/* YACC parser for Pascal expressions, for GDB.
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/* YACC parser for Pascal expressions, for GDB.
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Copyright (C) 2000, 2006, 2007, 2008 Free Software Foundation, Inc.
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Copyright (C) 2000, 2006, 2007, 2008 Free Software Foundation, Inc.
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This file is part of GDB.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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This program 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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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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(at your option) any later version.
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|
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This program is distributed in the hope that it will be useful,
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This program 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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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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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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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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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA. */
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Boston, MA 02110-1301, USA. */
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/* This file is derived from c-exp.y */
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/* This file is derived from c-exp.y */
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/* Parse a Pascal expression from text in a string,
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/* Parse a Pascal expression from text in a string,
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and return the result as a struct expression pointer.
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and return the result as a struct expression pointer.
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That structure contains arithmetic operations in reverse polish,
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That structure contains arithmetic operations in reverse polish,
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with constants represented by operations that are followed by special data.
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with constants represented by operations that are followed by special data.
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See expression.h for the details of the format.
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See expression.h for the details of the format.
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What is important here is that it can be built up sequentially
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What is important here is that it can be built up sequentially
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during the process of parsing; the lower levels of the tree always
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during the process of parsing; the lower levels of the tree always
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come first in the result.
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come first in the result.
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Note that malloc's and realloc's in this file are transformed to
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Note that malloc's and realloc's in this file are transformed to
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xmalloc and xrealloc respectively by the same sed command in the
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xmalloc and xrealloc respectively by the same sed command in the
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makefile that remaps any other malloc/realloc inserted by the parser
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makefile that remaps any other malloc/realloc inserted by the parser
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generator. Doing this with #defines and trying to control the interaction
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generator. Doing this with #defines and trying to control the interaction
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with include files ( and for example) just became
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with include files ( and for example) just became
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too messy, particularly when such includes can be inserted at random
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too messy, particularly when such includes can be inserted at random
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times by the parser generator. */
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times by the parser generator. */
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/* Known bugs or limitations:
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/* Known bugs or limitations:
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- pascal string operations are not supported at all.
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- pascal string operations are not supported at all.
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- there are some problems with boolean types.
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- there are some problems with boolean types.
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- Pascal type hexadecimal constants are not supported
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- Pascal type hexadecimal constants are not supported
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because they conflict with the internal variables format.
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because they conflict with the internal variables format.
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Probably also lots of other problems, less well defined PM */
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Probably also lots of other problems, less well defined PM */
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%{
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%{
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#include "defs.h"
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#include "defs.h"
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#include "gdb_string.h"
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#include "gdb_string.h"
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#include
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#include
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#include "expression.h"
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#include "expression.h"
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#include "value.h"
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#include "value.h"
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#include "parser-defs.h"
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#include "parser-defs.h"
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#include "language.h"
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#include "language.h"
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#include "p-lang.h"
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#include "p-lang.h"
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#include "bfd.h" /* Required by objfiles.h. */
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#include "bfd.h" /* Required by objfiles.h. */
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#include "symfile.h" /* Required by objfiles.h. */
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#include "symfile.h" /* Required by objfiles.h. */
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#include "objfiles.h" /* For have_full_symbols and have_partial_symbols */
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#include "objfiles.h" /* For have_full_symbols and have_partial_symbols */
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#include "block.h"
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#include "block.h"
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/* Remap normal yacc parser interface names (yyparse, yylex, yyerror, etc),
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/* Remap normal yacc parser interface names (yyparse, yylex, yyerror, etc),
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as well as gratuitiously global symbol names, so we can have multiple
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as well as gratuitiously global symbol names, so we can have multiple
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yacc generated parsers in gdb. Note that these are only the variables
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yacc generated parsers in gdb. Note that these are only the variables
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produced by yacc. If other parser generators (bison, byacc, etc) produce
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produced by yacc. If other parser generators (bison, byacc, etc) produce
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additional global names that conflict at link time, then those parser
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additional global names that conflict at link time, then those parser
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generators need to be fixed instead of adding those names to this list. */
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generators need to be fixed instead of adding those names to this list. */
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#define yymaxdepth pascal_maxdepth
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#define yymaxdepth pascal_maxdepth
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#define yyparse pascal_parse
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#define yyparse pascal_parse
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#define yylex pascal_lex
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#define yylex pascal_lex
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#define yyerror pascal_error
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#define yyerror pascal_error
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#define yylval pascal_lval
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#define yylval pascal_lval
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#define yychar pascal_char
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#define yychar pascal_char
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#define yydebug pascal_debug
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#define yydebug pascal_debug
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#define yypact pascal_pact
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#define yypact pascal_pact
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#define yyr1 pascal_r1
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#define yyr1 pascal_r1
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#define yyr2 pascal_r2
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#define yyr2 pascal_r2
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#define yydef pascal_def
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#define yydef pascal_def
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#define yychk pascal_chk
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#define yychk pascal_chk
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#define yypgo pascal_pgo
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#define yypgo pascal_pgo
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#define yyact pascal_act
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#define yyact pascal_act
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#define yyexca pascal_exca
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#define yyexca pascal_exca
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#define yyerrflag pascal_errflag
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#define yyerrflag pascal_errflag
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#define yynerrs pascal_nerrs
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#define yynerrs pascal_nerrs
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#define yyps pascal_ps
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#define yyps pascal_ps
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#define yypv pascal_pv
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#define yypv pascal_pv
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#define yys pascal_s
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#define yys pascal_s
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#define yy_yys pascal_yys
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#define yy_yys pascal_yys
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#define yystate pascal_state
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#define yystate pascal_state
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#define yytmp pascal_tmp
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#define yytmp pascal_tmp
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#define yyv pascal_v
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#define yyv pascal_v
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#define yy_yyv pascal_yyv
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#define yy_yyv pascal_yyv
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#define yyval pascal_val
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#define yyval pascal_val
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#define yylloc pascal_lloc
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#define yylloc pascal_lloc
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#define yyreds pascal_reds /* With YYDEBUG defined */
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#define yyreds pascal_reds /* With YYDEBUG defined */
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#define yytoks pascal_toks /* With YYDEBUG defined */
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#define yytoks pascal_toks /* With YYDEBUG defined */
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#define yyname pascal_name /* With YYDEBUG defined */
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#define yyname pascal_name /* With YYDEBUG defined */
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#define yyrule pascal_rule /* With YYDEBUG defined */
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#define yyrule pascal_rule /* With YYDEBUG defined */
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#define yylhs pascal_yylhs
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#define yylhs pascal_yylhs
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#define yylen pascal_yylen
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#define yylen pascal_yylen
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#define yydefred pascal_yydefred
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#define yydefred pascal_yydefred
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#define yydgoto pascal_yydgoto
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#define yydgoto pascal_yydgoto
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#define yysindex pascal_yysindex
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#define yysindex pascal_yysindex
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#define yyrindex pascal_yyrindex
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#define yyrindex pascal_yyrindex
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#define yygindex pascal_yygindex
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#define yygindex pascal_yygindex
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#define yytable pascal_yytable
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#define yytable pascal_yytable
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#define yycheck pascal_yycheck
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#define yycheck pascal_yycheck
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#ifndef YYDEBUG
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#ifndef YYDEBUG
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#define YYDEBUG 1 /* Default to yydebug support */
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#define YYDEBUG 1 /* Default to yydebug support */
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#endif
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#endif
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#define YYFPRINTF parser_fprintf
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#define YYFPRINTF parser_fprintf
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int yyparse (void);
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int yyparse (void);
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static int yylex (void);
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static int yylex (void);
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void
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void
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yyerror (char *);
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yyerror (char *);
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static char * uptok (char *, int);
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static char * uptok (char *, int);
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%}
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%}
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/* Although the yacc "value" of an expression is not used,
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/* Although the yacc "value" of an expression is not used,
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since the result is stored in the structure being created,
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since the result is stored in the structure being created,
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other node types do have values. */
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other node types do have values. */
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%union
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%union
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{
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{
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LONGEST lval;
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LONGEST lval;
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struct {
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struct {
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LONGEST val;
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LONGEST val;
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struct type *type;
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struct type *type;
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} typed_val_int;
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} typed_val_int;
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struct {
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struct {
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DOUBLEST dval;
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DOUBLEST dval;
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struct type *type;
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struct type *type;
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} typed_val_float;
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} typed_val_float;
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struct symbol *sym;
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struct symbol *sym;
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struct type *tval;
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struct type *tval;
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struct stoken sval;
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struct stoken sval;
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struct ttype tsym;
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struct ttype tsym;
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struct symtoken ssym;
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struct symtoken ssym;
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int voidval;
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int voidval;
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struct block *bval;
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struct block *bval;
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enum exp_opcode opcode;
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enum exp_opcode opcode;
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struct internalvar *ivar;
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struct internalvar *ivar;
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struct type **tvec;
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struct type **tvec;
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int *ivec;
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int *ivec;
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}
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}
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%{
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%{
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/* YYSTYPE gets defined by %union */
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/* YYSTYPE gets defined by %union */
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static int
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static int
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parse_number (char *, int, int, YYSTYPE *);
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parse_number (char *, int, int, YYSTYPE *);
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static struct type *current_type;
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static struct type *current_type;
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static int leftdiv_is_integer;
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static int leftdiv_is_integer;
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static void push_current_type (void);
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static void push_current_type (void);
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static void pop_current_type (void);
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static void pop_current_type (void);
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static int search_field;
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static int search_field;
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%}
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%}
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%type exp exp1 type_exp start normal_start variable qualified_name
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%type exp exp1 type_exp start normal_start variable qualified_name
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%type type typebase
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%type type typebase
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/* %type block */
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/* %type block */
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/* Fancy type parsing. */
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/* Fancy type parsing. */
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%type ptype
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%type ptype
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%token INT
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%token INT
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%token FLOAT
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%token FLOAT
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/* Both NAME and TYPENAME tokens represent symbols in the input,
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/* Both NAME and TYPENAME tokens represent symbols in the input,
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and both convey their data as strings.
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and both convey their data as strings.
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But a TYPENAME is a string that happens to be defined as a typedef
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But a TYPENAME is a string that happens to be defined as a typedef
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or builtin type name (such as int or char)
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or builtin type name (such as int or char)
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and a NAME is any other symbol.
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and a NAME is any other symbol.
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Contexts where this distinction is not important can use the
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Contexts where this distinction is not important can use the
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nonterminal "name", which matches either NAME or TYPENAME. */
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nonterminal "name", which matches either NAME or TYPENAME. */
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%token STRING
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%token STRING
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%token FIELDNAME
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%token FIELDNAME
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%token NAME /* BLOCKNAME defined below to give it higher precedence. */
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%token NAME /* BLOCKNAME defined below to give it higher precedence. */
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%token TYPENAME
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%token TYPENAME
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%type name
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%type name
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%type name_not_typename
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%type name_not_typename
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/* A NAME_OR_INT is a symbol which is not known in the symbol table,
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/* A NAME_OR_INT is a symbol which is not known in the symbol table,
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but which would parse as a valid number in the current input radix.
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but which would parse as a valid number in the current input radix.
