/* define properties that JS Error() expose, such as
fileName, lineNumber and stack
*/
static void
define_error_properties(JSContext *context,
JSObject *obj)
{
jsid stack_name, filename_name, linenumber_name;
jsval stack, fileName, lineNumber;
if (!gjs_context_get_frame_info (context,
&stack,
&fileName,
&lineNumber))
return;
stack_name = gjs_runtime_get_const_string(JS_GetRuntime(context),
GJS_STRING_STACK);
filename_name = gjs_runtime_get_const_string(JS_GetRuntime(context),
GJS_STRING_FILENAME);
linenumber_name = gjs_runtime_get_const_string(JS_GetRuntime(context),
GJS_STRING_LINE_NUMBER);
JS_DefinePropertyById(context, obj, stack_name, stack,
NULL, NULL, JSPROP_ENUMERATE);
JS_DefinePropertyById(context, obj, filename_name, fileName,
NULL, NULL, JSPROP_ENUMERATE);
JS_DefinePropertyById(context, obj, linenumber_name, lineNumber,
NULL, NULL, JSPROP_ENUMERATE);
}
void ObjectWrapper::Key::define(JSContext* cx,
JS::HandleObject o,
JS::HandleValue value,
unsigned attrs) {
switch (_type) {
case Type::Field:
if (JS_DefineProperty(cx, o, _field, value, attrs))
return;
break;
case Type::Index:
if (JS_DefineElement(cx, o, _idx, value, attrs))
return;
break;
case Type::Id: {
JS::RootedId id(cx, _id);
if (JS_DefinePropertyById(cx, o, id, value, attrs))
return;
break;
}
case Type::InternedString: {
InternedStringId id(cx, _internedString);
if (JS_DefinePropertyById(cx, o, id, value, attrs))
return;
break;
}
}
throwCurrentJSException(cx, ErrorCodes::InternalError, "Failed to define value on a JSObject");
}
bool
doResolve(JSObject *obj, jsid id, uintN flags, JSObject **objp)
{
CHECK_EQUAL(resolveExitCount, 0);
AutoIncrCounters incr(this);
CHECK_EQUAL(obj, obj1 || obj == obj2);
CHECK(JSID_IS_STRING(id));
JSFlatString *str = JS_FlattenString(cx, JSID_TO_STRING(id));
CHECK(str);
jsval v;
if (JS_FlatStringEqualsAscii(str, "x")) {
if (obj == obj1) {
/* First resolve hook invocation. */
CHECK_EQUAL(resolveEntryCount, 1);
EVAL("obj2.y = true", &v);
CHECK_SAME(v, JSVAL_TRUE);
CHECK(JS_DefinePropertyById(cx, obj, id, JSVAL_FALSE, NULL, NULL, 0));
*objp = obj;
return true;
}
if (obj == obj2) {
CHECK_EQUAL(resolveEntryCount, 4);
*objp = NULL;
return true;
}
} else if (JS_FlatStringEqualsAscii(str, "y")) {
if (obj == obj2) {
CHECK_EQUAL(resolveEntryCount, 2);
CHECK(JS_DefinePropertyById(cx, obj, id, JSVAL_NULL, NULL, NULL, 0));
EVAL("obj1.x", &v);
CHECK(JSVAL_IS_VOID(v));
EVAL("obj1.y", &v);
CHECK_SAME(v, JSVAL_ZERO);
*objp = obj;
return true;
}
if (obj == obj1) {
CHECK_EQUAL(resolveEntryCount, 3);
EVAL("obj1.x", &v);
CHECK(JSVAL_IS_VOID(v));
EVAL("obj1.y", &v);
CHECK(JSVAL_IS_VOID(v));
EVAL("obj2.y", &v);
CHECK(JSVAL_IS_NULL(v));
EVAL("obj2.x", &v);
CHECK(JSVAL_IS_VOID(v));
EVAL("obj1.y = 0", &v);
CHECK_SAME(v, JSVAL_ZERO);
*objp = obj;
return true;
}
}
CHECK(false);
return false;
}
bool
doResolve(JS::HandleObject obj, JS::HandleId id, bool* resolvedp)
