586 lines
17 KiB
C
586 lines
17 KiB
C
/*
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* Copyright 2008 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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typedef struct _source_elements_t source_elements_t;
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typedef struct _function_expression_t function_expression_t;
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typedef struct _expression_t expression_t;
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typedef struct _function_declaration_t {
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function_expression_t *expr;
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struct _function_declaration_t *next;
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} function_declaration_t;
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typedef struct _var_list_t {
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const WCHAR *identifier;
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struct _var_list_t *next;
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} var_list_t;
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typedef struct _func_stack {
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function_declaration_t *func_head;
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function_declaration_t *func_tail;
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var_list_t *var_head;
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var_list_t *var_tail;
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struct _func_stack *next;
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} func_stack_t;
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#define OP_LIST \
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X(add, 1, 0,0) \
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X(bool, 1, ARG_INT, 0) \
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X(bneg, 1, 0,0) \
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X(delete, 1, 0,0) \
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X(div, 1, 0,0) \
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X(double, 1, ARG_SBL, 0) \
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X(eq, 1, 0,0) \
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X(eq2, 1, 0,0) \
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X(gt, 1, 0,0) \
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X(gteq, 1, 0,0) \
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X(ident, 1, ARG_BSTR, 0) \
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X(in, 1, 0,0) \
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X(int, 1, ARG_INT, 0) \
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X(jmp, 0, ARG_ADDR, 0) \
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X(jmp_nz, 0, ARG_ADDR, 0) \
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X(jmp_z, 0, ARG_ADDR, 0) \
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X(lt, 1, 0,0) \
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X(lteq, 1, 0,0) \
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X(minus, 1, 0,0) \
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X(mod, 1, 0,0) \
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X(mul, 1, 0,0) \
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X(neg, 1, 0,0) \
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X(neq, 1, 0,0) \
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X(neq2, 1, 0,0) \
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X(new, 1, ARG_INT, 0) \
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X(null, 1, 0,0) \
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X(or, 1, 0,0) \
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X(pop, 1, 0,0) \
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X(regexp, 1, ARG_STR, ARG_INT) \
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X(str, 1, ARG_STR, 0) \
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X(this, 1, 0,0) \
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X(tonum, 1, 0,0) \
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X(tree, 1, ARG_EXPR, 0) \
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X(ret, 0, 0,0) \
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X(sub, 1, 0,0) \
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X(void, 1, 0,0) \
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X(xor, 1, 0,0)
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typedef enum {
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#define X(x,a,b,c) OP_##x,
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OP_LIST
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#undef X
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OP_LAST
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} jsop_t;
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typedef union {
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expression_t *expr;
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BSTR bstr;
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double *dbl;
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LONG lng;
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WCHAR *str;
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unsigned uint;
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} instr_arg_t;
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typedef enum {
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ARG_NONE = 0,
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ARG_ADDR,
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ARG_BSTR,
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ARG_EXPR,
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ARG_INT,
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ARG_STR
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} instr_arg_type_t;
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typedef struct {
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jsop_t op;
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instr_arg_t arg1;
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instr_arg_t arg2;
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} instr_t;
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typedef struct {
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instr_t *instrs;
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jsheap_t heap;
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BSTR *bstr_pool;
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unsigned bstr_pool_size;
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unsigned bstr_cnt;
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} bytecode_t;
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void release_bytecode(bytecode_t*);
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typedef struct _compiler_ctx_t compiler_ctx_t;
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void release_compiler(compiler_ctx_t*);
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typedef struct _parser_ctx_t {
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LONG ref;
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WCHAR *begin;
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const WCHAR *end;
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const WCHAR *ptr;
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script_ctx_t *script;
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source_elements_t *source;
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BOOL nl;
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BOOL is_html;
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BOOL lexer_error;
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HRESULT hres;
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jsheap_t heap;
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func_stack_t *func_stack;
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bytecode_t *code;
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compiler_ctx_t *compiler;
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struct _parser_ctx_t *next;
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} parser_ctx_t;
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HRESULT script_parse(script_ctx_t*,const WCHAR*,const WCHAR*,parser_ctx_t**) DECLSPEC_HIDDEN;
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void parser_release(parser_ctx_t*) DECLSPEC_HIDDEN;
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int parser_lex(void*,parser_ctx_t*) DECLSPEC_HIDDEN;
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static inline void parser_addref(parser_ctx_t *ctx)
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{
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ctx->ref++;
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}
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static inline void *parser_alloc(parser_ctx_t *ctx, DWORD size)
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{
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return jsheap_alloc(&ctx->heap, size);
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}
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static inline void *parser_alloc_tmp(parser_ctx_t *ctx, DWORD size)
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{
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return jsheap_alloc(&ctx->script->tmp_heap, size);
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}
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typedef struct _scope_chain_t {
