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Support the updated spidermonkey bindings

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This commit is contained in:
Michael Wu 2015-09-23 16:53:03 -04:00
parent 32daa17d5c
commit e733a7c46a
20 changed files with 234 additions and 223 deletions
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172
components/script/dom/bindings/codegen/CodegenRust.py
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@ -341,7 +341,7 @@ class CGMethodCall(CGThing):
code = (
"if argc < %d {\n"
" throw_type_error(cx, \"Not enough arguments to %s.\");\n"
" return JSFalse;\n"
" return false;\n"
"}" % (requiredArgs, methodName))
self.cgRoot.prepend(
CGWrapper(CGGeneric(code), pre="\n", post="\n"))
@ -514,11 +514,11 @@ class CGMethodCall(CGThing):
CGSwitch("argcount",
argCountCases,
CGGeneric("throw_type_error(cx, \"Not enough arguments to %s.\");\n"
"return JSFalse;" % methodName)))
"return false;" % methodName)))
# XXXjdm Avoid unreachable statement warnings
# overloadCGThings.append(
# CGGeneric('panic!("We have an always-returning default case");\n'
# 'return JSFalse;'))
# 'return false;'))
self.cgRoot = CGWrapper(CGList(overloadCGThings, "\n"),
pre="\n")
@ -659,7 +659,7 @@ def getJSToNativeConversionInfo(type, descriptorProvider, failureCode=None,
# failureCode will prevent pending exceptions from being set in cases when
# they really should be!
if exceptionCode is None:
exceptionCode = "return JSFalse;"
exceptionCode = "return false;"
needsRooting = typeNeedsRooting(type, descriptorProvider)
@ -890,7 +890,7 @@ def getJSToNativeConversionInfo(type, descriptorProvider, failureCode=None,
if invalidEnumValueFatal:
handleInvalidEnumValueCode = exceptionCode
else:
handleInvalidEnumValueCode = "return JSTrue;"
handleInvalidEnumValueCode = "return true;"
transmute = "mem::transmute(index)"
if isMember == 'Dictionary':
@ -943,7 +943,7 @@ def getJSToNativeConversionInfo(type, descriptorProvider, failureCode=None,
else:
template = conversion
else:
template = CGIfElseWrapper("IsCallable(${val}.get().to_object()) != 0",
template = CGIfElseWrapper("IsCallable(${val}.get().to_object())",
conversion,
onFailureNotCallable(failureCode)).define()
template = wrapObjectTemplate(
@ -1019,7 +1019,7 @@ def getJSToNativeConversionInfo(type, descriptorProvider, failureCode=None,
declType = CGGeneric(typeName)
template = ("match %s::new(cx, ${val}) {\n"
" Ok(dictionary) => dictionary,\n"
" Err(_) => return JSFalse,\n"
" Err(_) => return false,\n"
"}" % typeName)
return handleOptional(template, declType, handleDefaultNull("%s::empty(cx)" % typeName))
@ -1044,7 +1044,7 @@ def getJSToNativeConversionInfo(type, descriptorProvider, failureCode=None,
conversionBehavior = "()"
if failureCode is None:
failureCode = 'return JSFalse'
failureCode = 'return false'
declType = CGGeneric(builtinNames[type.tag()])
if type.nullable():
@ -1223,7 +1223,7 @@ class CGArgumentConverter(CGThing):
return self.converter.define()
def wrapForType(jsvalRef, result='result', successCode='return JSTrue;', pre=''):
def wrapForType(jsvalRef, result='result', successCode='return true;', pre=''):
"""
Reflect a Rust value into JS.
