1/**
2 * Copyright (c) 2021 - 2023 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 "savedBindingsCtx.h"
17
18#include <ir/module/exportDefaultDeclaration.h>
19#include <ir/module/exportAllDeclaration.h>
20#include <ir/statements/functionDeclaration.h>
21#include <ir/base/scriptFunction.h>
22
23namespace ark::es2panda::compiler {
24
25void ImportDeclarationContext::BindImportDecl(ir::ImportDeclaration *importDecl)
26{
27    varbinder::ModuleScope::ImportDeclList declList(Allocator()->Adapter());
28
29    for (const auto &[name, variable] : VarBinder()->GetScope()->OrderedBindings(Allocator())) {
30        if (SavedBindings().find(name) != SavedBindings().end()) {
31            continue;
32        }
33
34        declList.push_back(variable->Declaration()->AsImportDecl());
35    }
36
37    VarBinder()->GetScope()->AsModuleScope()->AddImportDecl(importDecl, std::move(declList));
38}
39
40void ExportDeclarationContext::BindExportDecl(ir::AstNode *exportDecl)
41{
42    if (VarBinder() == nullptr) {
43        return;
44    }
45
46    varbinder::ModuleScope::ExportDeclList declList(Allocator()->Adapter());
47
48    if (exportDecl->IsExportDefaultDeclaration()) {
49        auto *decl = exportDecl->AsExportDefaultDeclaration();
50        auto *rhs = decl->Decl();
51
52        if (VarBinder()->GetScope()->Bindings().size() == SavedBindings().size()) {
53            if (rhs->IsFunctionDeclaration()) {
54                VarBinder()->AddDecl<varbinder::FunctionDecl>(rhs->Start(), VarBinder()->Allocator(),
55                                                              util::StringView(DEFAULT_EXPORT),
56                                                              rhs->AsFunctionDeclaration()->Function());
57            } else {
58                VarBinder()->AddDecl<varbinder::ConstDecl>(rhs->Start(), util::StringView(DEFAULT_EXPORT));
59            }
60        }
61    }
62
63    for (const auto &[name, variable] : VarBinder()->GetScope()->Bindings()) {
64        if (SavedBindings().find(name) != SavedBindings().end()) {
65            continue;
66        }
67
68        util::StringView exportName(exportDecl->IsExportDefaultDeclaration() ? "default" : name);
69
70        variable->AddFlag(varbinder::VariableFlags::LOCAL_EXPORT);
71        auto *decl =
72            VarBinder()->AddDecl<varbinder::ExportDecl>(variable->Declaration()->Node()->Start(), exportName, name);
73        declList.push_back(decl);
74    }
75
76    auto *moduleScope = VarBinder()->GetScope()->AsModuleScope();
77    moduleScope->AddExportDecl(exportDecl, std::move(declList));
78}
79
80}  // namespace ark::es2panda::compiler