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 #ifndef ECMASCRIPT_INTERPRETER_FAST_RUNTIME_STUB_INL_H
17 #define ECMASCRIPT_INTERPRETER_FAST_RUNTIME_STUB_INL_H
18
19 #include "ecmascript/interpreter/fast_runtime_stub.h"
20
21 #include "ecmascript/global_dictionary-inl.h"
22 #include "ecmascript/global_env.h"
23 #include "ecmascript/interpreter/interpreter.h"
24 #include "ecmascript/js_function.h"
25 #include "ecmascript/js_proxy.h"
26 #include "ecmascript/js_tagged_value-inl.h"
27 #include "ecmascript/object_factory-inl.h"
28 #include "ecmascript/object_fast_operator-inl.h"
29 #include "ecmascript/runtime_call_id.h"
30
31 namespace panda::ecmascript {
32 // NOLINTNEXTLINE(cppcoreguidelines-macro-usage)
33 #define CHECK_IS_ON_PROTOTYPE_CHAIN(receiver, holder) \
34 if (UNLIKELY((receiver) != (holder))) { \
35 return JSTaggedValue::Hole(); \
36 }
37
FastMul(JSTaggedValue left,JSTaggedValue right)38 JSTaggedValue FastRuntimeStub::FastMul(JSTaggedValue left, JSTaggedValue right)
39 {
40 if (left.IsNumber() && right.IsNumber()) {
41 return JSTaggedValue(left.GetNumber() * right.GetNumber());
42 }
43
44 return JSTaggedValue::Hole();
45 }
46
FastDiv(JSTaggedValue left,JSTaggedValue right)47 JSTaggedValue FastRuntimeStub::FastDiv(JSTaggedValue left, JSTaggedValue right)
48 {
49 if (left.IsNumber() && right.IsNumber()) {
50 double dLeft = left.IsInt() ? left.GetInt() : left.GetDouble();
51 double dRight = right.IsInt() ? right.GetInt() : right.GetDouble();
52 if (UNLIKELY(dRight == 0.0)) {
53 if (dLeft == 0.0 || std::isnan(dLeft)) {
54 return JSTaggedValue(base::NAN_VALUE);
55 }
56 uint64_t flagBit = ((bit_cast<uint64_t>(dLeft)) ^ (bit_cast<uint64_t>(dRight))) & base::DOUBLE_SIGN_MASK;
57 return JSTaggedValue(bit_cast<double>(flagBit ^ (bit_cast<uint64_t>(base::POSITIVE_INFINITY))));
58 }
59 return JSTaggedValue(dLeft / dRight);
60 }
61 return JSTaggedValue::Hole();
62 }
63
FastMod(JSTaggedValue left,JSTaggedValue right)64 JSTaggedValue FastRuntimeStub::FastMod(JSTaggedValue left, JSTaggedValue right)
65 {
66 if (right.IsInt() && left.IsInt()) {
67 int iRight = right.GetInt();
68 int iLeft = left.GetInt();
69 if (iRight > 0 && iLeft > 0) {
70 return JSTaggedValue(iLeft % iRight);
71 }
72 }
73 if (left.IsNumber() && right.IsNumber()) {
74 double dLeft = left.IsInt() ? left.GetInt() : left.GetDouble();
75 double dRight = right.IsInt() ? right.GetInt() : right.GetDouble();
76 if (dRight == 0.0 || std::isnan(dRight) || std::isnan(dLeft) || std::isinf(dLeft)) {
77 return JSTaggedValue(base::NAN_VALUE);
78 }
79 if (dLeft == 0.0 || std::isinf(dRight)) {
80 return JSTaggedValue(dLeft);
81 }
82 return JSTaggedValue(std::fmod(dLeft, dRight));
83 }
84 return JSTaggedValue::Hole();
85 }
86
FastEqual(JSTaggedValue left,JSTaggedValue right)87 JSTaggedValue FastRuntimeStub::FastEqual(JSTaggedValue left, JSTaggedValue right)
88 {
89 if (left == right) {
90 if (UNLIKELY(left.IsDouble())) {
91 return JSTaggedValue(!std::isnan(left.GetDouble()));
92 }
93 return JSTaggedValue::True();
94 }
95 if (left.IsNumber()) {
96 if (left.IsInt() && right.IsInt()) {
97 return JSTaggedValue::False();
98 }
99 }
100 if (right.IsUndefinedOrNull()) {
101 if (left.IsHeapObject()) {
102 return JSTaggedValue::False();
103 }
104 if (left.IsUndefinedOrNull()) {
105 return JSTaggedValue::True();
106 }
107 }
108 if (left.IsBoolean()) {
109 if (right.IsSpecial()) {
110 return JSTaggedValue::False();
111 }
112 }
113 if (left.IsBigInt() && right.IsBigInt()) {
114 return JSTaggedValue(BigInt::Equal(left, right));
115 }
116 return JSTaggedValue::Hole();
117 }
118
