4008 lines
113 KiB
Plaintext
4008 lines
113 KiB
Plaintext
/* YACC parser for C++ syntax.
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Copyright (C) 1988, 1989, 1993, 1994, 1995, 1996, 1997, 1998,
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1999, 2000, 2001, 2002 Free Software Foundation, Inc.
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Hacked by Michael Tiemann (tiemann@cygnus.com)
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This file is part of GNU CC.
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GNU CC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU CC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU CC; see the file COPYING. If not, write to
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the Free Software Foundation, 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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/* This grammar is based on the GNU CC grammar. */
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/* Note: Bison automatically applies a default action of "$$ = $1" for
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all derivations; this is applied before the explicit action, if one
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is given. Keep this in mind when reading the actions. */
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%{
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/* Cause the `yydebug' variable to be defined. */
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#define YYDEBUG 1
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#include "config.h"
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#include "system.h"
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#include "tree.h"
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#include "input.h"
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#include "flags.h"
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#include "cp-tree.h"
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#include "lex.h"
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#include "output.h"
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#include "except.h"
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#include "toplev.h"
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#include "ggc.h"
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extern struct obstack permanent_obstack;
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/* Like YYERROR but do call yyerror. */
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#define YYERROR1 { yyerror ("syntax error"); YYERROR; }
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#define OP0(NODE) (TREE_OPERAND (NODE, 0))
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#define OP1(NODE) (TREE_OPERAND (NODE, 1))
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/* Contains the statement keyword (if/while/do) to include in an
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error message if the user supplies an empty conditional expression. */
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static const char *cond_stmt_keyword;
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/* Nonzero if we have an `extern "C"' acting as an extern specifier. */
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int have_extern_spec;
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int used_extern_spec;
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/* List of types and structure classes of the current declaration. */
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static tree current_declspecs;
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/* List of prefix attributes in effect.
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Prefix attributes are parsed by the reserved_declspecs and declmods
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rules. They create a list that contains *both* declspecs and attrs. */
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/* ??? It is not clear yet that all cases where an attribute can now appear in
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a declspec list have been updated. */
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static tree prefix_attributes;
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/* When defining an enumeration, this is the type of the enumeration. */
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static tree current_enum_type;
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/* When parsing a conversion operator name, this is the scope of the
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operator itself. */
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static tree saved_scopes;
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static tree empty_parms PARAMS ((void));
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static tree parse_decl0 PARAMS ((tree, tree, tree, tree, int));
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static tree parse_decl PARAMS ((tree, tree, int));
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static void parse_end_decl PARAMS ((tree, tree, tree));
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static tree parse_field0 PARAMS ((tree, tree, tree, tree, tree, tree));
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static tree parse_field PARAMS ((tree, tree, tree, tree));
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static tree parse_bitfield0 PARAMS ((tree, tree, tree, tree, tree));
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static tree parse_bitfield PARAMS ((tree, tree, tree));
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static tree parse_method PARAMS ((tree, tree, tree));
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static void frob_specs PARAMS ((tree, tree));
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static void check_class_key PARAMS ((tree, tree));
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/* Cons up an empty parameter list. */
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static inline tree
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empty_parms ()
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{
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tree parms;
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#ifndef NO_IMPLICIT_EXTERN_C
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if (in_system_header && current_class_type == NULL
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&& current_lang_name == lang_name_c)
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parms = NULL_TREE;
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else
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#endif
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parms = void_list_node;
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return parms;
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}
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/* Record the decl-specifiers, attributes and type lookups from the
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decl-specifier-seq in a declaration. */
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static void
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frob_specs (specs_attrs, lookups)
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tree specs_attrs, lookups;
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{
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save_type_access_control (lookups);
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split_specs_attrs (specs_attrs, ¤t_declspecs, &prefix_attributes);
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if (current_declspecs
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&& TREE_CODE (current_declspecs) != TREE_LIST)
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current_declspecs = build_tree_list (NULL_TREE, current_declspecs);
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if (have_extern_spec && !used_extern_spec)
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{
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/* We have to indicate that there is an "extern", but that it
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was part of a language specifier. For instance,
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extern "C" typedef int (*Ptr) ();
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is well formed. */
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current_declspecs = tree_cons (error_mark_node,
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get_identifier ("extern"),
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current_declspecs);
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used_extern_spec = 1;
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}
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}
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static tree
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parse_decl (declarator, attributes, initialized)
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tree declarator, attributes;
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int initialized;
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{
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return start_decl (declarator, current_declspecs, initialized,
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attributes, prefix_attributes);
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}
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static tree
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parse_decl0 (declarator, specs_attrs, lookups, attributes, initialized)
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tree declarator, specs_attrs, lookups, attributes;
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int initialized;
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{
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frob_specs (specs_attrs, lookups);
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return parse_decl (declarator, attributes, initialized);
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}
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static void
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parse_end_decl (decl, init, asmspec)
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tree decl, init, asmspec;
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{
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/* If decl is NULL_TREE, then this was a variable declaration using
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() syntax for the initializer, so we handled it in grokdeclarator. */
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if (decl)
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decl_type_access_control (decl);
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cp_finish_decl (decl, init, asmspec, init ? LOOKUP_ONLYCONVERTING : 0);
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}
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static tree
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parse_field (declarator, attributes, asmspec, init)
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tree declarator, attributes, asmspec, init;
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{
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tree d = grokfield (declarator, current_declspecs, init, asmspec,
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chainon (attributes, prefix_attributes));
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decl_type_access_control (d);
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return d;
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}
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static tree
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parse_field0 (declarator, specs_attrs, lookups, attributes, asmspec, init)
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tree declarator, specs_attrs, lookups, attributes, asmspec, init;
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{
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frob_specs (specs_attrs, lookups);
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return parse_field (declarator, attributes, asmspec, init);
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}
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static tree
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parse_bitfield (declarator, attributes, width)
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tree declarator, attributes, width;
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{
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tree d = grokbitfield (declarator, current_declspecs, width);
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cplus_decl_attributes (&d, chainon (attributes, prefix_attributes), 0);
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decl_type_access_control (d);
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return d;
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}
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static tree
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parse_bitfield0 (declarator, specs_attrs, lookups, attributes, width)
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tree declarator, specs_attrs, lookups, attributes, width;
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{
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frob_specs (specs_attrs, lookups);
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return parse_bitfield (declarator, attributes, width);
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}
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static tree
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parse_method (declarator, specs_attrs, lookups)
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tree declarator, specs_attrs, lookups;
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{
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tree d;
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frob_specs (specs_attrs, lookups);
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d = start_method (current_declspecs, declarator, prefix_attributes);
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decl_type_access_control (d);
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return d;
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}
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static void
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check_class_key (key, aggr)
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tree key;
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tree aggr;
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{
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if (TREE_CODE (key) == TREE_LIST)
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key = TREE_VALUE (key);
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if ((key == union_type_node) != (TREE_CODE (aggr) == UNION_TYPE))
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pedwarn ("`%s' tag used in naming `%#T'",
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key == union_type_node ? "union"
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: key == record_type_node ? "struct" : "class", aggr);
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}
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void
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cp_parse_init ()
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{
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ggc_add_tree_root (¤t_declspecs, 1);
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ggc_add_tree_root (&prefix_attributes, 1);
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ggc_add_tree_root (¤t_enum_type, 1);
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ggc_add_tree_root (&saved_scopes, 1);
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}
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/* Rename the "yyparse" function so that we can override it elsewhere. */
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#define yyparse yyparse_1
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%}
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%start program
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%union {
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long itype;
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tree ttype;
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char *strtype;
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enum tree_code code;
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flagged_type_tree ftype;
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struct unparsed_text *pi;
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}
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/* All identifiers that are not reserved words
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and are not declared typedefs in the current block */
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%token IDENTIFIER
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/* All identifiers that are declared typedefs in the current block.
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In some contexts, they are treated just like IDENTIFIER,
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but they can also serve as typespecs in declarations. */
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%token tTYPENAME
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%token SELFNAME
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/* A template function. */
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%token PFUNCNAME
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/* Reserved words that specify storage class.
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yylval contains an IDENTIFIER_NODE which indicates which one. */
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%token SCSPEC
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/* Reserved words that specify type.
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yylval contains an IDENTIFIER_NODE which indicates which one. */
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%token TYPESPEC
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/* Reserved words that qualify type: "const" or "volatile".
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yylval contains an IDENTIFIER_NODE which indicates which one. */
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%token CV_QUALIFIER
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/* Character or numeric constants.
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yylval is the node for the constant. */
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%token CONSTANT
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/* __func__, __FUNCTION__ or __PRETTY_FUNCTION__.
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yylval contains an IDENTIFIER_NODE which indicates which one. */
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%token VAR_FUNC_NAME
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/* String constants in raw form.
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yylval is a STRING_CST node. */
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%token STRING
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/* "...", used for functions with variable arglists. */
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%token ELLIPSIS
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/* the reserved words */
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/* SCO include files test "ASM", so use something else. */
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%token SIZEOF ENUM /* STRUCT UNION */ IF ELSE WHILE DO FOR SWITCH CASE DEFAULT
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%token BREAK CONTINUE RETURN_KEYWORD GOTO ASM_KEYWORD TYPEOF ALIGNOF
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%token SIGOF
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%token ATTRIBUTE EXTENSION LABEL
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%token REALPART IMAGPART VA_ARG
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/* the reserved words... C++ extensions */
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%token <ttype> AGGR
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%token <ttype> VISSPEC
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%token DELETE NEW THIS OPERATOR CXX_TRUE CXX_FALSE
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%token NAMESPACE TYPENAME_KEYWORD USING
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%token LEFT_RIGHT TEMPLATE
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%token TYPEID DYNAMIC_CAST STATIC_CAST REINTERPRET_CAST CONST_CAST
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%token SCOPE EXPORT
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/* Define the operator tokens and their precedences.
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The value is an integer because, if used, it is the tree code
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to use in the expression made from the operator. */
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%left EMPTY /* used to resolve s/r with epsilon */
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%left error
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/* Add precedence rules to solve dangling else s/r conflict */
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%nonassoc IF
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%nonassoc ELSE
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%left IDENTIFIER PFUNCNAME tTYPENAME SELFNAME PTYPENAME SCSPEC TYPESPEC CV_QUALIFIER ENUM AGGR ELLIPSIS TYPEOF SIGOF OPERATOR NSNAME TYPENAME_KEYWORD ATTRIBUTE
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%left '{' ',' ';'
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%nonassoc THROW
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%right <code> ':'
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%right <code> ASSIGN '='
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%right <code> '?'
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%left <code> OROR
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%left <code> ANDAND
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%left <code> '|'
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%left <code> '^'
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%left <code> '&'
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%left <code> MIN_MAX
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%left <code> EQCOMPARE
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%left <code> ARITHCOMPARE '<' '>'
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%left <code> LSHIFT RSHIFT
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%left <code> '+' '-'
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%left <code> '*' '/' '%'
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%left <code> POINTSAT_STAR DOT_STAR
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%right <code> UNARY PLUSPLUS MINUSMINUS '~'
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%left HYPERUNARY
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%left <ttype> LEFT_RIGHT
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%left <code> POINTSAT '.' '(' '['
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%right SCOPE /* C++ extension */
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%nonassoc NEW DELETE TRY CATCH
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%type <code> unop
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%type <ttype> identifier IDENTIFIER tTYPENAME CONSTANT expr nonnull_exprlist
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%type <ttype> PFUNCNAME maybe_identifier
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%type <ttype> paren_expr_or_null nontrivial_exprlist SELFNAME
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%type <ttype> expr_no_commas expr_no_comma_rangle
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%type <ttype> cast_expr unary_expr primary string STRING
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%type <ttype> reserved_declspecs boolean.literal
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%type <ttype> reserved_typespecquals
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%type <ttype> SCSPEC TYPESPEC CV_QUALIFIER maybe_cv_qualifier
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%type <ttype> init initlist maybeasm maybe_init defarg defarg1
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%type <ttype> asm_operands nonnull_asm_operands asm_operand asm_clobbers
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%type <ttype> maybe_attribute attributes attribute attribute_list attrib
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%type <ttype> any_word
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%type <itype> save_lineno
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%type <ttype> simple_stmt simple_if
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%type <ttype> declarator notype_declarator after_type_declarator
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%type <ttype> notype_declarator_intern absdcl_intern
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%type <ttype> after_type_declarator_intern
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%type <ttype> direct_notype_declarator direct_after_type_declarator
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%type <itype> components notype_components
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%type <ttype> component_decl component_decl_1
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%type <ttype> component_declarator component_declarator0
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%type <ttype> notype_component_declarator notype_component_declarator0
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%type <ttype> after_type_component_declarator after_type_component_declarator0
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%type <ttype> absdcl cv_qualifiers
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%type <ttype> direct_abstract_declarator conversion_declarator
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%type <ttype> new_declarator direct_new_declarator
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%type <ttype> xexpr parmlist parms bad_parm
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%type <ttype> identifiers_or_typenames
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%type <ttype> fcast_or_absdcl regcast_or_absdcl
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%type <ttype> expr_or_declarator expr_or_declarator_intern
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%type <ttype> complex_notype_declarator
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%type <ttype> notype_unqualified_id unqualified_id qualified_id
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%type <ttype> template_id do_id object_template_id notype_template_declarator
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%type <ttype> overqualified_id notype_qualified_id any_id
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%type <ttype> complex_direct_notype_declarator functional_cast
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%type <ttype> complex_parmlist parms_comma
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%type <ttype> namespace_qualifier namespace_using_decl
|
||
|
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%type <ftype> type_id new_type_id typed_typespecs typespec typed_declspecs
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%type <ftype> typed_declspecs1 type_specifier_seq nonempty_cv_qualifiers
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%type <ftype> structsp typespecqual_reserved parm named_parm full_parm
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%type <ftype> declmods
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|
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%type <itype> extension
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||
|
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/* C++ extensions */
|
||
%token <ttype> PTYPENAME
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%token <ttype> EXTERN_LANG_STRING ALL
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||
%token <ttype> PRE_PARSED_CLASS_DECL DEFARG DEFARG_MARKER
|
||
%token <pi> PRE_PARSED_FUNCTION_DECL
|
||
%type <ttype> component_constructor_declarator
|
||
%type <ttype> fn.def2 return_id constructor_declarator
|
||
%type <ttype> .begin_function_body
|
||
%type <ttype> class_head class_head_apparent_template
|
||
%type <ftype> class_head_decl class_head_defn
|
||
%type <ttype> base_class_list
|
||
%type <ttype> base_class_access_list
|
||
%type <ttype> base_class maybe_base_class_list base_class.1
|
||
%type <ttype> exception_specification_opt ansi_raise_identifier ansi_raise_identifiers
|
||
%type <ttype> operator_name
|
||
%type <ttype> object aggr
|
||
%type <itype> new delete
|
||
/* %type <ttype> primary_no_id */
|
||
%type <ttype> maybe_parmlist
|
||
%type <ttype> member_init
|
||
%type <ftype> member_init_list
|
||
%type <ttype> template_parm_header template_spec_header template_header
|
||
%type <ttype> template_parm_list template_parm
|
||
%type <ttype> template_type_parm template_template_parm
|
||
%type <code> template_close_bracket
|
||
%type <ttype> apparent_template_type
|
||
%type <ttype> template_type template_arg_list template_arg_list_opt
|
||
%type <ttype> template_arg
|
||
%type <ttype> condition xcond paren_cond_or_null
|
||
%type <ttype> type_name nested_name_specifier nested_type ptr_to_mem
|
||
%type <ttype> complete_type_name notype_identifier nonnested_type
|
||
%type <ttype> complex_type_name nested_name_specifier_1
|
||
%type <ttype> new_initializer new_placement
|
||
%type <ttype> using_decl
|
||
%type <ttype> typename_sub typename_sub0 typename_sub1 typename_sub2
|
||
%type <ttype> explicit_template_type
|
||
/* in order to recognize aggr tags as defining and thus shadowing. */
|
||
%token TYPENAME_DEFN IDENTIFIER_DEFN PTYPENAME_DEFN
|
||
%type <ttype> identifier_defn IDENTIFIER_DEFN TYPENAME_DEFN PTYPENAME_DEFN
|
||
%type <ttype> handler_args
|
||
%type <ttype> self_template_type .finish_template_type
|
||
|
||
%token NSNAME
|
||
%type <ttype> NSNAME
|
||
|
||
/* Used in lex.c for parsing pragmas. */
|
||
%token END_OF_LINE
|
||
|
||
/* lex.c and pt.c depend on this being the last token. Define
|
||
any new tokens before this one! */
|
||
%token END_OF_SAVED_INPUT
|
||
|
||
%{
|
||
/* Tell yyparse how to print a token's value, if yydebug is set. */
|
||
#define YYPRINT(FILE,YYCHAR,YYLVAL) yyprint(FILE,YYCHAR,YYLVAL)
|
||
extern void yyprint PARAMS ((FILE *, int, YYSTYPE));
|
||
%}
|
||
|
||
%%
|
||
program:
|
||
/* empty */
|
||
{ finish_translation_unit (); }
|
||
| extdefs
|
||
{ finish_translation_unit (); }
|
||
;
|
||
|
||
/* 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; }
|
||
lang_extdef
|
||
{ $<ttype>$ = NULL_TREE; ggc_collect (); }
|
||
| extdefs lang_extdef
|
||
{ $<ttype>$ = NULL_TREE; ggc_collect (); }
|
||
;
|
||
|
||
extdefs_opt:
|
||
extdefs
|
||
| /* empty */
|
||
;
|
||
|
||
.hush_warning:
|
||
{ have_extern_spec = 1;
|
||
used_extern_spec = 0;
|
||
$<ttype>$ = NULL_TREE; }
|
||
;
|
||
.warning_ok:
|
||
{ have_extern_spec = 0; }
|
||
;
|
||
|
||
extension:
|
||
EXTENSION
|
||
{ $$ = pedantic;
|
||
pedantic = 0; }
|
||
;
|
||
|
||
asm_keyword:
|
||
ASM_KEYWORD
|
||
;
|
||
|
||
lang_extdef:
|
||
{ if (pending_lang_change) do_pending_lang_change();
|
||
type_lookups = NULL_TREE; }
|
||
extdef
|
||
{ if (! toplevel_bindings_p ())
|
||
pop_everything (); }
|
||
;
|
||
|
||
extdef:
|
||
fndef eat_saved_input
|
||
{ do_pending_inlines (); }
|
||
| datadef
|
||
{ do_pending_inlines (); }
|
||
|
||
| EXPORT
|
||
{ warning ("keyword `export' not implemented, and will be ignored"); }
|
||
template_def
|
||
{ do_pending_inlines (); }
|
||
| template_def
|
||
{ do_pending_inlines (); }
|
||
| asm_keyword '(' string ')' ';'
|
||
{ if (TREE_CHAIN ($3)) $3 = combine_strings ($3);
|
||
assemble_asm ($3); }
|
||
| extern_lang_string '{' extdefs_opt '}'
|
||
{ pop_lang_context (); }
|
||
| extern_lang_string .hush_warning fndef .warning_ok eat_saved_input
|
||
{ do_pending_inlines (); pop_lang_context (); }
|
||
| extern_lang_string .hush_warning datadef .warning_ok
|
||
{ do_pending_inlines (); pop_lang_context (); }
|
||
| NAMESPACE identifier '{'
|
||
{ push_namespace ($2); }
|
||
extdefs_opt '}'
|
||
{ pop_namespace (); }
|
||
| NAMESPACE '{'
|
||
{ push_namespace (NULL_TREE); }
|
||
extdefs_opt '}'
|
||
{ pop_namespace (); }
|
||
| namespace_alias
|
||
| using_decl ';'
|
||
{ do_toplevel_using_decl ($1); }
|
||
| using_directive
|
||
| extension extdef
|
||
{ pedantic = $1; }
|
||
;
|
||
|
||
namespace_alias:
|
||
NAMESPACE identifier '='
|
||
{ begin_only_namespace_names (); }
|
||
any_id ';'
|
||
{
|
||
end_only_namespace_names ();
|
||
if (lastiddecl)
|
||
$5 = lastiddecl;
|
||
do_namespace_alias ($2, $5);
|
||
}
|
||
;
|
||
|
||
using_decl:
|
||
USING qualified_id
|
||
{ $$ = $2; }
|
||
| USING global_scope qualified_id
|
||
{ $$ = $3; }
|
||
| USING global_scope unqualified_id
|
||
{ $$ = $3; }
|
||
;
|
||
|
||
namespace_using_decl:
|
||
USING namespace_qualifier identifier
|
||
{ $$ = build_nt (SCOPE_REF, $2, $3); }
|
||
| USING global_scope identifier
|
||
{ $$ = build_nt (SCOPE_REF, global_namespace, $3); }
|
||
| USING global_scope namespace_qualifier identifier
|
||
{ $$ = build_nt (SCOPE_REF, $3, $4); }
|
||
;
|
||
|
||
using_directive:
|
||
USING NAMESPACE
|
||
{ begin_only_namespace_names (); }
|
||
any_id ';'
|
||
{
|
||
end_only_namespace_names ();
|
||
/* If no declaration was found, the using-directive is
|
||
invalid. Since that was not reported, we need the
|
||
identifier for the error message. */
|
||
if (TREE_CODE ($4) == IDENTIFIER_NODE && lastiddecl)
|
||
$4 = lastiddecl;
|
||
do_using_directive ($4);
|
||
}
|
||
;
|
||
|
||
namespace_qualifier:
|
||
NSNAME SCOPE
|
||
{
|
||
if (TREE_CODE ($$) == IDENTIFIER_NODE)
|
||
$$ = lastiddecl;
|
||
got_scope = $$;
|
||
}
|
||
| namespace_qualifier NSNAME SCOPE
|
||
{
|
||
$$ = $2;
|
||
if (TREE_CODE ($$) == IDENTIFIER_NODE)
|
||
$$ = lastiddecl;
|
||
got_scope = $$;
|
||
}
|
||
;
|
||
|
||
any_id:
|
||
unqualified_id
|
||
| qualified_id
|
||
| global_scope qualified_id
|
||
{ $$ = $2; }
|
||
| global_scope unqualified_id
|
||
{ $$ = $2; }
|
||
;
|
||
|
||
extern_lang_string:
|
||
EXTERN_LANG_STRING
|
||
{ push_lang_context ($1); }
|
||
| extern_lang_string EXTERN_LANG_STRING
|
||
{ if (current_lang_name != $2)
|
||
error ("use of linkage spec `%D' is different from previous spec `%D'", $2, current_lang_name);
|
||
pop_lang_context (); push_lang_context ($2); }
|
||
;
|
||
|
||
template_parm_header:
|
||
TEMPLATE '<'
|
||
{ begin_template_parm_list (); }
|
||
template_parm_list '>'
|
||
{ $$ = end_template_parm_list ($4); }
|
||
;
|
||
|
||
template_spec_header:
|
||
TEMPLATE '<' '>'
|
||
{ begin_specialization();
|
||
$$ = NULL_TREE; }
|
||
;
|
||
|
||
template_header:
|
||
template_parm_header
|
||
| template_spec_header
|
||
;
|
||
|
||
template_parm_list:
|
||
template_parm
|
||
{ $$ = process_template_parm (NULL_TREE, $1); }
|
||
| template_parm_list ',' template_parm
|
||
{ $$ = process_template_parm ($1, $3); }
|
||
;
|
||
|
||
maybe_identifier:
|
||
identifier
|
||
{ $$ = $1; }
|
||
| /* empty */
|
||
{ $$ = NULL_TREE; }
|
||
;
|
||
|
||
template_type_parm:
|
||
aggr maybe_identifier
|
||
{ $$ = finish_template_type_parm ($1, $2); }
|
||
| TYPENAME_KEYWORD maybe_identifier
|
||
{ $$ = finish_template_type_parm (class_type_node, $2); }
|
||
;
|
||
|
||
template_template_parm:
|
||
template_parm_header aggr maybe_identifier
|
||
{ $$ = finish_template_template_parm ($2, $3); }
|
||
;
|
||
|
||
template_parm:
|
||
/* The following rules introduce a new reduce/reduce
|
||
conflict on the ',' and '>' input tokens: they are valid
|
||
prefixes for a `structsp', which means they could match a
|
||
nameless parameter. See 14.6, paragraph 3.
