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wine-wine/dlls/jscript/object.c

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/*
* Copyright 2008 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 <assert.h>
#include "jscript.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(jscript);
static HRESULT Object_toString(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned argc, jsval_t *argv,
jsval_t *r)
{
jsdisp_t *jsdisp;
const WCHAR *str;
/* Keep in sync with jsclass_t enum */
static const WCHAR *names[] = {
NULL,
L"[object Array]",
L"[object Boolean]",
L"[object Date]",
L"[object Object]",
L"[object Error]",
L"[object Function]",
NULL,
L"[object Math]",
L"[object Number]",
L"[object Object]",
L"[object RegExp]",
L"[object String]",
L"[object Object]",
L"[object Object]",
L"[object Object]"
};
TRACE("\n");
jsdisp = get_jsdisp(jsthis);
if(!jsdisp) {
str = L"[object Object]";
}else if(names[jsdisp->builtin_info->class]) {
str = names[jsdisp->builtin_info->class];
}else {
assert(jsdisp->builtin_info->class != JSCLASS_NONE);
FIXME("jsdisp->builtin_info->class = %d\n", jsdisp->builtin_info->class);
return E_FAIL;
}
if(r) {
jsstr_t *ret;
ret = jsstr_alloc(str);
if(!ret)
return E_OUTOFMEMORY;
*r = jsval_string(ret);
}
return S_OK;
}
static HRESULT Object_toLocaleString(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned argc, jsval_t *argv,
jsval_t *r)
{
TRACE("\n");
if(!is_jsdisp(jsthis)) {
FIXME("Host object this\n");
return E_FAIL;
}
return jsdisp_call_name(jsthis->u.jsdisp, L"toString", DISPATCH_METHOD, 0, NULL, r);
}
static HRESULT Object_valueOf(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned argc, jsval_t *argv,
jsval_t *r)
{
TRACE("\n");
if(r) {
IDispatch_AddRef(jsthis->u.disp);
*r = jsval_disp(jsthis->u.disp);
}
return S_OK;
}
static HRESULT Object_hasOwnProperty(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned argc, jsval_t *argv,
jsval_t *r)
{
jsstr_t *name;
DISPID id;
BSTR bstr;
HRESULT hres;
TRACE("\n");
if(!argc) {
if(r)
*r = jsval_bool(FALSE);
return S_OK;
}
hres = to_string(ctx, argv[0], &name);
if(FAILED(hres))
return hres;
if(is_jsdisp(jsthis)) {
property_desc_t prop_desc;
const WCHAR *name_str;
name_str = jsstr_flatten(name);
if(!name_str) {
jsstr_release(name);
return E_OUTOFMEMORY;
}
hres = jsdisp_get_own_property(jsthis->u.jsdisp, name_str, TRUE, &prop_desc);
jsstr_release(name);
if(FAILED(hres) && hres != DISP_E_UNKNOWNNAME)
return hres;
if(r) *r = jsval_bool(hres == S_OK);
return S_OK;
}
bstr = SysAllocStringLen(NULL, jsstr_length(name));
if(bstr)
jsstr_flush(name, bstr);
jsstr_release(name);
if(!bstr)
return E_OUTOFMEMORY;
if(is_dispex(jsthis))
hres = IDispatchEx_GetDispID(jsthis->u.dispex, bstr, make_grfdex(ctx, fdexNameCaseSensitive), &id);
else
hres = IDispatch_GetIDsOfNames(jsthis->u.disp, &IID_NULL, &bstr, 1, ctx->lcid, &id);
SysFreeString(bstr);
if(r)
*r = jsval_bool(SUCCEEDED(hres));