{
CHECK_EQUAL(resolveExitCount, 0);
AutoIncrCounters incr(this);
CHECK(obj == obj1 || obj == obj2);
CHECK(JSID_IS_STRING(id));
JSFlatString* str = JS_FlattenString(cx, JSID_TO_STRING(id));
CHECK(str);
JS::RootedValue v(cx);
if (JS_FlatStringEqualsAscii(str, "x")) {
if (obj == obj1) {
/* First resolve hook invocation. */
CHECK_EQUAL(resolveEntryCount, 1);
EVAL("obj2.y = true", &v);
CHECK(v.isTrue());
CHECK(JS_DefinePropertyById(cx, obj, id, JS::FalseHandleValue, JSPROP_RESOLVING));
*resolvedp = true;
return true;
}
if (obj == obj2) {
CHECK_EQUAL(resolveEntryCount, 4);
*resolvedp = false;
return true;
}
} else if (JS_FlatStringEqualsAscii(str, "y")) {
if (obj == obj2) {
CHECK_EQUAL(resolveEntryCount, 2);
CHECK(JS_DefinePropertyById(cx, obj, id, JS::NullHandleValue, JSPROP_RESOLVING));
EVAL("obj1.x", &v);
CHECK(v.isUndefined());
EVAL("obj1.y", &v);
CHECK(v.isInt32(0));
*resolvedp = true;
return true;
}
if (obj == obj1) {
CHECK_EQUAL(resolveEntryCount, 3);
EVAL("obj1.x", &v);
CHECK(v.isUndefined());
EVAL("obj1.y", &v);
CHECK(v.isUndefined());
EVAL("obj2.y", &v);
CHECK(v.isNull());
EVAL("obj2.x", &v);
CHECK(v.isUndefined());
EVAL("obj1.y = 0", &v);
CHECK(v.isInt32(0));
*resolvedp = true;
return true;
}
}
CHECK(false);
return false;
}
bool
doResolve(JSHandleObject obj, JSHandleId id, unsigned flags, JSMutableHandleObject objp)
{
CHECK_EQUAL(resolveExitCount, 0);
AutoIncrCounters incr(this);
CHECK_EQUAL(obj, obj1 || obj == obj2);
CHECK(JSID_IS_STRING(id));
JSFlatString *str = JS_FlattenString(cx, JSID_TO_STRING(id));
CHECK(str);
JS::RootedValue v(cx);
if (JS_FlatStringEqualsAscii(str, "x")) {
if (obj == obj1) {
/* First resolve hook invocation. */
CHECK_EQUAL(resolveEntryCount, 1);
EVAL("obj2.y = true", v.address());
CHECK_SAME(v, JSVAL_TRUE);
CHECK(JS_DefinePropertyById(cx, obj, id, JSVAL_FALSE, NULL, NULL, 0));
objp.set(obj);
return true;
}
if (obj == obj2) {
CHECK_EQUAL(resolveEntryCount, 4);
objp.set(NULL);
return true;
}
} else if (JS_FlatStringEqualsAscii(str, "y")) {
if (obj == obj2) {
CHECK_EQUAL(resolveEntryCount, 2);
CHECK(JS_DefinePropertyById(cx, obj, id, JSVAL_NULL, NULL, NULL, 0));
EVAL("obj1.x", v.address());
CHECK(JSVAL_IS_VOID(v));
EVAL("obj1.y", v.address());
CHECK_SAME(v, JSVAL_ZERO);
objp.set(obj);
return true;
}
if (obj == obj1) {
CHECK_EQUAL(resolveEntryCount, 3);
EVAL("obj1.x", v.address());
CHECK(JSVAL_IS_VOID(v));
EVAL("obj1.y", v.address());
CHECK(JSVAL_IS_VOID(v));
EVAL("obj2.y", v.address());
CHECK(JSVAL_IS_NULL(v));
EVAL("obj2.x", v.address());
CHECK(JSVAL_IS_VOID(v));
EVAL("obj1.y = 0", v.address());
CHECK_SAME(v, JSVAL_ZERO);
objp.set(obj);
return true;
}
}
CHECK(false);
return false;
}
bool
document_resolve(JSContext *cx, JS::HandleObject obj, JS::HandleId id, unsigned flags,
JS::MutableHandleObject objp)
{
// If id is "all", resolve document.all=true.