|
||
By putting them before the `parm' rule, we get
|
||
their match before considering them nameless parameter
|
||
declarations. */
|
||
template_type_parm
|
||
{ $$ = build_tree_list (NULL_TREE, $1); }
|
||
| template_type_parm '=' type_id
|
||
{ $$ = build_tree_list (groktypename ($3.t), $1); }
|
||
| parm
|
||
{ $$ = build_tree_list (NULL_TREE, $1.t); }
|
||
| parm '=' expr_no_comma_rangle
|
||
{ $$ = build_tree_list ($3, $1.t); }
|
||
| template_template_parm
|
||
{ $$ = build_tree_list (NULL_TREE, $1); }
|
||
| template_template_parm '=' template_arg
|
||
{
|
||
if (TREE_CODE ($3) != TEMPLATE_DECL
|
||
&& TREE_CODE ($3) != TEMPLATE_TEMPLATE_PARM
|
||
&& TREE_CODE ($3) != TYPE_DECL
|
||
&& TREE_CODE ($3) != UNBOUND_CLASS_TEMPLATE)
|
||
{
|
||
error ("invalid default template argument");
|
||
$3 = error_mark_node;
|
||
}
|
||
$$ = build_tree_list ($3, $1);
|
||
}
|
||
;
|
||
|
||
template_def:
|
||
template_header template_extdef
|
||
{ finish_template_decl ($1); }
|
||
| template_header error %prec EMPTY
|
||
{ finish_template_decl ($1); }
|
||
;
|
||
|
||
template_extdef:
|
||
fndef eat_saved_input
|
||
{ do_pending_inlines (); }
|
||
| template_datadef
|
||
{ do_pending_inlines (); }
|
||
| template_def
|
||
{ do_pending_inlines (); }
|
||
| extern_lang_string .hush_warning fndef .warning_ok eat_saved_input
|
||
{ do_pending_inlines ();
|
||
pop_lang_context (); }
|
||
| extern_lang_string .hush_warning template_datadef .warning_ok
|
||
{ do_pending_inlines ();
|
||
pop_lang_context (); }
|
||
| extension template_extdef
|
||
{ pedantic = $1; }
|
||
;
|
||
|
||
template_datadef:
|
||
nomods_initdecls ';'
|
||
| declmods notype_initdecls ';'
|
||
{}
|
||
| typed_declspecs initdecls ';'
|
||
{ note_list_got_semicolon ($1.t); }
|
||
| structsp ';'
|
||
{
|
||
if ($1.t != error_mark_node)
|
||
{
|
||
maybe_process_partial_specialization ($1.t);
|
||
note_got_semicolon ($1.t);
|
||
}
|
||
}
|
||
;
|
||
|
||
datadef:
|
||
nomods_initdecls ';'
|
||
| declmods notype_initdecls ';'
|
||
{}
|
||
| typed_declspecs initdecls ';'
|
||
{ note_list_got_semicolon ($1.t); }
|
||
| declmods ';'
|
||
{ pedwarn ("empty declaration"); }
|
||
| explicit_instantiation ';'
|
||
| typed_declspecs ';'
|
||
{
|
||
tree t, attrs;
|
||
split_specs_attrs ($1.t, &t, &attrs);
|
||
shadow_tag (t);
|
||
note_list_got_semicolon ($1.t);
|
||
}
|
||
| error ';'
|
||
| error '}'
|
||
| error END_OF_SAVED_INPUT
|
||
{ end_input (); }
|
||
| ';'
|
||
| bad_decl
|
||
;
|
||
|
||
ctor_initializer_opt:
|
||
nodecls
|
||
| base_init
|
||
;
|
||
|
||
maybe_return_init:
|
||
/* empty */
|
||
| return_init
|
||
| return_init ';'
|
||
;
|
||
|
||
eat_saved_input:
|
||
/* empty */
|
||
| END_OF_SAVED_INPUT
|
||
;
|
||
|
||
/* The outermost block of a function really begins before the
|
||
mem-initializer-list, so we open one there and suppress the one that
|
||
actually corresponds to the curly braces. */
|
||
function_body:
|
||
.begin_function_body ctor_initializer_opt save_lineno '{'
|
||
{ $<ttype>$ = begin_compound_stmt (/*has_no_scope=*/1); }
|
||
compstmtend
|
||
{
|
||
STMT_LINENO ($<ttype>5) = $3;
|
||
finish_compound_stmt (/*has_no_scope=*/1, $<ttype>5);
|
||
finish_function_body ($1);
|
||
}
|
||
;
|
||
|
||
fndef:
|
||
fn.def1 maybe_return_init function_body
|
||
{ expand_body (finish_function (0)); }
|
||
| fn.def1 maybe_return_init function_try_block
|
||
{ expand_body (finish_function (0)); }
|
||
| fn.def1 maybe_return_init error
|
||
{ }
|
||
;
|
||
|
||
constructor_declarator:
|
||
nested_name_specifier SELFNAME '('
|
||
{ $$ = begin_constructor_declarator ($1, $2); }
|
||
parmlist ')' cv_qualifiers exception_specification_opt
|
||
{ $$ = make_call_declarator ($<ttype>4, $5, $7, $8); }
|
||
| nested_name_specifier SELFNAME LEFT_RIGHT cv_qualifiers exception_specification_opt
|
||
{ $$ = begin_constructor_declarator ($1, $2);
|
||
$$ = make_call_declarator ($$, empty_parms (), $4, $5);
|
||
}
|
||
| global_scope nested_name_specifier SELFNAME '('
|
||
{ $$ = begin_constructor_declarator ($2, $3); }
|
||
parmlist ')' cv_qualifiers exception_specification_opt
|
||
{ $$ = make_call_declarator ($<ttype>5, $6, $8, $9); }
|
||
| global_scope nested_name_specifier SELFNAME LEFT_RIGHT cv_qualifiers exception_specification_opt
|
||
{ $$ = begin_constructor_declarator ($2, $3);
|
||
$$ = make_call_declarator ($$, empty_parms (), $5, $6);
|
||
}
|
||
| nested_name_specifier self_template_type '('
|
||
{ $$ = begin_constructor_declarator ($1, $2); }
|
||
parmlist ')' cv_qualifiers exception_specification_opt
|
||
{ $$ = make_call_declarator ($<ttype>4, $5, $7, $8); }
|
||
| nested_name_specifier self_template_type LEFT_RIGHT cv_qualifiers exception_specification_opt
|
||
{ $$ = begin_constructor_declarator ($1, $2);
|
||
$$ = make_call_declarator ($$, empty_parms (), $4, $5);
|
||
}
|
||
| global_scope nested_name_specifier self_template_type '('
|
||
{ $$ = begin_constructor_declarator ($2, $3); }
|
||
parmlist ')' cv_qualifiers exception_specification_opt
|
||
{ $$ = make_call_declarator ($<ttype>5, $6, $8, $9); }
|
||
| global_scope nested_name_specifier self_template_type LEFT_RIGHT cv_qualifiers exception_specification_opt
|
||
{ $$ = begin_constructor_declarator ($2, $3);
|
||
$$ = make_call_declarator ($$, empty_parms (), $5, $6);
|
||
}
|
||
;
|
||
|
||
fn.def1:
|
||
typed_declspecs declarator
|
||
{ check_for_new_type ("return type", $1);
|
||
if (!begin_function_definition ($1.t, $2))
|
||
YYERROR1; }
|
||
| declmods notype_declarator
|
||
{ if (!begin_function_definition ($1.t, $2))
|
||
YYERROR1; }
|
||
| notype_declarator
|
||
{ if (!begin_function_definition (NULL_TREE, $1))
|
||
YYERROR1; }
|
||
| declmods constructor_declarator
|
||
{ if (!begin_function_definition ($1.t, $2))
|
||
YYERROR1; }
|
||
| constructor_declarator
|
||
{ if (!begin_function_definition (NULL_TREE, $1))
|
||
YYERROR1; }
|
||
;
|
||
|
||
/* ANSI allows optional parentheses around constructor class names.
|
||
See ISO/IEC 14882:1998(E) 12.1. */
|
||
|
||
component_constructor_declarator:
|
||
SELFNAME '(' parmlist ')' cv_qualifiers exception_specification_opt
|
||
{ $$ = make_call_declarator ($1, $3, $5, $6); }
|
||
| '(' SELFNAME ')' '(' parmlist ')' cv_qualifiers
|
||
exception_specification_opt
|
||
{ $$ = make_call_declarator ($2, $5, $7, $8); }
|
||
| SELFNAME LEFT_RIGHT cv_qualifiers exception_specification_opt
|
||
{ $$ = make_call_declarator ($1, empty_parms (), $3, $4); }
|
||
| '(' SELFNAME ')' LEFT_RIGHT cv_qualifiers exception_specification_opt
|
||
{ $$ = make_call_declarator ($2, empty_parms (), $5, $6); }
|
||
| self_template_type '(' parmlist ')' cv_qualifiers exception_specification_opt
|
||
{ $$ = make_call_declarator ($1, $3, $5, $6); }
|
||
| self_template_type LEFT_RIGHT cv_qualifiers exception_specification_opt
|
||
{ $$ = make_call_declarator ($1, empty_parms (), $3, $4); }
|
||
;
|
||
|
||
/* more C++ complexity. See component_decl for a comment on the
|
||
reduce/reduce conflict introduced by these rules. */
|
||
fn.def2:
|
||
declmods component_constructor_declarator
|
||
{ $$ = parse_method ($2, $1.t, $1.lookups);
|
||
rest_of_mdef:
|
||
if (! $$)
|
||
YYERROR1;
|
||
if (yychar == YYEMPTY)
|
||
yychar = YYLEX;
|
||
snarf_method ($$); }
|
||
| component_constructor_declarator
|
||
{ $$ = parse_method ($1, NULL_TREE, NULL_TREE);
|
||
goto rest_of_mdef; }
|
||
| typed_declspecs declarator
|
||
{ $$ = parse_method ($2, $1.t, $1.lookups); goto rest_of_mdef;}
|
||
| declmods notype_declarator
|
||
{ $$ = parse_method ($2, $1.t, $1.lookups); goto rest_of_mdef;}
|
||
| notype_declarator
|
||
{ $$ = parse_method ($1, NULL_TREE, NULL_TREE);
|
||
goto rest_of_mdef; }
|
||
| declmods constructor_declarator
|
||
{ $$ = parse_method ($2, $1.t, $1.lookups); goto rest_of_mdef;}
|
||
| constructor_declarator
|
||
{ $$ = parse_method ($1, NULL_TREE, NULL_TREE);
|
||
goto rest_of_mdef; }
|
||
;
|
||
|
||
return_id:
|
||
RETURN_KEYWORD IDENTIFIER
|
||
{
|
||
$$ = $2;
|
||
}
|
||
;
|
||
|
||
return_init:
|
||
return_id maybe_init
|
||
{ finish_named_return_value ($<ttype>$, $2); }
|
||
| return_id '(' nonnull_exprlist ')'
|
||
{ finish_named_return_value ($<ttype>$, $3); }
|
||
| return_id LEFT_RIGHT
|
||
{ finish_named_return_value ($<ttype>$, NULL_TREE); }
|
||
;
|
||
|
||
base_init:
|
||
':' member_init_list
|
||
{
|
||
if (! DECL_CONSTRUCTOR_P (current_function_decl))
|
||
error ("only constructors take base initializers");
|
||
else if ($2.new_type_flag == 0)
|
||
error ("no base or member initializers given following ':'");
|
||
|
||
finish_mem_initializers ($2.t);
|
||
}
|
||
;
|
||
|
||
.begin_function_body:
|
||
/* empty */
|
||
{
|
||
$$ = begin_function_body ();
|
||
}
|
||
;
|
||
|
||
member_init_list:
|
||
/* empty */
|
||
{
|
||
$$.new_type_flag = 0;
|
||
$$.t = NULL_TREE;
|
||
}
|
||
| member_init
|
||
{
|
||
$$.new_type_flag = 1;
|
||
$$.t = $1;
|
||
}
|
||
| member_init_list ',' member_init
|
||
{
|
||
if ($3)
|
||
{
|
||
$$.new_type_flag = 1;
|
||
TREE_CHAIN ($3) = $1.t;
|
||
$$.t = $3;
|
||
}
|
||
else
|
||
$$ = $1;
|
||
}
|
||
| member_init_list error
|
||
;
|
||
|
||
member_init:
|
||
'(' nonnull_exprlist ')'
|
||
{
|
||
if (current_class_name)
|
||
pedwarn ("anachronistic old style base class initializer");
|
||
$$ = expand_member_init (current_class_ref, NULL_TREE, $2);
|
||
}
|
||
| LEFT_RIGHT
|
||
{
|
||
if (current_class_name)
|
||
pedwarn ("anachronistic old style base class initializer");
|
||
$$ = expand_member_init (current_class_ref,
|
||
NULL_TREE,
|
||
void_type_node);
|
||
}
|
||
| notype_identifier '(' nonnull_exprlist ')'
|
||
{ $$ = expand_member_init (current_class_ref, $1, $3); }
|
||
| notype_identifier LEFT_RIGHT
|
||
{ $$ = expand_member_init (current_class_ref, $1,
|
||
void_type_node); }
|
||
| nonnested_type '(' nonnull_exprlist ')'
|
||
{ $$ = expand_member_init (current_class_ref, $1, $3); }
|
||
| nonnested_type LEFT_RIGHT
|
||
{ $$ = expand_member_init (current_class_ref, $1,
|
||
void_type_node); }
|
||
| typename_sub '(' nonnull_exprlist ')'
|
||
{ $$ = expand_member_init (current_class_ref, $1, $3); }
|
||
| typename_sub LEFT_RIGHT
|
||
{ $$ = expand_member_init (current_class_ref, $1,
|
||
void_type_node); }
|
||
| error
|
||
{ $$ = NULL_TREE; }
|
||
;
|
||
|
||
identifier:
|
||
IDENTIFIER
|
||
| tTYPENAME
|
||
| SELFNAME
|
||
| PTYPENAME
|
||
| NSNAME
|
||
;
|
||
|
||
notype_identifier:
|
||
IDENTIFIER
|
||
| PTYPENAME
|
||
| NSNAME %prec EMPTY
|
||
;
|
||
|
||
identifier_defn:
|
||
IDENTIFIER_DEFN
|
||
| TYPENAME_DEFN
|
||
| PTYPENAME_DEFN
|
||
;
|
||
|
||
explicit_instantiation:
|
||
TEMPLATE begin_explicit_instantiation typespec ';'
|
||
{ do_type_instantiation ($3.t, NULL_TREE, 1);
|
||
yyungetc (';', 1); }
|
||
end_explicit_instantiation
|
||
| TEMPLATE begin_explicit_instantiation typed_declspecs declarator
|
||
{ tree specs = strip_attrs ($3.t);
|
||
do_decl_instantiation (specs, $4, NULL_TREE); }
|
||
end_explicit_instantiation
|
||
| TEMPLATE begin_explicit_instantiation notype_declarator
|
||
{ do_decl_instantiation (NULL_TREE, $3, NULL_TREE); }
|
||
end_explicit_instantiation
|
||
| TEMPLATE begin_explicit_instantiation constructor_declarator
|
||
{ do_decl_instantiation (NULL_TREE, $3, NULL_TREE); }
|
||
end_explicit_instantiation
|
||
| SCSPEC TEMPLATE begin_explicit_instantiation typespec ';'
|
||
{ do_type_instantiation ($4.t, $1, 1);
|
||
yyungetc (';', 1); }
|
||
end_explicit_instantiation
|
||
{}
|
||
| SCSPEC TEMPLATE begin_explicit_instantiation typed_declspecs
|
||
declarator
|
||
{ tree specs = strip_attrs ($4.t);
|
||
do_decl_instantiation (specs, $5, $1); }
|
||
end_explicit_instantiation
|
||
{}
|
||
| SCSPEC TEMPLATE begin_explicit_instantiation notype_declarator
|
||
{ do_decl_instantiation (NULL_TREE, $4, $1); }
|
||
end_explicit_instantiation
|
||
{}
|
||
| SCSPEC TEMPLATE begin_explicit_instantiation constructor_declarator
|
||
{ do_decl_instantiation (NULL_TREE, $4, $1); }
|
||
end_explicit_instantiation
|
||
{}
|
||
;
|
||
|
||
begin_explicit_instantiation:
|
||
{ begin_explicit_instantiation(); }
|
||
;
|
||
|
||
end_explicit_instantiation:
|
||
{ end_explicit_instantiation(); }
|
||
;
|
||
|
||
/* The TYPENAME expansions are to deal with use of a template class name as
|
||
a template within the class itself, where the template decl is hidden by
|
||
a type decl. Got all that? */
|
||
|
||
template_type:
|
||
PTYPENAME '<' template_arg_list_opt template_close_bracket
|
||
.finish_template_type
|
||
{ $$ = $5; }
|
||
| tTYPENAME '<' template_arg_list_opt template_close_bracket
|
||
.finish_template_type
|
||
{ $$ = $5; }
|
||
| self_template_type
|
||
;
|
||
|
||
apparent_template_type:
|
||
template_type
|
||
| identifier '<' template_arg_list_opt '>'
|
||
.finish_template_type
|
||
{ $$ = $5; }
|
||
;
|
||
|
||
self_template_type:
|
||
SELFNAME '<' template_arg_list_opt template_close_bracket
|
||
.finish_template_type
|
||
{ $$ = $5; }
|
||
;
|
||
|
||
.finish_template_type:
|
||
{
|
||
if (yychar == YYEMPTY)
|
||
yychar = YYLEX;
|
||
|
||
$$ = finish_template_type ($<ttype>-3, $<ttype>-1,
|
||
yychar == SCOPE);
|
||
}
|
||
;
|
||
|
||
template_close_bracket:
|
||
'>'
|
||
| RSHIFT
|
||
{
|
||
/* Handle `Class<Class<Type>>' without space in the `>>' */
|
||
pedwarn ("`>>' should be `> >' in template class name");
|
||
yyungetc ('>', 1);
|
||
}
|
||
;
|
||
|
||
template_arg_list_opt:
|
||
/* empty */
|
||
{ $$ = NULL_TREE; }
|
||
| template_arg_list
|
||
;
|
||
|
||
template_arg_list:
|
||
template_arg
|
||
{ $$ = build_tree_list (NULL_TREE, $$); }
|
||
| template_arg_list ',' template_arg
|
||
{ $$ = chainon ($$, build_tree_list (NULL_TREE, $3)); }
|
||
;
|
||
|
||
template_arg:
|
||
type_id
|
||
{ $$ = groktypename ($1.t); }
|
||
| PTYPENAME
|
||
{
|
||
$$ = lastiddecl;
|
||
if (DECL_TEMPLATE_TEMPLATE_PARM_P ($$))
|
||
$$ = TREE_TYPE ($$);
|
||
}
|
||
| global_scope PTYPENAME
|
||
{
|
||
$$ = lastiddecl;
|
||
if (DECL_TEMPLATE_TEMPLATE_PARM_P ($$))
|
||
$$ = TREE_TYPE ($$);
|
||
}
|
||
| expr_no_comma_rangle
|
||
| nested_name_specifier TEMPLATE identifier
|
||
{
|
||
if (!processing_template_decl)
|
||
{
|
||
error ("use of template qualifier outside template");
|
||
$$ = error_mark_node;
|
||
}
|
||
else
|
||
$$ = make_unbound_class_template ($1, $3, 1);
|
||
}
|
||
;
|
||
|
||
unop:
|
||
'-'
|
||
{ $$ = NEGATE_EXPR; }
|
||
| '+'
|
||
{ $$ = CONVERT_EXPR; }
|
||
| PLUSPLUS
|
||
{ $$ = PREINCREMENT_EXPR; }
|
||
| MINUSMINUS
|
||
{ $$ = PREDECREMENT_EXPR; }
|
||
| '!'
