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wine/dlls/jscript/engine.c

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/*
* 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 <math.h>
#include <assert.h>
#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;
};
static HRESULT stack_push(exec_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->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->top++] = v;
return S_OK;
}
static inline HRESULT stack_push_string(exec_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 HRESULT stack_push_objid(exec_ctx_t *ctx, IDispatch *disp, DISPID id)
{
HRESULT hres;
hres = stack_push(ctx, jsval_disp(disp));
if(FAILED(hres))
return hres;
return stack_push(ctx, jsval_number(id));
}
static inline jsval_t stack_top(exec_ctx_t *ctx)
{
assert(ctx->top);
return ctx->stack[ctx->top-1];
}
static inline jsval_t stack_topn(exec_ctx_t *ctx, unsigned n)
{
assert(ctx->top > n);
return ctx->stack[ctx->top-1-n];
}
static inline jsval_t *stack_args(exec_ctx_t *ctx, unsigned n)
{
if(!n)
return NULL;
assert(ctx->top > n-1);
return ctx->stack + ctx->top-n;
}
static inline jsval_t stack_pop(exec_ctx_t *ctx)
{
assert(ctx->top);
return ctx->stack[--ctx->top];
}
static void stack_popn(exec_ctx_t *ctx, unsigned n)
{
while(n--)
jsval_release(stack_pop(ctx));
}
static HRESULT stack_pop_number(exec_ctx_t *ctx, double *r)
{
jsval_t v;
HRESULT hres;
v = stack_pop(ctx);
hres = to_number(ctx->script, v, r);
jsval_release(v);
return hres;
}
static HRESULT stack_pop_object(exec_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->script, JS_E_OBJECT_REQUIRED, NULL);
*r = get_object(v);
return S_OK;
}
hres = to_object(ctx->script, v, r);
jsval_release(v);
return hres;
}
static inline HRESULT stack_pop_int(exec_ctx_t *ctx, INT *r)
{
return to_int32(ctx->script, stack_pop(ctx), r);
}
static inline HRESULT stack_pop_uint(exec_ctx_t *ctx, DWORD *r)
{
return to_uint32(ctx->script, stack_pop(ctx), r);
}
static inline IDispatch *stack_pop_objid(exec_ctx_t *ctx, DISPID *id)
{
assert(is_number(stack_top(ctx)) && is_object_instance(stack_topn(ctx, 1)));
*id = get_number(stack_pop(ctx));
return get_object(stack_pop(ctx));
}
static inline IDispatch *stack_topn_objid(exec_ctx_t *ctx, unsigned n, DISPID *id)
{
assert(is_number(stack_topn(ctx, n)) && is_object_instance(stack_topn(ctx, n+1)));
*id = get_number(stack_topn(ctx, n));
return get_object(stack_topn(ctx, n+1));
}
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_INVALID:
return;
}
}
/* ECMA-262 3rd Edition 8.7.1 */
static HRESULT exprval_to_value(script_ctx_t *ctx, exprval_t *val, jsval_t *ret)
{
switch(val->type) {
case EXPRVAL_JSVAL:
*ret = val->u.val;
val->u.val = jsval_undefined();
return S_OK;
case EXPRVAL_IDREF:
if(!val->u.idref.disp) {
FIXME("throw ReferenceError\n");
return E_FAIL;
}
return disp_propget(ctx, val->u.idref.disp, val->u.idref.id, ret);
case EXPRVAL_INVALID:
assert(0);
}
ERR("type %d\n", val->type);
return E_FAIL;
}
static void exprval_set_idref(exprval_t *val, IDispatch *disp, DISPID id)
{
val->type = EXPRVAL_IDREF;
val->u.idref.disp = disp;
val->u.idref.id = id;
if(disp)
IDispatch_AddRef(disp);
}
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;
if(scope) {
scope_addref(scope);
new_scope->next = scope;
}else {
new_scope->next = 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);
}
HRESULT create_exec_ctx(script_ctx_t *script_ctx, IDispatch *this_obj, jsdisp_t *var_disp,
scope_chain_t *scope, BOOL is_global, exec_ctx_t **ret)
{
exec_ctx_t *ctx;
ctx = heap_alloc_zero(sizeof(exec_ctx_t));
if(!ctx)
return E_OUTOFMEMORY;
ctx->ref = 1;
ctx->is_global = is_global;
ctx->ret = jsval_undefined();
/* ECMA-262 3rd Edition 11.2.3.7 */
if(this_obj) {
jsdisp_t *jsthis;