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E.g. "c" when input_radix==16. Depending on the parse, it will be
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E.g. "c" when input_radix==16. Depending on the parse, it will be
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turned into a name or into a number. */
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turned into a name or into a number. */
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%token NAME_OR_INT
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%token NAME_OR_INT
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%token STRUCT CLASS SIZEOF COLONCOLON
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%token STRUCT CLASS SIZEOF COLONCOLON
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%token ERROR
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%token ERROR
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/* Special type cases, put in to allow the parser to distinguish different
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/* Special type cases, put in to allow the parser to distinguish different
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legal basetypes. */
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legal basetypes. */
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%token VARIABLE
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%token VARIABLE
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/* Object pascal */
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/* Object pascal */
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%token THIS
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%token THIS
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%token TRUEKEYWORD FALSEKEYWORD
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%token TRUEKEYWORD FALSEKEYWORD
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%left ','
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%left ','
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%left ABOVE_COMMA
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%left ABOVE_COMMA
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%right ASSIGN
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%right ASSIGN
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%left NOT
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%left NOT
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%left OR
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%left OR
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%left XOR
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%left XOR
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%left ANDAND
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%left ANDAND
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%left '=' NOTEQUAL
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%left '=' NOTEQUAL
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%left '<' '>' LEQ GEQ
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%left '<' '>' LEQ GEQ
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%left LSH RSH DIV MOD
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%left LSH RSH DIV MOD
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%left '@'
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%left '@'
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%left '+' '-'
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%left '+' '-'
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%left '*' '/'
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%left '*' '/'
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%right UNARY INCREMENT DECREMENT
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%right UNARY INCREMENT DECREMENT
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%right ARROW '.' '[' '('
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%right ARROW '.' '[' '('
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%left '^'
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%left '^'
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%token BLOCKNAME
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%token BLOCKNAME
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%type block
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%type block
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%left COLONCOLON
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%left COLONCOLON
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|
|
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%%
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%%
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start : { current_type = NULL;
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start : { current_type = NULL;
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search_field = 0;
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search_field = 0;
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leftdiv_is_integer = 0;
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leftdiv_is_integer = 0;
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}
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}
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normal_start {}
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normal_start {}
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;
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;
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|
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normal_start :
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normal_start :
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exp1
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exp1
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| type_exp
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| type_exp
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;
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;
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type_exp: type
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type_exp: type
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{ write_exp_elt_opcode(OP_TYPE);
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{ write_exp_elt_opcode(OP_TYPE);
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write_exp_elt_type($1);
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write_exp_elt_type($1);
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write_exp_elt_opcode(OP_TYPE);
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write_exp_elt_opcode(OP_TYPE);
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current_type = $1; } ;
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current_type = $1; } ;
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|
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/* Expressions, including the comma operator. */
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/* Expressions, including the comma operator. */
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exp1 : exp
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exp1 : exp
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| exp1 ',' exp
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| exp1 ',' exp
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{ write_exp_elt_opcode (BINOP_COMMA); }
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{ write_exp_elt_opcode (BINOP_COMMA); }
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;
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;
|
|
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/* Expressions, not including the comma operator. */
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/* Expressions, not including the comma operator. */
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exp : exp '^' %prec UNARY
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exp : exp '^' %prec UNARY
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{ write_exp_elt_opcode (UNOP_IND);
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{ write_exp_elt_opcode (UNOP_IND);
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if (current_type)
|
if (current_type)
|
current_type = TYPE_TARGET_TYPE (current_type); }
|
current_type = TYPE_TARGET_TYPE (current_type); }
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;
|
;
|
|
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exp : '@' exp %prec UNARY
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exp : '@' exp %prec UNARY
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{ write_exp_elt_opcode (UNOP_ADDR);
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{ write_exp_elt_opcode (UNOP_ADDR);
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if (current_type)
|
if (current_type)
|
current_type = TYPE_POINTER_TYPE (current_type); }
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current_type = TYPE_POINTER_TYPE (current_type); }
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;
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;
|
|
|
exp : '-' exp %prec UNARY
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exp : '-' exp %prec UNARY
|
{ write_exp_elt_opcode (UNOP_NEG); }
|
{ write_exp_elt_opcode (UNOP_NEG); }
|
;
|
;
|
|
|
exp : NOT exp %prec UNARY
|
exp : NOT exp %prec UNARY
|
{ write_exp_elt_opcode (UNOP_LOGICAL_NOT); }
|
{ write_exp_elt_opcode (UNOP_LOGICAL_NOT); }
|
;
|
;
|
|
|
exp : INCREMENT '(' exp ')' %prec UNARY
|
exp : INCREMENT '(' exp ')' %prec UNARY
|
{ write_exp_elt_opcode (UNOP_PREINCREMENT); }
|
{ write_exp_elt_opcode (UNOP_PREINCREMENT); }
|
;
|
;
|
|
|
exp : DECREMENT '(' exp ')' %prec UNARY
|
exp : DECREMENT '(' exp ')' %prec UNARY
|
{ write_exp_elt_opcode (UNOP_PREDECREMENT); }
|
{ write_exp_elt_opcode (UNOP_PREDECREMENT); }
|
;
|
;
|
|
|
exp : exp '.' { search_field = 1; }
|
exp : exp '.' { search_field = 1; }
|
FIELDNAME
|
FIELDNAME
|
/* name */
|
/* name */
|
{ write_exp_elt_opcode (STRUCTOP_STRUCT);
|
{ write_exp_elt_opcode (STRUCTOP_STRUCT);
|
write_exp_string ($4);
|
write_exp_string ($4);
|
write_exp_elt_opcode (STRUCTOP_STRUCT);
|
write_exp_elt_opcode (STRUCTOP_STRUCT);
|
search_field = 0;
|
search_field = 0;
|
if (current_type)
|
if (current_type)
|
{ while (TYPE_CODE (current_type) == TYPE_CODE_PTR)
|
{ while (TYPE_CODE (current_type) == TYPE_CODE_PTR)
|
current_type = TYPE_TARGET_TYPE (current_type);
|
current_type = TYPE_TARGET_TYPE (current_type);
|
current_type = lookup_struct_elt_type (
|
current_type = lookup_struct_elt_type (
|
current_type, $4.ptr, 0); };
|
current_type, $4.ptr, 0); };
|
} ;
|
} ;
|
exp : exp '['
|
exp : exp '['
|
/* We need to save the current_type value */
|
/* We need to save the current_type value */
|
{ char *arrayname;
|
{ char *arrayname;
|
int arrayfieldindex;
|
int arrayfieldindex;
|
arrayfieldindex = is_pascal_string_type (
|
arrayfieldindex = is_pascal_string_type (
|
current_type, NULL, NULL,
|
current_type, NULL, NULL,
|
NULL, NULL, &arrayname);
|
NULL, NULL, &arrayname);
|
if (arrayfieldindex)
|
if (arrayfieldindex)
|
{
|
{
|
struct stoken stringsval;
|
struct stoken stringsval;
|
stringsval.ptr = alloca (strlen (arrayname) + 1);
|
stringsval.ptr = alloca (strlen (arrayname) + 1);
|
stringsval.length = strlen (arrayname);
|
stringsval.length = strlen (arrayname);
|
strcpy (stringsval.ptr, arrayname);
|
strcpy (stringsval.ptr, arrayname);
|
current_type = TYPE_FIELD_TYPE (current_type,
|
current_type = TYPE_FIELD_TYPE (current_type,
|
arrayfieldindex - 1);
|
arrayfieldindex - 1);
|
write_exp_elt_opcode (STRUCTOP_STRUCT);
|
write_exp_elt_opcode (STRUCTOP_STRUCT);
|
write_exp_string (stringsval);
|
write_exp_string (stringsval);
|
write_exp_elt_opcode (STRUCTOP_STRUCT);
|
write_exp_elt_opcode (STRUCTOP_STRUCT);
|
}
|
}
|
push_current_type (); }
|
push_current_type (); }
|
exp1 ']'
|
exp1 ']'
|
{ pop_current_type ();
|
{ pop_current_type ();
|
write_exp_elt_opcode (BINOP_SUBSCRIPT);
|
write_exp_elt_opcode (BINOP_SUBSCRIPT);
|
if (current_type)
|
if (current_type)
|
current_type = TYPE_TARGET_TYPE (current_type); }
|
current_type = TYPE_TARGET_TYPE (current_type); }
|
;
|
;
|
|
|
exp : exp '('
|
exp : exp '('
|
/* This is to save the value of arglist_len
|
/* This is to save the value of arglist_len
|
being accumulated by an outer function call. */
|
being accumulated by an outer function call. */
|
{ push_current_type ();
|
{ push_current_type ();