|
||
{ $$ = TRUTH_NOT_EXPR; }
|
||
;
|
||
|
||
expr:
|
||
nontrivial_exprlist
|
||
{ $$ = build_x_compound_expr ($$); }
|
||
| expr_no_commas
|
||
;
|
||
|
||
paren_expr_or_null:
|
||
LEFT_RIGHT
|
||
{ error ("ISO C++ forbids an empty condition for `%s'",
|
||
cond_stmt_keyword);
|
||
$$ = integer_zero_node; }
|
||
| '(' expr ')'
|
||
{ $$ = $2; }
|
||
;
|
||
|
||
paren_cond_or_null:
|
||
LEFT_RIGHT
|
||
{ error ("ISO C++ forbids an empty condition for `%s'",
|
||
cond_stmt_keyword);
|
||
$$ = integer_zero_node; }
|
||
| '(' condition ')'
|
||
{ $$ = $2; }
|
||
;
|
||
|
||
xcond:
|
||
/* empty */
|
||
{ $$ = NULL_TREE; }
|
||
| condition
|
||
| error
|
||
{ $$ = NULL_TREE; }
|
||
;
|
||
|
||
condition:
|
||
type_specifier_seq declarator maybeasm maybe_attribute '='
|
||
{ {
|
||
tree d;
|
||
for (d = getdecls (); d; d = TREE_CHAIN (d))
|
||
if (TREE_CODE (d) == TYPE_DECL) {
|
||
tree s = TREE_TYPE (d);
|
||
if (TREE_CODE (s) == RECORD_TYPE)
|
||
error ("definition of class `%T' in condition", s);
|
||
else if (TREE_CODE (s) == ENUMERAL_TYPE)
|
||
error ("definition of enum `%T' in condition", s);
|
||
}
|
||
}
|
||
current_declspecs = $1.t;
|
||
$<ttype>$ = parse_decl ($<ttype>2, $4, 1);
|
||
}
|
||
init
|
||
{
|
||
parse_end_decl ($<ttype>6, $7, $4);
|
||
$$ = convert_from_reference ($<ttype>6);
|
||
if (TREE_CODE (TREE_TYPE ($$)) == ARRAY_TYPE)
|
||
error ("definition of array `%#D' in condition", $$);
|
||
}
|
||
| expr
|
||
;
|
||
|
||
compstmtend:
|
||
'}'
|
||
| maybe_label_decls stmts '}'
|
||
| maybe_label_decls stmts error '}'
|
||
| maybe_label_decls error '}'
|
||
;
|
||
|
||
nontrivial_exprlist:
|
||
expr_no_commas ',' expr_no_commas
|
||
{ $$ = tree_cons (NULL_TREE, $$,
|
||
build_tree_list (NULL_TREE, $3)); }
|
||
| expr_no_commas ',' error
|
||
{ $$ = tree_cons (NULL_TREE, $$,
|
||
build_tree_list (NULL_TREE, error_mark_node)); }
|
||
| nontrivial_exprlist ',' expr_no_commas
|
||
{ chainon ($$, build_tree_list (NULL_TREE, $3)); }
|
||
| nontrivial_exprlist ',' error
|
||
{ chainon ($$, build_tree_list (NULL_TREE, error_mark_node)); }
|
||
;
|
||
|
||
nonnull_exprlist:
|
||
expr_no_commas
|
||
{ $$ = build_tree_list (NULL_TREE, $$); }
|
||
| nontrivial_exprlist
|
||
;
|
||
|
||
unary_expr:
|
||
primary %prec UNARY
|
||
{ $$ = $1; }
|
||
/* __extension__ turns off -pedantic for following primary. */
|
||
| extension cast_expr %prec UNARY
|
||
{ $$ = $2;
|
||
pedantic = $1; }
|
||
| '*' cast_expr %prec UNARY
|
||
{ $$ = build_x_indirect_ref ($2, "unary *"); }
|
||
| '&' cast_expr %prec UNARY
|
||
{ $$ = build_x_unary_op (ADDR_EXPR, $2); }
|
||
| '~' cast_expr
|
||
{ $$ = build_x_unary_op (BIT_NOT_EXPR, $2); }
|
||
| unop cast_expr %prec UNARY
|
||
{ $$ = finish_unary_op_expr ($1, $2); }
|
||
/* Refer to the address of a label as a pointer. */
|
||
| ANDAND identifier
|
||
{ $$ = finish_label_address_expr ($2); }
|
||
| sizeof unary_expr %prec UNARY
|
||
{ $$ = finish_sizeof ($2);
|
||
skip_evaluation--; }
|
||
| sizeof '(' type_id ')' %prec HYPERUNARY
|
||
{ $$ = finish_sizeof (groktypename ($3.t));
|
||
check_for_new_type ("sizeof", $3);
|
||
skip_evaluation--; }
|
||
| alignof unary_expr %prec UNARY
|
||
{ $$ = finish_alignof ($2);
|
||
skip_evaluation--; }
|
||
| alignof '(' type_id ')' %prec HYPERUNARY
|
||
{ $$ = finish_alignof (groktypename ($3.t));
|
||
check_for_new_type ("alignof", $3);
|
||
skip_evaluation--; }
|
||
|
||
/* The %prec EMPTY's here are required by the = init initializer
|
||
syntax extension; see below. */
|
||
| new new_type_id %prec EMPTY
|
||
{ $$ = build_new (NULL_TREE, $2.t, NULL_TREE, $1);
|
||
check_for_new_type ("new", $2); }
|
||
| new new_type_id new_initializer
|
||
{ $$ = build_new (NULL_TREE, $2.t, $3, $1);
|
||
check_for_new_type ("new", $2); }
|
||
| new new_placement new_type_id %prec EMPTY
|
||
{ $$ = build_new ($2, $3.t, NULL_TREE, $1);
|
||
check_for_new_type ("new", $3); }
|
||
| new new_placement new_type_id new_initializer
|
||
{ $$ = build_new ($2, $3.t, $4, $1);
|
||
check_for_new_type ("new", $3); }
|
||
| new '(' type_id ')'
|
||
%prec EMPTY
|
||
{ $$ = build_new (NULL_TREE, groktypename($3.t),
|
||
NULL_TREE, $1);
|
||
check_for_new_type ("new", $3); }
|
||
| new '(' type_id ')' new_initializer
|
||
{ $$ = build_new (NULL_TREE, groktypename($3.t), $5, $1);
|
||
check_for_new_type ("new", $3); }
|
||
| new new_placement '(' type_id ')' %prec EMPTY
|
||
{ $$ = build_new ($2, groktypename($4.t), NULL_TREE, $1);
|
||
check_for_new_type ("new", $4); }
|
||
| new new_placement '(' type_id ')' new_initializer
|
||
{ $$ = build_new ($2, groktypename($4.t), $6, $1);
|
||
check_for_new_type ("new", $4); }
|
||
|
||
| delete cast_expr %prec UNARY
|
||
{ $$ = delete_sanity ($2, NULL_TREE, 0, $1); }
|
||
| delete '[' ']' cast_expr %prec UNARY
|
||
{ $$ = delete_sanity ($4, NULL_TREE, 1, $1);
|
||
if (yychar == YYEMPTY)
|
||
yychar = YYLEX; }
|
||
| delete '[' expr ']' cast_expr %prec UNARY
|
||
{ $$ = delete_sanity ($5, $3, 2, $1);
|
||
if (yychar == YYEMPTY)
|
||
yychar = YYLEX; }
|
||
| REALPART cast_expr %prec UNARY
|
||
{ $$ = build_x_unary_op (REALPART_EXPR, $2); }
|
||
| IMAGPART cast_expr %prec UNARY
|
||
{ $$ = build_x_unary_op (IMAGPART_EXPR, $2); }
|
||
;
|
||
|
||
new_placement:
|
||
'(' nonnull_exprlist ')'
|
||
{ $$ = $2; }
|
||
| '{' nonnull_exprlist '}'
|
||
{ pedwarn ("old style placement syntax, use () instead");
|
||
$$ = $2; }
|
||
;
|
||
|
||
new_initializer:
|
||
'(' nonnull_exprlist ')'
|
||
{ $$ = $2; }
|
||
| LEFT_RIGHT
|
||
{ $$ = void_zero_node; }
|
||
| '(' typespec ')'
|
||
{
|
||
error ("`%T' is not a valid expression", $2.t);
|
||
$$ = error_mark_node;
|
||
}
|
||
/* GNU extension so people can use initializer lists. Note that
|
||
this alters the meaning of `new int = 1', which was previously
|
||
syntactically valid but semantically invalid.
|
||
This feature is now deprecated and will be removed in a future
|
||
release. */
|
||
| '=' init
|
||
{
|
||
if (pedantic)
|
||
pedwarn ("ISO C++ forbids initialization of new expression with `='");
|
||
cp_deprecated ("new initializer lists extension");
|
||
if (TREE_CODE ($2) != TREE_LIST
|
||
&& TREE_CODE ($2) != CONSTRUCTOR)
|
||
$$ = build_tree_list (NULL_TREE, $2);
|
||
else
|
||
$$ = $2;
|
||
}
|
||
;
|
||
|
||
/* This is necessary to postpone reduction of `int ((int)(int)(int))'. */
|
||
regcast_or_absdcl:
|
||
'(' type_id ')' %prec EMPTY
|
||
{ $2.t = finish_parmlist (build_tree_list (NULL_TREE, $2.t), 0);
|
||
$$ = make_call_declarator (NULL_TREE, $2.t, NULL_TREE, NULL_TREE);
|
||
check_for_new_type ("cast", $2); }
|
||
| regcast_or_absdcl '(' type_id ')' %prec EMPTY
|
||
{ $3.t = finish_parmlist (build_tree_list (NULL_TREE, $3.t), 0);
|
||
$$ = make_call_declarator ($$, $3.t, NULL_TREE, NULL_TREE);
|
||
check_for_new_type ("cast", $3); }
|
||
;
|
||
|
||
cast_expr:
|
||
unary_expr
|
||
| regcast_or_absdcl unary_expr %prec UNARY
|
||
{ $$ = reparse_absdcl_as_casts ($$, $2); }
|
||
| regcast_or_absdcl '{' initlist maybecomma '}' %prec UNARY
|
||
{
|
||
tree init = build_nt (CONSTRUCTOR, NULL_TREE,
|
||
nreverse ($3));
|
||
if (pedantic)
|
||
pedwarn ("ISO C++ forbids compound literals");
|
||
/* Indicate that this was a C99 compound literal. */
|
||
TREE_HAS_CONSTRUCTOR (init) = 1;
|
||
|
||
$$ = reparse_absdcl_as_casts ($$, init);
|
||
}
|
||
;
|
||
|
||
expr_no_commas:
|
||
cast_expr
|
||
/* Handle general members. */
|
||
| expr_no_commas POINTSAT_STAR expr_no_commas
|
||
{ $$ = build_x_binary_op (MEMBER_REF, $$, $3); }
|
||
| expr_no_commas DOT_STAR expr_no_commas
|
||
{ $$ = build_m_component_ref ($$, $3); }
|
||
| expr_no_commas '+' expr_no_commas
|
||
{ $$ = build_x_binary_op ($2, $$, $3); }
|
||
| expr_no_commas '-' expr_no_commas
|
||
{ $$ = build_x_binary_op ($2, $$, $3); }
|
||
| expr_no_commas '*' expr_no_commas
|
||
{ $$ = build_x_binary_op ($2, $$, $3); }
|
||
| expr_no_commas '/' expr_no_commas
|
||
{ $$ = build_x_binary_op ($2, $$, $3); }
|
||
| expr_no_commas '%' expr_no_commas
|
||
{ $$ = build_x_binary_op ($2, $$, $3); }
|
||
| expr_no_commas LSHIFT expr_no_commas
|
||
{ $$ = build_x_binary_op ($2, $$, $3); }
|
||
| expr_no_commas RSHIFT expr_no_commas
|
||
{ $$ = build_x_binary_op ($2, $$, $3); }
|
||
| expr_no_commas ARITHCOMPARE expr_no_commas
|
||
{ $$ = build_x_binary_op ($2, $$, $3); }
|
||
| expr_no_commas '<' expr_no_commas
|
||
{ $$ = build_x_binary_op (LT_EXPR, $$, $3); }
|
||
| expr_no_commas '>' expr_no_commas
|
||
{ $$ = build_x_binary_op (GT_EXPR, $$, $3); }
|
||
| expr_no_commas EQCOMPARE expr_no_commas
|
||
{ $$ = build_x_binary_op ($2, $$, $3); }
|
||
| expr_no_commas MIN_MAX expr_no_commas
|
||
{ $$ = build_x_binary_op ($2, $$, $3); }
|
||
| expr_no_commas '&' expr_no_commas
|
||
{ $$ = build_x_binary_op ($2, $$, $3); }
|
||
| expr_no_commas '|' expr_no_commas
|
||
{ $$ = build_x_binary_op ($2, $$, $3); }
|
||
| expr_no_commas '^' expr_no_commas
|
||
{ $$ = build_x_binary_op ($2, $$, $3); }
|
||
| expr_no_commas ANDAND expr_no_commas
|
||
{ $$ = build_x_binary_op (TRUTH_ANDIF_EXPR, $$, $3); }
|
||
| expr_no_commas OROR expr_no_commas
|
||
{ $$ = build_x_binary_op (TRUTH_ORIF_EXPR, $$, $3); }
|
||
| expr_no_commas '?' xexpr ':' expr_no_commas
|
||
{ $$ = build_x_conditional_expr ($$, $3, $5); }
|
||
| expr_no_commas '=' expr_no_commas
|
||
{ $$ = build_x_modify_expr ($$, NOP_EXPR, $3);
|
||
if ($$ != error_mark_node)
|
||
C_SET_EXP_ORIGINAL_CODE ($$, MODIFY_EXPR); }
|
||
| expr_no_commas ASSIGN expr_no_commas
|
||
{ $$ = build_x_modify_expr ($$, $2, $3); }
|
||
| THROW
|
||
{ $$ = build_throw (NULL_TREE); }
|
||
| THROW expr_no_commas
|
||
{ $$ = build_throw ($2); }
|
||
;
|
||
|
||
expr_no_comma_rangle:
|
||
cast_expr
|
||
/* Handle general members. */
|
||
| expr_no_comma_rangle POINTSAT_STAR expr_no_comma_rangle
|
||
{ $$ = build_x_binary_op (MEMBER_REF, $$, $3); }
|
||
| expr_no_comma_rangle DOT_STAR expr_no_comma_rangle
|
||
{ $$ = build_m_component_ref ($$, $3); }
|
||
| expr_no_comma_rangle '+' expr_no_comma_rangle
|
||
{ $$ = build_x_binary_op ($2, $$, $3); }
|
||
| expr_no_comma_rangle '-' expr_no_comma_rangle
|
||
{ $$ = build_x_binary_op ($2, $$, $3); }
|
||
| expr_no_comma_rangle '*' expr_no_comma_rangle
|
||
{ $$ = build_x_binary_op ($2, $$, $3); }
|
||
| expr_no_comma_rangle '/' expr_no_comma_rangle
|
||
{ $$ = build_x_binary_op ($2, $$, $3); }
|
||
| expr_no_comma_rangle '%' expr_no_comma_rangle
|
||
{ $$ = build_x_binary_op ($2, $$, $3); }
|
||
| expr_no_comma_rangle LSHIFT expr_no_comma_rangle
|
||
{ $$ = build_x_binary_op ($2, $$, $3); }
|
||
| expr_no_comma_rangle RSHIFT expr_no_comma_rangle
|
||
{ $$ = build_x_binary_op ($2, $$, $3); }
|
||
| expr_no_comma_rangle ARITHCOMPARE expr_no_comma_rangle
|
||
{ $$ = build_x_binary_op ($2, $$, $3); }
|
||
| expr_no_comma_rangle '<' expr_no_comma_rangle
|
||
{ $$ = build_x_binary_op (LT_EXPR, $$, $3); }
|
||
| expr_no_comma_rangle EQCOMPARE expr_no_comma_rangle
|
||
{ $$ = build_x_binary_op ($2, $$, $3); }
|
||
| expr_no_comma_rangle MIN_MAX expr_no_comma_rangle
|
||
{ $$ = build_x_binary_op ($2, $$, $3); }
|
||
| expr_no_comma_rangle '&' expr_no_comma_rangle
|
||
{ $$ = build_x_binary_op ($2, $$, $3); }
|
||
| expr_no_comma_rangle '|' expr_no_comma_rangle
|
||
{ $$ = build_x_binary_op ($2, $$, $3); }
|
||
| expr_no_comma_rangle '^' expr_no_comma_rangle
|
||
{ $$ = build_x_binary_op ($2, $$, $3); }
|
||
| expr_no_comma_rangle ANDAND expr_no_comma_rangle
|
||
{ $$ = build_x_binary_op (TRUTH_ANDIF_EXPR, $$, $3); }
|
||
| expr_no_comma_rangle OROR expr_no_comma_rangle
|
||
{ $$ = build_x_binary_op (TRUTH_ORIF_EXPR, $$, $3); }
|
||
| expr_no_comma_rangle '?' xexpr ':' expr_no_comma_rangle
|
||
{ $$ = build_x_conditional_expr ($$, $3, $5); }
|
||
| expr_no_comma_rangle '=' expr_no_comma_rangle
|
||
{ $$ = build_x_modify_expr ($$, NOP_EXPR, $3);
|
||
if ($$ != error_mark_node)
|
||
C_SET_EXP_ORIGINAL_CODE ($$, MODIFY_EXPR); }
|
||
| expr_no_comma_rangle ASSIGN expr_no_comma_rangle
|
||
{ $$ = build_x_modify_expr ($$, $2, $3); }
|
||
| THROW
|
||
{ $$ = build_throw (NULL_TREE); }
|
||
| THROW expr_no_comma_rangle
|
||
{ $$ = build_throw ($2); }
|
||
;
|
||
|
||
notype_unqualified_id:
|
||
'~' see_typename identifier
|
||
{ $$ = build_nt (BIT_NOT_EXPR, $3); }
|
||
| '~' see_typename template_type
|
||
{ $$ = build_nt (BIT_NOT_EXPR, $3); }
|
||
| template_id
|
||
| operator_name
|
||
| IDENTIFIER
|
||
| PTYPENAME
|
||
| NSNAME %prec EMPTY
|
||
;
|
||
|
||
do_id:
|
||
{
|
||
/* If lastiddecl is a TREE_LIST, it's a baselink, which
|
||
means that we're in an expression like S::f<int>, so
|
||
don't do_identifier; we only do that for unqualified
|
||
identifiers. */
|
||
if (!lastiddecl || TREE_CODE (lastiddecl) != TREE_LIST)
|
||
$$ = do_identifier ($<ttype>-1, 3, NULL_TREE);
|
||
else
|
||
$$ = $<ttype>-1;
|
||
}
|
||
;
|
||
|
||
template_id:
|
||
PFUNCNAME '<' do_id template_arg_list_opt template_close_bracket
|
||
{ $$ = lookup_template_function ($3, $4); }
|
||
| operator_name '<' do_id template_arg_list_opt template_close_bracket
|
||
{ $$ = lookup_template_function ($3, $4); }
|
||
;
|
||
|
||
object_template_id:
|
||
TEMPLATE identifier '<' template_arg_list_opt template_close_bracket
|
||
{ $$ = lookup_template_function ($2, $4); }
|
||
| TEMPLATE PFUNCNAME '<' template_arg_list_opt template_close_bracket
|
||
{ $$ = lookup_template_function ($2, $4); }
|
||
| TEMPLATE operator_name '<' template_arg_list_opt
|
||
template_close_bracket
|
||
{ $$ = lookup_template_function ($2, $4); }
|
||
;
|
||
|
||
unqualified_id:
|
||
notype_unqualified_id
|
||
| tTYPENAME
|
||
| SELFNAME
|
||
;
|
||
|
||
expr_or_declarator_intern:
|
||
expr_or_declarator
|
||
| attributes expr_or_declarator
|
||
{
|
||
/* Provide support for '(' attributes '*' declarator ')'