JS::RootedValue v(cx);
if (!JS_IdToValue(cx, id, &v))
return false;
if (JSVAL_IS_STRING(v)) {
JSString *str = JSVAL_TO_STRING(v);
JSFlatString *flatStr = JS_FlattenString(cx, str);
if (!flatStr)
return false;
if (JS_FlatStringEqualsAscii(flatStr, "all")) {
JS::Rooted<JSObject*> docAll(cx,
JS_NewObject(cx, &DocumentAllClass, JS::NullPtr(), JS::NullPtr()));
if (!docAll)
return false;
JS::Rooted<JS::Value> allValue(cx, ObjectValue(*docAll));
bool ok = JS_DefinePropertyById(cx, obj, id, allValue, nullptr, nullptr, 0);
objp.set(ok ? obj.get() : nullptr);
return ok;
}
}
objp.set(nullptr);
return true;
}
JSBool
gjs_define_root_importer(JSContext *context,
JSObject *in_object)
{
jsval importer;
JSBool success;
jsid imports_name;
success = JS_FALSE;
JS_BeginRequest(context);
importer = gjs_get_global_slot(context, GJS_GLOBAL_SLOT_IMPORTS);
imports_name = gjs_runtime_get_const_string(JS_GetRuntime(context),
GJS_STRING_IMPORTS);
if (!JS_DefinePropertyById(context, in_object,
imports_name, importer,
NULL, NULL,
GJS_MODULE_PROP_FLAGS)) {
gjs_debug(GJS_DEBUG_IMPORTER, "DefineProperty imports on %p failed",
in_object);
goto fail;
}
success = JS_TRUE;
fail:
JS_EndRequest(context);
return success;
}
bool
document_resolve(JSContext *cx, JS::HandleObject obj, JS::HandleId id, bool *resolvedp)
{
// If id is "all", resolve document.all=true.
JS::RootedValue v(cx);
if (!JS_IdToValue(cx, id, &v))
return false;
if (v.isString()) {
JSString *str = v.toString();
JSFlatString *flatStr = JS_FlattenString(cx, str);
if (!flatStr)
return false;
if (JS_FlatStringEqualsAscii(flatStr, "all")) {
JS::Rooted<JSObject*> docAll(cx,
JS_NewObject(cx, &DocumentAllClass, JS::NullPtr(), JS::NullPtr()));
if (!docAll)
return false;
JS::Rooted<JS::Value> allValue(cx, JS::ObjectValue(*docAll));
if (!JS_DefinePropertyById(cx, obj, id, allValue, 0))
return false;
*resolvedp = true;
return true;
}
}
*resolvedp = false;
return true;
}
/* PRBool resolve (in nsIXPConnectWrappedNative wrapper, in JSContextPtr cx, in JSObjectPtr obj, in jsval id); */
NS_IMETHODIMP
nsJSIID::NewResolve(nsIXPConnectWrappedNative *wrapper,
JSContext * cx, JSObject * obj,
jsid id, PRUint32 flags,
JSObject * *objp, PRBool *_retval)
{
XPCCallContext ccx(JS_CALLER, cx);
AutoMarkingNativeInterfacePtr iface(ccx);
const nsIID* iid;
mInfo->GetIIDShared(&iid);
iface = XPCNativeInterface::GetNewOrUsed(ccx, iid);
if(!iface)
return NS_OK;
XPCNativeMember* member = iface->FindMember(id);
if(member && member->IsConstant())
{
jsval val;
if(!member->GetConstantValue(ccx, iface, &val))
return NS_ERROR_OUT_OF_MEMORY;
*objp = obj;
*_retval = JS_DefinePropertyById(cx, obj, id, val, nsnull, nsnull,
JSPROP_ENUMERATE | JSPROP_READONLY |