@ -1767,7 +1767,7 @@ class CGDOMJSClass(CGThing):
def define(self):
traceHook = 'Some(%s)' % TRACE_HOOK_NAME
if self.descriptor.isGlobal():
traceHook = "Some(js::jsapi::_Z24JS_GlobalObjectTraceHookP8JSTracerP8JSObject)"
traceHook = "Some(js::jsapi::JS_GlobalObjectTraceHook)"
flags = "JSCLASS_IS_GLOBAL | JSCLASS_DOM_GLOBAL"
slots = "JSCLASS_GLOBAL_SLOT_COUNT + 1"
else:
@ -1807,7 +1807,7 @@ static Class: DOMJSClass = DOMJSClass {
ext: js::jsapi::ClassExtension {
outerObject: %s,
innerObject: None,
isWrappedNative: 0,
isWrappedNative: false,
weakmapKeyDelegateOp: None,
objectMovedOp: None,
},
@ -2687,7 +2687,7 @@ class CGPerSignatureCall(CGThing):
errorResult = None
if self.isFallible():
errorResult = " JSFalse"
errorResult = " false"
cgThings.append(CGCallGenerator(
errorResult,
@ -2810,7 +2810,7 @@ class CGSetterCall(CGPerSignatureCall):
def wrap_return_value(self):
# We have no return value
return "\nreturn JSTrue;"
return "\nreturn true;"
def getArgc(self):
return "1"
@ -2830,7 +2830,7 @@ class CGAbstractStaticBindingMethod(CGAbstractMethod):
Argument('libc::c_uint', 'argc'),
Argument('*mut JSVal', 'vp'),
]
CGAbstractMethod.__init__(self, descriptor, name, "u8", args, extern=True)
CGAbstractMethod.__init__(self, descriptor, name, "bool", args, extern=True)
def definition_body(self):
preamble = CGGeneric("""\
@ -2853,7 +2853,7 @@ class CGSpecializedMethod(CGAbstractExternMethod):
args = [Argument('*mut JSContext', 'cx'), Argument('HandleObject', '_obj'),
Argument('*const %s' % descriptor.concreteType, 'this'),
Argument('*const JSJitMethodCallArgs', 'args')]
CGAbstractExternMethod.__init__(self, descriptor, name, 'u8', args)
CGAbstractExternMethod.__init__(self, descriptor, name, 'bool', args)
def definition_body(self):
nativeName = CGSpecializedMethod.makeNativeName(self.descriptor,
@ -2862,7 +2862,7 @@ class CGSpecializedMethod(CGAbstractExternMethod):
self.descriptor, self.method),
pre="let this = &*this;\n"
"let args = &*args;\n"
"let argc = args.argc_;\n")
"let argc = args._base.argc_;\n")
@staticmethod
def makeNativeName(descriptor, method):
@ -2902,7 +2902,7 @@ class CGSpecializedGetter(CGAbstractExternMethod):
Argument('HandleObject', '_obj'),
Argument('*const %s' % descriptor.concreteType, 'this'),
Argument('JSJitGetterCallArgs', 'args')]
CGAbstractExternMethod.__init__(self, descriptor, name, "u8", args)
CGAbstractExternMethod.__init__(self, descriptor, name, "bool", args)
def definition_body(self):
nativeName = CGSpecializedGetter.makeNativeName(self.descriptor,
@ -2957,7 +2957,7 @@ class CGSpecializedSetter(CGAbstractExternMethod):
Argument('HandleObject', 'obj'),
Argument('*const %s' % descriptor.concreteType, 'this'),
Argument('JSJitSetterCallArgs', 'args')]
CGAbstractExternMethod.__init__(self, descriptor, name, "u8", args)
CGAbstractExternMethod.__init__(self, descriptor, name, "bool", args)
def definition_body(self):
nativeName = CGSpecializedSetter.makeNativeName(self.descriptor,
@ -2991,7 +2991,7 @@ class CGStaticSetter(CGAbstractStaticBindingMethod):
"let args = CallArgs::from_vp(vp, argc);\n"
"if argc == 0 {\n"
" throw_type_error(cx, \"Not enough arguments to %s setter.\");\n"
" return JSFalse;\n"
" return false;\n"
"}" % self.attr.identifier.name)
call = CGSetterCall(["global.r()"], self.attr.type, nativeName, self.descriptor,
self.attr)
@ -3013,12 +3013,12 @@ class CGSpecializedForwardingSetter(CGSpecializedSetter):
assert all(ord(c) < 128 for c in forwardToAttrName)
return CGGeneric("""\
let mut v = RootedValue::new(cx, UndefinedValue());
if JS_GetProperty(cx, obj, %s as *const u8 as *const libc::c_char, v.handle_mut()) == 0 {
return JSFalse;
if !JS_GetProperty(cx, obj, %s as *const u8 as *const libc::c_char, v.handle_mut()) {
