/* * Copyright 2008,2011 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 "config.h" #include "wine/port.h" #include #include #include "jscript.h" #include "engine.h" #include "wine/debug.h" WINE_DEFAULT_DEBUG_CHANNEL(jscript); static const WCHAR booleanW[] = {'b','o','o','l','e','a','n',0}; static const WCHAR functionW[] = {'f','u','n','c','t','i','o','n',0}; static const WCHAR numberW[] = {'n','u','m','b','e','r',0}; static const WCHAR objectW[] = {'o','b','j','e','c','t',0}; static const WCHAR stringW[] = {'s','t','r','i','n','g',0}; static const WCHAR undefinedW[] = {'u','n','d','e','f','i','n','e','d',0}; static const WCHAR unknownW[] = {'u','n','k','n','o','w','n',0}; struct _except_frame_t { unsigned stack_top; scope_chain_t *scope; unsigned catch_off; BSTR ident; except_frame_t *next; }; typedef struct { enum { EXPRVAL_JSVAL, EXPRVAL_IDREF, EXPRVAL_STACK_REF, EXPRVAL_INVALID } type; union { jsval_t val; struct { IDispatch *disp; DISPID id; } idref; unsigned off; HRESULT hres; } u; } exprval_t; static HRESULT stack_push(script_ctx_t *ctx, jsval_t v) { if(!ctx->stack_size) { ctx->stack = heap_alloc(16*sizeof(*ctx->stack)); if(!ctx->stack) return E_OUTOFMEMORY; ctx->stack_size = 16; }else if(ctx->stack_size == ctx->stack_top) { jsval_t *new_stack; new_stack = heap_realloc(ctx->stack, ctx->stack_size*2*sizeof(*new_stack)); if(!new_stack) { jsval_release(v); return E_OUTOFMEMORY; } ctx->stack = new_stack; ctx->stack_size *= 2; } ctx->stack[ctx->stack_top++] = v; return S_OK; } static inline HRESULT stack_push_string(script_ctx_t *ctx, const WCHAR *str) { jsstr_t *v; v = jsstr_alloc(str); if(!v) return E_OUTOFMEMORY; return stack_push(ctx, jsval_string(v)); } static inline jsval_t stack_top(script_ctx_t *ctx) { assert(ctx->stack_top > ctx->call_ctx->stack_base); return ctx->stack[ctx->stack_top-1]; } static inline jsval_t *stack_top_ref(script_ctx_t *ctx, unsigned n) { assert(ctx->stack_top > ctx->call_ctx->stack_base+n); return ctx->stack+ctx->stack_top-1-n; } static inline jsval_t stack_topn(script_ctx_t *ctx, unsigned n) { return *stack_top_ref(ctx, n); } static inline jsval_t *stack_args(script_ctx_t *ctx, unsigned n) { if(!n) return NULL; assert(ctx->stack_top > ctx->call_ctx->stack_base+n-1); return ctx->stack + ctx->stack_top-n; } static inline jsval_t stack_pop(script_ctx_t *ctx) { assert(ctx->stack_top > ctx->call_ctx->stack_base); return ctx->stack[--ctx->stack_top]; } static void stack_popn(script_ctx_t *ctx, unsigned n) { while(n--) jsval_release(stack_pop(ctx)); } static HRESULT stack_pop_number(script_ctx_t *ctx, double *r) { jsval_t v; HRESULT hres; v = stack_pop(ctx); hres = to_number(ctx, v, r); jsval_release(v); return hres; } static HRESULT stack_pop_object(script_ctx_t *ctx, IDispatch **r) { jsval_t v; HRESULT hres; v = stack_pop(ctx); if(is_object_instance(v)) { if(!get_object(v)) return throw_type_error(ctx, JS_E_OBJECT_REQUIRED, NULL); *r = get_object(v); return S_OK; } hres = to_object(ctx, v, r); jsval_release(v); return hres; } static inline HRESULT stack_pop_int(script_ctx_t *ctx, INT *r) { return to_int32(ctx, stack_pop(ctx), r); } static inline HRESULT stack_pop_uint(script_ctx_t *ctx, DWORD *r) { return to_uint32(ctx, stack_pop(ctx), r); } static inline unsigned local_off(call_frame_t *frame, int ref) { return ref < 0 ? frame->arguments_off - ref-1 : frame->variables_off + ref; } static inline BSTR local_name(call_frame_t *frame, int ref) { return ref < 0 ? frame->function->params[-ref-1] : frame->function->variables[ref].name; } /* Steals input reference even on failure. */ static HRESULT stack_push_exprval(script_ctx_t *ctx, exprval_t *val) { HRESULT hres; switch(val->type) { case EXPRVAL_JSVAL: assert(0); case EXPRVAL_IDREF: hres = stack_push(ctx, jsval_disp(val->u.idref.disp)); if(SUCCEEDED(hres)) hres = stack_push(ctx, jsval_number(val->u.idref.id)); else IDispatch_Release(val->u.idref.disp); return hres; case EXPRVAL_STACK_REF: hres = stack_push(ctx, jsval_number(val->u.off)); if(SUCCEEDED(hres)) hres = stack_push(ctx, jsval_undefined()); return hres; case EXPRVAL_INVALID: hres = stack_push(ctx, jsval_undefined()); if(SUCCEEDED(hres)) hres = stack_push(ctx, jsval_number(val->u.hres)); return hres; } assert(0); return E_FAIL; } static BOOL stack_topn_exprval(script_ctx_t *ctx, unsigned n, exprval_t *r) { jsval_t v = stack_topn(ctx, n+1); switch(jsval_type(v)) { case JSV_NUMBER: { call_frame_t *frame = ctx->call_ctx; unsigned off = get_number(v); if(!frame->base_scope->frame && off >= frame->arguments_off) { DISPID id; BSTR name; HRESULT hres; /* Got stack reference in deoptimized code. Need to convert it back to variable object reference. */ assert(off < frame->variables_off + frame->function->var_cnt); name = off >= frame->variables_off ? frame->function->variables[off - frame->variables_off].name : frame->function->params[off - frame->arguments_off]; hres = jsdisp_get_id(ctx->call_ctx->base_scope->jsobj, name, 0, &id); if(FAILED(hres)) { r->type = EXPRVAL_INVALID; r->u.hres = hres; return FALSE; } *stack_top_ref(ctx, n+1) = jsval_obj(jsdisp_addref(frame->base_scope->jsobj)); *stack_top_ref(ctx, n) = jsval_number(id); r->type = EXPRVAL_IDREF; r->u.idref.disp = frame->base_scope->obj; r->u.idref.id = id; return TRUE; } r->type = EXPRVAL_STACK_REF; r->u.off = off; return TRUE; } case JSV_OBJECT: r->type = EXPRVAL_IDREF; r->u.idref.disp = get_object(v); assert(is_number(stack_topn(ctx, n))); r->u.idref.id = get_number(stack_topn(ctx, n)); return TRUE; case JSV_UNDEFINED: r->type = EXPRVAL_INVALID; assert(is_number(stack_topn(ctx, n))); r->u.hres = get_number(stack_topn(ctx, n)); return FALSE; default: assert(0); return FALSE; } } static inline BOOL stack_pop_exprval(script_ctx_t *ctx, exprval_t *r) { BOOL ret = stack_topn_exprval(ctx, 0, r); ctx->stack_top -= 2; return ret; } static HRESULT exprval_propput(script_ctx_t *ctx, exprval_t *ref, jsval_t v) { switch(ref->type) { case EXPRVAL_STACK_REF: { jsval_t *r = ctx->stack + ref->u.off; jsval_release(*r); return jsval_copy(v, r); } case EXPRVAL_IDREF: return disp_propput(ctx, ref->u.idref.disp, ref->u.idref.id, v); default: assert(0); return E_FAIL; } } static HRESULT exprval_propget(script_ctx_t *ctx, exprval_t *ref, jsval_t *r) { switch(ref->type) { case EXPRVAL_STACK_REF: return jsval_copy(ctx->stack[ref->u.off], r); case EXPRVAL_IDREF: return disp_propget(ctx, ref->u.idref.disp, ref->u.idref.id, r); default: assert(0); return E_FAIL; } } static HRESULT exprval_call(script_ctx_t *ctx, exprval_t *ref, WORD flags, unsigned argc, jsval_t *argv, jsval_t *r) { switch(ref->type) { case EXPRVAL_STACK_REF: { jsval_t v = ctx->stack[ref->u.off]; if(!is_object_instance(v)) { FIXME("invoke %s\n", debugstr_jsval(v)); return E_FAIL; } return disp_call_value(ctx, get_object(v), NULL, flags, argc, argv, r); } case EXPRVAL_IDREF: return disp_call(ctx, ref->u.idref.disp, ref->u.idref.id, flags, argc, argv, r); default: assert(0); return E_FAIL; } } /* ECMA-262 3rd Edition 8.7.1 */ /* Steals input reference. */ static HRESULT exprval_to_value(script_ctx_t *ctx, exprval_t *ref, jsval_t *r) { HRESULT hres; if(ref->type == EXPRVAL_JSVAL) { *r = ref->u.val; return S_OK; } hres = exprval_propget(ctx, ref, r); if(ref->type == EXPRVAL_IDREF) IDispatch_Release(ref->u.idref.disp); return hres; } static void exprval_release(exprval_t *val) { switch(val->type) { case EXPRVAL_JSVAL: jsval_release(val->u.val); return; case EXPRVAL_IDREF: if(val->u.idref.disp) IDispatch_Release(val->u.idref.disp); return; case EXPRVAL_STACK_REF: case EXPRVAL_INVALID: return; } } static inline void exprval_set_exception(exprval_t *val, HRESULT hres) { val->type = EXPRVAL_INVALID; val->u.hres = hres; } static inline void exprval_set_disp_ref(exprval_t *ref, IDispatch *obj, DISPID id) { ref->type = EXPRVAL_IDREF; IDispatch_AddRef(ref->u.idref.disp = obj); ref->u.idref.id = id; } static inline jsval_t steal_ret(call_frame_t *frame) { jsval_t r = frame->ret; frame->ret = jsval_undefined(); return r; } static inline void clear_ret(call_frame_t *frame) { jsval_release(steal_ret(frame)); } HRESULT scope_push(scope_chain_t *scope, jsdisp_t *jsobj, IDispatch *obj, scope_chain_t **ret) { scope_chain_t *new_scope; new_scope = heap_alloc(sizeof(scope_chain_t)); if(!new_scope) return E_OUTOFMEMORY; new_scope->ref = 1; IDispatch_AddRef(obj); new_scope->jsobj = jsobj; new_scope->obj = obj; new_scope->frame = NULL; new_scope->next = scope ? scope_addref(scope) : NULL; *ret = new_scope; return S_OK; } static void scope_pop(scope_chain_t **scope) { scope_chain_t *tmp; tmp = *scope; *scope = tmp->next; scope_release(tmp); } void clear_ei(script_ctx_t *ctx) { memset(&ctx->ei.ei, 0, sizeof(ctx->ei.ei)); jsval_release(ctx->ei.val); ctx->ei.val = jsval_undefined(); } void scope_release(scope_chain_t *scope) { if(--scope->ref) return; if(scope->next) scope_release(scope->next); IDispatch_Release(scope->obj); heap_free(scope); } static HRESULT disp_get_id(script_ctx_t *ctx, IDispatch *disp, const WCHAR *name, BSTR name_bstr, DWORD flags, DISPID *id) { IDispatchEx *dispex; jsdisp_t *jsdisp; BSTR bstr; HRESULT hres; jsdisp = iface_to_jsdisp(disp); if(jsdisp) { hres = jsdisp_get_id(jsdisp, name, flags, id); jsdisp_release(jsdisp); return hres; } if(name_bstr) { bstr = name_bstr; }else { bstr = SysAllocString(name); if(!bstr) return E_OUTOFMEMORY; } *id = 0; hres = IDispatch_QueryInterface(disp, &IID_IDispatchEx, (void**)&dispex); if(SUCCEEDED(hres)) { hres = IDispatchEx_GetDispID(dispex, bstr, make_grfdex(ctx, flags|fdexNameCaseSensitive), id); IDispatchEx_Release(dispex); }else { TRACE("using IDispatch\n"); hres = IDispatch_GetIDsOfNames(disp, &IID_NULL, &bstr, 1, 0, id); } if(name_bstr != bstr) SysFreeString(bstr); return hres; } static HRESULT disp_cmp(IDispatch *disp1, IDispatch *disp2, BOOL *ret) { IObjectIdentity *identity; IUnknown *unk1, *unk2; HRESULT hres; if(disp1 == disp2) { *ret = TRUE; return S_OK; } if(!disp1 || !disp2) { *ret = FALSE; return S_OK; } hres = IDispatch_QueryInterface(disp1, &IID_IUnknown, (void**)&unk1); if(FAILED(hres)) return hres; hres = IDispatch_QueryInterface(disp2, &IID_IUnknown, (void**)&unk2); if(FAILED(hres)) { IUnknown_Release(unk1); return hres; } if(unk1 == unk2) { *ret = TRUE; }else { hres = IUnknown_QueryInterface(unk1, &IID_IObjectIdentity, (void**)&identity); if(SUCCEEDED(hres)) { hres = IObjectIdentity_IsEqualObject(identity, unk2); IObjectIdentity_Release(identity); *ret = hres == S_OK; }else { *ret = FALSE; } } IUnknown_Release(unk1); IUnknown_Release(unk2); return S_OK; } /* ECMA-262 3rd Edition 11.9.6 */ static HRESULT equal2_values(jsval_t lval, jsval_t rval, BOOL *ret) { jsval_type_t type = jsval_type(lval); TRACE("\n"); if(type != jsval_type(rval)) { if(is_null_instance(lval)) *ret = is_null_instance(rval); else *ret = FALSE; return S_OK; } switch(type) { case JSV_UNDEFINED: case JSV_NULL: *ret = TRUE; break; case JSV_OBJECT: return disp_cmp(get_object(lval), get_object(rval), ret); case JSV_STRING: *ret = jsstr_eq(get_string(lval), get_string(rval)); break; case JSV_NUMBER: *ret = get_number(lval) == get_number(rval); break; case JSV_BOOL: *ret = !get_bool(lval) == !get_bool(rval); break; case JSV_VARIANT: FIXME("VARIANT not implemented\n"); return E_NOTIMPL; } return S_OK; } /* * Transfers local variables from stack to variable object. * It's slow, so we want to avoid it as much as possible. */ static HRESULT detach_variable_object(script_ctx_t *ctx, call_frame_t *frame, BOOL from_release) { unsigned i; HRESULT hres; if(!frame->base_scope || !frame->base_scope->frame) return S_OK; TRACE("detaching %p\n", frame); assert(frame == frame->base_scope->frame); assert(frame->variable_obj == frame->base_scope->jsobj); if(!from_release && !frame->arguments_obj) { hres = setup_arguments_object(ctx, frame); if(FAILED(hres)) return hres; } frame->base_scope->frame = NULL; for(i = 0; i < frame->function->locals_cnt; i++) { hres = jsdisp_propput_name(frame->variable_obj, frame->function->locals[i].name, ctx->stack[local_off(frame, frame->function->locals[i].ref)]); if(FAILED(hres)) return hres; } return S_OK; } static BOOL lookup_global_members(script_ctx_t *ctx, BSTR identifier, exprval_t *ret) { named_item_t *item; DISPID id; HRESULT hres; for(item = ctx->named_items; item; item = item->next) { if(item->flags & SCRIPTITEM_GLOBALMEMBERS) { hres = disp_get_id(ctx, item->disp, identifier, identifier, 0, &id); if(SUCCEEDED(hres)) { if(ret) exprval_set_disp_ref(ret, item->disp, id); return TRUE; } } } return FALSE; } static int local_ref_cmp(const void *key, const void *ref) { return strcmpW((const WCHAR*)key, ((const local_ref_t*)ref)->name); } local_ref_t *lookup_local(const function_code_t *function, const WCHAR *identifier) { return bsearch(identifier, function->locals, function->locals_cnt, sizeof(*function->locals), local_ref_cmp); } /* ECMA-262 3rd Edition 10.1.4 */ static HRESULT identifier_eval(script_ctx_t *ctx, BSTR identifier, exprval_t *ret) { scope_chain_t *scope; named_item_t *item; DISPID id = 0; HRESULT hres; TRACE("%s\n", debugstr_w(identifier)); if(ctx->call_ctx) { for(scope = ctx->call_ctx->scope; scope; scope = scope->next) { if(scope->frame) { function_code_t *func = scope->frame->function; local_ref_t *ref = lookup_local(func, identifier); static const WCHAR argumentsW[] = {'a','r','g','u','m','e','n','t','s',0}; if(ref) { ret->type = EXPRVAL_STACK_REF; ret->u.off = local_off(scope->frame, ref->ref); TRACE("returning ref %d for %d\n", ret->u.off, ref->ref); return S_OK; } if(!strcmpW(identifier, argumentsW)) { hres = detach_variable_object(ctx, scope->frame, FALSE); if(FAILED(hres)) return hres; } } if(scope->jsobj) hres = jsdisp_get_id(scope->jsobj, identifier, fdexNameImplicit, &id); else hres = disp_get_id(ctx, scope->obj, identifier, identifier, fdexNameImplicit, &id); if(SUCCEEDED(hres)) { exprval_set_disp_ref(ret, scope->obj, id); return S_OK; } } } hres = jsdisp_get_id(ctx->global, identifier, 0, &id); if(SUCCEEDED(hres)) { exprval_set_disp_ref(ret, to_disp(ctx->global), id); return S_OK; } for(item = ctx->named_items; item; item = item->next) { if((item->flags & SCRIPTITEM_ISVISIBLE) && !strcmpW(item->name, identifier)) { if(!item->disp) { IUnknown *unk; if(!ctx->site) break; hres = IActiveScriptSite_GetItemInfo(ctx->site, identifier, SCRIPTINFO_IUNKNOWN, &unk, NULL); if(FAILED(hres)) { WARN("GetItemInfo failed: %08x\n", hres); break; } hres = IUnknown_QueryInterface(unk, &IID_IDispatch, (void**)&item->disp); IUnknown_Release(unk); if(FAILED(hres)) { WARN("object does not implement IDispatch\n"); break; } } IDispatch_AddRef(item->disp); ret->type = EXPRVAL_JSVAL; ret->u.val = jsval_disp(item->disp); return