/* * Copyright 2011 Jacek Caban for CodeWeavers * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA */ %{ #include "vbscript.h" #include "parse.h" #include "wine/debug.h" WINE_DEFAULT_DEBUG_CHANNEL(vbscript); #define YYLEX_PARAM ctx #define YYPARSE_PARAM ctx static int parser_error(const char*); static void parse_complete(parser_ctx_t*,BOOL); static void source_add_statement(parser_ctx_t*,statement_t*); static void source_add_class(parser_ctx_t*,class_decl_t*); static void *new_expression(parser_ctx_t*,expression_type_t,size_t); static expression_t *new_bool_expression(parser_ctx_t*,VARIANT_BOOL); static expression_t *new_string_expression(parser_ctx_t*,const WCHAR*); static expression_t *new_long_expression(parser_ctx_t*,expression_type_t,LONG); static expression_t *new_double_expression(parser_ctx_t*,double); static expression_t *new_unary_expression(parser_ctx_t*,expression_type_t,expression_t*); static expression_t *new_binary_expression(parser_ctx_t*,expression_type_t,expression_t*,expression_t*); static expression_t *new_new_expression(parser_ctx_t*,const WCHAR*); static member_expression_t *new_member_expression(parser_ctx_t*,expression_t*,const WCHAR*); static void *new_statement(parser_ctx_t*,statement_type_t,size_t); static statement_t *new_call_statement(parser_ctx_t*,member_expression_t*); static statement_t *new_assign_statement(parser_ctx_t*,member_expression_t*,expression_t*); static statement_t *new_set_statement(parser_ctx_t*,member_expression_t*,expression_t*); static statement_t *new_dim_statement(parser_ctx_t*,dim_decl_t*); static statement_t *new_while_statement(parser_ctx_t*,statement_type_t,expression_t*,statement_t*); static statement_t *new_forto_statement(parser_ctx_t*,const WCHAR*,expression_t*,expression_t*,expression_t*,statement_t*); 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*); static class_decl_t *add_variant_prop(parser_ctx_t*,class_decl_t*,const WCHAR*,unsigned); static statement_t *link_statements(statement_t*,statement_t*); #define STORAGE_IS_PRIVATE 1 #define STORAGE_IS_DEFAULT 2 #define CHECK_ERROR if(((parser_ctx_t*)ctx)->hres != S_OK) YYABORT %} %pure_parser %start Program %union { const WCHAR *string; statement_t *statement; expression_t *expression; member_expression_t *member; elseif_decl_t *elseif; dim_decl_t *dim_decl; 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; double dbl; } %token tEOF tNL tREM tEMPTYBRACKETS %token tTRUE tFALSE %token tNOT tAND tOR tXOR tEQV tIMP tNEQ %token tIS tLTEQ tGTEQ tMOD %token tCALL tDIM tSUB tFUNCTION tPROPERTY tGET tLET tCONST %token tIF tELSE tELSEIF tEND tTHEN tEXIT %token tWHILE tWEND tDO tLOOP tUNTIL tFOR tTO tSTEP %token tBYREF tBYVAL %token tOPTION tEXPLICIT %token tSTOP %token tNOTHING tEMPTY tNULL %token tCLASS tSET tNEW tPUBLIC tPRIVATE tDEFAULT tME %token tERROR tNEXT tON tRESUME tGOTO %token tIdentifier tString %token tLong tShort %token tDouble %type Statement SimpleStatement StatementNl StatementsNl StatementsNl_opt IfStatement Else_opt %type Expression LiteralExpression PrimaryExpression EqualityExpression CallExpression %type ConcatExpression AdditiveExpression ModExpression IntdivExpression MultiplicativeExpression ExpExpression %type NotExpression UnaryExpression AndExpression OrExpression XorExpression EqvExpression %type MemberExpression %type Arguments_opt ArgumentList_opt ArgumentList Step_opt %type OptionExplicit_opt DoType %type ArgumentsDecl_opt ArgumentDeclList ArgumentDecl %type FunctionDecl PropertyDecl %type ElseIfs_opt ElseIfs ElseIf %type ClassDeclaration ClassBody %type Storage Storage_opt %type DimDeclList %type