JSPROP_PERMANENT);
}
return NS_OK;
}
static JSObject *
load_module_init(JSContext *context,
JSObject *in_object,
std::string &full_path)
{
JSObject *module_obj;
JSBool found;
jsid module_init_name;
/* First we check if js module has already been loaded */
module_init_name = gjs_context_get_const_string(context, GJS_STRING_MODULE_INIT);
if (JS_HasPropertyById(context, in_object, module_init_name, &found) && found) {
jsval module_obj_val;
if (JS_GetPropertyById(context,
in_object,
module_init_name,
&module_obj_val)) {
return JSVAL_TO_OBJECT(module_obj_val);
}
}
module_obj = create_module_object (context);
if (!import_file (context, "__init__", full_path, module_obj))
std::cout << "error\n";
if (!JS_DefinePropertyById(context, in_object,
module_init_name, OBJECT_TO_JSVAL(module_obj),
NULL, NULL,
GJS_MODULE_PROP_FLAGS & ~JSPROP_PERMANENT))
std::cout << "error\n";
return module_obj;
}
JSBool
gjs_define_root_importer_object(JSContext *context,
JS::HandleObject in_object,
JS::HandleObject root_importer)
{
JSBool success;
jsid imports_name;
success = JS_FALSE;
JS_BeginRequest(context);
JS::RootedValue importer (JS_GetRuntime(context),
OBJECT_TO_JSVAL(root_importer));
imports_name = gjs_context_get_const_string(context, GJS_STRING_IMPORTS);
if (!JS_DefinePropertyById(context, in_object,
imports_name, importer,
NULL, NULL,
GJS_MODULE_PROP_FLAGS)) {
gjs_debug(GJS_DEBUG_IMPORTER, "DefineProperty imports on %p failed",
(JSObject *) in_object);
goto fail;
}
success = JS_TRUE;
fail:
JS_EndRequest(context);
return success;
}
NS_IMETHODIMP
nsJetpack::NewResolve(nsIXPConnectWrappedNative *wrapper,
JSContext * cx, JSObject * obj,
jsval id, PRUint32 flags,
JSObject * *objp, PRBool *_retval)
{
if (JSVAL_IS_STRING(id) &&
strncmp(JS_GetStringBytes(JSVAL_TO_STRING(id)), "get", 3) == 0) {
JSFunction *get = JS_NewFunction(cx, getEndpoint, 0, 0,
JS_GetParent(cx, obj), "get");
if (!get) {
JS_ReportOutOfMemory(cx);
*_retval = PR_FALSE;
return NS_OK;
}
JSObject *getObj = JS_GetFunctionObject(get);
jsid idid;
*objp = obj;
*_retval = (JS_ValueToId(cx, id, &idid) &&
JS_DefinePropertyById(cx, obj, idid,
OBJECT_TO_JSVAL(getObj),
nsnull, nsnull,
JSPROP_ENUMERATE |
JSPROP_READONLY |
JSPROP_PERMANENT));
return NS_OK;
}
*objp = nsnull;
*_retval = PR_TRUE;
return NS_OK;
}
DEFINE_STD_ITERATOR() {
JL_DEFINE_ARGS;
JS::RootedObject itObj(cx, jl::newObject(cx));
JL_ASSERT_ALLOC( itObj );
JL_CHK( JS_DefineFunctionById(cx, itObj, JLID(cx, next), _stdIteratorNext, 0, 0) );
JL_CHK( JS_DefinePropertyById(cx, itObj, JLID(cx, source), JL_OBJVAL, NULL, NULL, 0) );
JL_RVAL.setObject(*itObj);
return true;
JL_BAD;
}
void OIDInfo::postInstall(JSContext* cx, JS::HandleObject global, JS::HandleObject proto) {