return S_OK;
}
static HRESULT Object_propertyIsEnumerable(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned argc, jsval_t *argv,
jsval_t *r)
{
property_desc_t prop_desc;
const WCHAR *name;
jsstr_t *name_str;
HRESULT hres;
TRACE("\n");
if(argc != 1) {
FIXME("argc %d not supported\n", argc);
return E_NOTIMPL;
}
if(!is_jsdisp(jsthis)) {
FIXME("Host object this\n");
return E_FAIL;
}
hres = to_flat_string(ctx, argv[0], &name_str, &name);
if(FAILED(hres))
return hres;
hres = jsdisp_get_own_property(jsthis->u.jsdisp, name, TRUE, &prop_desc);
jsstr_release(name_str);
if(FAILED(hres) && hres != DISP_E_UNKNOWNNAME)
return hres;
if(r)
*r = jsval_bool(hres == S_OK && (prop_desc.flags & PROPF_ENUMERABLE) != 0);
return S_OK;
}
static HRESULT Object_isPrototypeOf(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned argc, jsval_t *argv,
jsval_t *r)
{
FIXME("\n");
return E_NOTIMPL;
}
static HRESULT Object_get_value(script_ctx_t *ctx, jsdisp_t *jsthis, jsval_t *r)
{
jsstr_t *ret;
TRACE("\n");
ret = jsstr_alloc(L"[object Object]");
if(!ret)
return E_OUTOFMEMORY;
*r = jsval_string(ret);
return S_OK;
}
static void Object_destructor(jsdisp_t *dispex)
{
heap_free(dispex);
}
static const builtin_prop_t Object_props[] = {
{L"hasOwnProperty", Object_hasOwnProperty, PROPF_METHOD|1},
{L"isPrototypeOf", Object_isPrototypeOf, PROPF_METHOD|1},
{L"propertyIsEnumerable", Object_propertyIsEnumerable, PROPF_METHOD|1},
{L"toLocaleString", Object_toLocaleString, PROPF_METHOD},
{L"toString", Object_toString, PROPF_METHOD},
{L"valueOf", Object_valueOf, PROPF_METHOD}
};
static const builtin_info_t Object_info = {
JSCLASS_OBJECT,
{NULL, NULL,0, Object_get_value},
ARRAY_SIZE(Object_props),
Object_props,
Object_destructor,
NULL
};
static const builtin_info_t ObjectInst_info = {
JSCLASS_OBJECT,
{NULL, NULL,0, Object_get_value},
0, NULL,
Object_destructor,
NULL
};
static void release_property_descriptor(property_desc_t *desc)
{
if(desc->explicit_value)
jsval_release(desc->value);
if(desc->getter)
jsdisp_release(desc->getter);
if(desc->setter)
jsdisp_release(desc->setter);
}
static HRESULT to_property_descriptor(script_ctx_t *ctx, jsdisp_t *attr_obj, property_desc_t *desc)
{
DISPID id;
jsval_t v;
BOOL b;
HRESULT hres;
memset(desc, 0, sizeof(*desc));
desc->value = jsval_undefined();
hres = jsdisp_get_id(attr_obj, L"enumerable", 0, &id);
if(SUCCEEDED(hres)) {
desc->mask |= PROPF_ENUMERABLE;
hres = jsdisp_propget(attr_obj, id, &v);
if(FAILED(hres))
return hres;
hres = to_boolean(v, &b);
jsval_release(v);
if(FAILED(hres))
return hres;
if(b)
desc->flags |= PROPF_ENUMERABLE;
}else if(hres != DISP_E_UNKNOWNNAME) {
return hres;
}
hres = jsdisp_get_id(attr_obj, L"configurable", 0, &id);
if(SUCCEEDED(hres)) {
desc->mask |= PROPF_CONFIGURABLE;
hres = jsdisp_propget(attr_obj, id, &v);
if(FAILED(hres))
return hres;
hres = to_boolean(v, &b);
jsval_release(v);
