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
25namespace panda::es2panda::ir {
26
27void FunctionDeclaration::Iterate(const NodeTraverser &cb) const
28{
29    cb(func_);
30}
31
32void FunctionDeclaration::Dump(ir::AstDumper *dumper) const
33{
34    dumper->Add({{"type", func_->IsOverload() ? "TSDeclareFunction" : "FunctionDeclaration"}, {"function", func_}});
35}
36
37void FunctionDeclaration::Compile([[maybe_unused]] compiler::PandaGen *pg) const {}
38
39checker::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
60void 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