1061 lines
36 KiB
Plaintext
1061 lines
36 KiB
Plaintext
/*
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* Copyright 2011 Jacek Caban for CodeWeavers
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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%{
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#include "vbscript.h"
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#include "parse.h"
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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(vbscript);
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static int parser_error(parser_ctx_t *,const char*);
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static void parse_complete(parser_ctx_t*,BOOL);
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static void source_add_statement(parser_ctx_t*,statement_t*);
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static void source_add_class(parser_ctx_t*,class_decl_t*);
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static void *new_expression(parser_ctx_t*,expression_type_t,size_t);
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static expression_t *new_bool_expression(parser_ctx_t*,VARIANT_BOOL);
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static expression_t *new_string_expression(parser_ctx_t*,const WCHAR*);
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static expression_t *new_long_expression(parser_ctx_t*,expression_type_t,LONG);
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static expression_t *new_double_expression(parser_ctx_t*,double);
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static expression_t *new_unary_expression(parser_ctx_t*,expression_type_t,expression_t*);
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static expression_t *new_binary_expression(parser_ctx_t*,expression_type_t,expression_t*,expression_t*);
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static expression_t *new_new_expression(parser_ctx_t*,const WCHAR*);
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static member_expression_t *new_member_expression(parser_ctx_t*,expression_t*,const WCHAR*);
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static void *new_statement(parser_ctx_t*,statement_type_t,size_t);
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static statement_t *new_call_statement(parser_ctx_t*,BOOL,member_expression_t*);
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static statement_t *new_assign_statement(parser_ctx_t*,member_expression_t*,expression_t*);
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static statement_t *new_set_statement(parser_ctx_t*,member_expression_t*,expression_t*);
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static statement_t *new_dim_statement(parser_ctx_t*,dim_decl_t*);
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static statement_t *new_while_statement(parser_ctx_t*,statement_type_t,expression_t*,statement_t*);
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static statement_t *new_forto_statement(parser_ctx_t*,const WCHAR*,expression_t*,expression_t*,expression_t*,statement_t*);
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static statement_t *new_foreach_statement(parser_ctx_t*,const WCHAR*,expression_t*,statement_t*);
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static statement_t *new_if_statement(parser_ctx_t*,expression_t*,statement_t*,elseif_decl_t*,statement_t*);
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static statement_t *new_function_statement(parser_ctx_t*,function_decl_t*);
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static statement_t *new_onerror_statement(parser_ctx_t*,BOOL);
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static statement_t *new_const_statement(parser_ctx_t*,const_decl_t*);
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static statement_t *new_select_statement(parser_ctx_t*,expression_t*,case_clausule_t*);
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static dim_decl_t *new_dim_decl(parser_ctx_t*,const WCHAR*,BOOL,dim_list_t*);
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static dim_list_t *new_dim(parser_ctx_t*,unsigned,dim_list_t*);
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static elseif_decl_t *new_elseif_decl(parser_ctx_t*,expression_t*,statement_t*);
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static function_decl_t *new_function_decl(parser_ctx_t*,const WCHAR*,function_type_t,unsigned,arg_decl_t*,statement_t*);
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static arg_decl_t *new_argument_decl(parser_ctx_t*,const WCHAR*,BOOL);
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static const_decl_t *new_const_decl(parser_ctx_t*,const WCHAR*,expression_t*);
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static case_clausule_t *new_case_clausule(parser_ctx_t*,expression_t*,statement_t*,case_clausule_t*);
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static class_decl_t *new_class_decl(parser_ctx_t*);
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static class_decl_t *add_class_function(parser_ctx_t*,class_decl_t*,function_decl_t*);
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static class_decl_t *add_dim_prop(parser_ctx_t*,class_decl_t*,dim_decl_t*,unsigned);
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static statement_t *link_statements(statement_t*,statement_t*);
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#define STORAGE_IS_PRIVATE 1
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#define STORAGE_IS_DEFAULT 2
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#define CHECK_ERROR if(((parser_ctx_t*)ctx)->hres != S_OK) YYABORT
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%}
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%lex-param { parser_ctx_t *ctx }
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%parse-param { parser_ctx_t *ctx }
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%pure-parser
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%start Program
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%union {