S_OK; } } if(lookup_global_members(ctx, identifier, ret)) return S_OK; exprval_set_exception(ret, JS_E_UNDEFINED_VARIABLE); return S_OK; } static inline BSTR get_op_bstr(script_ctx_t *ctx, int i) { call_frame_t *frame = ctx->call_ctx; return frame->bytecode->instrs[frame->ip].u.arg[i].bstr; } static inline unsigned get_op_uint(script_ctx_t *ctx, int i) { call_frame_t *frame = ctx->call_ctx; return frame->bytecode->instrs[frame->ip].u.arg[i].uint; } static inline unsigned get_op_int(script_ctx_t *ctx, int i) { call_frame_t *frame = ctx->call_ctx; return frame->bytecode->instrs[frame->ip].u.arg[i].lng; } static inline jsstr_t *get_op_str(script_ctx_t *ctx, int i) { call_frame_t *frame = ctx->call_ctx; return frame->bytecode->instrs[frame->ip].u.arg[i].str; } static inline double get_op_double(script_ctx_t *ctx) { call_frame_t *frame = ctx->call_ctx; return frame->bytecode->instrs[frame->ip].u.dbl; } static inline void jmp_next(script_ctx_t *ctx) { ctx->call_ctx->ip++; } static inline void jmp_abs(script_ctx_t *ctx, unsigned dst) { ctx->call_ctx->ip = dst; } /* ECMA-262 3rd Edition 12.6.4 */ static HRESULT interp_forin(script_ctx_t *ctx) { const HRESULT arg = get_op_uint(ctx, 0); IDispatch *obj = NULL; IDispatchEx *dispex; exprval_t prop_ref; DISPID id; BSTR name = NULL; HRESULT hres; TRACE("\n"); assert(is_number(stack_top(ctx))); id = get_number(stack_top(ctx)); if(!stack_topn_exprval(ctx, 1, &prop_ref)) { FIXME("invalid ref: %08x\n", prop_ref.u.hres); return E_FAIL; } if(is_object_instance(stack_topn(ctx, 3))) obj = get_object(stack_topn(ctx, 3)); if(obj) { hres = IDispatch_QueryInterface(obj, &IID_IDispatchEx, (void**)&dispex); if(SUCCEEDED(hres)) { hres = IDispatchEx_GetNextDispID(dispex, fdexEnumDefault, id, &id); if(hres == S_OK) hres = IDispatchEx_GetMemberName(dispex, id, &name); IDispatchEx_Release(dispex); if(FAILED(hres)) return hres; }else { TRACE("No IDispatchEx\n"); } } if(name) { jsstr_t *str; str = jsstr_alloc_len(name, SysStringLen(name)); SysFreeString(name); if(!str) return E_OUTOFMEMORY; stack_pop(ctx); stack_push(ctx, jsval_number(id)); /* safe, just after pop() */ hres = exprval_propput(ctx, &prop_ref, jsval_string(str)); jsstr_release(str); if(FAILED(hres)) return hres; jmp_next(ctx); }else { stack_popn(ctx, 4); jmp_abs(ctx, arg); } return S_OK; } /* ECMA-262 3rd Edition 12.10 */ static HRESULT interp_push_scope(script_ctx_t *ctx) { IDispatch *disp; jsval_t v; HRESULT hres; TRACE("\n"); v = stack_pop(ctx); hres = to_object(ctx, v, &disp); jsval_release(v); if(FAILED(hres)) return hres; hres = scope_push(ctx->call_ctx->scope, to_jsdisp(disp), disp, &ctx->call_ctx->scope); IDispatch_Release(disp); return hres; } /* ECMA-262 3rd Edition 12.10 */ static HRESULT interp_pop_scope(script_ctx_t *ctx) { TRACE("\n"); scope_pop(&ctx->call_ctx->scope); return S_OK; } /* ECMA-262 3rd Edition 12.13 */ static HRESULT interp_case(script_ctx_t *ctx) { const unsigned arg = get_op_uint(ctx, 0); jsval_t v; BOOL b; HRESULT hres; TRACE("\n"); v = stack_pop(ctx); hres = equal2_values(stack_top(ctx), v, &b); jsval_release(v); if(FAILED(hres)) return hres; if(b) { stack_popn(ctx, 1); jmp_abs(ctx, arg); }else { jmp_next(ctx); } return S_OK; } /* ECMA-262 3rd Edition 12.13 */ static HRESULT interp_throw(script_ctx_t *ctx) { TRACE("\n"); jsval_release(ctx->ei.val); ctx->ei.val = stack_pop(ctx); return DISP_E_EXCEPTION; } static HRESULT interp_throw_ref(script_ctx_t *ctx) { const HRESULT arg = get_op_uint(ctx, 0); TRACE("%08x\n", arg); return throw_reference_error(ctx, arg, NULL); } static HRESULT interp_throw_type(script_ctx_t *ctx) { const HRESULT hres = get_op_uint(ctx, 0); jsstr_t *str = get_op_str(ctx, 1); const WCHAR *ptr; TRACE("%08x %s\n", hres, debugstr_jsstr(str)); ptr = jsstr_flatten(str); return ptr ? throw_type_error(ctx, hres, ptr) : E_OUTOFMEMORY; } /* ECMA-262 3rd Edition 12.14 */ static HRESULT interp_push_except(script_ctx_t *ctx) { const unsigned arg1 = get_op_uint(ctx, 0); const BSTR arg2 = get_op_bstr(ctx, 1); call_frame_t *frame = ctx->call_ctx; except_frame_t *except; unsigned stack_top; TRACE("\n"); stack_top = ctx->stack_top; if(!arg2) { HRESULT hres; hres = stack_push(ctx, jsval_bool(TRUE)); if(FAILED(hres)) return hres; hres = stack_push(ctx, jsval_bool(TRUE)); if(FAILED(hres)) return hres; } except = heap_alloc(sizeof(*except)); if(!except) return E_OUTOFMEMORY; except->stack_top = stack_top; except->scope = frame->scope; except->catch_off = arg1; except->ident = arg2; except->next = frame->except_frame; frame->except_frame = except; return S_OK; } /* ECMA-262 3rd Edition 12.14 */ static HRESULT interp_pop_except(script_ctx_t *ctx) { call_frame_t *frame = ctx->call_ctx; except_frame_t *except; TRACE("\n"); except = frame->except_frame; assert(except != NULL); frame->except_frame = except->next; heap_free(except); return S_OK; } /* ECMA-262 3rd Edition 12.14 */ static HRESULT interp_end_finally(script_ctx_t *ctx) { jsval_t v; TRACE("\n"); v = stack_pop(ctx); assert(is_bool(v)); if(!get_bool(v)) { TRACE("passing exception\n"); ctx->ei.val = stack_pop(ctx); return DISP_E_EXCEPTION; } stack_pop(ctx); return S_OK; } /* ECMA-262 3rd Edition 13 */ static HRESULT interp_func(script_ctx_t *ctx) { unsigned func_idx = get_op_uint(ctx, 0); call_frame_t *frame = ctx->call_ctx; jsdisp_t *dispex; HRESULT hres; TRACE("%d\n", func_idx); hres = create_source_function(ctx, frame->bytecode, frame->function->funcs+func_idx, frame->scope, &dispex); if(FAILED(hres)) return hres; return stack_push(ctx, jsval_obj(dispex)); } /* ECMA-262 3rd Edition 11.2.1 */ static HRESULT interp_array(script_ctx_t *ctx) { jsstr_t *name_str; const WCHAR *name; jsval_t v, namev; IDispatch *obj; DISPID id; HRESULT hres; TRACE("\n"); namev = stack_pop(ctx); hres = stack_pop_object(ctx, &obj); if(FAILED(hres)) { jsval_release(namev); return hres; } hres = to_flat_string(ctx, namev, &name_str, &name); jsval_release(namev); if(FAILED(hres)) { IDispatch_Release(obj); return hres; } hres = disp_get_id(ctx, obj, name, NULL, 0, &id); jsstr_release(name_str); if(SUCCEEDED(hres)) { hres = disp_propget(ctx, obj, id, &v); }else if(hres == DISP_E_UNKNOWNNAME) { v = jsval_undefined(); hres = S_OK; } IDispatch_Release(obj); if(FAILED(hres)) return hres; return stack_push(ctx, v); } /* ECMA-262 3rd Edition 11.2.1 */ static HRESULT interp_member(script_ctx_t *ctx) { const BSTR arg = get_op_bstr(ctx, 0); IDispatch *obj; jsval_t v; DISPID id; HRESULT hres; TRACE("\n"); hres = stack_pop_object(ctx, &obj); if(FAILED(hres)) return hres; hres = disp_get_id(ctx, obj, arg, arg, 0, &id); if(SUCCEEDED(hres)) { hres = disp_propget(ctx, obj, id, &v); }else if(hres == DISP_E_UNKNOWNNAME) { v = jsval_undefined(); hres = S_OK; } IDispatch_Release(obj); if(FAILED(hres)) return hres; return stack_push(ctx, v); } /* ECMA-262 3rd Edition 11.2.1 */ static HRESULT interp_memberid(script_ctx_t *ctx) { const unsigned arg = get_op_uint(ctx, 0); jsval_t objv, namev; const WCHAR *name; jsstr_t *name_str; IDispatch *obj; exprval_t ref; DISPID id; HRESULT hres; TRACE("%x\n", arg); namev = stack_pop(ctx); objv = stack_pop(ctx); hres = to_object(ctx, objv, &obj); jsval_release(objv); if(SUCCEEDED(hres)) { hres = to_flat_string(ctx, namev, &name_str, &name); if(FAILED(hres)) IDispatch_Release(obj); } jsval_release(namev); if(FAILED(hres)) return hres; hres = disp_get_id(ctx, obj, name, NULL, arg, &id); jsstr_release(name_str); if(SUCCEEDED(hres)) { ref.type = EXPRVAL_IDREF; ref.u.idref.disp = obj; ref.u.idref.id = id; }else { IDispatch_Release(obj); if(hres == DISP_E_UNKNOWNNAME && !