jsthis = iface_to_jsdisp((IUnknown*)this_obj);
if(jsthis) {
if(jsthis->builtin_info->class == JSCLASS_GLOBAL || jsthis->builtin_info->class == JSCLASS_NONE)
this_obj = NULL;
jsdisp_release(jsthis);
}
}
if(this_obj)
ctx->this_obj = this_obj;
else if(script_ctx->host_global)
ctx->this_obj = script_ctx->host_global;
else
ctx->this_obj = to_disp(script_ctx->global);
IDispatch_AddRef(ctx->this_obj);
jsdisp_addref(var_disp);
ctx->var_disp = var_disp;
script_addref(script_ctx);
ctx->script = script_ctx;
if(scope) {
scope_addref(scope);
ctx->scope_chain = scope;
}
*ret = ctx;
return S_OK;
}
void exec_release(exec_ctx_t *ctx)
{
if(--ctx->ref)
return;
if(ctx->scope_chain)
scope_release(ctx->scope_chain);
if(ctx->var_disp)
jsdisp_release(ctx->var_disp);
if(ctx->this_obj)
IDispatch_Release(ctx->this_obj);
if(ctx->script)
script_release(ctx->script);
jsval_release(ctx->ret);
heap_free(ctx->stack);
heap_free(ctx);
}
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((IUnknown*)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 inline BOOL var_is_null(const VARIANT *v)
{
return V_VT(v) == VT_NULL || (V_VT(v) == VT_DISPATCH && !V_DISPATCH(v));
}
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;
}
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_idref(ret, item->disp, id);
return TRUE;
}
}
}
return FALSE;
}
/* 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));
for(scope = ctx->exec_ctx->scope_chain; scope; scope = scope->next) {
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_idref(ret, scope->obj, id);
return S_OK;
}
}
hres = jsdisp_get_id(ctx->global, identifier, 0, &id);
if(SUCCEEDED(hres)) {
exprval_set_idref(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;
ret->type = EXPRVAL_INVALID;
return S_OK;
}
static inline BSTR get_op_bstr(exec_ctx_t *ctx, int i){
return ctx->code->instrs[ctx->ip].u.arg[i].bstr;
}
static inline unsigned get_op_uint(exec_ctx_t *ctx, int i){
return ctx->code->instrs[ctx->ip].u.arg[i].uint;
}
static inline unsigned get_op_int(exec_ctx_t *ctx, int i){
return ctx->code->instrs[ctx->ip].u.arg[i].lng;
}
static inline jsstr_t *get_op_str(exec_ctx_t *ctx, int i){
return ctx->code->instrs[ctx->ip].u.arg[i].str;
}
static inline double get_op_double(exec_ctx_t *ctx){
return ctx->code->instrs[ctx->ip].u.dbl;
}
/* ECMA-262 3rd Edition 12.2 */
static HRESULT interp_var_set(exec_ctx_t *ctx)
{
const BSTR name = get_op_bstr(ctx, 0);
jsval_t val;
HRESULT hres;
TRACE("%s\n", debugstr_w(name));
val = stack_pop(ctx);
hres = jsdisp_propput_name(ctx->var_disp, name, val);
jsval_release(val);
return hres;
}
/* ECMA-262 3rd Edition 12.6.4 */
static HRESULT interp_forin(exec_ctx_t *ctx)
{
const HRESULT arg = get_op_uint(ctx, 0);
IDispatch *var_obj, *obj = NULL;
IDispatchEx *dispex;
DISPID id, var_id;
BSTR name = NULL;
HRESULT hres;
TRACE("\n");
assert(is_number(stack_top(ctx)));
id = get_number(stack_top(ctx));
var_obj = stack_topn_objid(ctx, 1, &var_id);
if(!var_obj) {
FIXME("invalid ref\n");
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 = disp_propput(ctx->script, var_obj, var_id, jsval_string(str));
jsstr_release(str);
if(FAILED(hres))
return hres;
ctx->ip++;
}else {
stack_popn(ctx, 4);
ctx->ip = arg;
}
return S_OK;
}
/* ECMA-262 3rd Edition 12.10 */
static HRESULT interp_push_scope(exec_ctx_t *ctx)
{
IDispatch *disp;
jsval_t v;
HRESULT hres;
TRACE("\n");
v = stack_pop(ctx);
hres = to_object(ctx->script, v, &disp);
jsval_release(v);
if(FAILED(hres))
return hres;
hres = scope_push(ctx->scope_chain, to_jsdisp(disp), disp, &ctx->scope_chain);
IDispatch_Release(disp);
return hres;
}
/* ECMA-262 3rd Edition 12.10 */
static HRESULT interp_pop_scope(exec_ctx_t *ctx)
{
TRACE("\n");
scope_pop(&ctx->scope_chain);
return S_OK;
}
/* ECMA-262 3rd Edition 12.13 */