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const WCHAR *string;
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statement_t *statement;
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expression_t *expression;
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member_expression_t *member;
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elseif_decl_t *elseif;
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dim_decl_t *dim_decl;
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dim_list_t *dim_list;
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function_decl_t *func_decl;
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arg_decl_t *arg_decl;
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class_decl_t *class_decl;
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const_decl_t *const_decl;
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case_clausule_t *case_clausule;
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unsigned uint;
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LONG integer;
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BOOL boolean;
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double dbl;
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}
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%token tEOF tNL tEMPTYBRACKETS
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%token tLTEQ tGTEQ tNEQ
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%token tSTOP tME tREM
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%token <string> tTRUE tFALSE
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%token <string> tNOT tAND tOR tXOR tEQV tIMP
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%token <string> tIS tMOD
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%token <string> tCALL tDIM tSUB tFUNCTION tGET tLET tCONST
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%token <string> tIF tELSE tELSEIF tEND tTHEN tEXIT
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%token <string> tWHILE tWEND tDO tLOOP tUNTIL tFOR tTO tEACH tIN
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%token <string> tSELECT tCASE
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%token <string> tBYREF tBYVAL
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%token <string> tOPTION
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%token <string> tNOTHING tEMPTY tNULL
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%token <string> tCLASS tSET tNEW tPUBLIC tPRIVATE
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%token <string> tNEXT tON tRESUME tGOTO
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%token <string> tIdentifier tString
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%token <string> tDEFAULT tERROR tEXPLICIT tPROPERTY tSTEP
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%token <integer> tInt
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%token <dbl> tDouble
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%type <statement> Statement SimpleStatement StatementNl StatementsNl StatementsNl_opt IfStatement Else_opt
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%type <expression> Expression LiteralExpression PrimaryExpression EqualityExpression CallExpression
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%type <expression> ConcatExpression AdditiveExpression ModExpression IntdivExpression MultiplicativeExpression ExpExpression
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%type <expression> NotExpression UnaryExpression AndExpression OrExpression XorExpression EqvExpression
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%type <expression> ConstExpression NumericLiteralExpression
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%type <member> MemberExpression
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%type <expression> Arguments_opt ArgumentList ArgumentList_opt Step_opt ExpressionList
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%type <boolean> OptionExplicit_opt DoType
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%type <arg_decl> ArgumentsDecl_opt ArgumentDeclList ArgumentDecl
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%type <func_decl> FunctionDecl PropertyDecl
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%type <elseif> ElseIfs_opt ElseIfs ElseIf
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%type <class_decl> ClassDeclaration ClassBody
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%type <uint> Storage Storage_opt IntegerValue
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%type <dim_decl> DimDeclList DimDecl
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%type <dim_list> DimList
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%type <const_decl> ConstDecl ConstDeclList
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%type <string> Identifier DotIdentifier
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%type <case_clausule> CaseClausules
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%%
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Program
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: OptionExplicit_opt SourceElements tEOF { parse_complete(ctx, $1); }
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OptionExplicit_opt
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: /* empty */ { $$ = FALSE; }
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| tOPTION tEXPLICIT StSep { $$ = TRUE; }
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SourceElements
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: /* empty */
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| SourceElements StatementNl { source_add_statement(ctx, $2); }
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| SourceElements ClassDeclaration { source_add_class(ctx, $2); }
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StatementsNl_opt
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: /* empty */ { $$ = NULL; }
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| StatementsNl { $$ = $1; }