if(FAILED(hres))
return hres;
if(b)
desc->flags |= PROPF_CONFIGURABLE;
}else if(hres != DISP_E_UNKNOWNNAME) {
return hres;
}
hres = jsdisp_get_id(attr_obj, L"value", 0, &id);
if(SUCCEEDED(hres)) {
hres = jsdisp_propget(attr_obj, id, &desc->value);
if(FAILED(hres))
return hres;
desc->explicit_value = TRUE;
}else if(hres != DISP_E_UNKNOWNNAME) {
return hres;
}
hres = jsdisp_get_id(attr_obj, L"writable", 0, &id);
if(SUCCEEDED(hres)) {
desc->mask |= PROPF_WRITABLE;
hres = jsdisp_propget(attr_obj, id, &v);
if(SUCCEEDED(hres)) {
hres = to_boolean(v, &b);
jsval_release(v);
if(SUCCEEDED(hres) && b)
desc->flags |= PROPF_WRITABLE;
}
}else if(hres == DISP_E_UNKNOWNNAME) {
hres = S_OK;
}
if(FAILED(hres)) {
release_property_descriptor(desc);
return hres;
}
hres = jsdisp_get_id(attr_obj, L"get", 0, &id);
if(SUCCEEDED(hres)) {
desc->explicit_getter = TRUE;
hres = jsdisp_propget(attr_obj, id, &v);
if(SUCCEEDED(hres) && !is_undefined(v)) {
if(!is_object_instance(v)) {
FIXME("getter is not an object\n");
jsval_release(v);
hres = E_FAIL;
}else {
/* FIXME: Check IsCallable */
desc->getter = to_jsdisp(get_object(v));
if(!desc->getter)
FIXME("getter is not JS object\n");
}
}
}else if(hres == DISP_E_UNKNOWNNAME) {
hres = S_OK;
}
if(FAILED(hres)) {
release_property_descriptor(desc);
return hres;
}
hres = jsdisp_get_id(attr_obj, L"set", 0, &id);
if(SUCCEEDED(hres)) {
desc->explicit_setter = TRUE;
hres = jsdisp_propget(attr_obj, id, &v);
if(SUCCEEDED(hres) && !is_undefined(v)) {
if(!is_object_instance(v)) {
FIXME("setter is not an object\n");
jsval_release(v);
hres = E_FAIL;
}else {
/* FIXME: Check IsCallable */
desc->setter = to_jsdisp(get_object(v));
if(!desc->setter)
FIXME("setter is not JS object\n");
}
}
}else if(hres == DISP_E_UNKNOWNNAME) {
hres = S_OK;
}
if(FAILED(hres)) {
release_property_descriptor(desc);
return hres;
}
if(desc->explicit_getter || desc->explicit_setter) {
if(desc->explicit_value)
hres = JS_E_PROP_DESC_MISMATCH;
else if(desc->mask & PROPF_WRITABLE)
hres = JS_E_INVALID_WRITABLE_PROP_DESC;
}
if(FAILED(hres))
release_property_descriptor(desc);
return hres;
}
static HRESULT jsdisp_define_properties(script_ctx_t *ctx, jsdisp_t *obj, jsval_t list_val)
{
DISPID id = DISPID_STARTENUM;
property_desc_t prop_desc;
IDispatch *list_disp;
jsdisp_t *list_obj, *desc_obj;
jsval_t desc_val;
BSTR name;
HRESULT hres;
hres = to_object(ctx, list_val, &list_disp);
if(FAILED(hres))
return hres;
if(!(list_obj = to_jsdisp(list_disp))) {
FIXME("non-JS list obj\n");
IDispatch_Release(list_disp);
return E_NOTIMPL;
}
while(1) {
hres = jsdisp_next_prop(list_obj, id, TRUE, &id);
if(hres != S_OK)
break;
hres = jsdisp_propget(list_obj, id, &desc_val);
if(FAILED(hres))
break;
if(!is_object_instance(desc_val) || !get_object(desc_val) || !(desc_obj = to_jsdisp(get_object(desc_val)))) {
jsval_release(desc_val);
break;
}
hres = to_property_descriptor(ctx, desc_obj, &prop_desc);