return false;
}
if !v.ptr.is_object() {
throw_type_error(cx, "Value.%s is not an object.");
return JSFalse;
return false;
}
let target_obj = RootedObject::new(cx, v.ptr.to_object());
JS_SetProperty(cx, target_obj.handle(), %s as *const u8 as *const libc::c_char, args.get(0))
@ -3051,18 +3051,21 @@ class CGMemberJITInfo(CGThing):
initializer = fill(
"""
JSJitInfo {
_bindgen_data_1_: ${opName} as *const ::libc::c_void,
call: ${opName} as *const ::libc::c_void,
protoID: PrototypeList::ID::${name} as u16,
depth: ${depth},
_bitfield_1: ((JSJitInfo_OpType::${opType} as u32) << 0) |
((JSJitInfo_AliasSet::${aliasSet} as u32) << 4) |
((JSValueType::${returnType} as u32) << 8) |
((${isInfallible} as u32) << 16) |
((${isMovable} as u32) << 17) |
((${isAlwaysInSlot} as u32) << 18) |
((${isLazilyCachedInSlot} as u32) << 19) |
((${isTypedMethod} as u32) << 20) |
((${slotIndex} as u32) << 21)
_bitfield_1:
JSJitInfo::new_bitfield_1(
OpType::${opType} as u8,
AliasSet::${aliasSet} as u8,
JSValueType::${returnType} as u8,
${isInfallible},
${isMovable},
${isAlwaysInSlot},
${isLazilyCachedInSlot},
${isTypedMethod},
${slotIndex} as u16,
)
}
""",
opName=opName,
@ -3953,7 +3956,7 @@ class CGProxySpecialOperation(CGPerSignatureCall):
argument = arguments[1]
info = getJSToNativeConversionInfo(
argument.type, descriptor, treatNullAs=argument.treatNullAs,
exceptionCode="return JSFalse;")
exceptionCode="return false;")
template = info.template
declType = info.declType
needsRooting = info.needsRooting
@ -4082,7 +4085,7 @@ class CGDOMJSProxyHandler_getOwnPropertyDescriptor(CGAbstractExternMethod):
Argument('HandleId', 'id'),
Argument('MutableHandle<JSPropertyDescriptor>', 'desc')]
CGAbstractExternMethod.__init__(self, descriptor, "getOwnPropertyDescriptor",
"u8", args)
"bool", args)
self.descriptor = descriptor
def getBody(self):
@ -4097,7 +4100,7 @@ class CGDOMJSProxyHandler_getOwnPropertyDescriptor(CGAbstractExternMethod):
readonly = toStringBool(self.descriptor.operations['IndexedSetter'] is None)
fillDescriptor = ("desc.get().value = result_root.ptr;\n"
"fill_property_descriptor(&mut *desc.ptr, *proxy.ptr, %s);\n"
"return JSTrue;" % readonly)
"return true;" % readonly)
templateValues = {
'jsvalRef': 'result_root.handle_mut()',
'successCode': fillDescriptor,
@ -4114,7 +4117,7 @@ class CGDOMJSProxyHandler_getOwnPropertyDescriptor(CGAbstractExternMethod):
readonly = toStringBool(self.descriptor.operations['NamedSetter'] is None)
fillDescriptor = ("desc.get().value = result_root.ptr;\n"
"fill_property_descriptor(&mut *desc.ptr, *proxy.ptr, %s);\n"
"return JSTrue;" % readonly)
"return true;" % readonly)
templateValues = {
'jsvalRef': 'result_root.handle_mut()',
'successCode': fillDescriptor,
@ -4124,7 +4127,7 @@ class CGDOMJSProxyHandler_getOwnPropertyDescriptor(CGAbstractExternMethod):
# ResolveOwnProperty or EnumerateOwnProperties filter out named
# properties that shadow prototype properties.
namedGet = ("\n" +
"if RUST_JSID_IS_STRING(id) != 0 && !has_property_on_prototype(cx, proxy, id) {\n" +
"if RUST_JSID_IS_STRING(id) && !has_property_on_prototype(cx, proxy, id) {\n" +
CGIndenter(CGProxyNamedGetter(self.descriptor, templateValues)).define() + "\n" +
"}\n")
else:
@ -4134,18 +4137,18 @@ class CGDOMJSProxyHandler_getOwnPropertyDescriptor(CGAbstractExternMethod):
let expando = RootedObject::new(cx, get_expando_object(proxy));
//if (!xpc::WrapperFactory::IsXrayWrapper(proxy) && (expando = GetExpandoObject(proxy))) {
if !expando.ptr.is_null() {
if JS_GetPropertyDescriptorById(cx, expando.handle(), id, desc) == 0 {
return JSFalse;
if !JS_GetPropertyDescriptorById(cx, expando.handle(), id, desc) {
return false;
}
if !desc.get().obj.is_null() {
// Pretend the property lives on the wrapper.
