+++ /dev/null
-/*WARNING: This file is automatically generated!*/
-/* 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.
-
-This file is part of GCC.
-
-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.
-
-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 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.
- ifc ... end ifc conditionals contain code for C only.
- Sed commands in Makefile.in are used to convert this file into
- c-parse.y and into objc-parse.y. */
-
-/* To whomever it may concern: I have heard that such a thing was once
- written by AT&T, but I have never seen it. */
-
-%expect 10 /* shift/reduce conflicts, and no reduce/reduce conflicts. */
-
-%{
-#include "config.h"
-#include "system.h"
-#include "tree.h"
-#include "input.h"
-#include "cpplib.h"
-#include "intl.h"
-#include "timevar.h"
-#include "c-lex.h"
-#include "c-tree.h"
-#include "c-pragma.h"
-#include "flags.h"
-#include "output.h"
-#include "toplev.h"
-#include "ggc.h"
-
-#ifdef MULTIBYTE_CHARS
-#include <locale.h>
-#endif
-
-
-/* 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
-%}
-
-%start program
-
-%union {long itype; tree ttype; enum tree_code code;
- const char *filename; int lineno; }
-
-/* All identifiers that are not reserved words
- and are not declared typedefs in the current block */
-%token IDENTIFIER
-
-/* All identifiers that are declared typedefs in the current block.
- In some contexts, they are treated just like IDENTIFIER,
- but they can also serve as typespecs in declarations. */
-%token TYPENAME
-
-/* Reserved words that specify storage class.
- yylval contains an IDENTIFIER_NODE which indicates which one. */
-%token SCSPEC
-
-/* Reserved words that specify type.
- yylval contains an IDENTIFIER_NODE which indicates which one. */
-%token TYPESPEC
-
-/* Reserved words that qualify type: "const", "volatile", or "restrict".
- yylval contains an IDENTIFIER_NODE which indicates which one. */
-%token TYPE_QUAL
-
-/* Character or numeric constants.
- yylval is the node for the constant. */
-%token CONSTANT
-
-/* String constants in raw form.
- yylval is a STRING_CST node. */
-%token STRING
-
-/* "...", used for functions with variable arglists. */
-%token ELLIPSIS
-
-/* the reserved words */
-/* SCO include files test "ASM", so use something else. */
-%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 CHOOSE_EXPR TYPES_COMPATIBLE_P
-%token PTR_VALUE PTR_BASE PTR_EXTENT
-
-/* function name can be a string const or a var decl. */
-%token STRING_FUNC_NAME VAR_FUNC_NAME
-
-/* Add precedence rules to solve dangling else s/r conflict */
-%nonassoc IF
-%nonassoc ELSE
-
-/* Define the operator tokens and their precedences.
- The value is an integer because, if used, it is the tree code
- to use in the expression made from the operator. */
-
-%right <code> ASSIGN '='
-%right <code> '?' ':'
-%left <code> OROR
-%left <code> ANDAND
-%left <code> '|'
-%left <code> '^'
-%left <code> '&'
-%left <code> EQCOMPARE
-%left <code> ARITHCOMPARE
-%left <code> LSHIFT RSHIFT
-%left <code> '+' '-'
-%left <code> '*' '/' '%'
-%right <code> UNARY PLUSPLUS MINUSMINUS
-%left HYPERUNARY
-%left <code> POINTSAT '.' '(' '['
-
-/* The Objective-C keywords. These are included in C and in
- Objective C, so that the token codes are the same in both. */
-%token INTERFACE IMPLEMENTATION END SELECTOR DEFS ENCODE
-%token CLASSNAME PUBLIC PRIVATE PROTECTED PROTOCOL OBJECTNAME CLASS ALIAS
-
-%type <code> unop
-%type <ttype> ENUM STRUCT UNION IF ELSE WHILE DO FOR SWITCH CASE DEFAULT
-%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> 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_nosc_ts_sa_noea declspecs_nosc_ts_sa_ea
-%type <ttype> declspecs_sc_nots_nosa_noea declspecs_sc_nots_nosa_ea
-%type <ttype> declspecs_sc_nots_sa_noea declspecs_sc_nots_sa_ea
-%type <ttype> declspecs_sc_ts_nosa_noea declspecs_sc_ts_nosa_ea
-%type <ttype> declspecs_sc_ts_sa_noea declspecs_sc_ts_sa_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_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> 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> any_word extension
-
-%type <ttype> compstmt compstmt_start compstmt_nostart compstmt_primary_start
-%type <ttype> do_stmt_start poplevel stmt label
-
-%type <ttype> c99_block_start c99_block_end
-%type <ttype> declarator
-%type <ttype> notype_declarator after_type_declarator
-%type <ttype> parm_declarator
-%type <ttype> parm_declarator_starttypename parm_declarator_nostarttypename
-%type <ttype> array_declarator
-
-%type <ttype> structsp_attr structsp_nonattr
-%type <ttype> component_decl_list component_decl_list2
-%type <ttype> component_decl components components_notype component_declarator
-%type <ttype> component_notype_declarator
-%type <ttype> enumlist enumerator
-%type <ttype> struct_head union_head enum_head
-%type <ttype> typename absdcl absdcl1 absdcl1_ea absdcl1_noea
-%type <ttype> direct_absdcl1 absdcl_maybe_attribute
-%type <ttype> xexpr parms parm firstparm identifiers
-
-%type <ttype> parmlist parmlist_1 parmlist_2
-%type <ttype> parmlist_or_identifiers parmlist_or_identifiers_1
-%type <ttype> identifiers_or_typenames
-
-%type <itype> setspecs setspecs_fp
-
-%type <filename> save_filename
-%type <lineno> save_lineno
-\f
-\f
-%{
-/* 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;
- used by the stmt-rule immediately after simple_if returns. */
-static const char *if_stmt_file;
-static int if_stmt_line;
-
-/* List of types and structure classes of the current declaration. */
-static tree current_declspecs = NULL_TREE;
-static tree prefix_attributes = NULL_TREE;
-
-/* 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;
-
-/* Stack of saved values of current_declspecs, prefix_attributes and
- all_prefix_attributes. */
-static tree declspec_stack;
-
-/* PUSH_DECLSPEC_STACK is called from setspecs; POP_DECLSPEC_STACK
- should be called from the productions making use of setspecs. */
-#define PUSH_DECLSPEC_STACK \
- do { \
- declspec_stack = tree_cons (build_tree_list (prefix_attributes, \
- all_prefix_attributes), \
- current_declspecs, \
- declspec_stack); \
- } while (0)
-
-#define POP_DECLSPEC_STACK \
- do { \
- current_declspecs = TREE_VALUE (declspec_stack); \
- prefix_attributes = TREE_PURPOSE (TREE_PURPOSE (declspec_stack)); \
- all_prefix_attributes = TREE_VALUE (TREE_PURPOSE (declspec_stack)); \
- declspec_stack = TREE_CHAIN (declspec_stack); \
- } while (0)
-
-/* For __extension__, save/restore the warning flags which are
- controlled by __extension__. */
-#define SAVE_WARN_FLAGS() \
- size_int (pedantic \
- | (warn_pointer_arith << 1) \
- | (warn_traditional << 2))
-
-#define RESTORE_WARN_FLAGS(tval) \
- do { \
- int val = tree_low_cst (tval, 0); \
- pedantic = val & 1; \
- warn_pointer_arith = (val >> 1) & 1; \
- warn_traditional = (val >> 2) & 1; \
- } while (0)
-
-
-#define OBJC_NEED_RAW_IDENTIFIER(VAL) /* nothing */
-
-/* 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 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. */
-void
-c_parse_init ()
-{
- init_reswords ();
-
- 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);
-}
-
-%}
-\f
-%%
-program: /* empty */
- { if (pedantic)
- pedwarn ("ISO C forbids an empty source file");
- finish_file ();
- }
- | extdefs
- {
- /* In case there were missing closebraces,
- get us back to the global binding level. */
- while (! global_bindings_p ())
- poplevel (0, 0, 0);
- finish_fname_decls ();
- finish_file ();
- }
- ;
-
-/* the reason for the strange actions in this rule
- is so that notype_initdecls when reached via datadef
- can find a valid list of type and sc specs in $0. */
-
-extdefs:
- {$<ttype>$ = NULL_TREE; } extdef
- | extdefs {$<ttype>$ = NULL_TREE; ggc_collect(); } extdef
- ;
-
-extdef:
- fndef
- | datadef
- | ASM_KEYWORD '(' expr ')' ';'
- { STRIP_NOPS ($3);
- if ((TREE_CODE ($3) == ADDR_EXPR
- && TREE_CODE (TREE_OPERAND ($3, 0)) == STRING_CST)
- || TREE_CODE ($3) == STRING_CST)
- assemble_asm ($3);
- else
- error ("argument of `asm' is not a constant string"); }
- | extension extdef
- { RESTORE_WARN_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");
-
- POP_DECLSPEC_STACK; }
- | declspecs_nots setspecs notype_initdecls ';'
- { POP_DECLSPEC_STACK; }
- | declspecs_ts setspecs initdecls ';'
- { POP_DECLSPEC_STACK; }
- | declspecs ';'
- { shadow_tag ($1); }
- | error ';'
- | error '}'
- | ';'
- { if (pedantic)
- pedwarn ("ISO C does not allow extra `;' outside of a function"); }
- ;
-\f
-fndef:
- declspecs_ts setspecs declarator
- { if (! start_function (current_declspecs, $3,
- all_prefix_attributes))
- YYERROR1;
- }
- old_style_parm_decls
- { store_parm_decls (); }
- save_filename save_lineno compstmt_or_error
- { DECL_SOURCE_FILE (current_function_decl) = $7;
- DECL_SOURCE_LINE (current_function_decl) = $8;
- finish_function (0, 1);
- POP_DECLSPEC_STACK; }
- | declspecs_ts setspecs declarator error
- { POP_DECLSPEC_STACK; }
- | declspecs_nots setspecs notype_declarator
- { if (! start_function (current_declspecs, $3,
- all_prefix_attributes))
- YYERROR1;
- }
- old_style_parm_decls
- { store_parm_decls (); }
- save_filename save_lineno compstmt_or_error
- { DECL_SOURCE_FILE (current_function_decl) = $7;
- DECL_SOURCE_LINE (current_function_decl) = $8;
- finish_function (0, 1);
- POP_DECLSPEC_STACK; }
- | declspecs_nots setspecs notype_declarator error
- { POP_DECLSPEC_STACK; }
- | setspecs notype_declarator
- { if (! start_function (NULL_TREE, $2,
- all_prefix_attributes))
- YYERROR1;
- }
- old_style_parm_decls
- { store_parm_decls (); }
- save_filename save_lineno compstmt_or_error
- { DECL_SOURCE_FILE (current_function_decl) = $6;
- DECL_SOURCE_LINE (current_function_decl) = $7;
- finish_function (0, 1);
- POP_DECLSPEC_STACK; }
- | setspecs notype_declarator error
- { POP_DECLSPEC_STACK; }
- ;
-
-identifier:
- IDENTIFIER
- | TYPENAME
- ;
-
-unop: '&'
- { $$ = ADDR_EXPR; }
- | '-'
- { $$ = NEGATE_EXPR; }
- | '+'
- { $$ = CONVERT_EXPR;
- if (warn_traditional && !in_system_header)
- warning ("traditional C rejects the unary plus operator");
- }
- | PLUSPLUS
- { $$ = PREINCREMENT_EXPR; }
- | MINUSMINUS
- { $$ = PREDECREMENT_EXPR; }
- | '~'
- { $$ = BIT_NOT_EXPR; }
- | '!'
