251 lines
7.3 KiB
C
251 lines
7.3 KiB
C
/*
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* Copyright 2008,2011 Jacek Caban for CodeWeavers
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#define OP_LIST \
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X(add, 1, 0,0) \
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X(and, 1, 0,0) \
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X(array, 1, 0,0) \
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X(assign, 1, 0,0) \
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X(assign_call,1, ARG_UINT, 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(call, 1, ARG_UINT, ARG_UINT) \
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X(call_member,1, ARG_UINT, ARG_UINT) \
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X(carray, 1, ARG_UINT, 0) \
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X(carray_set, 1, ARG_UINT, 0) \
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X(case, 0, ARG_ADDR, 0) \
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X(cnd_nz, 0, ARG_ADDR, 0) \
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X(cnd_z, 0, ARG_ADDR, 0) \
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X(delete, 1, 0,0) \
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X(delete_ident,1,ARG_BSTR, 0) \
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X(div, 1, 0,0) \
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X(double, 1, ARG_DBL, 0) \
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X(end_finally,0, 0,0) \
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X(enter_catch,1, ARG_BSTR, 0) \
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X(eq, 1, 0,0) \
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X(eq2, 1, 0,0) \
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X(forin, 0, ARG_ADDR, 0) \
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X(func, 1, ARG_UINT, 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(identid, 1, ARG_BSTR, ARG_INT) \
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X(in, 1, 0,0) \
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X(instanceof, 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_z, 0, ARG_ADDR, 0) \
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X(local, 1, ARG_INT, 0) \
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X(local_ref, 1, ARG_INT, ARG_UINT) \
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X(lshift, 1, 0,0) \
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X(lt, 1, 0,0) \
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X(lteq, 1, 0,0) \
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X(member, 1, ARG_BSTR, 0) \
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X(memberid, 1, ARG_UINT, 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_UINT, 0) \
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X(new_obj, 1, 0,0) \
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X(null, 1, 0,0) \
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X(obj_prop, 1, ARG_BSTR, 0) \
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X(or, 1, 0,0) \
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X(pop, 1, ARG_UINT, 0) \
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X(pop_except, 0, ARG_ADDR, 0) \
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X(pop_scope, 1, 0,0) \
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X(postinc, 1, ARG_INT, 0) \
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X(preinc, 1, ARG_INT, 0) \
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X(push_except,1, ARG_ADDR, ARG_UINT) \
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X(push_ret, 1, 0,0) \
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X(push_scope, 1, 0,0) \
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X(regexp, 1, ARG_STR, ARG_UINT) \
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X(rshift, 1, 0,0) \
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X(rshift2, 1, 0,0) \
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X(str, 1, ARG_STR, 0) \
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X(this, 1, 0,0) \
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X(throw, 0, 0,0) \
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X(throw_ref, 0, ARG_UINT, 0) \
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X(throw_type, 0, ARG_UINT, ARG_STR) \
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X(tonum, 1, 0,0) \
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X(typeof, 1, 0,0) \
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X(typeofid, 1, 0,0) \
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X(typeofident,1, 0,0) \
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X(refval, 1, 0,0) \
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X(ret, 0, ARG_UINT, 0) \
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X(setret, 1, 0,0) \
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X(sub, 1, 0,0) \
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X(undefined, 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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BSTR bstr;
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LONG lng;
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jsstr_t *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_DBL,
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ARG_FUNC,
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ARG_INT,
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ARG_STR,
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ARG_UINT
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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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union {
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instr_arg_t arg[2];
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double dbl;
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} u;
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} instr_t;
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typedef struct {
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BSTR name;
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int ref;
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} local_ref_t;
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typedef struct _function_code_t {
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BSTR name;
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int local_ref;
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BSTR event_target;
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unsigned instr_off;
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const WCHAR *source;
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unsigned source_len;
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unsigned func_cnt;
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struct _function_code_t *funcs;
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unsigned var_cnt;
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struct {
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BSTR name;
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int func_id; /* -1 if not a function */
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} *variables;
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unsigned param_cnt;
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BSTR *params;
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unsigned locals_cnt;
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local_ref_t *locals;
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} function_code_t;
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local_ref_t *lookup_local(const function_code_t*,const WCHAR*) DECLSPEC_HIDDEN;
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typedef struct _bytecode_t {
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LONG ref;
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instr_t *instrs;
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heap_pool_t heap;
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function_code_t global_code;
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WCHAR *source;
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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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jsstr_t **str_pool;
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unsigned str_pool_size;
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unsigned str_cnt;
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struct _bytecode_t *next;
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} bytecode_t;
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HRESULT compile_script(script_ctx_t*,const WCHAR*,const WCHAR*,const WCHAR*,BOOL,BOOL,bytecode_t**) DECLSPEC_HIDDEN;
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void release_bytecode(bytecode_t*) DECLSPEC_HIDDEN;
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static inline bytecode_t *bytecode_addref(bytecode_t *code)
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{
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code->ref++;
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return code;
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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 *jsobj;
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IDispatch *obj;
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struct _call_frame_t *frame;
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struct _scope_chain_t *next;
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} scope_chain_t;
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void scope_release(scope_chain_t*) DECLSPEC_HIDDEN;
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static inline scope_chain_t *scope_addref(scope_chain_t *scope)
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{
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scope->ref++;
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return scope;
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}
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typedef struct _except_frame_t except_frame_t;
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struct _parser_ctx_t;
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typedef struct _call_frame_t {
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unsigned ip;
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except_frame_t *except_frame;
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unsigned stack_base;
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scope_chain_t *scope;
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scope_chain_t *base_scope;
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jsval_t ret;
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IDispatch *this_obj;
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jsdisp_t *function_instance;
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jsdisp_t *variable_obj;
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jsdisp_t *arguments_obj;
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DWORD flags;
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unsigned argc;
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unsigned pop_locals;
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unsigned arguments_off;
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unsigned variables_off;
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unsigned pop_variables;
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bytecode_t *bytecode;
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function_code_t *function;
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struct _call_frame_t *prev_frame;
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} call_frame_t;
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#define EXEC_GLOBAL 0x0001
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#define EXEC_CONSTRUCTOR 0x0002
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#define EXEC_RETURN_TO_INTERP 0x0004
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#define EXEC_EVAL 0x0008
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HRESULT exec_source(script_ctx_t*,DWORD,bytecode_t*,function_code_t*,scope_chain_t*,IDispatch*,
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jsdisp_t*,jsdisp_t*,unsigned,jsval_t*,jsval_t*) DECLSPEC_HIDDEN;
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HRESULT create_source_function(script_ctx_t*,bytecode_t*,function_code_t*,scope_chain_t*,jsdisp_t**) DECLSPEC_HIDDEN;
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HRESULT setup_arguments_object(script_ctx_t*,call_frame_t*) DECLSPEC_HIDDEN;
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void detach_arguments_object(jsdisp_t*) DECLSPEC_HIDDEN;
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