static HRESULT interp_case(exec_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);
ctx->ip = arg;
}else {
ctx->ip++;
}
return S_OK;
}
/* ECMA-262 3rd Edition 12.13 */
static HRESULT interp_throw(exec_ctx_t *ctx)
{
TRACE("\n");
jsval_release(ctx->script->ei.val);
ctx->script->ei.val = stack_pop(ctx);
return DISP_E_EXCEPTION;
}
static HRESULT interp_throw_ref(exec_ctx_t *ctx)
{
const HRESULT arg = get_op_uint(ctx, 0);
TRACE("%08x\n", arg);
return throw_reference_error(ctx->script, arg, NULL);
}
static HRESULT interp_throw_type(exec_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->script, hres, ptr) : E_OUTOFMEMORY;
}
/* ECMA-262 3rd Edition 12.14 */
static HRESULT interp_push_except(exec_ctx_t *ctx)
{
const unsigned arg1 = get_op_uint(ctx, 0);
const BSTR arg2 = get_op_bstr(ctx, 1);
except_frame_t *except;
unsigned stack_top;
TRACE("\n");
stack_top = ctx->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 = ctx->scope_chain;
except->catch_off = arg1;
except->ident = arg2;
except->next = ctx->except_frame;
ctx->except_frame = except;
return S_OK;
}
/* ECMA-262 3rd Edition 12.14 */
static HRESULT interp_pop_except(exec_ctx_t *ctx)
{
except_frame_t *except;
TRACE("\n");
except = ctx->except_frame;
assert(except != NULL);
ctx->except_frame = except->next;
heap_free(except);
return S_OK;
}
/* ECMA-262 3rd Edition 12.14 */
static HRESULT interp_end_finally(exec_ctx_t *ctx)
{
jsval_t v;
TRACE("\n");
assert(is_bool(stack_top(ctx)));
if(!get_bool(stack_top(ctx))) {
TRACE("passing exception\n");
jsval_release(v);
stack_popn(ctx, 1);
ctx->script->ei.val = stack_pop(ctx);
return DISP_E_EXCEPTION;
}
stack_popn(ctx, 2);
return S_OK;
}
/* ECMA-262 3rd Edition 13 */
static HRESULT interp_func(exec_ctx_t *ctx)
{
unsigned func_idx = get_op_uint(ctx, 0);
jsdisp_t *dispex;
HRESULT hres;
TRACE("%d\n", func_idx);
hres = create_source_function(ctx->script, ctx->code, ctx->func_code->funcs+func_idx,
ctx->scope_chain, &dispex);
if(FAILED(hres))
return hres;
return stack_push(ctx, jsval_obj(dispex));
}
/* ECMA-262 3rd Edition 11.2.1 */
static HRESULT interp_array(exec_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->script, namev, &name_str, &name);
jsval_release(namev);
if(FAILED(hres)) {
IDispatch_Release(obj);
return hres;
}
hres = disp_get_id(ctx->script, obj, name, NULL, 0, &id);
jsstr_release(name_str);
if(SUCCEEDED(hres)) {
hres = disp_propget(ctx->script, 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(exec_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->script, obj, arg, arg, 0, &id);
if(SUCCEEDED(hres)) {
hres = disp_propget(ctx->script, 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(exec_ctx_t *ctx)
{
const unsigned arg = get_op_uint(ctx, 0);
jsval_t objv, namev;
const WCHAR *name;
jsstr_t *name_str;
IDispatch *obj;
DISPID id;
HRESULT hres;
TRACE("%x\n", arg);
namev = stack_pop(ctx);
objv = stack_pop(ctx);
hres = to_object(ctx->script, objv, &obj);
jsval_release(objv);
if(SUCCEEDED(hres)) {
hres = to_flat_string(ctx->script, namev, &name_str, &name);
if(FAILED(hres))
IDispatch_Release(obj);
}
jsval_release(namev);
if(FAILED(hres))
return hres;
hres = disp_get_id(ctx->script, obj, name, NULL, arg, &id);
jsstr_release(name_str);
if(FAILED(hres)) {
IDispatch_Release(obj);
if(hres == DISP_E_UNKNOWNNAME && !(arg & fdexNameEnsure)) {
obj = NULL;
id = JS_E_INVALID_PROPERTY;
}else {
ERR("failed %08x\n", hres);
return hres;
}
}
return stack_push_objid(ctx, obj, id);
}
/* ECMA-262 3rd Edition 11.2.1 */
static HRESULT interp_refval(exec_ctx_t *ctx)
{
IDispatch *disp;
jsval_t v;
DISPID id;
HRESULT hres;
TRACE("\n");
disp = stack_topn_objid(ctx, 0, &id);
if(!disp)
return throw_reference_error(ctx->script, JS_E_ILLEGAL_ASSIGN, NULL);
hres = disp_propget(ctx->script, disp, id, &v);
