diff options
Diffstat (limited to 'components/script/dom/bindings/codegen/CodegenRust.py')
| -rw-r--r-- | components/script/dom/bindings/codegen/CodegenRust.py | 172 |
1 files changed, 87 insertions, 85 deletions
diff --git a/components/script/dom/bindings/codegen/CodegenRust.py b/components/script/dom/bindings/codegen/CodegenRust.py index 00df29230c3..9c5592c67b2 100644 --- a/components/script/dom/bindings/codegen/CodegenRust.py +++ b/components/script/dom/bindings/codegen/CodegenRust.py @@ -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', |