ConstDecl ConstDeclList %% Program : OptionExplicit_opt SourceElements tEOF { parse_complete(ctx, $1); } OptionExplicit_opt : /* empty */ { $$ = FALSE; } | tOPTION tEXPLICIT tNL { $$ = TRUE; } SourceElements : /* empty */ | SourceElements StatementNl { source_add_statement(ctx, $2); } | SourceElements ClassDeclaration { source_add_class(ctx, $2); } StatementsNl_opt : /* empty */ { $$ = NULL; } | StatementsNl { $$ = $1; } StatementsNl : StatementNl { $$ = $1; } | StatementNl StatementsNl { $$ = link_statements($1, $2); } StatementNl : Statement tNL { $$ = $1; } Statement : ':' { $$ = NULL; } | ':' Statement { $$ = $2; } | SimpleStatement { $$ = $1; } | SimpleStatement ':' Statement { $1->next = $3; $$ = $1; } | SimpleStatement ':' { $$ = $1; } SimpleStatement : MemberExpression ArgumentList_opt { $1->args = $2; $$ = new_call_statement(ctx, $1); CHECK_ERROR; } | tCALL MemberExpression Arguments_opt { $2->args = $3; $$ = new_call_statement(ctx, $2); CHECK_ERROR; } | MemberExpression Arguments_opt '=' Expression { $1->args = $2; $$ = new_assign_statement(ctx, $1, $4); CHECK_ERROR; } | tDIM DimDeclList { $$ = new_dim_statement(ctx, $2); CHECK_ERROR; } | IfStatement { $$ = $1; } | tWHILE Expression tNL StatementsNl_opt tWEND { $$ = new_while_statement(ctx, STAT_WHILE, $2, $4); CHECK_ERROR; } | tDO DoType Expression tNL StatementsNl_opt tLOOP { $$ = new_while_statement(ctx, $2 ? STAT_WHILELOOP : STAT_UNTIL, $3, $5); CHECK_ERROR; } | tDO tNL StatementsNl_opt tLOOP DoType Expression { $$ = new_while_statement(ctx, $5 ? STAT_DOWHILE : STAT_DOUNTIL, $6, $3); CHECK_ERROR; } | FunctionDecl { $$ = new_function_statement(ctx, $1); CHECK_ERROR; } | tEXIT tDO { $$ = new_statement(ctx, STAT_EXITDO, 0); CHECK_ERROR; } | tEXIT tFUNCTION { $$ = new_statement(ctx, STAT_EXITFUNC, 0); CHECK_ERROR; } | tEXIT tPROPERTY { $$ = new_statement(ctx, STAT_EXITPROP, 0); CHECK_ERROR; } | tEXIT tSUB { $$ = new_statement(ctx, STAT_EXITSUB, 0); CHECK_ERROR; } | tSET MemberExpression Arguments_opt '=' Expression { $2->args = $3; $$ = new_set_statement(ctx, $2, $5); CHECK_ERROR; } | 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; } | tFOR tIdentifier '=' Expression tTO Expression Step_opt tNL StatementsNl_opt tNEXT { $$ = new_forto_statement(ctx, $2, $4, $6, $7, $9); CHECK_ERROR; } MemberExpression : tIdentifier { $$ = new_member_expression(ctx, NULL, $1); CHECK_ERROR; } | CallExpression '.' tIdentifier { $$ = new_member_expression(ctx, $1, $3); CHECK_ERROR; } DimDeclList /* FIXME: Support arrays */ : tIdentifier { $$ = 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; } Step_opt : /* empty */ { $$ = NULL;} | tSTEP Expression { $$ = $2; } IfStatement : tIF Expression tTHEN tNL StatementsNl ElseIfs_opt Else_opt tEND tIF { $$ = new_if_statement(ctx, $2, $5, $6, $7); CHECK_ERROR; } | tIF Expression tTHEN Statement { $$ = new_if_statement(ctx, $2, $4, NULL, NULL); CHECK_ERROR; } | tIF Expression tTHEN Statement tELSE Statement { $$ = new_if_statement(ctx, $2, $4, NULL, $6); CHECK_ERROR; } ElseIfs_opt : /* empty */ { $$ = NULL; } | ElseIfs { $$ = $1; } ElseIfs : ElseIf { $$ = $1; } | ElseIf ElseIfs { $1->next = $2; $$ = $1; } ElseIf : tELSEIF Expression tTHEN tNL StatementsNl { $$ = new_elseif_decl(ctx, $2, $5); } Else_opt : /* empty */ { $$ = NULL; } | tELSE tNL StatementsNl { $$ = $3; } Arguments_opt : EmptyBrackets_opt { $$ = NULL; } | '(' ArgumentList ')' { $$ = $2; } ArgumentList_opt : EmptyBrackets_opt { $$ = NULL; } | ArgumentList { $$ = $1; } ArgumentList : Expression { $$ = $1; } | Expression ',' ArgumentList { $1->next = $3; $$ = $1; } EmptyBrackets_opt : /* empty */ | tEMPTYBRACKETS Expression : EqvExpression { $$ = $1; } | Expression tIMP EqvExpression { $$ = new_binary_expression(ctx, EXPR_IMP, $1, $3); CHECK_ERROR; } EqvExpression : XorExpression { $$ = $1; } | EqvExpression tEQV XorExpression { $$ = new_binary_expression(ctx, EXPR_EQV, $1, $3); CHECK_ERROR; } XorExpression : OrExpression { $$ = $1; } | XorExpression tXOR OrExpression { $$ = new_binary_expression(ctx, EXPR_XOR, $1, $3); CHECK_ERROR; } OrExpression : AndExpression { $$ = $1; } | OrExpression tOR AndExpression { $$ = new_binary_expression(ctx, EXPR_OR, $1, $3); CHECK_ERROR; } AndExpression : NotExpression { $$ = $1; } | AndExpression tAND NotExpression { $$ = new_binary_expression(ctx, EXPR_AND, $1, $3); CHECK_ERROR; } NotExpression : EqualityExpression { $$ = $1; } | tNOT NotExpression { $$ = new_unary_expression(ctx, EXPR_NOT, $2); CHECK_ERROR; } EqualityExpression : ConcatExpression { $$ = $1; } | EqualityExpression '=' ConcatExpression { $$ = new_binary_expression(ctx, EXPR_EQUAL, $1, $3); CHECK_ERROR; } | EqualityExpression tNEQ ConcatExpression { $$ = new_binary_expression(ctx, EXPR_NEQUAL, $1, $3); CHECK_ERROR; } | EqualityExpression '>' ConcatExpression { $$ = new_binary_expression(ctx, EXPR_GT, $1, $3); CHECK_ERROR; } | EqualityExpression '<' ConcatExpression { $$ = new_binary_expression(ctx, EXPR_LT, $1, $3); CHECK_ERROR; } | EqualityExpression tGTEQ ConcatExpression { $$ = new_binary_expression(ctx, EXPR_GTEQ, $1, $3); CHECK_ERROR; } | EqualityExpression tLTEQ ConcatExpression { $$ = new_binary_expression(ctx, EXPR_LTEQ, $1, $3); CHECK_ERROR; } | EqualityExpression tIS ConcatExpression { $$ = new_binary_expression(ctx, EXPR_IS, $1, $3); CHECK_ERROR; } ConcatExpression : AdditiveExpression { $$ = $1; } | ConcatExpression '&' AdditiveExpression { $$ = new_binary_expression(ctx, EXPR_CONCAT, $1, $3); CHECK_ERROR; } AdditiveExpression : ModExpression { $$ = $1; } | AdditiveExpression '+' ModExpression { $$ = new_binary_expression(ctx, EXPR_ADD, $1, $3); CHECK_ERROR; } | AdditiveExpression '-' ModExpression { $$ = new_binary_expression(ctx, EXPR_SUB, $1, $3); CHECK_ERROR; } ModExpression : IntdivExpression { $$ = $1; } | ModExpression tMOD IntdivExpression { $$ = new_binary_expression(ctx, EXPR_MOD, $1, $3); CHECK_ERROR; } IntdivExpression : MultiplicativeExpression { $$ = $1; } | IntdivExpression '\\' MultiplicativeExpression { $$ = new_binary_expression(ctx, EXPR_IDIV, $1, $3); CHECK_ERROR; } MultiplicativeExpression : ExpExpression { $$ = $1; } | MultiplicativeExpression '*' ExpExpression { $$ = new_binary_expression(ctx, EXPR_MUL, $1, $3); CHECK_ERROR; } | MultiplicativeExpression '/' ExpExpression { $$ = new_binary_expression(ctx, EXPR_DIV, $1, $3); CHECK_ERROR; } ExpExpression : UnaryExpression { $$ = $1; } | ExpExpression '^' UnaryExpression { $$ = new_binary_expression(ctx, EXPR_EXP, $1, $3); CHECK_ERROR; } UnaryExpression : LiteralExpression { $$ = $1; } | CallExpression { $$ = $1; } | tNEW tIdentifier { $$ = new_new_expression(ctx, $2); CHECK_ERROR; } | '-' UnaryExpression { $$ = new_unary_expression(ctx, EXPR_NEG, $2); CHECK_ERROR; } CallExpression : PrimaryExpression { $$ = $1; } | MemberExpression Arguments_opt { $1->args = $2; $$ = &$1->expr; } LiteralExpression : tTRUE { $$ = new_bool_expression(ctx, VARIANT_TRUE); CHECK_ERROR; } | tFALSE { $$ = new_bool_expression(ctx, VARIANT_FALSE); CHECK_ERROR; } | tString { $$ = new_string_expression(ctx, $1); CHECK_ERROR; } | tShort { $$ = new_long_expression(ctx, EXPR_USHORT, $1); CHECK_ERROR; } | '0' { $$ = new_long_expression(ctx, EXPR_USHORT, 0); CHECK_ERROR; } | tLong { $$ = new_long_expression(ctx, EXPR_ULONG, $1); CHECK_ERROR; } | tDouble { $$ = new_double_expression(ctx, $1); CHECK_ERROR; } | tEMPTY { $$ = new_expression(ctx, EXPR_EMPTY, 0); CHECK_ERROR; } | tNULL { $$ = new_expression(ctx, EXPR_NULL, 0); CHECK_ERROR; } | tNOTHING { $$ = new_expression(ctx, EXPR_NOTHING, 0); CHECK_ERROR; } PrimaryExpression : '(' Expression ')' { $$ = $2; } | tME { $$ = new_expression(ctx, EXPR_ME, 0); CHECK_ERROR; } ClassDeclaration : tCLASS tIdentifier tNL ClassBody tEND tCLASS tNL { $4->name = $2; $$ = $4; } ClassBody : /* empty */ { $$ = new_class_decl(ctx); } | FunctionDecl tNL ClassBody { $$ = add_class_function(ctx, $3, $1); CHECK_ERROR; } | Storage tIdentifier tNL ClassBody { $$ = add_variant_prop(ctx, $4, $2, $1); CHECK_ERROR; } | PropertyDecl tNL ClassBody { $$ = add_class_function(ctx, $3, $1); CHECK_ERROR; } PropertyDecl : Storage_opt tPROPERTY tGET tIdentifier EmptyBrackets_opt tNL StatementsNl_opt tEND tPROPERTY { $$ = new_function_decl(ctx, $4, FUNC_PROPGET, $1, NULL, $7); CHECK_ERROR; } | Storage_opt tPROPERTY tLET tIdentifier '(' ArgumentDecl ')' tNL StatementsNl_opt tEND tPROPERTY { $$ = new_function_decl(ctx, $4, FUNC_PROPLET, $1, $6, $9); CHECK_ERROR; } | Storage_opt tPROPERTY tSET tIdentifier '(' ArgumentDecl ')' tNL StatementsNl_opt tEND tPROPERTY { $$ = new_function_decl(ctx, $4, FUNC_PROPSET, $1, $6, $9); CHECK_ERROR; } FunctionDecl : Storage_opt tSUB tIdentifier ArgumentsDecl_opt tNL StatementsNl_opt tEND tSUB { $$ = new_function_decl(ctx, $3, FUNC_SUB, $1, $4, $6); CHECK_ERROR; } | Storage_opt tFUNCTION tIdentifier ArgumentsDecl_opt tNL StatementsNl_opt tEND tFUNCTION { $$ = 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; $$ = $1; } ArgumentDecl : tIdentifier { $$ = new_argument_decl(ctx, $1, TRUE); } | tBYREF tIdentifier { $$ = new_argument_decl(ctx, $2, TRUE); } | tBYVAL tIdentifier { $$ = new_argument_decl(ctx, $2, FALSE); } %% static int parser_error(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, member_expression_t *expr) { call_statement_t *stat; stat = new_statement(ctx, STAT_CALL, sizeof(*stat)); if(!stat) return NULL; stat->expr = expr; 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, dim_decl_t *next) { dim_decl_t *decl; decl = parser_alloc(ctx, sizeof(*decl)); if(!decl) return NULL; decl->name = name; decl->next = next; return decl; } 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_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_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(!strcmpiW(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_variant_prop(parser_ctx_t *ctx, class_decl_t *class_decl, const WCHAR *identifier, unsigned storage_flags) { class_prop_decl_t *prop; if(storage_flags & STORAGE_IS_DEFAULT) { FIXME("variant prop van't be default value\n"); ctx->hres = E_FAIL; return NULL; } prop = parser_alloc(ctx, sizeof(*prop)); if(!prop) return NULL; prop->name = identifier; prop->is_public = !(storage_flags & STORAGE_IS_PRIVATE); prop->next = class_decl->props; class_decl->props = prop; 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 = vbsheap_alloc(&ctx->heap, size); if(!ret) ctx->hres = E_OUTOFMEMORY; return ret; } HRESULT parse_script(parser_ctx_t *ctx, const WCHAR *code) { ctx->code = ctx->ptr = code; ctx->end = ctx->code + strlenW(ctx->code); vbsheap_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; parser_parse(ctx); if(FAILED(ctx->hres)) return ctx->hres; if(!ctx->parse_complete) { FIXME("parser failed on parsing %s\n", debugstr_w(ctx->ptr)); return E_FAIL; } return S_OK; } void parser_release(parser_ctx_t *ctx) { vbsheap_free(&ctx->heap); }