- { $$ = TRUTH_NOT_EXPR; }
- ;
-
-expr: nonnull_exprlist
- { $$ = build_compound_expr ($1); }
- ;
-
-exprlist:
- /* empty */
- { $$ = NULL_TREE; }
- | nonnull_exprlist
- ;
-
-nonnull_exprlist:
- expr_no_commas
- { $$ = build_tree_list (NULL_TREE, $1); }
- | nonnull_exprlist ',' expr_no_commas
- { chainon ($1, build_tree_list (NULL_TREE, $3)); }
- ;
-
-unary_expr:
- primary
- | '*' cast_expr %prec UNARY
- { $$ = build_indirect_ref ($2, "unary *"); }
- /* __extension__ turns off -pedantic for following primary. */
- | extension cast_expr %prec UNARY
- { $$ = $2;
- RESTORE_WARN_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, $$, 0);
- } }
-*/
- | sizeof unary_expr %prec UNARY
- { skip_evaluation--;
- if (TREE_CODE ($2) == COMPONENT_REF
- && DECL_C_BIT_FIELD (TREE_OPERAND ($2, 1)))
- error ("`sizeof' applied to a bit-field");
- $$ = c_sizeof (TREE_TYPE ($2)); }
- | sizeof '(' typename ')' %prec HYPERUNARY
- { skip_evaluation--;
- $$ = c_sizeof (groktypename ($3)); }
- | alignof unary_expr %prec UNARY
- { skip_evaluation--;
- $$ = c_alignof_expr ($2); }
- | alignof '(' typename ')' %prec HYPERUNARY
- { skip_evaluation--;
- $$ = c_alignof (groktypename ($3)); }
- | REALPART cast_expr %prec UNARY
- { $$ = build_unary_op (REALPART_EXPR, $2, 0); }
- | IMAGPART cast_expr %prec UNARY
- { $$ = build_unary_op (IMAGPART_EXPR, $2, 0); }
- ;
-
-sizeof:
- SIZEOF { skip_evaluation++; }
- ;
-
-alignof:
- ALIGNOF { skip_evaluation++; }
- ;
-
-typeof:
- TYPEOF { skip_evaluation++; }
- ;
-
-cast_expr:
- unary_expr
- | '(' typename ')' cast_expr %prec UNARY
- { $$ = c_cast_expr ($2, $4); }
- ;
-
-expr_no_commas:
- cast_expr
- | expr_no_commas '+' expr_no_commas
- { $$ = parser_build_binary_op ($2, $1, $3); }
- | expr_no_commas '-' expr_no_commas
- { $$ = parser_build_binary_op ($2, $1, $3); }
- | expr_no_commas '*' expr_no_commas
- { $$ = parser_build_binary_op ($2, $1, $3); }
- | expr_no_commas '/' expr_no_commas
- { $$ = parser_build_binary_op ($2, $1, $3); }
- | expr_no_commas '%' expr_no_commas
- { $$ = parser_build_binary_op ($2, $1, $3); }
- | expr_no_commas LSHIFT expr_no_commas
- { $$ = parser_build_binary_op ($2, $1, $3); }
- | expr_no_commas RSHIFT expr_no_commas
- { $$ = parser_build_binary_op ($2, $1, $3); }
- | expr_no_commas ARITHCOMPARE expr_no_commas
- { $$ = parser_build_binary_op ($2, $1, $3); }
- | expr_no_commas EQCOMPARE expr_no_commas
- { $$ = parser_build_binary_op ($2, $1, $3); }
- | expr_no_commas '&' expr_no_commas
- { $$ = parser_build_binary_op ($2, $1, $3); }
- | expr_no_commas '|' expr_no_commas
- { $$ = parser_build_binary_op ($2, $1, $3); }
- | expr_no_commas '^' expr_no_commas
- { $$ = parser_build_binary_op ($2, $1, $3); }
- | expr_no_commas ANDAND
- { $1 = truthvalue_conversion (default_conversion ($1));
- skip_evaluation += $1 == boolean_false_node; }
- expr_no_commas
- { skip_evaluation -= $1 == boolean_false_node;
- $$ = parser_build_binary_op (TRUTH_ANDIF_EXPR, $1, $4); }
- | expr_no_commas OROR
- { $1 = truthvalue_conversion (default_conversion ($1));
- skip_evaluation += $1 == boolean_true_node; }
- expr_no_commas
- { skip_evaluation -= $1 == boolean_true_node;
- $$ = parser_build_binary_op (TRUTH_ORIF_EXPR, $1, $4); }
- | expr_no_commas '?'
- { $1 = truthvalue_conversion (default_conversion ($1));
- skip_evaluation += $1 == boolean_false_node; }
- expr ':'
- { skip_evaluation += (($1 == boolean_true_node)
- - ($1 == boolean_false_node)); }
- expr_no_commas
- { skip_evaluation -= $1 == boolean_true_node;
- $$ = build_conditional_expr ($1, $4, $7); }
- | expr_no_commas '?'
- { if (pedantic)
- pedwarn ("ISO C forbids omitting the middle term of a ?: expression");
- /* Make sure first operand is calculated only once. */
- $<ttype>2 = save_expr ($1);
- $1 = truthvalue_conversion (default_conversion ($<ttype>2));
- skip_evaluation += $1 == boolean_true_node; }
- ':' expr_no_commas
- { skip_evaluation -= $1 == boolean_true_node;
- $$ = build_conditional_expr ($1, $<ttype>2, $5); }
- | expr_no_commas '=' expr_no_commas
- { char class;
- $$ = build_modify_expr ($1, NOP_EXPR, $3);
- class = TREE_CODE_CLASS (TREE_CODE ($$));
- 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. */
- class = TREE_CODE_CLASS (TREE_CODE ($$));
- if (IS_EXPR_CODE_CLASS (class))
- C_SET_EXP_ORIGINAL_CODE ($$, ERROR_MARK);
- }
- ;
-
-primary:
- IDENTIFIER
- {
- if (yychar == YYEMPTY)
- yychar = YYLEX;
- $$ = build_external_ref ($1, yychar == '(');
- }
- | CONSTANT
- | string
- { $$ = combine_strings ($1); }
- | VAR_FUNC_NAME
- { $$ = fname_decl (C_RID_CODE ($$), $$); }
- | '(' typename ')' '{'
- { start_init (NULL_TREE, NULL, 0);
- $2 = groktypename ($2);
- really_start_incremental_init ($2); }
- initlist_maybe_comma '}' %prec UNARY
- { tree constructor = pop_init_level (0);
- tree type = $2;
- finish_init ();
-
- if (pedantic && ! flag_isoc99)
- pedwarn ("ISO C89 forbids compound literals");
- $$ = build_compound_literal (type, constructor);
- }
- | '(' expr ')'
- { char class = TREE_CODE_CLASS (TREE_CODE ($2));
- if (IS_EXPR_CODE_CLASS (class))
- C_SET_EXP_ORIGINAL_CODE ($2, ERROR_MARK);
- $$ = $2; }
- | '(' error ')'
- { $$ = error_mark_node; }
- | compstmt_primary_start compstmt_nostart ')'
- { tree saved_last_tree;
-
- if (pedantic)
- pedwarn ("ISO C forbids braced-groups within expressions");
- pop_label_level ();
-
- saved_last_tree = COMPOUND_BODY ($1);
- RECHAIN_STMTS ($1, COMPOUND_BODY ($1));
- last_tree = saved_last_tree;
- TREE_CHAIN (last_tree) = NULL_TREE;
- if (!last_expr_type)
- last_expr_type = void_type_node;
- $$ = build1 (STMT_EXPR, last_expr_type, $1);
- TREE_SIDE_EFFECTS ($$) = 1;
- }
- | compstmt_primary_start error ')'
- {
- pop_label_level ();
- last_tree = COMPOUND_BODY ($1);
- TREE_CHAIN (last_tree) = NULL_TREE;
- $$ = error_mark_node;
- }
- | primary '(' exprlist ')' %prec '.'
- { $$ = 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
- {
- $$ = build_component_ref ($1, $3);
- }
- | primary POINTSAT identifier
- {
- tree expr = build_indirect_ref ($1, "->");
-
- $$ = build_component_ref (expr, $3);
- }
- | primary PLUSPLUS
- { $$ = build_unary_op (POSTINCREMENT_EXPR, $1, 0); }
- | primary MINUSMINUS
- { $$ = build_unary_op (POSTDECREMENT_EXPR, $1, 0); }
- ;
-
-/* Produces a STRING_CST with perhaps more STRING_CSTs chained onto it. */
-string:
- STRING
- | string STRING
- {
- static int last_lineno = 0;
- static const char *last_input_filename = 0;
- $$ = chainon ($1, $2);
- 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;
- }
- }
- ;
-
-
-old_style_parm_decls:
- /* empty */
- | 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
- except that they do not allow nested functions.
- They are used for old-style parm decls. */
-lineno_datadecl:
- save_filename save_lineno datadecl
- { }
- ;
-
-datadecls:
- lineno_datadecl
- | errstmt
- | datadecls lineno_datadecl
- | lineno_datadecl errstmt
- ;
-
-/* We don't allow prefix attributes here because they cause reduce/reduce
- conflicts: we can't know whether we're parsing a function decl with
- attribute suffix, or function defn with attribute prefix on first old
- style parm. */
-datadecl:
- declspecs_ts_nosa setspecs initdecls ';'
- { POP_DECLSPEC_STACK; }
- | declspecs_nots_nosa setspecs notype_initdecls ';'
- { POP_DECLSPEC_STACK; }
- | declspecs_ts_nosa ';'
- { shadow_tag_warned ($1, 1);
- pedwarn ("empty declaration"); }
- | declspecs_nots_nosa ';'
- { pedwarn ("empty declaration"); }
- ;
-
-/* This combination which saves a lineno before a decl
- is the normal thing to use, rather than decl itself.
- This is to avoid shift/reduce conflicts in contexts
- where statement labels are allowed. */
-lineno_decl:
- save_filename save_lineno decl
- { }
- ;
-
-/* records the type and storage class specs to use for processing
- the declarators that follow.
- Maintains a stack of outer-level values of current_declspecs,
- for the sake of parm declarations nested in function declarators. */
-setspecs: /* empty */
- { pending_xref_error ();
- PUSH_DECLSPEC_STACK;
- split_specs_attrs ($<ttype>0,
- ¤t_declspecs, &prefix_attributes);
- all_prefix_attributes = prefix_attributes; }
- ;
-
-/* Possibly attributes after a comma, which should reset all_prefix_attributes
- to prefix_attributes with these ones chained on the front. */
-maybe_resetattrs:
- maybe_attribute
- { all_prefix_attributes = chainon ($1, prefix_attributes); }
- ;
-
-decl:
- declspecs_ts setspecs initdecls ';'
- { POP_DECLSPEC_STACK; }
- | declspecs_nots setspecs notype_initdecls ';'
- { POP_DECLSPEC_STACK; }
- | declspecs_ts setspecs nested_function
- { POP_DECLSPEC_STACK; }
- | declspecs_nots setspecs notype_nested_function
- { POP_DECLSPEC_STACK; }
- | declspecs ';'
- { shadow_tag ($1); }
- | extension decl
- { RESTORE_WARN_FLAGS ($1); }
- ;
-
-/* A list of declaration specifiers. These are:
-
- - Storage class specifiers (SCSPEC), which for GCC currently include
- function specifiers ("inline").
-
- - Type specifiers (typespec_*).
-
- - Type qualifiers (TYPE_QUAL).
-
- - Attribute specifier lists (attributes).
-
- These are stored as a TREE_LIST; the head of the list is the last
- item in the specifier list. Each entry in the list has either a
- TREE_PURPOSE that is an attribute specifier list, or a TREE_VALUE that
- is a single other specifier or qualifier; and a TREE_CHAIN that is the
- rest of the list. TREE_STATIC is set on the list if something other
- than a storage class specifier or attribute has been seen; this is used
- to warn for the obsolescent usage of storage class specifiers other than
- at the start of the list. (Doing this properly would require function
- specifiers to be handled separately from storage class specifiers.)
-
- The various cases below are classified according to:
-
- (a) Whether a storage class specifier is included or not; some
- places in the grammar disallow storage class specifiers (_sc or _nosc).
-
- (b) Whether a type specifier has been seen; after a type specifier,
- a typedef name is an identifier to redeclare (_ts or _nots).
-
- (c) Whether the list starts with an attribute; in certain places,
- the grammar requires specifiers that don't start with an attribute
- (_sa or _nosa).
-
- (d) Whether the list ends with an attribute (or a specifier such that
- any following attribute would have been parsed as part of that specifier);
- this avoids shift-reduce conflicts in the parsing of attributes
- (_ea or _noea).
-
- TODO:
-
- (i) Distinguish between function specifiers and storage class specifiers,
- at least for the purpose of warnings about obsolescent usage.
-
- (ii) Halve the number of productions here by eliminating the _sc/_nosc
- distinction and instead checking where required that storage class
- specifiers aren't present. */
-
-/* Declspecs which contain at least one type specifier or typedef name.
- (Just `const' or `volatile' is not enough.)
- A typedef'd name following these is taken as a name to be declared.