|
start_arglist (); }
|
start_arglist (); }
|
arglist ')' %prec ARROW
|
arglist ')' %prec ARROW
|
{ write_exp_elt_opcode (OP_FUNCALL);
|
{ write_exp_elt_opcode (OP_FUNCALL);
|
write_exp_elt_longcst ((LONGEST) end_arglist ());
|
write_exp_elt_longcst ((LONGEST) end_arglist ());
|
write_exp_elt_opcode (OP_FUNCALL);
|
write_exp_elt_opcode (OP_FUNCALL);
|
pop_current_type ();
|
pop_current_type ();
|
if (current_type)
|
if (current_type)
|
current_type = TYPE_TARGET_TYPE (current_type);
|
current_type = TYPE_TARGET_TYPE (current_type);
|
}
|
}
|
;
|
;
|
|
|
arglist :
|
arglist :
|
| exp
|
| exp
|
{ arglist_len = 1; }
|
{ arglist_len = 1; }
|
| arglist ',' exp %prec ABOVE_COMMA
|
| arglist ',' exp %prec ABOVE_COMMA
|
{ arglist_len++; }
|
{ arglist_len++; }
|
;
|
;
|
|
|
exp : type '(' exp ')' %prec UNARY
|
exp : type '(' exp ')' %prec UNARY
|
{ if (current_type)
|
{ if (current_type)
|
{
|
{
|
/* Allow automatic dereference of classes. */
|
/* Allow automatic dereference of classes. */
|
if ((TYPE_CODE (current_type) == TYPE_CODE_PTR)
|
if ((TYPE_CODE (current_type) == TYPE_CODE_PTR)
|
&& (TYPE_CODE (TYPE_TARGET_TYPE (current_type)) == TYPE_CODE_CLASS)
|
&& (TYPE_CODE (TYPE_TARGET_TYPE (current_type)) == TYPE_CODE_CLASS)
|
&& (TYPE_CODE ($1) == TYPE_CODE_CLASS))
|
&& (TYPE_CODE ($1) == TYPE_CODE_CLASS))
|
write_exp_elt_opcode (UNOP_IND);
|
write_exp_elt_opcode (UNOP_IND);
|
}
|
}
|
write_exp_elt_opcode (UNOP_CAST);
|
write_exp_elt_opcode (UNOP_CAST);
|
write_exp_elt_type ($1);
|
write_exp_elt_type ($1);
|
write_exp_elt_opcode (UNOP_CAST);
|
write_exp_elt_opcode (UNOP_CAST);
|
current_type = $1; }
|
current_type = $1; }
|
;
|
;
|
|
|
exp : '(' exp1 ')'
|
exp : '(' exp1 ')'
|
{ }
|
{ }
|
;
|
;
|
|
|
/* Binary operators in order of decreasing precedence. */
|
/* Binary operators in order of decreasing precedence. */
|
|
|
exp : exp '*' exp
|
exp : exp '*' exp
|
{ write_exp_elt_opcode (BINOP_MUL); }
|
{ write_exp_elt_opcode (BINOP_MUL); }
|
;
|
;
|
|
|
exp : exp '/' {
|
exp : exp '/' {
|
if (current_type && is_integral_type (current_type))
|
if (current_type && is_integral_type (current_type))
|
leftdiv_is_integer = 1;
|
leftdiv_is_integer = 1;
|
}
|
}
|
exp
|
exp
|
{
|
{
|
if (leftdiv_is_integer && current_type
|
if (leftdiv_is_integer && current_type
|
&& is_integral_type (current_type))
|
&& is_integral_type (current_type))
|
{
|
{
|
write_exp_elt_opcode (UNOP_CAST);
|
write_exp_elt_opcode (UNOP_CAST);
|
write_exp_elt_type (builtin_type_long_double);
|
write_exp_elt_type (builtin_type_long_double);
|
current_type = builtin_type_long_double;
|
current_type = builtin_type_long_double;
|
write_exp_elt_opcode (UNOP_CAST);
|
write_exp_elt_opcode (UNOP_CAST);
|
leftdiv_is_integer = 0;
|
leftdiv_is_integer = 0;
|
}
|
}
|
|
|
write_exp_elt_opcode (BINOP_DIV);
|
write_exp_elt_opcode (BINOP_DIV);
|
}
|
}
|
;
|
;
|
|
|
exp : exp DIV exp
|
exp : exp DIV exp
|
{ write_exp_elt_opcode (BINOP_INTDIV); }
|
{ write_exp_elt_opcode (BINOP_INTDIV); }
|
;
|
;
|
|
|
exp : exp MOD exp
|
exp : exp MOD exp
|
{ write_exp_elt_opcode (BINOP_REM); }
|
{ write_exp_elt_opcode (BINOP_REM); }
|
;
|
;
|
|
|
exp : exp '+' exp
|
exp : exp '+' exp
|
{ write_exp_elt_opcode (BINOP_ADD); }
|
{ write_exp_elt_opcode (BINOP_ADD); }
|
;
|
;
|
|
|
exp : exp '-' exp
|
exp : exp '-' exp
|
{ write_exp_elt_opcode (BINOP_SUB); }
|
{ write_exp_elt_opcode (BINOP_SUB); }
|
;
|
;
|
|
|
exp : exp LSH exp
|
exp : exp LSH exp
|
{ write_exp_elt_opcode (BINOP_LSH); }
|
{ write_exp_elt_opcode (BINOP_LSH); }
|
;
|
;
|
|
|
exp : exp RSH exp
|
exp : exp RSH exp
|
{ write_exp_elt_opcode (BINOP_RSH); }
|
{ write_exp_elt_opcode (BINOP_RSH); }
|
;
|
;
|
|
|
exp : exp '=' exp
|
exp : exp '=' exp
|
{ write_exp_elt_opcode (BINOP_EQUAL);
|
{ write_exp_elt_opcode (BINOP_EQUAL);
|
current_type = builtin_type_bool;
|
current_type = builtin_type_bool;
|
}
|
}
|
;
|
;
|
|
|
exp : exp NOTEQUAL exp
|
exp : exp NOTEQUAL exp
|
{ write_exp_elt_opcode (BINOP_NOTEQUAL);
|
{ write_exp_elt_opcode (BINOP_NOTEQUAL);
|
current_type = builtin_type_bool;
|
current_type = builtin_type_bool;
|
}
|
}
|
;
|
;
|
|
|
exp : exp LEQ exp
|
exp : exp LEQ exp
|
{ write_exp_elt_opcode (BINOP_LEQ);
|
{ write_exp_elt_opcode (BINOP_LEQ);
|
current_type = builtin_type_bool;
|
current_type = builtin_type_bool;
|
}
|
}
|
;
|
;
|
|
|
exp : exp GEQ exp
|
exp : exp GEQ exp
|
{ write_exp_elt_opcode (BINOP_GEQ);
|
{ write_exp_elt_opcode (BINOP_GEQ);
|
current_type = builtin_type_bool;
|
current_type = builtin_type_bool;
|
}
|
}
|
;
|
;
|
|
|
exp : exp '<' exp
|
exp : exp '<' exp
|
{ write_exp_elt_opcode (BINOP_LESS);
|
{ write_exp_elt_opcode (BINOP_LESS);
|
current_type = builtin_type_bool;
|
current_type = builtin_type_bool;
|
}
|
}
|
;
|
;
|
|
|
exp : exp '>' exp
|
exp : exp '>' exp
|
{ write_exp_elt_opcode (BINOP_GTR);
|
{ write_exp_elt_opcode (BINOP_GTR);
|
current_type = builtin_type_bool;
|
current_type = builtin_type_bool;
|
}
|
}
|
;
|
;
|
|
|
exp : exp ANDAND exp
|
exp : exp ANDAND exp
|
{ write_exp_elt_opcode (BINOP_BITWISE_AND); }
|
{ write_exp_elt_opcode (BINOP_BITWISE_AND); }
|
;
|
;
|
|
|
exp : exp XOR exp
|
exp : exp XOR exp
|
{ write_exp_elt_opcode (BINOP_BITWISE_XOR); }
|
{ write_exp_elt_opcode (BINOP_BITWISE_XOR); }
|
;
|
;
|
|
|
exp : exp OR exp
|
exp : exp OR exp
|
{ write_exp_elt_opcode (BINOP_BITWISE_IOR); }
|
{ write_exp_elt_opcode (BINOP_BITWISE_IOR); }
|
;
|
;
|
|
|
exp : exp ASSIGN exp
|
exp : exp ASSIGN exp
|
{ write_exp_elt_opcode (BINOP_ASSIGN); }
|
{ write_exp_elt_opcode (BINOP_ASSIGN); }
|
;
|
;
|
|
|
exp : TRUEKEYWORD
|
exp : TRUEKEYWORD
|
{ write_exp_elt_opcode (OP_BOOL);
|
{ write_exp_elt_opcode (OP_BOOL);
|
write_exp_elt_longcst ((LONGEST) $1);
|
write_exp_elt_longcst ((LONGEST) $1);
|
current_type = builtin_type_bool;
|
current_type = builtin_type_bool;
|
write_exp_elt_opcode (OP_BOOL); }
|
write_exp_elt_opcode (OP_BOOL); }
|
;
|
;
|
|
|
exp : FALSEKEYWORD
|
exp : FALSEKEYWORD
|
{ write_exp_elt_opcode (OP_BOOL);
|
{ write_exp_elt_opcode (OP_BOOL);
|
write_exp_elt_longcst ((LONGEST) $1);
|
write_exp_elt_longcst ((LONGEST) $1);
|
current_type = builtin_type_bool;
|
current_type = builtin_type_bool;
|
write_exp_elt_opcode (OP_BOOL); }
|
write_exp_elt_opcode (OP_BOOL); }
|
;
|
;
|
|
|
exp : INT
|
exp : INT
|
{ write_exp_elt_opcode (OP_LONG);
|
{ write_exp_elt_opcode (OP_LONG);
|
write_exp_elt_type ($1.type);
|
write_exp_elt_type ($1.type);
|
current_type = $1.type;
|
current_type = $1.type;
|
write_exp_elt_longcst ((LONGEST)($1.val));
|
write_exp_elt_longcst ((LONGEST)($1.val));
|
write_exp_elt_opcode (OP_LONG); }
|
write_exp_elt_opcode (OP_LONG); }
|
;
|
;
|
|
|
exp : NAME_OR_INT
|
exp : NAME_OR_INT
|
{ YYSTYPE val;
|
{ YYSTYPE val;
|
parse_number ($1.stoken.ptr, $1.stoken.length, 0, &val);
|
parse_number ($1.stoken.ptr, $1.stoken.length, 0, &val);
|
write_exp_elt_opcode (OP_LONG);
|
write_exp_elt_opcode (OP_LONG);
|
write_exp_elt_type (val.typed_val_int.type);
|
write_exp_elt_type (val.typed_val_int.type);
|
current_type = val.typed_val_int.type;
|
current_type = val.typed_val_int.type;
|
write_exp_elt_longcst ((LONGEST)val.typed_val_int.val);
|
write_exp_elt_longcst ((LONGEST)val.typed_val_int.val);
|
write_exp_elt_opcode (OP_LONG);
|
write_exp_elt_opcode (OP_LONG);
|
}
|
}
|
;
|
;
|
|
|
|
|
exp : FLOAT
|
exp : FLOAT
|
{ write_exp_elt_opcode (OP_DOUBLE);
|
{ write_exp_elt_opcode (OP_DOUBLE);
|
write_exp_elt_type ($1.type);
|
write_exp_elt_type ($1.type);
|
current_type = $1.type;
|
current_type = $1.type;
|
write_exp_elt_dblcst ($1.dval);
|
write_exp_elt_dblcst ($1.dval);
|
write_exp_elt_opcode (OP_DOUBLE); }
|
write_exp_elt_opcode (OP_DOUBLE); }
|
;
|
;
|
|
|
exp : variable
|
exp : variable
|
;
|
;
|
|
|
exp : VARIABLE
|
exp : VARIABLE
|
/* Already written by write_dollar_variable. */
|
/* Already written by write_dollar_variable. */
|
;
|
;
|
|
|
exp : SIZEOF '(' type ')' %prec UNARY
|
exp : SIZEOF '(' type ')' %prec UNARY
|
{ write_exp_elt_opcode (OP_LONG);
|
{ write_exp_elt_opcode (OP_LONG);
|
write_exp_elt_type (builtin_type_int);
|
write_exp_elt_type (builtin_type_int);
|
CHECK_TYPEDEF ($3);
|
CHECK_TYPEDEF ($3);
|
write_exp_elt_longcst ((LONGEST) TYPE_LENGTH ($3));
|
write_exp_elt_longcst ((LONGEST) TYPE_LENGTH ($3));
|
write_exp_elt_opcode (OP_LONG); }
|
write_exp_elt_opcode (OP_LONG); }
|
;
|
;
|
|
|
exp : STRING
|
exp : STRING
|
{ /* C strings are converted into array constants with
|
{ /* C strings are converted into array constants with
|
an explicit null byte added at the end. Thus
|
an explicit null byte added at the end. Thus
|
the array upper bound is the string length.
|
the array upper bound is the string length.
|
There is no such thing in C as a completely empty
|
There is no such thing in C as a completely empty
|
string. */
|
string. */
|
char *sp = $1.ptr; int count = $1.length;
|
char *sp = $1.ptr; int count = $1.length;
|
while (count-- > 0)
|
while (count-- > 0)
|
{
|
{
|
write_exp_elt_opcode (OP_LONG);
|
write_exp_elt_opcode (OP_LONG);
|
write_exp_elt_type (builtin_type_char);
|
write_exp_elt_type (builtin_type_char);
|
write_exp_elt_longcst ((LONGEST)(*sp++));
|
write_exp_elt_longcst ((LONGEST)(*sp++));
|
write_exp_elt_opcode (OP_LONG);
|
write_exp_elt_opcode (OP_LONG);
|
}
|
}
|
write_exp_elt_opcode (OP_LONG);
|
write_exp_elt_opcode (OP_LONG);
|
write_exp_elt_type (builtin_type_char);
|
write_exp_elt_type (builtin_type_char);
|
write_exp_elt_longcst ((LONGEST)'\0');
|
write_exp_elt_longcst ((LONGEST)'\0');
|
write_exp_elt_opcode (OP_LONG);
|
write_exp_elt_opcode (OP_LONG);
|
write_exp_elt_opcode (OP_ARRAY);
|
write_exp_elt_opcode (OP_ARRAY);
|
write_exp_elt_longcst ((LONGEST) 0);
|
write_exp_elt_longcst ((LONGEST) 0);
|
write_exp_elt_longcst ((LONGEST) ($1.length));
|
write_exp_elt_longcst ((LONGEST) ($1.length));
|
write_exp_elt_opcode (OP_ARRAY); }
|
write_exp_elt_opcode (OP_ARRAY); }
|
;
|
;
|
|
|
/* Object pascal */
|
/* Object pascal */
|
exp : THIS
|
exp : THIS
|
{
|
{
|
struct value * this_val;
|
struct value * this_val;
|
struct type * this_type;
|
struct type * this_type;
|
write_exp_elt_opcode (OP_THIS);
|
write_exp_elt_opcode (OP_THIS);
|
write_exp_elt_opcode (OP_THIS);
|
write_exp_elt_opcode (OP_THIS);
|
/* we need type of this */
|
/* we need type of this */
|
this_val = value_of_this (0);
|
this_val = value_of_this (0);
|
if (this_val)
|
if (this_val)
|
this_type = value_type (this_val);
|
this_type = value_type (this_val);
|
else
|
else
|
this_type = NULL;
|
this_type = NULL;
|
if (this_type)
|
if (this_type)
|
{
|
{
|
if (TYPE_CODE (this_type) == TYPE_CODE_PTR)
|
if (TYPE_CODE (this_type) == TYPE_CODE_PTR)
|
{
|
{
|
this_type = TYPE_TARGET_TYPE (this_type);
|
this_type = TYPE_TARGET_TYPE (this_type);
|
write_exp_elt_opcode (UNOP_IND);
|
write_exp_elt_opcode (UNOP_IND);
|
}
|
}
|
}
|
}
|
|
|
current_type = this_type;
|
current_type = this_type;
|
}
|
}
|
;
|
;
|
|
|
/* end of object pascal. */
|
/* end of object pascal. */
|
|
|
block : BLOCKNAME
|
block : BLOCKNAME
|
{
|
{
|
if ($1.sym != 0)
|
if ($1.sym != 0)
|
$$ = SYMBOL_BLOCK_VALUE ($1.sym);
|
$$ = SYMBOL_BLOCK_VALUE ($1.sym);
|
else
|
else
|
{
|
{
|
struct symtab *tem =
|
struct symtab *tem =
|
lookup_symtab (copy_name ($1.stoken));
|
lookup_symtab (copy_name ($1.stoken));
|
if (tem)
|
if (tem)
|
$$ = BLOCKVECTOR_BLOCK (BLOCKVECTOR (tem), STATIC_BLOCK);
|
$$ = BLOCKVECTOR_BLOCK (BLOCKVECTOR (tem), STATIC_BLOCK);
|
else
|
else
|
error ("No file or function \"%s\".",
|
error ("No file or function \"%s\".",
|
copy_name ($1.stoken));
|
copy_name ($1.stoken));
|
}
|
}
|
}
|
}
|
;
|
;
|
|
|
block : block COLONCOLON name
|
block : block COLONCOLON name
|
{ struct symbol *tem
|
{ struct symbol *tem
|
= lookup_symbol (copy_name ($3), $1,
|
= lookup_symbol (copy_name ($3), $1,
|
VAR_DOMAIN, (int *) NULL,
|
VAR_DOMAIN, (int *) NULL,
|
(struct symtab **) NULL);
|
(struct symtab **) NULL);
|
if (!tem || SYMBOL_CLASS (tem) != LOC_BLOCK)
|
if (!tem || SYMBOL_CLASS (tem) != LOC_BLOCK)
|
error ("No function \"%s\" in specified context.",
|
error ("No function \"%s\" in specified context.",
|
copy_name ($3));
|
copy_name ($3));
|
$$ = SYMBOL_BLOCK_VALUE (tem); }
|
$$ = SYMBOL_BLOCK_VALUE (tem); }
|
;
|
;
|
|
|
variable: block COLONCOLON name
|
variable: block COLONCOLON name
|
{ struct symbol *sym;
|
{ struct symbol *sym;
|
sym = lookup_symbol (copy_name ($3), $1,
|
sym = lookup_symbol (copy_name ($3), $1,
|
VAR_DOMAIN, (int *) NULL,
|
VAR_DOMAIN, (int *) NULL,
|
(struct symtab **) NULL);
|
(struct symtab **) NULL);
|
if (sym == 0)