|
||
etc */
|
||
$$ = tree_cons ($1, $2, NULL_TREE);
|
||
}
|
||
;
|
||
|
||
expr_or_declarator:
|
||
notype_unqualified_id
|
||
| '*' expr_or_declarator_intern %prec UNARY
|
||
{ $$ = build_nt (INDIRECT_REF, $2); }
|
||
| '&' expr_or_declarator_intern %prec UNARY
|
||
{ $$ = build_nt (ADDR_EXPR, $2); }
|
||
| '(' expr_or_declarator_intern ')'
|
||
{ $$ = $2; }
|
||
;
|
||
|
||
notype_template_declarator:
|
||
IDENTIFIER '<' template_arg_list_opt template_close_bracket
|
||
{ $$ = lookup_template_function ($1, $3); }
|
||
| NSNAME '<' template_arg_list template_close_bracket
|
||
{ $$ = lookup_template_function ($1, $3); }
|
||
;
|
||
|
||
direct_notype_declarator:
|
||
complex_direct_notype_declarator
|
||
/* This precedence declaration is to prefer this reduce
|
||
to the Koenig lookup shift in primary, below. I hate yacc. */
|
||
| notype_unqualified_id %prec '('
|
||
| notype_template_declarator
|
||
| '(' expr_or_declarator_intern ')'
|
||
{ $$ = finish_decl_parsing ($2); }
|
||
;
|
||
|
||
primary:
|
||
notype_unqualified_id
|
||
{
|
||
if (TREE_CODE ($1) == BIT_NOT_EXPR)
|
||
$$ = build_x_unary_op (BIT_NOT_EXPR, TREE_OPERAND ($1, 0));
|
||
else
|
||
$$ = finish_id_expr ($1);
|
||
}
|
||
| CONSTANT
|
||
| boolean.literal
|
||
| string
|
||
{
|
||
$$ = combine_strings ($$);
|
||
/* combine_strings doesn't set up TYPE_MAIN_VARIANT of
|
||
a const array the way we want, so fix it. */
|
||
if (flag_const_strings)
|
||
TREE_TYPE ($$) = build_cplus_array_type
|
||
(TREE_TYPE (TREE_TYPE ($$)),
|
||
TYPE_DOMAIN (TREE_TYPE ($$)));
|
||
}
|
||
| VAR_FUNC_NAME
|
||
{
|
||
$$ = fname_decl (C_RID_CODE ($$), $$);
|
||
if (processing_template_decl)
|
||
$$ = build_min_nt (LOOKUP_EXPR, DECL_NAME ($$));
|
||
}
|
||
| '(' expr ')'
|
||
{ $$ = finish_parenthesized_expr ($2); }
|
||
| '(' expr_or_declarator_intern ')'
|
||
{ $2 = reparse_decl_as_expr (NULL_TREE, $2);
|
||
$$ = finish_parenthesized_expr ($2); }
|
||
| '(' error ')'
|
||
{ $$ = error_mark_node; }
|
||
| '('
|
||
{ tree scope = current_scope ();
|
||
if (!scope || TREE_CODE (scope) != FUNCTION_DECL)
|
||
{
|
||
error ("braced-group within expression allowed only inside a function");
|
||
YYERROR;
|
||
}
|
||
if (pedantic)
|
||
pedwarn ("ISO C++ forbids braced-groups within expressions");
|
||
$<ttype>$ = begin_stmt_expr ();
|
||
}
|
||
compstmt_or_stmtexpr ')'
|
||
{ $$ = finish_stmt_expr ($<ttype>2); }
|
||
/* Koenig lookup support
|
||
We could store lastiddecl in $1 to avoid another lookup,
|
||
but that would result in many additional reduce/reduce conflicts. */
|
||
| notype_unqualified_id '(' nonnull_exprlist ')'
|
||
{ $$ = finish_call_expr ($1, $3, 1); }
|
||
| notype_unqualified_id LEFT_RIGHT
|
||
{ $$ = finish_call_expr ($1, NULL_TREE, 1); }
|
||
| primary '(' nonnull_exprlist ')'
|
||
{ $$ = finish_call_expr ($1, $3, 0); }
|
||
| primary LEFT_RIGHT
|
||
{ $$ = finish_call_expr ($1, NULL_TREE, 0); }
|
||
| VA_ARG '(' expr_no_commas ',' type_id ')'
|
||
{ $$ = build_x_va_arg ($3, groktypename ($5.t));
|
||
check_for_new_type ("__builtin_va_arg", $5); }
|
||
| primary '[' expr ']'
|
||
{ $$ = grok_array_decl ($$, $3); }
|
||
| primary PLUSPLUS
|
||
{ $$ = finish_increment_expr ($1, POSTINCREMENT_EXPR); }
|
||
| primary MINUSMINUS
|
||
{ $$ = finish_increment_expr ($1, POSTDECREMENT_EXPR); }
|
||
/* C++ extensions */
|
||
| THIS
|
||
{ $$ = finish_this_expr (); }
|
||
| CV_QUALIFIER '(' nonnull_exprlist ')'
|
||
{
|
||
/* This is a C cast in C++'s `functional' notation
|
||
using the "implicit int" extension so that:
|
||
`const (3)' is equivalent to `const int (3)'. */
|
||
tree type;
|
||
|
||
type = hash_tree_cons (NULL_TREE, $1, NULL_TREE);
|
||
type = groktypename (build_tree_list (type, NULL_TREE));
|
||
$$ = build_functional_cast (type, $3);
|
||
}
|
||
| functional_cast
|
||
| DYNAMIC_CAST '<' type_id '>' '(' expr ')'
|
||
{ tree type = groktypename ($3.t);
|
||
check_for_new_type ("dynamic_cast", $3);
|
||
$$ = build_dynamic_cast (type, $6); }
|
||
| STATIC_CAST '<' type_id '>' '(' expr ')'
|
||
{ tree type = groktypename ($3.t);
|
||
check_for_new_type ("static_cast", $3);
|
||
$$ = build_static_cast (type, $6); }
|
||
| REINTERPRET_CAST '<' type_id '>' '(' expr ')'
|
||
{ tree type = groktypename ($3.t);
|
||
check_for_new_type ("reinterpret_cast", $3);
|
||
$$ = build_reinterpret_cast (type, $6); }
|
||
| CONST_CAST '<' type_id '>' '(' expr ')'
|
||
{ tree type = groktypename ($3.t);
|
||
check_for_new_type ("const_cast", $3);
|
||
$$ = build_const_cast (type, $6); }
|
||
| TYPEID '(' expr ')'
|
||
{ $$ = build_typeid ($3); }
|
||
| TYPEID '(' type_id ')'
|
||
{ tree type = groktypename ($3.t);
|
||
check_for_new_type ("typeid", $3);
|
||
$$ = get_typeid (type); }
|
||
| global_scope IDENTIFIER
|
||
{ $$ = do_scoped_id ($2, 1); }
|
||
| global_scope template_id
|
||
{ $$ = $2; }
|
||
| global_scope operator_name
|
||
{
|
||
got_scope = NULL_TREE;
|
||
if (TREE_CODE ($2) == IDENTIFIER_NODE)
|
||
$$ = do_scoped_id ($2, 1);
|
||
else
|
||
$$ = $2;
|
||
}
|
||
| overqualified_id %prec HYPERUNARY
|
||
{ $$ = build_offset_ref (OP0 ($$), OP1 ($$)); }
|
||
| overqualified_id '(' nonnull_exprlist ')'
|
||
{ $$ = finish_qualified_call_expr ($1, $3); }
|
||
| overqualified_id LEFT_RIGHT
|
||
{ $$ = finish_qualified_call_expr ($1, NULL_TREE); }
|
||
| object object_template_id %prec UNARY
|
||
{
|
||
$$ = build_x_component_ref ($$, $2, NULL_TREE, 1);
|
||
}
|
||
| object object_template_id '(' nonnull_exprlist ')'
|
||
{ $$ = finish_object_call_expr ($2, $1, $4); }
|
||
| object object_template_id LEFT_RIGHT
|
||
{ $$ = finish_object_call_expr ($2, $1, NULL_TREE); }
|
||
| object unqualified_id %prec UNARY
|
||
{ $$ = build_x_component_ref ($$, $2, NULL_TREE, 1); }
|
||
| object overqualified_id %prec UNARY
|
||
{ if (processing_template_decl)
|
||
$$ = build_min_nt (COMPONENT_REF, $1, $2);
|
||
else
|
||
$$ = build_object_ref ($$, OP0 ($2), OP1 ($2)); }
|
||
| object unqualified_id '(' nonnull_exprlist ')'
|
||
{ $$ = finish_object_call_expr ($2, $1, $4); }
|
||
| object unqualified_id LEFT_RIGHT
|
||
{ $$ = finish_object_call_expr ($2, $1, NULL_TREE); }
|
||
| object overqualified_id '(' nonnull_exprlist ')'
|
||
{ $$ = finish_qualified_object_call_expr ($2, $1, $4); }
|
||
| object overqualified_id LEFT_RIGHT
|
||
{ $$ = finish_qualified_object_call_expr ($2, $1, NULL_TREE); }
|
||
/* p->int::~int() is valid -- 12.4 */
|
||
| object '~' TYPESPEC LEFT_RIGHT
|
||
{ $$ = finish_pseudo_destructor_call_expr ($1, NULL_TREE, $3); }
|
||
| object TYPESPEC SCOPE '~' TYPESPEC LEFT_RIGHT
|
||
{ $$ = finish_pseudo_destructor_call_expr ($1, $2, $5); }
|
||
| object error
|
||
{
|
||
$$ = error_mark_node;
|
||
}
|
||
;
|
||
|
||
/* Not needed for now.
|
||
|
||
primary_no_id:
|
||
'(' expr ')'
|
||
{ $$ = $2; }
|
||
| '(' error ')'
|
||
{ $$ = error_mark_node; }
|
||
| '('
|
||
{ if (current_function_decl == 0)
|
||
{
|
||
error ("braced-group within expression allowed only inside a function");
|
||
YYERROR;
|
||
}
|
||
$<ttype>$ = expand_start_stmt_expr (); }
|
||
compstmt_or_stmtexpr ')'
|
||
{ if (pedantic)
|
||
pedwarn ("ISO C++ forbids braced-groups within expressions");
|
||
$$ = expand_end_stmt_expr ($<ttype>2); }
|
||
| primary_no_id '(' nonnull_exprlist ')'
|
||
{ $$ = build_x_function_call ($$, $3, current_class_ref); }
|
||
| primary_no_id LEFT_RIGHT
|
||
{ $$ = build_x_function_call ($$, NULL_TREE, current_class_ref); }
|
||
| primary_no_id '[' expr ']'
|
||
{ goto do_array; }
|
||
| primary_no_id PLUSPLUS
|
||
{ $$ = build_x_unary_op (POSTINCREMENT_EXPR, $$); }
|
||
| primary_no_id MINUSMINUS
|
||
{ $$ = build_x_unary_op (POSTDECREMENT_EXPR, $$); }
|
||
| SCOPE IDENTIFIER
|
||
{ goto do_scoped_id; }
|
||
| SCOPE operator_name
|
||
{ if (TREE_CODE ($2) == IDENTIFIER_NODE)
|
||
goto do_scoped_id;
|
||
goto do_scoped_operator;
|
||
}
|
||
;
|
||
*/
|
||
|
||
new:
|
||
NEW
|
||
{ $$ = 0; }
|
||
| global_scope NEW
|
||
{ got_scope = NULL_TREE; $$ = 1; }
|
||
;
|
||
|
||
delete:
|
||
DELETE
|
||
{ $$ = 0; }
|
||
| global_scope delete
|
||
{ got_scope = NULL_TREE; $$ = 1; }
|
||
;
|
||
|
||
boolean.literal:
|
||
CXX_TRUE
|
||
{ $$ = boolean_true_node; }
|
||
| CXX_FALSE
|
||
{ $$ = boolean_false_node; }
|
||
;
|
||
|
||
/* Produces a STRING_CST with perhaps more STRING_CSTs chained onto it. */
|
||
string:
|
||
STRING
|
||
| string STRING
|
||
{ $$ = chainon ($$, $2); }
|
||
;
|
||
|
||
nodecls:
|
||
/* empty */
|
||
{
|
||
if (DECL_CONSTRUCTOR_P (current_function_decl))
|
||
finish_mem_initializers (NULL_TREE);
|
||
}
|
||
;
|
||
|
||
object:
|
||
primary '.'
|
||
{ got_object = TREE_TYPE ($$); }
|
||
| primary POINTSAT
|
||
{
|
||
$$ = build_x_arrow ($$);
|
||
got_object = TREE_TYPE ($$);
|
||
}
|
||
;
|
||
|
||
decl:
|
||
typespec initdecls ';'
|
||
{
|
||
if ($1.t && IS_AGGR_TYPE_CODE (TREE_CODE ($1.t)))
|
||
note_got_semicolon ($1.t);
|
||
}
|
||
| typed_declspecs initdecls ';'
|
||
{
|
||
note_list_got_semicolon ($1.t);
|
||
}
|
||
| declmods notype_initdecls ';'
|
||
{}
|
||
| typed_declspecs ';'
|
||
{
|
||
shadow_tag ($1.t);
|
||
note_list_got_semicolon ($1.t);
|
||
}
|
||
| declmods ';'
|
||
{ warning ("empty declaration"); }
|
||
| extension decl
|
||
{ pedantic = $1; }
|
||
;
|
||
|
||
/* Any kind of declarator (thus, all declarators allowed
|
||
after an explicit typespec). */
|
||
|
||
declarator:
|
||
after_type_declarator %prec EMPTY
|
||
| notype_declarator %prec EMPTY
|
||
;
|
||
|
||
/* This is necessary to postpone reduction of `int()()()()'. */
|
||
fcast_or_absdcl:
|
||
LEFT_RIGHT %prec EMPTY
|
||
{ $$ = make_call_declarator (NULL_TREE, empty_parms (),
|
||
NULL_TREE, NULL_TREE); }
|
||
| fcast_or_absdcl LEFT_RIGHT %prec EMPTY
|
||
{ $$ = make_call_declarator ($$, empty_parms (), NULL_TREE,
|
||
NULL_TREE); }
|
||
;
|
||
|
||
/* ISO type-id (8.1) */
|
||
type_id:
|
||
typed_typespecs absdcl
|
||
{ $$.t = build_tree_list ($1.t, $2);
|
||
$$.new_type_flag = $1.new_type_flag; }
|
||
| nonempty_cv_qualifiers absdcl
|
||
{ $$.t = build_tree_list ($1.t, $2);
|
||
$$.new_type_flag = $1.new_type_flag; }
|
||
| typespec absdcl
|
||
{ $$.t = build_tree_list (build_tree_list (NULL_TREE, $1.t),
|
||
$2);
|
||
$$.new_type_flag = $1.new_type_flag; }
|
||
| typed_typespecs %prec EMPTY
|
||
{ $$.t = build_tree_list ($1.t, NULL_TREE);
|
||
$$.new_type_flag = $1.new_type_flag; }
|
||
| nonempty_cv_qualifiers %prec EMPTY
|
||
{ $$.t = build_tree_list ($1.t, NULL_TREE);
|
||
$$.new_type_flag = $1.new_type_flag; }
|
||
;
|
||
|
||
/* 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.
|
||
In the result, declspecs have a non-NULL TREE_VALUE, attributes do not. */
|
||
|
||
typed_declspecs:
|
||
typed_typespecs %prec EMPTY
|
||
{ $$.lookups = type_lookups; }
|
||
| typed_declspecs1
|
||
{ $$.lookups = type_lookups; }
|
||
;
|
||
|
||
typed_declspecs1:
|
||
declmods typespec
|
||
{ $$.t = tree_cons (NULL_TREE, $2.t, $1.t);
|
||
$$.new_type_flag = $2.new_type_flag; }
|
||
| typespec reserved_declspecs %prec HYPERUNARY
|
||
{ $$.t = tree_cons (NULL_TREE, $1.t, $2);
|
||
$$.new_type_flag = $1.new_type_flag; }
|
||
| typespec reserved_typespecquals reserved_declspecs
|
||
{ $$.t = tree_cons (NULL_TREE, $1.t, chainon ($2, $3));
|
||
$$.new_type_flag = $1.new_type_flag; }
|
||
| declmods typespec reserved_declspecs
|
||
{ $$.t = tree_cons (NULL_TREE, $2.t, chainon ($3, $1.t));
|
||
$$.new_type_flag = $2.new_type_flag; }
|
||
| declmods typespec reserved_typespecquals
|
||
{ $$.t = tree_cons (NULL_TREE, $2.t, chainon ($3, $1.t));
|
||
$$.new_type_flag = $2.new_type_flag; }
|
||
| declmods typespec reserved_typespecquals reserved_declspecs
|
||
{ $$.t = tree_cons (NULL_TREE, $2.t,
|
||
chainon ($3, chainon ($4, $1.t)));
|
||
$$.new_type_flag = $2.new_type_flag; }
|
||
;
|
||
|
||
reserved_declspecs:
|
||
SCSPEC
|
||
{ if (extra_warnings)
|
||
warning ("`%s' is not at beginning of declaration",
|
||
IDENTIFIER_POINTER ($$));
|
||
$$ = build_tree_list (NULL_TREE, $$); }
|
||
| reserved_declspecs typespecqual_reserved
|
||
{ $$ = tree_cons (NULL_TREE, $2.t, $$); }
|
||
| reserved_declspecs SCSPEC
|
||
{ if (extra_warnings)
|
||
warning ("`%s' is not at beginning of declaration",
|
||
IDENTIFIER_POINTER ($2));
|
||
$$ = tree_cons (NULL_TREE, $2, $$); }
|
||
;
|
||
|
||
/* List of just storage classes and type modifiers.
|
||
A declaration can start with just this, but then it cannot be used
|
||
to redeclare a typedef-name.
|
||
In the result, declspecs have a non-NULL TREE_VALUE, attributes do not. */
|
||
|
||
/* We use hash_tree_cons for lists of typeless declspecs so that they end
|
||
up on a persistent obstack. Otherwise, they could appear at the
|
||
beginning of something like
|
||
|
||
static const struct { int foo () { } } b;
|
||
|
||
and would be discarded after we finish compiling foo. We don't need to
|
||
worry once we see a type. */
|
||
|
||
declmods:
|
||
nonempty_cv_qualifiers %prec EMPTY
|
||
{ $$.lookups = NULL_TREE; TREE_STATIC ($$.t) = 1; }
|
||
| SCSPEC
|
||
{
|
||
$$.t = hash_tree_cons (NULL_TREE, $1, NULL_TREE);
|
||
$$.new_type_flag = 0; $$.lookups = NULL_TREE;
|
||
}
|
||
| declmods CV_QUALIFIER
|
||
{
|
||
$$.t = hash_tree_cons (NULL_TREE, $2, $1.t);
|
||
TREE_STATIC ($$.t) = 1;
|
||
}
|
||
| declmods SCSPEC
|
||
{
|
||
if (extra_warnings && TREE_STATIC ($$.t))
|
||
warning ("`%s' is not at beginning of declaration",
|
||
IDENTIFIER_POINTER ($2));
|
||
$$.t = hash_tree_cons (NULL_TREE, $2, $1.t);
|
||
TREE_STATIC ($$.t) = TREE_STATIC ($1.t);
|
||
}
|
||
| declmods attributes
|
||
{ $$.t = hash_tree_cons ($2, NULL_TREE, $1.t); }
|
||
;
|
||
|
||
/* Used instead of declspecs where storage classes are not allowed
|
||
(that is, for typenames and structure components).