- Declspecs have a non-NULL TREE_VALUE, attributes do not. */
-
-declspecs_nosc_nots_nosa_noea:
- TYPE_QUAL
- { $$ = tree_cons (NULL_TREE, $1, NULL_TREE);
- TREE_STATIC ($$) = 1; }
- | declspecs_nosc_nots_nosa_noea TYPE_QUAL
- { $$ = tree_cons (NULL_TREE, $2, $1);
- TREE_STATIC ($$) = 1; }
- | declspecs_nosc_nots_nosa_ea TYPE_QUAL
- { $$ = tree_cons (NULL_TREE, $2, $1);
- TREE_STATIC ($$) = 1; }
- ;
-
-declspecs_nosc_nots_nosa_ea:
- declspecs_nosc_nots_nosa_noea attributes
- { $$ = tree_cons ($2, NULL_TREE, $1);
- TREE_STATIC ($$) = TREE_STATIC ($1); }
- ;
-
-declspecs_nosc_nots_sa_noea:
- declspecs_nosc_nots_sa_noea TYPE_QUAL
- { $$ = tree_cons (NULL_TREE, $2, $1);
- TREE_STATIC ($$) = 1; }
- | declspecs_nosc_nots_sa_ea TYPE_QUAL
- { $$ = tree_cons (NULL_TREE, $2, $1);
- TREE_STATIC ($$) = 1; }
- ;
-
-declspecs_nosc_nots_sa_ea:
- attributes
- { $$ = tree_cons ($1, NULL_TREE, NULL_TREE);
- TREE_STATIC ($$) = 0; }
- | declspecs_nosc_nots_sa_noea attributes
- { $$ = tree_cons ($2, NULL_TREE, $1);
- TREE_STATIC ($$) = TREE_STATIC ($1); }
- ;
-
-declspecs_nosc_ts_nosa_noea:
- typespec_nonattr
- { $$ = tree_cons (NULL_TREE, $1, NULL_TREE);
- TREE_STATIC ($$) = 1; }
- | declspecs_nosc_ts_nosa_noea TYPE_QUAL
- { $$ = tree_cons (NULL_TREE, $2, $1);
- TREE_STATIC ($$) = 1; }
- | declspecs_nosc_ts_nosa_ea TYPE_QUAL
- { $$ = tree_cons (NULL_TREE, $2, $1);
- TREE_STATIC ($$) = 1; }
- | declspecs_nosc_ts_nosa_noea typespec_reserved_nonattr
- { $$ = tree_cons (NULL_TREE, $2, $1);
- TREE_STATIC ($$) = 1; }
- | declspecs_nosc_ts_nosa_ea typespec_reserved_nonattr
- { $$ = tree_cons (NULL_TREE, $2, $1);
- TREE_STATIC ($$) = 1; }
- | declspecs_nosc_nots_nosa_noea typespec_nonattr
- { $$ = tree_cons (NULL_TREE, $2, $1);
- TREE_STATIC ($$) = 1; }
- | declspecs_nosc_nots_nosa_ea typespec_nonattr
- { $$ = tree_cons (NULL_TREE, $2, $1);
- TREE_STATIC ($$) = 1; }
- ;
-
-declspecs_nosc_ts_nosa_ea:
- typespec_attr
- { $$ = tree_cons (NULL_TREE, $1, NULL_TREE);
- TREE_STATIC ($$) = 1; }
- | declspecs_nosc_ts_nosa_noea attributes
- { $$ = tree_cons ($2, NULL_TREE, $1);
- TREE_STATIC ($$) = TREE_STATIC ($1); }
- | declspecs_nosc_ts_nosa_noea typespec_reserved_attr
- { $$ = tree_cons (NULL_TREE, $2, $1);
- TREE_STATIC ($$) = 1; }
- | declspecs_nosc_ts_nosa_ea typespec_reserved_attr
- { $$ = tree_cons (NULL_TREE, $2, $1);
- TREE_STATIC ($$) = 1; }
- | declspecs_nosc_nots_nosa_noea typespec_attr
- { $$ = tree_cons (NULL_TREE, $2, $1);
- TREE_STATIC ($$) = 1; }
- | declspecs_nosc_nots_nosa_ea typespec_attr
- { $$ = tree_cons (NULL_TREE, $2, $1);
- TREE_STATIC ($$) = 1; }
- ;
-
-declspecs_nosc_ts_sa_noea:
- declspecs_nosc_ts_sa_noea TYPE_QUAL
- { $$ = tree_cons (NULL_TREE, $2, $1);
- TREE_STATIC ($$) = 1; }
- | declspecs_nosc_ts_sa_ea TYPE_QUAL
- { $$ = tree_cons (NULL_TREE, $2, $1);
- TREE_STATIC ($$) = 1; }
- | declspecs_nosc_ts_sa_noea typespec_reserved_nonattr
- { $$ = tree_cons (NULL_TREE, $2, $1);
- TREE_STATIC ($$) = 1; }
- | declspecs_nosc_ts_sa_ea typespec_reserved_nonattr
- { $$ = tree_cons (NULL_TREE, $2, $1);
- TREE_STATIC ($$) = 1; }
- | declspecs_nosc_nots_sa_noea typespec_nonattr
- { $$ = tree_cons (NULL_TREE, $2, $1);
- TREE_STATIC ($$) = 1; }
- | declspecs_nosc_nots_sa_ea typespec_nonattr
- { $$ = tree_cons (NULL_TREE, $2, $1);
- TREE_STATIC ($$) = 1; }
- ;
-
-declspecs_nosc_ts_sa_ea:
- declspecs_nosc_ts_sa_noea attributes
- { $$ = tree_cons ($2, NULL_TREE, $1);
- TREE_STATIC ($$) = TREE_STATIC ($1); }
- | declspecs_nosc_ts_sa_noea typespec_reserved_attr
- { $$ = tree_cons (NULL_TREE, $2, $1);
- TREE_STATIC ($$) = 1; }
- | declspecs_nosc_ts_sa_ea typespec_reserved_attr
- { $$ = tree_cons (NULL_TREE, $2, $1);
- TREE_STATIC ($$) = 1; }
- | declspecs_nosc_nots_sa_noea typespec_attr
- { $$ = tree_cons (NULL_TREE, $2, $1);
- TREE_STATIC ($$) = 1; }
- | declspecs_nosc_nots_sa_ea typespec_attr
- { $$ = tree_cons (NULL_TREE, $2, $1);
- TREE_STATIC ($$) = 1; }
- ;
-
-declspecs_sc_nots_nosa_noea:
- SCSPEC
- { $$ = tree_cons (NULL_TREE, $1, NULL_TREE);
- TREE_STATIC ($$) = 0; }
- | declspecs_sc_nots_nosa_noea TYPE_QUAL
- { $$ = tree_cons (NULL_TREE, $2, $1);
- TREE_STATIC ($$) = 1; }
- | declspecs_sc_nots_nosa_ea TYPE_QUAL
- { $$ = tree_cons (NULL_TREE, $2, $1);
- TREE_STATIC ($$) = 1; }
- | declspecs_nosc_nots_nosa_noea SCSPEC
- { if (extra_warnings && TREE_STATIC ($1))
- warning ("`%s' is not at beginning of declaration",
- IDENTIFIER_POINTER ($2));
- $$ = tree_cons (NULL_TREE, $2, $1);
- TREE_STATIC ($$) = TREE_STATIC ($1); }
- | declspecs_nosc_nots_nosa_ea SCSPEC
- { if (extra_warnings && TREE_STATIC ($1))
- warning ("`%s' is not at beginning of declaration",
- IDENTIFIER_POINTER ($2));
- $$ = tree_cons (NULL_TREE, $2, $1);
- TREE_STATIC ($$) = TREE_STATIC ($1); }
- | declspecs_sc_nots_nosa_noea SCSPEC
- { if (extra_warnings && TREE_STATIC ($1))
- warning ("`%s' is not at beginning of declaration",
- IDENTIFIER_POINTER ($2));
- $$ = tree_cons (NULL_TREE, $2, $1);
- TREE_STATIC ($$) = TREE_STATIC ($1); }
- | declspecs_sc_nots_nosa_ea SCSPEC
- { if (extra_warnings && TREE_STATIC ($1))
- warning ("`%s' is not at beginning of declaration",
- IDENTIFIER_POINTER ($2));
- $$ = tree_cons (NULL_TREE, $2, $1);
- TREE_STATIC ($$) = TREE_STATIC ($1); }
- ;
-
-declspecs_sc_nots_nosa_ea:
- declspecs_sc_nots_nosa_noea attributes
- { $$ = tree_cons ($2, NULL_TREE, $1);
- TREE_STATIC ($$) = TREE_STATIC ($1); }
- ;
-
-declspecs_sc_nots_sa_noea:
- declspecs_sc_nots_sa_noea TYPE_QUAL
- { $$ = tree_cons (NULL_TREE, $2, $1);
- TREE_STATIC ($$) = 1; }
- | declspecs_sc_nots_sa_ea TYPE_QUAL
- { $$ = tree_cons (NULL_TREE, $2, $1);
- TREE_STATIC ($$) = 1; }
- | declspecs_nosc_nots_sa_noea SCSPEC
- { if (extra_warnings && TREE_STATIC ($1))
- warning ("`%s' is not at beginning of declaration",
- IDENTIFIER_POINTER ($2));
- $$ = tree_cons (NULL_TREE, $2, $1);
- TREE_STATIC ($$) = TREE_STATIC ($1); }
- | declspecs_nosc_nots_sa_ea SCSPEC
- { if (extra_warnings && TREE_STATIC ($1))
- warning ("`%s' is not at beginning of declaration",
- IDENTIFIER_POINTER ($2));
- $$ = tree_cons (NULL_TREE, $2, $1);
- TREE_STATIC ($$) = TREE_STATIC ($1); }
- | declspecs_sc_nots_sa_noea SCSPEC
- { if (extra_warnings && TREE_STATIC ($1))
- warning ("`%s' is not at beginning of declaration",
- IDENTIFIER_POINTER ($2));
- $$ = tree_cons (NULL_TREE, $2, $1);
- TREE_STATIC ($$) = TREE_STATIC ($1); }
- | declspecs_sc_nots_sa_ea SCSPEC
- { if (extra_warnings && TREE_STATIC ($1))
- warning ("`%s' is not at beginning of declaration",
- IDENTIFIER_POINTER ($2));
- $$ = tree_cons (NULL_TREE, $2, $1);
- TREE_STATIC ($$) = TREE_STATIC ($1); }
- ;
-
-declspecs_sc_nots_sa_ea:
- declspecs_sc_nots_sa_noea attributes
- { $$ = tree_cons ($2, NULL_TREE, $1);
- TREE_STATIC ($$) = TREE_STATIC ($1); }
- ;
-
-declspecs_sc_ts_nosa_noea:
- declspecs_sc_ts_nosa_noea TYPE_QUAL
- { $$ = tree_cons (NULL_TREE, $2, $1);
- TREE_STATIC ($$) = 1; }
- | declspecs_sc_ts_nosa_ea TYPE_QUAL
- { $$ = tree_cons (NULL_TREE, $2, $1);
- TREE_STATIC ($$) = 1; }
- | declspecs_sc_ts_nosa_noea typespec_reserved_nonattr
- { $$ = tree_cons (NULL_TREE, $2, $1);
- TREE_STATIC ($$) = 1; }
- | declspecs_sc_ts_nosa_ea typespec_reserved_nonattr
- { $$ = tree_cons (NULL_TREE, $2, $1);
- TREE_STATIC ($$) = 1; }
- | declspecs_sc_nots_nosa_noea typespec_nonattr
- { $$ = tree_cons (NULL_TREE, $2, $1);
- TREE_STATIC ($$) = 1; }
- | declspecs_sc_nots_nosa_ea typespec_nonattr
- { $$ = tree_cons (NULL_TREE, $2, $1);
- TREE_STATIC ($$) = 1; }
- | declspecs_nosc_ts_nosa_noea SCSPEC
- { if (extra_warnings && TREE_STATIC ($1))
- warning ("`%s' is not at beginning of declaration",
- IDENTIFIER_POINTER ($2));
- $$ = tree_cons (NULL_TREE, $2, $1);
- TREE_STATIC ($$) = TREE_STATIC ($1); }
- | declspecs_nosc_ts_nosa_ea SCSPEC
- { if (extra_warnings && TREE_STATIC ($1))
- warning ("`%s' is not at beginning of declaration",
- IDENTIFIER_POINTER ($2));
- $$ = tree_cons (NULL_TREE, $2, $1);
- TREE_STATIC ($$) = TREE_STATIC ($1); }
- | declspecs_sc_ts_nosa_noea SCSPEC
- { if (extra_warnings && TREE_STATIC ($1))
- warning ("`%s' is not at beginning of declaration",
- IDENTIFIER_POINTER ($2));
- $$ = tree_cons (NULL_TREE, $2, $1);
- TREE_STATIC ($$) = TREE_STATIC ($1); }
- | declspecs_sc_ts_nosa_ea SCSPEC
- { if (extra_warnings && TREE_STATIC ($1))
- warning ("`%s' is not at beginning of declaration",
- IDENTIFIER_POINTER ($2));
- $$ = tree_cons (NULL_TREE, $2, $1);
- TREE_STATIC ($$) = TREE_STATIC ($1); }
- ;
-
-declspecs_sc_ts_nosa_ea:
- declspecs_sc_ts_nosa_noea attributes
- { $$ = tree_cons ($2, NULL_TREE, $1);
- TREE_STATIC ($$) = TREE_STATIC ($1); }
- | declspecs_sc_ts_nosa_noea typespec_reserved_attr
- { $$ = tree_cons (NULL_TREE, $2, $1);
- TREE_STATIC ($$) = 1; }
- | declspecs_sc_ts_nosa_ea typespec_reserved_attr
- { $$ = tree_cons (NULL_TREE, $2, $1);
- TREE_STATIC ($$) = 1; }
- | declspecs_sc_nots_nosa_noea typespec_attr
- { $$ = tree_cons (NULL_TREE, $2, $1);
- TREE_STATIC ($$) = 1; }
- | declspecs_sc_nots_nosa_ea typespec_attr
- { $$ = tree_cons (NULL_TREE, $2, $1);
- TREE_STATIC ($$) = 1; }
- ;
-
-declspecs_sc_ts_sa_noea:
- declspecs_sc_ts_sa_noea TYPE_QUAL
- { $$ = tree_cons (NULL_TREE, $2, $1);
- TREE_STATIC ($$) = 1; }
- | declspecs_sc_ts_sa_ea TYPE_QUAL
- { $$ = tree_cons (NULL_TREE, $2, $1);
- TREE_STATIC ($$) = 1; }
- | declspecs_sc_ts_sa_noea typespec_reserved_nonattr
- { $$ = tree_cons (NULL_TREE, $2, $1);
- TREE_STATIC ($$) = 1; }
- | declspecs_sc_ts_sa_ea typespec_reserved_nonattr
- { $$ = tree_cons (NULL_TREE, $2, $1);
- TREE_STATIC ($$) = 1; }
- | declspecs_sc_nots_sa_noea typespec_nonattr