(arg & fdexNameEnsure)) { exprval_set_exception(&ref, JS_E_INVALID_PROPERTY); hres = S_OK; }else { ERR("failed %08x\n", hres); return hres; } } return stack_push_exprval(ctx, &ref); } /* ECMA-262 3rd Edition 11.2.1 */ static HRESULT interp_refval(script_ctx_t *ctx) { exprval_t ref; jsval_t v; HRESULT hres; TRACE("\n"); if(!stack_topn_exprval(ctx, 0, &ref)) return throw_reference_error(ctx, JS_E_ILLEGAL_ASSIGN, NULL); hres = exprval_propget(ctx, &ref, &v); if(FAILED(hres)) return hres; return stack_push(ctx, v); } /* ECMA-262 3rd Edition 11.2.2 */ static HRESULT interp_new(script_ctx_t *ctx) { const unsigned argc = get_op_uint(ctx, 0); call_frame_t *frame = ctx->call_ctx; jsval_t constr; TRACE("%d\n", argc); constr = stack_topn(ctx, argc); /* NOTE: Should use to_object here */ if(is_null(constr)) return throw_type_error(ctx, JS_E_OBJECT_EXPECTED, NULL); else if(!is_object_instance(constr)) return throw_type_error(ctx, JS_E_INVALID_ACTION, NULL); else if(!get_object(constr)) return throw_type_error(ctx, JS_E_INVALID_PROPERTY, NULL); clear_ret(frame); return disp_call_value(ctx, get_object(constr), NULL, DISPATCH_CONSTRUCT | DISPATCH_JSCRIPT_CALLEREXECSSOURCE, argc, stack_args(ctx, argc), &frame->ret); } /* ECMA-262 3rd Edition 11.2.3 */ static HRESULT interp_call(script_ctx_t *ctx) { const unsigned argn = get_op_uint(ctx, 0); const int do_ret = get_op_int(ctx, 1); call_frame_t *frame = ctx->call_ctx; jsval_t obj; TRACE("%d %d\n", argn, do_ret); obj = stack_topn(ctx, argn); if(!is_object_instance(obj)) return throw_type_error(ctx, JS_E_INVALID_PROPERTY, NULL); clear_ret(frame); return disp_call_value(ctx, get_object(obj), NULL, DISPATCH_METHOD | DISPATCH_JSCRIPT_CALLEREXECSSOURCE, argn, stack_args(ctx, argn), do_ret ? &frame->ret : NULL); } /* ECMA-262 3rd Edition 11.2.3 */ static HRESULT interp_call_member(script_ctx_t *ctx) { const unsigned argn = get_op_uint(ctx, 0); const int do_ret = get_op_int(ctx, 1); call_frame_t *frame = ctx->call_ctx; exprval_t ref; TRACE("%d %d\n", argn, do_ret); if(!stack_topn_exprval(ctx, argn, &ref)) return throw_type_error(ctx, ref.u.hres, NULL); clear_ret(frame); return exprval_call(ctx, &ref, DISPATCH_METHOD | DISPATCH_JSCRIPT_CALLEREXECSSOURCE, argn, stack_args(ctx, argn), do_ret ? &frame->ret : NULL); } /* ECMA-262 3rd Edition 11.1.1 */ static HRESULT interp_this(script_ctx_t *ctx) { call_frame_t *frame = ctx->call_ctx; TRACE("\n"); IDispatch_AddRef(frame->this_obj); return stack_push(ctx, jsval_disp(frame->this_obj)); } static HRESULT interp_identifier_ref(script_ctx_t *ctx, BSTR identifier, unsigned flags) { exprval_t exprval; HRESULT hres; hres = identifier_eval(ctx, identifier, &exprval); if(FAILED(hres)) return hres; if(exprval.type == EXPRVAL_INVALID && (flags & fdexNameEnsure)) { DISPID id; hres = jsdisp_get_id(ctx->global, identifier, fdexNameEnsure, &id); if(FAILED(hres)) return hres; exprval_set_disp_ref(&exprval, to_disp(ctx->global), id); } if(exprval.type == EXPRVAL_JSVAL || exprval.type == EXPRVAL_INVALID) { WARN("invalid ref\n"); exprval_release(&exprval); exprval_set_exception(&exprval, JS_E_OBJECT_EXPECTED); } return stack_push_exprval(ctx, &exprval); } static HRESULT identifier_value(script_ctx_t *ctx, BSTR identifier) { exprval_t exprval; jsval_t v; HRESULT hres; hres = identifier_eval(ctx, identifier, &exprval); if(FAILED(hres)) return hres; if(exprval.type == EXPRVAL_INVALID) return throw_type_error(ctx, exprval.u.hres, identifier); hres = exprval_to_value(ctx, &exprval, &v); if(FAILED(hres)) return hres; return stack_push(ctx, v); } static HRESULT interp_local_ref(script_ctx_t *ctx) { const int arg = get_op_int(ctx, 0); const unsigned flags = get_op_uint(ctx, 1); call_frame_t *frame = ctx->call_ctx; exprval_t ref; TRACE("%d\n", arg); if(!frame->base_scope || !frame->base_scope->frame) return interp_identifier_ref(ctx, local_name(frame, arg), flags); ref.type = EXPRVAL_STACK_REF; ref.u.off = local_off(frame, arg); return stack_push_exprval(ctx, &ref); } static HRESULT interp_local(script_ctx_t *ctx) { const int arg = get_op_int(ctx, 0); call_frame_t *frame = ctx->call_ctx; jsval_t copy; HRESULT hres; TRACE("%d\n", arg); if(!frame->base_scope || !frame->base_scope->frame) return identifier_value(ctx, local_name(frame, arg)); hres = jsval_copy(ctx->stack[local_off(frame, arg)], ©); if(FAILED(hres)) return hres; return stack_push(ctx, copy); } /* ECMA-262 3rd Edition 10.1.4 */ static HRESULT interp_ident(script_ctx_t *ctx) { const BSTR arg = get_op_bstr(ctx, 0); TRACE("%s\n", debugstr_w(arg)); return identifier_value(ctx, arg); } /* ECMA-262 3rd Edition 10.1.4 */ static HRESULT interp_identid(script_ctx_t *ctx) { const BSTR arg = get_op_bstr(ctx, 0); const unsigned flags = get_op_uint(ctx, 1); TRACE("%s %x\n", debugstr_w(arg), flags); return interp_identifier_ref(ctx, arg, flags); } /* ECMA-262 3rd Edition 7.8.1 */ static HRESULT interp_null(script_ctx_t *ctx) { TRACE("\n"); return stack_push(ctx, jsval_null()); } /* ECMA-262 3rd Edition 7.8.2 */ static HRESULT interp_bool(script_ctx_t *ctx) { const int arg = get_op_int(ctx, 0); TRACE("%s\n", arg ? "true" : "false"); return stack_push(ctx, jsval_bool(arg)); } /* ECMA-262 3rd Edition 7.8.3 */ static HRESULT interp_int(script_ctx_t *ctx) { const int arg = get_op_int(ctx, 0); TRACE("%d\n", arg); return stack_push(ctx, jsval_number(arg)); } /* ECMA-262 3rd Edition 7.8.3 */ static HRESULT interp_double(script_ctx_t *ctx) { const double arg = get_op_double(ctx); TRACE("%lf\n", arg); return stack_push(ctx, jsval_number(arg)); } /* ECMA-262 3rd Edition 7.8.4 */ static HRESULT interp_str(script_ctx_t *ctx) { jsstr_t *str = get_op_str(ctx, 0); TRACE("%s\n", debugstr_jsstr(str)); return stack_push(ctx, jsval_string(jsstr_addref(str))); } /* ECMA-262 3rd Edition 7.8 */ static HRESULT interp_regexp(script_ctx_t *ctx) { jsstr_t *source = get_op_str(ctx, 0); const unsigned flags = get_op_uint(ctx, 1); jsdisp_t *regexp; HRESULT hres; TRACE("%s %x\n", debugstr_jsstr(source), flags); hres = create_regexp(ctx, source, flags, ®exp); if(FAILED(hres)) return hres; return stack_push(ctx, jsval_obj(regexp)); } /* ECMA-262 3rd Edition 11.1.4 */ static HRESULT interp_carray(script_ctx_t *ctx) { const unsigned arg = get_op_uint(ctx, 0); jsdisp_t *array; jsval_t val; unsigned i; HRESULT hres; TRACE("%u\n", arg); hres = create_array(ctx, arg, &array); if(FAILED(hres)) return hres; i = arg; while(i--) { val = stack_pop(ctx); hres = jsdisp_propput_idx(array, i, val); jsval_release(val); if(FAILED(hres)) { jsdisp_release(array); return hres; } } return stack_push(ctx, jsval_obj(array)); } /* ECMA-262 3rd Edition 11.1.5 */ static HRESULT interp_new_obj(script_ctx_t *ctx) { jsdisp_t *obj; HRESULT hres; TRACE("\n"); hres = create_object(ctx, NULL, &obj); if(FAILED(hres)) return hres; return stack_push(ctx, jsval_obj(obj)); } /* ECMA-262 3rd Edition 11.1.5 */ static HRESULT interp_obj_prop(script_ctx_t *ctx) { const BSTR name = get_op_bstr(ctx, 0); jsdisp_t *obj; jsval_t val; HRESULT hres; TRACE("%s\n", debugstr_w(name)); val = stack_pop(ctx); assert(is_object_instance(stack_top(ctx))); obj = as_jsdisp(get_object(stack_top(ctx))); hres = jsdisp_propput_name(obj, name, val); jsval_release(val); return hres; } /* ECMA-262 3rd Edition 11.11 */ static HRESULT interp_cnd_nz(script_ctx_t *ctx) { const unsigned arg = get_op_uint(ctx, 0); BOOL b; HRESULT hres; TRACE("\n"); hres = to_boolean(stack_top(ctx), &b); if(FAILED(hres)) return hres; if(b) { jmp_abs(ctx, arg); }else { stack_popn(ctx, 1); jmp_next(ctx); } return S_OK; } /* ECMA-262 3rd Edition 11.11 */ static HRESULT interp_cnd_z(script_ctx_t *ctx) { const unsigned arg = get_op_uint(ctx, 0); BOOL b; HRESULT hres; TRACE("\n"); hres = to_boolean(stack_top(ctx), &b); if(FAILED(hres)) return hres; if(b) { stack_popn(ctx, 1); jmp_next(ctx); }else { jmp_abs(ctx, arg); } return S_OK; } /* ECMA-262 3rd Edition 11.10 */ static HRESULT interp_or(script_ctx_t *ctx) { INT l, r; HRESULT hres; TRACE("\n"); hres = stack_pop_int(ctx, &r); if(FAILED(hres)) return hres; hres = stack_pop_int(ctx, &l); if(FAILED(hres)) return hres; return stack_push(ctx, jsval_number(l|r)); } /* ECMA-262 3rd Edition 11.10 */ static HRESULT interp_xor(script_ctx_t *ctx) { INT l, r; HRESULT hres; TRACE("\n"); hres = stack_pop_int(ctx, &r); if(FAILED(hres)) return hres; hres = stack_pop_int(ctx, &l); if(FAILED(hres)) return hres; return stack_push(ctx, jsval_number(l^r)); } /* ECMA-262 3rd Edition 11.10 */ static HRESULT interp_and(script_ctx_t *ctx) { INT l, r; HRESULT hres; TRACE("\n"); hres = stack_pop_int(ctx, &r); if(FAILED(hres)) return hres; hres = stack_pop_int(ctx, &l); if(FAILED(hres)) return hres; return stack_push(ctx, jsval_number(l&r)); } /* ECMA-262 3rd Edition 11.8.6 */ static HRESULT interp_instanceof(script_ctx_t *ctx) { jsdisp_t *obj, *iter, *tmp = NULL; jsval_t prot, v; BOOL ret = FALSE; HRESULT hres; static const WCHAR prototypeW[] = {'p','r','o','t','o','t', 'y', 'p','e',0}; v = stack_pop(ctx); if(!is_object_instance(v) || !get_object(v)) { jsval_release(v); return throw_type_error(ctx, JS_E_FUNCTION_EXPECTED, NULL); } obj = iface_to_jsdisp(get_object(v)); IDispatch_Release(get_object(v)); if(!obj) { FIXME("non-jsdisp objects not supported\n"); return E_FAIL; } if(is_class(obj, JSCLASS_FUNCTION)) { hres = jsdisp_propget_name(obj, prototypeW, &prot); }else { hres = throw_type_error(ctx, JS_E_FUNCTION_EXPECTED, NULL); } jsdisp_release(obj); if(FAILED(hres)) return hres; v = stack_pop(ctx); if(is_object_instance(prot)) { if(is_object_instance(v)) tmp = iface_to_jsdisp(get_object(v)); for(iter = tmp; !ret && iter; iter = iter->prototype) { hres = disp_cmp(get_object(prot), to_disp(iter), &ret); if(FAILED(hres)) break; } if(tmp) jsdisp_release(tmp); }else { FIXME("prototype is not an object\n"); hres = E_FAIL; } jsval_release(prot); jsval_release(v); if(FAILED(hres)) return hres; return stack_push(ctx, jsval_bool(ret)); } /* ECMA-262 3rd Edition 11.8.7 */ static HRESULT interp_in(script_ctx_t *ctx) { const WCHAR *str; jsstr_t *jsstr; jsval_t obj, v; DISPID id = 0; BOOL ret; HRESULT hres; TRACE("\n"); obj = stack_pop(ctx); if(!is_object_instance(obj) || !get_object(obj)) { jsval_release(obj); return throw_type_error(ctx, JS_E_OBJECT_EXPECTED, NULL); } v = stack_pop(ctx); hres = to_flat_string(ctx, v, &jsstr, &str); jsval_release(v); if(FAILED(hres)) { IDispatch_Release(get_object(obj)); return hres; } hres = disp_get_id(ctx, get_object(obj), str, NULL, 0, &id); IDispatch_Release(get_object(obj)); jsstr_release(jsstr); if(SUCCEEDED(hres)) ret = TRUE; else if(hres == DISP_E_UNKNOWNNAME) ret = FALSE; else return hres; return stack_push(ctx, jsval_bool(ret)); } /* ECMA-262 3rd Edition 11.6.1 */ static HRESULT add_eval(script_ctx_t *ctx, jsval_t lval, jsval_t rval, jsval_t *ret) { jsval_t r, l; HRESULT hres; hres = to_primitive(ctx, lval, &l, NO_HINT); if(FAILED(hres)) return hres; hres = to_primitive(ctx, rval, &r, NO_HINT); if(FAILED(hres)) { jsval_release(l); return hres; } if(is_string(l) || is_string(r)) { jsstr_t *lstr, *rstr = NULL; hres = to_string(ctx, l, &lstr); if(SUCCEEDED(hres)) hres = to_string(ctx, r, &rstr); if(SUCCEEDED(hres)) { jsstr_t *ret_str; ret_str = jsstr_concat(lstr, rstr); if(ret_str) *ret = jsval_string(ret_str); else hres = E_OUTOFMEMORY; } jsstr_release(lstr); if(rstr) jsstr_release(rstr); }else { double nl, nr; hres = to_number(ctx, l, &nl); if(SUCCEEDED(hres)) { hres = to_number(ctx, r, &nr); if(SUCCEEDED(hres)) *ret = jsval_number(nl+nr); } } jsval_release(r); jsval_release(l); return hres; } /* ECMA-262 3rd Edition 11.6.1 */ static HRESULT interp_add(script_ctx_t *ctx) { jsval_t l, r, ret; HRESULT hres; r = stack_pop(ctx); l = stack_pop(ctx); TRACE("%s + %s\n", debugstr_jsval(l), debugstr_jsval(r)); hres = add_eval(ctx, l, r, &ret); jsval_release(l); jsval_release(r); if(FAILED(hres)) return hres; return stack_push(ctx, ret); } /* ECMA-262 3rd Edition 11.6.2 */ static HRESULT interp_sub(script_ctx_t *ctx) { double l, r; HRESULT hres; TRACE("\n"); hres = stack_pop_number(ctx, &r); if(FAILED(hres)) return hres; hres = stack_pop_number(ctx, &l); if(FAILED(hres)) return hres; return stack_push(ctx, jsval_number(l-r)); } /* ECMA-262 3rd Edition 11.5.1 */ static HRESULT interp_mul(script_ctx_t *ctx) { double l, r; HRESULT hres; TRACE("\n"); hres = stack_pop_number(ctx, &r); if(FAILED(hres)) return hres; hres = stack_pop_number(ctx, &l); if(FAILED(hres)) return hres; return stack_push(ctx, jsval_number(l*r)); } /* ECMA-262 3rd Edition 11.5.2 */ static HRESULT interp_div(script_ctx_t *ctx) { double l, r; HRESULT hres; TRACE("\n"); hres = stack_pop_number(ctx, &r); if(FAILED(hres)) return hres; hres = stack_pop_number(ctx, &l); if(FAILED(hres)) return hres; return stack_push(ctx, jsval_number(l/r)); } /* ECMA-262 3rd Edition 11.5.3 */ static HRESULT interp_mod(script_ctx_t *ctx) { double l, r; HRESULT hres; TRACE("\n"); hres = stack_pop_number(ctx, &r); if(FAILED(hres)) return hres; hres = stack_pop_number(ctx, &l); if(FAILED(hres)) return hres; return stack_push(ctx, jsval_number(fmod(l, r))); } /* ECMA-262 3rd Edition 11.4.2 */ static HRESULT interp_delete(script_ctx_t *ctx) { jsval_t objv, namev; IDispatch *obj; jsstr_t *name; BOOL ret; HRESULT hres; TRACE("\n"); namev = stack_pop(ctx); objv = stack_pop(ctx); hres = to_object(ctx, objv, &obj); jsval_release(objv); if(FAILED(hres)) { jsval_release(namev); return hres; } hres = to_string(ctx, namev, &name); jsval_release(namev); if(FAILED(hres)) { IDispatch_Release(obj); return hres; } hres = disp_delete_name(ctx, obj, name, &ret); IDispatch_Release(obj); jsstr_release(name); if(FAILED(hres)) return hres; return stack_push(ctx, jsval_bool(ret)); } /* ECMA-262 3rd Edition 11.4.2 */ static HRESULT interp_delete_ident(script_ctx_t *ctx) { const BSTR arg = get_op_bstr(ctx, 0); exprval_t exprval; BOOL ret; HRESULT hres; TRACE("%s\n", debugstr_w(arg)); hres = identifier_eval(ctx, arg, &exprval); if(FAILED(hres)) return hres; switch(exprval.type) { case EXPRVAL_STACK_REF: ret = FALSE; break; case EXPRVAL_IDREF: hres = disp_delete(exprval.u.idref.disp, exprval.u.idref.id, &ret); IDispatch_Release(exprval.u.idref.disp); if(FAILED(hres)) return hres; break; case EXPRVAL_INVALID: ret = TRUE; break; default: FIXME("Unsupported exprval\n"); exprval_release(&exprval); return E_NOTIMPL; } return stack_push(ctx, jsval_bool(ret)); } /* ECMA-262 3rd Edition 11.4.2 */ static HRESULT interp_void(script_ctx_t *ctx) { TRACE("\n"); stack_popn(ctx, 