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LONG ref;
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jsdisp_t *obj;
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struct _scope_chain_t *next;
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} scope_chain_t;
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HRESULT scope_push(scope_chain_t*,jsdisp_t*,scope_chain_t**) DECLSPEC_HIDDEN;
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void scope_release(scope_chain_t*) DECLSPEC_HIDDEN;
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static inline void scope_addref(scope_chain_t *scope)
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{
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scope->ref++;
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}
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struct _exec_ctx_t {
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LONG ref;
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parser_ctx_t *parser;
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scope_chain_t *scope_chain;
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jsdisp_t *var_disp;
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IDispatch *this_obj;
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BOOL is_global;
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VARIANT *stack;
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unsigned stack_size;
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unsigned top;
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unsigned ip;
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jsexcept_t ei;
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};
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static inline void exec_addref(exec_ctx_t *ctx)
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{
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ctx->ref++;
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}
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void exec_release(exec_ctx_t*) DECLSPEC_HIDDEN;
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HRESULT create_exec_ctx(script_ctx_t*,IDispatch*,jsdisp_t*,scope_chain_t*,BOOL,exec_ctx_t**) DECLSPEC_HIDDEN;
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HRESULT exec_source(exec_ctx_t*,parser_ctx_t*,source_elements_t*,BOOL,jsexcept_t*,VARIANT*) DECLSPEC_HIDDEN;
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typedef struct _statement_t statement_t;
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typedef struct _parameter_t parameter_t;
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HRESULT create_source_function(parser_ctx_t*,parameter_t*,source_elements_t*,scope_chain_t*,
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const WCHAR*,DWORD,jsdisp_t**) DECLSPEC_HIDDEN;
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typedef enum {
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LT_INT,
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LT_DOUBLE,
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LT_STRING,
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LT_BOOL,
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LT_NULL,
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LT_REGEXP
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}literal_type_t;
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typedef struct {
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literal_type_t type;
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union {
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LONG lval;
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double dval;
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const WCHAR *wstr;
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VARIANT_BOOL bval;
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struct {
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const WCHAR *str;
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DWORD str_len;
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DWORD flags;
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} regexp;
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} u;
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} literal_t;
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literal_t *parse_regexp(parser_ctx_t*) DECLSPEC_HIDDEN;
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literal_t *new_boolean_literal(parser_ctx_t*,VARIANT_BOOL) DECLSPEC_HIDDEN;
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typedef struct _variable_declaration_t {
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const WCHAR *identifier;
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expression_t *expr;
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struct _variable_declaration_t *next;
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} variable_declaration_t;
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typedef struct _return_type_t return_type_t;
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typedef HRESULT (*statement_eval_t)(script_ctx_t*,statement_t*,return_type_t*,VARIANT*);
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struct _statement_t {
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statement_eval_t eval;
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statement_t *next;
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};
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typedef struct {
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statement_t stat;
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statement_t *stat_list;
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} block_statement_t;
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typedef struct {
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statement_t stat;
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variable_declaration_t *variable_list;
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} var_statement_t;
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typedef struct {
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statement_t stat;
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expression_t *expr;
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} expression_statement_t;
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typedef struct {
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statement_t stat;
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expression_t *expr;
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statement_t *if_stat;
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statement_t *else_stat;
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} if_statement_t;
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typedef struct {
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statement_t stat;
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BOOL do_while;
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expression_t *expr;
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statement_t *statement;
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} while_statement_t;
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typedef struct {
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statement_t stat;
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variable_declaration_t *variable_list;
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expression_t *begin_expr;
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expression_t *expr;
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expression_t *end_expr;
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statement_t *statement;
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} for_statement_t;
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typedef struct {
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statement_t stat;
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variable_declaration_t *variable;
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expression_t *expr;
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expression_t *in_expr;
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statement_t *statement;
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} forin_statement_t;
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typedef struct {
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statement_t stat;
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const WCHAR *identifier;
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} branch_statement_t;
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typedef struct {
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statement_t stat;
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expression_t *expr;
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statement_t *statement;
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} with_statement_t;
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typedef struct {
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statement_t stat;
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const WCHAR *identifier;
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statement_t *statement;
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} labelled_statement_t;
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typedef struct _case_clausule_t {
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expression_t *expr;
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statement_t *stat;