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StatementsNl
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: StatementNl { $$ = $1; }
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| StatementNl StatementsNl { $$ = link_statements($1, $2); }
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StatementNl
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: Statement tNL { $$ = $1; }
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Statement
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: ':' { $$ = NULL; }
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| ':' Statement { $$ = $2; }
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| SimpleStatement { $$ = $1; }
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| SimpleStatement ':' Statement { $1->next = $3; $$ = $1; }
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| SimpleStatement ':' { $$ = $1; }
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SimpleStatement
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: MemberExpression ArgumentList_opt { $1->args = $2; $$ = new_call_statement(ctx, FALSE, $1); CHECK_ERROR; }
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| tCALL MemberExpression Arguments_opt { $2->args = $3; $$ = new_call_statement(ctx, TRUE, $2); CHECK_ERROR; }
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| MemberExpression Arguments_opt '=' Expression
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{ $1->args = $2; $$ = new_assign_statement(ctx, $1, $4); CHECK_ERROR; }
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| tDIM DimDeclList { $$ = new_dim_statement(ctx, $2); CHECK_ERROR; }
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| IfStatement { $$ = $1; }
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| tWHILE Expression StSep StatementsNl_opt tWEND
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{ $$ = new_while_statement(ctx, STAT_WHILE, $2, $4); CHECK_ERROR; }
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| tDO DoType Expression StSep StatementsNl_opt tLOOP
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{ $$ = new_while_statement(ctx, $2 ? STAT_WHILELOOP : STAT_UNTIL, $3, $5);
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CHECK_ERROR; }
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| tDO StSep StatementsNl_opt tLOOP DoType Expression
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{ $$ = new_while_statement(ctx, $5 ? STAT_DOWHILE : STAT_DOUNTIL, $6, $3);
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CHECK_ERROR; }
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| tDO StSep StatementsNl_opt tLOOP { $$ = new_while_statement(ctx, STAT_DOWHILE, NULL, $3); CHECK_ERROR; }
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| FunctionDecl { $$ = new_function_statement(ctx, $1); CHECK_ERROR; }
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| tEXIT tDO { $$ = new_statement(ctx, STAT_EXITDO, 0); CHECK_ERROR; }
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| tEXIT tFOR { $$ = new_statement(ctx, STAT_EXITFOR, 0); CHECK_ERROR; }
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| tEXIT tFUNCTION { $$ = new_statement(ctx, STAT_EXITFUNC, 0); CHECK_ERROR; }
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| tEXIT tPROPERTY { $$ = new_statement(ctx, STAT_EXITPROP, 0); CHECK_ERROR; }
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| tEXIT tSUB { $$ = new_statement(ctx, STAT_EXITSUB, 0); CHECK_ERROR; }
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| tSET MemberExpression Arguments_opt '=' Expression
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{ $2->args = $3; $$ = new_set_statement(ctx, $2, $5); CHECK_ERROR; }
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| tSTOP { $$ = new_statement(ctx, STAT_STOP, 0); CHECK_ERROR; }
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| tON tERROR tRESUME tNEXT { $$ = new_onerror_statement(ctx, TRUE); CHECK_ERROR; }
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| tON tERROR tGOTO '0' { $$ = new_onerror_statement(ctx, FALSE); CHECK_ERROR; }
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| tCONST ConstDeclList { $$ = new_const_statement(ctx, $2); CHECK_ERROR; }
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| tFOR Identifier '=' Expression tTO Expression Step_opt StSep StatementsNl_opt tNEXT
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{ $$ = new_forto_statement(ctx, $2, $4, $6, $7, $9); CHECK_ERROR; }
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| tFOR tEACH Identifier tIN Expression StSep StatementsNl_opt tNEXT
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{ $$ = new_foreach_statement(ctx, $3, $5, $7); }
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| tSELECT tCASE Expression StSep CaseClausules tEND tSELECT
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{ $$ = new_select_statement(ctx, $3, $5); }
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MemberExpression
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: Identifier { $$ = new_member_expression(ctx, NULL, $1); CHECK_ERROR; }
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| CallExpression '.' DotIdentifier { $$ = new_member_expression(ctx, $1, $3); CHECK_ERROR; }
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DimDeclList
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: DimDecl { $$ = $1; }
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| DimDecl ',' DimDeclList { $1->next = $3; $$ = $1; }
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DimDecl
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: Identifier { $$ = new_dim_decl(ctx, $1, FALSE, NULL); CHECK_ERROR; }
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| Identifier '(' DimList ')' { $$ = new_dim_decl(ctx, $1, TRUE, $3); CHECK_ERROR; }
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| Identifier tEMPTYBRACKETS { $$ = new_dim_decl(ctx, $1, TRUE, NULL); CHECK_ERROR; }
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DimList
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: IntegerValue { $$ = new_dim(ctx, $1, NULL); }