desc.get().obj = *proxy.ptr;
return JSTrue;
return true;
}
}
""" + namedGet + """\
desc.get().obj = ptr::null_mut();
return JSTrue;"""
return true;"""
def definition_body(self):
return CGGeneric(self.getBody())
@ -4158,7 +4161,7 @@ class CGDOMJSProxyHandler_defineProperty(CGAbstractExternMethod):
Argument('HandleId', 'id'),
Argument('Handle<JSPropertyDescriptor>', 'desc'),
Argument('*mut ObjectOpResult', 'opresult')]
CGAbstractExternMethod.__init__(self, descriptor, "defineProperty", "u8", args)
CGAbstractExternMethod.__init__(self, descriptor, "defineProperty", "bool", args)
self.descriptor = descriptor
def getBody(self):
@ -4171,25 +4174,25 @@ class CGDOMJSProxyHandler_defineProperty(CGAbstractExternMethod):
" let this = UnwrapProxy(proxy);\n" +
" let this = &*this;\n" +
CGIndenter(CGProxyIndexedSetter(self.descriptor)).define() +
" return JSTrue;\n" +
" return true;\n" +
"}\n")
elif self.descriptor.operations['IndexedGetter']:
set += ("if get_array_index_from_id(cx, id).is_some() {\n" +
" return JSFalse;\n" +
" return false;\n" +
" //return ThrowErrorMessage(cx, MSG_NO_PROPERTY_SETTER, \"%s\");\n" +
"}\n") % self.descriptor.name
namedSetter = self.descriptor.operations['NamedSetter']
if namedSetter:
set += ("if RUST_JSID_IS_STRING(id) != 0 {\n" +
set += ("if RUST_JSID_IS_STRING(id) {\n" +
CGIndenter(CGProxyNamedSetter(self.descriptor)).define() +
" (*opresult).code_ = 0; /* SpecialCodes::OkCode */\n" +
" return JSTrue;\n" +
" return true;\n" +
"} else {\n" +
" return JSFalse;\n" +
" return false;\n" +
"}\n")
else:
set += ("if RUST_JSID_IS_STRING(id) != 0 {\n" +
set += ("if RUST_JSID_IS_STRING(id) {\n" +
CGIndenter(CGProxyNamedGetter(self.descriptor)).define() +
" if (found) {\n"
# TODO(Issue 5876)
@ -4197,10 +4200,10 @@ class CGDOMJSProxyHandler_defineProperty(CGAbstractExternMethod):
" // ? opresult.succeed()\n" +
" // : ThrowErrorMessage(cx, MSG_NO_NAMED_SETTER, \"${name}\");\n" +
" (*opresult).code_ = 0; /* SpecialCodes::OkCode */\n" +
" return JSTrue;\n" +
" return true;\n" +
" }\n" +
" (*opresult).code_ = 0; /* SpecialCodes::OkCode */\n" +
" return JSTrue;\n"
" return true;\n"
"}\n") % (self.descriptor.name, self.descriptor.name)
set += "return proxyhandler::define_property(%s);" % ", ".join(a.name for a in self.args)
return set
@ -4214,14 +4217,14 @@ class CGDOMJSProxyHandler_delete(CGAbstractExternMethod):
args = [Argument('*mut JSContext', 'cx'), Argument('HandleObject', 'proxy'),
Argument('HandleId', 'id'),
Argument('*mut ObjectOpResult', 'res')]
CGAbstractExternMethod.__init__(self, descriptor, "delete", "u8", args)
CGAbstractExternMethod.__init__(self, descriptor, "delete", "bool", args)
self.descriptor = descriptor
def getBody(self):
set = ""
if self.descriptor.operations['NamedDeleter']:
set += CGProxyNamedDeleter(self.descriptor).define()
set += "return proxyhandler::delete(%s) as u8;" % ", ".join(a.name for a in self.args)
set += "return proxyhandler::delete(%s);" % ", ".join(a.name for a in self.args)
return set
def definition_body(self):
@ -4233,7 +4236,7 @@ class CGDOMJSProxyHandler_ownPropertyKeys(CGAbstractExternMethod):
args = [Argument('*mut JSContext', 'cx'),
Argument('HandleObject', 'proxy'),