jsdisp_release(desc_obj);
if(FAILED(hres))
break;
hres = IDispatchEx_GetMemberName(&list_obj->IDispatchEx_iface, id, &name);
if(SUCCEEDED(hres))
hres = jsdisp_define_property(obj, name, &prop_desc);
release_property_descriptor(&prop_desc);
if(FAILED(hres))
break;
}
jsdisp_release(list_obj);
return FAILED(hres) ? hres : S_OK;
}
static HRESULT Object_defineProperty(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags,
unsigned argc, jsval_t *argv, jsval_t *r)
{
property_desc_t prop_desc;
jsdisp_t *obj, *attr_obj;
const WCHAR *name;
jsstr_t *name_str;
HRESULT hres;
TRACE("\n");
if(argc < 1 || !is_object_instance(argv[0]))
return JS_E_OBJECT_EXPECTED;
obj = to_jsdisp(get_object(argv[0]));
if(!obj) {
FIXME("not implemented non-JS object\n");
return E_NOTIMPL;
}
hres = to_flat_string(ctx, argc >= 2 ? argv[1] : jsval_undefined(), &name_str, &name);
if(FAILED(hres))
return hres;
if(argc >= 3 && is_object_instance(argv[2])) {
attr_obj = to_jsdisp(get_object(argv[2]));
if(attr_obj) {
hres = to_property_descriptor(ctx, attr_obj, &prop_desc);
}else {
FIXME("not implemented non-JS object\n");
hres = E_NOTIMPL;
}
}else {
hres = JS_E_OBJECT_EXPECTED;
}
jsstr_release(name_str);
if(FAILED(hres))
return hres;
hres = jsdisp_define_property(obj, name, &prop_desc);
release_property_descriptor(&prop_desc);
if(SUCCEEDED(hres) && r)
*r = jsval_obj(jsdisp_addref(obj));
return hres;
}
static HRESULT Object_defineProperties(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags,
unsigned argc, jsval_t *argv, jsval_t *r)
{
jsdisp_t *obj;
HRESULT hres;
if(argc < 1 || !is_object_instance(argv[0]) || !get_object(argv[0]) || !(obj = to_jsdisp(get_object(argv[0])))) {
FIXME("not an object\n");
return E_NOTIMPL;
}
TRACE("%p\n", obj);
hres = jsdisp_define_properties(ctx, obj, argc >= 2 ? argv[1] : jsval_undefined());
if(SUCCEEDED(hres) && r)
*r = jsval_obj(jsdisp_addref(obj));
return hres;
}
static HRESULT Object_getOwnPropertyDescriptor(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags,
unsigned argc, jsval_t *argv, jsval_t *r)
{
property_desc_t prop_desc;
jsdisp_t *obj, *desc_obj;
const WCHAR *name;
jsstr_t *name_str;
HRESULT hres;
TRACE("\n");
if(argc < 1 || !is_object_instance(argv[0]))
return JS_E_OBJECT_EXPECTED;
obj = to_jsdisp(get_object(argv[0]));
if(!obj) {
FIXME("not implemented non-JS object\n");
return E_NOTIMPL;
}
hres = to_flat_string(ctx, argc >= 2 ? argv[1] : jsval_undefined(), &name_str, &name);
if(FAILED(hres))
return hres;
hres = jsdisp_get_own_property(obj, name, FALSE, &prop_desc);
jsstr_release(name_str);
if(hres == DISP_E_UNKNOWNNAME) {
if(r) *r = jsval_undefined();
return S_OK;
}
if(FAILED(hres))
return hres;
hres = create_object(ctx, NULL, &desc_obj);
if(FAILED(hres))
return hres;
if(prop_desc.explicit_getter || prop_desc.explicit_setter) {
hres = jsdisp_define_data_property(desc_obj, L"get", PROPF_ALL,