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| IntegerValue ',' DimList { $$ = new_dim(ctx, $1, $3); }
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ConstDeclList
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: ConstDecl { $$ = $1; }
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| ConstDecl ',' ConstDeclList { $1->next = $3; $$ = $1; }
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ConstDecl
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: Identifier '=' ConstExpression { $$ = new_const_decl(ctx, $1, $3); CHECK_ERROR; }
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ConstExpression
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: LiteralExpression { $$ = $1; }
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| '-' NumericLiteralExpression { $$ = new_unary_expression(ctx, EXPR_NEG, $2); CHECK_ERROR; }
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DoType
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: tWHILE { $$ = TRUE; }
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| tUNTIL { $$ = FALSE; }
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Step_opt
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: /* empty */ { $$ = NULL;}
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| tSTEP Expression { $$ = $2; }
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IfStatement
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: tIF Expression tTHEN tNL StatementsNl_opt ElseIfs_opt Else_opt tEND tIF
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{ $$ = new_if_statement(ctx, $2, $5, $6, $7); CHECK_ERROR; }
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| tIF Expression tTHEN Statement EndIf_opt { $$ = new_if_statement(ctx, $2, $4, NULL, NULL); CHECK_ERROR; }
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| tIF Expression tTHEN Statement tELSE Statement EndIf_opt
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{ $$ = new_if_statement(ctx, $2, $4, NULL, $6); CHECK_ERROR; }
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EndIf_opt
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: /* empty */
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| tEND tIF
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ElseIfs_opt
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: /* empty */ { $$ = NULL; }
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| ElseIfs { $$ = $1; }
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ElseIfs
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: ElseIf { $$ = $1; }
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| ElseIf ElseIfs { $1->next = $2; $$ = $1; }
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ElseIf
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: tELSEIF Expression tTHEN tNL StatementsNl_opt
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{ $$ = new_elseif_decl(ctx, $2, $5); }
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Else_opt
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: /* empty */ { $$ = NULL; }
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| tELSE tNL StatementsNl_opt { $$ = $3; }
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CaseClausules
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: /* empty */ { $$ = NULL; }
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| tCASE tELSE StSep StatementsNl { $$ = new_case_clausule(ctx, NULL, $4, NULL); }
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| tCASE ExpressionList StSep StatementsNl_opt CaseClausules
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{ $$ = new_case_clausule(ctx, $2, $4, $5); }
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Arguments_opt
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: EmptyBrackets_opt { $$ = NULL; }
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| '(' ArgumentList ')' { $$ = $2; }
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ArgumentList_opt
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: EmptyBrackets_opt { $$ = NULL; }
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| ArgumentList { $$ = $1; }
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ArgumentList
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: Expression { $$ = $1; }
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| Expression ',' ArgumentList { $1->next = $3; $$ = $1; }
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| ',' ArgumentList { $$ = new_expression(ctx, EXPR_NOARG, 0); CHECK_ERROR; $$->next = $2; }
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EmptyBrackets_opt
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: /* empty */
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| tEMPTYBRACKETS
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ExpressionList
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: Expression { $$ = $1; }
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| Expression ',' ExpressionList { $1->next = $3; $$ = $1; }
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Expression
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: EqvExpression { $$ = $1; }
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| Expression tIMP EqvExpression { $$ = new_binary_expression(ctx, EXPR_IMP, $1, $3); CHECK_ERROR; }
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EqvExpression
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: XorExpression { $$ = $1; }
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| EqvExpression tEQV XorExpression { $$ = new_binary_expression(ctx, EXPR_EQV, $1, $3); CHECK_ERROR; }
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XorExpression
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: OrExpression { $$ = $1; }
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| XorExpression tXOR OrExpression { $$ = new_binary_expression(ctx, EXPR_XOR, $1, $3); CHECK_ERROR; }
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OrExpression
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: AndExpression { $$ = $1; }
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| OrExpression tOR AndExpression { $$ = new_binary_expression(ctx, EXPR_OR, $1, $3); CHECK_ERROR; }