- { $$ = tree_cons (NULL_TREE, $2, $1);
- TREE_STATIC ($$) = 1; }
- | declspecs_sc_nots_sa_ea typespec_nonattr
- { $$ = tree_cons (NULL_TREE, $2, $1);
- TREE_STATIC ($$) = 1; }
- | declspecs_nosc_ts_sa_noea SCSPEC
- { if (extra_warnings && TREE_STATIC ($1))
- warning ("`%s' is not at beginning of declaration",
- IDENTIFIER_POINTER ($2));
- $$ = tree_cons (NULL_TREE, $2, $1);
- TREE_STATIC ($$) = TREE_STATIC ($1); }
- | declspecs_nosc_ts_sa_ea SCSPEC
- { if (extra_warnings && TREE_STATIC ($1))
- warning ("`%s' is not at beginning of declaration",
- IDENTIFIER_POINTER ($2));
- $$ = tree_cons (NULL_TREE, $2, $1);
- TREE_STATIC ($$) = TREE_STATIC ($1); }
- | declspecs_sc_ts_sa_noea SCSPEC
- { if (extra_warnings && TREE_STATIC ($1))
- warning ("`%s' is not at beginning of declaration",
- IDENTIFIER_POINTER ($2));
- $$ = tree_cons (NULL_TREE, $2, $1);
- TREE_STATIC ($$) = TREE_STATIC ($1); }
- | declspecs_sc_ts_sa_ea SCSPEC
- { if (extra_warnings && TREE_STATIC ($1))
- warning ("`%s' is not at beginning of declaration",
- IDENTIFIER_POINTER ($2));
- $$ = tree_cons (NULL_TREE, $2, $1);
- TREE_STATIC ($$) = TREE_STATIC ($1); }
- ;
-
-declspecs_sc_ts_sa_ea:
- declspecs_sc_ts_sa_noea attributes
- { $$ = tree_cons ($2, NULL_TREE, $1);
- TREE_STATIC ($$) = TREE_STATIC ($1); }
- | declspecs_sc_ts_sa_noea typespec_reserved_attr
- { $$ = tree_cons (NULL_TREE, $2, $1);
- TREE_STATIC ($$) = 1; }
- | declspecs_sc_ts_sa_ea typespec_reserved_attr
- { $$ = tree_cons (NULL_TREE, $2, $1);
- TREE_STATIC ($$) = 1; }
- | declspecs_sc_nots_sa_noea typespec_attr
- { $$ = tree_cons (NULL_TREE, $2, $1);
- TREE_STATIC ($$) = 1; }
- | declspecs_sc_nots_sa_ea typespec_attr
- { $$ = tree_cons (NULL_TREE, $2, $1);
- TREE_STATIC ($$) = 1; }
- ;
-
-/* Particular useful classes of declspecs. */
-declspecs_ts:
- declspecs_nosc_ts_nosa_noea
- | declspecs_nosc_ts_nosa_ea
- | declspecs_nosc_ts_sa_noea
- | declspecs_nosc_ts_sa_ea
- | declspecs_sc_ts_nosa_noea
- | declspecs_sc_ts_nosa_ea
- | declspecs_sc_ts_sa_noea
- | declspecs_sc_ts_sa_ea
- ;
-
-declspecs_nots:
- declspecs_nosc_nots_nosa_noea
- | declspecs_nosc_nots_nosa_ea
- | declspecs_nosc_nots_sa_noea
- | declspecs_nosc_nots_sa_ea
- | declspecs_sc_nots_nosa_noea
- | declspecs_sc_nots_nosa_ea
- | declspecs_sc_nots_sa_noea
- | declspecs_sc_nots_sa_ea
- ;
-
-declspecs_ts_nosa:
- declspecs_nosc_ts_nosa_noea
- | declspecs_nosc_ts_nosa_ea
- | declspecs_sc_ts_nosa_noea
- | declspecs_sc_ts_nosa_ea
- ;
-
-declspecs_nots_nosa:
- declspecs_nosc_nots_nosa_noea
- | declspecs_nosc_nots_nosa_ea
- | declspecs_sc_nots_nosa_noea
- | declspecs_sc_nots_nosa_ea
- ;
-
-declspecs_nosc_ts:
- declspecs_nosc_ts_nosa_noea
- | declspecs_nosc_ts_nosa_ea
- | declspecs_nosc_ts_sa_noea
- | declspecs_nosc_ts_sa_ea
- ;
-
-declspecs_nosc_nots:
- declspecs_nosc_nots_nosa_noea
- | declspecs_nosc_nots_nosa_ea
- | declspecs_nosc_nots_sa_noea
- | declspecs_nosc_nots_sa_ea
- ;
-
-declspecs_nosc:
- declspecs_nosc_ts_nosa_noea
- | declspecs_nosc_ts_nosa_ea
- | declspecs_nosc_ts_sa_noea
- | declspecs_nosc_ts_sa_ea
- | declspecs_nosc_nots_nosa_noea
- | declspecs_nosc_nots_nosa_ea
- | declspecs_nosc_nots_sa_noea
- | declspecs_nosc_nots_sa_ea
- ;
-
-declspecs:
- declspecs_nosc_nots_nosa_noea
- | declspecs_nosc_nots_nosa_ea
- | declspecs_nosc_nots_sa_noea
- | declspecs_nosc_nots_sa_ea
- | declspecs_nosc_ts_nosa_noea
- | declspecs_nosc_ts_nosa_ea
- | declspecs_nosc_ts_sa_noea
- | declspecs_nosc_ts_sa_ea
- | declspecs_sc_nots_nosa_noea
- | declspecs_sc_nots_nosa_ea
- | declspecs_sc_nots_sa_noea
- | declspecs_sc_nots_sa_ea
- | declspecs_sc_ts_nosa_noea
- | declspecs_sc_ts_nosa_ea
- | declspecs_sc_ts_sa_noea
- | declspecs_sc_ts_sa_ea
- ;
-
-/* A (possibly empty) sequence of type qualifiers and attributes. */
-maybe_type_quals_attrs:
- /* empty */
- { $$ = NULL_TREE; }
- | declspecs_nosc_nots
- { $$ = $1; }
- ;
-
-/* A type specifier (but not a type qualifier).
- Once we have seen one of these in a declaration,
- if a typedef name appears then it is being redeclared.
-
- The _reserved versions start with a reserved word and may appear anywhere
- in the declaration specifiers; the _nonreserved versions may only
- appear before any other type specifiers, and after that are (if names)
- being redeclared.
-
- FIXME: should the _nonreserved version be restricted to names being
- redeclared only? The other entries there relate only the GNU extensions
- and Objective C, and are historically parsed thus, and don't make sense
- after other type specifiers, but it might be cleaner to count them as
- _reserved.
-
- _attr means: specifiers that either end with attributes,
- or are such that any following attributes would
- be parsed as part of the specifier.
-
- _nonattr: specifiers. */
-
-typespec_nonattr:
- typespec_reserved_nonattr
- | typespec_nonreserved_nonattr
- ;
-
-typespec_attr:
- typespec_reserved_attr
- ;
-
-typespec_reserved_nonattr:
- TYPESPEC
- { OBJC_NEED_RAW_IDENTIFIER (1); }
- | structsp_nonattr
- ;
-
-typespec_reserved_attr:
- structsp_attr
- ;
-
-typespec_nonreserved_nonattr:
- TYPENAME
- { /* For a typedef name, record the meaning, not the name.
- In case of `foo foo, bar;'. */
- $$ = lookup_name ($1); }
- | typeof '(' expr ')'
- { skip_evaluation--; $$ = TREE_TYPE ($3); }
- | typeof '(' typename ')'
- { skip_evaluation--; $$ = groktypename ($3); }
- ;
-
-/* typespec_nonreserved_attr does not exist. */
-
-initdecls:
- initdcl
- | initdecls ',' maybe_resetattrs initdcl
- ;
-
-notype_initdecls:
- notype_initdcl
- | notype_initdecls ',' maybe_resetattrs notype_initdcl
- ;
-
-maybeasm:
- /* empty */
- { $$ = NULL_TREE; }
- | ASM_KEYWORD '(' string ')'
- { if (TREE_CHAIN ($3)) $3 = combine_strings ($3);
- $$ = $3;
- }
- ;
-
-initdcl:
- declarator maybeasm maybe_attribute '='
- { $<ttype>$ = start_decl ($1, current_declspecs, 1,
- chainon ($3, all_prefix_attributes));
- start_init ($<ttype>$, $2, global_bindings_p ()); }
- init
-/* Note how the declaration of the variable is in effect while its init is parsed! */
- { finish_init ();
- finish_decl ($<ttype>5, $6, $2); }
- | declarator maybeasm maybe_attribute
- { tree d = start_decl ($1, current_declspecs, 0,
- chainon ($3, all_prefix_attributes));
- finish_decl (d, NULL_TREE, $2);
- }
- ;
-
-notype_initdcl:
- notype_declarator maybeasm maybe_attribute '='
- { $<ttype>$ = start_decl ($1, current_declspecs, 1,
- chainon ($3, all_prefix_attributes));
- start_init ($<ttype>$, $2, global_bindings_p ()); }
- init
-/* Note how the declaration of the variable is in effect while its init is parsed! */
- { finish_init ();
- finish_decl ($<ttype>5, $6, $2); }
- | notype_declarator maybeasm maybe_attribute
- { tree d = start_decl ($1, current_declspecs, 0,
- chainon ($3, all_prefix_attributes));
- finish_decl (d, NULL_TREE, $2); }
- ;
-/* the * rules are dummies to accept the Apollo extended syntax
- so that the header files compile. */
-maybe_attribute:
- /* empty */
- { $$ = NULL_TREE; }
- | attributes
- { $$ = $1; }
- ;
-
-attributes:
- attribute
- { $$ = $1; }
- | attributes attribute
- { $$ = chainon ($1, $2); }
- ;
-
-attribute:
- ATTRIBUTE '(' '(' attribute_list ')' ')'
- { $$ = $4; }
- ;
-
-attribute_list:
- attrib
- { $$ = $1; }
- | attribute_list ',' attrib
- { $$ = chainon ($1, $3); }
- ;
-
-attrib:
- /* empty */
- { $$ = NULL_TREE; }
- | any_word
- { $$ = build_tree_list ($1, NULL_TREE); }
- | any_word '(' IDENTIFIER ')'
- { $$ = build_tree_list ($1, build_tree_list (NULL_TREE, $3)); }
- | any_word '(' IDENTIFIER ',' nonnull_exprlist ')'
- { $$ = build_tree_list ($1, tree_cons (NULL_TREE, $3, $5)); }
- | any_word '(' exprlist ')'
- { $$ = build_tree_list ($1, $3); }
- ;
-
-/* This still leaves out most reserved keywords,
- shouldn't we include them? */
-
-any_word:
- identifier
- | SCSPEC
- | TYPESPEC
- | TYPE_QUAL
- ;
-\f
-/* Initializers. `init' is the entry point. */
-
-init:
- expr_no_commas
- | '{'
- { really_start_incremental_init (NULL_TREE); }
- initlist_maybe_comma '}'
- { $$ = pop_init_level (0); }
- | error
- { $$ = error_mark_node; }
- ;
-
-/* `initlist_maybe_comma' is the guts of an initializer in braces. */
-initlist_maybe_comma:
- /* empty */
- { if (pedantic)
- pedwarn ("ISO C forbids empty initializer braces"); }
- | initlist1 maybecomma
- ;
-
-initlist1:
- initelt
- | initlist1 ',' initelt
- ;
-
-/* `initelt' is a single element of an initializer.
- It may use braces. */
-initelt:
- designator_list '=' initval
- { if (pedantic && ! flag_isoc99)
- pedwarn ("ISO C89 forbids specifying subobject to initialize"); }
- | designator initval
- { if (pedantic)
- pedwarn ("obsolete use of designated initializer without `='"); }
- | identifier ':'
- { set_init_label ($1);
- if (pedantic)
- pedwarn ("obsolete use of designated initializer with `:'"); }
- initval
- {}
- | initval
- ;
-
-initval:
- '{'
- { push_init_level (0); }
- initlist_maybe_comma '}'
- { process_init_element (pop_init_level (0)); }
- | expr_no_commas
- { process_init_element ($1); }
- | error
- ;
-
-designator_list:
- designator
- | designator_list designator
- ;
-
-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. */
- | '[' 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); }
- ;
-\f
-nested_function:
- declarator
- { if (pedantic)
- pedwarn ("ISO C forbids nested functions");
-
- push_function_context ();
- if (! start_function (current_declspecs, $1,
- all_prefix_attributes))
- {
- pop_function_context ();
- YYERROR1;
- }
- }
- old_style_parm_decls
- { store_parm_decls (); }
-/* This used to use compstmt_or_error.
