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/*
* 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_foreach_statement(parser_ctx_t*,const WCHAR*,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 tEACH tIN
%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 <string> tIdentifier tString
%token <lng> tLong tShort
%token <dbl> tDouble
%type <statement> Statement SimpleStatement StatementNl StatementsNl StatementsNl_opt IfStatement Else_opt
%type <expression> Expression LiteralExpression PrimaryExpression EqualityExpression CallExpression
%type <expression> ConcatExpression AdditiveExpression ModExpression IntdivExpression MultiplicativeExpression ExpExpression
%type <expression> NotExpression UnaryExpression AndExpression OrExpression XorExpression EqvExpression
%type <member> MemberExpression
%type <expression> Arguments_opt ArgumentList_opt ArgumentList Step_opt
%type <bool> OptionExplicit_opt DoType
%type <arg_decl> ArgumentsDecl_opt ArgumentDeclList ArgumentDecl
%type <func_decl> FunctionDecl PropertyDecl
%type <elseif> ElseIfs_opt ElseIfs ElseIf
%type <class_decl> ClassDeclaration ClassBody
%type <uint> Storage Storage_opt
%type <dim_decl> DimDeclList
%type <const_decl> 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 tFOR { $$ = new_statement(ctx, STAT_EXITFOR, 0); CHECK_ERROR; }
| tEXIT tFUNCTION { $$ = 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; }
| tFOR tEACH tIdentifier tIN Expression tNL StatementsNl_opt tNEXT
{ $$ = new_foreach_statement(ctx, $3, $5, $7); }
MemberExpression
: tIdentifier { $$ = 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_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_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);
}
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