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AndExpression
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: NotExpression { $$ = $1; }
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| AndExpression tAND NotExpression { $$ = new_binary_expression(ctx, EXPR_AND, $1, $3); CHECK_ERROR; }
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NotExpression
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: EqualityExpression { $$ = $1; }
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| tNOT NotExpression { $$ = new_unary_expression(ctx, EXPR_NOT, $2); CHECK_ERROR; }
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EqualityExpression
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: ConcatExpression { $$ = $1; }
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| EqualityExpression '=' ConcatExpression { $$ = new_binary_expression(ctx, EXPR_EQUAL, $1, $3); CHECK_ERROR; }
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| EqualityExpression tNEQ ConcatExpression { $$ = new_binary_expression(ctx, EXPR_NEQUAL, $1, $3); CHECK_ERROR; }
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| EqualityExpression '>' ConcatExpression { $$ = new_binary_expression(ctx, EXPR_GT, $1, $3); CHECK_ERROR; }
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| EqualityExpression '<' ConcatExpression { $$ = new_binary_expression(ctx, EXPR_LT, $1, $3); CHECK_ERROR; }
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| EqualityExpression tGTEQ ConcatExpression { $$ = new_binary_expression(ctx, EXPR_GTEQ, $1, $3); CHECK_ERROR; }
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| EqualityExpression tLTEQ ConcatExpression { $$ = new_binary_expression(ctx, EXPR_LTEQ, $1, $3); CHECK_ERROR; }
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| EqualityExpression tIS ConcatExpression { $$ = new_binary_expression(ctx, EXPR_IS, $1, $3); CHECK_ERROR; }
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ConcatExpression
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: AdditiveExpression { $$ = $1; }
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| ConcatExpression '&' AdditiveExpression { $$ = new_binary_expression(ctx, EXPR_CONCAT, $1, $3); CHECK_ERROR; }
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AdditiveExpression
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: ModExpression { $$ = $1; }
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| AdditiveExpression '+' ModExpression { $$ = new_binary_expression(ctx, EXPR_ADD, $1, $3); CHECK_ERROR; }
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| AdditiveExpression '-' ModExpression { $$ = new_binary_expression(ctx, EXPR_SUB, $1, $3); CHECK_ERROR; }
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ModExpression
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: IntdivExpression { $$ = $1; }
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| ModExpression tMOD IntdivExpression { $$ = new_binary_expression(ctx, EXPR_MOD, $1, $3); CHECK_ERROR; }
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IntdivExpression
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: MultiplicativeExpression { $$ = $1; }
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| IntdivExpression '\\' MultiplicativeExpression
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{ $$ = new_binary_expression(ctx, EXPR_IDIV, $1, $3); CHECK_ERROR; }
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MultiplicativeExpression
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: ExpExpression { $$ = $1; }
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| MultiplicativeExpression '*' ExpExpression
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{ $$ = new_binary_expression(ctx, EXPR_MUL, $1, $3); CHECK_ERROR; }
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| MultiplicativeExpression '/' ExpExpression
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{ $$ = new_binary_expression(ctx, EXPR_DIV, $1, $3); CHECK_ERROR; }
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ExpExpression
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: UnaryExpression { $$ = $1; }
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| ExpExpression '^' UnaryExpression { $$ = new_binary_expression(ctx, EXPR_EXP, $1, $3); CHECK_ERROR; }
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UnaryExpression
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: LiteralExpression { $$ = $1; }
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| CallExpression { $$ = $1; }
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| tNEW Identifier { $$ = new_new_expression(ctx, $2); CHECK_ERROR; }
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| '-' UnaryExpression { $$ = new_unary_expression(ctx, EXPR_NEG, $2); CHECK_ERROR; }
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| '+' UnaryExpression { $$ = $2; }
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CallExpression
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: PrimaryExpression { $$ = $1; }
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| MemberExpression Arguments_opt { $1->args = $2; $$ = &$1->expr; }
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LiteralExpression
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: tTRUE { $$ = new_bool_expression(ctx, VARIANT_TRUE); CHECK_ERROR; }
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| tFALSE { $$ = new_bool_expression(ctx, VARIANT_FALSE); CHECK_ERROR; }
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| tString { $$ = new_string_expression(ctx, $1); CHECK_ERROR; }
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| NumericLiteralExpression { $$ = $1; }
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| tEMPTY { $$ = new_expression(ctx, EXPR_EMPTY, 0); CHECK_ERROR; }
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| tNULL { $$ = new_expression(ctx, EXPR_NULL, 0); CHECK_ERROR; }
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| tNOTHING { $$ = new_expression(ctx, EXPR_NOTHING, 0); CHECK_ERROR; }