- That caused a bug with input `f(g) int g {}',
- where the use of YYERROR1 above caused an error
- which then was handled by compstmt_or_error.
- There followed a repeated execution of that same rule,
- which called YYERROR1 again, and so on. */
- save_filename save_lineno compstmt
- { tree decl = current_function_decl;
- DECL_SOURCE_FILE (decl) = $5;
- DECL_SOURCE_LINE (decl) = $6;
- finish_function (1, 1);
- pop_function_context ();
- add_decl_stmt (decl); }
- ;
-
-notype_nested_function:
- notype_declarator
- { if (pedantic)
- pedwarn ("ISO C forbids nested functions");
-
- push_function_context ();
- if (! start_function (current_declspecs, $1,
- all_prefix_attributes))
- {
- pop_function_context ();
- YYERROR1;
- }
- }
- old_style_parm_decls
- { store_parm_decls (); }
-/* This used to use compstmt_or_error.
- That caused a bug with input `f(g) int g {}',
- where the use of YYERROR1 above caused an error
- which then was handled by compstmt_or_error.
- There followed a repeated execution of that same rule,
- which called YYERROR1 again, and so on. */
- save_filename save_lineno compstmt
- { tree decl = current_function_decl;
- DECL_SOURCE_FILE (decl) = $5;
- DECL_SOURCE_LINE (decl) = $6;
- finish_function (1, 1);
- pop_function_context ();
- add_decl_stmt (decl); }
- ;
-
-/* Any kind of declarator (thus, all declarators allowed
- after an explicit typespec). */
-
-declarator:
- after_type_declarator
- | notype_declarator
- ;
-
-/* A declarator that is allowed only after an explicit typespec. */
-
-after_type_declarator:
- '(' 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 '.'
- { $$ = build_nt (CALL_EXPR, $1, NULL_TREE, NULL_TREE);
- poplevel (0, 0, 0); } */
- | after_type_declarator array_declarator %prec '.'
- { $$ = set_array_declarator_type ($2, $1, 0); }
- | '*' maybe_type_quals_attrs after_type_declarator %prec UNARY
- { $$ = make_pointer_declarator ($2, $3); }
- | TYPENAME
- ;
-
-/* Kinds of declarator that can appear in a parameter list
- in addition to notype_declarator. This is like after_type_declarator
- but does not allow a typedef name in parentheses as an identifier
- (because it would conflict with a function with that typedef as arg). */
-parm_declarator:
- parm_declarator_starttypename
- | parm_declarator_nostarttypename
- ;
-
-parm_declarator_starttypename:
- parm_declarator_starttypename '(' parmlist_or_identifiers %prec '.'
- { $$ = build_nt (CALL_EXPR, $1, $3, NULL_TREE); }
-/* | parm_declarator_starttypename '(' error ')' %prec '.'
- { $$ = build_nt (CALL_EXPR, $1, NULL_TREE, NULL_TREE);
- poplevel (0, 0, 0); } */
- | parm_declarator_starttypename array_declarator %prec '.'
- { $$ = set_array_declarator_type ($2, $1, 0); }
- | TYPENAME
- ;
-
-parm_declarator_nostarttypename:
- parm_declarator_nostarttypename '(' parmlist_or_identifiers %prec '.'
- { $$ = build_nt (CALL_EXPR, $1, $3, NULL_TREE); }
-/* | parm_declarator_nostarttypename '(' error ')' %prec '.'
- { $$ = build_nt (CALL_EXPR, $1, NULL_TREE, NULL_TREE);
- poplevel (0, 0, 0); } */
- | parm_declarator_nostarttypename array_declarator %prec '.'
- { $$ = set_array_declarator_type ($2, $1, 0); }
- | '*' maybe_type_quals_attrs parm_declarator_starttypename %prec UNARY
- { $$ = make_pointer_declarator ($2, $3); }
- | '*' maybe_type_quals_attrs parm_declarator_nostarttypename %prec UNARY
- { $$ = make_pointer_declarator ($2, $3); }
- | '(' maybe_attribute parm_declarator_nostarttypename ')'
- { $$ = $2 ? tree_cons ($2, $3, NULL_TREE) : $3; }
- ;
-
-/* A declarator allowed whether or not there has been
- an explicit typespec. These cannot redeclare a typedef-name. */
-
-notype_declarator:
- notype_declarator '(' parmlist_or_identifiers %prec '.'
- { $$ = build_nt (CALL_EXPR, $1, $3, NULL_TREE); }
-/* | notype_declarator '(' error ')' %prec '.'
- { $$ = build_nt (CALL_EXPR, $1, NULL_TREE, NULL_TREE);
- poplevel (0, 0, 0); } */
- | '(' 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 '.'
- { $$ = set_array_declarator_type ($2, $1, 0); }
- | IDENTIFIER
- ;
-
-struct_head:
- STRUCT
- { $$ = NULL_TREE; }
- | STRUCT attributes
- { $$ = $2; }
- ;
-
-union_head:
- UNION
- { $$ = NULL_TREE; }
- | UNION attributes
- { $$ = $2; }
- ;
-
-enum_head:
- ENUM
- { $$ = NULL_TREE; }
- | ENUM attributes
- { $$ = $2; }
- ;
-
-/* structsp_attr: struct/union/enum specifiers that either
- end with attributes, or are such that any following attributes would
- be parsed as part of the struct/union/enum specifier.
-
- structsp_nonattr: other struct/union/enum specifiers. */
-
-structsp_attr:
- struct_head identifier '{'
- { $$ = start_struct (RECORD_TYPE, $2);
- /* Start scope of tag before parsing components. */
- }
- component_decl_list '}' maybe_attribute
- { $$ = finish_struct ($<ttype>4, $5, chainon ($1, $7)); }
- | struct_head '{' component_decl_list '}' maybe_attribute
- { $$ = finish_struct (start_struct (RECORD_TYPE, NULL_TREE),
- $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)); }
- | union_head '{' component_decl_list '}' maybe_attribute
- { $$ = finish_struct (start_struct (UNION_TYPE, NULL_TREE),
- $3, chainon ($1, $5));
- }
- | enum_head identifier '{'
- { $$ = start_enum ($2); }
- enumlist maybecomma_warn '}' maybe_attribute
- { $$ = finish_enum ($<ttype>4, nreverse ($5),
- chainon ($1, $8)); }
- | enum_head '{'
- { $$ = start_enum (NULL_TREE); }
- enumlist maybecomma_warn '}' maybe_attribute
- { $$ = finish_enum ($<ttype>3, nreverse ($4),
- chainon ($1, $7)); }
- ;
-
-structsp_nonattr:
- struct_head identifier
- { $$ = xref_tag (RECORD_TYPE, $2); }
- | union_head identifier
- { $$ = xref_tag (UNION_TYPE, $2); }
- | enum_head identifier
- { $$ = xref_tag (ENUMERAL_TYPE, $2);
- /* In ISO C, enumerated types can be referred to
- only if already defined. */
- if (pedantic && !COMPLETE_TYPE_P ($$))
- pedwarn ("ISO C forbids forward references to `enum' types"); }
- ;
-
-maybecomma:
- /* empty */
- | ','
- ;
-
-maybecomma_warn:
- /* empty */
- | ','
- { if (pedantic && ! flag_isoc99)
- pedwarn ("comma at end of enumerator list"); }
- ;
-
-component_decl_list:
- component_decl_list2
- { $$ = $1; }
- | component_decl_list2 component_decl
- { $$ = chainon ($1, $2);
- pedwarn ("no semicolon at end of struct or union"); }
- ;
-
-component_decl_list2: /* empty */
- { $$ = NULL_TREE; }
- | component_decl_list2 component_decl ';'
- { $$ = chainon ($1, $2); }
- | component_decl_list2 ';'
- { if (pedantic)
- pedwarn ("extra semicolon in struct or union specified"); }
- ;
-
-component_decl:
- declspecs_nosc_ts setspecs components
- { $$ = $3;
- 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
- MS P-SDK). */
- if (pedantic)
- pedwarn ("ISO C doesn't support unnamed structs/unions");
-
- $$ = grokfield($3, $4, NULL, current_declspecs, NULL_TREE);
- POP_DECLSPEC_STACK; }
- | declspecs_nosc_nots setspecs components_notype
- { $$ = $3;
- POP_DECLSPEC_STACK; }
- | declspecs_nosc_nots
- { if (pedantic)
- pedwarn ("ISO C forbids member declarations with no members");
- shadow_tag($1);
- $$ = NULL_TREE; }
- | error
- { $$ = NULL_TREE; }
- | extension component_decl
- { $$ = $2;
- RESTORE_WARN_FLAGS ($1); }
- ;
-
-components:
- component_declarator
- | components ',' maybe_resetattrs component_declarator
- { $$ = chainon ($1, $4); }
- ;
-
-components_notype:
- component_notype_declarator
- | components_notype ',' maybe_resetattrs component_notype_declarator
- { $$ = chainon ($1, $4); }
- ;
-
-component_declarator:
- save_filename save_lineno declarator maybe_attribute
- { $$ = grokfield ($1, $2, $3, current_declspecs, NULL_TREE);
- decl_attributes (&$$, chainon ($4, all_prefix_attributes), 0); }
- | save_filename save_lineno
- declarator ':' expr_no_commas maybe_attribute
- { $$ = grokfield ($1, $2, $3, current_declspecs, $5);
- decl_attributes (&$$, chainon ($6, all_prefix_attributes), 0); }
- | save_filename save_lineno ':' expr_no_commas maybe_attribute
- { $$ = grokfield ($1, $2, NULL_TREE, current_declspecs, $4);
- decl_attributes (&$$, chainon ($5, all_prefix_attributes), 0); }
- ;
-
-component_notype_declarator:
- save_filename save_lineno notype_declarator maybe_attribute
- { $$ = grokfield ($1, $2, $3, current_declspecs, NULL_TREE);
- decl_attributes (&$$, chainon ($4, all_prefix_attributes), 0); }
- | save_filename save_lineno
- notype_declarator ':' expr_no_commas maybe_attribute
- { $$ = grokfield ($1, $2, $3, current_declspecs, $5);
- decl_attributes (&$$, chainon ($6, all_prefix_attributes), 0); }
- | save_filename save_lineno ':' expr_no_commas maybe_attribute
- { $$ = grokfield ($1, $2, NULL_TREE, current_declspecs, $4);
- decl_attributes (&$$, chainon ($5, all_prefix_attributes), 0); }
- ;
-
-/* We chain the enumerators in reverse order.
- They are put in forward order where enumlist is used.
- (The order used to be significant, but no longer is so.
- However, we still maintain the order, just to be clean.) */
-
-enumlist:
- enumerator
- | enumlist ',' enumerator
- { if ($1 == error_mark_node)
- $$ = $1;
- else
- $$ = chainon ($3, $1); }
- | error
- { $$ = error_mark_node; }
- ;
-
-
-enumerator:
- identifier
- { $$ = build_enumerator ($1, NULL_TREE); }
- | identifier '=' expr_no_commas
- { $$ = build_enumerator ($1, $3); }
- ;
-
-typename:
- declspecs_nosc
- { pending_xref_error ();
- $<ttype>$ = $1; }
- absdcl
- { $$ = build_tree_list ($<ttype>2, $3); }
- ;
-
-absdcl: /* an absolute declarator */
- /* empty */
- { $$ = NULL_TREE; }
- | absdcl1
- ;
-
-absdcl_maybe_attribute: /* absdcl maybe_attribute, but not just attributes */
- /* empty */
- { $$ = build_tree_list (build_tree_list (current_declspecs,
- NULL_TREE),
- all_prefix_attributes); }
- | absdcl1
- { $$ = build_tree_list (build_tree_list (current_declspecs,
- $1),
- all_prefix_attributes); }
- | absdcl1_noea attributes
- { $$ = build_tree_list (build_tree_list (current_declspecs,
- $1),
- chainon ($2, all_prefix_attributes)); }
- ;
-
-absdcl1: /* a nonempty absolute declarator */
- absdcl1_ea
- | absdcl1_noea
- ;
-
-absdcl1_noea:
- direct_absdcl1
- | '*' maybe_type_quals_attrs absdcl1_noea
- { $$ = make_pointer_declarator ($2, $3); }
- ;
-
-absdcl1_ea:
- '*' maybe_type_quals_attrs
- { $$ = make_pointer_declarator ($2, NULL_TREE); }
- | '*' maybe_type_quals_attrs absdcl1_ea
- { $$ = make_pointer_declarator ($2, $3); }
- ;
-
-direct_absdcl1:
- '(' 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
- { $$ = set_array_declarator_type ($2, $1, 1); }
- | '(' parmlist
- { $$ = build_nt (CALL_EXPR, NULL_TREE, $2, NULL_TREE); }
- | array_declarator
- { $$ = set_array_declarator_type ($1, NULL_TREE, 1); }
- ;
-
-/* The [...] part of a declarator for an array type. */
-
-array_declarator:
- '[' expr ']'
- { $$ = build_array_declarator ($2, NULL_TREE, 0, 0); }
- | '[' declspecs_nosc expr ']'
- { $$ = build_array_declarator ($3, $2, 0, 0); }
- | '[' ']'
- { $$ = build_array_declarator (NULL_TREE, NULL_TREE, 0, 0); }
- | '[' declspecs_nosc ']'
- { $$ = build_array_declarator (NULL_TREE, $2, 0, 0); }
- | '[' '*' ']'
- { $$ = build_array_declarator (NULL_TREE, NULL_TREE, 0, 1); }
- | '[' declspecs_nosc '*' ']'
- { $$ = build_array_declarator (NULL_TREE, $2, 0, 1); }
- | '[' SCSPEC expr ']'
- { if (C_RID_CODE ($2) != RID_STATIC)
- error ("storage class specifier in array declarator");
- $$ = 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); }
- ;
-
-/* A nonempty series of declarations and statements (possibly followed by
- some labels) that can form the body of a compound statement.