JS::RootedValue undef(cx);
undef.setUndefined();
if (!JS_DefinePropertyById(cx,
proto,
getScope(cx)->getInternedStringId(InternedString::str),
undef,
JSPROP_ENUMERATE | JSPROP_SHARED,
smUtils::wrapConstrainedMethod<Functions::getter, true, OIDInfo>,
nullptr)) {
uasserted(ErrorCodes::JSInterpreterFailure, "Failed to JS_DefinePropertyById");
}
}
PLDHashOperator
StatementEnumerator(TelemetryImpl::SlowSQLEntryType *entry, void *arg)
{
EnumeratorArgs *args = static_cast<EnumeratorArgs *>(arg);
const nsACString &statement = entry->GetKey();
jsval hitCount = UINT_TO_JSVAL(entry->mData.hitCount);
jsval totalTime = UINT_TO_JSVAL(entry->mData.totalTime);
args->statementIndex++;
JSObject *hitsAndTimeObj = JS_NewArrayObject(args->cx, 2, nsnull);
if (!hitsAndTimeObj ||
!JS_SetElement(args->cx, hitsAndTimeObj, 0, &hitCount) ||
!JS_SetElement(args->cx, hitsAndTimeObj, 1, &totalTime))
return PL_DHASH_STOP;
jsid propertyId = INT_TO_JSID(args->statementIndex);
JSBool success = JS_DefinePropertyById(args->cx, args->statsObj,
INT_TO_JSID(args->statementIndex),
OBJECT_TO_JSVAL(hitsAndTimeObj),
NULL, NULL, JSPROP_ENUMERATE);
if (!success)
return PL_DHASH_STOP;
JSString *string = JS_NewStringCopyN(args->cx, statement.BeginReading(), statement.Length());
if (!string)
return PL_DHASH_STOP;
success = JS_DefinePropertyById(args->cx, args->statementsObj,
INT_TO_JSID(args->statementIndex),
STRING_TO_JSVAL(string), NULL, NULL,
JSPROP_ENUMERATE);
if (!success)
return PL_DHASH_STOP;
return PL_DHASH_NEXT;
}
bool ScriptInterface::SetPropertyInt_(jsval obj, int name, jsval value, bool constant, bool enumerate)
{
uintN attrs = 0;
if (constant)
attrs |= JSPROP_READONLY | JSPROP_PERMANENT;
if (enumerate)
attrs |= JSPROP_ENUMERATE;
if (! JSVAL_IS_OBJECT(obj))
return false;
JSObject* object = JSVAL_TO_OBJECT(obj);
if (! JS_DefinePropertyById(m->m_cx, object, INT_TO_JSID(name), value, NULL, NULL, attrs))
return false;
return true;
}
bool ScriptInterface::SetPropertyInt_(JS::HandleValue obj, int name, JS::HandleValue value, bool constant, bool enumerate)
{
JSAutoRequest rq(m->m_cx);
uint attrs = 0;
if (constant)
attrs |= JSPROP_READONLY | JSPROP_PERMANENT;
if (enumerate)
attrs |= JSPROP_ENUMERATE;
if (!obj.isObject())
return false;
JS::RootedObject object(m->m_cx, &obj.toObject());
if (! JS_DefinePropertyById(m->m_cx, object, INT_TO_JSID(name), value, NULL, NULL, attrs))
return false;
return true;
}
static JSBool
ReifyPropertyOps(JSContext *cx, JSObject *obj, jsval idval, jsid interned_id,
const char *name, JSPropertyOp getter, JSPropertyOp setter,
JSObject **getterobjp, JSObject **setterobjp)
{
// Generate both getter and setter and stash them in the prototype.
