 0 },
{ "__builtin_va_arg", RID_VA_ARG, 0 },
{ "__complex", RID_COMPLEX, 0 },
{ "__complex__", RID_COMPLEX, 0 },
{ "__restrict__", RID_RESTRICT, 0 },
{ "__signed", RID_SIGNED, 0 },
{ "__signed__", RID_SIGNED, 0 },
+ { "__thread", RID_THREAD, 0 },
{ "__typeof", RID_TYPEOF, 0 },
{ "__typeof__", RID_TYPEOF, 0 },
{ "__unbounded", RID_UNBOUNDED, 0 },
{ "break", RID_BREAK, 0 },
{ "case", RID_CASE, 0 },
{ "char", RID_CHAR, 0 },
- { "const", RID_CONST, D_TRAD },
+ { "const", RID_CONST, 0 },
{ "continue", RID_CONTINUE, 0 },
{ "default", RID_DEFAULT, 0 },
{ "do", RID_DO, 0 },
{ "for", RID_FOR, 0 },
{ "goto", RID_GOTO, 0 },
{ "if", RID_IF, 0 },
- { "inline", RID_INLINE, D_TRAD|D_EXT89 },
+ { "inline", RID_INLINE, D_EXT89 },
{ "int", RID_INT, 0 },
{ "long", RID_LONG, 0 },
{ "register", RID_REGISTER, 0 },
- { "restrict", RID_RESTRICT, D_TRAD|D_C89 },
+ { "restrict", RID_RESTRICT, D_C89 },
{ "return", RID_RETURN, 0 },
{ "short", RID_SHORT, 0 },
- { "signed", RID_SIGNED, D_TRAD },
+ { "signed", RID_SIGNED, 0 },
{ "sizeof", RID_SIZEOF, 0 },
{ "static", RID_STATIC, 0 },
{ "struct", RID_STRUCT, 0 },
{ "switch", RID_SWITCH, 0 },
{ "typedef", RID_TYPEDEF, 0 },
- { "typeof", RID_TYPEOF, D_TRAD|D_EXT },
+ { "typeof", RID_TYPEOF, D_EXT },
{ "union", RID_UNION, 0 },
{ "unsigned", RID_UNSIGNED, 0 },
{ "void", RID_VOID, 0 },
- { "volatile", RID_VOLATILE, D_TRAD },
+ { "volatile", RID_VOLATILE, 0 },
{ "while", RID_WHILE, 0 },
ifobjc
{ "id", RID_ID, D_OBJC },
three languages. */
static const short rid_to_yy[RID_MAX] =
{
- /* RID_STATIC */ SCSPEC,
+ /* RID_STATIC */ STATIC,
/* RID_UNSIGNED */ TYPESPEC,
/* RID_LONG */ TYPESPEC,
/* RID_CONST */ TYPE_QUAL,
/* RID_BOUNDED */ TYPE_QUAL,
/* RID_UNBOUNDED */ TYPE_QUAL,
/* RID_COMPLEX */ TYPESPEC,
+ /* RID_THREAD */ SCSPEC,
/* C++ */
/* RID_FRIEND */ 0,
/* RID_BYCOPY */ TYPE_QUAL,
/* RID_BYREF */ TYPE_QUAL,
/* RID_ONEWAY */ TYPE_QUAL,
-
+
/* C */
/* RID_INT */ TYPESPEC,
/* RID_CHAR */ TYPESPEC,
/* RID_PTREXTENT */ PTR_EXTENT,
/* RID_PTRVALUE */ PTR_VALUE,
+ /* RID_CHOOSE_EXPR */ CHOOSE_EXPR,
+ /* RID_TYPES_COMPATIBLE_P */ TYPES_COMPATIBLE_P,
+
/* RID_FUNCTION_NAME */ STRING_FUNC_NAME,
/* RID_PRETTY_FUNCTION_NAME */ STRING_FUNC_NAME,
/* RID_C99_FUNCTION_NAME */ VAR_FUNC_NAME,
/* RID_REINTCAST */ 0,
/* RID_STATCAST */ 0,
- /* alternate spellings */
- /* RID_AND */ 0,
- /* RID_AND_EQ */ 0,
- /* RID_NOT */ 0,
- /* RID_NOT_EQ */ 0,
- /* RID_OR */ 0,
- /* RID_OR_EQ */ 0,
- /* RID_XOR */ 0,
- /* RID_XOR_EQ */ 0,
- /* RID_BITAND */ 0,
- /* RID_BITOR */ 0,
- /* RID_COMPL */ 0,
-
/* Objective C */
/* RID_ID */ OBJECTNAME,
/* RID_AT_ENCODE */ ENCODE,
unsigned int i;
tree id;
int mask = (flag_isoc99 ? 0 : D_C89)
- | (flag_traditional ? D_TRAD : 0)
| (flag_no_asm ? (flag_isoc99 ? D_EXT : D_EXT|D_EXT89) : 0);
- if (c_language != clk_objective_c)
+ if (!flag_objc)
mask |= D_OBJC;
- /* It is not necessary to register ridpointers as a GC root, because
- all the trees it points to are permanently interned in the
- get_identifier hash anyway. */
- ridpointers = (tree *) xcalloc ((int) RID_MAX, sizeof (tree));
+ ridpointers = (tree *) ggc_calloc ((int) RID_MAX, sizeof (tree));
for (i = 0; i < N_reswords; i++)
{
/* If a keyword is disabled, do not enter it into the table