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NumericLiteralExpression
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: '0' { $$ = new_long_expression(ctx, EXPR_INT, 0); CHECK_ERROR; }
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| tInt { $$ = new_long_expression(ctx, EXPR_INT, $1); CHECK_ERROR; }
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| tDouble { $$ = new_double_expression(ctx, $1); CHECK_ERROR; }
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IntegerValue
|
|
: '0' { $$ = 0; }
|
|
| tInt { $$ = $1; }
|
|
|
|
PrimaryExpression
|
|
: '(' Expression ')' { $$ = new_unary_expression(ctx, EXPR_BRACKETS, $2); }
|
|
| tME { $$ = new_expression(ctx, EXPR_ME, 0); CHECK_ERROR; }
|
|
|
|
ClassDeclaration
|
|
: tCLASS Identifier StSep ClassBody tEND tCLASS StSep { $4->name = $2; $$ = $4; }
|
|
|
|
ClassBody
|
|
: /* empty */ { $$ = new_class_decl(ctx); }
|
|
| FunctionDecl StSep ClassBody { $$ = add_class_function(ctx, $3, $1); CHECK_ERROR; }
|
|
/* FIXME: We should use DimDecl here to support arrays, but that conflicts with PropertyDecl. */
|
|
| Storage tIdentifier StSep ClassBody { dim_decl_t *dim_decl = new_dim_decl(ctx, $2, FALSE, NULL); CHECK_ERROR;
|
|
$$ = add_dim_prop(ctx, $4, dim_decl, $1); CHECK_ERROR; }
|
|
| tDIM DimDecl StSep ClassBody { $$ = add_dim_prop(ctx, $4, $2, 0); CHECK_ERROR; }
|
|
| PropertyDecl StSep ClassBody { $$ = add_class_function(ctx, $3, $1); CHECK_ERROR; }
|
|
|
|
PropertyDecl
|
|
: Storage_opt tPROPERTY tGET tIdentifier ArgumentsDecl_opt StSep StatementsNl_opt tEND tPROPERTY
|
|
{ $$ = new_function_decl(ctx, $4, FUNC_PROPGET, $1, $5, $7); CHECK_ERROR; }
|
|
| Storage_opt tPROPERTY tLET tIdentifier '(' ArgumentDecl ')' StSep StatementsNl_opt tEND tPROPERTY
|
|
{ $$ = new_function_decl(ctx, $4, FUNC_PROPLET, $1, $6, $9); CHECK_ERROR; }
|
|
| Storage_opt tPROPERTY tSET tIdentifier '(' ArgumentDecl ')' StSep StatementsNl_opt tEND tPROPERTY
|
|
{ $$ = new_function_decl(ctx, $4, FUNC_PROPSET, $1, $6, $9); CHECK_ERROR; }
|
|
|
|
FunctionDecl
|
|
: Storage_opt tSUB Identifier ArgumentsDecl_opt StSep StatementsNl_opt tEND tSUB
|
|
{ $$ = new_function_decl(ctx, $3, FUNC_SUB, $1, $4, $6); CHECK_ERROR; }
|
|
| Storage_opt tFUNCTION Identifier ArgumentsDecl_opt StSep StatementsNl_opt tEND tFUNCTION
|
|
{ $$ = new_function_decl(ctx, $3, FUNC_FUNCTION, $1, $4, $6); CHECK_ERROR; }
|
|
|
|
Storage_opt
|
|
: /* empty*/ { $$ = 0; }
|
|
| Storage { $$ = $1; }
|
|
|
|
Storage
|
|
: tPUBLIC tDEFAULT { $$ = STORAGE_IS_DEFAULT; }
|
|
| tPUBLIC { $$ = 0; }
|
|
| tPRIVATE { $$ = STORAGE_IS_PRIVATE; }
|
|
|
|
ArgumentsDecl_opt
|
|
: EmptyBrackets_opt { $$ = NULL; }
|
|
| '(' ArgumentDeclList ')' { $$ = $2; }
|
|
|
|
ArgumentDeclList
|
|
: ArgumentDecl { $$ = $1; }
|
|
| ArgumentDecl ',' ArgumentDeclList { $1->next = $3; $$ = $1; }
|
|
|
|
ArgumentDecl
|
|
: Identifier EmptyBrackets_opt { $$ = new_argument_decl(ctx, $1, TRUE); }
|
|
| tBYREF Identifier EmptyBrackets_opt { $$ = new_argument_decl(ctx, $2, TRUE); }
|
|
| tBYVAL Identifier EmptyBrackets_opt { $$ = new_argument_decl(ctx, $2, FALSE); }
|
|
|
|
/* these keywords may also be an identifier, depending on context */
|
|
Identifier
|
|
: tIdentifier { $$ = $1; }
|
|
| tDEFAULT { $$ = $1; }
|
|
| tERROR { $$ = $1; }
|
|
| tEXPLICIT { $$ = $1; }
|
|
| tPROPERTY { $$ = $1; }
|
|
| tSTEP { $$ = $1; }
|
|
|
|
/* most keywords can be an identifier after a dot */
|
|
DotIdentifier
|
|
: Identifier { $$ = $1; }
|
|
| tTRUE { $$ = $1; }
|
|
| tFALSE { $$ = $1; }
|
|
| tNOT { $$ = $1; }
|
|
| tAND { $$ = $1; }
|
|
| tOR { $$ = $1; }
|
|
| tXOR { $$ = $1; }
|
|
| tEQV { $$ = $1; }
|
|
| tIMP { $$ = $1; }
|
|
| tIS { $$ = $1; }
|
|
| tMOD { $$ = $1; }
|
|
| tCALL { $$ = $1; }
|
|
| tDIM { $$ = $1; }
|
|
| tSUB { $$ = $1; }
|
|
| tFUNCTION { $$ = $1; }
|
|
| tGET { $$ = $1; }
|
|
| tLET { $$ = $1; }
|
|
| tCONST { $$ = $1; }
|
|
| tIF { $$ = $1; }
|
|
| tELSE { $$ = $1; }
|
|
| tELSEIF { $$ = $1; }
|
|
| tEND { $$ = $1; }
|
|
| tTHEN { $$ = $1; }
|
|
| tEXIT { $$ = $1; }
|
|
| tWHILE { $$ = $1; }
|
|
| tWEND { $$ = $1; }
|
|
| tDO { $$ = $1; }
|
|
| tLOOP { $$ = $1; }
|
|
| tUNTIL { $$ = $1; }
|
|
| tFOR { $$ = $1; }
|
|
| tTO { $$ = $1; }
|
|
| tEACH { $$ = $1; }
|
|
| tIN { $$ = $1; }
|
|
| tSELECT { $$ = $1; }
|
|
| tCASE { $$ = $1; }
|
|
| tBYREF { $$ = $1; }
|
|
| tBYVAL { $$ = $1; }
|
|
| tOPTION { $$ = $1; }
|
|
| tNOTHING { $$ = $1; }
|
|
| tEMPTY { $$ = $1; }
|
|
| tNULL { $$ = $1; }
|
|
| tCLASS { $$ = $1; }
|
|
| tSET { $$ = $1; }
|
|
| tNEW { $$ = $1; }
|
|
| tPUBLIC { $$ = $1; }
|
|
| tPRIVATE { $$ = $1; }
|
|
| tNEXT { $$ = $1; }
|
|
| tON { $$ = $1; }
|
|
| tRESUME { $$ = $1; }
|
|
| tGOTO { $$ = $1; }
|
|
|
|
/* Most statements accept both new line and ':' as separators */
|
|
StSep
|
|
: tNL
|
|
| ':'
|
|
| tNL StSep
|
|
| ':' StSep
|
|
|
|
%%
|
|
|
|
static int parser_error(parser_ctx_t *ctx, const char *str)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static void source_add_statement(parser_ctx_t *ctx, statement_t *stat)
|
|
{
|
|
if(!stat)
|
|
return;
|
|
|
|
if(ctx->stats) {
|
|
ctx->stats_tail->next = stat;
|
|
ctx->stats_tail = stat;
|
|
}else {
|
|
ctx->stats = ctx->stats_tail = stat;
|
|
}
|
|
}
|
|
|
|
static void source_add_class(parser_ctx_t *ctx, class_decl_t *class_decl)
|
|
{
|
|
class_decl->next = ctx->class_decls;
|
|
ctx->class_decls = class_decl;
|
|
}
|
|
|
|
static void parse_complete(parser_ctx_t *ctx, BOOL option_explicit)
|
|
{
|
|
ctx->parse_complete = TRUE;
|
|
ctx->option_explicit = option_explicit;
|
|
}
|
|
|
|
static void *new_expression(parser_ctx_t *ctx, expression_type_t type, size_t size)
|
|
{
|
|
expression_t *expr;
|
|
|
|
expr = parser_alloc(ctx, size ? size : sizeof(*expr));
|
|
if(expr) {
|
|
expr->type = type;
|
|
expr->next = NULL;
|
|
}
|
|
|
|
return expr;
|
|
}
|
|
|
|
static expression_t *new_bool_expression(parser_ctx_t *ctx, VARIANT_BOOL value)
|
|
{
|
|
bool_expression_t *expr;
|
|
|
|
expr = new_expression(ctx, EXPR_BOOL, sizeof(*expr));
|
|
if(!expr)
|
|
return NULL;
|
|
|
|
expr->value = value;
|
|
return &expr->expr;
|
|
}
|
|
|
|