Argument('*mut AutoIdVector', 'props')]
CGAbstractExternMethod.__init__(self, descriptor, "own_property_keys", "u8", args)
CGAbstractExternMethod.__init__(self, descriptor, "own_property_keys", "bool", args)
self.descriptor = descriptor
def getBody(self):
@ -4272,7 +4275,7 @@ class CGDOMJSProxyHandler_ownPropertyKeys(CGAbstractExternMethod):
GetPropertyKeys(cx, rooted_expando.handle(), JSITER_OWNONLY | JSITER_HIDDEN | JSITER_SYMBOLS, props);
}
return JSTrue;
return true;
""")
return body
@ -4284,8 +4287,8 @@ class CGDOMJSProxyHandler_ownPropertyKeys(CGAbstractExternMethod):
class CGDOMJSProxyHandler_hasOwn(CGAbstractExternMethod):
def __init__(self, descriptor):
args = [Argument('*mut JSContext', 'cx'), Argument('HandleObject', 'proxy'),
Argument('HandleId', 'id'), Argument('*mut u8', 'bp')]
CGAbstractExternMethod.__init__(self, descriptor, "hasOwn", "u8", args)
Argument('HandleId', 'id'), Argument('*mut bool', 'bp')]
CGAbstractExternMethod.__init__(self, descriptor, "hasOwn", "bool", args)
self.descriptor = descriptor
def getBody(self):
@ -4296,18 +4299,18 @@ class CGDOMJSProxyHandler_hasOwn(CGAbstractExternMethod):
" let this = UnwrapProxy(proxy);\n" +
" let this = &*this;\n" +
CGIndenter(CGProxyIndexedGetter(self.descriptor)).define() + "\n" +
" *bp = found as u8;\n" +
" return JSTrue;\n" +
" *bp = found;\n" +
" return true;\n" +
"}\n\n")
else:
indexed = ""
namedGetter = self.descriptor.operations['NamedGetter']
if namedGetter:
named = ("if RUST_JSID_IS_STRING(id) != 0 && !has_property_on_prototype(cx, proxy, id) {\n" +
named = ("if RUST_JSID_IS_STRING(id) && !has_property_on_prototype(cx, proxy, id) {\n" +
CGIndenter(CGProxyNamedGetter(self.descriptor)).define() + "\n" +
" *bp = found as u8;\n"
" return JSTrue;\n"
" *bp = found;\n"
" return true;\n"
"}\n" +
"\n")
else:
@ -4316,16 +4319,16 @@ class CGDOMJSProxyHandler_hasOwn(CGAbstractExternMethod):
return indexed + """\
let expando = RootedObject::new(cx, get_expando_object(proxy));
if !expando.ptr.is_null() {
let mut b: u8 = 1;
let ok = JS_HasPropertyById(cx, expando.handle(), id, &mut b) != 0;
*bp = (b != 0) as u8;
if !ok || *bp != 0 {
return ok as u8;
let mut b = true;
let ok = JS_HasPropertyById(cx, expando.handle(), id, &mut b);
*bp = b;
if !ok || *bp {
return ok;
}
}
""" + named + """\
*bp = JSFalse;
return JSTrue;"""
*bp = false;
return true;"""
def definition_body(self):
return CGGeneric(self.getBody())
@ -4336,26 +4339,26 @@ class CGDOMJSProxyHandler_get(CGAbstractExternMethod):
args = [Argument('*mut JSContext', 'cx'), Argument('HandleObject', 'proxy'),
Argument('HandleObject', '_receiver'), Argument('HandleId', 'id'),
Argument('MutableHandleValue', 'vp')]
CGAbstractExternMethod.__init__(self, descriptor, "get", "u8", args)
CGAbstractExternMethod.__init__(self, descriptor, "get", "bool", args)
self.descriptor = descriptor
def getBody(self):
getFromExpando = """\
let expando = RootedObject::new(cx, get_expando_object(proxy));
if !expando.ptr.is_null() {
let mut hasProp = 0;
if JS_HasPropertyById(cx, expando.handle(), id, &mut hasProp) == 0 {
return JSFalse;
let mut hasProp = false;
if !JS_HasPropertyById(cx, expando.handle(), id, &mut hasProp) {
return false;