|
||
|
||
C++ can takes storage classes for structure components.
|
||
Don't accept a typedef-name if anything but a modifier precedes it. */
|
||
|
||
typed_typespecs:
|
||
typespec %prec EMPTY
|
||
{ $$.t = build_tree_list (NULL_TREE, $1.t);
|
||
$$.new_type_flag = $1.new_type_flag; }
|
||
| nonempty_cv_qualifiers typespec
|
||
{ $$.t = tree_cons (NULL_TREE, $2.t, $1.t);
|
||
$$.new_type_flag = $2.new_type_flag; }
|
||
| typespec reserved_typespecquals
|
||
{ $$.t = tree_cons (NULL_TREE, $1.t, $2);
|
||
$$.new_type_flag = $1.new_type_flag; }
|
||
| nonempty_cv_qualifiers typespec reserved_typespecquals
|
||
{ $$.t = tree_cons (NULL_TREE, $2.t, chainon ($3, $1.t));
|
||
$$.new_type_flag = $2.new_type_flag; }
|
||
;
|
||
|
||
reserved_typespecquals:
|
||
typespecqual_reserved
|
||
{ $$ = build_tree_list (NULL_TREE, $1.t); }
|
||
| reserved_typespecquals typespecqual_reserved
|
||
{ $$ = tree_cons (NULL_TREE, $2.t, $1); }
|
||
| reserved_typespecquals attributes
|
||
{ $$ = tree_cons ($2, NULL_TREE, $1); }
|
||
| attributes %prec EMPTY
|
||
{ $$ = tree_cons ($1, NULL_TREE, NULL_TREE); }
|
||
;
|
||
|
||
sizeof:
|
||
SIZEOF { skip_evaluation++; }
|
||
;
|
||
|
||
alignof:
|
||
ALIGNOF { skip_evaluation++; }
|
||
;
|
||
|
||
typeof:
|
||
TYPEOF { skip_evaluation++; }
|
||
;
|
||
|
||
/* A typespec (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. */
|
||
|
||
typespec:
|
||
structsp
|
||
{ $$.lookups = NULL_TREE; }
|
||
| TYPESPEC %prec EMPTY
|
||
{ $$.t = $1; $$.new_type_flag = 0; $$.lookups = NULL_TREE; }
|
||
| complete_type_name
|
||
{ $$.t = $1; $$.new_type_flag = 0; $$.lookups = NULL_TREE; }
|
||
| typeof '(' expr ')'
|
||
{ $$.t = finish_typeof ($3);
|
||
$$.new_type_flag = 0; $$.lookups = NULL_TREE;
|
||
skip_evaluation--; }
|
||
| typeof '(' type_id ')'
|
||
{ $$.t = groktypename ($3.t);
|
||
$$.new_type_flag = 0; $$.lookups = NULL_TREE;
|
||
skip_evaluation--; }
|
||
| SIGOF '(' expr ')'
|
||
{ tree type = TREE_TYPE ($3);
|
||
|
||
$$.new_type_flag = 0; $$.lookups = NULL_TREE;
|
||
if (IS_AGGR_TYPE (type))
|
||
{
|
||
sorry ("sigof type specifier");
|
||
$$.t = type;
|
||
}
|
||
else
|
||
{
|
||
error ("`sigof' applied to non-aggregate expression");
|
||
$$.t = error_mark_node;
|
||
}
|
||
}
|
||
| SIGOF '(' type_id ')'
|
||
{ tree type = groktypename ($3.t);
|
||
|
||
$$.new_type_flag = 0; $$.lookups = NULL_TREE;
|
||
if (IS_AGGR_TYPE (type))
|
||
{
|
||
sorry ("sigof type specifier");
|
||
$$.t = type;
|
||
}
|
||
else
|
||
{
|
||
error("`sigof' applied to non-aggregate type");
|
||
$$.t = error_mark_node;
|
||
}
|
||
}
|
||
;
|
||
|
||
/* A typespec that is a reserved word, or a type qualifier. */
|
||
|
||
typespecqual_reserved:
|
||
TYPESPEC
|
||
{ $$.t = $1; $$.new_type_flag = 0; }
|
||
| CV_QUALIFIER
|
||
{ $$.t = $1; $$.new_type_flag = 0; }
|
||
| structsp
|
||
;
|
||
|
||
initdecls:
|
||
initdcl0
|
||
| initdecls ',' initdcl
|
||
{ check_multiple_declarators (); }
|
||
;
|
||
|
||
notype_initdecls:
|
||
notype_initdcl0
|
||
| notype_initdecls ',' initdcl
|
||
{ check_multiple_declarators (); }
|
||
;
|
||
|
||
nomods_initdecls:
|
||
nomods_initdcl0
|
||
| nomods_initdecls ',' initdcl
|
||
{ check_multiple_declarators (); }
|
||
;
|
||
|
||
maybeasm:
|
||
/* empty */
|
||
{ $$ = NULL_TREE; }
|
||
| asm_keyword '(' string ')'
|
||
{ if (TREE_CHAIN ($3)) $3 = combine_strings ($3); $$ = $3; }
|
||
;
|
||
|
||
initdcl:
|
||
declarator maybeasm maybe_attribute '='
|
||
{ $<ttype>$ = parse_decl ($<ttype>1, $3, 1); }
|
||
init
|
||
/* Note how the declaration of the variable is in effect while its init is parsed! */
|
||
{ parse_end_decl ($<ttype>5, $6, $2); }
|
||
| declarator maybeasm maybe_attribute
|
||
{
|
||
$<ttype>$ = parse_decl ($<ttype>1, $3, 0);
|
||
parse_end_decl ($<ttype>$, NULL_TREE, $2);
|
||
}
|
||
;
|
||
|
||
/* This rule assumes a certain configuration of the parser stack.
|
||
In particular, $0, the element directly before the beginning of
|
||
this rule on the stack, must be a maybeasm. $-1 must be a
|
||
declarator or notype_declarator. And $-2 must be some declmods
|
||
or declspecs. We can't move the maybeasm into this rule because
|
||
we need that reduce so we prefer fn.def1 when appropriate. */
|
||
initdcl0_innards:
|
||
maybe_attribute '='
|
||
{ $<ttype>$ = parse_decl0 ($<ttype>-1, $<ftype>-2.t,
|
||
$<ftype>-2.lookups, $1, 1); }
|
||
/* Note how the declaration of the variable is in effect
|
||
while its init is parsed! */
|
||
init
|
||
{ parse_end_decl ($<ttype>3, $4, $<ttype>0); }
|
||
| maybe_attribute
|
||
{ tree d = parse_decl0 ($<ttype>-1, $<ftype>-2.t,
|
||
$<ftype>-2.lookups, $1, 0);
|
||
parse_end_decl (d, NULL_TREE, $<ttype>0); }
|
||
;
|
||
|
||
initdcl0:
|
||
declarator maybeasm initdcl0_innards
|
||
{}
|
||
;
|
||
|
||
notype_initdcl0:
|
||
notype_declarator maybeasm initdcl0_innards
|
||
{}
|
||
;
|
||
|
||
nomods_initdcl0:
|
||
notype_declarator maybeasm
|
||
{ /* Set things up as initdcl0_innards expects. */
|
||
$<ttype>$ = $2;
|
||
$2 = $1;
|
||
$<ftype>1.t = NULL_TREE;
|
||
$<ftype>1.lookups = NULL_TREE; }
|
||
initdcl0_innards
|
||
{}
|
||
| constructor_declarator maybeasm maybe_attribute
|
||
{ tree d = parse_decl0 ($1, NULL_TREE, NULL_TREE, $3, 0);
|
||
parse_end_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 '(' nonnull_exprlist ')'
|
||
{ $$ = build_tree_list ($1, $3); }
|
||
;
|
||
|
||
/* This still leaves out most reserved keywords,
|
||
shouldn't we include them? */
|
||
|
||
any_word:
|
||
identifier
|
||
| SCSPEC
|
||
| TYPESPEC
|
||
| CV_QUALIFIER
|
||
;
|
||
|
||
/* A nonempty list of identifiers, including typenames. */
|
||
identifiers_or_typenames:
|
||
identifier
|
||
{ $$ = build_tree_list (NULL_TREE, $1); }
|
||
| identifiers_or_typenames ',' identifier
|
||
{ $$ = chainon ($1, build_tree_list (NULL_TREE, $3)); }
|
||
;
|
||
|
||
maybe_init:
|
||
/* empty */ %prec EMPTY
|
||
{ $$ = NULL_TREE; }
|
||
| '=' init
|
||
{ $$ = $2; }
|
||
;
|
||
|
||
/* If we are processing a template, we don't want to expand this
|
||
initializer yet. */
|
||
|
||
init:
|
||
expr_no_commas %prec '='
|
||
| '{' '}'
|
||
{ $$ = build_nt (CONSTRUCTOR, NULL_TREE, NULL_TREE);
|
||
TREE_HAS_CONSTRUCTOR ($$) = 1; }
|
||
| '{' initlist '}'
|
||
{ $$ = build_nt (CONSTRUCTOR, NULL_TREE, nreverse ($2));
|
||
TREE_HAS_CONSTRUCTOR ($$) = 1; }
|
||
| '{' initlist ',' '}'
|
||
{ $$ = build_nt (CONSTRUCTOR, NULL_TREE, nreverse ($2));
|
||
TREE_HAS_CONSTRUCTOR ($$) = 1; }
|
||
| error
|
||
{ $$ = NULL_TREE; }
|
||
;
|
||
|
||
/* This chain is built in reverse order,
|
||
and put in forward order where initlist is used. */
|
||
initlist:
|
||
init
|
||
{ $$ = build_tree_list (NULL_TREE, $$); }
|
||
| initlist ',' init
|
||
{ $$ = tree_cons (NULL_TREE, $3, $$); }
|
||
/* These are for labeled elements. */
|
||
| '[' expr_no_commas ']' init
|
||
{ $$ = build_tree_list ($2, $4); }
|
||
| identifier ':' init
|
||
{ $$ = build_tree_list ($$, $3); }
|
||
| initlist ',' identifier ':' init
|
||
{ $$ = tree_cons ($3, $5, $$); }
|
||
;
|
||
|
||
pending_inline:
|
||
PRE_PARSED_FUNCTION_DECL maybe_return_init function_body
|
||
{
|
||
expand_body (finish_function (2));
|
||
process_next_inline ($1);
|
||
}
|
||
| PRE_PARSED_FUNCTION_DECL maybe_return_init function_try_block
|
||
{
|
||
expand_body (finish_function (2));
|
||
process_next_inline ($1);
|
||
}
|
||
| PRE_PARSED_FUNCTION_DECL maybe_return_init error
|
||
{
|
||
finish_function (2);
|
||
process_next_inline ($1); }
|
||
;
|
||
|
||
pending_inlines:
|
||
/* empty */
|
||
| pending_inlines pending_inline eat_saved_input
|
||
;
|
||
|
||
/* A regurgitated default argument. The value of DEFARG_MARKER will be
|
||
the TREE_LIST node for the parameter in question. */
|
||
defarg_again:
|
||
DEFARG_MARKER expr_no_commas END_OF_SAVED_INPUT
|
||
{ replace_defarg ($1, $2); }
|
||
| DEFARG_MARKER error END_OF_SAVED_INPUT
|
||
{ replace_defarg ($1, error_mark_node); }
|
||
;
|
||
|
||
pending_defargs:
|
||
/* empty */ %prec EMPTY
|
||
| pending_defargs defarg_again
|
||
{ do_pending_defargs (); }
|
||
| pending_defargs error
|
||
{ do_pending_defargs (); }
|
||
;
|
||
|
||
structsp:
|
||
ENUM identifier '{'
|
||
{ $<ttype>$ = current_enum_type;
|
||
current_enum_type = start_enum ($2); }
|
||
enumlist_opt '}'
|
||
{ $$.t = current_enum_type;
|
||
finish_enum (current_enum_type);
|
||
$$.new_type_flag = 1;
|
||
current_enum_type = $<ttype>4;
|
||
check_for_missing_semicolon ($$.t); }
|
||
| ENUM '{'
|
||
{ $<ttype>$ = current_enum_type;
|
||
current_enum_type = start_enum (make_anon_name ()); }
|
||
enumlist_opt '}'
|
||
{ $$.t = current_enum_type;
|
||
finish_enum (current_enum_type);
|
||
$$.new_type_flag = 1;
|
||
current_enum_type = $<ttype>3;
|
||
check_for_missing_semicolon ($$.t); }
|
||
| ENUM identifier
|
||
{ $$.t = xref_tag (enum_type_node, $2, 1);
|
||
$$.new_type_flag = 0; }
|
||
| ENUM complex_type_name
|
||
{ $$.t = xref_tag (enum_type_node, $2, 1);
|
||
$$.new_type_flag = 0; }
|
||
| TYPENAME_KEYWORD typename_sub
|
||
{ $$.t = $2;
|
||
$$.new_type_flag = 0;
|
||
if (!processing_template_decl)
|
||
pedwarn ("using `typename' outside of template"); }
|
||
/* C++ extensions, merged with C to avoid shift/reduce conflicts */
|
||
| class_head_defn maybe_base_class_list '{'
|
||
{
|
||
if ($2 && $1.t != error_mark_node)
|
||
{
|
||
tree type = TREE_TYPE ($1.t);
|
||
|
||
if (TREE_CODE (type) == TYPENAME_TYPE)
|
||
/* In a definition of a member class template,
|
||
we will get here with an implicit typename,
|
||
a TYPENAME_TYPE with a type. */
|
||
type = TREE_TYPE (type);
|
||
maybe_process_partial_specialization (type);
|
||
xref_basetypes (current_aggr, $1.t, type, $2);
|
||
}
|
||
$1.t = begin_class_definition (TREE_TYPE ($1.t));
|
||
check_class_key (current_aggr, $1.t);
|
||
current_aggr = NULL_TREE; }
|
||
opt.component_decl_list '}' maybe_attribute
|
||
{
|
||
int semi;
|
||
tree t;
|
||
|
||
if (yychar == YYEMPTY)
|
||
yychar = YYLEX;
|
||
semi = yychar == ';';
|
||
|
||
t = finish_class_definition ($1.t, $7, semi, $1.new_type_flag);
|
||
$<ttype>$ = t;
|
||
|
||
/* restore current_aggr */
|
||
current_aggr = TREE_CODE (t) != RECORD_TYPE
|
||
? union_type_node
|
||
: CLASSTYPE_DECLARED_CLASS (t)
|
||
? class_type_node : record_type_node;
|
||
}
|
||
pending_defargs
|
||
{
|
||
done_pending_defargs ();
|
||
begin_inline_definitions ();
|
||
}
|
||
pending_inlines
|
||
{
|
||
finish_inline_definitions ();
|
||
$$.t = $<ttype>8;
|
||
$$.new_type_flag = 1;
|
||
}
|
||
| class_head_decl
|
||
{
|
||
$$.t = TREE_TYPE ($1.t);
|
||
$$.new_type_flag = $1.new_type_flag;
|
||
check_class_key (current_aggr, $$.t);
|
||
}
|
||
;
|
||
|
||
maybecomma:
|
||
/* empty */
|
||
| ','
|
||
;
|
||
|
||
maybecomma_warn:
|
||
/* empty */
|
||
| ','
|
||
{ if (pedantic && !in_system_header)
|
||
pedwarn ("comma at end of enumerator list"); }
|
||
;
|
||
|
||
aggr:
|
||
AGGR
|
||
| aggr SCSPEC
|
||
{ error ("storage class specifier `%s' not allowed after struct or class", IDENTIFIER_POINTER ($2)); }
|
||
| aggr TYPESPEC
|
||
{ error ("type specifier `%s' not allowed after struct or class", IDENTIFIER_POINTER ($2)); }
|
||
| aggr CV_QUALIFIER
|
||
{ error ("type qualifier `%s' not allowed after struct or class", IDENTIFIER_POINTER ($2)); }
|
||
| aggr AGGR
|
||
{ error ("no body nor ';' separates two class, struct or union declarations"); }
|
||
| aggr attributes
|
||
{ $$ = build_tree_list ($2, $1); }
|
||
;
|
||
|
||
class_head:
|
||
aggr identifier
|
||
{
|
||
current_aggr = $1;
|
||
$$ = build_tree_list (NULL_TREE, $2);
|
||
}
|
||
| aggr nested_name_specifier identifier
|
||
{
|
||
current_aggr = $1;
|
||
$$ = build_tree_list ($2, $3);
|
||
}
|
||
| aggr global_scope nested_name_specifier identifier
|
||
{
|
||
current_aggr = $1;
|
||
$$ = build_tree_list ($3, $4);
|
||
}
|
||
| aggr global_scope identifier
|
||
{
|
||
current_aggr = $1;
|
||
$$ = build_tree_list (global_namespace, $3);
|
||
}
|
||
;
|
||
|
||
class_head_apparent_template:
|
||
aggr apparent_template_type
|
||
{
|
||
current_aggr = $1;
|
||
$$ = $2;
|
||
}
|
||
| aggr nested_name_specifier apparent_template_type
|
||
{
|
||
current_aggr = $1;
|
||
$$ = $3;
|
||
}
|
||
| aggr global_scope nested_name_specifier apparent_template_type
|
||
{
|
||
current_aggr = $1;
|
||
$$ = $4;
|
||
}
|
||
;
|
||
|
||
class_head_decl:
|
||
class_head %prec EMPTY
|
||
{
|
||
$$.t = handle_class_head (current_aggr,
|
||
TREE_PURPOSE ($1), TREE_VALUE ($1),
|
||
0, &$$.new_type_flag);
|
||
}
|
||
| aggr identifier_defn %prec EMPTY
|
||
{
|
||
current_aggr = $1;
|
||
$$.t = TYPE_MAIN_DECL (xref_tag (current_aggr, $2, 0));
|
||
$$.new_type_flag = 1;
|
||
}
|
||
| class_head_apparent_template %prec EMPTY
|
||
{
|
||
$$.t = $1;
|
||
$$.new_type_flag = 0;
|
||
}
|
||
;
|
||
|
||
class_head_defn:
|
||
class_head '{'
|
||
{
|
||
yyungetc ('{', 1);
|
||
$$.t = handle_class_head (current_aggr,
|
||
TREE_PURPOSE ($1), TREE_VALUE ($1),
|
||
1, &$$.new_type_flag);
|
||
}
|
||
| class_head ':'
|
||
{
|
||
yyungetc (':', 1);
|
||
$$.t = handle_class_head (current_aggr,
|
||
TREE_PURPOSE ($1), TREE_VALUE ($1),
|
||
1, &$$.new_type_flag);
|
||
}
|
||
| class_head_apparent_template '{'
|
||
{
|
||
yyungetc ('{', 1);
|
||
$$.t = $1;
|
||
$$.new_type_flag = 0;
|
||
if (TREE_CODE (TREE_TYPE ($1)) == RECORD_TYPE)
|
||
/* We might be specializing a template with a different
|
||
class-key. */
|
||
CLASSTYPE_DECLARED_CLASS (TREE_TYPE ($1))
|
||
= (current_aggr == class_type_node);
|
||
}
|
||
| class_head_apparent_template ':'
|
||
{
|
||
yyungetc (':', 1);
|
||
$$.t = $1;
|
||
$$.new_type_flag = 0;
|
||
if (TREE_CODE (TREE_TYPE ($1)) == RECORD_TYPE)
|
||
/* We might be specializing a template with a different
|
||
class-key. */
|
||
CLASSTYPE_DECLARED_CLASS (TREE_TYPE ($1))
|
||
= (current_aggr == class_type_node);
|
||
}
|
||
| aggr identifier_defn '{'
|
||
{
|
||
yyungetc ('{', 1);
|
||
current_aggr = $1;
|
||
$$.t = handle_class_head (current_aggr,
|
||
NULL_TREE, $2,
|
||
1, &$$.new_type_flag);
|
||
}
|
||
| aggr identifier_defn ':'
|
||
{
|
||
yyungetc (':', 1);
|
||
current_aggr = $1;
|
||
$$.t = handle_class_head (current_aggr,
|
||
NULL_TREE, $2,
|
||
1, &$$.new_type_flag);
|
||
}
|
||
| aggr '{'
|
||
{
|
||
current_aggr = $1;
|
||
$$.t = TYPE_MAIN_DECL (xref_tag ($1, make_anon_name (), 0));
|
||
$$.new_type_flag = 0;
|
||
yyungetc ('{', 1);
|
||
}
|
||
;
|
||
|
||
maybe_base_class_list:
|
||
/* empty */
|
||
{ $$ = NULL_TREE; }
|
||
| ':' see_typename
|
||
{ error ("no bases given following `:'");
|
||
$$ = NULL_TREE; }
|
||
| ':' see_typename base_class_list
|
||
{ $$ = $3; }
|
||
;
|
||
|
||
base_class_list:
|
||
base_class
|
||
| base_class_list ',' see_typename base_class
|
||
{ $$ = chainon ($$, $4); }
|
||
;
|
||
|
||
base_class:
|
||
base_class.1
|
||
{ $$ = finish_base_specifier (access_default_node, $1); }
|
||
| base_class_access_list see_typename base_class.1
|
||
{ $$ = finish_base_specifier ($1, $3); }
|
||
;
|
||
|
||
base_class.1:
|
||
typename_sub
|
||
{ if (!TYPE_P ($$))
|
||
$$ = error_mark_node; }
|
||
| nonnested_type
|
||
{ $$ = TREE_TYPE ($$); }
|
||
;
|
||
|
||
base_class_access_list:
|
||
VISSPEC see_typename
|
||
| SCSPEC see_typename
|
||
{ if ($1 != ridpointers[(int)RID_VIRTUAL])
|
||
error ("`%D' access", $1);
|
||
$$ = access_default_virtual_node; }
|
||
| base_class_access_list VISSPEC see_typename
|
||
{
|
||
if ($1 != access_default_virtual_node)
|
||
error ("multiple access specifiers");
|
||
else if ($2 == access_public_node)
|
||
$$ = access_public_virtual_node;
|
||
else if ($2 == access_protected_node)
|
||
$$ = access_protected_virtual_node;
|
||
else /* $2 == access_private_node */
|
||
$$ = access_private_virtual_node;
|
||
}
|
||
| base_class_access_list SCSPEC see_typename
|
||
{ if ($2 != ridpointers[(int)RID_VIRTUAL])
|
||
error ("`%D' access", $2);
|
||
else if ($$ == access_public_node)
|
||
$$ = access_public_virtual_node;
|
||
else if ($$ == access_protected_node)
|
||
$$ = access_protected_virtual_node;
|
||
else if ($$ == access_private_node)
|
||
$$ = access_private_virtual_node;
|
||
else
|
||
error ("multiple `virtual' specifiers");
|
||
}
|
||
;
|
||
|
||
opt.component_decl_list:
|
||
| component_decl_list
|
||
| opt.component_decl_list access_specifier component_decl_list
|
||
| opt.component_decl_list access_specifier
|
||
;
|
||
|
||
access_specifier:
|
||
VISSPEC ':'
|
||
{
|
||
current_access_specifier = $1;
|
||
}
|
||
;
|
||
|
||
/* Note: we no longer warn about the semicolon after a component_decl_list.