if(FAILED(hres))
return hres;
return stack_push(ctx, v);
}
/* ECMA-262 3rd Edition 11.2.2 */
static HRESULT interp_new(exec_ctx_t *ctx)
{
const unsigned argc = get_op_uint(ctx, 0);
jsval_t r, constr;
HRESULT hres;
TRACE("%d\n", argc);
constr = stack_topn(ctx, argc);
/* NOTE: Should use to_object here */
if(is_null(constr))
return throw_type_error(ctx->script, JS_E_OBJECT_EXPECTED, NULL);
else if(!is_object_instance(constr))
return throw_type_error(ctx->script, JS_E_INVALID_ACTION, NULL);
else if(!get_object(constr))
return throw_type_error(ctx->script, JS_E_INVALID_PROPERTY, NULL);
hres = disp_call_value(ctx->script, get_object(constr), NULL, DISPATCH_CONSTRUCT, argc, stack_args(ctx, argc), &r);
if(FAILED(hres))
return hres;
stack_popn(ctx, argc+1);
return stack_push(ctx, r);
}
/* ECMA-262 3rd Edition 11.2.3 */
static HRESULT interp_call(exec_ctx_t *ctx)
{
const unsigned argn = get_op_uint(ctx, 0);
const int do_ret = get_op_int(ctx, 1);
jsval_t r, obj;
HRESULT hres;
TRACE("%d %d\n", argn, do_ret);
obj = stack_topn(ctx, argn);
if(!is_object_instance(obj))
return throw_type_error(ctx->script, JS_E_INVALID_PROPERTY, NULL);
hres = disp_call_value(ctx->script, get_object(obj), NULL, DISPATCH_METHOD, argn, stack_args(ctx, argn),
do_ret ? &r : NULL);
if(FAILED(hres))
return hres;
stack_popn(ctx, argn+1);
return do_ret ? stack_push(ctx, r) : S_OK;
}
/* ECMA-262 3rd Edition 11.2.3 */
static HRESULT interp_call_member(exec_ctx_t *ctx)
{
const unsigned argn = get_op_uint(ctx, 0);
const int do_ret = get_op_int(ctx, 1);
IDispatch *obj;
jsval_t r;
DISPID id;
HRESULT hres;
TRACE("%d %d\n", argn, do_ret);
obj = stack_topn_objid(ctx, argn, &id);
if(!obj)
return throw_type_error(ctx->script, id, NULL);
hres = disp_call(ctx->script, obj, id, DISPATCH_METHOD, argn, stack_args(ctx, argn), do_ret ? &r : NULL);
if(FAILED(hres))
return hres;
stack_popn(ctx, argn+2);
return do_ret ? stack_push(ctx, r) : S_OK;
}
/* ECMA-262 3rd Edition 11.1.1 */
static HRESULT interp_this(exec_ctx_t *ctx)
{
TRACE("\n");
IDispatch_AddRef(ctx->this_obj);
return stack_push(ctx, jsval_disp(ctx->this_obj));
}
/* ECMA-262 3rd Edition 10.1.4 */
static HRESULT interp_ident(exec_ctx_t *ctx)
{
const BSTR arg = get_op_bstr(ctx, 0);
exprval_t exprval;
jsval_t v;
HRESULT hres;
TRACE("%s\n", debugstr_w(arg));
hres = identifier_eval(ctx->script, arg, &exprval);
if(FAILED(hres))
return hres;
if(exprval.type == EXPRVAL_INVALID)
return throw_type_error(ctx->script, JS_E_UNDEFINED_VARIABLE, arg);
hres = exprval_to_value(ctx->script, &exprval, &v);
exprval_release(&exprval);
if(FAILED(hres))
return hres;
return stack_push(ctx, v);
}
/* ECMA-262 3rd Edition 10.1.4 */
static HRESULT interp_identid(exec_ctx_t *ctx)
{
const BSTR arg = get_op_bstr(ctx, 0);
const unsigned flags = get_op_uint(ctx, 1);
exprval_t exprval;
HRESULT hres;
TRACE("%s %x\n", debugstr_w(arg), flags);
hres = identifier_eval(ctx->script, arg, &exprval);
if(FAILED(hres))
return hres;
if(exprval.type == EXPRVAL_INVALID && (flags & fdexNameEnsure)) {
DISPID id;
hres = jsdisp_get_id(ctx->script->global, arg, fdexNameEnsure, &id);
if(FAILED(hres))
return hres;
exprval_set_idref(&exprval, to_disp(ctx->script->global), id);
}
if(exprval.type != EXPRVAL_IDREF) {
WARN("invalid ref\n");
exprval_release(&exprval);
return stack_push_objid(ctx, NULL, JS_E_OBJECT_EXPECTED);
}
return stack_push_objid(ctx, exprval.u.idref.disp, exprval.u.idref.id);
}
/* ECMA-262 3rd Edition 7.8.1 */
static HRESULT interp_null(exec_ctx_t *ctx)
{
TRACE("\n");
return stack_push(ctx, jsval_null());
}
/* ECMA-262 3rd Edition 7.8.2 */