|
if (sym == 0)
|
error ("No symbol \"%s\" in specified context.",
|
error ("No symbol \"%s\" in specified context.",
|
copy_name ($3));
|
copy_name ($3));
|
|
|
write_exp_elt_opcode (OP_VAR_VALUE);
|
write_exp_elt_opcode (OP_VAR_VALUE);
|
/* block_found is set by lookup_symbol. */
|
/* block_found is set by lookup_symbol. */
|
write_exp_elt_block (block_found);
|
write_exp_elt_block (block_found);
|
write_exp_elt_sym (sym);
|
write_exp_elt_sym (sym);
|
write_exp_elt_opcode (OP_VAR_VALUE); }
|
write_exp_elt_opcode (OP_VAR_VALUE); }
|
;
|
;
|
|
|
qualified_name: typebase COLONCOLON name
|
qualified_name: typebase COLONCOLON name
|
{
|
{
|
struct type *type = $1;
|
struct type *type = $1;
|
if (TYPE_CODE (type) != TYPE_CODE_STRUCT
|
if (TYPE_CODE (type) != TYPE_CODE_STRUCT
|
&& TYPE_CODE (type) != TYPE_CODE_UNION)
|
&& TYPE_CODE (type) != TYPE_CODE_UNION)
|
error ("`%s' is not defined as an aggregate type.",
|
error ("`%s' is not defined as an aggregate type.",
|
TYPE_NAME (type));
|
TYPE_NAME (type));
|
|
|
write_exp_elt_opcode (OP_SCOPE);
|
write_exp_elt_opcode (OP_SCOPE);
|
write_exp_elt_type (type);
|
write_exp_elt_type (type);
|
write_exp_string ($3);
|
write_exp_string ($3);
|
write_exp_elt_opcode (OP_SCOPE);
|
write_exp_elt_opcode (OP_SCOPE);
|
}
|
}
|
;
|
;
|
|
|
variable: qualified_name
|
variable: qualified_name
|
| COLONCOLON name
|
| COLONCOLON name
|
{
|
{
|
char *name = copy_name ($2);
|
char *name = copy_name ($2);
|
struct symbol *sym;
|
struct symbol *sym;
|
struct minimal_symbol *msymbol;
|
struct minimal_symbol *msymbol;
|
|
|
sym =
|
sym =
|
lookup_symbol (name, (const struct block *) NULL,
|
lookup_symbol (name, (const struct block *) NULL,
|
VAR_DOMAIN, (int *) NULL,
|
VAR_DOMAIN, (int *) NULL,
|
(struct symtab **) NULL);
|
(struct symtab **) NULL);
|
if (sym)
|
if (sym)
|
{
|
{
|
write_exp_elt_opcode (OP_VAR_VALUE);
|
write_exp_elt_opcode (OP_VAR_VALUE);
|
write_exp_elt_block (NULL);
|
write_exp_elt_block (NULL);
|
write_exp_elt_sym (sym);
|
write_exp_elt_sym (sym);
|
write_exp_elt_opcode (OP_VAR_VALUE);
|
write_exp_elt_opcode (OP_VAR_VALUE);
|
break;
|
break;
|
}
|
}
|
|
|
msymbol = lookup_minimal_symbol (name, NULL, NULL);
|
msymbol = lookup_minimal_symbol (name, NULL, NULL);
|
if (msymbol != NULL)
|
if (msymbol != NULL)
|
{
|
{
|
write_exp_msymbol (msymbol,
|
write_exp_msymbol (msymbol,
|
lookup_function_type (builtin_type_int),
|
lookup_function_type (builtin_type_int),
|
builtin_type_int);
|
builtin_type_int);
|
}
|
}
|
else
|
else
|
if (!have_full_symbols () && !have_partial_symbols ())
|
if (!have_full_symbols () && !have_partial_symbols ())
|
error ("No symbol table is loaded. Use the \"file\" command.");
|
error ("No symbol table is loaded. Use the \"file\" command.");
|
else
|
else
|
error ("No symbol \"%s\" in current context.", name);
|
error ("No symbol \"%s\" in current context.", name);
|
}
|
}
|
;
|
;
|
|
|
variable: name_not_typename
|
variable: name_not_typename
|
{ struct symbol *sym = $1.sym;
|
{ struct symbol *sym = $1.sym;
|
|
|
if (sym)
|
if (sym)
|
{
|
{
|
if (symbol_read_needs_frame (sym))
|
if (symbol_read_needs_frame (sym))
|
{
|
{
|
if (innermost_block == 0
|
if (innermost_block == 0
|
|| contained_in (block_found,
|
|| contained_in (block_found,
|
innermost_block))
|
innermost_block))
|
innermost_block = block_found;
|
innermost_block = block_found;
|
}
|
}
|
|
|
write_exp_elt_opcode (OP_VAR_VALUE);
|
write_exp_elt_opcode (OP_VAR_VALUE);
|
/* We want to use the selected frame, not
|
/* We want to use the selected frame, not
|
another more inner frame which happens to
|
another more inner frame which happens to
|
be in the same block. */
|
be in the same block. */
|
write_exp_elt_block (NULL);
|
write_exp_elt_block (NULL);
|
write_exp_elt_sym (sym);
|
write_exp_elt_sym (sym);
|
write_exp_elt_opcode (OP_VAR_VALUE);
|
write_exp_elt_opcode (OP_VAR_VALUE);
|
current_type = sym->type; }
|
current_type = sym->type; }
|
else if ($1.is_a_field_of_this)
|
else if ($1.is_a_field_of_this)
|
{
|
{
|
struct value * this_val;
|
struct value * this_val;
|
struct type * this_type;
|
struct type * this_type;
|
/* Object pascal: it hangs off of `this'. Must
|
/* Object pascal: it hangs off of `this'. Must
|
not inadvertently convert from a method call
|
not inadvertently convert from a method call
|
to data ref. */
|
to data ref. */
|
if (innermost_block == 0
|
if (innermost_block == 0
|
|| contained_in (block_found,
|
|| contained_in (block_found,
|
innermost_block))
|
innermost_block))
|
innermost_block = block_found;
|
innermost_block = block_found;
|
write_exp_elt_opcode (OP_THIS);
|
write_exp_elt_opcode (OP_THIS);
|
write_exp_elt_opcode (OP_THIS);
|
write_exp_elt_opcode (OP_THIS);
|
write_exp_elt_opcode (STRUCTOP_PTR);
|
write_exp_elt_opcode (STRUCTOP_PTR);
|
write_exp_string ($1.stoken);
|
write_exp_string ($1.stoken);
|
write_exp_elt_opcode (STRUCTOP_PTR);
|
write_exp_elt_opcode (STRUCTOP_PTR);
|
/* we need type of this */
|
/* we need type of this */
|
this_val = value_of_this (0);
|
this_val = value_of_this (0);
|
if (this_val)
|
if (this_val)
|
this_type = value_type (this_val);
|
this_type = value_type (this_val);
|
else
|
else
|
this_type = NULL;
|
this_type = NULL;
|
if (this_type)
|
if (this_type)
|
current_type = lookup_struct_elt_type (
|
current_type = lookup_struct_elt_type (
|
this_type,
|
this_type,
|
copy_name ($1.stoken), 0);
|
copy_name ($1.stoken), 0);
|
else
|
else
|
current_type = NULL;
|
current_type = NULL;
|
}
|
}
|
else
|
else
|
{
|
{
|
struct minimal_symbol *msymbol;
|
struct minimal_symbol *msymbol;
|
char *arg = copy_name ($1.stoken);
|
char *arg = copy_name ($1.stoken);
|
|
|
msymbol =
|
msymbol =
|
lookup_minimal_symbol (arg, NULL, NULL);
|
lookup_minimal_symbol (arg, NULL, NULL);
|
if (msymbol != NULL)
|
if (msymbol != NULL)
|
{
|
{
|
write_exp_msymbol (msymbol,
|
write_exp_msymbol (msymbol,
|
lookup_function_type (builtin_type_int),
|
lookup_function_type (builtin_type_int),
|
builtin_type_int);
|
builtin_type_int);
|
}
|
}
|
else if (!have_full_symbols () && !have_partial_symbols ())
|
else if (!have_full_symbols () && !have_partial_symbols ())
|
error ("No symbol table is loaded. Use the \"file\" command.");
|
error ("No symbol table is loaded. Use the \"file\" command.");
|
else
|
else
|
error ("No symbol \"%s\" in current context.",
|
error ("No symbol \"%s\" in current context.",
|
copy_name ($1.stoken));
|
copy_name ($1.stoken));
|
}
|
}
|
}
|
}
|
;
|
;
|
|
|
|
|
ptype : typebase
|
ptype : typebase
|
;
|
;
|
|
|
/* We used to try to recognize more pointer to member types here, but
|
/* We used to try to recognize more pointer to member types here, but
|
that didn't work (shift/reduce conflicts meant that these rules never
|
that didn't work (shift/reduce conflicts meant that these rules never
|
got executed). The problem is that
|
got executed). The problem is that
|
int (foo::bar::baz::bizzle)
|
int (foo::bar::baz::bizzle)
|
is a function type but
|
is a function type but
|
int (foo::bar::baz::bizzle::*)
|
int (foo::bar::baz::bizzle::*)
|
is a pointer to member type. Stroustrup loses again! */
|
is a pointer to member type. Stroustrup loses again! */
|
|
|
type : ptype
|
type : ptype
|
;
|
;
|
|
|
typebase /* Implements (approximately): (type-qualifier)* type-specifier */
|
typebase /* Implements (approximately): (type-qualifier)* type-specifier */
|
: '^' typebase
|
: '^' typebase
|
{ $$ = lookup_pointer_type ($2); }
|
{ $$ = lookup_pointer_type ($2); }
|
| TYPENAME
|
| TYPENAME
|
{ $$ = $1.type; }
|
{ $$ = $1.type; }
|
| STRUCT name
|
| STRUCT name
|
{ $$ = lookup_struct (copy_name ($2),
|
{ $$ = lookup_struct (copy_name ($2),
|
expression_context_block); }
|
expression_context_block); }
|
| CLASS name
|
| CLASS name
|
{ $$ = lookup_struct (copy_name ($2),
|
{ $$ = lookup_struct (copy_name ($2),
|
expression_context_block); }
|
expression_context_block); }
|
/* "const" and "volatile" are curently ignored. A type qualifier
|
/* "const" and "volatile" are curently ignored. A type qualifier
|
after the type is handled in the ptype rule. I think these could
|
after the type is handled in the ptype rule. I think these could
|
be too. */
|
be too. */
|
;
|
;
|
|
|
name : NAME { $$ = $1.stoken; }
|
name : NAME { $$ = $1.stoken; }
|
| BLOCKNAME { $$ = $1.stoken; }
|
| BLOCKNAME { $$ = $1.stoken; }
|
| TYPENAME { $$ = $1.stoken; }
|
| TYPENAME { $$ = $1.stoken; }
|
| NAME_OR_INT { $$ = $1.stoken; }
|
| NAME_OR_INT { $$ = $1.stoken; }
|
;
|
;
|
|
|
name_not_typename : NAME
|
name_not_typename : NAME
|
| BLOCKNAME
|
| BLOCKNAME
|
/* These would be useful if name_not_typename was useful, but it is just
|
/* These would be useful if name_not_typename was useful, but it is just
|
a fake for "variable", so these cause reduce/reduce conflicts because
|
a fake for "variable", so these cause reduce/reduce conflicts because
|
the parser can't tell whether NAME_OR_INT is a name_not_typename (=variable,
|
the parser can't tell whether NAME_OR_INT is a name_not_typename (=variable,
|
=exp) or just an exp. If name_not_typename was ever used in an lvalue
|
=exp) or just an exp. If name_not_typename was ever used in an lvalue
|
context where only a name could occur, this might be useful.
|
context where only a name could occur, this might be useful.
|
| NAME_OR_INT
|
| NAME_OR_INT
|
*/
|
*/
|
;
|
;
|
|
|
%%
|
%%
|
|
|
/* Take care of parsing a number (anything that starts with a digit).
|
/* Take care of parsing a number (anything that starts with a digit).
|
Set yylval and return the token type; update lexptr.
|
Set yylval and return the token type; update lexptr.
|
LEN is the number of characters in it. */
|
LEN is the number of characters in it. */
|
|
|
/*** Needs some error checking for the float case ***/
|
/*** Needs some error checking for the float case ***/
|
|
|
static int
|
static int
|
parse_number (p, len, parsed_float, putithere)
|
parse_number (p, len, parsed_float, putithere)
|
char *p;
|
char *p;
|
int len;
|
int len;
|
int parsed_float;
|
int parsed_float;
|
YYSTYPE *putithere;
|
YYSTYPE *putithere;
|
{
|
{
|
/* FIXME: Shouldn't these be unsigned? We don't deal with negative values
|
/* FIXME: Shouldn't these be unsigned? We don't deal with negative values
|
here, and we do kind of silly things like cast to unsigned. */
|
here, and we do kind of silly things like cast to unsigned. */
|
LONGEST n = 0;
|
LONGEST n = 0;
|
LONGEST prevn = 0;
|
LONGEST prevn = 0;
|
ULONGEST un;
|
ULONGEST un;
|
|
|
int i = 0;
|
int i = 0;
|
int c;
|
int c;
|
int base = input_radix;
|
int base = input_radix;
|
int unsigned_p = 0;
|
int unsigned_p = 0;
|
|
|
/* Number of "L" suffixes encountered. */
|
/* Number of "L" suffixes encountered. */
|
int long_p = 0;
|
int long_p = 0;
|
|
|
/* We have found a "L" or "U" suffix. */
|
/* We have found a "L" or "U" suffix. */
|
int found_suffix = 0;
|
int found_suffix = 0;
|
|
|
ULONGEST high_bit;
|
ULONGEST high_bit;
|
struct type *signed_type;
|
struct type *signed_type;
|
struct type *unsigned_type;
|
struct type *unsigned_type;
|
|
|
if (parsed_float)
|
if (parsed_float)
|
{
|
{
|
/* It's a float since it contains a point or an exponent. */
|
/* It's a float since it contains a point or an exponent. */
|
char c;
|
char c;
|
int num = 0; /* number of tokens scanned by scanf */
|
int num = 0; /* number of tokens scanned by scanf */
|
char saved_char = p[len];
|
char saved_char = p[len];
|
|
|
p[len] = 0; /* null-terminate the token */
|
p[len] = 0; /* null-terminate the token */
|
num = sscanf (p, "%" DOUBLEST_SCAN_FORMAT "%c",
|
num = sscanf (p, "%" DOUBLEST_SCAN_FORMAT "%c",
|
&putithere->typed_val_float.dval, &c);
|
&putithere->typed_val_float.dval, &c);
|
p[len] = saved_char; /* restore the input stream */
|
p[len] = saved_char; /* restore the input stream */
|
if (num != 1) /* check scanf found ONLY a float ... */
|
if (num != 1) /* check scanf found ONLY a float ... */
|
return ERROR;
|
return ERROR;
|
/* See if it has `f' or `l' suffix (float or long double). */
|
/* See if it has `f' or `l' suffix (float or long double). */
|
|
|
c = tolower (p[len - 1]);
|
c = tolower (p[len - 1]);
|
|
|
if (c == 'f')
|
if (c == 'f')
|
putithere->typed_val_float.type = builtin_type_float;
|
putithere->typed_val_float.type = builtin_type_float;
|
else if (c == 'l')
|
else if (c == 'l')
|
putithere->typed_val_float.type = builtin_type_long_double;
|
putithere->typed_val_float.type = builtin_type_long_double;
|
else if (isdigit (c) || c == '.')