- NOTE: we don't allow labels on declarations; this might seem like a
- natural extension, but there would be a conflict between attributes
- on the label and prefix attributes on the declaration. */
-
-stmts_and_decls:
- lineno_stmt_decl_or_labels_ending_stmt
- | lineno_stmt_decl_or_labels_ending_decl
- | lineno_stmt_decl_or_labels_ending_label
- {
- pedwarn ("deprecated use of label at end of compound statement");
- }
- | lineno_stmt_decl_or_labels_ending_error
- ;
-
-lineno_stmt_decl_or_labels_ending_stmt:
- lineno_stmt
- | lineno_stmt_decl_or_labels_ending_stmt lineno_stmt
- | lineno_stmt_decl_or_labels_ending_decl lineno_stmt
- | lineno_stmt_decl_or_labels_ending_label lineno_stmt
- | lineno_stmt_decl_or_labels_ending_error lineno_stmt
- ;
-
-lineno_stmt_decl_or_labels_ending_decl:
- lineno_decl
- | lineno_stmt_decl_or_labels_ending_stmt lineno_decl
- { if (pedantic && !flag_isoc99)
- pedwarn ("ISO C89 forbids mixed declarations and code"); }
- | lineno_stmt_decl_or_labels_ending_decl lineno_decl
- | lineno_stmt_decl_or_labels_ending_error lineno_decl
- ;
-
-lineno_stmt_decl_or_labels_ending_label:
- lineno_label
- | lineno_stmt_decl_or_labels_ending_stmt lineno_label
- | lineno_stmt_decl_or_labels_ending_decl lineno_label
- | lineno_stmt_decl_or_labels_ending_label lineno_label
- | lineno_stmt_decl_or_labels_ending_error lineno_label
- ;
-
-lineno_stmt_decl_or_labels_ending_error:
- errstmt
- | lineno_stmt_decl_or_labels errstmt
- ;
-
-lineno_stmt_decl_or_labels:
- lineno_stmt_decl_or_labels_ending_stmt
- | lineno_stmt_decl_or_labels_ending_decl
- | lineno_stmt_decl_or_labels_ending_label
- | lineno_stmt_decl_or_labels_ending_error
- ;
-
-errstmt: error ';'
- ;
-
-pushlevel: /* empty */
- { pushlevel (0);
- clear_last_expr ();
- add_scope_stmt (/*begin_p=*/1, /*partial_p=*/0);
- }
- ;
-
-poplevel: /* empty */
- { $$ = add_scope_stmt (/*begin_p=*/0, /*partial_p=*/0); }
- ;
-
-/* Start and end blocks created for the new scopes of C99. */
-c99_block_start: /* empty */
- { if (flag_isoc99)
- {
- $$ = c_begin_compound_stmt ();
- pushlevel (0);
- clear_last_expr ();
- add_scope_stmt (/*begin_p=*/1, /*partial_p=*/0);
- }
- else
- $$ = NULL_TREE;
- }
- ;
-
-/* Productions using c99_block_start and c99_block_end will need to do what's
- in compstmt: RECHAIN_STMTS ($1, COMPOUND_BODY ($1)); $$ = $2; where
- $1 is the value of c99_block_start and $2 of c99_block_end. */
-c99_block_end: /* empty */
- { if (flag_isoc99)
- {
- tree scope_stmt = add_scope_stmt (/*begin_p=*/0, /*partial_p=*/0);
- $$ = poplevel (kept_level_p (), 0, 0);
- SCOPE_STMT_BLOCK (TREE_PURPOSE (scope_stmt))
- = SCOPE_STMT_BLOCK (TREE_VALUE (scope_stmt))
- = $$;
- }
- else
- $$ = NULL_TREE; }
- ;
-
-/* Read zero or more forward-declarations for labels
- that nested functions can jump to. */
-maybe_label_decls:
- /* empty */
- | label_decls
- { if (pedantic)
- pedwarn ("ISO C forbids label declarations"); }
- ;
-
-label_decls:
- label_decl
- | label_decls label_decl
- ;
-
-label_decl:
- LABEL identifiers_or_typenames ';'
- { tree link;
- for (link = $2; link; link = TREE_CHAIN (link))
- {
- tree label = shadow_label (TREE_VALUE (link));
- C_DECLARED_LABEL_FLAG (label) = 1;
- add_decl_stmt (label);
- }
- }
- ;
-
-/* This is the body of a function definition.
- It causes syntax errors to ignore to the next openbrace. */
-compstmt_or_error:
- compstmt
- {}
- | error compstmt
- ;
-
-compstmt_start: '{' { compstmt_count++;
- $$ = 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))
- = SCOPE_STMT_BLOCK (TREE_VALUE ($5))
- = $$; }
- ;
-
-compstmt_contents_nonempty:
- stmts_and_decls
- | error
- ;
-
-compstmt_primary_start:
- '(' '{'
- { if (current_function_decl == 0)
- {
- error ("braced-group within expression allowed only inside a function");
- YYERROR;
- }
- /* We must force a BLOCK for this level
- so that, if it is not expanded later,
- there is a way to turn off the entire subtree of blocks
- that are contained in it. */
- keep_next_level ();
- push_label_level ();
- compstmt_count++;
- $$ = add_stmt (build_stmt (COMPOUND_STMT, last_tree));
- }
- ;
-
-compstmt: compstmt_start compstmt_nostart
- { RECHAIN_STMTS ($1, COMPOUND_BODY ($1));
- last_expr_type = NULL_TREE;
- $$ = $1; }
- ;
-
-/* Value is number of statements counted as of the closeparen. */
-simple_if:
- if_prefix c99_block_lineno_labeled_stmt
- { c_finish_then (); }
-/* Make sure c_expand_end_cond is run once
- for each call to c_expand_start_cond.
- Otherwise a crash is likely. */
- | if_prefix error
- ;
-
-if_prefix:
- /* We must build the IF_STMT node before parsing its
- condition so that STMT_LINENO refers to the line
- containing the "if", and not the line containing
- the close-parenthesis.
-
- c_begin_if_stmt returns the IF_STMT node, which
- we later pass to c_expand_start_cond to fill
- in the condition and other tidbits. */
- IF
- { $<ttype>$ = c_begin_if_stmt (); }
- '(' expr ')'
- { c_expand_start_cond (truthvalue_conversion ($4),
- compstmt_count,$<ttype>2);
- $<itype>$ = stmt_count;
- if_stmt_file = $<filename>-2;
- if_stmt_line = $<lineno>-1; }
- ;
-
-/* This is a subroutine of stmt.
- It is used twice, once for valid DO statements
- and once for catching errors in parsing the end test. */
-do_stmt_start:
- DO
- { stmt_count++;
- compstmt_count++;
- $<ttype>$
- = add_stmt (build_stmt (DO_STMT, NULL_TREE,
- NULL_TREE));
- /* In the event that a parse error prevents
- parsing the complete do-statement, set the
- condition now. Otherwise, we can get crashes at
- RTL-generation time. */
- DO_COND ($<ttype>$) = error_mark_node; }
- c99_block_lineno_labeled_stmt WHILE
- { $$ = $<ttype>2;
- RECHAIN_STMTS ($$, DO_BODY ($$)); }
- ;
-
-/* The forced readahead in here is because we might be at the end of a
- line, and the line and file won't be bumped until yylex absorbs the
- first token on the next line. */
-save_filename:
- { if (yychar == YYEMPTY)
- yychar = YYLEX;
- $$ = input_filename; }
- ;
-
-save_lineno:
- { if (yychar == YYEMPTY)
- yychar = YYLEX;
- $$ = lineno; }
- ;
-
-lineno_labeled_stmt:
- lineno_stmt
- | lineno_label lineno_labeled_stmt
- ;
-
-/* Like lineno_labeled_stmt, but a block in C99. */
-c99_block_lineno_labeled_stmt:
- c99_block_start lineno_labeled_stmt c99_block_end
- { if (flag_isoc99)
- RECHAIN_STMTS ($1, COMPOUND_BODY ($1)); }
- ;
-
-lineno_stmt:
- save_filename save_lineno stmt
- { if ($3)
- {
- STMT_LINENO ($3) = $2;
- /* ??? 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 occur when
- doing inlining at the tree level. */
- }
- }
- ;
-
-lineno_label:
- save_filename save_lineno label
- { if ($3)
- {
- STMT_LINENO ($3) = $2;
- }
- }
- ;
-
-select_or_iter_stmt:
- simple_if ELSE
- { c_expand_start_else ();
- $<itype>1 = stmt_count; }
- c99_block_lineno_labeled_stmt
- { c_finish_else ();
- c_expand_end_cond ();
- if (extra_warnings && stmt_count == $<itype>1)
- warning ("empty body in an else-statement"); }
- | simple_if %prec IF
- { c_expand_end_cond ();
- /* This warning is here instead of in simple_if, because we
- do not want a warning if an empty if is followed by an
- 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"); }
-/* 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++;
- $<ttype>$ = c_begin_while_stmt (); }
- '(' expr ')'
- { $4 = truthvalue_conversion ($4);
- c_finish_while_stmt_cond (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_stmt_start error
- { }
- | FOR
- { $<ttype>$ = build_stmt (FOR_STMT, NULL_TREE, NULL_TREE,
- NULL_TREE, NULL_TREE);
- 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 ($6); }
- xexpr ')'
- { FOR_EXPR ($<ttype>2) = $9; }
- c99_block_lineno_labeled_stmt
- { RECHAIN_STMTS ($<ttype>2, FOR_BODY ($<ttype>2)); }
- | SWITCH '(' expr ')'
- { stmt_count++;
- $<ttype>$ = c_start_case ($3); }
- c99_block_lineno_labeled_stmt
- { c_finish_case (); }
- ;
-
-for_init_stmt:
- xexpr ';'
- { add_stmt (build_stmt (EXPR_STMT, $1)); }
- | decl
- { check_for_loop_decls (); }
- ;
-
-/* Parse a single real statement, not including any labels. */
-stmt:
- compstmt
- { stmt_count++; $$ = $1; }
- | expr ';'
- { stmt_count++;
- $$ = c_expand_expr_stmt ($1); }
- | c99_block_start select_or_iter_stmt c99_block_end
- { if (flag_isoc99)
- RECHAIN_STMTS ($1, COMPOUND_BODY ($1));
- $$ = NULL_TREE; }
- | BREAK ';'
- { stmt_count++;
- $$ = add_stmt (build_break_stmt ()); }
- | CONTINUE ';'
- { stmt_count++;
- $$ = add_stmt (build_continue_stmt ()); }
- | RETURN ';'
- { stmt_count++;
- $$ = c_expand_return (NULL_TREE); }
- | RETURN expr ';'
- { stmt_count++;
- $$ = c_expand_return ($2); }
- | ASM_KEYWORD maybe_type_qual '(' expr ')' ';'
- { stmt_count++;
- $$ = simple_asm_stmt ($4); }
- /* This is the case with just output operands. */
- | ASM_KEYWORD maybe_type_qual '(' expr ':' asm_operands ')' ';'
- { stmt_count++;
- $$ = build_asm_stmt ($2, $4, $6, NULL_TREE, NULL_TREE); }
- /* This is the case with input operands as well. */
- | ASM_KEYWORD maybe_type_qual '(' expr ':' asm_operands ':'
- asm_operands ')' ';'
- { stmt_count++;
- $$ = 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 ')' ';'
- { stmt_count++;
- $$ = build_asm_stmt ($2, $4, $6, $8, $10); }
- | GOTO identifier ';'
- { tree decl;
- stmt_count++;
- decl = lookup_label ($2);
- if (decl != 0)
- {
- TREE_USED (decl) = 1;
- $$ = add_stmt (build_stmt (GOTO_STMT, decl));
- }
- else
- $$ = NULL_TREE;
- }
- | GOTO '*' expr ';'
- { if (pedantic)
- pedwarn ("ISO C forbids `goto *expr;'");
- stmt_count++;
- $3 = convert (ptr_type_node, $3);
- $$ = add_stmt (build_stmt (GOTO_STMT, $3)); }
- | ';'
- { $$ = NULL_TREE; }
- ;
-
-/* Any kind of label, including jump labels and case labels.