|
||
ARM $9.2 says that the semicolon is optional, and therefore allowed. */
|
||
component_decl_list:
|
||
component_decl
|
||
{
|
||
finish_member_declaration ($1);
|
||
current_aggr = NULL_TREE;
|
||
reset_type_access_control ();
|
||
}
|
||
| component_decl_list component_decl
|
||
{
|
||
finish_member_declaration ($2);
|
||
current_aggr = NULL_TREE;
|
||
reset_type_access_control ();
|
||
}
|
||
;
|
||
|
||
component_decl:
|
||
component_decl_1 ';'
|
||
| component_decl_1 '}'
|
||
{ error ("missing ';' before right brace");
|
||
yyungetc ('}', 0); }
|
||
/* C++: handle constructors, destructors and inline functions */
|
||
/* note that INLINE is like a TYPESPEC */
|
||
| fn.def2 ':' /* base_init compstmt */
|
||
{ $$ = finish_method ($$); }
|
||
| fn.def2 TRY /* base_init compstmt */
|
||
{ $$ = finish_method ($$); }
|
||
| fn.def2 RETURN_KEYWORD /* base_init compstmt */
|
||
{ $$ = finish_method ($$); }
|
||
| fn.def2 '{' /* nodecls compstmt */
|
||
{ $$ = finish_method ($$); }
|
||
| ';'
|
||
{ $$ = NULL_TREE; }
|
||
| extension component_decl
|
||
{ $$ = $2;
|
||
pedantic = $1; }
|
||
| template_header component_decl
|
||
{
|
||
if ($2)
|
||
$$ = finish_member_template_decl ($2);
|
||
else
|
||
/* The component was already processed. */
|
||
$$ = NULL_TREE;
|
||
|
||
finish_template_decl ($1);
|
||
}
|
||
| template_header typed_declspecs ';'
|
||
{
|
||
$$ = finish_member_class_template ($2.t);
|
||
finish_template_decl ($1);
|
||
}
|
||
| bad_decl
|
||
{ $$ = NULL_TREE; }
|
||
;
|
||
|
||
component_decl_1:
|
||
/* Do not add a "typed_declspecs declarator" rule here for
|
||
speed; we need to call grok_x_components for enums, so the
|
||
speedup would be insignificant. */
|
||
typed_declspecs components
|
||
{
|
||
/* Most of the productions for component_decl only
|
||
allow the creation of one new member, so we call
|
||
finish_member_declaration in component_decl_list.
|
||
For this rule and the next, however, there can be
|
||
more than one member, e.g.:
|
||
|
||
int i, j;
|
||
|
||
and we need the first member to be fully
|
||
registered before the second is processed.
|
||
Therefore, the rules for components take care of
|
||
this processing. To avoid registering the
|
||
components more than once, we send NULL_TREE up
|
||
here; that lets finish_member_declaration know
|
||
that there is nothing to do. */
|
||
if (!$2)
|
||
grok_x_components ($1.t);
|
||
$$ = NULL_TREE;
|
||
}
|
||
| declmods notype_components
|
||
{
|
||
if (!$2)
|
||
grok_x_components ($1.t);
|
||
$$ = NULL_TREE;
|
||
}
|
||
| notype_declarator maybeasm maybe_attribute maybe_init
|
||
{ $$ = grokfield ($$, NULL_TREE, $4, $2, $3); }
|
||
| constructor_declarator maybeasm maybe_attribute maybe_init
|
||
{ $$ = grokfield ($$, NULL_TREE, $4, $2, $3); }
|
||
| ':' expr_no_commas
|
||
{ $$ = grokbitfield (NULL_TREE, NULL_TREE, $2); }
|
||
| error
|
||
{ $$ = NULL_TREE; }
|
||
|
||
/* These rules introduce a reduce/reduce conflict; in
|
||
typedef int foo, bar;
|
||
class A {
|
||
foo (bar);
|
||
};
|
||
should "A::foo" be declared as a function or "A::bar" as a data
|
||
member? In other words, is "bar" an after_type_declarator or a
|
||
parmlist? */
|
||
| declmods component_constructor_declarator maybeasm maybe_attribute maybe_init
|
||
{ tree specs, attrs;
|
||
split_specs_attrs ($1.t, &specs, &attrs);
|
||
$$ = grokfield ($2, specs, $5, $3,
|
||
chainon ($4, attrs)); }
|
||
| component_constructor_declarator maybeasm maybe_attribute maybe_init
|
||
{ $$ = grokfield ($$, NULL_TREE, $4, $2, $3); }
|
||
| using_decl
|
||
{ $$ = do_class_using_decl ($1); }
|
||
;
|
||
|
||
/* The case of exactly one component is handled directly by component_decl. */
|
||
/* ??? Huh? ^^^ */
|
||
components:
|
||
/* empty: possibly anonymous */
|
||
{ $$ = 0; }
|
||
| component_declarator0
|
||
{
|
||
if (PROCESSING_REAL_TEMPLATE_DECL_P ())
|
||
$1 = finish_member_template_decl ($1);
|
||
finish_member_declaration ($1);
|
||
$$ = 1;
|
||
}
|
||
| components ',' component_declarator
|
||
{
|
||
check_multiple_declarators ();
|
||
if (PROCESSING_REAL_TEMPLATE_DECL_P ())
|
||
$3 = finish_member_template_decl ($3);
|
||
finish_member_declaration ($3);
|
||
$$ = 2;
|
||
}
|
||
;
|
||
|
||
notype_components:
|
||
/* empty: possibly anonymous */
|
||
{ $$ = 0; }
|
||
| notype_component_declarator0
|
||
{
|
||
if (PROCESSING_REAL_TEMPLATE_DECL_P ())
|
||
$1 = finish_member_template_decl ($1);
|
||
finish_member_declaration ($1);
|
||
$$ = 1;
|
||
}
|
||
| notype_components ',' notype_component_declarator
|
||
{
|
||
check_multiple_declarators ();
|
||
if (PROCESSING_REAL_TEMPLATE_DECL_P ())
|
||
$3 = finish_member_template_decl ($3);
|
||
finish_member_declaration ($3);
|
||
$$ = 2;
|
||
}
|
||
;
|
||
|
||
component_declarator0:
|
||
after_type_component_declarator0
|
||
| notype_component_declarator0
|
||
;
|
||
|
||
component_declarator:
|
||
after_type_component_declarator
|
||
| notype_component_declarator
|
||
;
|
||
|
||
after_type_component_declarator0:
|
||
after_type_declarator maybeasm maybe_attribute maybe_init
|
||
{ $$ = parse_field0 ($1, $<ftype>0.t, $<ftype>0.lookups,
|
||
$3, $2, $4); }
|
||
| tTYPENAME ':' expr_no_commas maybe_attribute
|
||
{ $$ = parse_bitfield0 ($1, $<ftype>0.t, $<ftype>0.lookups,
|
||
$4, $3); }
|
||
;
|
||
|
||
notype_component_declarator0:
|
||
notype_declarator maybeasm maybe_attribute maybe_init
|
||
{ $$ = parse_field0 ($1, $<ftype>0.t, $<ftype>0.lookups,
|
||
$3, $2, $4); }
|
||
| constructor_declarator maybeasm maybe_attribute maybe_init
|
||
{ $$ = parse_field0 ($1, $<ftype>0.t, $<ftype>0.lookups,
|
||
$3, $2, $4); }
|
||
| IDENTIFIER ':' expr_no_commas maybe_attribute
|
||
{ $$ = parse_bitfield0 ($1, $<ftype>0.t, $<ftype>0.lookups,
|
||
$4, $3); }
|
||
| ':' expr_no_commas maybe_attribute
|
||
{ $$ = parse_bitfield0 (NULL_TREE, $<ftype>0.t,
|
||
$<ftype>0.lookups, $3, $2); }
|
||
;
|
||
|
||
after_type_component_declarator:
|
||
after_type_declarator maybeasm maybe_attribute maybe_init
|
||
{ $$ = parse_field ($1, $3, $2, $4); }
|
||
| tTYPENAME ':' expr_no_commas maybe_attribute
|
||
{ $$ = parse_bitfield ($1, $4, $3); }
|
||
;
|
||
|
||
notype_component_declarator:
|
||
notype_declarator maybeasm maybe_attribute maybe_init
|
||
{ $$ = parse_field ($1, $3, $2, $4); }
|
||
| IDENTIFIER ':' expr_no_commas maybe_attribute
|
||
{ $$ = parse_bitfield ($1, $4, $3); }
|
||
| ':' expr_no_commas maybe_attribute
|
||
{ $$ = parse_bitfield (NULL_TREE, $3, $2); }
|
||
;
|
||
|
||
enumlist_opt:
|
||
enumlist maybecomma_warn
|
||
| maybecomma_warn
|
||
;
|
||
|
||
/* We chain the enumerators in reverse order.
|
||
Because of the way enums are built, the order is
|
||
insignificant. Take advantage of this fact. */
|
||
|
||
enumlist:
|
||
enumerator
|
||
| enumlist ',' enumerator
|
||
;
|
||
|
||
enumerator:
|
||
identifier
|
||
{ build_enumerator ($1, NULL_TREE, current_enum_type); }
|
||
| identifier '=' expr_no_commas
|
||
{ build_enumerator ($1, $3, current_enum_type); }
|
||
;
|
||
|
||
/* ISO new-type-id (5.3.4) */
|
||
new_type_id:
|
||
type_specifier_seq new_declarator
|
||
{ $$.t = build_tree_list ($1.t, $2);
|
||
$$.new_type_flag = $1.new_type_flag; }
|
||
| type_specifier_seq %prec EMPTY
|
||
{ $$.t = build_tree_list ($1.t, NULL_TREE);
|
||
$$.new_type_flag = $1.new_type_flag; }
|
||
/* GNU extension to allow arrays of arbitrary types with
|
||
non-constant dimension. */
|
||
| '(' type_id ')' '[' expr ']'
|
||
{
|
||
if (pedantic)
|
||
pedwarn ("ISO C++ forbids array dimensions with parenthesized type in new");
|
||
$$.t = build_nt (ARRAY_REF, TREE_VALUE ($2.t), $5);
|
||
$$.t = build_tree_list (TREE_PURPOSE ($2.t), $$.t);
|
||
$$.new_type_flag = $2.new_type_flag;
|
||
}
|
||
;
|
||
|
||
cv_qualifiers:
|
||
/* empty */ %prec EMPTY
|
||
{ $$ = NULL_TREE; }
|
||
| cv_qualifiers CV_QUALIFIER
|
||
{ $$ = tree_cons (NULL_TREE, $2, $$); }
|
||
;
|
||
|
||
nonempty_cv_qualifiers:
|
||
CV_QUALIFIER
|
||
{ $$.t = hash_tree_cons (NULL_TREE, $1, NULL_TREE);
|
||
$$.new_type_flag = 0; }
|
||
| nonempty_cv_qualifiers CV_QUALIFIER
|
||
{ $$.t = hash_tree_cons (NULL_TREE, $2, $1.t);
|
||
$$.new_type_flag = $1.new_type_flag; }
|
||
| attributes %prec EMPTY
|
||
{ $$.t = hash_tree_cons ($1, NULL_TREE, NULL_TREE);
|
||
$$.new_type_flag = 0; }
|
||
| nonempty_cv_qualifiers attributes %prec EMPTY
|
||
{ $$.t = hash_tree_cons ($2, NULL_TREE, $1.t);
|
||
$$.new_type_flag = $1.new_type_flag; }
|
||
;
|
||
|
||
/* These rules must follow the rules for function declarations
|
||
and component declarations. That way, longer rules are preferred. */
|
||
|
||
/* An expression which will not live on the momentary obstack. */
|
||
maybe_parmlist:
|
||
'(' nonnull_exprlist ')'
|
||
{ $$ = $2; }
|
||
| '(' parmlist ')'
|
||
{ $$ = $2; }
|
||
| LEFT_RIGHT
|
||
{ $$ = empty_parms (); }
|
||
| '(' error ')'
|
||
{ $$ = NULL_TREE; }
|
||
;
|
||
|
||
/* A declarator that is allowed only after an explicit typespec. */
|
||
|
||
after_type_declarator_intern:
|
||
after_type_declarator
|
||
| attributes after_type_declarator
|
||
{
|
||
/* Provide support for '(' attributes '*' declarator ')'
|
||
etc */
|
||
$$ = tree_cons ($1, $2, NULL_TREE);
|
||
}
|
||
;
|
||
|
||
/* may all be followed by prec '.' */
|
||
after_type_declarator:
|
||
'*' nonempty_cv_qualifiers after_type_declarator_intern %prec UNARY
|
||
{ $$ = make_pointer_declarator ($2.t, $3); }
|
||
| '&' nonempty_cv_qualifiers after_type_declarator_intern %prec UNARY
|
||
{ $$ = make_reference_declarator ($2.t, $3); }
|
||
| '*' after_type_declarator_intern %prec UNARY
|
||
{ $$ = make_pointer_declarator (NULL_TREE, $2); }
|
||
| '&' after_type_declarator_intern %prec UNARY
|
||
{ $$ = make_reference_declarator (NULL_TREE, $2); }
|
||
| ptr_to_mem cv_qualifiers after_type_declarator_intern
|
||
{ tree arg = make_pointer_declarator ($2, $3);
|
||
$$ = build_nt (SCOPE_REF, $1, arg);
|
||
}
|
||
| direct_after_type_declarator
|
||
;
|
||
|
||
direct_after_type_declarator:
|
||
direct_after_type_declarator maybe_parmlist cv_qualifiers exception_specification_opt %prec '.'
|
||
{ $$ = make_call_declarator ($$, $2, $3, $4); }
|
||
| direct_after_type_declarator '[' expr ']'
|
||
{ $$ = build_nt (ARRAY_REF, $$, $3); }
|
||
| direct_after_type_declarator '[' ']'
|
||
{ $$ = build_nt (ARRAY_REF, $$, NULL_TREE); }
|
||
| '(' after_type_declarator_intern ')'
|
||
{ $$ = $2; }
|
||
| nested_name_specifier type_name %prec EMPTY
|
||
{ push_nested_class ($1, 3);
|
||
$$ = build_nt (SCOPE_REF, $$, $2);
|
||
TREE_COMPLEXITY ($$) = current_class_depth; }
|
||
| type_name %prec EMPTY
|
||
;
|
||
|
||
nonnested_type:
|
||
type_name %prec EMPTY
|
||
{
|
||
if (TREE_CODE ($1) == IDENTIFIER_NODE)
|
||
{
|
||
$$ = lookup_name ($1, 1);
|
||
maybe_note_name_used_in_class ($1, $$);
|
||
}
|
||
else
|
||
$$ = $1;
|
||
}
|
||
| global_scope type_name
|
||
{
|
||
if (TREE_CODE ($2) == IDENTIFIER_NODE)
|
||
$$ = IDENTIFIER_GLOBAL_VALUE ($2);
|
||
else
|
||
$$ = $2;
|
||
got_scope = NULL_TREE;
|
||
}
|
||
;
|
||
|
||
complete_type_name:
|
||
nonnested_type
|
||
| nested_type
|
||
| global_scope nested_type
|
||
{ $$ = $2; }
|
||
;
|
||
|
||
nested_type:
|
||
nested_name_specifier type_name %prec EMPTY
|
||
{ $$ = get_type_decl ($2); }
|
||
;
|
||
|
||
/* A declarator allowed whether or not there has been
|
||
an explicit typespec. These cannot redeclare a typedef-name. */
|
||
|
||
notype_declarator_intern:
|
||
notype_declarator
|
||
| attributes notype_declarator
|
||
{
|
||
/* Provide support for '(' attributes '*' declarator ')'
|
||
etc */
|
||
$$ = tree_cons ($1, $2, NULL_TREE);
|
||
}
|
||
;
|
||
|
||
notype_declarator:
|
||
'*' nonempty_cv_qualifiers notype_declarator_intern %prec UNARY
|
||
{ $$ = make_pointer_declarator ($2.t, $3); }
|
||
| '&' nonempty_cv_qualifiers notype_declarator_intern %prec UNARY
|
||
{ $$ = make_reference_declarator ($2.t, $3); }
|
||
| '*' notype_declarator_intern %prec UNARY
|
||
{ $$ = make_pointer_declarator (NULL_TREE, $2); }
|
||
| '&' notype_declarator_intern %prec UNARY
|
||
{ $$ = make_reference_declarator (NULL_TREE, $2); }
|
||
| ptr_to_mem cv_qualifiers notype_declarator_intern
|
||
{ tree arg = make_pointer_declarator ($2, $3);
|
||
$$ = build_nt (SCOPE_REF, $1, arg);
|
||
}
|
||
| direct_notype_declarator
|
||
;
|
||
|
||
complex_notype_declarator:
|
||
'*' nonempty_cv_qualifiers notype_declarator_intern %prec UNARY
|
||
{ $$ = make_pointer_declarator ($2.t, $3); }
|
||
| '&' nonempty_cv_qualifiers notype_declarator_intern %prec UNARY
|
||
{ $$ = make_reference_declarator ($2.t, $3); }
|
||
| '*' complex_notype_declarator %prec UNARY
|
||
{ $$ = make_pointer_declarator (NULL_TREE, $2); }
|
||
| '&' complex_notype_declarator %prec UNARY
|
||
{ $$ = make_reference_declarator (NULL_TREE, $2); }
|
||
| ptr_to_mem cv_qualifiers notype_declarator_intern
|
||
{ tree arg = make_pointer_declarator ($2, $3);
|
||
$$ = build_nt (SCOPE_REF, $1, arg);
|
||
}
|
||
| complex_direct_notype_declarator
|
||
;
|
||
|
||
complex_direct_notype_declarator:
|
||
direct_notype_declarator maybe_parmlist cv_qualifiers exception_specification_opt %prec '.'