static HRESULT interp_bool(exec_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(exec_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(exec_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(exec_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(exec_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->script, source, flags, &regexp);
if(FAILED(hres))
return hres;
return stack_push(ctx, jsval_obj(regexp));
}
/* ECMA-262 3rd Edition 11.1.4 */
static HRESULT interp_carray(exec_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->script, 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(exec_ctx_t *ctx)
{
jsdisp_t *obj;
HRESULT hres;
TRACE("\n");
hres = create_object(ctx->script, 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(exec_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(exec_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) {
ctx->ip = arg;
}else {
stack_popn(ctx, 1);
ctx->ip++;
}
return S_OK;
}
/* ECMA-262 3rd Edition 11.11 */
static HRESULT interp_cnd_z(exec_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);
ctx->ip++;
}else {
ctx->ip = arg;
}
return S_OK;
}
/* ECMA-262 3rd Edition 11.10 */
static HRESULT interp_or(exec_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(exec_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(exec_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(exec_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->script, JS_E_FUNCTION_EXPECTED, NULL);
}
obj = iface_to_jsdisp((IUnknown*)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->script, 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((IUnknown*)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(exec_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->script, JS_E_OBJECT_EXPECTED, NULL);
}
v = stack_pop(ctx);
hres = to_flat_string(ctx->script, v, &jsstr, &str);
jsval_release(v);
if(FAILED(hres)) {
IDispatch_Release(get_object(obj));
return hres;
}
hres = disp_get_id(ctx->script, 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(exec_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->script, 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(exec_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(exec_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(exec_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(exec_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(exec_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->script, objv, &obj);
jsval_release(objv);
if(FAILED(hres)) {
jsval_release(namev);
return hres;
}
hres = to_string(ctx->script, namev, &name);
jsval_release(namev);
if(FAILED(hres)) {
IDispatch_Release(obj);
return hres;
}
hres = disp_delete_name(ctx->script, 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(exec_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->script, arg, &exprval);
if(FAILED(hres))
return hres;
switch(exprval.type) {
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 ret;
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(exec_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((IUnknown*)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(exec_ctx_t *ctx)
{
const WCHAR *ret;
IDispatch *obj;
jsval_t v;
DISPID id;
HRESULT hres;
TRACE("\n");
obj = stack_pop_objid(ctx, &id);
if(!obj)
return stack_push(ctx, jsval_string(jsstr_undefined()));
hres = disp_propget(ctx->script, obj, id, &v);
IDispatch_Release(obj);
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(exec_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->script, arg, &exprval);
if(FAILED(hres))
return hres;
if(exprval.type == EXPRVAL_INVALID) {
hres = stack_push(ctx, jsval_string(jsstr_undefined()));
exprval_release(&exprval);
return hres;
}
hres = exprval_to_value(ctx->script, &exprval, &v);
exprval_release(&exprval);
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(exec_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(exec_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(exec_ctx_t *ctx)