prop_desc.getter ? jsval_obj(prop_desc.getter) : jsval_undefined());
if(SUCCEEDED(hres))
hres = jsdisp_define_data_property(desc_obj, L"set", PROPF_ALL,
prop_desc.setter ? jsval_obj(prop_desc.setter) : jsval_undefined());
}else {
hres = jsdisp_propput_name(desc_obj, L"value", prop_desc.value);
if(SUCCEEDED(hres))
hres = jsdisp_define_data_property(desc_obj, L"writable", PROPF_ALL,
jsval_bool(!!(prop_desc.flags & PROPF_WRITABLE)));
}
if(SUCCEEDED(hres))
hres = jsdisp_define_data_property(desc_obj, L"enumerable", PROPF_ALL,
jsval_bool(!!(prop_desc.flags & PROPF_ENUMERABLE)));
if(SUCCEEDED(hres))
hres = jsdisp_define_data_property(desc_obj, L"configurable", PROPF_ALL,
jsval_bool(!!(prop_desc.flags & PROPF_CONFIGURABLE)));
release_property_descriptor(&prop_desc);
if(SUCCEEDED(hres) && r)
*r = jsval_obj(desc_obj);
else
jsdisp_release(desc_obj);
return hres;
}
static HRESULT Object_create(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags,
unsigned argc, jsval_t *argv, jsval_t *r)
{
jsdisp_t *proto = NULL, *obj;
HRESULT hres;
if(!argc || (!is_object_instance(argv[0]) && !is_null(argv[0]))) {
FIXME("Invalid arg\n");
return E_INVALIDARG;
}
TRACE("(%s)\n", debugstr_jsval(argv[0]));
if(argc && is_object_instance(argv[0])) {
if(get_object(argv[0]))
proto = to_jsdisp(get_object(argv[0]));
if(!proto) {
FIXME("Non-JS prototype\n");
return E_NOTIMPL;
}
}else if(!is_null(argv[0])) {
FIXME("Invalid arg %s\n", debugstr_jsval(argc ? argv[0] : jsval_undefined()));
return E_INVALIDARG;
}
hres = create_dispex(ctx, &ObjectInst_info, proto, &obj);
if(FAILED(hres))
return hres;
if(argc >= 2 && !is_undefined(argv[1]))
hres = jsdisp_define_properties(ctx, obj, argv[1]);
if(SUCCEEDED(hres) && r)
*r = jsval_obj(obj);
else
jsdisp_release(obj);
return hres;
}
static HRESULT Object_getPrototypeOf(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags,
unsigned argc, jsval_t *argv, jsval_t *r)
{
jsdisp_t *obj;
if(!argc || !is_object_instance(argv[0])) {
FIXME("invalid arguments\n");
return E_NOTIMPL;
}
TRACE("(%s)\n", debugstr_jsval(argv[0]));
obj = to_jsdisp(get_object(argv[0]));
if(!obj) {
FIXME("Non-JS object\n");
return E_NOTIMPL;
}
if(r)
*r = obj->prototype
? jsval_obj(jsdisp_addref(obj->prototype))
: jsval_null();
return S_OK;
}
static HRESULT Object_keys(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags,
unsigned argc, jsval_t *argv, jsval_t *r)
{
DISPID id = DISPID_STARTENUM;
jsdisp_t *obj, *array;
unsigned i = 0;
jsstr_t *key;
HRESULT hres;
if(!argc || !is_object_instance(argv[0])) {
FIXME("invalid arguments %s\n", debugstr_jsval(argv[0]));
return E_NOTIMPL;
}
TRACE("(%s)\n", debugstr_jsval(argv[0]));
obj = to_jsdisp(get_object(argv[0]));
if(!obj) {
FIXME("Non-JS object\n");
return E_NOTIMPL;
}
hres = create_array(ctx, 0, &array);
if(FAILED(hres))
return hres;
do {
hres = jsdisp_next_prop(obj, id, TRUE, &id);
if(hres != S_OK)
break;
hres = jsdisp_get_prop_name(obj, id, &key);