|
||
{ $$ = make_call_declarator ($$, $2, $3, $4); }
|
||
| '(' complex_notype_declarator ')'
|
||
{ $$ = $2; }
|
||
| direct_notype_declarator '[' expr ']'
|
||
{ $$ = build_nt (ARRAY_REF, $$, $3); }
|
||
| direct_notype_declarator '[' ']'
|
||
{ $$ = build_nt (ARRAY_REF, $$, NULL_TREE); }
|
||
| notype_qualified_id
|
||
{ enter_scope_of ($1); }
|
||
| global_scope notype_qualified_id
|
||
{ enter_scope_of ($2); $$ = $2;}
|
||
| global_scope notype_unqualified_id
|
||
{ $$ = build_nt (SCOPE_REF, global_namespace, $2);
|
||
enter_scope_of ($$);
|
||
}
|
||
| nested_name_specifier notype_template_declarator
|
||
{ got_scope = NULL_TREE;
|
||
$$ = build_nt (SCOPE_REF, $1, $2);
|
||
enter_scope_of ($$);
|
||
}
|
||
;
|
||
|
||
qualified_id:
|
||
nested_name_specifier unqualified_id
|
||
{ got_scope = NULL_TREE;
|
||
$$ = build_nt (SCOPE_REF, $$, $2); }
|
||
| nested_name_specifier object_template_id
|
||
{ got_scope = NULL_TREE;
|
||
$$ = build_nt (SCOPE_REF, $1, $2); }
|
||
;
|
||
|
||
notype_qualified_id:
|
||
nested_name_specifier notype_unqualified_id
|
||
{ got_scope = NULL_TREE;
|
||
$$ = build_nt (SCOPE_REF, $$, $2); }
|
||
| nested_name_specifier object_template_id
|
||
{ got_scope = NULL_TREE;
|
||
$$ = build_nt (SCOPE_REF, $1, $2); }
|
||
;
|
||
|
||
overqualified_id:
|
||
notype_qualified_id
|
||
| global_scope notype_qualified_id
|
||
{ $$ = $2; }
|
||
;
|
||
|
||
functional_cast:
|
||
typespec '(' nonnull_exprlist ')'
|
||
{ $$ = build_functional_cast ($1.t, $3); }
|
||
| typespec '(' expr_or_declarator_intern ')'
|
||
{ $$ = reparse_decl_as_expr ($1.t, $3); }
|
||
| typespec fcast_or_absdcl %prec EMPTY
|
||
{ $$ = reparse_absdcl_as_expr ($1.t, $2); }
|
||
;
|
||
|
||
type_name:
|
||
tTYPENAME
|
||
| SELFNAME
|
||
| template_type %prec EMPTY
|
||
;
|
||
|
||
nested_name_specifier:
|
||
nested_name_specifier_1
|
||
| nested_name_specifier nested_name_specifier_1
|
||
{ $$ = $2; }
|
||
| nested_name_specifier TEMPLATE explicit_template_type SCOPE
|
||
{ got_scope = $$
|
||
= make_typename_type ($1, $3, tf_error); }
|
||
/* Error handling per Core 125. */
|
||
| nested_name_specifier IDENTIFIER SCOPE
|
||
{ got_scope = $$
|
||
= make_typename_type ($1, $2, tf_error); }
|
||
| nested_name_specifier PTYPENAME SCOPE
|
||
{ got_scope = $$
|
||
= make_typename_type ($1, $2, tf_error); }
|
||
;
|
||
|
||
/* Why the @#$%^& do type_name and notype_identifier need to be expanded
|
||
inline here?!? (jason) */
|
||
nested_name_specifier_1:
|
||
tTYPENAME SCOPE
|
||
{
|
||
if (TREE_CODE ($1) == IDENTIFIER_NODE)
|
||
{
|
||
$$ = lastiddecl;
|
||
maybe_note_name_used_in_class ($1, $$);
|
||
}
|
||
got_scope = $$ =
|
||
complete_type (TYPE_MAIN_VARIANT (TREE_TYPE ($$)));
|
||
}
|
||
| SELFNAME SCOPE
|
||
{
|
||
if (TREE_CODE ($1) == IDENTIFIER_NODE)
|
||
$$ = lastiddecl;
|
||
got_scope = $$ = TREE_TYPE ($$);
|
||
}
|
||
| NSNAME SCOPE
|
||
{
|
||
if (TREE_CODE ($$) == IDENTIFIER_NODE)
|
||
$$ = lastiddecl;
|
||
got_scope = $$;
|
||
}
|
||
| template_type SCOPE
|
||
{ got_scope = $$ = complete_type (TREE_TYPE ($1)); }
|
||
;
|
||
|
||
typename_sub:
|
||
typename_sub0
|
||
| global_scope typename_sub0
|
||
{ $$ = $2; }
|
||
;
|
||
|
||
typename_sub0:
|
||
typename_sub1 identifier %prec EMPTY
|
||
{
|
||
if (TYPE_P ($1))
|
||
$$ = make_typename_type ($1, $2, tf_error);
|
||
else if (TREE_CODE ($2) == IDENTIFIER_NODE)
|
||
error ("`%T' is not a class or namespace", $2);
|
||
else
|
||
{
|
||
$$ = $2;
|
||
if (TREE_CODE ($$) == TYPE_DECL)
|
||
$$ = TREE_TYPE ($$);
|
||
}
|
||
}
|
||
| typename_sub1 template_type %prec EMPTY
|
||
{ $$ = TREE_TYPE ($2); }
|
||
| typename_sub1 explicit_template_type %prec EMPTY
|
||
{ $$ = make_typename_type ($1, $2, tf_error); }
|
||
| typename_sub1 TEMPLATE explicit_template_type %prec EMPTY
|
||
{ $$ = make_typename_type ($1, $3, tf_error); }
|
||
;
|
||
|
||
typename_sub1:
|
||
typename_sub2
|
||
{
|
||
if (TREE_CODE ($1) == IDENTIFIER_NODE)
|
||
error ("`%T' is not a class or namespace", $1);
|
||
else if (TREE_CODE ($1) == TYPE_DECL)
|
||
$$ = TREE_TYPE ($1);
|
||
}
|
||
| typename_sub1 typename_sub2
|
||
{
|
||
if (TYPE_P ($1))
|
||
$$ = make_typename_type ($1, $2, tf_error);
|
||
else if (TREE_CODE ($2) == IDENTIFIER_NODE)
|
||
error ("`%T' is not a class or namespace", $2);
|
||
else
|
||
{
|
||
$$ = $2;
|
||
if (TREE_CODE ($$) == TYPE_DECL)
|
||
$$ = TREE_TYPE ($$);
|
||
}
|
||
}
|
||
| typename_sub1 explicit_template_type SCOPE
|
||
{ got_scope = $$
|
||
= make_typename_type ($1, $2, tf_error); }
|
||
| typename_sub1 TEMPLATE explicit_template_type SCOPE
|
||
{ got_scope = $$
|
||
= make_typename_type ($1, $3, tf_error); }
|
||
;
|
||
|
||
/* This needs to return a TYPE_DECL for simple names so that we don't
|
||
forget what name was used. */
|
||
typename_sub2:
|
||
tTYPENAME SCOPE
|
||
{
|
||
if (TREE_CODE ($1) != TYPE_DECL)
|
||
$$ = lastiddecl;
|
||
|
||
/* Retrieve the type for the identifier, which might involve
|
||
some computation. */
|
||
got_scope = complete_type (TREE_TYPE ($$));
|
||
|
||
if ($$ == error_mark_node)
|
||
error ("`%T' is not a class or namespace", $1);
|
||
}
|
||
| SELFNAME SCOPE
|
||
{
|
||
if (TREE_CODE ($1) != TYPE_DECL)
|
||
$$ = lastiddecl;
|
||
got_scope = complete_type (TREE_TYPE ($$));
|
||
}
|
||
| template_type SCOPE
|
||
{ got_scope = $$ = complete_type (TREE_TYPE ($$)); }
|
||
| PTYPENAME SCOPE
|
||
| IDENTIFIER SCOPE
|
||
| NSNAME SCOPE
|
||
{
|
||
if (TREE_CODE ($$) == IDENTIFIER_NODE)
|
||
$$ = lastiddecl;
|
||
got_scope = $$;
|
||
}
|
||
;
|
||
|
||
explicit_template_type:
|
||
identifier '<' template_arg_list_opt template_close_bracket
|
||
{ $$ = build_min_nt (TEMPLATE_ID_EXPR, $1, $3); }
|
||
;
|
||
|
||
complex_type_name:
|
||
global_scope type_name
|
||
{
|
||
if (TREE_CODE ($2) == IDENTIFIER_NODE)
|
||
$$ = IDENTIFIER_GLOBAL_VALUE ($2);
|
||
else
|
||
$$ = $2;
|
||
got_scope = NULL_TREE;
|
||
}
|
||
| nested_type
|
||
| global_scope nested_type
|
||
{ $$ = $2; }
|
||
;
|
||
|
||
ptr_to_mem:
|
||
nested_name_specifier '*'
|
||
{ got_scope = NULL_TREE; }
|
||
| global_scope nested_name_specifier '*'
|
||
{ $$ = $2; got_scope = NULL_TREE; }
|
||
;
|
||
|
||
/* All uses of explicit global scope must go through this nonterminal so
|
||
that got_scope will be set before yylex is called to get the next token. */
|
||
global_scope:
|
||
SCOPE
|
||
{ got_scope = void_type_node; }
|
||
;
|
||
|
||
/* ISO new-declarator (5.3.4) */
|
||
new_declarator:
|
||
'*' cv_qualifiers new_declarator
|
||
{ $$ = make_pointer_declarator ($2, $3); }
|
||
| '*' cv_qualifiers %prec EMPTY
|
||
{ $$ = make_pointer_declarator ($2, NULL_TREE); }
|
||
| '&' cv_qualifiers new_declarator %prec EMPTY
|
||
{ $$ = make_reference_declarator ($2, $3); }
|
||
| '&' cv_qualifiers %prec EMPTY
|
||
{ $$ = make_reference_declarator ($2, NULL_TREE); }
|
||
| ptr_to_mem cv_qualifiers %prec EMPTY
|
||
{ tree arg = make_pointer_declarator ($2, NULL_TREE);
|
||
$$ = build_nt (SCOPE_REF, $1, arg);
|
||
}
|
||
| ptr_to_mem cv_qualifiers new_declarator
|
||
{ tree arg = make_pointer_declarator ($2, $3);
|
||
$$ = build_nt (SCOPE_REF, $1, arg);
|
||
}
|
||
| direct_new_declarator %prec EMPTY
|
||
;
|
||
|
||
/* ISO direct-new-declarator (5.3.4) */
|
||
direct_new_declarator:
|
||
'[' expr ']'
|
||
{ $$ = build_nt (ARRAY_REF, NULL_TREE, $2); }
|
||
| direct_new_declarator '[' expr ']'
|
||
{ $$ = build_nt (ARRAY_REF, $$, $3); }
|
||
;
|
||
|
||
absdcl_intern:
|
||
absdcl
|
||
| attributes absdcl
|
||
{
|
||
/* Provide support for '(' attributes '*' declarator ')'
|
||
etc */
|
||
$$ = tree_cons ($1, $2, NULL_TREE);
|
||
}
|
||
;
|
||
|
||
/* ISO abstract-declarator (8.1) */
|
||
absdcl:
|
||
'*' nonempty_cv_qualifiers absdcl_intern
|
||
{ $$ = make_pointer_declarator ($2.t, $3); }
|
||
| '*' absdcl_intern
|
||
{ $$ = make_pointer_declarator (NULL_TREE, $2); }
|
||
| '*' nonempty_cv_qualifiers %prec EMPTY
|
||
{ $$ = make_pointer_declarator ($2.t, NULL_TREE); }
|
||
| '*' %prec EMPTY
|
||
{ $$ = make_pointer_declarator (NULL_TREE, NULL_TREE); }
|
||
| '&' nonempty_cv_qualifiers absdcl_intern
|
||
{ $$ = make_reference_declarator ($2.t, $3); }
|
||
| '&' absdcl_intern
|
||
{ $$ = make_reference_declarator (NULL_TREE, $2); }
|
||
| '&' nonempty_cv_qualifiers %prec EMPTY
|
||
{ $$ = make_reference_declarator ($2.t, NULL_TREE); }
|
||
| '&' %prec EMPTY
|
||
{ $$ = make_reference_declarator (NULL_TREE, NULL_TREE); }
|
||
| ptr_to_mem cv_qualifiers %prec EMPTY
|
||
{ tree arg = make_pointer_declarator ($2, NULL_TREE);
|
||
$$ = build_nt (SCOPE_REF, $1, arg);
|
||
}
|
||
| ptr_to_mem cv_qualifiers absdcl_intern
|
||
{ tree arg = make_pointer_declarator ($2, $3);
|
||
$$ = build_nt (SCOPE_REF, $1, arg);
|
||
}
|
||
| direct_abstract_declarator %prec EMPTY
|
||
;
|
||
|
||
/* ISO direct-abstract-declarator (8.1) */
|
||
direct_abstract_declarator:
|
||
'(' absdcl_intern ')'
|
||
{ $$ = $2; }
|
||
/* `(typedef)1' is `int'. */
|
||
| direct_abstract_declarator '(' parmlist ')' cv_qualifiers exception_specification_opt %prec '.'
|
||
{ $$ = make_call_declarator ($$, $3, $5, $6); }
|
||
| direct_abstract_declarator LEFT_RIGHT cv_qualifiers exception_specification_opt %prec '.'
|
||
{ $$ = make_call_declarator ($$, empty_parms (), $3, $4); }
|
||
| direct_abstract_declarator '[' expr ']' %prec '.'
|
||
{ $$ = build_nt (ARRAY_REF, $$, $3); }
|
||
| direct_abstract_declarator '[' ']' %prec '.'
|
||
{ $$ = build_nt (ARRAY_REF, $$, NULL_TREE); }
|
||
| '(' complex_parmlist ')' cv_qualifiers exception_specification_opt %prec '.'
|
||
{ $$ = make_call_declarator (NULL_TREE, $2, $4, $5); }
|
||
| regcast_or_absdcl cv_qualifiers exception_specification_opt %prec '.'
|
||
{ set_quals_and_spec ($$, $2, $3); }
|
||
| fcast_or_absdcl cv_qualifiers exception_specification_opt %prec '.'
|
||
{ set_quals_and_spec ($$, $2, $3); }
|
||
| '[' expr ']' %prec '.'
|
||
{ $$ = build_nt (ARRAY_REF, NULL_TREE, $2); }
|
||
| '[' ']' %prec '.'
|
||
{ $$ = build_nt (ARRAY_REF, NULL_TREE, NULL_TREE); }
|
||
;
|
||
|
||
/* For C++, decls and stmts can be intermixed, so we don't need to
|
||
have a special rule that won't start parsing the stmt section
|
||
until we have a stmt that parses without errors. */
|
||
|
||
stmts:
|
||
stmt
|
||
| errstmt
|
||
| stmts stmt
|
||
| stmts errstmt
|
||
;
|
||
|
||
errstmt:
|
||
error ';'
|
||
;
|
||
|
||
/* 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 ';'
|
||
{
|
||
while ($2)
|
||
{
|
||
finish_label_decl (TREE_VALUE ($2));
|
||
$2 = TREE_CHAIN ($2);
|
||
}
|
||
}
|
||
;
|
||
|
||
compstmt_or_stmtexpr:
|
||
save_lineno '{'
|
||
{ $<ttype>$ = begin_compound_stmt (0); }
|
||
compstmtend
|
||
{ STMT_LINENO ($<ttype>3) = $1;
|
||
finish_compound_stmt (0, $<ttype>3); }
|
||
;
|
||
|
||
compstmt:
|
||
compstmt_or_stmtexpr
|
||
{ last_expr_type = NULL_TREE; }
|
||
;
|
||
|
||
simple_if:
|
||
IF
|
||
{ $<ttype>$ = begin_if_stmt ();
|
||
cond_stmt_keyword = "if"; }
|
||
paren_cond_or_null
|
||
{ finish_if_stmt_cond ($3, $<ttype>2); }
|
||
implicitly_scoped_stmt
|
||
{ $$ = $<ttype>2;
|
||
finish_then_clause ($<ttype>2); }
|
||
;
|
||
|
||
implicitly_scoped_stmt:
|
||
compstmt
|
||
|
|
||
{ $<ttype>$ = begin_compound_stmt (0); }
|
||
save_lineno simple_stmt
|
||
{ STMT_LINENO ($<ttype>1) = $2;
|
||
if ($3) STMT_LINENO ($3) = $2;
|
||
finish_compound_stmt (0, $<ttype>1); }
|
||
;
|
||
|
||
stmt:
|
||
compstmt
|
||
| save_lineno simple_stmt
|
||
{ if ($2) STMT_LINENO ($2) = $1; }
|
||
;
|
||
|
||
simple_stmt:
|
||
decl
|
||
{ finish_stmt ();
|
||
$$ = NULL_TREE; }
|
||
| expr ';'
|
||
{ $$ = finish_expr_stmt ($1); }
|
||
| simple_if ELSE
|
||
{ begin_else_clause (); }
|
||
implicitly_scoped_stmt
|
||
{
|
||
$$ = $1;
|
||
finish_else_clause ($1);
|
||
finish_if_stmt ();
|
||
}
|
||
| simple_if %prec IF
|
||
{ $$ = $1;
|
||
finish_if_stmt (); }
|
||
| WHILE
|
||
{
|
||
$<ttype>$ = begin_while_stmt ();
|
||
cond_stmt_keyword = "while";
|
||
}
|
||
paren_cond_or_null
|
||
{ finish_while_stmt_cond ($3, $<ttype>2); }
|
||
implicitly_scoped_stmt
|
||
{ $$ = $<ttype>2;
|
||
finish_while_stmt ($<ttype>2); }
|
||
| DO
|
||
{ $<ttype>$ = begin_do_stmt (); }
|
||
implicitly_scoped_stmt WHILE
|
||
{
|
||
finish_do_body ($<ttype>2);
|
||
cond_stmt_keyword = "do";
|
||
}
|
||
paren_expr_or_null ';'
|
||
{ $$ = $<ttype>2;
|
||
finish_do_stmt ($6, $<ttype>2); }
|
||
| FOR
|
||
{ $<ttype>$ = begin_for_stmt (); }
|
||
'(' for.init.statement
|
||
{ finish_for_init_stmt ($<ttype>2); }
|
||
xcond ';'
|
||
{ finish_for_cond ($6, $<ttype>2); }
|
||
xexpr ')'
|
||
{ finish_for_expr ($9, $<ttype>2); }
|
||
implicitly_scoped_stmt
|
||
{ $$ = $<ttype>2;
|
||
finish_for_stmt ($<ttype>2); }
|
||
| SWITCH
|
||
{ $<ttype>$ = begin_switch_stmt (); }
|
||
'(' condition ')'
|
||
{ finish_switch_cond ($4, $<ttype>2); }
|
||
implicitly_scoped_stmt
|
||
{ $$ = $<ttype>2;
|
||
finish_switch_stmt ($<ttype>2); }
|
||
| CASE expr_no_commas ':'
|
||
{ $<ttype>$ = finish_case_label ($2, NULL_TREE); }
|
||
stmt
|
||
{ $$ = $<ttype>4; }
|
||
| CASE expr_no_commas ELLIPSIS expr_no_commas ':'
|
||
{ $<ttype>$ = finish_case_label ($2, $4); }
|
||
stmt
|
||
{ $$ = $<ttype>6; }
|
||
| DEFAULT ':'
|
||
{ $<ttype>$ = finish_case_label (NULL_TREE, NULL_TREE); }
|
||
stmt
|
||
{ $$ = $<ttype>3; }
|
||
| BREAK ';'
|
||
{ $$ = finish_break_stmt (); }
|
||
| CONTINUE ';'
|
||
{ $$ = finish_continue_stmt (); }
|
||
| RETURN_KEYWORD ';'
|
||
{ $$ = finish_return_stmt (NULL_TREE); }
|
||
| RETURN_KEYWORD expr ';'
|
||
{ $$ = finish_return_stmt ($2); }
|
||
| asm_keyword maybe_cv_qualifier '(' string ')' ';'
|
||
{ $$ = finish_asm_stmt ($2, $4, NULL_TREE, NULL_TREE,
|
||
NULL_TREE);
|
||
ASM_INPUT_P ($$) = 1; }
|
||
/* This is the case with just output operands. */
|
||
| asm_keyword maybe_cv_qualifier '(' string ':' asm_operands ')' ';'
|
||
{ $$ = finish_asm_stmt ($2, $4, $6, NULL_TREE, NULL_TREE); }
|
||
/* This is the case with input operands as well. */
|
||
| asm_keyword maybe_cv_qualifier '(' string ':' asm_operands ':'
|
||
asm_operands ')' ';'
|
||
{ $$ = finish_asm_stmt ($2, $4, $6, $8, NULL_TREE); }
|
||
| asm_keyword maybe_cv_qualifier '(' string SCOPE asm_operands ')' ';'
|
||
{ $$ = finish_asm_stmt ($2, $4, NULL_TREE, $6, NULL_TREE); }
|
||
/* This is the case with clobbered registers as well. */
|
||
| asm_keyword maybe_cv_qualifier '(' string ':' asm_operands ':'
|
||
asm_operands ':' asm_clobbers ')' ';'
|
||
{ $$ = finish_asm_stmt ($2, $4, $6, $8, $10); }
|
||
| asm_keyword maybe_cv_qualifier '(' string SCOPE asm_operands ':'
|
||
asm_clobbers ')' ';'
|
||
{ $$ = finish_asm_stmt ($2, $4, NULL_TREE, $6, $8); }
|
||
| asm_keyword maybe_cv_qualifier '(' string ':' asm_operands SCOPE
|
||
asm_clobbers ')' ';'
|
||
{ $$ = finish_asm_stmt ($2, $4, $6, NULL_TREE, $8); }
|
||
| GOTO '*' expr ';'
|
||
{
|
||
if (pedantic)
|
||
pedwarn ("ISO C++ forbids computed gotos");
|
||
$$ = finish_goto_stmt ($3);
|
||
}
|
||
| GOTO identifier ';'
|
||
{ $$ = finish_goto_stmt ($2); }
|
||
| label_colon stmt
|
||
{ $$ = NULL_TREE; }
|
||
| label_colon '}'
|
||
{ error ("label must be followed by statement");
|
||
yyungetc ('}', 0);
|
||
$$ = NULL_TREE; }
|
||
| ';'
|
||
{ finish_stmt ();
|
||
$$ = NULL_TREE; }
|
||
| try_block
|
||
{ $$ = NULL_TREE; }
|
||
| using_directive
|
||
{ $$ = NULL_TREE; }
|
||
| namespace_using_decl
|
||
{ do_local_using_decl ($1);
|
||
$$ = NULL_TREE; }
|
||
| namespace_alias
|
||
{ $$ = NULL_TREE; }
|
||
;
|
||
|
||
function_try_block:
|
||
TRY
|
||
{ $<ttype>$ = begin_function_try_block (); }
|
||
function_body
|
||
{ finish_function_try_block ($<ttype>2); }
|
||
handler_seq
|
||
{ finish_function_handler_sequence ($<ttype>2); }
|
||
;
|
||
|
||
try_block:
|
||
TRY
|
||
{ $<ttype>$ = begin_try_block (); }
|
||
compstmt
|
||
{ finish_try_block ($<ttype>2); }
|
||
handler_seq
|
||
{ finish_handler_sequence ($<ttype>2); }
|
||
;
|
||
|
||
handler_seq:
|
||
handler
|
||
| handler_seq handler
|
||
| /* empty */
|
||
{ /* Generate a fake handler block to avoid later aborts. */
|
||
tree fake_handler = begin_handler ();
|
||
finish_handler_parms (NULL_TREE, fake_handler);
|
||
finish_handler (fake_handler);
|
||
$<ttype>$ = fake_handler;
|
||
|
||
error ("must have at least one catch per try block");
|
||
}
|
||
;
|
||
|
||
handler:
|
||
CATCH
|
||
{ $<ttype>$ = begin_handler (); }
|
||
handler_args
|
||
{ finish_handler_parms ($3, $<ttype>2); }
|
||
compstmt
|
||
{ finish_handler ($<ttype>2); }
|
||
;
|
||
|
||
type_specifier_seq:
|
||
typed_typespecs %prec EMPTY
|
||
| nonempty_cv_qualifiers %prec EMPTY
|
||
;
|
||
|
||
handler_args:
|
||
'(' ELLIPSIS ')'
|
||
{ $$ = NULL_TREE; }
|
||
/* This doesn't allow reference parameters, the below does.