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struct _case_clausule_t *next;
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} case_clausule_t;
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typedef struct {
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statement_t stat;
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expression_t *expr;
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case_clausule_t *case_list;
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} switch_statement_t;
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typedef struct {
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const WCHAR *identifier;
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statement_t *statement;
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} catch_block_t;
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typedef struct {
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statement_t stat;
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statement_t *try_statement;
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catch_block_t *catch_block;
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statement_t *finally_statement;
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} try_statement_t;
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HRESULT block_statement_eval(script_ctx_t*,statement_t*,return_type_t*,VARIANT*) DECLSPEC_HIDDEN;
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HRESULT var_statement_eval(script_ctx_t*,statement_t*,return_type_t*,VARIANT*) DECLSPEC_HIDDEN;
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HRESULT empty_statement_eval(script_ctx_t*,statement_t*,return_type_t*,VARIANT*) DECLSPEC_HIDDEN;
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HRESULT expression_statement_eval(script_ctx_t*,statement_t*,return_type_t*,VARIANT*) DECLSPEC_HIDDEN;
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HRESULT if_statement_eval(script_ctx_t*,statement_t*,return_type_t*,VARIANT*) DECLSPEC_HIDDEN;
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HRESULT while_statement_eval(script_ctx_t*,statement_t*,return_type_t*,VARIANT*) DECLSPEC_HIDDEN;
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HRESULT for_statement_eval(script_ctx_t*,statement_t*,return_type_t*,VARIANT*) DECLSPEC_HIDDEN;
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HRESULT forin_statement_eval(script_ctx_t*,statement_t*,return_type_t*,VARIANT*) DECLSPEC_HIDDEN;
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HRESULT continue_statement_eval(script_ctx_t*,statement_t*,return_type_t*,VARIANT*) DECLSPEC_HIDDEN;
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HRESULT break_statement_eval(script_ctx_t*,statement_t*,return_type_t*,VARIANT*) DECLSPEC_HIDDEN;
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HRESULT return_statement_eval(script_ctx_t*,statement_t*,return_type_t*,VARIANT*) DECLSPEC_HIDDEN;
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HRESULT with_statement_eval(script_ctx_t*,statement_t*,return_type_t*,VARIANT*) DECLSPEC_HIDDEN;
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HRESULT labelled_statement_eval(script_ctx_t*,statement_t*,return_type_t*,VARIANT*) DECLSPEC_HIDDEN;
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HRESULT switch_statement_eval(script_ctx_t*,statement_t*,return_type_t*,VARIANT*) DECLSPEC_HIDDEN;
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HRESULT throw_statement_eval(script_ctx_t*,statement_t*,return_type_t*,VARIANT*) DECLSPEC_HIDDEN;
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HRESULT try_statement_eval(script_ctx_t*,statement_t*,return_type_t*,VARIANT*) DECLSPEC_HIDDEN;
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typedef struct {
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enum {
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EXPRVAL_VARIANT,
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EXPRVAL_IDREF,
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EXPRVAL_INVALID
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} type;
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union {
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VARIANT var;
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struct {
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IDispatch *disp;
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DISPID id;
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} idref;
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BSTR identifier;
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} u;
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} exprval_t;
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typedef enum {
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EXPR_COMMA,
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EXPR_OR,
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EXPR_AND,
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EXPR_BOR,
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EXPR_BXOR,
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EXPR_BAND,
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EXPR_INSTANCEOF,
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EXPR_IN,
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EXPR_ADD,
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EXPR_SUB,
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EXPR_MUL,
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EXPR_DIV,
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EXPR_MOD,
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EXPR_DELETE,
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EXPR_VOID,
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EXPR_TYPEOF,
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EXPR_MINUS,
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EXPR_PLUS,
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EXPR_POSTINC,
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EXPR_POSTDEC,
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EXPR_PREINC,
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EXPR_PREDEC,
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EXPR_EQ,
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EXPR_EQEQ,
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EXPR_NOTEQ,
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EXPR_NOTEQEQ,
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EXPR_LESS,
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EXPR_LESSEQ,
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EXPR_GREATER,
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EXPR_GREATEREQ,
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EXPR_BITNEG,
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EXPR_LOGNEG,
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EXPR_LSHIFT,
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EXPR_RSHIFT,
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EXPR_RRSHIFT,
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EXPR_ASSIGN,
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EXPR_ASSIGNLSHIFT,
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EXPR_ASSIGNRSHIFT,
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EXPR_ASSIGNRRSHIFT,
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EXPR_ASSIGNADD,
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EXPR_ASSIGNSUB,
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EXPR_ASSIGNMUL,
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EXPR_ASSIGNDIV,
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EXPR_ASSIGNMOD,
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EXPR_ASSIGNAND,
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EXPR_ASSIGNOR,
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EXPR_ASSIGNXOR,
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EXPR_COND,
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EXPR_ARRAY,
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EXPR_MEMBER,
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EXPR_NEW,
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EXPR_CALL,
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EXPR_THIS,
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EXPR_FUNC,
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EXPR_IDENT,
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EXPR_ARRAYLIT,
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EXPR_PROPVAL,
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EXPR_LITERAL
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} expression_type_t;
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typedef HRESULT (*expression_eval_t)(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*);
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struct _expression_t {
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expression_type_t type;
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expression_eval_t eval;
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unsigned instr_off;
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};
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struct _parameter_t {
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const WCHAR *identifier;
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struct _parameter_t *next;
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};
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struct _source_elements_t {
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statement_t *statement;
