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 "ecmascript/require/js_require_manager.h"
17
18#include "ecmascript/interpreter/slow_runtime_stub.h"
19namespace panda::ecmascript {
20void RequireManager::InitializeCommonJS(JSThread *thread, CJSInfo cjsInfo)
21{
22    ObjectFactory *factory = thread->GetEcmaVM()->GetFactory();
23    const GlobalEnvConstants *globalConst = thread->GlobalConstants();
24
25    JSHandle<CjsModule> module = cjsInfo.moduleHdl;
26    JSHandle<JSTaggedValue> require = cjsInfo.requireHdl;
27    JSHandle<CjsExports> exports = cjsInfo.exportsHdl;
28    JSHandle<JSTaggedValue> filename = cjsInfo.filenameHdl;
29    JSHandle<JSTaggedValue> dirname = cjsInfo.dirnameHdl;
30
31    // Set module.exports ---> exports
32    JSHandle<JSTaggedValue> exportsKey = globalConst->GetHandledCjsExportsString();
33    SlowRuntimeStub::StObjByName(thread, module.GetTaggedValue(), exportsKey.GetTaggedValue(),
34                                 exports.GetTaggedValue());
35    // initialize module
36    CjsModule::InitializeModule(thread, module, filename, dirname);
37
38    // Set this.module ---> this.require.parent
39    JSHandle<JSTaggedValue> parentKey(factory->NewFromASCII("parent"));
40    SlowRuntimeStub::StObjByName(thread, require.GetTaggedValue(), parentKey.GetTaggedValue(),
41                                 module.GetTaggedValue());
42    // cache ----> Set Module._cache
43    JSHandle<JSTaggedValue> cacheKey = globalConst->GetHandledCjsCacheString();
44    JSHandle<JSTaggedValue> moduleObj(thread->GetEcmaVM()->GetGlobalEnv()->GetCjsModuleFunction());
45    JSTaggedValue modCache =
46        SlowRuntimeStub::LdObjByName(thread, moduleObj.GetTaggedValue(),
47                                     cacheKey.GetTaggedValue(), false, JSTaggedValue::Undefined());
48    JSHandle<CjsModuleCache> moduleCache = JSHandle<CjsModuleCache>(thread, modCache);
49    JSHandle<CjsModuleCache> newCache = CjsModuleCache::PutIfAbsentAndReset(thread, moduleCache,
50        JSHandle<JSTaggedValue>::Cast(filename), JSHandle<JSTaggedValue>(module));
51    SlowRuntimeStub::StObjByName(thread, moduleObj.GetTaggedValue(), cacheKey.GetTaggedValue(),
52                                 newCache.GetTaggedValue());
53}
54
55void RequireManager::CollectExecutedExp(JSThread *thread, CJSInfo cjsInfo)
56{
57    const GlobalEnvConstants *globalConst = thread->GlobalConstants();
58
59    JSHandle<CjsModule> module = cjsInfo.moduleHdl;
60    JSHandle<JSTaggedValue> filename = cjsInfo.filenameHdl;
61
62    // get Module from global env
63    JSHandle<JSTaggedValue> moduleObj(thread->GetEcmaVM()->GetGlobalEnv()->GetCjsModuleFunction());
64    JSHandle<JSTaggedValue> cacheKey = globalConst->GetHandledCjsCacheString();
65
66    JSTaggedValue executedCacheVal = SlowRuntimeStub::LdObjByName(thread, moduleObj.GetTaggedValue(),
67                                                                  cacheKey.GetTaggedValue(),
68                                                                  false, JSTaggedValue::Undefined());
69    JSHandle<CjsModuleCache> executedCache = JSHandle<CjsModuleCache>(thread, executedCacheVal);
70    JSHandle<CjsModuleCache> resetCache = CjsModuleCache::ResetModule(thread, executedCache,
71                                                                      filename,
72                                                                      JSHandle<JSTaggedValue>::Cast(module));
73    SlowRuntimeStub::StObjByName(thread, moduleObj.GetTaggedValue(), cacheKey.GetTaggedValue(),
74                                 resetCache.GetTaggedValue());
75}
76} // namespace panda::ecmascript