}
if hasProp != 0 {
return (JS_GetPropertyById(cx, expando.handle(), id, vp) != 0) as u8;
if hasProp {
return JS_GetPropertyById(cx, expando.handle(), id, vp);
}
}"""
templateValues = {
'jsvalRef': 'vp',
'successCode': 'return JSTrue;',
'successCode': 'return true;',
}
indexedGetter = self.descriptor.operations['IndexedGetter']
@ -4377,7 +4380,7 @@ if !expando.ptr.is_null() {
namedGetter = self.descriptor.operations['NamedGetter']
if namedGetter:
getNamed = ("if RUST_JSID_IS_STRING(id) != 0 {\n" +
getNamed = ("if RUST_JSID_IS_STRING(id) {\n" +
CGIndenter(CGProxyNamedGetter(self.descriptor, templateValues)).define() +
"}\n")
else:
@ -4390,15 +4393,15 @@ if !expando.ptr.is_null() {
%s
let mut found = false;
if !get_property_on_prototype(cx, proxy, id, &mut found, vp) {
return JSFalse;
return false;
}
if found {
return JSTrue;
return true;
}
%s
*vp.ptr = UndefinedValue();
return JSTrue;""" % (getIndexedOrExpando, getNamed)
return true;""" % (getIndexedOrExpando, getNamed)
def definition_body(self):
return CGGeneric(self.getBody())
@ -4479,7 +4482,7 @@ class CGClassConstructHook(CGAbstractExternMethod):
def __init__(self, descriptor):
args = [Argument('*mut JSContext', 'cx'), Argument('u32', 'argc'), Argument('*mut JSVal', 'vp')]
CGAbstractExternMethod.__init__(self, descriptor, CONSTRUCT_HOOK_NAME,
'u8', args)
'bool', args)
self._ctor = self.descriptor.interface.ctor()
def define(self):
@ -4509,7 +4512,7 @@ class CGClassNameConstructHook(CGAbstractExternMethod):
CGAbstractExternMethod.__init__(self, descriptor,
CONSTRUCT_HOOK_NAME + "_" +
self._ctor.identifier.name,
'u8', args)
'bool', args)
def definition_body(self):
preamble = CGGeneric("""\
@ -5077,7 +5080,7 @@ class CGBindingRoot(CGThing):
'js::jsapi::{RootedValue, JSNativeWrapper, JSNative, JSObject, JSPropertyDescriptor}',
'js::jsapi::{RootedId, JS_InternString, RootedString, INTERNED_STRING_TO_JSID}',
'js::jsapi::{JSPropertySpec}',
'js::jsapi::{JSString, JSTracer, JSJitInfo, JSJitInfo_OpType, JSJitInfo_AliasSet}',
'js::jsapi::{JSString, JSTracer, JSJitInfo, OpType, AliasSet}',
'js::jsapi::{MutableHandle, Handle, HandleId, JSType, JSValueType}',
'js::jsapi::{SymbolCode, ObjectOpResult, HandleValueArray}',
'js::jsapi::{JSJitGetterCallArgs, JSJitSetterCallArgs, JSJitMethodCallArgs, CallArgs}',
@ -5092,7 +5095,6 @@ class CGBindingRoot(CGThing):
'js::glue::{RUST_JS_NumberValue, RUST_JSID_IS_STRING, int_to_jsid}',
'js::glue::AppendToAutoIdVector',
'js::rust::GCMethods',
'js::{JSTrue, JSFalse}',
'dom::bindings',
'dom::bindings::global::GlobalRef',
'dom::bindings::global::global_object_for_js_object',
@ -5629,7 +5631,7 @@ class CallbackMethod(CallbackMember):
" elements_: ${argv}\n"
" }, rval.handle_mut())\n"
"};\n"
"if ok == 0 {\n"
"if !ok {\n"
" return Err(JSFailed);\n"
"}\n").substitute(replacements)
@ -5673,7 +5675,7 @@ class CallbackOperationBase(CallbackMethod):
if not self.singleOperation:
return 'JS::Rooted<JS::Value> callable(cx);\n' + getCallableFromProp
return (
'let isCallable = unsafe { IsCallable(self.parent.callback()) != 0 };\n'
'let isCallable = unsafe { IsCallable(self.parent.callback()) };\n'
'let callable =\n' +
CGIndenter(
CGIfElseWrapper('isCallable',