1); return stack_push(ctx, jsval_undefined()); } /* ECMA-262 3rd Edition 11.4.3 */ static HRESULT typeof_string(jsval_t v, const WCHAR **ret) { switch(jsval_type(v)) { case JSV_UNDEFINED: *ret = undefinedW; break; case JSV_NULL: *ret = objectW; break; case JSV_OBJECT: { jsdisp_t *dispex; if(get_object(v) && (dispex = iface_to_jsdisp(get_object(v)))) { *ret = is_class(dispex, JSCLASS_FUNCTION) ? functionW : objectW; jsdisp_release(dispex); }else { *ret = objectW; } break; } case JSV_STRING: *ret = stringW; break; case JSV_NUMBER: *ret = numberW; break; case JSV_BOOL: *ret = booleanW; break; case JSV_VARIANT: FIXME("unhandled variant %s\n", debugstr_variant(get_variant(v))); return E_NOTIMPL; } return S_OK; } /* ECMA-262 3rd Edition 11.4.3 */ static HRESULT interp_typeofid(script_ctx_t *ctx) { const WCHAR *ret; exprval_t ref; jsval_t v; HRESULT hres; TRACE("\n"); if(!stack_pop_exprval(ctx, &ref)) return stack_push(ctx, jsval_string(jsstr_undefined())); hres = exprval_propget(ctx, &ref, &v); exprval_release(&ref); if(FAILED(hres)) return stack_push_string(ctx, unknownW); hres = typeof_string(v, &ret); jsval_release(v); if(FAILED(hres)) return hres; return stack_push_string(ctx, ret); } /* ECMA-262 3rd Edition 11.4.3 */ static HRESULT interp_typeofident(script_ctx_t *ctx) { const BSTR arg = get_op_bstr(ctx, 0); exprval_t exprval; const WCHAR *ret; jsval_t v; HRESULT hres; TRACE("%s\n", debugstr_w(arg)); hres = identifier_eval(ctx, arg, &exprval); if(FAILED(hres)) return hres; if(exprval.type == EXPRVAL_INVALID) return stack_push(ctx, jsval_string(jsstr_undefined())); hres = exprval_to_value(ctx, &exprval, &v); if(FAILED(hres)) return hres; hres = typeof_string(v, &ret); jsval_release(v); if(FAILED(hres)) return hres; return stack_push_string(ctx, ret); } /* ECMA-262 3rd Edition 11.4.3 */ static HRESULT interp_typeof(script_ctx_t *ctx) { const WCHAR *ret; jsval_t v; HRESULT hres; TRACE("\n"); v = stack_pop(ctx); hres = typeof_string(v, &ret); jsval_release(v); if(FAILED(hres)) return hres; return stack_push_string(ctx, ret); } /* ECMA-262 3rd Edition 11.4.7 */ static HRESULT interp_minus(script_ctx_t *ctx) { double n; HRESULT hres; TRACE("\n"); hres = stack_pop_number(ctx, &n); if(FAILED(hres)) return hres; return stack_push(ctx, jsval_number(-n)); } /* ECMA-262 3rd Edition 11.4.6 */ static HRESULT interp_tonum(script_ctx_t *ctx) { jsval_t v; double n; HRESULT hres; TRACE("\n"); v = stack_pop(ctx); hres = to_number(ctx, v, &n); jsval_release(v); if(FAILED(hres)) return hres; return stack_push(ctx, jsval_number(n)); } /* ECMA-262 3rd Edition 11.3.1 */ static HRESULT interp_postinc(script_ctx_t *ctx) { const int arg = get_op_int(ctx, 0); exprval_t ref; jsval_t v; HRESULT hres; TRACE("%d\n", arg); if(!stack_pop_exprval(ctx, &ref)) return throw_type_error(ctx, JS_E_OBJECT_EXPECTED, NULL); hres = exprval_propget(ctx, &ref, &v); if(SUCCEEDED(hres)) { double n; hres = to_number(ctx, v, &n); if(SUCCEEDED(hres)) hres = exprval_propput(ctx, &ref, jsval_number(n+(double)arg)); if(FAILED(hres)) jsval_release(v); } exprval_release(&ref); if(FAILED(hres)) return hres; return stack_push(ctx, v); } /* ECMA-262 3rd Edition 11.4.4, 11.4.5 */ static HRESULT interp_preinc(script_ctx_t *ctx) { const int arg = get_op_int(ctx, 0); exprval_t ref; double ret; jsval_t v; HRESULT hres; TRACE("%d\n", arg); if(!stack_pop_exprval(ctx, &ref)) return throw_type_error(ctx, JS_E_OBJECT_EXPECTED, NULL); hres = exprval_propget(ctx, &ref, &v); if(SUCCEEDED(hres)) { double n; hres = to_number(ctx, v, &n); jsval_release(v); if(SUCCEEDED(hres)) { ret = n+(double)arg; hres = exprval_propput(ctx, &ref, jsval_number(ret)); } } exprval_release(&ref); if(FAILED(hres)) return hres; return stack_push(ctx, jsval_number(ret)); } /* ECMA-262 3rd Edition 11.9.3 */ static HRESULT equal_values(script_ctx_t *ctx, jsval_t lval, jsval_t rval, BOOL *ret) { if(jsval_type(lval) == jsval_type(rval) || (is_number(lval) && is_number(rval))) return equal2_values(lval, rval, ret); /* FIXME: NULL disps should be handled in more general way */ if(is_object_instance(lval) && !get_object(lval)) return equal_values(ctx, jsval_null(), rval, ret); if(is_object_instance(rval) && !get_object(rval)) return equal_values(ctx, lval, jsval_null(), ret); if((is_null(lval) && is_undefined(rval)) || (is_undefined(lval) && is_null(rval))) { *ret = TRUE; return S_OK; } if(is_string(lval) && is_number(rval)) { double n; HRESULT hres; hres = to_number(ctx, lval, &n); if(FAILED(hres)) return hres; /* FIXME: optimize */ return equal_values(ctx, jsval_number(n), rval, ret); } if(is_string(rval) && is_number(lval)) { double n; HRESULT hres; hres = to_number(ctx, rval, &n); if(FAILED(hres)) return hres; /* FIXME: optimize */ return equal_values(ctx, lval, jsval_number(n), ret); } if(is_bool(rval)) return equal_values(ctx, lval, jsval_number(get_bool(rval) ? 1 : 0), ret); if(is_bool(lval)) return equal_values(ctx, jsval_number(get_bool(lval) ? 1 : 0), rval, ret); if(is_object_instance(rval) && (is_string(lval) || is_number(lval))) { jsval_t prim; HRESULT hres; hres = to_primitive(ctx, rval, &prim, NO_HINT); if(FAILED(hres)) return hres; hres = equal_values(ctx, lval, prim, ret); jsval_release(prim); return hres; } if(is_object_instance(lval) && (is_string(rval) || is_number(rval))) { jsval_t prim; HRESULT hres; hres = to_primitive(ctx, lval, &prim, NO_HINT); if(FAILED(hres)) return hres; hres = equal_values(ctx, prim, rval, ret); jsval_release(prim); return hres; } *ret = FALSE; return S_OK; } /* ECMA-262 3rd Edition 11.9.1 */ static HRESULT interp_eq(script_ctx_t *ctx) { jsval_t l, r; BOOL b; HRESULT hres; r = stack_pop(ctx); l = stack_pop(ctx); TRACE("%s == %s\n", debugstr_jsval(l), debugstr_jsval(r)); hres = equal_values(ctx, l, r, &b); jsval_release(l); jsval_release(r); if(FAILED(hres)) return hres; return stack_push(ctx, jsval_bool(b)); } /* ECMA-262 3rd Edition 11.9.2 */ static HRESULT interp_neq(script_ctx_t *ctx) { jsval_t l, r; BOOL b; HRESULT hres; r = stack_pop(ctx); l = stack_pop(ctx); TRACE("%s != %s\n", debugstr_jsval(l), debugstr_jsval(r)); hres = equal_values(ctx, l, r, &b); jsval_release(l); jsval_release(r); if(FAILED(hres)) return hres; return stack_push(ctx, jsval_bool(!b)); } /* ECMA-262 3rd Edition 11.9.4 */ static HRESULT interp_eq2(script_ctx_t *ctx) { jsval_t l, r; BOOL b; HRESULT hres; r = stack_pop(ctx); l = stack_pop(ctx); TRACE("%s === %s\n", debugstr_jsval(l), debugstr_jsval(r)); hres = equal2_values(r, l, &b); jsval_release(l); jsval_release(r); if(FAILED(hres)) return hres; return stack_push(ctx, jsval_bool(b)); } /* ECMA-262 3rd Edition 11.9.5 */ static HRESULT interp_neq2(script_ctx_t *ctx) { jsval_t l, r; BOOL b; HRESULT hres; TRACE("\n"); r = stack_pop(ctx); l = stack_pop(ctx); hres = equal2_values(r, l, &b); jsval_release(l); jsval_release(r); if(FAILED(hres)) return hres; return stack_push(ctx, jsval_bool(!b)); } /* ECMA-262 3rd Edition 11.8.5 */ static HRESULT less_eval(script_ctx_t *ctx, jsval_t lval, jsval_t rval, BOOL greater, BOOL *ret) { double ln, rn; jsval_t l, r; HRESULT hres; hres = to_primitive(ctx, lval, &l, NO_HINT); if(FAILED(hres)) return hres; hres = to_primitive(ctx, rval, &r, NO_HINT); if(FAILED(hres)) { jsval_release(l); return hres; } if(is_string(l) && is_string(r)) { *ret = (jsstr_cmp(get_string(l), get_string(r)) < 0) ^ greater; jsstr_release(get_string(l)); jsstr_release(get_string(r)); return S_OK; } hres = to_number(ctx, l, &ln); jsval_release(l); if(SUCCEEDED(hres)) hres = to_number(ctx, r, &rn); jsval_release(r); if(FAILED(hres)) return hres; *ret = !isnan(ln) && !isnan(rn) && ((ln < rn) ^ greater); return S_OK; } /* ECMA-262 3rd Edition 11.8.1 */ static HRESULT interp_lt(script_ctx_t *ctx) { jsval_t l, r; BOOL b; HRESULT hres; r = stack_pop(ctx); l = stack_pop(ctx); TRACE("%s < %s\n", debugstr_jsval(l), debugstr_jsval(r)); hres = less_eval(ctx, l, r, FALSE, &b); jsval_release(l); jsval_release(r); if(FAILED(hres)) return hres; return stack_push(ctx, jsval_bool(b)); } /* ECMA-262 3rd Edition 11.8.1 */ static HRESULT interp_lteq(script_ctx_t *ctx) { jsval_t l, r; BOOL b; HRESULT hres; r = stack_pop(ctx); l = stack_pop(ctx); TRACE("%s <= %s\n", debugstr_jsval(l), debugstr_jsval(r)); hres = less_eval(ctx, r, l, TRUE, &b); jsval_release(l); jsval_release(r); if(FAILED(hres)) return hres; return stack_push(ctx, jsval_bool(b)); } /* ECMA-262 3rd Edition 11.8.2 */ static HRESULT interp_gt(script_ctx_t *ctx) { jsval_t l, r; BOOL b; HRESULT hres; r = stack_pop(ctx); l = stack_pop(ctx); TRACE("%s > %s\n", debugstr_jsval(l), debugstr_jsval(r)); hres = less_eval(ctx, r, l, FALSE, &b); jsval_release(l); jsval_release(r); if(FAILED(hres)) return hres; return stack_push(ctx, jsval_bool(b)); } /* ECMA-262 3rd Edition 11.8.4 */ static HRESULT interp_gteq(script_ctx_t *ctx) { jsval_t l, r; BOOL b; HRESULT hres; r = stack_pop(ctx); l = stack_pop(ctx); TRACE("%s >= %s\n", debugstr_jsval(l), debugstr_jsval(r)); hres = less_eval(ctx, l, r, TRUE, &b); jsval_release(l); jsval_release(r); if(FAILED(hres)) return hres; return stack_push(ctx, jsval_bool(b)); } /* ECMA-262 3rd Edition 11.4.8 */ static HRESULT interp_bneg(script_ctx_t *ctx) { jsval_t v; INT i; HRESULT hres; TRACE("\n"); v = stack_pop(ctx); hres = to_int32(ctx, v, &i); jsval_release(v); if(FAILED(hres)) return hres; return stack_push(ctx, jsval_number(~i)); } /* ECMA-262 3rd Edition 11.4.9 */ static HRESULT interp_neg(script_ctx_t *ctx) { jsval_t v; BOOL b; HRESULT hres; TRACE("\n"); v = stack_pop(ctx); hres = to_boolean(v, &b); jsval_release(v); if(FAILED(hres)) return hres; return stack_push(ctx, jsval_bool(!b)); } /* ECMA-262 3rd Edition 11.7.1 */ static HRESULT interp_lshift(script_ctx_t *ctx) { DWORD r; INT l; HRESULT hres; hres = stack_pop_uint(ctx, &r); if(FAILED(hres)) return hres; hres = stack_pop_int(ctx, &l); if(FAILED(hres)) return hres; return stack_push(ctx, jsval_number(l << (r&0x1f))); } /* ECMA-262 3rd Edition 11.7.2 */ static HRESULT interp_rshift(script_ctx_t *ctx) { DWORD r; INT l; HRESULT hres; hres = stack_pop_uint(ctx, &r); if(FAILED(hres)) return hres; hres = stack_pop_int(ctx, &l); if(FAILED(hres)) return hres; return stack_push(ctx, jsval_number(l >> (r&0x1f))); } /* ECMA-262 3rd Edition 11.7.3 */ static HRESULT interp_rshift2(script_ctx_t *ctx) { DWORD r, l; HRESULT hres; hres = stack_pop_uint(ctx, &r); if(FAILED(hres)) return hres; hres = stack_pop_uint(ctx, &l); if(FAILED(hres)) return hres; return stack_push(ctx, jsval_number(l >> (r&0x1f))); } /* ECMA-262 3rd Edition 11.13.1 */ static HRESULT interp_assign(script_ctx_t *ctx) { exprval_t ref; jsval_t v; HRESULT hres; TRACE("\n"); v = stack_pop(ctx); if(!stack_pop_exprval(ctx, &ref)) { jsval_release(v); return throw_reference_error(ctx, JS_E_ILLEGAL_ASSIGN, NULL); } hres = exprval_propput(ctx, &ref, v); exprval_release(&ref); if(FAILED(hres)) { jsval_release(v); return hres; } return stack_push(ctx, v); } /* JScript extension */ static HRESULT interp_assign_call(script_ctx_t *ctx) { const unsigned argc = get_op_uint(ctx, 0); exprval_t ref; jsval_t v; HRESULT hres; TRACE("%u\n", argc); if(!stack_topn_exprval(ctx, argc+1, &ref)) return throw_reference_error(ctx, JS_E_ILLEGAL_ASSIGN, NULL); hres = exprval_call(ctx, &ref, DISPATCH_PROPERTYPUT, argc+1, stack_args(ctx, argc+1), NULL); if(FAILED(hres)) return hres; v = stack_pop(ctx); stack_popn(ctx, argc+2); return stack_push(ctx, v); } static HRESULT interp_undefined(script_ctx_t *ctx) { TRACE("\n"); return stack_push(ctx, jsval_undefined()); } static HRESULT interp_jmp(script_ctx_t *ctx) { const unsigned arg = get_op_uint(ctx, 0); TRACE("%u\n", arg); jmp_abs(ctx, arg); return S_OK; } static HRESULT interp_jmp_z(script_ctx_t *ctx) { const unsigned arg = get_op_uint(ctx, 0); BOOL b; jsval_t v; HRESULT hres; TRACE("\n"); v = stack_pop(ctx); hres = to_boolean(v, &b); jsval_release(v); if(FAILED(hres)) return hres; if(b) jmp_next(ctx); else jmp_abs(ctx, arg); return S_OK; } static HRESULT interp_pop(script_ctx_t *ctx) { const unsigned arg = get_op_uint(ctx, 0); TRACE("%u\n", arg); stack_popn(ctx, arg); return S_OK; } static HRESULT interp_ret(script_ctx_t *ctx) { const unsigned clear_ret = get_op_uint(ctx, 0); call_frame_t *frame = ctx->call_ctx; TRACE("\n"); if(clear_ret) jsval_release(steal_ret(frame)); if((frame->flags & EXEC_CONSTRUCTOR) && !is_object_instance(frame->ret)) { jsval_release(frame->ret); IDispatch_AddRef(frame->this_obj); frame->ret = jsval_disp(frame->this_obj); } jmp_abs(ctx, -1); return S_OK; } static HRESULT interp_setret(script_ctx_t *ctx) { call_frame_t *frame = ctx->call_ctx; TRACE("\n"); jsval_release(frame->ret); frame->ret = stack_pop(ctx); return S_OK; } static HRESULT interp_push_ret(script_ctx_t *ctx) { call_frame_t *frame = ctx->call_ctx; HRESULT hres; TRACE("\n"); hres = stack_push(ctx, frame->ret); if(SUCCEEDED(hres)) frame->ret = jsval_undefined(); return hres; } typedef HRESULT (*op_func_t)(script_ctx_t*); static const op_func_t op_funcs[] = { #define X(x,a,b,c) interp_##x, OP_LIST #undef X }; static const unsigned op_move[] = { #define X(a,x,b,c) x, OP_LIST #undef X }; static void pop_call_frame(script_ctx_t *ctx) { call_frame_t *frame = ctx->call_ctx; frame->stack_base -= frame->pop_locals + frame->pop_variables; assert(frame->scope == frame->base_scope); /* If current scope will be kept alive, we need to transfer local variables to its variable object. */ if(frame->scope && frame->scope->ref > 1) { HRESULT hres = detach_variable_object(ctx, frame, TRUE); if(FAILED(hres)) ERR("Failed to detach variable object: %08x\n", hres); } if(frame->arguments_obj) detach_arguments_object(frame->arguments_obj); if(frame->scope) scope_release(frame->scope); if(frame->pop_variables) stack_popn(ctx, frame->pop_variables); stack_popn(ctx, frame->pop_locals); ctx->call_ctx = frame->prev_frame; if(frame->function_instance) jsdisp_release(frame->function_instance); if(frame->variable_obj) jsdisp_release(frame->variable_obj); if(frame->this_obj) IDispatch_Release(frame->this_obj); jsval_release(frame->ret); release_bytecode(frame->bytecode); heap_free(frame); } static HRESULT unwind_exception(script_ctx_t *ctx, HRESULT exception_hres) { except_frame_t *except_frame; call_frame_t *frame; jsval_t except_val; BSTR ident; HRESULT hres; for(frame = ctx->call_ctx; !frame->except_frame; frame = ctx->call_ctx) { DWORD flags; while(frame->scope != frame->base_scope) scope_pop(&frame->scope); stack_popn(ctx, ctx->stack_top-frame->stack_base); flags = frame->flags; pop_call_frame(ctx); if(!