FastStrictEqual(JSTaggedValue left,JSTaggedValue right)119 bool FastRuntimeStub::FastStrictEqual(JSTaggedValue left, JSTaggedValue right)
120 {
121 if (left.IsNumber()) {
122 if (right.IsNumber()) {
123 double dLeft = left.IsInt() ? left.GetInt() : left.GetDouble();
124 double dRight = right.IsInt() ? right.GetInt() : right.GetDouble();
125 return JSTaggedValue::StrictNumberEquals(dLeft, dRight);
126 }
127 return false;
128 }
129 if (right.IsNumber()) {
130 return false;
131 }
132 if (left == right) {
133 return true;
134 }
135 if (left.IsString() && right.IsString()) {
136 return EcmaStringAccessor::StringsAreEqual(static_cast<EcmaString *>(left.GetTaggedObject()),
137 static_cast<EcmaString *>(right.GetTaggedObject()));
138 }
139 if (left.IsBigInt()) {
140 if (right.IsBigInt()) {
141 return BigInt::Equal(left, right);
142 }
143 return false;
144 }
145 if (right.IsBigInt()) {
146 return false;
147 }
148 return false;
149 }
150
CallGetter(JSThread * thread,JSTaggedValue receiver,JSTaggedValue holder,JSTaggedValue value)151 JSTaggedValue FastRuntimeStub::CallGetter(JSThread *thread, JSTaggedValue receiver, JSTaggedValue holder,
152 JSTaggedValue value)
153 {
154 return ObjectFastOperator::CallGetter(thread, receiver, holder, value);
155 }
156
CallSetter(JSThread * thread,JSTaggedValue receiver,JSTaggedValue value,JSTaggedValue accessorValue)157 JSTaggedValue FastRuntimeStub::CallSetter(JSThread *thread, JSTaggedValue receiver, JSTaggedValue value,
158 JSTaggedValue accessorValue)
159 {
160 return ObjectFastOperator::CallSetter(thread, receiver, value, accessorValue);
161 }
162
163 template<bool UseOwn>
GetPropertyByIndex(JSThread * thread,JSTaggedValue receiver,uint32_t index)164 JSTaggedValue FastRuntimeStub::GetPropertyByIndex(JSThread *thread, JSTaggedValue receiver, uint32_t index)
165 {
166 return ObjectFastOperator::GetPropertyByIndex<UseOwn>(thread, receiver, index);
167 }
168
169 template<bool UseOwn>
GetPropertyByValue(JSThread * thread,JSTaggedValue receiver,JSTaggedValue key)170 JSTaggedValue FastRuntimeStub::GetPropertyByValue(JSThread *thread, JSTaggedValue receiver, JSTaggedValue key)
171 {
172 return ObjectFastOperator::GetPropertyByValue<UseOwn>(thread, receiver, key);
173 }
174
175 template<bool UseOwn>
GetPropertyByName(JSThread * thread,JSTaggedValue receiver,JSTaggedValue key)176 JSTaggedValue FastRuntimeStub::GetPropertyByName(JSThread *thread, JSTaggedValue receiver, JSTaggedValue key)
177 {
178 return ObjectFastOperator::GetPropertyByName<UseOwn>(thread, receiver, key);
179 }
180
181 template<bool UseOwn>
SetPropertyByName(JSThread * thread,JSTaggedValue receiver,JSTaggedValue key,JSTaggedValue value)182 JSTaggedValue FastRuntimeStub::SetPropertyByName(JSThread *thread, JSTaggedValue receiver, JSTaggedValue key,
183 JSTaggedValue value)
184 {
185 return ObjectFastOperator::SetPropertyByName<UseOwn>(thread, receiver, key, value);
186 }
187
188 template<bool UseOwn>
SetPropertyByIndex(JSThread * thread,JSTaggedValue receiver,uint32_t index,JSTaggedValue value)189 JSTaggedValue FastRuntimeStub::SetPropertyByIndex(JSThread *thread, JSTaggedValue receiver, uint32_t index,
190 JSTaggedValue value)
191 {
192 return ObjectFastOperator::SetPropertyByIndex<UseOwn>(thread, receiver, index, value);
193 }
194
195 template<bool UseOwn>
SetPropertyByValue(JSThread * thread,JSTaggedValue receiver,JSTaggedValue key,JSTaggedValue value)196 JSTaggedValue FastRuntimeStub::SetPropertyByValue(JSThread *thread, JSTaggedValue receiver, JSTaggedValue key,
197 JSTaggedValue value)
198 {
199 return ObjectFastOperator::SetPropertyByValue<UseOwn>(thread, receiver, key, value);