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statement_t *statement_tail;
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function_declaration_t *functions;
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var_list_t *variables;
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};
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struct _function_expression_t {
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expression_t expr;
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const WCHAR *identifier;
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parameter_t *parameter_list;
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source_elements_t *source_elements;
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const WCHAR *src_str;
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DWORD src_len;
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};
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typedef struct {
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expression_t expr;
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expression_t *expression1;
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expression_t *expression2;
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} binary_expression_t;
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typedef struct {
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expression_t expr;
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expression_t *expression;
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} unary_expression_t;
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typedef struct {
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expression_t expr;
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expression_t *expression;
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expression_t *true_expression;
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expression_t *false_expression;
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} conditional_expression_t;
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typedef struct {
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expression_t expr;
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expression_t *member_expr;
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expression_t *expression;
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} array_expression_t;
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typedef struct {
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expression_t expr;
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expression_t *expression;
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const WCHAR *identifier;
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} member_expression_t;
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typedef struct _argument_t {
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expression_t *expr;
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struct _argument_t *next;
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} argument_t;
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typedef struct {
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expression_t expr;
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expression_t *expression;
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argument_t *argument_list;
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} call_expression_t;
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typedef struct {
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expression_t expr;
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const WCHAR *identifier;
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} identifier_expression_t;
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typedef struct {
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expression_t expr;
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literal_t *literal;
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} literal_expression_t;
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typedef struct _array_element_t {
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int elision;
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expression_t *expr;
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struct _array_element_t *next;
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} array_element_t;
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typedef struct {
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expression_t expr;
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array_element_t *element_list;
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int length;
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} array_literal_expression_t;
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typedef struct _prop_val_t {
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literal_t *name;
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expression_t *value;
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struct _prop_val_t *next;
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} prop_val_t;
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typedef struct {
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expression_t expr;
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prop_val_t *property_list;
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} property_value_expression_t;
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HRESULT function_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
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HRESULT array_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
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HRESULT member_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
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HRESULT call_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
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HRESULT identifier_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
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HRESULT array_literal_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
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HRESULT property_value_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
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HRESULT binary_and_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
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HRESULT instanceof_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
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HRESULT delete_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
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HRESULT typeof_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
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HRESULT post_increment_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
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HRESULT post_decrement_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
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HRESULT pre_increment_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
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HRESULT pre_decrement_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
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HRESULT left_shift_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
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HRESULT right_shift_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
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HRESULT right2_shift_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
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HRESULT assign_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
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HRESULT assign_lshift_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
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HRESULT assign_rshift_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
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HRESULT assign_rrshift_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
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HRESULT assign_add_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
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HRESULT assign_sub_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
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HRESULT assign_mul_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
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HRESULT assign_div_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
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HRESULT assign_mod_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
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HRESULT assign_and_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
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HRESULT assign_or_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
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HRESULT assign_xor_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
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HRESULT compiled_expression_eval(script_ctx_t*,expression_t*,DWORD,jsexcept_t*,exprval_t*) DECLSPEC_HIDDEN;
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HRESULT compile_subscript(parser_ctx_t*,expression_t*,unsigned*) DECLSPEC_HIDDEN;
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