|
else if (isdigit (c) || c == '.')
|
putithere->typed_val_float.type = builtin_type_double;
|
putithere->typed_val_float.type = builtin_type_double;
|
else
|
else
|
return ERROR;
|
return ERROR;
|
|
|
return FLOAT;
|
return FLOAT;
|
}
|
}
|
|
|
/* Handle base-switching prefixes 0x, 0t, 0d, 0 */
|
/* Handle base-switching prefixes 0x, 0t, 0d, 0 */
|
if (p[0] == '0')
|
if (p[0] == '0')
|
switch (p[1])
|
switch (p[1])
|
{
|
{
|
case 'x':
|
case 'x':
|
case 'X':
|
case 'X':
|
if (len >= 3)
|
if (len >= 3)
|
{
|
{
|
p += 2;
|
p += 2;
|
base = 16;
|
base = 16;
|
len -= 2;
|
len -= 2;
|
}
|
}
|
break;
|
break;
|
|
|
case 't':
|
case 't':
|
case 'T':
|
case 'T':
|
case 'd':
|
case 'd':
|
case 'D':
|
case 'D':
|
if (len >= 3)
|
if (len >= 3)
|
{
|
{
|
p += 2;
|
p += 2;
|
base = 10;
|
base = 10;
|
len -= 2;
|
len -= 2;
|
}
|
}
|
break;
|
break;
|
|
|
default:
|
default:
|
base = 8;
|
base = 8;
|
break;
|
break;
|
}
|
}
|
|
|
while (len-- > 0)
|
while (len-- > 0)
|
{
|
{
|
c = *p++;
|
c = *p++;
|
if (c >= 'A' && c <= 'Z')
|
if (c >= 'A' && c <= 'Z')
|
c += 'a' - 'A';
|
c += 'a' - 'A';
|
if (c != 'l' && c != 'u')
|
if (c != 'l' && c != 'u')
|
n *= base;
|
n *= base;
|
if (c >= '0' && c <= '9')
|
if (c >= '0' && c <= '9')
|
{
|
{
|
if (found_suffix)
|
if (found_suffix)
|
return ERROR;
|
return ERROR;
|
n += i = c - '0';
|
n += i = c - '0';
|
}
|
}
|
else
|
else
|
{
|
{
|
if (base > 10 && c >= 'a' && c <= 'f')
|
if (base > 10 && c >= 'a' && c <= 'f')
|
{
|
{
|
if (found_suffix)
|
if (found_suffix)
|
return ERROR;
|
return ERROR;
|
n += i = c - 'a' + 10;
|
n += i = c - 'a' + 10;
|
}
|
}
|
else if (c == 'l')
|
else if (c == 'l')
|
{
|
{
|
++long_p;
|
++long_p;
|
found_suffix = 1;
|
found_suffix = 1;
|
}
|
}
|
else if (c == 'u')
|
else if (c == 'u')
|
{
|
{
|
unsigned_p = 1;
|
unsigned_p = 1;
|
found_suffix = 1;
|
found_suffix = 1;
|
}
|
}
|
else
|
else
|
return ERROR; /* Char not a digit */
|
return ERROR; /* Char not a digit */
|
}
|
}
|
if (i >= base)
|
if (i >= base)
|
return ERROR; /* Invalid digit in this base */
|
return ERROR; /* Invalid digit in this base */
|
|
|
/* Portably test for overflow (only works for nonzero values, so make
|
/* Portably test for overflow (only works for nonzero values, so make
|
a second check for zero). FIXME: Can't we just make n and prevn
|
a second check for zero). FIXME: Can't we just make n and prevn
|
unsigned and avoid this? */
|
unsigned and avoid this? */
|
if (c != 'l' && c != 'u' && (prevn >= n) && n != 0)
|
if (c != 'l' && c != 'u' && (prevn >= n) && n != 0)
|
unsigned_p = 1; /* Try something unsigned */
|
unsigned_p = 1; /* Try something unsigned */
|
|
|
/* Portably test for unsigned overflow.
|
/* Portably test for unsigned overflow.
|
FIXME: This check is wrong; for example it doesn't find overflow
|
FIXME: This check is wrong; for example it doesn't find overflow
|
on 0x123456789 when LONGEST is 32 bits. */
|
on 0x123456789 when LONGEST is 32 bits. */
|
if (c != 'l' && c != 'u' && n != 0)
|
if (c != 'l' && c != 'u' && n != 0)
|
{
|
{
|
if ((unsigned_p && (ULONGEST) prevn >= (ULONGEST) n))
|
if ((unsigned_p && (ULONGEST) prevn >= (ULONGEST) n))
|
error ("Numeric constant too large.");
|
error ("Numeric constant too large.");
|
}
|
}
|
prevn = n;
|
prevn = n;
|
}
|
}
|
|
|
/* An integer constant is an int, a long, or a long long. An L
|
/* An integer constant is an int, a long, or a long long. An L
|
suffix forces it to be long; an LL suffix forces it to be long
|
suffix forces it to be long; an LL suffix forces it to be long
|
long. If not forced to a larger size, it gets the first type of
|
long. If not forced to a larger size, it gets the first type of
|
the above that it fits in. To figure out whether it fits, we
|
the above that it fits in. To figure out whether it fits, we
|
shift it right and see whether anything remains. Note that we
|
shift it right and see whether anything remains. Note that we
|
can't shift sizeof (LONGEST) * HOST_CHAR_BIT bits or more in one
|
can't shift sizeof (LONGEST) * HOST_CHAR_BIT bits or more in one
|
operation, because many compilers will warn about such a shift
|
operation, because many compilers will warn about such a shift
|
(which always produces a zero result). Sometimes gdbarch_int_bit
|
(which always produces a zero result). Sometimes gdbarch_int_bit
|
or gdbarch_long_bit will be that big, sometimes not. To deal with
|
or gdbarch_long_bit will be that big, sometimes not. To deal with
|
the case where it is we just always shift the value more than
|
the case where it is we just always shift the value more than
|
once, with fewer bits each time. */
|
once, with fewer bits each time. */
|
|
|
un = (ULONGEST)n >> 2;
|
un = (ULONGEST)n >> 2;
|
if (long_p == 0
|
if (long_p == 0
|
&& (un >> (gdbarch_int_bit (current_gdbarch) - 2)) == 0)
|
&& (un >> (gdbarch_int_bit (current_gdbarch) - 2)) == 0)
|
{
|
{
|
high_bit = ((ULONGEST)1) << (gdbarch_int_bit (current_gdbarch) - 1);
|
high_bit = ((ULONGEST)1) << (gdbarch_int_bit (current_gdbarch) - 1);
|
|
|
/* A large decimal (not hex or octal) constant (between INT_MAX
|
/* A large decimal (not hex or octal) constant (between INT_MAX
|
and UINT_MAX) is a long or unsigned long, according to ANSI,
|
and UINT_MAX) is a long or unsigned long, according to ANSI,
|
never an unsigned int, but this code treats it as unsigned
|
never an unsigned int, but this code treats it as unsigned
|
int. This probably should be fixed. GCC gives a warning on
|
int. This probably should be fixed. GCC gives a warning on
|
such constants. */
|
such constants. */
|
|
|
unsigned_type = builtin_type_unsigned_int;
|
unsigned_type = builtin_type_unsigned_int;
|
signed_type = builtin_type_int;
|
signed_type = builtin_type_int;
|
}
|
}
|
else if (long_p <= 1
|
else if (long_p <= 1
|
&& (un >> (gdbarch_long_bit (current_gdbarch) - 2)) == 0)
|
&& (un >> (gdbarch_long_bit (current_gdbarch) - 2)) == 0)
|
{
|
{
|
high_bit = ((ULONGEST)1) << (gdbarch_long_bit (current_gdbarch) - 1);
|
high_bit = ((ULONGEST)1) << (gdbarch_long_bit (current_gdbarch) - 1);
|
unsigned_type = builtin_type_unsigned_long;
|
unsigned_type = builtin_type_unsigned_long;
|
signed_type = builtin_type_long;
|
signed_type = builtin_type_long;
|
}
|
}
|
else
|
else
|
{
|
{
|
int shift;
|
int shift;
|
if (sizeof (ULONGEST) * HOST_CHAR_BIT
|
if (sizeof (ULONGEST) * HOST_CHAR_BIT
|
< gdbarch_long_long_bit (current_gdbarch))
|
< gdbarch_long_long_bit (current_gdbarch))
|
/* A long long does not fit in a LONGEST. */
|
/* A long long does not fit in a LONGEST. */
|
shift = (sizeof (ULONGEST) * HOST_CHAR_BIT - 1);
|
shift = (sizeof (ULONGEST) * HOST_CHAR_BIT - 1);
|
else
|
else
|
shift = (gdbarch_long_long_bit (current_gdbarch) - 1);
|
shift = (gdbarch_long_long_bit (current_gdbarch) - 1);
|
high_bit = (ULONGEST) 1 << shift;
|
high_bit = (ULONGEST) 1 << shift;
|
unsigned_type = builtin_type_unsigned_long_long;
|
unsigned_type = builtin_type_unsigned_long_long;
|
signed_type = builtin_type_long_long;
|
signed_type = builtin_type_long_long;
|
}
|
}
|
|
|
putithere->typed_val_int.val = n;
|
putithere->typed_val_int.val = n;
|
|
|
/* If the high bit of the worked out type is set then this number
|
/* If the high bit of the worked out type is set then this number
|
has to be unsigned. */
|
has to be unsigned. */
|
|
|
if (unsigned_p || (n & high_bit))
|
if (unsigned_p || (n & high_bit))
|
{
|
{
|
putithere->typed_val_int.type = unsigned_type;
|
putithere->typed_val_int.type = unsigned_type;
|
}
|
}
|
else
|
else
|
{
|
{
|
putithere->typed_val_int.type = signed_type;
|
putithere->typed_val_int.type = signed_type;
|
}
|
}
|
|
|
return INT;
|
return INT;
|
}
|
}
|
|
|
|
|
struct type_push
|
struct type_push
|
{
|
{
|
struct type *stored;
|
struct type *stored;
|
struct type_push *next;
|
struct type_push *next;
|
};
|
};
|
|
|
static struct type_push *tp_top = NULL;
|
static struct type_push *tp_top = NULL;
|
|
|
static void
|
static void
|
push_current_type (void)
|
push_current_type (void)
|
{
|
{
|
struct type_push *tpnew;
|
struct type_push *tpnew;
|
tpnew = (struct type_push *) malloc (sizeof (struct type_push));
|
tpnew = (struct type_push *) malloc (sizeof (struct type_push));
|
tpnew->next = tp_top;
|
tpnew->next = tp_top;
|
tpnew->stored = current_type;
|
tpnew->stored = current_type;
|
current_type = NULL;
|
current_type = NULL;
|
tp_top = tpnew;
|
tp_top = tpnew;
|
}
|
}
|
|
|
static void
|
static void
|
pop_current_type (void)
|
pop_current_type (void)
|
{
|
{
|
struct type_push *tp = tp_top;
|
struct type_push *tp = tp_top;
|
if (tp)
|
if (tp)
|
{
|
{
|
current_type = tp->stored;
|
current_type = tp->stored;
|
tp_top = tp->next;
|
tp_top = tp->next;
|
xfree (tp);
|
xfree (tp);
|
}
|
}
|
}
|
}
|
|
|
struct token