}
}
-const char *
-init_parse (filename)
- const char *filename;
-{
- add_c_tree_codes ();
-
- /* Make identifier nodes long enough for the language-specific slots. */
- set_identifier_size (sizeof (struct lang_identifier));
-
- init_reswords ();
- init_pragma ();
-
- return init_c_lex (filename);
-}
-
-void
-finish_parse ()
-{
- cpp_finish (parse_in);
- /* Call to cpp_destroy () omitted for performance reasons. */
- errorcount += cpp_errors (parse_in);
-}
-
#define NAME(type) cpp_type2name (type)
static void
else if (last_token == CPP_CHAR || last_token == CPP_WCHAR)
{
unsigned int val = TREE_INT_CST_LOW (yylval.ttype);
- const char *ell = (last_token == CPP_CHAR) ? "" : "L";
+ const char *const ell = (last_token == CPP_CHAR) ? "" : "L";
if (val <= UCHAR_MAX && ISGRAPH (val))
error ("%s before %s'%c'", string, ell, val);
else
yylexname ()
{
tree decl;
-
+
ifobjc
int objc_force_identifier = objc_need_raw_identifier;
OBJC_NEED_RAW_IDENTIFIER (0);
end ifobjc
-
+
if (C_IS_RESERVED_WORD (yylval.ttype))
{
enum rid rid_code = C_RID_CODE (yylval.ttype);
/* __FUNCTION__ and __PRETTY_FUNCTION__ get converted
to string constants. */
const char *name = fname_string (rid_code);
-
+
yylval.ttype = build_string (strlen (name) + 1, name);
+ C_ARTIFICIAL_STRING_P (yylval.ttype) = 1;
last_token = CPP_STRING; /* so yyerror won't choke */
return STRING;
}
-
+
/* Return the canonical spelling for this keyword. */
yylval.ttype = ridpointers[(int) rid_code];
return yycode;
tree objc_interface_decl = is_class_name (yylval.ttype);
/* ObjC class names are in the same namespace as variables and
typedefs, and hence are shadowed by local declarations. */
- if (objc_interface_decl
- && (global_bindings_p ()
+ if (objc_interface_decl
+ && (global_bindings_p ()
|| (!objc_force_identifier && !decl)))
{
yylval.ttype = objc_interface_decl;
return IDENTIFIER;
}
+/* Concatenate strings before returning them to the parser. This isn't quite
+ as good as having it done in the lexer, but it's better than nothing. */
+
+static int
+yylexstring ()
+{
+ enum cpp_ttype next_type;
+ tree orig = yylval.ttype;
+
+ next_type = c_lex (&yylval.ttype);
+ if (next_type == CPP_STRING
+ || next_type == CPP_WSTRING
+ || (next_type == CPP_NAME && yylexname () == STRING))
+ {
+ varray_type strings;
+
+ifc
+ static int last_lineno = 0;
+ static const char *last_input_filename = 0;
+ if (warn_traditional && !in_system_header
+ && (input_line != last_lineno || !last_input_filename ||
+ strcmp (last_input_filename, input_filename)))
+ {
+ warning ("traditional C rejects string concatenation");
+ last_lineno = input_line;
+ last_input_filename = input_filename;
+ }
+end ifc
+
+ VARRAY_TREE_INIT (strings, 32, "strings");
+ VARRAY_PUSH_TREE (strings, orig);
+
+ do
+ {
+ VARRAY_PUSH_TREE (strings, yylval.ttype);
+ next_type = c_lex (&yylval.ttype);
+ }
+ while (next_type == CPP_STRING
+ || next_type == CPP_WSTRING
+ || (next_type == CPP_NAME && yylexname () == STRING));
+
+ yylval.ttype = combine_strings (strings);
+ }
+ else
+ yylval.ttype = orig;
+
+ /* We will have always read one token too many. */
+ _cpp_backup_tokens (parse_in, 1);
+
+ return STRING;
+}
static inline int