(flags & EXEC_RETURN_TO_INTERP)) return exception_hres; } except_frame = frame->except_frame; frame->except_frame = except_frame->next; assert(except_frame->stack_top <= ctx->stack_top); stack_popn(ctx, ctx->stack_top - except_frame->stack_top); while(except_frame->scope != frame->scope) scope_pop(&frame->scope); frame->ip = except_frame->catch_off; except_val = ctx->ei.val; ctx->ei.val = jsval_undefined(); clear_ei(ctx); ident = except_frame->ident; heap_free(except_frame); if(ident) { jsdisp_t *scope_obj; hres = create_dispex(ctx, NULL, NULL, &scope_obj); if(SUCCEEDED(hres)) { hres = jsdisp_propput_name(scope_obj, ident, except_val); if(FAILED(hres)) jsdisp_release(scope_obj); } jsval_release(except_val); if(FAILED(hres)) return hres; hres = scope_push(frame->scope, scope_obj, to_disp(scope_obj), &frame->scope); jsdisp_release(scope_obj); }else { hres = stack_push(ctx, except_val); if(FAILED(hres)) return hres; hres = stack_push(ctx, jsval_bool(FALSE)); } return hres; } static HRESULT enter_bytecode(script_ctx_t *ctx, jsval_t *r) { call_frame_t *frame; jsop_t op; HRESULT hres = S_OK; TRACE("\n"); while(1) { frame = ctx->call_ctx; op = frame->bytecode->instrs[frame->ip].op; hres = op_funcs[op](ctx); if(FAILED(hres)) { TRACE("EXCEPTION %08x\n", hres); hres = unwind_exception(ctx, hres); if(FAILED(hres)) return hres; }else if(frame->ip == -1) { const DWORD return_to_interp = frame->flags & EXEC_RETURN_TO_INTERP; assert(ctx->stack_top == frame->stack_base); assert(frame->scope == frame->base_scope); if(return_to_interp) { clear_ret(frame->prev_frame); frame->prev_frame->ret = steal_ret(frame); }else if(r) { *r = steal_ret(frame); } pop_call_frame(ctx); if(!return_to_interp) break; }else { frame->ip += op_move[op]; } } return S_OK; } static HRESULT bind_event_target(script_ctx_t *ctx, function_code_t *func, jsdisp_t *func_obj) { IBindEventHandler *target; exprval_t exprval; IDispatch *disp; jsval_t v; HRESULT hres; hres = identifier_eval(ctx, func->event_target, &exprval); if(FAILED(hres)) return hres; hres = exprval_to_value(ctx, &exprval, &v); if(FAILED(hres)) return hres; if(!is_object_instance(v)) { FIXME("Can't bind to %s\n", debugstr_jsval(v)); jsval_release(v); } disp = get_object(v); hres = IDispatch_QueryInterface(disp, &IID_IBindEventHandler, (void**)&target); if(SUCCEEDED(hres)) { hres = IBindEventHandler_BindHandler(target, func->name, (IDispatch*)&func_obj->IDispatchEx_iface); IBindEventHandler_Release(target); if(FAILED(hres)) WARN("BindEvent failed: %08x\n", hres); }else { FIXME("No IBindEventHandler, not yet supported binding\n"); } IDispatch_Release(disp); return hres; } static HRESULT setup_scope(script_ctx_t *ctx, call_frame_t *frame, scope_chain_t *scope_chain, jsdisp_t *variable_object, unsigned argc, jsval_t *argv) { const unsigned orig_stack = ctx->stack_top; scope_chain_t *scope; unsigned i; jsval_t v; HRESULT hres; /* If arguments are already on the stack, we may use them. */ if(argv + argc == ctx->stack + ctx->stack_top) { frame->arguments_off = argv - ctx->stack; i = argc; }else { frame->arguments_off = ctx->stack_top; for(i = 0; i < argc; i++) { hres = jsval_copy(argv[i], &v); if(SUCCEEDED(hres)) hres = stack_push(ctx, v); if(FAILED(hres)) { stack_popn(ctx, i); return hres; } } } /* If fewer than declared arguments were passed, fill remaining with undefined value. */ for(; i < frame->function->param_cnt; i++) { hres = stack_push(ctx, jsval_undefined()); if(FAILED(hres)) { stack_popn(ctx, ctx->stack_top - orig_stack); return hres; } } frame->pop_locals = ctx->stack_top - orig_stack; frame->variables_off = ctx->stack_top; for(i = 0; i < frame->function->var_cnt; i++) { hres = stack_push(ctx, jsval_undefined()); if(FAILED(hres)) { stack_popn(ctx, ctx->stack_top - orig_stack); return hres; } } frame->pop_variables = i; hres = scope_push(scope_chain, variable_object, to_disp(variable_object), &scope); if(FAILED(hres)) { stack_popn(ctx, ctx->stack_top - orig_stack); return hres; } for(i = 0; i < frame->function->func_cnt; i++) { if(frame->function->funcs[i].name && !frame->function->funcs[i].event_target) { jsdisp_t *func_obj; unsigned off; hres = create_source_function(ctx, frame->bytecode, frame->function->funcs+i, scope, &func_obj); if(FAILED(hres)) { stack_popn(ctx, ctx->stack_top - orig_stack); scope_release(scope); return hres; } off = local_off(frame, frame->function->funcs[i].local_ref); jsval_release(ctx->stack[off]); ctx->stack[off] = jsval_obj(func_obj); } } scope->frame = frame; frame->base_scope = frame->scope = scope; return S_OK; } HRESULT exec_source(script_ctx_t *ctx, DWORD flags, bytecode_t *bytecode, function_code_t *function, scope_chain_t *scope, IDispatch *this_obj, jsdisp_t *function_instance, jsdisp_t *variable_obj, unsigned argc, jsval_t *argv, jsval_t *r) { call_frame_t *frame; unsigned i; HRESULT hres; for(i = 0; i < function->func_cnt; i++) { jsdisp_t *func_obj; if(!function->funcs[i].event_target) continue; hres = create_source_function(ctx, bytecode, function->funcs+i, scope, &func_obj); if(FAILED(hres)) return hres; hres = bind_event_target(ctx, function->funcs+i, func_obj); jsdisp_release(func_obj); if(FAILED(hres)) return hres; } if(flags & (EXEC_GLOBAL | EXEC_EVAL)) { for(i=0; i < function->var_cnt; i++) { TRACE("[%d] %s %d\n", i, debugstr_w(function->variables[i].name), function->variables[i].func_id); if(function->variables[i].func_id != -1) { jsdisp_t *func_obj; hres = create_source_function(ctx, bytecode, function->funcs+function->variables[i].func_id, scope, &func_obj); if(FAILED(hres)) return hres; hres = jsdisp_propput_name(variable_obj, function->variables[i].name, jsval_obj(func_obj)); jsdisp_release(func_obj); }else if(!(flags & EXEC_GLOBAL) || !lookup_global_members(ctx, function->variables[i].name, NULL)) { DISPID id = 0; hres = jsdisp_get_id(variable_obj, function->variables[i].name, fdexNameEnsure, &id); if(FAILED(hres)) return hres; } } } /* ECMA-262 3rd Edition 11.2.3.7 */ if(this_obj) { jsdisp_t *jsthis; jsthis = iface_to_jsdisp(this_obj); if(jsthis) { if(jsthis->builtin_info->class == JSCLASS_GLOBAL || jsthis->builtin_info->class == JSCLASS_NONE) this_obj = NULL; jsdisp_release(jsthis); } } if(ctx->call_ctx && (flags & EXEC_EVAL)) { hres = detach_variable_object(ctx, ctx->call_ctx, FALSE); if(FAILED(hres)) return hres; } frame = heap_alloc_zero(sizeof(*frame)); if(!frame) return E_OUTOFMEMORY; frame->function = function; frame->ret = jsval_undefined(); frame->argc = argc; frame->bytecode = bytecode_addref(bytecode); if(!(flags & (EXEC_GLOBAL|EXEC_EVAL))) { hres = setup_scope(ctx, frame, scope, variable_obj, argc, argv); if(FAILED(hres)) { release_bytecode(frame->bytecode); heap_free(frame); return hres; } }else if(scope) { frame->base_scope = frame->scope = scope_addref(scope); } frame->ip = function->instr_off; frame->stack_base = ctx->stack_top; if(this_obj) frame->this_obj = this_obj; else if(ctx->host_global) frame->this_obj = ctx->host_global; else frame->this_obj = to_disp(ctx->global); IDispatch_AddRef(frame->this_obj); if(function_instance) frame->function_instance = jsdisp_addref(function_instance); frame->flags = flags; frame->variable_obj = jsdisp_addref(variable_obj); frame->prev_frame = ctx->call_ctx; ctx->call_ctx = frame; if(flags & EXEC_RETURN_TO_INTERP) { /* * We're called directly from interpreter, so we may just setup call frame and return. * Already running interpreter will take care of execution. */ if(r) *r = jsval_undefined(); return S_OK; } return enter_bytecode(ctx, r); }