- ANSI C accepts labels only before statements, but we allow them
- also at the end of a compound statement. */
-
-label: CASE expr_no_commas ':'
- { stmt_count++;
- $$ = do_case ($2, NULL_TREE); }
- | CASE expr_no_commas ELLIPSIS expr_no_commas ':'
- { stmt_count++;
- $$ = do_case ($2, $4); }
- | DEFAULT ':'
- { stmt_count++;
- $$ = do_case (NULL_TREE, NULL_TREE); }
- | identifier save_filename save_lineno ':' maybe_attribute
- { tree label = define_label ($2, $3, $1);
- stmt_count++;
- if (label)
- {
- decl_attributes (&label, $5, 0);
- $$ = add_stmt (build_stmt (LABEL_STMT, label));
- }
- else
- $$ = NULL_TREE;
- }
- ;
-
-/* Either a type-qualifier or nothing. First thing in an `asm' statement. */
-
-maybe_type_qual:
- /* empty */
- { emit_line_note (input_filename, lineno);
- $$ = NULL_TREE; }
- | TYPE_QUAL
- { emit_line_note (input_filename, lineno); }
- ;
-
-xexpr:
- /* empty */
- { $$ = NULL_TREE; }
- | expr
- ;
-
-/* These are the operands other than the first string and colon
- in asm ("addextend %2,%1": "=dm" (x), "0" (y), "g" (*x)) */
-asm_operands: /* empty */
- { $$ = NULL_TREE; }
- | nonnull_asm_operands
- ;
-
-nonnull_asm_operands:
- asm_operand
- | nonnull_asm_operands ',' asm_operand
- { $$ = chainon ($1, $3); }
- ;
-
-asm_operand:
- STRING '(' expr ')'
- { $$ = build_tree_list (build_tree_list (NULL_TREE, $1), $3); }
- | '[' identifier ']' STRING '(' expr ')'
- { $$ = 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); }
- ;
-\f
-/* This is what appears inside the parens in a function declarator.
- Its value is a list of ..._TYPE nodes. Attributes must appear here
- to avoid a conflict with their appearance after an open parenthesis
- in an abstract declarator, as in
- "void bar (int (__attribute__((__mode__(SI))) int foo));". */
-parmlist:
- maybe_attribute
- { pushlevel (0);
- clear_parm_order ();
- declare_parm_level (0); }
- parmlist_1
- { $$ = $3;
- parmlist_tags_warning ();
- poplevel (0, 0, 0); }
- ;
-
-parmlist_1:
- parmlist_2 ')'
- | parms ';'
- { tree parm;
- if (pedantic)
- pedwarn ("ISO C forbids forward parameter declarations");
- /* Mark the forward decls as such. */
- for (parm = getdecls (); parm; parm = TREE_CHAIN (parm))
- TREE_ASM_WRITTEN (parm) = 1;
- clear_parm_order (); }
- maybe_attribute
- { /* Dummy action so attributes are in known place
- on parser stack. */ }
- parmlist_1
- { $$ = $6; }
- | error ')'
- { $$ = tree_cons (NULL_TREE, NULL_TREE, NULL_TREE); }
- ;
-
-/* This is what appears inside the parens in a function declarator.
- Is value is represented in the format that grokdeclarator expects. */
-parmlist_2: /* empty */
- { $$ = get_parm_info (0); }
- | ELLIPSIS
- { $$ = get_parm_info (0);
- /* Gcc used to allow this as an extension. However, it does
- not work for all targets, and thus has been disabled.
- Also, since func (...) and func () are indistinguishable,
- it caused problems with the code in expand_builtin which
- tries to verify that BUILT_IN_NEXT_ARG is being used
- correctly. */
- error ("ISO C requires a named argument before `...'");
- }
- | parms
- { $$ = get_parm_info (1); }
- | parms ',' ELLIPSIS
- { $$ = get_parm_info (0); }
- ;
-
-parms:
- firstparm
- { push_parm_decl ($1); }
- | parms ',' parm
- { push_parm_decl ($3); }
- ;
-
-/* A single parameter declaration or parameter type name,
- as found in a parmlist. */
-parm:
- declspecs_ts setspecs parm_declarator maybe_attribute
- { $$ = build_tree_list (build_tree_list (current_declspecs,
- $3),
- chainon ($4, all_prefix_attributes));
- POP_DECLSPEC_STACK; }
- | declspecs_ts setspecs notype_declarator maybe_attribute
- { $$ = build_tree_list (build_tree_list (current_declspecs,
- $3),
- chainon ($4, all_prefix_attributes));
- POP_DECLSPEC_STACK; }
- | declspecs_ts setspecs absdcl_maybe_attribute
- { $$ = $3;
- POP_DECLSPEC_STACK; }
- | declspecs_nots setspecs notype_declarator maybe_attribute
- { $$ = build_tree_list (build_tree_list (current_declspecs,
- $3),
- chainon ($4, all_prefix_attributes));
- POP_DECLSPEC_STACK; }
-
- | declspecs_nots setspecs absdcl_maybe_attribute
- { $$ = $3;
- POP_DECLSPEC_STACK; }
- ;
-
-/* The first parm, which must suck attributes from off the top of the parser
- stack. */
-firstparm:
- declspecs_ts_nosa setspecs_fp parm_declarator maybe_attribute
- { $$ = build_tree_list (build_tree_list (current_declspecs,
- $3),
- chainon ($4, all_prefix_attributes));
- POP_DECLSPEC_STACK; }
- | declspecs_ts_nosa setspecs_fp notype_declarator maybe_attribute
- { $$ = build_tree_list (build_tree_list (current_declspecs,
- $3),
- chainon ($4, all_prefix_attributes));
- POP_DECLSPEC_STACK; }
- | declspecs_ts_nosa setspecs_fp absdcl_maybe_attribute
- { $$ = $3;
- POP_DECLSPEC_STACK; }
- | declspecs_nots_nosa setspecs_fp notype_declarator maybe_attribute
- { $$ = build_tree_list (build_tree_list (current_declspecs,
- $3),
- chainon ($4, all_prefix_attributes));
- POP_DECLSPEC_STACK; }
-
- | declspecs_nots_nosa setspecs_fp absdcl_maybe_attribute
- { $$ = $3;
- POP_DECLSPEC_STACK; }
- ;
-
-setspecs_fp:
- setspecs
- { prefix_attributes = chainon (prefix_attributes, $<ttype>-2);
- all_prefix_attributes = prefix_attributes; }
- ;
-
-/* This is used in a function definition
- where either a parmlist or an identifier list is ok.
- Its value is a list of ..._TYPE nodes or a list of identifiers. */
-parmlist_or_identifiers:
- maybe_attribute
- { pushlevel (0);
- clear_parm_order ();
- declare_parm_level (1); }
- parmlist_or_identifiers_1
- { $$ = $3;
- parmlist_tags_warning ();
- poplevel (0, 0, 0); }
- ;
-
-parmlist_or_identifiers_1:
- parmlist_1
- | identifiers ')'
- { tree t;
- for (t = $1; t; t = TREE_CHAIN (t))
- if (TREE_VALUE (t) == NULL_TREE)
- error ("`...' in old-style identifier list");
- $$ = tree_cons (NULL_TREE, NULL_TREE, $1);
-
- /* Make sure we have a parmlist after attributes. */
- if ($<ttype>-1 != 0
- && (TREE_CODE ($$) != TREE_LIST
- || TREE_PURPOSE ($$) == 0
- || TREE_CODE (TREE_PURPOSE ($$)) != PARM_DECL))
- YYERROR1;
- }
- ;
-
-/* A nonempty list of identifiers. */
-identifiers:
- IDENTIFIER
- { $$ = build_tree_list (NULL_TREE, $1); }
- | identifiers ',' IDENTIFIER
- { $$ = chainon ($1, build_tree_list (NULL_TREE, $3)); }
- ;
-
-/* A nonempty list of identifiers, including typenames. */
-identifiers_or_typenames:
- identifier
- { $$ = build_tree_list (NULL_TREE, $1); }
- | identifiers_or_typenames ',' identifier
- { $$ = chainon ($1, build_tree_list (NULL_TREE, $3)); }
- ;
-
-extension:
- EXTENSION
- { $$ = SAVE_WARN_FLAGS();
- pedantic = 0;
- warn_pointer_arith = 0;
- warn_traditional = 0; }
- ;
-\f
-%%
-
-/* yylex() is a thin wrapper around c_lex(), all it does is translate
- cpplib.h's token codes into yacc's token codes. */
-
-static enum cpp_ttype last_token;
-
-/* The reserved keyword table. */
-struct resword
-{
- const char *word;
- ENUM_BITFIELD(rid) rid : 16;
- unsigned int disable : 16;
-};
-
-/* 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 */
-
-static const struct resword reswords[] =
-{
- { "_Bool", RID_BOOL, 0 },
- { "_Complex", RID_COMPLEX, 0 },
- { "__FUNCTION__", RID_FUNCTION_NAME, 0 },
- { "__PRETTY_FUNCTION__", RID_PRETTY_FUNCTION_NAME, 0 },
- { "__alignof", RID_ALIGNOF, 0 },
- { "__alignof__", RID_ALIGNOF, 0 },
- { "__asm", RID_ASM, 0 },
- { "__asm__", RID_ASM, 0 },
- { "__attribute", RID_ATTRIBUTE, 0 },
- { "__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 },
- { "__const", RID_CONST, 0 },
- { "__const__", RID_CONST, 0 },
- { "__extension__", RID_EXTENSION, 0 },
- { "__func__", RID_C99_FUNCTION_NAME, 0 },
- { "__imag", RID_IMAGPART, 0 },
- { "__imag__", RID_IMAGPART, 0 },
- { "__inline", RID_INLINE, 0 },
- { "__inline__", RID_INLINE, 0 },
- { "__label__", RID_LABEL, 0 },
- { "__ptrbase", RID_PTRBASE, 0 },
- { "__ptrbase__", RID_PTRBASE, 0 },
- { "__ptrextent", RID_PTREXTENT, 0 },
- { "__ptrextent__", RID_PTREXTENT, 0 },
- { "__ptrvalue", RID_PTRVALUE, 0 },
- { "__ptrvalue__", RID_PTRVALUE, 0 },
- { "__real", RID_REALPART, 0 },
- { "__real__", RID_REALPART, 0 },
- { "__restrict", RID_RESTRICT, 0 },
- { "__restrict__", RID_RESTRICT, 0 },
- { "__signed", RID_SIGNED, 0 },
- { "__signed__", RID_SIGNED, 0 },
- { "__typeof", RID_TYPEOF, 0 },
- { "__typeof__", RID_TYPEOF, 0 },
- { "__unbounded", RID_UNBOUNDED, 0 },
- { "__unbounded__", RID_UNBOUNDED, 0 },
- { "__volatile", RID_VOLATILE, 0 },
- { "__volatile__", RID_VOLATILE, 0 },
- { "asm", RID_ASM, D_EXT },
- { "auto", RID_AUTO, 0 },
- { "break", RID_BREAK, 0 },
- { "case", RID_CASE, 0 },
- { "char", RID_CHAR, 0 },
- { "const", RID_CONST, D_TRAD },
- { "continue", RID_CONTINUE, 0 },
- { "default", RID_DEFAULT, 0 },
- { "do", RID_DO, 0 },
- { "double", RID_DOUBLE, 0 },
- { "else", RID_ELSE, 0 },
- { "enum", RID_ENUM, 0 },
- { "extern", RID_EXTERN, 0 },
- { "float", RID_FLOAT, 0 },
- { "for", RID_FOR, 0 },
- { "goto", RID_GOTO, 0 },
- { "if", RID_IF, 0 },
- { "inline", RID_INLINE, D_TRAD|D_EXT89 },
- { "int", RID_INT, 0 },
- { "long", RID_LONG, 0 },
- { "register", RID_REGISTER, 0 },
- { "restrict", RID_RESTRICT, D_TRAD|D_C89 },
- { "return", RID_RETURN, 0 },
- { "short", RID_SHORT, 0 },
- { "signed", RID_SIGNED, D_TRAD },
- { "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 },
- { "union", RID_UNION, 0 },
- { "unsigned", RID_UNSIGNED, 0 },
- { "void", RID_VOID, 0 },
- { "volatile", RID_VOLATILE, D_TRAD },
- { "while", RID_WHILE, 0 },
-};
-#define N_reswords (sizeof reswords / sizeof (struct resword))
-
-/* Table mapping from RID_* constants to yacc token numbers.