|
struct token
|
{
|
{
|
char *operator;
|
char *operator;
|
int token;
|
int token;
|
enum exp_opcode opcode;
|
enum exp_opcode opcode;
|
};
|
};
|
|
|
static const struct token tokentab3[] =
|
static const struct token tokentab3[] =
|
{
|
{
|
{"shr", RSH, BINOP_END},
|
{"shr", RSH, BINOP_END},
|
{"shl", LSH, BINOP_END},
|
{"shl", LSH, BINOP_END},
|
{"and", ANDAND, BINOP_END},
|
{"and", ANDAND, BINOP_END},
|
{"div", DIV, BINOP_END},
|
{"div", DIV, BINOP_END},
|
{"not", NOT, BINOP_END},
|
{"not", NOT, BINOP_END},
|
{"mod", MOD, BINOP_END},
|
{"mod", MOD, BINOP_END},
|
{"inc", INCREMENT, BINOP_END},
|
{"inc", INCREMENT, BINOP_END},
|
{"dec", DECREMENT, BINOP_END},
|
{"dec", DECREMENT, BINOP_END},
|
{"xor", XOR, BINOP_END}
|
{"xor", XOR, BINOP_END}
|
};
|
};
|
|
|
static const struct token tokentab2[] =
|
static const struct token tokentab2[] =
|
{
|
{
|
{"or", OR, BINOP_END},
|
{"or", OR, BINOP_END},
|
{"<>", NOTEQUAL, BINOP_END},
|
{"<>", NOTEQUAL, BINOP_END},
|
{"<=", LEQ, BINOP_END},
|
{"<=", LEQ, BINOP_END},
|
{">=", GEQ, BINOP_END},
|
{">=", GEQ, BINOP_END},
|
{":=", ASSIGN, BINOP_END},
|
{":=", ASSIGN, BINOP_END},
|
{"::", COLONCOLON, BINOP_END} };
|
{"::", COLONCOLON, BINOP_END} };
|
|
|
/* Allocate uppercased var */
|
/* Allocate uppercased var */
|
/* make an uppercased copy of tokstart */
|
/* make an uppercased copy of tokstart */
|
static char * uptok (tokstart, namelen)
|
static char * uptok (tokstart, namelen)
|
char *tokstart;
|
char *tokstart;
|
int namelen;
|
int namelen;
|
{
|
{
|
int i;
|
int i;
|
char *uptokstart = (char *)malloc(namelen+1);
|
char *uptokstart = (char *)malloc(namelen+1);
|
for (i = 0;i <= namelen;i++)
|
for (i = 0;i <= namelen;i++)
|
{
|
{
|
if ((tokstart[i]>='a' && tokstart[i]<='z'))
|
if ((tokstart[i]>='a' && tokstart[i]<='z'))
|
uptokstart[i] = tokstart[i]-('a'-'A');
|
uptokstart[i] = tokstart[i]-('a'-'A');
|
else
|
else
|
uptokstart[i] = tokstart[i];
|
uptokstart[i] = tokstart[i];
|
}
|
}
|
uptokstart[namelen]='\0';
|
uptokstart[namelen]='\0';
|
return uptokstart;
|
return uptokstart;
|
}
|
}
|
/* Read one token, getting characters through lexptr. */
|
/* Read one token, getting characters through lexptr. */
|
|
|
|
|
static int
|
static int
|
yylex ()
|
yylex ()
|
{
|
{
|
int c;
|
int c;
|
int namelen;
|
int namelen;
|
unsigned int i;
|
unsigned int i;
|
char *tokstart;
|
char *tokstart;
|
char *uptokstart;
|
char *uptokstart;
|
char *tokptr;
|
char *tokptr;
|
char *p;
|
char *p;
|
int explen, tempbufindex;
|
int explen, tempbufindex;
|
static char *tempbuf;
|
static char *tempbuf;
|
static int tempbufsize;
|
static int tempbufsize;
|
|
|
retry:
|
retry:
|
|
|
prev_lexptr = lexptr;
|
prev_lexptr = lexptr;
|
|
|
tokstart = lexptr;
|
tokstart = lexptr;
|
explen = strlen (lexptr);
|
explen = strlen (lexptr);
|
/* See if it is a special token of length 3. */
|
/* See if it is a special token of length 3. */
|
if (explen > 2)
|
if (explen > 2)
|
for (i = 0; i < sizeof (tokentab3) / sizeof (tokentab3[0]); i++)
|
for (i = 0; i < sizeof (tokentab3) / sizeof (tokentab3[0]); i++)
|
if (strncasecmp (tokstart, tokentab3[i].operator, 3) == 0
|
if (strncasecmp (tokstart, tokentab3[i].operator, 3) == 0
|
&& (!isalpha (tokentab3[i].operator[0]) || explen == 3
|
&& (!isalpha (tokentab3[i].operator[0]) || explen == 3
|
|| (!isalpha (tokstart[3]) && !isdigit (tokstart[3]) && tokstart[3] != '_')))
|
|| (!isalpha (tokstart[3]) && !isdigit (tokstart[3]) && tokstart[3] != '_')))
|
{
|
{
|
lexptr += 3;
|
lexptr += 3;
|
yylval.opcode = tokentab3[i].opcode;
|
yylval.opcode = tokentab3[i].opcode;
|
return tokentab3[i].token;
|
return tokentab3[i].token;
|
}
|
}
|
|
|
/* See if it is a special token of length 2. */
|
/* See if it is a special token of length 2. */
|
if (explen > 1)
|
if (explen > 1)
|
for (i = 0; i < sizeof (tokentab2) / sizeof (tokentab2[0]); i++)
|
for (i = 0; i < sizeof (tokentab2) / sizeof (tokentab2[0]); i++)
|
if (strncasecmp (tokstart, tokentab2[i].operator, 2) == 0
|
if (strncasecmp (tokstart, tokentab2[i].operator, 2) == 0
|
&& (!isalpha (tokentab2[i].operator[0]) || explen == 2
|
&& (!isalpha (tokentab2[i].operator[0]) || explen == 2
|
|| (!isalpha (tokstart[2]) && !isdigit (tokstart[2]) && tokstart[2] != '_')))
|
|| (!isalpha (tokstart[2]) && !isdigit (tokstart[2]) && tokstart[2] != '_')))
|
{
|
{
|
lexptr += 2;
|
lexptr += 2;
|
yylval.opcode = tokentab2[i].opcode;
|
yylval.opcode = tokentab2[i].opcode;
|
return tokentab2[i].token;
|
return tokentab2[i].token;
|
}
|
}
|
|
|
switch (c = *tokstart)
|
switch (c = *tokstart)
|
{
|
{
|
case 0:
|
case 0:
|
return 0;
|
return 0;
|
|
|
case ' ':
|
case ' ':
|
case '\t':
|
case '\t':
|
case '\n':
|
case '\n':
|
lexptr++;
|
lexptr++;
|
goto retry;
|
goto retry;
|
|
|
case '\'':
|
case '\'':
|
/* We either have a character constant ('0' or '\177' for example)
|
/* We either have a character constant ('0' or '\177' for example)
|
or we have a quoted symbol reference ('foo(int,int)' in object pascal
|
or we have a quoted symbol reference ('foo(int,int)' in object pascal
|
for example). */
|
for example). */
|
lexptr++;
|
lexptr++;
|
c = *lexptr++;
|
c = *lexptr++;
|
if (c == '\\')
|
if (c == '\\')
|
c = parse_escape (&lexptr);
|
c = parse_escape (&lexptr);
|
else if (c == '\'')
|
else if (c == '\'')
|
error ("Empty character constant.");
|
error ("Empty character constant.");
|
|
|
yylval.typed_val_int.val = c;
|
yylval.typed_val_int.val = c;
|
yylval.typed_val_int.type = builtin_type_char;
|
yylval.typed_val_int.type = builtin_type_char;
|
|
|
c = *lexptr++;
|
c = *lexptr++;
|
if (c != '\'')
|
if (c != '\'')
|
{
|
{
|
namelen = skip_quoted (tokstart) - tokstart;
|
namelen = skip_quoted (tokstart) - tokstart;
|
if (namelen > 2)
|
if (namelen > 2)
|
{
|
{
|
lexptr = tokstart + namelen;
|
lexptr = tokstart + namelen;
|
if (lexptr[-1] != '\'')
|
if (lexptr[-1] != '\'')
|
error ("Unmatched single quote.");
|
error ("Unmatched single quote.");
|
namelen -= 2;
|
namelen -= 2;
|
tokstart++;
|
tokstart++;
|
uptokstart = uptok(tokstart,namelen);
|
uptokstart = uptok(tokstart,namelen);
|
goto tryname;
|
goto tryname;
|
}
|
}
|
error ("Invalid character constant.");
|
error ("Invalid character constant.");
|
}
|
}
|
return INT;
|
return INT;
|
|
|
case '(':
|
case '(':
|
paren_depth++;
|
paren_depth++;
|
lexptr++;
|
lexptr++;
|
return c;
|
return c;
|
|
|
case ')':
|
case ')':
|
if (paren_depth == 0)
|
if (paren_depth == 0)
|
return 0;
|
return 0;
|
paren_depth--;
|
paren_depth--;
|
lexptr++;
|
lexptr++;
|
return c;
|
return c;
|
|
|
case ',':
|
case ',':
|
if (comma_terminates && paren_depth == 0)
|
if (comma_terminates && paren_depth == 0)
|
return 0;
|
return 0;
|
lexptr++;
|
lexptr++;
|
return c;
|
return c;
|
|
|
case '.':
|
case '.':
|
/* Might be a floating point number. */
|
/* Might be a floating point number. */
|
if (lexptr[1] < '0' || lexptr[1] > '9')
|
if (lexptr[1] < '0' || lexptr[1] > '9')
|
goto symbol; /* Nope, must be a symbol. */
|
goto symbol; /* Nope, must be a symbol. */
|
/* FALL THRU into number case. */
|
/* FALL THRU into number case. */
|
|
|
case '0':
|
case '0':
|
case '1':
|
case '1':
|
case '2':
|
case '2':
|
case '3':
|
case '3':
|
case '4':
|
case '4':
|
case '5':
|
case '5':
|
case '6':
|
case '6':
|
case '7':
|
case '7':
|
case '8':
|
case '8':
|
case '9':
|
case '9':
|
{
|
{
|
/* It's a number. */
|
/* It's a number. */
|
int got_dot = 0, got_e = 0, toktype;
|
int got_dot = 0, got_e = 0, toktype;
|
char *p = tokstart;
|
char *p = tokstart;
|
int hex = input_radix > 10;
|
int hex = input_radix > 10;
|
|
|
if (c == '0' && (p[1] == 'x' || p[1] == 'X'))
|
if (c == '0' && (p[1] == 'x' || p[1] == 'X'))
|
{
|
{
|
p += 2;
|
p += 2;
|
hex = 1;
|
hex = 1;
|
}
|
}
|
else if (c == '0' && (p[1]=='t' || p[1]=='T' || p[1]=='d' || p[1]=='D'))
|
else if (c == '0' && (p[1]=='t' || p[1]=='T' || p[1]=='d' || p[1]=='D'))
|
{
|
{
|
p += 2;
|
p += 2;
|
hex = 0;
|
hex = 0;
|
}
|
}
|
|
|
for (;; ++p)
|
for (;; ++p)
|
{
|
{
|
/* This test includes !hex because 'e' is a valid hex digit
|
/* This test includes !hex because 'e' is a valid hex digit
|
and thus does not indicate a floating point number when
|
and thus does not indicate a floating point number when
|
the radix is hex. */
|
the radix is hex. */
|
if (!hex && !got_e && (*p == 'e' || *p == 'E'))
|
if (!hex && !got_e && (*p == 'e' || *p == 'E'))
|
got_dot = got_e = 1;
|
got_dot = got_e = 1;
|
/* This test does not include !hex, because a '.' always indicates
|
/* This test does not include !hex, because a '.' always indicates
|
a decimal floating point number regardless of the radix. */
|
a decimal floating point number regardless of the radix. */
|
else if (!got_dot && *p == '.')
|
else if (!got_dot && *p == '.')