jsval roots[2] = { JSVAL_NULL, JSVAL_NULL };
JSAutoTempValueRooter tvr(cx, 2, roots);
uintN attrs = JSPROP_SHARED;
JSObject *getterobj;
if(getter)
{
getterobj = GeneratePropertyOp(cx, obj, idval, 0, name, getter);
if(!getterobj)
return JS_FALSE;
roots[0] = OBJECT_TO_JSVAL(getterobj);
attrs |= JSPROP_GETTER;
}
else
getterobj = nsnull;
JSObject *setterobj;
if (setter)
{
setterobj = GeneratePropertyOp(cx, obj, idval, 1, name, setter);
if(!setterobj)
return JS_FALSE;
roots[1] = OBJECT_TO_JSVAL(setterobj);
attrs |= JSPROP_SETTER;
}
else
setterobj = nsnull;
if(getterobjp)
*getterobjp = getterobj;
if(setterobjp)
*setterobjp = setterobj;
return JS_DefinePropertyById(cx, obj, interned_id, JSVAL_VOID,
JS_DATA_TO_FUNC_PTR(JSPropertyOp, getterobj),
JS_DATA_TO_FUNC_PTR(JSPropertyOp, setterobj),
attrs);
}
static JSBool
XPC_COW_AddProperty(JSContext *cx, JSObject *obj, jsval id, jsval *vp)
{
obj = GetWrapper(obj);
jsval resolving;
if (!JS_GetReservedSlot(cx, obj, XPCWrapper::sFlagsSlot, &resolving)) {
return JS_FALSE;
}
if (HAS_FLAGS(resolving, FLAG_RESOLVING)) {
// Allow us to define a property on ourselves.
return JS_TRUE;
}
// Someone's adding a property to us. We need to protect ourselves from
// getters and setters.
JSObject *wrappedObj = GetWrappedObject(cx, obj);
if (!wrappedObj) {
return ThrowException(NS_ERROR_ILLEGAL_VALUE, cx);
}
jsid interned_id;
JSPropertyDescriptor desc;
if (!JS_ValueToId(cx, id, &interned_id) ||
!XPCWrapper::GetPropertyAttrs(cx, obj, interned_id, JSRESOLVE_QUALIFIED,
JS_TRUE, &desc)) {
return JS_FALSE;
}
NS_ASSERTION(desc.obj == obj, "The JS engine lies!");
if (desc.attrs & (JSPROP_GETTER | JSPROP_SETTER)) {
// Only chrome is allowed to add getters or setters to our object.
if (!AllowedToAct(cx, id)) {
return JS_FALSE;
}
}
return XPC_COW_RewrapForChrome(cx, obj, vp) &&
JS_DefinePropertyById(cx, wrappedObj, interned_id, *vp,
desc.getter, desc.setter, desc.attrs);
}
bool
DOMProxyHandler::defineProperty(JSContext* cx, JS::Handle<JSObject*> proxy, JS::Handle<jsid> id,
Handle<PropertyDescriptor> desc,
JS::ObjectOpResult &result, bool *defined) const
{
if (xpc::WrapperFactory::IsXrayWrapper(proxy)) {
return result.succeed();
}
JS::Rooted<JSObject*> expando(cx, EnsureExpandoObject(cx, proxy));
if (!expando) {
return false;
}
if (!JS_DefinePropertyById(cx, expando, id, desc, result)) {
return false;
}
*defined = true;
return true;
}
JSBool
document_resolve(JSContext *cx, JSHandleObject obj, JSHandleId id, unsigned flags, JSObject **objp)
{
// If id is "all", and we're not detecting, resolve document.all=true.
jsvalRoot v(cx);
if (!JS_IdToValue(cx, id, v.addr()))
return false;
if (JSVAL_IS_STRING(v.value())) {
JSString *str = JSVAL_TO_STRING(v.value());
JSFlatString *flatStr = JS_FlattenString(cx, str);
if (!flatStr)
return false;
if (JS_FlatStringEqualsAscii(flatStr, "all") && !(flags & JSRESOLVE_DETECTING)) {
JSBool ok = JS_DefinePropertyById(cx, obj, id, JSVAL_TRUE, NULL, NULL, 0);
*objp = ok ? obj.value() : NULL;
return ok;
}
}
*objp = NULL;
return true;
}
static JSObject *
load_module_init(JSContext *context,
JSObject *in_object,
const char *full_path)
{
JSObject *module_obj;
JSBool found;
jsid module_init_name;
GFile *file;
/* First we check if js module has already been loaded */
module_init_name = gjs_context_get_const_string(context, GJS_STRING_MODULE_INIT);
if (!is_extension_module (full_path) &&