_yylex ()
case CPP_SEMICOLON: OBJC_NEED_RAW_IDENTIFIER (0); return ';';
case CPP_EOF:
- if (cpp_pop_buffer (parse_in) == 0)
- return 0;
- goto get_next;
+ return 0;
case CPP_NAME:
- return yylexname ();
+ {
+ int ret = yylexname ();
+ if (ret == STRING)
+ return yylexstring ();
+ else
+ return ret;
+ }
case CPP_NUMBER:
case CPP_CHAR:
case CPP_STRING:
case CPP_WSTRING:
- return STRING;
-
+ return yylexstring ();
+
/* This token is Objective-C specific. It gives the next token
special significance. */
case CPP_ATSIGN:
tree after_at;
enum cpp_ttype after_at_type;
- cpp_start_lookahead (parse_in);
after_at_type = c_lex (&after_at);
if (after_at_type == CPP_NAME
&& C_IS_RESERVED_WORD (after_at)
&& OBJC_IS_AT_KEYWORD (C_RID_CODE (after_at)))
{
- cpp_stop_lookahead (parse_in, 1); /* accept this token */
yylval.ttype = after_at;
last_token = after_at_type;
return rid_to_yy [(int) C_RID_CODE (after_at)];
}
- cpp_stop_lookahead (parse_in, 0); /* put back this token */
+ _cpp_backup_tokens (parse_in, 1);
return '@';
}
end ifobjc
return r;
}
-/* Sets the value of the 'yydebug' variable to VALUE.
- This is a function so we don't have to have YYDEBUG defined
- in order to build the compiler. */
-
-void
-set_yydebug (value)
- int value;
-{
-#if YYDEBUG != 0
- yydebug = value;
-#else
- warning ("YYDEBUG not defined.");
-#endif
-}
-
/* Function used when yydebug is set, to print a token in more detail. */
static void
tree t = yyl.ttype;
fprintf (file, " [%s]", NAME(last_token));
-
+
switch (yychar)
{
case IDENTIFIER:
case TYPESPEC:
case TYPE_QUAL:
case SCSPEC:
+ case STATIC:
if (IDENTIFIER_POINTER (t))
fprintf (file, " `%s'", IDENTIFIER_POINTER (t));
break;
case CONSTANT:
fprintf (file, " %s", GET_MODE_NAME (TYPE_MODE (TREE_TYPE (t))));
if (TREE_CODE (t) == INTEGER_CST)
- fprintf (file,
-#if HOST_BITS_PER_WIDE_INT == 64
-#if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_INT
- " 0x%x%016x",
-#else
-#if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_LONG
- " 0x%lx%016lx",
-#else
- " 0x%llx%016llx",
-#endif
-#endif
-#else
-#if HOST_BITS_PER_WIDE_INT != HOST_BITS_PER_INT
- " 0x%lx%08lx",
-#else
- " 0x%x%08x",
-#endif
-#endif
- TREE_INT_CST_HIGH (t), TREE_INT_CST_LOW (t));
+ {
+ fputs (" ", file);
+ fprintf (file, HOST_WIDE_INT_PRINT_DOUBLE_HEX,
+ TREE_INT_CST_HIGH (t), TREE_INT_CST_LOW (t));
+ }
break;
}
}
/* This is not the ideal place to put these, but we have to get them out
of c-lex.c because cp/lex.c has its own versions. */
-/* Return something to represent absolute declarators containing a *.
- TARGET is the absolute declarator that the * contains.
- TYPE_QUALS is a list of modifiers such as const or volatile
- to apply to the pointer type, represented as identifiers.
+/* Free malloced parser stacks if necessary. */
- We return an INDIRECT_REF whose "contents" are TARGET
- and whose type is the modifier list. */
-
-tree
-make_pointer_declarator (type_quals, target)
- tree type_quals, target;
+void
+free_parser_stacks ()
{
- return build1 (INDIRECT_REF, type_quals, target);
+ if (malloced_yyss)
+ {
+ free (malloced_yyss);
+ free (malloced_yyvs);
+ }
}
+
+#include "gt-c-parse.h"
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