|
got_dot = 1;
|
got_dot = 1;
|
else if (got_e && (p[-1] == 'e' || p[-1] == 'E')
|
else if (got_e && (p[-1] == 'e' || p[-1] == 'E')
|
&& (*p == '-' || *p == '+'))
|
&& (*p == '-' || *p == '+'))
|
/* This is the sign of the exponent, not the end of the
|
/* This is the sign of the exponent, not the end of the
|
number. */
|
number. */
|
continue;
|
continue;
|
/* We will take any letters or digits. parse_number will
|
/* We will take any letters or digits. parse_number will
|
complain if past the radix, or if L or U are not final. */
|
complain if past the radix, or if L or U are not final. */
|
else if ((*p < '0' || *p > '9')
|
else if ((*p < '0' || *p > '9')
|
&& ((*p < 'a' || *p > 'z')
|
&& ((*p < 'a' || *p > 'z')
|
&& (*p < 'A' || *p > 'Z')))
|
&& (*p < 'A' || *p > 'Z')))
|
break;
|
break;
|
}
|
}
|
toktype = parse_number (tokstart, p - tokstart, got_dot|got_e, &yylval);
|
toktype = parse_number (tokstart, p - tokstart, got_dot|got_e, &yylval);
|
if (toktype == ERROR)
|
if (toktype == ERROR)
|
{
|
{
|
char *err_copy = (char *) alloca (p - tokstart + 1);
|
char *err_copy = (char *) alloca (p - tokstart + 1);
|
|
|
memcpy (err_copy, tokstart, p - tokstart);
|
memcpy (err_copy, tokstart, p - tokstart);
|
err_copy[p - tokstart] = 0;
|
err_copy[p - tokstart] = 0;
|
error ("Invalid number \"%s\".", err_copy);
|
error ("Invalid number \"%s\".", err_copy);
|
}
|
}
|
lexptr = p;
|
lexptr = p;
|
return toktype;
|
return toktype;
|
}
|
}
|
|
|
case '+':
|
case '+':
|
case '-':
|
case '-':
|
case '*':
|
case '*':
|
case '/':
|
case '/':
|
case '|':
|
case '|':
|
case '&':
|
case '&':
|
case '^':
|
case '^':
|
case '~':
|
case '~':
|
case '!':
|
case '!':
|
case '@':
|
case '@':
|
case '<':
|
case '<':
|
case '>':
|
case '>':
|
case '[':
|
case '[':
|
case ']':
|
case ']':
|
case '?':
|
case '?':
|
case ':':
|
case ':':
|
case '=':
|
case '=':
|
case '{':
|
case '{':
|
case '}':
|
case '}':
|
symbol:
|
symbol:
|
lexptr++;
|
lexptr++;
|
return c;
|
return c;
|
|
|
case '"':
|
case '"':
|
|
|
/* Build the gdb internal form of the input string in tempbuf,
|
/* Build the gdb internal form of the input string in tempbuf,
|
translating any standard C escape forms seen. Note that the
|
translating any standard C escape forms seen. Note that the
|
buffer is null byte terminated *only* for the convenience of
|
buffer is null byte terminated *only* for the convenience of
|
debugging gdb itself and printing the buffer contents when
|
debugging gdb itself and printing the buffer contents when
|
the buffer contains no embedded nulls. Gdb does not depend
|
the buffer contains no embedded nulls. Gdb does not depend
|
upon the buffer being null byte terminated, it uses the length
|
upon the buffer being null byte terminated, it uses the length
|
string instead. This allows gdb to handle C strings (as well
|
string instead. This allows gdb to handle C strings (as well
|
as strings in other languages) with embedded null bytes */
|
as strings in other languages) with embedded null bytes */
|
|
|
tokptr = ++tokstart;
|
tokptr = ++tokstart;
|
tempbufindex = 0;
|
tempbufindex = 0;
|
|
|
do {
|
do {
|
/* Grow the static temp buffer if necessary, including allocating
|
/* Grow the static temp buffer if necessary, including allocating
|
the first one on demand. */
|
the first one on demand. */
|
if (tempbufindex + 1 >= tempbufsize)
|
if (tempbufindex + 1 >= tempbufsize)
|
{
|
{
|
tempbuf = (char *) realloc (tempbuf, tempbufsize += 64);
|
tempbuf = (char *) realloc (tempbuf, tempbufsize += 64);
|
}
|
}
|
|
|
switch (*tokptr)
|
switch (*tokptr)
|
{
|
{
|
case '\0':
|
case '\0':
|
case '"':
|
case '"':
|
/* Do nothing, loop will terminate. */
|
/* Do nothing, loop will terminate. */
|
break;
|
break;
|
case '\\':
|
case '\\':
|
tokptr++;
|
tokptr++;
|
c = parse_escape (&tokptr);
|
c = parse_escape (&tokptr);
|
if (c == -1)
|
if (c == -1)
|
{
|
{
|
continue;
|
continue;
|
}
|
}
|
tempbuf[tempbufindex++] = c;
|
tempbuf[tempbufindex++] = c;
|
break;
|
break;
|
default:
|
default:
|
tempbuf[tempbufindex++] = *tokptr++;
|
tempbuf[tempbufindex++] = *tokptr++;
|
break;
|
break;
|
}
|
}
|
} while ((*tokptr != '"') && (*tokptr != '\0'));
|
} while ((*tokptr != '"') && (*tokptr != '\0'));
|
if (*tokptr++ != '"')
|
if (*tokptr++ != '"')
|
{
|
{
|
error ("Unterminated string in expression.");
|
error ("Unterminated string in expression.");
|
}
|
}
|
tempbuf[tempbufindex] = '\0'; /* See note above */
|
tempbuf[tempbufindex] = '\0'; /* See note above */
|
yylval.sval.ptr = tempbuf;
|
yylval.sval.ptr = tempbuf;
|
yylval.sval.length = tempbufindex;
|
yylval.sval.length = tempbufindex;
|
lexptr = tokptr;
|
lexptr = tokptr;
|
return (STRING);
|
return (STRING);
|
}
|
}
|
|
|
if (!(c == '_' || c == '$'
|
if (!(c == '_' || c == '$'
|
|| (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z')))
|
|| (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z')))
|
/* We must have come across a bad character (e.g. ';'). */
|
/* We must have come across a bad character (e.g. ';'). */
|
error ("Invalid character '%c' in expression.", c);
|
error ("Invalid character '%c' in expression.", c);
|
|
|
/* It's a name. See how long it is. */
|
/* It's a name. See how long it is. */
|
namelen = 0;
|
namelen = 0;
|
for (c = tokstart[namelen];
|
for (c = tokstart[namelen];
|
(c == '_' || c == '$' || (c >= '0' && c <= '9')
|
(c == '_' || c == '$' || (c >= '0' && c <= '9')
|
|| (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || c == '<');)
|
|| (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || c == '<');)
|
{
|
{
|
/* Template parameter lists are part of the name.
|
/* Template parameter lists are part of the name.
|
FIXME: This mishandles `print $a<4&&$a>3'. */
|
FIXME: This mishandles `print $a<4&&$a>3'. */
|
if (c == '<')
|
if (c == '<')
|
{
|
{
|
int i = namelen;
|
int i = namelen;
|
int nesting_level = 1;
|
int nesting_level = 1;
|
while (tokstart[++i])
|
while (tokstart[++i])
|
{
|
{
|
if (tokstart[i] == '<')
|
if (tokstart[i] == '<')
|
nesting_level++;
|
nesting_level++;
|
else if (tokstart[i] == '>')
|
else if (tokstart[i] == '>')
|
{
|
{
|
if (--nesting_level == 0)
|
if (--nesting_level == 0)
|
break;
|
break;
|
}
|
}
|
}
|
}
|
if (tokstart[i] == '>')
|
if (tokstart[i] == '>')
|
namelen = i;
|
namelen = i;
|
else
|
else
|
break;
|
break;
|
}
|
}
|
|
|
/* do NOT uppercase internals because of registers !!! */
|
/* do NOT uppercase internals because of registers !!! */
|
c = tokstart[++namelen];
|
c = tokstart[++namelen];
|
}
|
}
|
|
|
uptokstart = uptok(tokstart,namelen);
|
uptokstart = uptok(tokstart,namelen);
|
|
|
/* The token "if" terminates the expression and is NOT
|
/* The token "if" terminates the expression and is NOT
|
removed from the input stream. */
|
removed from the input stream. */
|
if (namelen == 2 && uptokstart[0] == 'I' && uptokstart[1] == 'F')
|
if (namelen == 2 && uptokstart[0] == 'I' && uptokstart[1] == 'F')
|
{
|
{
|
free (uptokstart);
|
free (uptokstart);
|
return 0;
|
return 0;
|
}
|
}
|
|
|
lexptr += namelen;
|
lexptr += namelen;
|
|
|
tryname:
|
tryname:
|
|
|
/* Catch specific keywords. Should be done with a data structure. */
|
/* Catch specific keywords. Should be done with a data structure. */
|
switch (namelen)
|
switch (namelen)
|
{
|
{
|
case 6:
|
case 6:
|
if (strcmp (uptokstart, "OBJECT") == 0)
|
if (strcmp (uptokstart, "OBJECT") == 0)
|
{
|
{
|
free (uptokstart);
|
free (uptokstart);
|
return CLASS;
|
return CLASS;
|
}
|
}
|
if (strcmp (uptokstart, "RECORD") == 0)
|
if (strcmp (uptokstart, "RECORD") == 0)
|
{
|
{
|
free (uptokstart);
|
free (uptokstart);
|
return STRUCT;
|
return STRUCT;
|
}
|
}
|
if (strcmp (uptokstart, "SIZEOF") == 0)
|
if (strcmp (uptokstart, "SIZEOF") == 0)
|
{
|
{
|
free (uptokstart);
|
free (uptokstart);
|
return SIZEOF;
|
return SIZEOF;
|
}
|
}
|
break;
|
break;
|
case 5:
|
case 5:
|
if (strcmp (uptokstart, "CLASS") == 0)
|
if (strcmp (uptokstart, "CLASS") == 0)
|
{
|
{
|
free (uptokstart);
|
free (uptokstart);
|
return CLASS;
|
return CLASS;
|
}
|
}
|
if (strcmp (uptokstart, "FALSE") == 0)
|
if (strcmp (uptokstart, "FALSE") == 0)
|
{
|
{
|
yylval.lval = 0;
|
yylval.lval = 0;
|
free (uptokstart);
|
free (uptokstart);
|
return FALSEKEYWORD;
|
return FALSEKEYWORD;
|
}
|
}
|
break;
|
break;
|
case 4:
|
case 4:
|
if (strcmp (uptokstart, "TRUE") == 0)
|
if (strcmp (uptokstart, "TRUE") == 0)
|
{
|
{
|
yylval.lval = 1;
|
yylval.lval = 1;
|
free (uptokstart);
|
free (uptokstart);
|
return TRUEKEYWORD;
|
return TRUEKEYWORD;
|
}
|
}
|
if (strcmp (uptokstart, "SELF") == 0)
|
if (strcmp (uptokstart, "SELF") == 0)
|
{
|
{
|
/* here we search for 'this' like
|
/* here we search for 'this' like
|
inserted in FPC stabs debug info */
|
inserted in FPC stabs debug info */
|
static const char this_name[] = "this";
|
static const char this_name[] = "this";
|
|
|
if (lookup_symbol (this_name, expression_context_block,
|
if (lookup_symbol (this_name, expression_context_block,
|
VAR_DOMAIN, (int *) NULL,
|
VAR_DOMAIN, (int *) NULL,
|
(struct symtab **) NULL))
|
(struct symtab **) NULL))
|
{
|
{
|
free (uptokstart);
|
free (uptokstart);
|
return THIS;
|
return THIS;
|
}
|
}
|
}
|
}
|
break;
|
break;
|
default:
|
default:
|
break;
|
break;
|
}
|
}
|
|
|
yylval.sval.ptr = tokstart;
|
yylval.sval.ptr = tokstart;
|
yylval.sval.length = namelen;
|
yylval.sval.length = namelen;
|
|
|
if (*tokstart == '$')
|
if (*tokstart == '$')
|
{
|
{
|
/* $ is the normal prefix for pascal hexadecimal values
|
/* $ is the normal prefix for pascal hexadecimal values
|
but this conflicts with the GDB use for debugger variables
|
but this conflicts with the GDB use for debugger variables
|
so in expression to enter hexadecimal values
|
so in expression to enter hexadecimal values
|
we still need to use C syntax with 0xff */
|
we still need to use C syntax with 0xff */
|
write_dollar_variable (yylval.sval);
|
write_dollar_variable (yylval.sval);
|
free (uptokstart);
|
free (uptokstart);
|
return VARIABLE;
|
return VARIABLE;
|
}
|
}
|
|
|
/* Use token-type BLOCKNAME for symbols that happen to be defined as
|
/* Use token-type BLOCKNAME for symbols that happen to be defined as
|
functions or symtabs. If this is not so, then ...
|
functions or symtabs. If this is not so, then ...
|
Use token-type TYPENAME for symbols that happen to be defined
|
Use token-type TYPENAME for symbols that happen to be defined
|
currently as names of types; NAME for other symbols.
|
currently as names of types; NAME for other symbols.
