Jacek Caban : vbscript: Added const statement parser implementation.
Module: wine Branch: master Commit: eb5e97a67f61b24e3b5f92bdb52923804b4d2c7d URL: http://source.winehq.org/git/wine.git/?a=commit;h=eb5e97a67f61b24e3b5f92bdb5... Author: Jacek Caban <jacek(a)codeweavers.com> Date: Wed Sep 21 14:03:18 2011 +0200 vbscript: Added const statement parser implementation. --- dlls/vbscript/lex.c | 2 ++ dlls/vbscript/parse.h | 12 ++++++++++++ dlls/vbscript/parser.y | 41 +++++++++++++++++++++++++++++++++++++++-- 3 files changed, 53 insertions(+), 2 deletions(-) diff --git a/dlls/vbscript/lex.c b/dlls/vbscript/lex.c index e0a9418..f42d2fd 100644 --- a/dlls/vbscript/lex.c +++ b/dlls/vbscript/lex.c @@ -31,6 +31,7 @@ static const WCHAR byrefW[] = {'b','y','r','e','f',0}; static const WCHAR byvalW[] = {'b','y','v','a','l',0}; static const WCHAR callW[] = {'c','a','l','l',0}; static const WCHAR classW[] = {'c','l','a','s','s',0}; +static const WCHAR constW[] = {'c','o','n','s','t',0}; static const WCHAR defaultW[] = {'d','e','f','a','u','l','t',0}; static const WCHAR dimW[] = {'d','i','m',0}; static const WCHAR doW[] = {'d','o',0}; @@ -85,6 +86,7 @@ static const struct { {byvalW, tBYVAL}, {callW, tCALL}, {classW, tCLASS}, + {constW, tCONST}, {defaultW, tDEFAULT}, {dimW, tDIM}, {doW, tDO}, diff --git a/dlls/vbscript/parse.h b/dlls/vbscript/parse.h index 976de53..8e4be57 100644 --- a/dlls/vbscript/parse.h +++ b/dlls/vbscript/parse.h @@ -98,6 +98,7 @@ typedef struct { typedef enum { STAT_ASSIGN, STAT_CALL, + STAT_CONST, STAT_DIM, STAT_DOUNTIL, STAT_DOWHILE, @@ -200,6 +201,17 @@ typedef struct { BOOL resume_next; } onerror_statement_t; +typedef struct _const_decl_t { + const WCHAR *name; + expression_t *value_expr; + struct _const_decl_t *next; +} const_decl_t; + +typedef struct { + statement_t stat; + const_decl_t *decls; +} const_statement_t; + typedef struct { const WCHAR *code; const WCHAR *ptr; diff --git a/dlls/vbscript/parser.y b/dlls/vbscript/parser.y index 728bd92..8435e92 100644 --- a/dlls/vbscript/parser.y +++ b/dlls/vbscript/parser.y @@ -25,7 +25,6 @@ WINE_DEFAULT_DEBUG_CHANNEL(vbscript); - #define YYLEX_PARAM ctx #define YYPARSE_PARAM ctx @@ -56,11 +55,13 @@ static statement_t *new_while_statement(parser_ctx_t*,statement_type_t,expressio static statement_t *new_if_statement(parser_ctx_t*,expression_t*,statement_t*,elseif_decl_t*,statement_t*); static statement_t *new_function_statement(parser_ctx_t*,function_decl_t*); static statement_t *new_onerror_statement(parser_ctx_t*,BOOL); +static statement_t *new_const_statement(parser_ctx_t*,const_decl_t*); static dim_decl_t *new_dim_decl(parser_ctx_t*,const WCHAR*,dim_decl_t*); static elseif_decl_t *new_elseif_decl(parser_ctx_t*,expression_t*,statement_t*); static function_decl_t *new_function_decl(parser_ctx_t*,const WCHAR*,function_type_t,unsigned,arg_decl_t*,statement_t*); static arg_decl_t *new_argument_decl(parser_ctx_t*,const WCHAR*,BOOL); +static const_decl_t *new_const_decl(parser_ctx_t*,const WCHAR*,expression_t*); static class_decl_t *new_class_decl(parser_ctx_t*); static class_decl_t *add_class_function(parser_ctx_t*,class_decl_t*,function_decl_t*); @@ -88,6 +89,7 @@ static statement_t *link_statements(statement_t*,statement_t*); function_decl_t *func_decl; arg_decl_t *arg_decl; class_decl_t *class_decl; + const_decl_t *const_decl; unsigned uint; LONG lng; BOOL bool; @@ -98,7 +100,7 @@ static statement_t *link_statements(statement_t*,statement_t*); %token tTRUE tFALSE %token tNOT tAND tOR tXOR tEQV tIMP tNEQ %token tIS tLTEQ tGTEQ tMOD -%token tCALL tDIM tSUB tFUNCTION tPROPERTY tGET tLET +%token tCALL tDIM tSUB tFUNCTION tPROPERTY tGET tLET tCONST %token tIF tELSE tELSEIF tEND tTHEN tEXIT %token tWHILE tWEND tDO tLOOP tUNTIL %token tBYREF tBYVAL @@ -124,6 +126,7 @@ static statement_t *link_statements(statement_t*,statement_t*); %type <class_decl> ClassDeclaration ClassBody %type <uint> Storage Storage_opt %type <dim_decl> DimDeclList +%type <const_decl> ConstDecl ConstDeclList %% @@ -182,6 +185,7 @@ SimpleStatement | tSTOP { $$ = new_statement(ctx, STAT_STOP, 0); CHECK_ERROR; } | tON tERROR tRESUME tNEXT { $$ = new_onerror_statement(ctx, TRUE); CHECK_ERROR; } | tON tERROR tGOTO '0' { $$ = new_onerror_statement(ctx, FALSE); CHECK_ERROR; } + | tCONST ConstDeclList { $$ = new_const_statement(ctx, $2); CHECK_ERROR; } MemberExpression : tIdentifier { $$ = new_member_expression(ctx, NULL, $1); CHECK_ERROR; } @@ -191,6 +195,13 @@ DimDeclList /* FIXME: Support arrays */ : tIdentifier { $$ = new_dim_decl(ctx, $1, NULL); CHECK_ERROR; } | tIdentifier ',' DimDeclList { $$ = new_dim_decl(ctx, $1, $3); CHECK_ERROR; } +ConstDeclList + : ConstDecl { $$ = $1; } + | ConstDecl ',' ConstDeclList { $1->next = $3; $$ = $1; } + +ConstDecl + : tIdentifier '=' LiteralExpression { $$ = new_const_decl(ctx, $1, $3); CHECK_ERROR; } + DoType : tWHILE { $$ = TRUE; } | tUNTIL { $$ = FALSE; } @@ -766,6 +777,32 @@ static class_decl_t *add_variant_prop(parser_ctx_t *ctx, class_decl_t *class_dec 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;
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Alexandre Julliard