if(FAILED(hres))
break;
hres = jsdisp_propput_idx(array, i++, jsval_string(key));
jsstr_release(key);
} while(hres == S_OK);
if(SUCCEEDED(hres) && r)
*r = jsval_obj(array);
else
jsdisp_release(array);
return hres;
}
static HRESULT Object_preventExtensions(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned argc, jsval_t *argv, jsval_t *r)
{
jsdisp_t *obj;
if(!argc || !is_object_instance(argv[0]) || !get_object(argv[0])) {
FIXME("invalid arguments\n");
return E_NOTIMPL;
}
FIXME("(%s) semi-stub\n", debugstr_jsval(argv[0]));
obj = to_jsdisp(get_object(argv[0]));
if(!obj) {
FIXME("Non-JS object\n");
return E_NOTIMPL;
}
if(r) *r = jsval_obj(jsdisp_addref(obj));
return S_OK;
}
static const builtin_prop_t ObjectConstr_props[] = {
{L"create", Object_create, PROPF_ES5|PROPF_METHOD|2},
{L"defineProperties", Object_defineProperties, PROPF_ES5|PROPF_METHOD|2},
{L"defineProperty", Object_defineProperty, PROPF_ES5|PROPF_METHOD|2},
{L"getOwnPropertyDescriptor", Object_getOwnPropertyDescriptor, PROPF_ES5|PROPF_METHOD|2},
{L"getPrototypeOf", Object_getPrototypeOf, PROPF_ES5|PROPF_METHOD|1},
{L"keys", Object_keys, PROPF_ES5|PROPF_METHOD|1},
{L"preventExtensions", Object_preventExtensions, PROPF_ES5|PROPF_METHOD|1},
};
static const builtin_info_t ObjectConstr_info = {
JSCLASS_FUNCTION,
DEFAULT_FUNCTION_VALUE,
ARRAY_SIZE(ObjectConstr_props),
ObjectConstr_props,
NULL,
NULL
};
static HRESULT ObjectConstr_value(script_ctx_t *ctx, vdisp_t *jsthis, WORD flags, unsigned argc, jsval_t *argv,
jsval_t *r)
{
HRESULT hres;
TRACE("\n");
switch(flags) {
case DISPATCH_METHOD:
case DISPATCH_CONSTRUCT: {
jsdisp_t *obj;
if(argc) {
if(!is_undefined(argv[0]) && !is_null(argv[0]) && (!is_object_instance(argv[0]) || get_object(argv[0]))) {
IDispatch *disp;
hres = to_object(ctx, argv[0], &disp);
if(FAILED(hres))
return hres;
if(r)
*r = jsval_disp(disp);
else
IDispatch_Release(disp);
return S_OK;
}
}
hres = create_object(ctx, NULL, &obj);
if(FAILED(hres))
return hres;
if(r)
*r = jsval_obj(obj);
else
jsdisp_release(obj);
break;
}
default:
FIXME("unimplemented flags: %x\n", flags);
return E_NOTIMPL;
}
return S_OK;
}
HRESULT create_object_constr(script_ctx_t *ctx, jsdisp_t *object_prototype, jsdisp_t **ret)
{
return create_builtin_constructor(ctx, ObjectConstr_value, L"Object", &ObjectConstr_info, PROPF_CONSTR,
object_prototype, ret);
}
HRESULT create_object_prototype(script_ctx_t *ctx, jsdisp_t **ret)
{
return create_dispex(ctx, &Object_info, NULL, ret);
}
HRESULT create_object(script_ctx_t *ctx, jsdisp_t *constr, jsdisp_t **ret)
{
jsdisp_t *object;
HRESULT hres;
object = heap_alloc_zero(sizeof(jsdisp_t));
if(!object)
return E_OUTOFMEMORY;
hres = init_dispex_from_constr(object, ctx, &ObjectInst_info, constr ? constr : ctx->object_constr);
if(FAILED(hres)) {
heap_free(object);
return hres;
}
*ret = object;
return S_OK;
}
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