1 /*
2 * Copyright (c) 2025 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/cross_vm/dynamic_type_converter.h"
17
18 #include "ecmascript/js_bigint-inl.h"
19 #include "ecmascript/js_tagged_value.h"
20 #include "ecmascript/js_tagged_value-inl.h"
21 #include "common_interfaces/objects/base_object_dispatcher.h"
22 #include "common_interfaces/objects/base_type.h"
23
24 namespace panda::ecmascript {
25
26 DynamicTypeConverter DynamicTypeConverter::dynTypeConverter_;
27
Initialize()28 void DynamicTypeConverter::Initialize()
29 {
30 common::BaseObjectDispatcher::GetDispatcher().RegisterDynamicTypeConverter(&dynTypeConverter_);
31 }
32
WrapTagged(ThreadHolder * thread,BaseType value)33 JSTaggedValue DynamicTypeConverter::WrapTagged(ThreadHolder *thread, BaseType value)
34 {
35 JSTaggedValue result;
36 std::visit(
37 [&](auto&& arg) {
38 using T = std::decay_t<decltype(arg)>;
39 if constexpr (std::is_same_v<T, std::monostate>) {
40 result = JSTaggedValue::Hole();
41 } else if constexpr (std::is_same_v<T, bool>) {
42 result = JSTaggedValue(arg);
43 } else if constexpr (std::is_same_v<T, int64_t> || std::is_same_v<T, uint64_t>) {
44 result = JSTaggedValue(static_cast<double>(arg));
45 } else if constexpr (std::is_same_v<T, uint32_t>) {
46 result = JSTaggedValue(arg);
47 } else if constexpr (std::is_integral_v<T>) {
48 result = JSTaggedValue(static_cast<int32_t>(arg));
49 } else if constexpr (std::is_floating_point_v<T>) {
50 result = JSTaggedValue(static_cast<double>(arg));
51 } else if constexpr (std::is_same_v<T, common::BaseUndefined>) {
52 result = JSTaggedValue::Undefined();
53 } else if constexpr (std::is_same_v<T, common::BaseNull>) {
54 result = JSTaggedValue::Null();
55 } else if constexpr (std::is_same_v<T, common::BaseBigInt>) {
56 BigInt* bigInt = *BigInt::CreateBigint(thread->GetJSThread(), arg.length);
57 bigInt->SetSign(arg.sign);
58 for (uint32_t i = 0; i < arg.length; i++) {
59 bigInt->SetDigit(i, arg.data[i]);
60 }
61 result = JSTaggedValue(static_cast<TaggedObject*>(bigInt));
62 } else if constexpr (std::is_same_v<T, BaseObject*>) {
63 result = JSTaggedValue(static_cast<TaggedObject*>(arg));
64 } else if constexpr (std::is_same_v<T, BaseString*>) {
65 result = JSTaggedValue(EcmaString::FromBaseString(arg));
66 } else {
67 LOG_ECMA(FATAL) << "this branch is unreachable";
68 UNREACHABLE();
69 }
70 },
71 value);
72 return result;
73 }
74
UnWrapTagged(JSTaggedValue value)75 BaseType DynamicTypeConverter::UnWrapTagged(JSTaggedValue value)
76 {
77 if (value.IsBoolean()) {
78 return value.ToBoolean();
79 } else if (value.IsInt()) {
80 return static_cast<int32_t>(value.GetInt());
81 } else if (value.IsDouble()) {
82 return static_cast<double>(value.GetDouble());
83 } else if (value.IsUndefined()) {
84 return common::BaseUndefined();
85 } else if (value.IsNull()) {
86 return common::BaseNull();
87 } else if (value.IsBigInt()) {
88 BigInt *bigInt = BigInt::Cast(value.GetTaggedObject());
89 common::BaseBigInt baseBigInt;
90 baseBigInt.length = bigInt->GetLength();
91 baseBigInt.sign = bigInt->GetSign();
92 baseBigInt.data.resize(baseBigInt.length);
93 for (uint32_t i = 0; i < baseBigInt.length; i++) {
94 baseBigInt.data[i] = bigInt->GetDigit(i);
95 }
96 return baseBigInt;
97 } else if (value.IsString()) {
98 return EcmaString::Cast(value)->ToBaseString();
99 } else if (value.IsHeapObject()) {
100 return static_cast<BaseObject*>(value.GetTaggedObject());
101 } else {
102 LOG_ECMA(FATAL) << "this branch is unreachable";
103 UNREACHABLE();
104 }
105 return std::monostate();
106 }
107 }
108