{
jsval_t v;
double n;
HRESULT hres;
TRACE("\n");
v = stack_pop(ctx);
hres = to_number(ctx->script, 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(exec_ctx_t *ctx)
{
const int arg = get_op_int(ctx, 0);
IDispatch *obj;
DISPID id;
jsval_t v;
HRESULT hres;
TRACE("%d\n", arg);
obj = stack_pop_objid(ctx, &id);
if(!obj)
return throw_type_error(ctx->script, JS_E_OBJECT_EXPECTED, NULL);
hres = disp_propget(ctx->script, obj, id, &v);
if(SUCCEEDED(hres)) {
double n;
hres = to_number(ctx->script, v, &n);
if(SUCCEEDED(hres))
hres = disp_propput(ctx->script, obj, id, jsval_number(n+(double)arg));
if(FAILED(hres))
jsval_release(v);
}
IDispatch_Release(obj);
if(FAILED(hres))
return hres;
return stack_push(ctx, v);
}
/* ECMA-262 3rd Edition 11.4.4, 11.4.5 */
static HRESULT interp_preinc(exec_ctx_t *ctx)
{
const int arg = get_op_int(ctx, 0);
IDispatch *obj;
double ret;
DISPID id;
jsval_t v;
HRESULT hres;
TRACE("%d\n", arg);
obj = stack_pop_objid(ctx, &id);
if(!obj)
return throw_type_error(ctx->script, JS_E_OBJECT_EXPECTED, NULL);
hres = disp_propget(ctx->script, obj, id, &v);
if(SUCCEEDED(hres)) {
double n;
hres = to_number(ctx->script, v, &n);
jsval_release(v);
if(SUCCEEDED(hres)) {
ret = n+(double)arg;
hres = disp_propput(ctx->script, obj, id, jsval_number(ret));
}
}
IDispatch_Release(obj);
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(exec_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->script, 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(exec_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->script, 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(exec_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(exec_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(exec_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->script, 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(exec_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->script, 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(exec_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->script, 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(exec_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->script, 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(exec_ctx_t *ctx)
{
jsval_t v;
INT i;
HRESULT hres;
TRACE("\n");
v = stack_pop(ctx);
hres = to_int32(ctx->script, 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(exec_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(exec_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(exec_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(exec_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(exec_ctx_t *ctx)
{
IDispatch *disp;
DISPID id;
jsval_t v;
HRESULT hres;
TRACE("\n");
v = stack_pop(ctx);
disp = stack_pop_objid(ctx, &id);
if(!disp) {
jsval_release(v);
return throw_reference_error(ctx->script, JS_E_ILLEGAL_ASSIGN, NULL);
}
hres = disp_propput(ctx->script, disp, id, v);
IDispatch_Release(disp);
if(FAILED(hres)) {
jsval_release(v);
return hres;
}
return stack_push(ctx, v);
}
/* JScript extension */
static HRESULT interp_assign_call(exec_ctx_t *ctx)
{
const unsigned argc = get_op_uint(ctx, 0);
IDispatch *disp;
jsval_t v;
DISPID id;
HRESULT hres;
TRACE("%u\n", argc);
disp = stack_topn_objid(ctx, argc+1, &id);
if(!disp)
return throw_reference_error(ctx->script, JS_E_ILLEGAL_ASSIGN, NULL);
hres = disp_call(ctx->script, disp, id, 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(exec_ctx_t *ctx)
{
TRACE("\n");
return stack_push(ctx, jsval_undefined());
}
static HRESULT interp_jmp(exec_ctx_t *ctx)
{
const unsigned arg = get_op_uint(ctx, 0);
TRACE("%u\n", arg);
ctx->ip = arg;
return S_OK;
}
static HRESULT interp_jmp_z(exec_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)
