1 /*
2 * Copyright (c) 2021 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 #include "ecmascript/builtins/builtins_boolean.h"
17 #include "ecmascript/js_primitive_ref.h"
18
19 namespace panda::ecmascript::builtins {
20 // ecma 19.3.1.1 Boolean(value)
BooleanConstructor(EcmaRuntimeCallInfo * argv)21 JSTaggedValue BuiltinsBoolean::BooleanConstructor(EcmaRuntimeCallInfo *argv)
22 {
23 BUILTINS_ENTRY_DEBUG_LOG();
24 ASSERT(argv);
25 JSThread *thread = argv->GetThread();
26 BUILTINS_API_TRACE(thread, Boolean, Constructor);
27 [[maybe_unused]] EcmaHandleScope handleScope(thread);
28 // 1. Let b be ToBoolean(value).
29 bool boolValue = GetCallArg(argv, 0)->ToBoolean();
30 // 2. If NewTarget is undefined, return b.
31 JSHandle<JSTaggedValue> newTarget = GetNewTarget(argv);
32 if (newTarget->IsUndefined()) {
33 return GetTaggedBoolean(boolValue);
34 }
35 // 3. Let O be OrdinaryCreateFromConstructor(NewTarget, "%BooleanPrototype%", [[BooleanData]] ).
36 // 5. Set the value of O's [[BooleanData]] internal slot to b.
37 ObjectFactory *factory = thread->GetEcmaVM()->GetFactory();
38 JSHandle<JSFunction> ctor = JSHandle<JSFunction>(GetConstructor(argv));
39 JSHandle<JSObject> result = factory->NewJSObjectByConstructor(ctor, newTarget);
40 // 4. ReturnIfAbrupt(O).
41 RETURN_EXCEPTION_IF_ABRUPT_COMPLETION(thread);
42 JSTaggedValue objValue = boolValue ? JSTaggedValue::True() : JSTaggedValue::False();
43 JSPrimitiveRef::Cast(*result)->SetValue(thread, objValue);
44 // 6. Return O.
45 return result.GetTaggedValue();
46 }
47
48 // ecma 19.3.3 abstract operation thisBooleanValue(value)
ThisBooleanValue(JSThread * thread,JSTaggedValue value)49 JSTaggedValue BuiltinsBoolean::ThisBooleanValue(JSThread *thread, JSTaggedValue value)
50 {
51 BUILTINS_API_TRACE(thread, Boolean, ThisBooleanValue);
52 // 1. If Type(value) is Boolean, return value
53 if (value.IsBoolean()) {
54 return value;
55 }
56 // 2. If Type(value) is Object and value has a [[BooleanData]] internal slot, then
57 if (value.IsJSPrimitiveRef()) {
58 JSTaggedValue primitive = JSPrimitiveRef::Cast(value.GetTaggedObject())->GetValue();
59 // a. Assert: value's [[BooleanData]] internal slot is a Boolean value.
60 if (primitive.IsBoolean()) {
61 // b. Return the value of value's [[BooleanData]] internal slot.
62 return primitive;
63 }
64 }
65 [[maybe_unused]] EcmaHandleScope handleScope(thread);
66 // 3. Throw a TypeError exception.
67 THROW_TYPE_ERROR_AND_RETURN(thread, "the type can not convert to BooleanValue", JSTaggedValue::Exception());
68 }
69
70 // ecma 19.3.3.2 Boolean.prototype.toString ()
BooleanPrototypeToString(EcmaRuntimeCallInfo * argv)71 JSTaggedValue BuiltinsBoolean::BooleanPrototypeToString(EcmaRuntimeCallInfo *argv)
72 {
73 ASSERT(argv);
74 JSThread *thread = argv->GetThread();
75 BUILTINS_API_TRACE(thread, Boolean, BooleanPrototypeToString);
76 [[maybe_unused]] EcmaHandleScope handleScope(thread);
77 // 1. Let b be thisBooleanValue(this value).
78 JSTaggedValue thisValueToBoolean = BuiltinsBoolean::ThisBooleanValue(thread, GetThis(argv).GetTaggedValue());
79 // 2. ReturnIfAbrupt(b)
80 RETURN_EXCEPTION_IF_ABRUPT_COMPLETION(thread);
81
82 // 3. If b is true, return "true"; else return "false".
83 return thisValueToBoolean.IsTrue() ? GetTaggedString(thread, "true") : GetTaggedString(thread, "false");
84 }
85
86 // ecma 19.3.3.3 Boolean.prototype.valueOf ()
BooleanPrototypeValueOf(EcmaRuntimeCallInfo * argv)87 JSTaggedValue BuiltinsBoolean::BooleanPrototypeValueOf(EcmaRuntimeCallInfo *argv)
88 {
89 ASSERT(argv);
90 JSThread *thread = argv->GetThread();
91 BUILTINS_API_TRACE(thread, Boolean, BooleanPrototypeValueOf);
92 // 1. Return thisBooleanValue(this value).
93 return BuiltinsBoolean::ThisBooleanValue(thread, GetThis(argv).GetTaggedValue());
94 }
95 } // namespace panda::ecmascript::builtins
96