|
The caller is not constrained to care about the distinction. */
|
The caller is not constrained to care about the distinction. */
|
{
|
{
|
char *tmp = copy_name (yylval.sval);
|
char *tmp = copy_name (yylval.sval);
|
struct symbol *sym;
|
struct symbol *sym;
|
int is_a_field_of_this = 0;
|
int is_a_field_of_this = 0;
|
int is_a_field = 0;
|
int is_a_field = 0;
|
int hextype;
|
int hextype;
|
|
|
|
|
if (search_field && current_type)
|
if (search_field && current_type)
|
is_a_field = (lookup_struct_elt_type (current_type, tmp, 1) != NULL);
|
is_a_field = (lookup_struct_elt_type (current_type, tmp, 1) != NULL);
|
if (is_a_field)
|
if (is_a_field)
|
sym = NULL;
|
sym = NULL;
|
else
|
else
|
sym = lookup_symbol (tmp, expression_context_block,
|
sym = lookup_symbol (tmp, expression_context_block,
|
VAR_DOMAIN,
|
VAR_DOMAIN,
|
&is_a_field_of_this,
|
&is_a_field_of_this,
|
(struct symtab **) NULL);
|
(struct symtab **) NULL);
|
/* second chance uppercased (as Free Pascal does). */
|
/* second chance uppercased (as Free Pascal does). */
|
if (!sym && !is_a_field_of_this && !is_a_field)
|
if (!sym && !is_a_field_of_this && !is_a_field)
|
{
|
{
|
for (i = 0; i <= namelen; i++)
|
for (i = 0; i <= namelen; i++)
|
{
|
{
|
if ((tmp[i] >= 'a' && tmp[i] <= 'z'))
|
if ((tmp[i] >= 'a' && tmp[i] <= 'z'))
|
tmp[i] -= ('a'-'A');
|
tmp[i] -= ('a'-'A');
|
}
|
}
|
if (search_field && current_type)
|
if (search_field && current_type)
|
is_a_field = (lookup_struct_elt_type (current_type, tmp, 1) != NULL);
|
is_a_field = (lookup_struct_elt_type (current_type, tmp, 1) != NULL);
|
if (is_a_field)
|
if (is_a_field)
|
sym = NULL;
|
sym = NULL;
|
else
|
else
|
sym = lookup_symbol (tmp, expression_context_block,
|
sym = lookup_symbol (tmp, expression_context_block,
|
VAR_DOMAIN,
|
VAR_DOMAIN,
|
&is_a_field_of_this,
|
&is_a_field_of_this,
|
(struct symtab **) NULL);
|
(struct symtab **) NULL);
|
if (sym || is_a_field_of_this || is_a_field)
|
if (sym || is_a_field_of_this || is_a_field)
|
for (i = 0; i <= namelen; i++)
|
for (i = 0; i <= namelen; i++)
|
{
|
{
|
if ((tokstart[i] >= 'a' && tokstart[i] <= 'z'))
|
if ((tokstart[i] >= 'a' && tokstart[i] <= 'z'))
|
tokstart[i] -= ('a'-'A');
|
tokstart[i] -= ('a'-'A');
|
}
|
}
|
}
|
}
|
/* Third chance Capitalized (as GPC does). */
|
/* Third chance Capitalized (as GPC does). */
|
if (!sym && !is_a_field_of_this && !is_a_field)
|
if (!sym && !is_a_field_of_this && !is_a_field)
|
{
|
{
|
for (i = 0; i <= namelen; i++)
|
for (i = 0; i <= namelen; i++)
|
{
|
{
|
if (i == 0)
|
if (i == 0)
|
{
|
{
|
if ((tmp[i] >= 'a' && tmp[i] <= 'z'))
|
if ((tmp[i] >= 'a' && tmp[i] <= 'z'))
|
tmp[i] -= ('a'-'A');
|
tmp[i] -= ('a'-'A');
|
}
|
}
|
else
|
else
|
if ((tmp[i] >= 'A' && tmp[i] <= 'Z'))
|
if ((tmp[i] >= 'A' && tmp[i] <= 'Z'))
|
tmp[i] -= ('A'-'a');
|
tmp[i] -= ('A'-'a');
|
}
|
}
|
if (search_field && current_type)
|
if (search_field && current_type)
|
is_a_field = (lookup_struct_elt_type (current_type, tmp, 1) != NULL);
|
is_a_field = (lookup_struct_elt_type (current_type, tmp, 1) != NULL);
|
if (is_a_field)
|
if (is_a_field)
|
sym = NULL;
|
sym = NULL;
|
else
|
else
|
sym = lookup_symbol (tmp, expression_context_block,
|
sym = lookup_symbol (tmp, expression_context_block,
|
VAR_DOMAIN,
|
VAR_DOMAIN,
|
&is_a_field_of_this,
|
&is_a_field_of_this,
|
(struct symtab **) NULL);
|
(struct symtab **) NULL);
|
if (sym || is_a_field_of_this || is_a_field)
|
if (sym || is_a_field_of_this || is_a_field)
|
for (i = 0; i <= namelen; i++)
|
for (i = 0; i <= namelen; i++)
|
{
|
{
|
if (i == 0)
|
if (i == 0)
|
{
|
{
|
if ((tokstart[i] >= 'a' && tokstart[i] <= 'z'))
|
if ((tokstart[i] >= 'a' && tokstart[i] <= 'z'))
|
tokstart[i] -= ('a'-'A');
|
tokstart[i] -= ('a'-'A');
|
}
|
}
|
else
|
else
|
if ((tokstart[i] >= 'A' && tokstart[i] <= 'Z'))
|
if ((tokstart[i] >= 'A' && tokstart[i] <= 'Z'))
|
tokstart[i] -= ('A'-'a');
|
tokstart[i] -= ('A'-'a');
|
}
|
}
|
}
|
}
|
|
|
if (is_a_field)
|
if (is_a_field)
|
{
|
{
|
tempbuf = (char *) realloc (tempbuf, namelen + 1);
|
tempbuf = (char *) realloc (tempbuf, namelen + 1);
|
strncpy (tempbuf, tokstart, namelen); tempbuf [namelen] = 0;
|
strncpy (tempbuf, tokstart, namelen); tempbuf [namelen] = 0;
|
yylval.sval.ptr = tempbuf;
|
yylval.sval.ptr = tempbuf;
|
yylval.sval.length = namelen;
|
yylval.sval.length = namelen;
|
free (uptokstart);
|
free (uptokstart);
|
return FIELDNAME;
|
return FIELDNAME;
|
}
|
}
|
/* Call lookup_symtab, not lookup_partial_symtab, in case there are
|
/* Call lookup_symtab, not lookup_partial_symtab, in case there are
|
no psymtabs (coff, xcoff, or some future change to blow away the
|
no psymtabs (coff, xcoff, or some future change to blow away the
|
psymtabs once once symbols are read). */
|
psymtabs once once symbols are read). */
|
if ((sym && SYMBOL_CLASS (sym) == LOC_BLOCK)
|
if ((sym && SYMBOL_CLASS (sym) == LOC_BLOCK)
|
|| lookup_symtab (tmp))
|
|| lookup_symtab (tmp))
|
{
|
{
|
yylval.ssym.sym = sym;
|
yylval.ssym.sym = sym;
|
yylval.ssym.is_a_field_of_this = is_a_field_of_this;
|
yylval.ssym.is_a_field_of_this = is_a_field_of_this;
|
free (uptokstart);
|
free (uptokstart);
|
return BLOCKNAME;
|
return BLOCKNAME;
|
}
|
}
|
if (sym && SYMBOL_CLASS (sym) == LOC_TYPEDEF)
|
if (sym && SYMBOL_CLASS (sym) == LOC_TYPEDEF)
|
{
|
{
|
#if 1
|
#if 1
|
/* Despite the following flaw, we need to keep this code enabled.
|
/* Despite the following flaw, we need to keep this code enabled.
|
Because we can get called from check_stub_method, if we don't
|
Because we can get called from check_stub_method, if we don't
|
handle nested types then it screws many operations in any
|
handle nested types then it screws many operations in any
|
program which uses nested types. */
|
program which uses nested types. */
|
/* In "A::x", if x is a member function of A and there happens
|
/* In "A::x", if x is a member function of A and there happens
|
to be a type (nested or not, since the stabs don't make that
|
to be a type (nested or not, since the stabs don't make that
|
distinction) named x, then this code incorrectly thinks we
|
distinction) named x, then this code incorrectly thinks we
|
are dealing with nested types rather than a member function. */
|
are dealing with nested types rather than a member function. */
|
|
|
char *p;
|
char *p;
|
char *namestart;
|
char *namestart;
|
struct symbol *best_sym;
|
struct symbol *best_sym;
|
|
|
/* Look ahead to detect nested types. This probably should be
|
/* Look ahead to detect nested types. This probably should be
|
done in the grammar, but trying seemed to introduce a lot
|
done in the grammar, but trying seemed to introduce a lot
|
of shift/reduce and reduce/reduce conflicts. It's possible
|
of shift/reduce and reduce/reduce conflicts. It's possible
|
that it could be done, though. Or perhaps a non-grammar, but
|
that it could be done, though. Or perhaps a non-grammar, but
|
less ad hoc, approach would work well. */
|
less ad hoc, approach would work well. */
|
|
|
/* Since we do not currently have any way of distinguishing
|
/* Since we do not currently have any way of distinguishing
|
a nested type from a non-nested one (the stabs don't tell
|
a nested type from a non-nested one (the stabs don't tell
|
us whether a type is nested), we just ignore the
|
us whether a type is nested), we just ignore the
|
containing type. */
|
containing type. */
|
|
|
p = lexptr;
|
p = lexptr;
|
best_sym = sym;
|
best_sym = sym;
|
while (1)
|
while (1)
|
{
|
{
|
/* Skip whitespace. */
|
/* Skip whitespace. */
|
while (*p == ' ' || *p == '\t' || *p == '\n')
|
while (*p == ' ' || *p == '\t' || *p == '\n')
|
++p;
|
++p;
|
if (*p == ':' && p[1] == ':')
|
if (*p == ':' && p[1] == ':')
|
{
|
{
|
/* Skip the `::'. */
|
/* Skip the `::'. */
|
p += 2;
|
p += 2;
|
/* Skip whitespace. */
|
/* Skip whitespace. */
|
while (*p == ' ' || *p == '\t' || *p == '\n')
|
while (*p == ' ' || *p == '\t' || *p == '\n')
|
++p;
|
++p;
|
namestart = p;
|
namestart = p;
|
while (*p == '_' || *p == '$' || (*p >= '0' && *p <= '9')
|
while (*p == '_' || *p == '$' || (*p >= '0' && *p <= '9')
|
|| (*p >= 'a' && *p <= 'z')
|
|| (*p >= 'a' && *p <= 'z')
|
|| (*p >= 'A' && *p <= 'Z'))
|
|| (*p >= 'A' && *p <= 'Z'))
|
++p;
|
++p;
|
if (p != namestart)
|
if (p != namestart)
|
{
|
{
|
struct symbol *cur_sym;
|
struct symbol *cur_sym;
|
/* As big as the whole rest of the expression, which is
|
/* As big as the whole rest of the expression, which is
|
at least big enough. */
|
at least big enough. */
|
char *ncopy = alloca (strlen (tmp)+strlen (namestart)+3);
|
char *ncopy = alloca (strlen (tmp)+strlen (namestart)+3);
|
char *tmp1;
|
char *tmp1;
|
|
|
tmp1 = ncopy;
|
tmp1 = ncopy;
|
memcpy (tmp1, tmp, strlen (tmp));
|
memcpy (tmp1, tmp, strlen (tmp));
|
tmp1 += strlen (tmp);
|
tmp1 += strlen (tmp);
|
memcpy (tmp1, "::", 2);
|
memcpy (tmp1, "::", 2);
|
tmp1 += 2;
|
tmp1 += 2;
|
memcpy (tmp1, namestart, p - namestart);
|
memcpy (tmp1, namestart, p - namestart);
|
tmp1[p - namestart] = '\0';
|
tmp1[p - namestart] = '\0';
|
cur_sym = lookup_symbol (ncopy, expression_context_block,
|
cur_sym = lookup_symbol (ncopy, expression_context_block,
|
VAR_DOMAIN, (int *) NULL,
|
VAR_DOMAIN, (int *) NULL,
|
(struct symtab **) NULL);
|
(struct symtab **) NULL);
|
if (cur_sym)
|
if (cur_sym)
|
{
|
{
|
if (SYMBOL_CLASS (cur_sym) == LOC_TYPEDEF)
|
if (SYMBOL_CLASS (cur_sym) == LOC_TYPEDEF)
|
{
|
{
|
best_sym = cur_sym;
|
best_sym = cur_sym;
|
lexptr = p;
|
lexptr = p;
|
}
|
}
|
else
|
else
|
break;
|
break;
|
}
|
}
|
else
|
else
|
break;
|
break;
|
}
|
}
|
else
|
else
|
break;
|
break;
|
}
|
}
|
else
|
else
|
break;
|
break;
|
}
|
}
|
|
|
yylval.tsym.type = SYMBOL_TYPE (best_sym);
|
yylval.tsym.type = SYMBOL_TYPE (best_sym);
|
#else /* not 0 */
|
#else /* not 0 */
|
yylval.tsym.type = SYMBOL_TYPE (sym);
|
yylval.tsym.type = SYMBOL_TYPE (sym);
|
#endif /* not 0 */
|
#endif /* not 0 */
|
free (uptokstart);
|
free (uptokstart);
|
return TYPENAME;
|
return TYPENAME;
|
}
|
}
|
yylval.tsym.type
|
yylval.tsym.type
|
= language_lookup_primitive_type_by_name (current_language,
|
= language_lookup_primitive_type_by_name (current_language,
|
current_gdbarch, tmp);
|
current_gdbarch, tmp);
|
if (yylval.tsym.type != NULL)
|
if (yylval.tsym.type != NULL)
|
{
|
{
|
free (uptokstart);
|
free (uptokstart);
|
return TYPENAME;
|
return TYPENAME;
|
}
|
}
|
|
|
/* Input names that aren't symbols but ARE valid hex numbers,
|
/* Input names that aren't symbols but ARE valid hex numbers,
|
when the input radix permits them, can be names or numbers
|
when the input radix permits them, can be names or numbers
|
depending on the parse. Note we support radixes > 16 here. */
|
depending on the parse. Note we support radixes > 16 here. */
|
if (!sym
|
if (!sym
|
&& ((tokstart[0] >= 'a' && tokstart[0] < 'a' + input_radix - 10)
|
&& ((tokstart[0] >= 'a' && tokstart[0] < 'a' + input_radix - 10)
|
|| (tokstart[0] >= 'A' && tokstart[0] < 'A' + input_radix - 10)))
|
|| (tokstart[0] >= 'A' && tokstart[0] < 'A' + input_radix - 10)))
|
{
|
{
|
YYSTYPE newlval; /* Its value is ignored. */
|
YYSTYPE newlval; /* Its value is ignored. */
|
hextype = parse_number (tokstart, namelen, 0, &newlval);
|
hextype = parse_number (tokstart, namelen, 0, &newlval);
|
if (hextype == INT)
|
if (hextype == INT)
|
{
|
{
|
yylval.ssym.sym = sym;
|
yylval.ssym.sym = sym;
|
yylval.ssym.is_a_field_of_this = is_a_field_of_this;
|
yylval.ssym.is_a_field_of_this = is_a_field_of_this;
|
free (uptokstart);
|
free (uptokstart);
|
return NAME_OR_INT;
|
return NAME_OR_INT;
|
}
|
}
|
}
|
}
|
|
|
free(uptokstart);
|
free(uptokstart);
|
/* Any other kind of symbol */
|
/* Any other kind of symbol */
|
yylval.ssym.sym = sym;
|
yylval.ssym.sym = sym;
|
yylval.ssym.is_a_field_of_this = is_a_field_of_this;
|
yylval.ssym.is_a_field_of_this = is_a_field_of_this;
|
return NAME;
|
return NAME;
|
}
|
}
|
}
|
}
|
|
|
void
|
void
|
yyerror (msg)
|
yyerror (msg)
|
char *msg;
|
char *msg;
|
{
|
{
|
if (prev_lexptr)
|
if (prev_lexptr)
|
lexptr = prev_lexptr;
|
lexptr = prev_lexptr;
|
|
|
error ("A %s in expression, near `%s'.", (msg ? msg : "error"), lexptr);
|
error ("A %s in expression, near `%s'.", (msg ? msg : "error"), lexptr);
|
}
|
}
|
|
|