ctx->ip++;
else
ctx->ip = arg;
return S_OK;
}
static HRESULT interp_pop(exec_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(exec_ctx_t *ctx)
{
TRACE("\n");
ctx->ip = -1;
return S_OK;
}
static HRESULT interp_setret(exec_ctx_t *ctx)
{
TRACE("\n");
jsval_release(ctx->ret);
ctx->ret = stack_pop(ctx);
return S_OK;
}
typedef HRESULT (*op_func_t)(exec_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 HRESULT unwind_exception(exec_ctx_t *ctx)
{
except_frame_t *except_frame;
jsval_t except_val;
BSTR ident;
HRESULT hres;
except_frame = ctx->except_frame;
ctx->except_frame = except_frame->next;
assert(except_frame->stack_top <= ctx->top);
stack_popn(ctx, ctx->top - except_frame->stack_top);
while(except_frame->scope != ctx->scope_chain)
scope_pop(&ctx->scope_chain);
ctx->ip = except_frame->catch_off;
except_val = ctx->script->ei.val;
ctx->script->ei.val = jsval_undefined();
clear_ei(ctx->script);
ident = except_frame->ident;
heap_free(except_frame);
if(ident) {
jsdisp_t *scope_obj;
hres = create_dispex(ctx->script, 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(ctx->scope_chain, scope_obj, to_disp(scope_obj), &ctx->scope_chain);
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, bytecode_t *code, function_code_t *func, jsval_t *ret)
{
exec_ctx_t *exec_ctx = ctx->exec_ctx;
except_frame_t *prev_except_frame;
function_code_t *prev_func;
unsigned prev_ip, prev_top;
scope_chain_t *prev_scope;
bytecode_t *prev_code;
jsop_t op;
HRESULT hres = S_OK;
TRACE("\n");
prev_top = exec_ctx->top;
prev_scope = exec_ctx->scope_chain;
prev_except_frame = exec_ctx->except_frame;
prev_ip = exec_ctx->ip;
prev_code = exec_ctx->code;
prev_func = exec_ctx->func_code;
exec_ctx->ip = func->instr_off;
exec_ctx->except_frame = NULL;
exec_ctx->code = code;
exec_ctx->func_code = func;
while(exec_ctx->ip != -1) {
op = code->instrs[exec_ctx->ip].op;
hres = op_funcs[op](exec_ctx);
if(FAILED(hres)) {
TRACE("EXCEPTION %08x\n", hres);
if(!exec_ctx->except_frame)
break;
hres = unwind_exception(exec_ctx);
if(FAILED(hres))
break;
}else {
exec_ctx->ip += op_move[op];
}
}
exec_ctx->ip = prev_ip;
exec_ctx->except_frame = prev_except_frame;
exec_ctx->code = prev_code;
exec_ctx->func_code = prev_func;
if(FAILED(hres)) {
while(exec_ctx->scope_chain != prev_scope)
scope_pop(&exec_ctx->scope_chain);
stack_popn(exec_ctx, exec_ctx->top-prev_top);
return hres;
}
assert(exec_ctx->top == prev_top+1 || exec_ctx->top == prev_top);
assert(exec_ctx->scope_chain == prev_scope);
assert(exec_ctx->top == prev_top);
*ret = exec_ctx->ret;
exec_ctx->ret = jsval_undefined();
return S_OK;
}
HRESULT exec_source(exec_ctx_t *ctx, bytecode_t *code, function_code_t *func, BOOL from_eval, jsval_t *ret)
{
exec_ctx_t *prev_ctx;
jsval_t val;
unsigned i;
HRESULT hres = S_OK;
for(i = 0; i < func->func_cnt; i++) {
jsdisp_t *func_obj;
if(!func->funcs[i].name)
continue;
hres = create_source_function(ctx->script, code, func->funcs+i, ctx->scope_chain, &func_obj);
if(FAILED(hres))
return hres;
hres = jsdisp_propput_name(ctx->var_disp, func->funcs[i].name, jsval_obj(func_obj));
jsdisp_release(func_obj);
if(FAILED(hres))
return hres;
}
for(i=0; i < func->var_cnt; i++) {
if(!ctx->is_global || !lookup_global_members(ctx->script, func->variables[i], NULL)) {
DISPID id = 0;
hres = jsdisp_get_id(ctx->var_disp, func->variables[i], fdexNameEnsure, &id);
if(FAILED(hres))
return hres;
}
}
prev_ctx = ctx->script->exec_ctx;
ctx->script->exec_ctx = ctx;
hres = enter_bytecode(ctx->script, code, func, &val);
assert(ctx->script->exec_ctx == ctx);
ctx->script->exec_ctx = prev_ctx;
if(FAILED(hres))
return hres;
if(ret)
*ret = val;
else
jsval_release(val);
return S_OK;
}
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