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
25namespace panda::es2panda::ir {
26
27void 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
40void NewExpression::Dump(ir::AstDumper *dumper) const
41{
42    dumper->Add({{"type", "NewExpression"}, {"callee", callee_}, {"typeParameters", AstDumper::Optional(typeParams_)},
43                 {"arguments", arguments_}});
44}
45
46void 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
70checker::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
84void 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