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1/*
2 * Copyright (c) 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
16import path from 'path';
17
18import {
19  ESMODULE,
20  GEN_ABC_PLUGIN_NAME
21} from './common/ark_define';
22import { ModuleSourceFile } from './module/module_source_file';
23import {
24  isAotMode,
25  isCommonJsPluginVirtualFile,
26  isDebug,
27  isJsonSourceFile,
28  isJsSourceFile,
29  isTsOrEtsSourceFile,
30  shouldETSOrTSFileTransformToJS
31} from './utils';
32import {
33  toUnixPath,
34  emitLogInfo,
35  getTransformLog
36} from '../../utils';
37import {
38  getHookEventFactory,
39  createAndStartEvent,
40  stopEvent
41} from '../../ark_utils';
42import {
43  resetReExportCheckLog,
44  reExportNoCheckMode,
45  processJsCodeLazyImport,
46  reExportCheckLog,
47  LazyImportOptions
48} from '../../process_lazy_import';
49import { SourceMapGenerator } from './generate_sourcemap';
50import { MemoryMonitor } from '../meomry_monitor/rollup-plugin-memory-monitor';
51import { MemoryDefine } from '../meomry_monitor/memory_define';
52
53/**
54 * rollup transform hook
55 * @param {string} code: transformed source code of an input file
56 * @param {string} id: absolute path of an input file
57 */
58export function transformForModule(code: string, id: string): string {
59  const hookEventFactory = getHookEventFactory(this.share, 'genAbc', 'transform');
60  const eventTransformForModule = createAndStartEvent(hookEventFactory, 'transform for module');
61  const {
62    autoLazyImport,
63    reExportCheckMode
64  }: LazyImportOptions = {
65    autoLazyImport: this.share.projectConfig?.autoLazyImport ?? false,
66    reExportCheckMode: this.share.projectConfig?.reExportCheckMode ?? reExportNoCheckMode
67  };
68  if (this.share.projectConfig.compileMode === ESMODULE) {
69    const metaInfo: Object = this.getModuleInfo(id).meta;
70    const projectConfig: Object = Object.assign(this.share.arkProjectConfig, this.share.projectConfig);
71    if (isTsOrEtsSourceFile(id) && shouldETSOrTSFileTransformToJS(id, projectConfig, metaInfo)) {
72      preserveSourceMap(id, this.getCombinedSourcemap(), projectConfig, metaInfo, eventTransformForModule);
73      // when ets/ts -> js, we need to convert lazy-import based on the js code generated after tsc conversion
74      code = processJsCodeLazyImport(id, code, autoLazyImport, reExportCheckMode);
75      const newSourceFileRecordInfo = MemoryMonitor.recordStage(MemoryDefine.MODULE_SOURCE_FILE_NEW_SOURCE_FILE);
76      ModuleSourceFile.newSourceFile(id, code, metaInfo, projectConfig.singleFileEmit);
77      MemoryMonitor.stopRecordStage(newSourceFileRecordInfo);
78    }
79
80    if (isJsSourceFile(id) || isJsonSourceFile(id)) {
81      let code: string = this.getModuleInfo(id).originalCode;
82      if (isJsSourceFile(id)) {
83        code = processJsCodeLazyImport(id, code, autoLazyImport, reExportCheckMode);
84        if (projectConfig.compatibleSdkVersion <= 10) {
85          const transformedResult: object = transformJsByBabelPlugin(code, eventTransformForModule);
86          code = transformedResult.code;
87          preserveSourceMap(id, transformedResult.map, projectConfig, metaInfo, eventTransformForModule);
88        } else {
89          // preserve sourceMap of js file without transforming
90          preserveSourceMap(id, this.getCombinedSourcemap(), projectConfig, metaInfo, eventTransformForModule);
91        }
92      }
93      const recordInfo = MemoryMonitor.recordStage(MemoryDefine.MODULE_SOURCE_FILE_NEW_SOURCE_FILE);
94      ModuleSourceFile.newSourceFile(id, code, metaInfo, projectConfig.singleFileEmit);
95      MemoryMonitor.stopRecordStage(recordInfo);
96    }
97  }
98  stopEvent(eventTransformForModule);
99
100  if (reExportCheckLog && reExportCheckLog.errors.length &&
101    reExportCheckMode !== reExportNoCheckMode && !this.share.projectConfig.ignoreWarning) {
102    emitLogInfo(this.share.getLogger(GEN_ABC_PLUGIN_NAME), [...getTransformLog(reExportCheckLog)], true, id);
103    resetReExportCheckLog();
104  }
105
106  // if we perform lazy-import conversion, we need to return the converted js code
107  return code;
108}
109
110function preserveSourceMap(sourceFilePath: string, sourcemap: Object, projectConfig: Object, metaInfo: Object, parentEvent: Object): void {
111  if (isCommonJsPluginVirtualFile(sourceFilePath)) {
112    // skip automatic generated files like 'jsfile.js?commonjs-exports'
113    return;
114  }
115
116  const eventAddSourceMapInfo = createAndStartEvent(parentEvent, 'preserve source map for ts/ets files');
117  const relativeSourceFilePath = sourceFilePath.startsWith(projectConfig.projectRootPath) ?
118    toUnixPath(sourceFilePath.replace(projectConfig.projectRootPath + path.sep, '')) :
119    toUnixPath(sourceFilePath.replace(metaInfo.belongProjectPath + path.sep, ''));
120  sourcemap.sources = [relativeSourceFilePath];
121  sourcemap.file = path.basename(relativeSourceFilePath);
122  sourcemap.sourcesContent && delete sourcemap.sourcesContent;
123  const sourceMapGenerator = SourceMapGenerator.getInstance();
124  const key = sourceMapGenerator.isNewSourceMaps() ? sourceFilePath : relativeSourceFilePath;
125  sourceMapGenerator.fillSourceMapPackageInfo(sourceFilePath, sourcemap);
126  sourceMapGenerator.updateSourceMap(key, sourcemap);
127  stopEvent(eventAddSourceMapInfo);
128}
129
130function transformJsByBabelPlugin(code: string, parentEvent: Object): Object {
131  const eventTransformByBabel = createAndStartEvent(parentEvent, 'transform Js by babel plugin');
132  const transformed: Object = require('@babel/core').transformSync(code,
133    {
134      plugins: [
135        [require("@babel/plugin-proposal-class-properties"), { "loose": true }]
136      ],
137      compact: false,
138      sourceMaps: true
139    }
140  );
141  stopEvent(eventTransformByBabel);
142  return transformed;
143}