static expression_t *new_string_expression(parser_ctx_t *ctx, const WCHAR *value)
|
|
{
|
|
string_expression_t *expr;
|
|
|
|
expr = new_expression(ctx, EXPR_STRING, sizeof(*expr));
|
|
if(!expr)
|
|
return NULL;
|
|
|
|
expr->value = value;
|
|
return &expr->expr;
|
|
}
|
|
|
|
static expression_t *new_long_expression(parser_ctx_t *ctx, expression_type_t type, LONG value)
|
|
{
|
|
int_expression_t *expr;
|
|
|
|
expr = new_expression(ctx, type, sizeof(*expr));
|
|
if(!expr)
|
|
return NULL;
|
|
|
|
expr->value = value;
|
|
return &expr->expr;
|
|
}
|
|
|
|
static expression_t *new_double_expression(parser_ctx_t *ctx, double value)
|
|
{
|
|
double_expression_t *expr;
|
|
|
|
expr = new_expression(ctx, EXPR_DOUBLE, sizeof(*expr));
|
|
if(!expr)
|
|
return NULL;
|
|
|
|
expr->value = value;
|
|
return &expr->expr;
|
|
}
|
|
|
|
static expression_t *new_unary_expression(parser_ctx_t *ctx, expression_type_t type, expression_t *subexpr)
|
|
{
|
|
unary_expression_t *expr;
|
|
|
|
expr = new_expression(ctx, type, sizeof(*expr));
|
|
if(!expr)
|
|
return NULL;
|
|
|
|
expr->subexpr = subexpr;
|
|
return &expr->expr;
|
|
}
|
|
|
|
static expression_t *new_binary_expression(parser_ctx_t *ctx, expression_type_t type, expression_t *left, expression_t *right)
|
|
{
|
|
binary_expression_t *expr;
|
|
|
|
expr = new_expression(ctx, type, sizeof(*expr));
|
|
if(!expr)
|
|
return NULL;
|
|
|
|
expr->left = left;
|
|
expr->right = right;
|
|
return &expr->expr;
|
|
}
|
|
|
|
static member_expression_t *new_member_expression(parser_ctx_t *ctx, expression_t *obj_expr, const WCHAR *identifier)
|
|
{
|
|
member_expression_t *expr;
|
|
|
|
expr = new_expression(ctx, EXPR_MEMBER, sizeof(*expr));
|
|
if(!expr)
|
|
return NULL;
|
|
|
|
expr->obj_expr = obj_expr;
|
|
expr->identifier = identifier;
|
|
expr->args = NULL;
|
|
return expr;
|
|
}
|
|
|
|
static expression_t *new_new_expression(parser_ctx_t *ctx, const WCHAR *identifier)
|
|
{
|
|
string_expression_t *expr;
|
|
|
|
expr = new_expression(ctx, EXPR_NEW, sizeof(*expr));
|
|
if(!expr)
|
|
return NULL;
|
|
|
|
expr->value = identifier;
|
|
return &expr->expr;
|
|
}
|
|
|
|
static void *new_statement(parser_ctx_t *ctx, statement_type_t type, size_t size)
|
|
{
|
|
statement_t *stat;
|
|
|
|
stat = parser_alloc(ctx, size ? size : sizeof(*stat));
|
|
if(stat) {
|
|
stat->type = type;
|
|
stat->next = NULL;
|
|
}
|
|
|
|
return stat;
|
|
}
|
|
|
|
static statement_t *new_call_statement(parser_ctx_t *ctx, BOOL is_strict, member_expression_t *expr)
|
|
{
|
|
call_statement_t *stat;
|
|
|
|
stat = new_statement(ctx, STAT_CALL, sizeof(*stat));
|
|
if(!stat)
|
|
return NULL;
|
|
|
|
stat->expr = expr;
|
|
stat->is_strict = is_strict;
|
|
return &stat->stat;
|
|
}
|
|
|
|
static statement_t *new_assign_statement(parser_ctx_t *ctx, member_expression_t *left, expression_t *right)
|
|
{
|
|
assign_statement_t *stat;
|
|
|
|
stat = new_statement(ctx, STAT_ASSIGN, sizeof(*stat));
|
|
if(!stat)
|
|
return NULL;
|
|
|
|
stat->member_expr = left;
|
|
stat->value_expr = right;
|
|
return &stat->stat;
|
|
}
|
|
|
|
static statement_t *new_set_statement(parser_ctx_t *ctx, member_expression_t *left, expression_t *right)
|
|
{
|
|
assign_statement_t *stat;
|
|
|
|
stat = new_statement(ctx, STAT_SET, sizeof(*stat));
|
|
if(!stat)
|
|
return NULL;
|
|
|
|
stat->member_expr = left;
|
|
stat->value_expr = right;
|
|
return &stat->stat;
|
|
}
|
|
|
|
static dim_decl_t *new_dim_decl(parser_ctx_t *ctx, const WCHAR *name, BOOL is_array, dim_list_t *dims)
|
|
{
|
|
dim_decl_t *decl;
|
|
|
|
decl = parser_alloc(ctx, sizeof(*decl));
|
|
if(!decl)
|
|
return NULL;
|
|
|
|
decl->name = name;
|
|
decl->is_array = is_array;
|
|
decl->dims = dims;
|
|
decl->next = NULL;
|
|
return decl;
|
|
}
|
|
|
|
static dim_list_t *new_dim(parser_ctx_t *ctx, unsigned val, dim_list_t *next)
|
|
{
|
|
dim_list_t *ret;
|
|
|
|
ret = parser_alloc(ctx, sizeof(*ret));
|
|
if(!ret)
|
|
return NULL;
|
|
|
|
ret->val = val;
|
|
ret->next = next;
|
|
return ret;
|
|
}
|
|
|
|
static statement_t *new_dim_statement(parser_ctx_t *ctx, dim_decl_t *decls)
|
|
{
|
|
dim_statement_t *stat;
|
|
|
|
stat = new_statement(ctx, STAT_DIM, sizeof(*stat));
|
|
if(!stat)
|
|
return NULL;
|
|
|
|
stat->dim_decls = decls;
|
|
return &stat->stat;
|
|
}
|
|
|
|
static elseif_decl_t *new_elseif_decl(parser_ctx_t *ctx, expression_t *expr, statement_t *stat)
|
|
{
|
|
elseif_decl_t *decl;
|
|
|
|
decl = parser_alloc(ctx, sizeof(*decl));
|
|
if(!decl)
|
|
return NULL;
|
|
|
|
decl->expr = expr;
|
|
decl->stat = stat;
|
|
decl->next = NULL;
|
|
return decl;
|
|
}
|
|
|
|
static statement_t *new_while_statement(parser_ctx_t *ctx, statement_type_t type, expression_t *expr, statement_t *body)
|
|
{
|
|
while_statement_t *stat;
|
|
|
|
stat = new_statement(ctx, type, sizeof(*stat));
|
|
if(!stat)
|
|
return NULL;
|
|
|
|
stat->expr = expr;
|
|
stat->body = body;
|
|
return &stat->stat;
|
|
}
|
|
|
|
static statement_t *new_forto_statement(parser_ctx_t *ctx, const WCHAR *identifier, expression_t *from_expr,
|
|
expression_t *to_expr, expression_t *step_expr, statement_t *body)
|
|
{
|
|
forto_statement_t *stat;
|
|
|
|
stat = new_statement(ctx, STAT_FORTO, sizeof(*stat));
|
|
if(!stat)
|
|
return NULL;
|
|
|
|
stat->identifier = identifier;
|
|
stat->from_expr = from_expr;
|
|
stat->to_expr = to_expr;
|
|
stat->step_expr = step_expr;
|
|
stat->body = body;
|
|
return &stat->stat;
|
|
}
|
|
|
|
static statement_t *new_foreach_statement(parser_ctx_t *ctx, const WCHAR *identifier, expression_t *group_expr,
|
|
statement_t *body)
|
|
{
|
|
foreach_statement_t *stat;
|
|
|
|
stat = new_statement(ctx, STAT_FOREACH, sizeof(*stat));
|
|
if(!stat)
|
|
return NULL;
|
|
|
|
stat->identifier = identifier;
|
|
stat->group_expr = group_expr;
|
|
stat->body = body;
|
|
return &stat->stat;
|
|
}
|
|
|
|
static statement_t *new_if_statement(parser_ctx_t *ctx, expression_t *expr, statement_t *if_stat, elseif_decl_t *elseif_decl,
|
|
statement_t *else_stat)
|
|
{
|
|
if_statement_t *stat;
|
|
|
|
stat = new_statement(ctx, STAT_IF, sizeof(*stat));
|
|
if(!stat)
|
|
return NULL;
|
|
|
|
stat->expr = expr;
