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/ecma_vm.h"
19 #include "ecmascript/global_env.h"
20 #include "ecmascript/interpreter/slow_runtime_stub.h"
21 #include "ecmascript/object_factory.h"
22 #include "ecmascript/ecma_string.h"
23
24 namespace panda::ecmascript {
InitializeCommonJS(JSThread * thread,CJSInfo cjsInfo)25 void RequireManager::InitializeCommonJS(JSThread *thread, CJSInfo cjsInfo)
26 {
27 ObjectFactory *factory = thread->GetEcmaVM()->GetFactory();
28 const GlobalEnvConstants *globalConst = thread->GlobalConstants();
29
30 JSHandle<CjsModule> module = cjsInfo.moduleHdl;
31 JSHandle<JSTaggedValue> require = cjsInfo.requireHdl;
32 JSHandle<CjsExports> exports = cjsInfo.exportsHdl;
33 JSHandle<JSTaggedValue> filename = cjsInfo.filenameHdl;
34 JSHandle<JSTaggedValue> dirname = cjsInfo.dirnameHdl;
35
36 // Set module.exports ---> exports
37 JSHandle<JSTaggedValue> exportsKey = globalConst->GetHandledCjsExportsString();
38 SlowRuntimeStub::StObjByName(thread, module.GetTaggedValue(), exportsKey.GetTaggedValue(),
39 exports.GetTaggedValue());
40 // initialize module
41 CjsModule::InitializeModule(thread, module, filename, dirname);
42
43 // Set this.module ---> this.require.parent
44 JSHandle<JSTaggedValue> parentKey(factory->NewFromASCII("parent"));
45 SlowRuntimeStub::StObjByName(thread, require.GetTaggedValue(), parentKey.GetTaggedValue(),
46 module.GetTaggedValue());
47 // cache ----> Set Module._cache
48 JSHandle<JSTaggedValue> cacheKey = globalConst->GetHandledCjsCacheString();
49 JSHandle<JSTaggedValue> moduleObj(thread->GetEcmaVM()->GetGlobalEnv()->GetCjsModuleFunction());
50 JSTaggedValue modCache =
51 SlowRuntimeStub::LdObjByName(thread, moduleObj.GetTaggedValue(),
52 cacheKey.GetTaggedValue(), false, JSTaggedValue::Undefined());
53 JSHandle<CjsModuleCache> moduleCache = JSHandle<CjsModuleCache>(thread, modCache);
54 JSHandle<CjsModuleCache> newCache = CjsModuleCache::PutIfAbsentAndReset(thread, moduleCache,
55 JSHandle<JSTaggedValue>::Cast(filename), JSHandle<JSTaggedValue>(module));
56 SlowRuntimeStub::StObjByName(thread, moduleObj.GetTaggedValue(), cacheKey.GetTaggedValue(),
57 newCache.GetTaggedValue());
58 }
59
CollectExecutedExp(JSThread * thread,CJSInfo cjsInfo)60 void RequireManager::CollectExecutedExp(JSThread *thread, CJSInfo cjsInfo)
61 {
62 const GlobalEnvConstants *globalConst = thread->GlobalConstants();
63
64 JSHandle<CjsModule> module = cjsInfo.moduleHdl;
65 JSHandle<JSTaggedValue> filename = cjsInfo.filenameHdl;
66
67 // get Module from global env
68 JSHandle<JSTaggedValue> moduleObj(thread->GetEcmaVM()->GetGlobalEnv()->GetCjsModuleFunction());
69 JSHandle<JSTaggedValue> cacheKey = globalConst->GetHandledCjsCacheString();
70
71 JSTaggedValue executedCacheVal = SlowRuntimeStub::LdObjByName(thread, moduleObj.GetTaggedValue(),
72 cacheKey.GetTaggedValue(),
73 false, JSTaggedValue::Undefined());
74 JSHandle<CjsModuleCache> executedCache = JSHandle<CjsModuleCache>(thread, executedCacheVal);
75 JSHandle<CjsModuleCache> resetCache = CjsModuleCache::ResetModule(thread, executedCache,
76 filename,
77 JSHandle<JSTaggedValue>::Cast(module));
78 SlowRuntimeStub::StObjByName(thread, moduleObj.GetTaggedValue(), cacheKey.GetTaggedValue(),
79 resetCache.GetTaggedValue());
80 }
81 } // namespace panda::ecmascript