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"
19 namespace panda::ecmascript {
InitializeCommonJS(JSThread * thread,CJSInfo cjsInfo)20 void 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
CollectExecutedExp(JSThread * thread,CJSInfo cjsInfo)55 void 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