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 "functionDeclaration.h"
17
18 #include <binder/variable.h>
19 #include <binder/scope.h>
20 #include <typescript/checker.h>
21 #include <ir/astDump.h>
22 #include <ir/base/scriptFunction.h>
23 #include <ir/expressions/identifier.h>
24
25 namespace panda::es2panda::ir {
26
Iterate(const NodeTraverser & cb) const27 void FunctionDeclaration::Iterate(const NodeTraverser &cb) const
28 {
29 cb(func_);
30 }
31
Dump(ir::AstDumper * dumper) const32 void FunctionDeclaration::Dump(ir::AstDumper *dumper) const
33 {
34 dumper->Add({{"type", func_->IsOverload() ? "TSDeclareFunction" : "FunctionDeclaration"}, {"function", func_}});
35 }
36
Compile(compiler::PandaGen * pg) const37 void FunctionDeclaration::Compile([[maybe_unused]] compiler::PandaGen *pg) const {}
38
Check(checker::Checker * checker) const39 checker::Type *FunctionDeclaration::Check(checker::Checker *checker) const
40 {
41 if (func_->IsOverload()) {
42 return nullptr;
43 }
44
45 const util::StringView &funcName = func_->Id()->Name();
46 binder::ScopeFindResult result = checker->Scope()->Find(funcName);
47 ASSERT(result.variable);
48
49 checker::ScopeContext scopeCtx(checker, func_->Scope());
50
51 if (!result.variable->TsType()) {
52 checker->InferFunctionDeclarationType(result.variable->Declaration()->AsFunctionDecl(), result.variable);
53 }
54
55 func_->Body()->Check(checker);
56
57 return nullptr;
58 }
59
UpdateSelf(const NodeUpdater & cb,binder::Binder * binder)60 void FunctionDeclaration::UpdateSelf(const NodeUpdater &cb, [[maybe_unused]] binder::Binder *binder)
61 {
62 if (func_) {
63 func_ = std::get<ir::AstNode *>(cb(func_))->AsScriptFunction();
64 }
65 }
66
67 } // namespace panda::es2panda::ir
68