|
|
stat->if_stat = if_stat;
|
|
stat->elseifs = elseif_decl;
|
|
stat->else_stat = else_stat;
|
|
return &stat->stat;
|
|
}
|
|
|
|
static statement_t *new_select_statement(parser_ctx_t *ctx, expression_t *expr, case_clausule_t *case_clausules)
|
|
{
|
|
select_statement_t *stat;
|
|
|
|
stat = new_statement(ctx, STAT_SELECT, sizeof(*stat));
|
|
if(!stat)
|
|
return NULL;
|
|
|
|
stat->expr = expr;
|
|
stat->case_clausules = case_clausules;
|
|
return &stat->stat;
|
|
}
|
|
|
|
static case_clausule_t *new_case_clausule(parser_ctx_t *ctx, expression_t *expr, statement_t *stat, case_clausule_t *next)
|
|
{
|
|
case_clausule_t *ret;
|
|
|
|
ret = parser_alloc(ctx, sizeof(*ret));
|
|
if(!ret)
|
|
return NULL;
|
|
|
|
ret->expr = expr;
|
|
ret->stat = stat;
|
|
ret->next = next;
|
|
return ret;
|
|
}
|
|
|
|
static statement_t *new_onerror_statement(parser_ctx_t *ctx, BOOL resume_next)
|
|
{
|
|
onerror_statement_t *stat;
|
|
|
|
stat = new_statement(ctx, STAT_ONERROR, sizeof(*stat));
|
|
if(!stat)
|
|
return NULL;
|
|
|
|
stat->resume_next = resume_next;
|
|
return &stat->stat;
|
|
}
|
|
|
|
static arg_decl_t *new_argument_decl(parser_ctx_t *ctx, const WCHAR *name, BOOL by_ref)
|
|
{
|
|
arg_decl_t *arg_decl;
|
|
|
|
arg_decl = parser_alloc(ctx, sizeof(*arg_decl));
|
|
if(!arg_decl)
|
|
return NULL;
|
|
|
|
arg_decl->name = name;
|
|
arg_decl->by_ref = by_ref;
|
|
arg_decl->next = NULL;
|
|
return arg_decl;
|
|
}
|
|
|
|
static function_decl_t *new_function_decl(parser_ctx_t *ctx, const WCHAR *name, function_type_t type,
|
|
unsigned storage_flags, arg_decl_t *arg_decl, statement_t *body)
|
|
{
|
|
function_decl_t *decl;
|
|
|
|
if(storage_flags & STORAGE_IS_DEFAULT) {
|
|
if(type == FUNC_PROPGET) {
|
|
type = FUNC_DEFGET;
|
|
}else {
|
|
FIXME("Invalid default property\n");
|
|
ctx->hres = E_FAIL;
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
decl = parser_alloc(ctx, sizeof(*decl));
|
|
if(!decl)
|
|
return NULL;
|
|
|
|
decl->name = name;
|
|
decl->type = type;
|
|
decl->is_public = !(storage_flags & STORAGE_IS_PRIVATE);
|
|
decl->args = arg_decl;
|
|
decl->body = body;
|
|
decl->next = NULL;
|
|
decl->next_prop_func = NULL;
|
|
return decl;
|
|
}
|
|
|
|
static statement_t *new_function_statement(parser_ctx_t *ctx, function_decl_t *decl)
|
|
{
|
|
function_statement_t *stat;
|
|
|
|
stat = new_statement(ctx, STAT_FUNC, sizeof(*stat));
|
|
if(!stat)
|
|
return NULL;
|
|
|
|
stat->func_decl = decl;
|
|
return &stat->stat;
|
|
}
|
|
|
|
static class_decl_t *new_class_decl(parser_ctx_t *ctx)
|
|
{
|
|
class_decl_t *class_decl;
|
|
|
|
class_decl = parser_alloc(ctx, sizeof(*class_decl));
|
|
if(!class_decl)
|
|
return NULL;
|
|
|
|
class_decl->funcs = NULL;
|
|
class_decl->props = NULL;
|
|
class_decl->next = NULL;
|
|
return class_decl;
|
|
}
|
|
|
|
static class_decl_t *add_class_function(parser_ctx_t *ctx, class_decl_t *class_decl, function_decl_t *decl)
|
|
{
|
|
function_decl_t *iter;
|
|
|
|
for(iter = class_decl->funcs; iter; iter = iter->next) {
|
|
if(!wcsicmp(iter->name, decl->name)) {
|
|
if(decl->type == FUNC_SUB || decl->type == FUNC_FUNCTION) {
|
|
FIXME("Redefinition of %s::%s\n", debugstr_w(class_decl->name), debugstr_w(decl->name));
|
|
ctx->hres = E_FAIL;
|
|
return NULL;
|
|
}
|
|
|
|
while(1) {
|
|
if(iter->type == decl->type) {
|
|
FIXME("Redefinition of %s::%s\n", debugstr_w(class_decl->name), debugstr_w(decl->name));
|
|
ctx->hres = E_FAIL;
|
|
return NULL;
|
|
}
|
|
if(!iter->next_prop_func)
|
|
break;
|
|
iter = iter->next_prop_func;
|
|
}
|
|
|
|
iter->next_prop_func = decl;
|
|
return class_decl;
|
|
}
|
|
}
|
|
|
|
decl->next = class_decl->funcs;
|
|
class_decl->funcs = decl;
|
|
return class_decl;
|
|
}
|
|
|
|
static class_decl_t *add_dim_prop(parser_ctx_t *ctx, class_decl_t *class_decl, dim_decl_t *dim_decl, unsigned storage_flags)
|
|
{
|
|
if(storage_flags & STORAGE_IS_DEFAULT) {
|
|
FIXME("variant prop van't be default value\n");
|
|
ctx->hres = E_FAIL;
|
|
return NULL;
|
|
}
|
|
|
|
dim_decl->is_public = !(storage_flags & STORAGE_IS_PRIVATE);
|
|
dim_decl->next = class_decl->props;
|
|
class_decl->props = dim_decl;
|
|
return class_decl;
|
|
}
|
|
|
|
static const_decl_t *new_const_decl(parser_ctx_t *ctx, const WCHAR *name, expression_t *expr)
|
|
{
|
|
const_decl_t *decl;
|
|
|
|
decl = parser_alloc(ctx, sizeof(*decl));
|
|
if(!decl)
|
|
return NULL;
|
|
|
|
decl->name = name;
|
|
decl->value_expr = expr;
|
|
decl->next = NULL;
|
|
return decl;
|
|
}
|
|
|
|
static statement_t *new_const_statement(parser_ctx_t *ctx, const_decl_t *decls)
|
|
{
|
|
const_statement_t *stat;
|
|
|
|
stat = new_statement(ctx, STAT_CONST, sizeof(*stat));
|
|
if(!stat)
|
|
return NULL;
|
|
|
|
stat->decls = decls;
|
|
return &stat->stat;
|
|
}
|
|
|
|
static statement_t *link_statements(statement_t *head, statement_t *tail)
|
|
{
|
|
statement_t *iter;
|
|
|
|
for(iter = head; iter->next; iter = iter->next);
|
|
iter->next = tail;
|
|
|
|
return head;
|
|
}
|
|
|
|
void *parser_alloc(parser_ctx_t *ctx, size_t size)
|
|
{
|
|
void *ret;
|
|
|
|
ret = heap_pool_alloc(&ctx->heap, size);
|
|
if(!ret)
|
|
ctx->hres = E_OUTOFMEMORY;
|
|
return ret;
|
|
}
|
|
|
|
HRESULT parse_script(parser_ctx_t *ctx, const WCHAR *code, const WCHAR *delimiter)
|
|
{
|
|
static const WCHAR html_delimiterW[] = {'<','/','s','c','r','i','p','t','>',0};
|
|
|
|
ctx->code = ctx->ptr = code;
|
|
ctx->end = ctx->code + lstrlenW(ctx->code);
|
|
|
|
heap_pool_init(&ctx->heap);
|
|
|
|
ctx->parse_complete = FALSE;
|
|
ctx->hres = S_OK;
|
|
|
|
ctx->last_token = tNL;
|
|
ctx->last_nl = 0;
|
|
ctx->stats = ctx->stats_tail = NULL;
|
|
ctx->class_decls = NULL;
|
|
ctx->option_explicit = FALSE;
|
|
ctx->is_html = delimiter && !wcsicmp(delimiter, html_delimiterW);
|
|
|
|
parser_parse(ctx);
|
|
|
|
if(FAILED(ctx->hres))
|
|
return ctx->hres;
|
|
if(!ctx->parse_complete) {
|
|
FIXME("parser failed around %s\n", debugstr_w(ctx->code+20 > ctx->ptr ? ctx->code : ctx->ptr-20));
|
|
return E_FAIL;
|
|
}
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
void parser_release(parser_ctx_t *ctx)
|
|
{
|
|
heap_pool_free(&ctx->heap);
|
|
}
|