|
||
| '(' type_specifier_seq absdcl ')'
|
||
{ check_for_new_type ("inside exception declarations", $2);
|
||
expand_start_catch_block ($2.t, $3); }
|
||
| '(' type_specifier_seq ')'
|
||
{ check_for_new_type ("inside exception declarations", $2);
|
||
expand_start_catch_block ($2.t, NULL_TREE); }
|
||
| '(' type_specifier_seq notype_declarator ')'
|
||
{ check_for_new_type ("inside exception declarations", $2);
|
||
expand_start_catch_block ($2.t, $3); }
|
||
| '(' typed_typespecs after_type_declarator ')'
|
||
{ check_for_new_type ("inside exception declarations", $2);
|
||
expand_start_catch_block ($2.t, $3); }
|
||
This allows reference parameters... */
|
||
| '(' parm ')'
|
||
{
|
||
check_for_new_type ("inside exception declarations", $2);
|
||
$$ = start_handler_parms (TREE_PURPOSE ($2.t),
|
||
TREE_VALUE ($2.t));
|
||
}
|
||
;
|
||
|
||
label_colon:
|
||
IDENTIFIER ':'
|
||
{ finish_label_stmt ($1); }
|
||
| PTYPENAME ':'
|
||
{ finish_label_stmt ($1); }
|
||
| tTYPENAME ':'
|
||
{ finish_label_stmt ($1); }
|
||
| SELFNAME ':'
|
||
{ finish_label_stmt ($1); }
|
||
;
|
||
|
||
for.init.statement:
|
||
xexpr ';'
|
||
{ finish_expr_stmt ($1); }
|
||
| decl
|
||
| '{' compstmtend
|
||
{ if (pedantic)
|
||
pedwarn ("ISO C++ forbids compound statements inside for initializations");
|
||
}
|
||
;
|
||
|
||
/* Either a type-qualifier or nothing. First thing in an `asm' statement. */
|
||
|
||
maybe_cv_qualifier:
|
||
/* empty */
|
||
{ $$ = NULL_TREE; }
|
||
| CV_QUALIFIER
|
||
;
|
||
|
||
xexpr:
|
||
/* empty */
|
||
{ $$ = NULL_TREE; }
|
||
| expr
|
||
| error
|
||
{ $$ = NULL_TREE; }
|
||
;
|
||
|
||
/* 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 ($$, $3); }
|
||
;
|
||
|
||
asm_operand:
|
||
STRING '(' expr ')'
|
||
{ $$ = 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
|
||
{ $$ = tree_cons (NULL_TREE, combine_strings ($3), $1); }
|
||
;
|
||
|
||
/* This is what appears inside the parens in a function declarator.
|
||
Its value is represented in the format that grokdeclarator expects.
|
||
|
||
In C++, declaring a function with no parameters
|
||
means that that function takes *no* parameters. */
|
||
|
||
parmlist:
|
||
/* empty */
|
||
{
|
||
$$ = empty_parms();
|
||
}
|
||
| complex_parmlist
|
||
| type_id
|
||
{ $$ = finish_parmlist (build_tree_list (NULL_TREE, $1.t), 0);
|
||
check_for_new_type ("inside parameter list", $1); }
|
||
;
|
||
|
||
/* This nonterminal does not include the common sequence '(' type_id ')',
|
||
as it is ambiguous and must be disambiguated elsewhere. */
|
||
complex_parmlist:
|
||
parms
|
||
{ $$ = finish_parmlist ($$, 0); }
|
||
| parms_comma ELLIPSIS
|
||
{ $$ = finish_parmlist ($1, 1); }
|
||
/* C++ allows an ellipsis without a separating ',' */
|
||
| parms ELLIPSIS
|
||
{ $$ = finish_parmlist ($1, 1); }
|
||
| type_id ELLIPSIS
|
||
{ $$ = finish_parmlist (build_tree_list (NULL_TREE,
|
||
$1.t), 1); }
|
||
| ELLIPSIS
|
||
{ $$ = finish_parmlist (NULL_TREE, 1); }
|
||
| parms ':'
|
||
{
|
||
/* This helps us recover from really nasty
|
||
parse errors, for example, a missing right
|
||
parenthesis. */
|
||
yyerror ("possibly missing ')'");
|
||
$$ = finish_parmlist ($1, 0);
|
||
yyungetc (':', 0);
|
||
yychar = ')';
|
||
}
|
||
| type_id ':'
|
||
{
|
||
/* This helps us recover from really nasty
|
||
parse errors, for example, a missing right
|
||
parenthesis. */
|
||
yyerror ("possibly missing ')'");
|
||
$$ = finish_parmlist (build_tree_list (NULL_TREE,
|
||
$1.t), 0);
|
||
yyungetc (':', 0);
|
||
yychar = ')';
|
||
}
|
||
;
|
||
|
||
/* A default argument to a */
|
||
defarg:
|
||
'='
|
||
{ maybe_snarf_defarg (); }
|
||
defarg1
|
||
{ $$ = $3; }
|
||
;
|
||
|
||
defarg1:
|
||
DEFARG
|
||
| init
|
||
;
|
||
|
||
/* A nonempty list of parameter declarations or type names. */
|
||
parms:
|
||
named_parm
|
||
{ check_for_new_type ("in a parameter list", $1);
|
||
$$ = build_tree_list (NULL_TREE, $1.t); }
|
||
| parm defarg
|
||
{ check_for_new_type ("in a parameter list", $1);
|
||
$$ = build_tree_list ($2, $1.t); }
|
||
| parms_comma full_parm
|
||
{ check_for_new_type ("in a parameter list", $2);
|
||
$$ = chainon ($$, $2.t); }
|
||
| parms_comma bad_parm
|
||
{ $$ = chainon ($$, build_tree_list (NULL_TREE, $2)); }
|
||
| parms_comma bad_parm '=' init
|
||
{ $$ = chainon ($$, build_tree_list ($4, $2)); }
|
||
;
|
||
|
||
parms_comma:
|
||
parms ','
|
||
| type_id ','
|
||
{ check_for_new_type ("in a parameter list", $1);
|
||
$$ = build_tree_list (NULL_TREE, $1.t); }
|
||
;
|
||
|
||
/* A single parameter declaration or parameter type name,
|
||
as found in a parmlist. */
|
||
named_parm:
|
||
/* Here we expand typed_declspecs inline to avoid mis-parsing of
|
||
TYPESPEC IDENTIFIER. */
|
||
typed_declspecs1 declarator
|
||
{ $$.new_type_flag = $1.new_type_flag;
|
||
$$.t = build_tree_list ($1.t, $2); }
|
||
| typed_typespecs declarator
|
||
{ $$.t = build_tree_list ($1.t, $2);
|
||
$$.new_type_flag = $1.new_type_flag; }
|
||
| typespec declarator
|
||
{ $$.t = build_tree_list (build_tree_list (NULL_TREE, $1.t),
|
||
$2);
|
||
$$.new_type_flag = $1.new_type_flag; }
|
||
| typed_declspecs1 absdcl
|
||
{ $$.t = build_tree_list ($1.t, $2);
|
||
$$.new_type_flag = $1.new_type_flag; }
|
||
| typed_declspecs1 %prec EMPTY
|
||
{ $$.t = build_tree_list ($1.t, NULL_TREE);
|
||
$$.new_type_flag = $1.new_type_flag; }
|
||
| declmods notype_declarator
|
||
{ $$.t = build_tree_list ($1.t, $2);
|
||
$$.new_type_flag = 0; }
|
||
;
|
||
|
||
full_parm:
|
||
parm
|
||
{ $$.t = build_tree_list (NULL_TREE, $1.t);
|
||
$$.new_type_flag = $1.new_type_flag; }
|
||
| parm defarg
|
||
{ $$.t = build_tree_list ($2, $1.t);
|
||
$$.new_type_flag = $1.new_type_flag; }
|
||
;
|
||
|
||
parm:
|
||
named_parm
|
||
| type_id
|
||
;
|
||
|
||
see_typename:
|
||
/* empty */ %prec EMPTY
|
||
{ see_typename (); }
|
||
;
|
||
|
||
bad_parm:
|
||
/* empty */ %prec EMPTY
|
||
{
|
||
error ("type specifier omitted for parameter");
|
||
$$ = build_tree_list (integer_type_node, NULL_TREE);
|
||
}
|
||
| notype_declarator
|
||
{
|
||
if (TREE_CODE ($$) == SCOPE_REF)
|
||
{
|
||
if (TREE_CODE (TREE_OPERAND ($$, 0)) == TEMPLATE_TYPE_PARM
|
||
|| TREE_CODE (TREE_OPERAND ($$, 0)) == BOUND_TEMPLATE_TEMPLATE_PARM)
|
||
error ("`%E' is not a type, use `typename %E' to make it one", $$);
|
||
else
|
||
error ("no type `%D' in `%T'", TREE_OPERAND ($$, 1), TREE_OPERAND ($$, 0));
|
||
}
|
||
else
|
||
error ("type specifier omitted for parameter `%E'", $$);
|
||
$$ = build_tree_list (integer_type_node, $$);
|
||
}
|
||
;
|
||
|
||
bad_decl:
|
||
IDENTIFIER template_arg_list_ignore IDENTIFIER arg_list_ignore ';'
|
||
{
|
||
error("'%D' is used as a type, but is not defined as a type.", $1);
|
||
$3 = error_mark_node;
|
||
}
|
||
;
|
||
|
||
template_arg_list_ignore:
|
||
'<' template_arg_list_opt template_close_bracket
|
||
{ }
|
||
| /* empty */
|
||
;
|
||
|
||
arg_list_ignore:
|
||
'(' nonnull_exprlist ')'
|
||
{ }
|
||
| /* empty */
|
||
;
|
||
|
||
exception_specification_opt:
|
||
/* empty */ %prec EMPTY
|
||
{ $$ = NULL_TREE; }
|
||
| THROW '(' ansi_raise_identifiers ')' %prec EMPTY
|
||
{ $$ = $3; }
|
||
| THROW LEFT_RIGHT %prec EMPTY
|
||
{ $$ = empty_except_spec; }
|
||
;
|
||
|
||
ansi_raise_identifier:
|
||
type_id
|
||
{
|
||
check_for_new_type ("exception specifier", $1);
|
||
$$ = groktypename ($1.t);
|
||
}
|
||
| error
|
||
{ $$ = error_mark_node; }
|
||
;
|
||
|
||
ansi_raise_identifiers:
|
||
ansi_raise_identifier
|
||
{ $$ = add_exception_specifier (NULL_TREE, $1, 1); }
|
||
| ansi_raise_identifiers ',' ansi_raise_identifier
|
||
{ $$ = add_exception_specifier ($1, $3, 1); }
|
||
;
|
||
|
||
conversion_declarator:
|
||
/* empty */ %prec EMPTY
|
||
{ $$ = NULL_TREE; }
|
||
| '*' cv_qualifiers conversion_declarator
|
||
{ $$ = make_pointer_declarator ($2, $3); }
|
||
| '&' cv_qualifiers conversion_declarator
|
||
{ $$ = make_reference_declarator ($2, $3); }
|
||
| ptr_to_mem cv_qualifiers conversion_declarator
|
||
{ tree arg = make_pointer_declarator ($2, $3);
|
||
$$ = build_nt (SCOPE_REF, $1, arg);
|
||
}
|
||
;
|
||
|
||
operator:
|
||
OPERATOR
|
||
{
|
||
saved_scopes = tree_cons (got_scope, got_object, saved_scopes);
|
||
TREE_LANG_FLAG_0 (saved_scopes) = looking_for_typename;
|
||
/* We look for conversion-type-id's in both the class and current
|
||
scopes, just as for ID in 'ptr->ID::'. */
|
||
looking_for_typename = 1;
|
||
got_object = got_scope;
|
||
got_scope = NULL_TREE;
|
||
}
|
||
;
|
||
|
||
unoperator:
|
||
{ got_scope = TREE_PURPOSE (saved_scopes);
|
||
got_object = TREE_VALUE (saved_scopes);
|
||
looking_for_typename = TREE_LANG_FLAG_0 (saved_scopes);
|
||
saved_scopes = TREE_CHAIN (saved_scopes);
|
||
}
|
||
;
|
||
|
||
operator_name:
|
||
operator '*' unoperator
|
||
{ $$ = frob_opname (ansi_opname (MULT_EXPR)); }
|
||
| operator '/' unoperator
|
||
{ $$ = frob_opname (ansi_opname (TRUNC_DIV_EXPR)); }
|
||
| operator '%' unoperator
|
||
{ $$ = frob_opname (ansi_opname (TRUNC_MOD_EXPR)); }
|
||
| operator '+' unoperator
|
||
{ $$ = frob_opname (ansi_opname (PLUS_EXPR)); }
|
||
| operator '-' unoperator
|
||
{ $$ = frob_opname (ansi_opname (MINUS_EXPR)); }
|
||
| operator '&' unoperator
|
||
{ $$ = frob_opname (ansi_opname (BIT_AND_EXPR)); }
|
||
| operator '|' unoperator
|
||
{ $$ = frob_opname (ansi_opname (BIT_IOR_EXPR)); }
|
||
| operator '^' unoperator
|
||
{ $$ = frob_opname (ansi_opname (BIT_XOR_EXPR)); }
|
||
| operator '~' unoperator
|
||
{ $$ = frob_opname (ansi_opname (BIT_NOT_EXPR)); }
|
||
| operator ',' unoperator
|
||
{ $$ = frob_opname (ansi_opname (COMPOUND_EXPR)); }
|
||
| operator ARITHCOMPARE unoperator
|
||
{ $$ = frob_opname (ansi_opname ($2)); }
|
||
| operator '<' unoperator
|
||
{ $$ = frob_opname (ansi_opname (LT_EXPR)); }
|
||
| operator '>' unoperator
|
||
{ $$ = frob_opname (ansi_opname (GT_EXPR)); }
|
||
| operator EQCOMPARE unoperator
|
||
{ $$ = frob_opname (ansi_opname ($2)); }
|
||
| operator ASSIGN unoperator
|
||
{ $$ = frob_opname (ansi_assopname ($2)); }
|
||
| operator '=' unoperator
|
||
{ $$ = frob_opname (ansi_assopname (NOP_EXPR)); }
|
||
| operator LSHIFT unoperator
|
||
{ $$ = frob_opname (ansi_opname ($2)); }
|
||
| operator RSHIFT unoperator
|
||
{ $$ = frob_opname (ansi_opname ($2)); }
|
||
| operator PLUSPLUS unoperator
|
||
{ $$ = frob_opname (ansi_opname (POSTINCREMENT_EXPR)); }
|
||
| operator MINUSMINUS unoperator
|
||
{ $$ = frob_opname (ansi_opname (PREDECREMENT_EXPR)); }
|
||
| operator ANDAND unoperator
|
||
{ $$ = frob_opname (ansi_opname (TRUTH_ANDIF_EXPR)); }
|
||
| operator OROR unoperator
|
||
{ $$ = frob_opname (ansi_opname (TRUTH_ORIF_EXPR)); }
|
||
| operator '!' unoperator
|
||
{ $$ = frob_opname (ansi_opname (TRUTH_NOT_EXPR)); }
|
||
| operator '?' ':' unoperator
|
||
{ $$ = frob_opname (ansi_opname (COND_EXPR)); }
|
||
| operator MIN_MAX unoperator
|
||
{ $$ = frob_opname (ansi_opname ($2)); }
|
||
| operator POINTSAT unoperator %prec EMPTY
|
||
{ $$ = frob_opname (ansi_opname (COMPONENT_REF)); }
|
||
| operator POINTSAT_STAR unoperator %prec EMPTY
|
||
{ $$ = frob_opname (ansi_opname (MEMBER_REF)); }
|
||
| operator LEFT_RIGHT unoperator
|
||
{ $$ = frob_opname (ansi_opname (CALL_EXPR)); }
|
||
| operator '[' ']' unoperator
|
||
{ $$ = frob_opname (ansi_opname (ARRAY_REF)); }
|
||
| operator NEW unoperator %prec EMPTY
|
||
{ $$ = frob_opname (ansi_opname (NEW_EXPR)); }
|
||
| operator DELETE unoperator %prec EMPTY
|
||
{ $$ = frob_opname (ansi_opname (DELETE_EXPR)); }
|
||
| operator NEW '[' ']' unoperator
|
||
{ $$ = frob_opname (ansi_opname (VEC_NEW_EXPR)); }
|
||
| operator DELETE '[' ']' unoperator
|
||
{ $$ = frob_opname (ansi_opname (VEC_DELETE_EXPR)); }
|
||
| operator type_specifier_seq conversion_declarator unoperator
|
||
{ $$ = frob_opname (grokoptypename ($2.t, $3)); }
|
||
| operator error unoperator
|
||
{ $$ = frob_opname (ansi_opname (ERROR_MARK)); }
|
||
;
|
||
|
||
/* The forced readahead in here is because we might be at the end of a
|
||
line, and lineno won't be bumped until yylex absorbs the first token
|
||
on the next line. */
|
||
save_lineno:
|
||
{ if (yychar == YYEMPTY)
|
||
yychar = YYLEX;
|
||
$$ = lineno; }
|
||
;
|
||
%%
|
||
|
||
#ifdef SPEW_DEBUG
|
||
const char *
|
||
debug_yytranslate (value)
|
||
int value;
|
||
{
|
||
return yytname[YYTRANSLATE (value)];
|
||
}
|
||
|
||
#endif
|