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 <util/helpers.h>
19 #include <compiler/core/pandagen.h>
20 #include <compiler/core/regScope.h>
21 #include <typescript/checker.h>
22 #include <ir/astDump.h>
23 #include <ir/ts/tsTypeParameterInstantiation.h>
24
25 namespace panda::es2panda::ir {
26
Iterate(const NodeTraverser & cb) const27 void NewExpression::Iterate(const NodeTraverser &cb) const
28 {
29 cb(callee_);
30
31 if (typeParams_) {
32 cb(typeParams_);
33 }
34
35 for (auto *it : arguments_) {
36 cb(it);
37 }
38 }
39
Dump(ir::AstDumper * dumper) const40 void NewExpression::Dump(ir::AstDumper *dumper) const
41 {
42 dumper->Add({{"type", "NewExpression"}, {"callee", callee_}, {"typeParameters", AstDumper::Optional(typeParams_)},
43 {"arguments", arguments_}});
44 }
45
Compile(compiler::PandaGen * pg) const46 void NewExpression::Compile(compiler::PandaGen *pg) const
47 {
48 compiler::RegScope rs(pg);
49 compiler::VReg ctor = pg->AllocReg();
50
51 callee_->Compile(pg);
52 pg->StoreAccumulator(this, ctor);
53
54 if (!util::Helpers::ContainSpreadElement(arguments_)) {
55 for (const auto *it : arguments_) {
56 compiler::VReg arg = pg->AllocReg();
57 it->Compile(pg);
58 pg->StoreAccumulator(this, arg);
59 }
60
61 pg->NewObject(this, ctor, arguments_.size() + 1);
62 } else {
63 compiler::VReg argsObj = pg->AllocReg();
64
65 pg->CreateArray(this, arguments_, argsObj);
66 pg->NewObjSpread(this, ctor);
67 }
68 }
69
Check(checker::Checker * checker) const70 checker::Type *NewExpression::Check(checker::Checker *checker) const
71 {
72 checker::Type *calleeType = callee_->Check(checker);
73
74 // TODO(aszilagyi): handle optional chain
75 if (calleeType->IsObjectType()) {
76 checker::ObjectType *calleeObj = calleeType->AsObjectType();
77 return checker->resolveCallOrNewExpression(calleeObj->ConstructSignatures(), arguments_, Start());
78 }
79
80 checker->ThrowTypeError("This expression is not callable.", Start());
81 return nullptr;
82 }
83
UpdateSelf(const NodeUpdater & cb,binder::Binder * binder)84 void NewExpression::UpdateSelf(const NodeUpdater &cb, [[maybe_unused]] binder::Binder *binder)
85 {
86 callee_ = std::get<ir::AstNode *>(cb(callee_))->AsExpression();
87
88 for (auto iter = arguments_.begin(); iter != arguments_.end(); iter++) {
89 *iter = std::get<ir::AstNode *>(cb(*iter))->AsExpression();
90 }
91 }
92
93 } // namespace panda::es2panda::ir
94