200 }
201
GetGlobalOwnProperty(JSThread * thread,JSTaggedValue receiver,JSTaggedValue key)202 JSTaggedValue FastRuntimeStub::GetGlobalOwnProperty(JSThread *thread, JSTaggedValue receiver, JSTaggedValue key)
203 {
204 JSObject *obj = JSObject::Cast(receiver);
205 TaggedArray *properties = TaggedArray::Cast(obj->GetProperties().GetTaggedObject());
206 GlobalDictionary *dict = GlobalDictionary::Cast(properties);
207 int entry = dict->FindEntry(key);
208 if (entry != -1) {
209 auto value = dict->GetValue(entry);
210 if (UNLIKELY(value.IsAccessor())) {
211 return CallGetter(thread, receiver, receiver, value);
212 }
213 ASSERT(!value.IsAccessor());
214 return value;
215 }
216 return JSTaggedValue::Hole();
217 }
218
FastTypeOf(JSThread * thread,JSTaggedValue obj)219 JSTaggedValue FastRuntimeStub::FastTypeOf(JSThread *thread, JSTaggedValue obj)
220 {
221 INTERPRETER_TRACE(thread, FastTypeOf);
222 const GlobalEnvConstants *globalConst = thread->GlobalConstants();
223 switch (obj.GetRawData()) {
224 case JSTaggedValue::VALUE_TRUE:
225 case JSTaggedValue::VALUE_FALSE:
226 return globalConst->GetBooleanString();
227 case JSTaggedValue::VALUE_NULL:
228 return globalConst->GetObjectString();
229 case JSTaggedValue::VALUE_UNDEFINED:
230 return globalConst->GetUndefinedString();
231 default:
232 if (obj.IsHeapObject()) {
233 if (obj.IsString()) {
234 return globalConst->GetStringString();
235 }
236 if (obj.IsSymbol()) {
237 return globalConst->GetSymbolString();
238 }
239 if (obj.IsCallable()) {
240 return globalConst->GetFunctionString();
241 }
242 if (obj.IsBigInt()) {
243 return globalConst->GetBigIntString();
244 }
245 return globalConst->GetObjectString();
246 }
247 if (obj.IsNumber()) {
248 return globalConst->GetNumberString();
249 }
250 }
251 return globalConst->GetUndefinedString();
252 }
253
NewLexicalEnv(JSThread * thread,ObjectFactory * factory,uint16_t numVars)254 JSTaggedValue FastRuntimeStub::NewLexicalEnv(JSThread *thread, ObjectFactory *factory, uint16_t numVars)
255 {
256 INTERPRETER_TRACE(thread, NewLexicalEnv);
257 [[maybe_unused]] EcmaHandleScope handleScope(thread);
258 LexicalEnv *newEnv = factory->InlineNewLexicalEnv(numVars);
259 if (UNLIKELY(newEnv == nullptr)) {
260 return JSTaggedValue::Hole();
261 }
262 JSTaggedValue currentLexenv = thread->GetCurrentLexenv();
263 newEnv->SetParentEnv(thread, currentLexenv);
264 newEnv->SetScopeInfo(thread, JSTaggedValue::Hole());
265 return JSTaggedValue(newEnv);
266 }
267
NewThisObject(JSThread * thread,JSTaggedValue ctor,JSTaggedValue newTarget,InterpretedFrame * state)268 JSTaggedValue FastRuntimeStub::NewThisObject(JSThread *thread, JSTaggedValue ctor, JSTaggedValue newTarget,
269 InterpretedFrame *state)
270 {
271 [[maybe_unused]] EcmaHandleScope handleScope(thread);
272 ObjectFactory *factory = thread->GetEcmaVM()->GetFactory();
273
274 JSHandle<JSFunction> ctorHandle(thread, ctor);
275 JSHandle<JSTaggedValue> newTargetHandle(thread, newTarget);
276 JSHandle<JSObject> obj = factory->NewJSObjectByConstructor(ctorHandle, newTargetHandle);
277 RETURN_VALUE_IF_ABRUPT_COMPLETION(thread, JSTaggedValue::Exception());
278
279 Method *method = Method::Cast(ctorHandle->GetMethod().GetTaggedObject());
280 state->function = ctorHandle.GetTaggedValue();
281 state->constpool = method->GetConstantPool();
282 state->profileTypeInfo = method->GetProfileTypeInfo();
283 state->env = ctorHandle->GetLexicalEnv();
284
285 return obj.GetTaggedValue();
286 }
287 } // namespace panda::ecmascript
288 #endif // ECMASCRIPT_INTERPRETER_FAST_RUNTIME_STUB_INL_H
289