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 "newExpression.h"
17
18 #include <compiler/core/pandagen.h>
19 #include <typescript/checker.h>
20 #include <ir/astDump.h>
21 #include <ir/ts/tsTypeParameterInstantiation.h>
22
23 namespace panda::es2panda::ir {
24
Iterate(const NodeTraverser & cb) const25 void NewExpression::Iterate(const NodeTraverser &cb) const
26 {
27 cb(callee_);
28
29 if (typeParams_) {
30 cb(typeParams_);
31 }
32
33 for (auto *it : arguments_) {
34 cb(it);
35 }
36 }
37
Dump(ir::AstDumper * dumper) const38 void NewExpression::Dump(ir::AstDumper *dumper) const
39 {
40 dumper->Add({{"type", "NewExpression"}, {"callee", callee_}, {"typeParameters", AstDumper::Optional(typeParams_)},
41 {"arguments", arguments_}});
42 }
43
Compile(compiler::PandaGen * pg) const44 void NewExpression::Compile(compiler::PandaGen *pg) const
45 {
46 compiler::RegScope rs(pg);
47 compiler::VReg ctor = pg->AllocReg();
48
49 callee_->Compile(pg);
50 pg->StoreAccumulator(this, ctor);
51
52 if (!util::Helpers::ContainSpreadElement(arguments_)) {
53 for (const auto *it : arguments_) {
54 compiler::VReg arg = pg->AllocReg();
55 it->Compile(pg);
56 pg->StoreAccumulator(this, arg);
57 }
58
59 pg->NewObject(this, ctor, arguments_.size() + 1);
60 } else {
61 compiler::VReg argsObj = pg->AllocReg();
62
63 pg->CreateArray(this, arguments_, argsObj);
64 pg->NewObjSpread(this, ctor);
65 }
66 }
67
Check(checker::Checker * checker) const68 checker::Type *NewExpression::Check(checker::Checker *checker) const
69 {
70 checker::Type *calleeType = callee_->Check(checker);
71
72 // TODO(aszilagyi): handle optional chain
73 if (calleeType->IsObjectType()) {
74 checker::ObjectType *calleeObj = calleeType->AsObjectType();
75 return checker->resolveCallOrNewExpression(calleeObj->ConstructSignatures(), arguments_, Start());
76 }
77
78 checker->ThrowTypeError("This expression is not callable.", Start());
79 return nullptr;
80 }
81
UpdateSelf(const NodeUpdater & cb,binder::Binder * binder)82 void NewExpression::UpdateSelf(const NodeUpdater &cb, [[maybe_unused]] binder::Binder *binder)
83 {
84 callee_ = std::get<ir::AstNode *>(cb(callee_))->AsExpression();
85
86 for (auto iter = arguments_.begin(); iter != arguments_.end(); iter++) {
87 *iter = std::get<ir::AstNode *>(cb(*iter))->AsExpression();
88 }
89 }
90
91 } // namespace panda::es2panda::ir
92