JS_HasPropertyById(context, in_object, module_init_name, &found) && found) {
jsval module_obj_val;
if (JS_GetPropertyById(context,
in_object,
module_init_name,
&module_obj_val)) {
return JSVAL_TO_OBJECT(module_obj_val);
}
}
module_obj = create_module_object (context);
file = g_file_new_for_commandline_arg(full_path);
if (!import_file (context, "__init__", file, module_obj))
goto out;
if (!JS_DefinePropertyById(context, in_object,
module_init_name, OBJECT_TO_JSVAL(module_obj),
NULL, NULL,
GJS_MODULE_PROP_FLAGS & ~JSPROP_PERMANENT))
goto out;
out:
g_object_unref (file);
return module_obj;
}
bool
DOMProxyHandler::defineProperty(JSContext* cx, JS::Handle<JSObject*> proxy, JS::Handle<jsid> id,
JSPropertyDescriptor* desc)
{
if ((desc->attrs & JSPROP_GETTER) && desc->setter == JS_StrictPropertyStub) {
return JS_ReportErrorFlagsAndNumber(cx,
JSREPORT_WARNING | JSREPORT_STRICT |
JSREPORT_STRICT_MODE_ERROR,
js_GetErrorMessage, NULL,
JSMSG_GETTER_ONLY);
}
if (xpc::WrapperFactory::IsXrayWrapper(proxy)) {
return true;
}
JSObject* expando = EnsureExpandoObject(cx, proxy);
if (!expando) {
return false;
}
return JS_DefinePropertyById(cx, expando, id, desc->value, desc->getter, desc->setter,
desc->attrs);
}
static JSObject *
load_module_init(JSContext *context,
JSObject *in_object,
const char *full_path)
{
char *script;
gsize script_len;
jsval script_retval;
JSObject *module_obj;
GError *error;
JSBool found;
jsid module_init_name;
/* First we check if js module has already been loaded */
module_init_name = gjs_runtime_get_const_string(JS_GetRuntime(context),
GJS_STRING_MODULE_INIT);
if (JS_HasPropertyById(context, in_object, module_init_name, &found) && found) {
jsval module_obj_val;
if (JS_GetPropertyById(context,
in_object,
module_init_name,
&module_obj_val)) {
return JSVAL_TO_OBJECT(module_obj_val);
}
}
module_obj = JS_NewObject(context, NULL, NULL, NULL);
if (module_obj == NULL) {
return JS_FALSE;
}
/* https://bugzilla.mozilla.org/show_bug.cgi?id=599651 means we
* can't just pass in the global as the parent */
JS_SetParent(context, module_obj,
gjs_get_import_global (context));
/* Define module in importer for future use and to avoid module_obj
* object to be garbage collected during the evaluation of the script */
JS_DefinePropertyById(context, in_object,
module_init_name, OBJECT_TO_JSVAL(module_obj),
NULL, NULL,
GJS_MODULE_PROP_FLAGS & ~JSPROP_PERMANENT);
script_len = 0;
error = NULL;
if (!g_file_get_contents(full_path, &script, &script_len, &error)) {
if (!g_error_matches(error, G_FILE_ERROR, G_FILE_ERROR_ISDIR) &&
!g_error_matches(error, G_FILE_ERROR, G_FILE_ERROR_NOTDIR) &&
!g_error_matches(error, G_FILE_ERROR, G_FILE_ERROR_NOENT))
gjs_throw_g_error(context, error);
else
g_error_free(error);
return NULL;
}
g_assert(script != NULL);
gjs_debug(GJS_DEBUG_IMPORTER, "Importing %s", full_path);
if (!JS_EvaluateScript(context,
module_obj,
script,
script_len,
full_path,
1, /* line number */
&script_retval)) {
g_free(script);
/* If JSOPTION_DONT_REPORT_UNCAUGHT is set then the exception
* would be left set after the evaluate and not go to the error
* reporter function.
*/
if (JS_IsExceptionPending(context)) {
gjs_debug(GJS_DEBUG_IMPORTER,
"Module " MODULE_INIT_FILENAME " left an exception set");
gjs_log_and_keep_exception(context);
} else {
gjs_throw(context,
"JS_EvaluateScript() returned FALSE but did not set exception");
}
return NULL;
}
g_free(script);
return module_obj;
}