- Unfortunately we have to have entries for all the keywords in all
- three languages. */
-static const short rid_to_yy[RID_MAX] =
-{
- /* RID_STATIC */ SCSPEC,
- /* RID_UNSIGNED */ TYPESPEC,
- /* RID_LONG */ TYPESPEC,
- /* RID_CONST */ TYPE_QUAL,
- /* RID_EXTERN */ SCSPEC,
- /* RID_REGISTER */ SCSPEC,
- /* RID_TYPEDEF */ SCSPEC,
- /* RID_SHORT */ TYPESPEC,
- /* RID_INLINE */ SCSPEC,
- /* RID_VOLATILE */ TYPE_QUAL,
- /* RID_SIGNED */ TYPESPEC,
- /* RID_AUTO */ SCSPEC,
- /* RID_RESTRICT */ TYPE_QUAL,
-
- /* C extensions */
- /* RID_BOUNDED */ TYPE_QUAL,
- /* RID_UNBOUNDED */ TYPE_QUAL,
- /* RID_COMPLEX */ TYPESPEC,
-
- /* C++ */
- /* RID_FRIEND */ 0,
- /* RID_VIRTUAL */ 0,
- /* RID_EXPLICIT */ 0,
- /* RID_EXPORT */ 0,
- /* RID_MUTABLE */ 0,
-
- /* ObjC */
- /* RID_IN */ TYPE_QUAL,
- /* RID_OUT */ TYPE_QUAL,
- /* RID_INOUT */ TYPE_QUAL,
- /* RID_BYCOPY */ TYPE_QUAL,
- /* RID_BYREF */ TYPE_QUAL,
- /* RID_ONEWAY */ TYPE_QUAL,
-
- /* C */
- /* RID_INT */ TYPESPEC,
- /* RID_CHAR */ TYPESPEC,
- /* RID_FLOAT */ TYPESPEC,
- /* RID_DOUBLE */ TYPESPEC,
- /* RID_VOID */ TYPESPEC,
- /* RID_ENUM */ ENUM,
- /* RID_STRUCT */ STRUCT,
- /* RID_UNION */ UNION,
- /* RID_IF */ IF,
- /* RID_ELSE */ ELSE,
- /* RID_WHILE */ WHILE,
- /* RID_DO */ DO,
- /* RID_FOR */ FOR,
- /* RID_SWITCH */ SWITCH,
- /* RID_CASE */ CASE,
- /* RID_DEFAULT */ DEFAULT,
- /* RID_BREAK */ BREAK,
- /* RID_CONTINUE */ CONTINUE,
- /* RID_RETURN */ RETURN,
- /* RID_GOTO */ GOTO,
- /* RID_SIZEOF */ SIZEOF,
-
- /* C extensions */
- /* RID_ASM */ ASM_KEYWORD,
- /* RID_TYPEOF */ TYPEOF,
- /* RID_ALIGNOF */ ALIGNOF,
- /* RID_ATTRIBUTE */ ATTRIBUTE,
- /* RID_VA_ARG */ VA_ARG,
- /* RID_EXTENSION */ EXTENSION,
- /* RID_IMAGPART */ IMAGPART,
- /* RID_REALPART */ REALPART,
- /* RID_LABEL */ LABEL,
- /* RID_PTRBASE */ PTR_BASE,
- /* 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,
-
- /* C++ */
- /* RID_BOOL */ TYPESPEC,
- /* RID_WCHAR */ 0,
- /* RID_CLASS */ 0,
- /* RID_PUBLIC */ 0,
- /* RID_PRIVATE */ 0,
- /* RID_PROTECTED */ 0,
- /* RID_TEMPLATE */ 0,
- /* RID_NULL */ 0,
- /* RID_CATCH */ 0,
- /* RID_DELETE */ 0,
- /* RID_FALSE */ 0,
- /* RID_NAMESPACE */ 0,
- /* RID_NEW */ 0,
- /* RID_OPERATOR */ 0,
- /* RID_THIS */ 0,
- /* RID_THROW */ 0,
- /* RID_TRUE */ 0,
- /* RID_TRY */ 0,
- /* RID_TYPENAME */ 0,
- /* RID_TYPEID */ 0,
- /* RID_USING */ 0,
-
- /* casts */
- /* RID_CONSTCAST */ 0,
- /* RID_DYNCAST */ 0,
- /* 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,
- /* RID_AT_END */ END,
- /* RID_AT_CLASS */ CLASS,
- /* RID_AT_ALIAS */ ALIAS,
- /* RID_AT_DEFS */ DEFS,
- /* RID_AT_PRIVATE */ PRIVATE,
- /* RID_AT_PROTECTED */ PROTECTED,
- /* RID_AT_PUBLIC */ PUBLIC,
- /* RID_AT_PROTOCOL */ PROTOCOL,
- /* RID_AT_SELECTOR */ SELECTOR,
- /* RID_AT_INTERFACE */ INTERFACE,
- /* RID_AT_IMPLEMENTATION */ IMPLEMENTATION
-};
-
-static void
-init_reswords ()
-{
- 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)
- 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));
- for (i = 0; i < N_reswords; i++)
- {
- /* If a keyword is disabled, do not enter it into the table
- and so create a canonical spelling that isn't a keyword. */
- if (reswords[i].disable & mask)
- continue;
-
- id = get_identifier (reswords[i].word);
- C_RID_CODE (id) = reswords[i].rid;
- C_IS_RESERVED_WORD (id) = 1;
- ridpointers [(int) reswords[i].rid] = id;
- }
-}
-
-#define NAME(type) cpp_type2name (type)
-
-static void
-yyerror (msgid)
- const char *msgid;
-{
- const char *string = _(msgid);
-
- if (last_token == CPP_EOF)
- error ("%s at end of input", string);
- else if (last_token == CPP_CHAR || last_token == CPP_WCHAR)
- {
- unsigned int val = TREE_INT_CST_LOW (yylval.ttype);
- const char *const ell = (last_token == CPP_CHAR) ? "" : "L";
- if (val <= UCHAR_MAX && ISGRAPH (val))
- error ("%s before %s'%c'", string, ell, val);
- else
- error ("%s before %s'\\x%x'", string, ell, val);
- }
- else if (last_token == CPP_STRING
- || last_token == CPP_WSTRING)
- error ("%s before string constant", string);
- else if (last_token == CPP_NUMBER)
- error ("%s before numeric constant", string);
- else if (last_token == CPP_NAME)
- error ("%s before \"%s\"", string, IDENTIFIER_POINTER (yylval.ttype));
- else
- error ("%s before '%s' token", string, NAME(last_token));
-}
-
-static int
-yylexname ()
-{
- tree decl;
-
-
- if (C_IS_RESERVED_WORD (yylval.ttype))
- {
- enum rid rid_code = C_RID_CODE (yylval.ttype);
-
- {
- int yycode = rid_to_yy[(int) rid_code];
- if (yycode == STRING_FUNC_NAME)
- {
- /* __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;
- }
- }
-
- decl = lookup_name (yylval.ttype);
- if (decl)
- {
- if (TREE_CODE (decl) == TYPE_DECL)
- return TYPENAME;
- }
-
- return IDENTIFIER;
-}
-
-
-static inline int
-_yylex ()
-{
- get_next:
- last_token = c_lex (&yylval.ttype);
- switch (last_token)
- {
- case CPP_EQ: return '=';
- case CPP_NOT: return '!';
- case CPP_GREATER: yylval.code = GT_EXPR; return ARITHCOMPARE;
- case CPP_LESS: yylval.code = LT_EXPR; return ARITHCOMPARE;
- case CPP_PLUS: yylval.code = PLUS_EXPR; return '+';
- case CPP_MINUS: yylval.code = MINUS_EXPR; return '-';
- case CPP_MULT: yylval.code = MULT_EXPR; return '*';
- case CPP_DIV: yylval.code = TRUNC_DIV_EXPR; return '/';
- case CPP_MOD: yylval.code = TRUNC_MOD_EXPR; return '%';
- case CPP_AND: yylval.code = BIT_AND_EXPR; return '&';
- case CPP_OR: yylval.code = BIT_IOR_EXPR; return '|';
- case CPP_XOR: yylval.code = BIT_XOR_EXPR; return '^';
- case CPP_RSHIFT: yylval.code = RSHIFT_EXPR; return RSHIFT;
- case CPP_LSHIFT: yylval.code = LSHIFT_EXPR; return LSHIFT;
-
- case CPP_COMPL: return '~';
- case CPP_AND_AND: return ANDAND;
- case CPP_OR_OR: return OROR;
- case CPP_QUERY: return '?';
- case CPP_OPEN_PAREN: return '(';
- case CPP_EQ_EQ: yylval.code = EQ_EXPR; return EQCOMPARE;
- case CPP_NOT_EQ: yylval.code = NE_EXPR; return EQCOMPARE;
- case CPP_GREATER_EQ:yylval.code = GE_EXPR; return ARITHCOMPARE;
- case CPP_LESS_EQ: yylval.code = LE_EXPR; return ARITHCOMPARE;
-
- case CPP_PLUS_EQ: yylval.code = PLUS_EXPR; return ASSIGN;
- case CPP_MINUS_EQ: yylval.code = MINUS_EXPR; return ASSIGN;
- case CPP_MULT_EQ: yylval.code = MULT_EXPR; return ASSIGN;
- case CPP_DIV_EQ: yylval.code = TRUNC_DIV_EXPR; return ASSIGN;
- case CPP_MOD_EQ: yylval.code = TRUNC_MOD_EXPR; return ASSIGN;
- case CPP_AND_EQ: yylval.code = BIT_AND_EXPR; return ASSIGN;
- case CPP_OR_EQ: yylval.code = BIT_IOR_EXPR; return ASSIGN;
- case CPP_XOR_EQ: yylval.code = BIT_XOR_EXPR; return ASSIGN;
- case CPP_RSHIFT_EQ: yylval.code = RSHIFT_EXPR; return ASSIGN;
- case CPP_LSHIFT_EQ: yylval.code = LSHIFT_EXPR; return ASSIGN;
-
- case CPP_OPEN_SQUARE: return '[';
- case CPP_CLOSE_SQUARE: return ']';
- case CPP_OPEN_BRACE: return '{';
- case CPP_CLOSE_BRACE: return '}';
- case CPP_ELLIPSIS: return ELLIPSIS;
-
- case CPP_PLUS_PLUS: return PLUSPLUS;
- case CPP_MINUS_MINUS: return MINUSMINUS;
- case CPP_DEREF: return POINTSAT;
- case CPP_DOT: return '.';
-
- /* The following tokens may affect the interpretation of any
- identifiers following, if doing Objective-C. */
- case CPP_COLON: OBJC_NEED_RAW_IDENTIFIER (0); return ':';
- case CPP_COMMA: OBJC_NEED_RAW_IDENTIFIER (0); return ',';
- case CPP_CLOSE_PAREN: OBJC_NEED_RAW_IDENTIFIER (0); return ')';
- case CPP_SEMICOLON: OBJC_NEED_RAW_IDENTIFIER (0); return ';';
-
- case CPP_EOF:
- return 0;
-
- case CPP_NAME:
- return yylexname ();
-
- case CPP_NUMBER:
- case CPP_CHAR:
- case CPP_WCHAR:
- return CONSTANT;
-
- case CPP_STRING:
- case CPP_WSTRING:
- return STRING;
-
- /* This token is Objective-C specific. It gives the next token
- special significance. */
- case CPP_ATSIGN:
-
- /* These tokens are C++ specific (and will not be generated
- in C mode, but let's be cautious). */
- case CPP_SCOPE:
- case CPP_DEREF_STAR:
- case CPP_DOT_STAR:
- case CPP_MIN_EQ:
- case CPP_MAX_EQ:
- case CPP_MIN:
- case CPP_MAX:
- /* These tokens should not survive translation phase 4. */
- case CPP_HASH:
- case CPP_PASTE:
- error ("syntax error at '%s' token", NAME(last_token));
- goto get_next;
-
- default:
- abort ();
- }
- /* NOTREACHED */
-}
-
-static int
-yylex()
-{
- int r;
- timevar_push (TV_LEX);
- r = _yylex();
- timevar_pop (TV_LEX);
- 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
-c_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
-yyprint (file, yychar, yyl)
- FILE *file;
- int yychar;
- YYSTYPE yyl;
-{
- tree t = yyl.ttype;
-
- fprintf (file, " [%s]", NAME(last_token));
-
- switch (yychar)
- {
- case IDENTIFIER:
- case TYPENAME:
- case OBJECTNAME:
- case TYPESPEC:
- case TYPE_QUAL:
- case SCSPEC:
- 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));
- break;
- }
-}
-\f
-/* 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_ATTRS is a list of modifiers such as const or volatile
- to apply to the pointer type, represented as identifiers, possible mixed
- with attributes.
-
- We return an INDIRECT_REF whose "contents" are TARGET (inside a TREE_LIST,
- if attributes are present) and whose type is the modifier list. */
-
-tree
-make_pointer_declarator (type_quals_attrs, target)
- tree type_quals_attrs, target;
-{
- tree quals, attrs;
- tree itarget = target;
- split_specs_attrs (type_quals_attrs, &quals, &attrs);
- if (attrs != NULL_TREE)
- itarget = tree_cons (attrs, target, NULL_TREE);
- return build1 (INDIRECT_REF, quals, itarget);
-}
projects / msp430-gcc.git / blobdiff