xref: /developtools/ace_ets2bundle/compiler/src/validate_ui_syntax.ts

/*
 * Copyright (c) 2021 Huawei Device Co., Ltd.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import ts from 'typescript';
import path from 'path';

import {
  INNER_COMPONENT_DECORATORS,
  COMPONENT_DECORATOR_ENTRY,
  COMPONENT_DECORATOR_PREVIEW,
  COMPONENT_DECORATOR_COMPONENT,
  COMPONENT_DECORATOR_CUSTOM_DIALOG,
  NATIVE_MODULE,
  SYSTEM_PLUGIN,
  OHOS_PLUGIN,
  INNER_COMPONENT_MEMBER_DECORATORS,
  COMPONENT_FOREACH,
  COMPONENT_LAZYFOREACH,
  COMPONENT_STATE_DECORATOR,
  COMPONENT_LINK_DECORATOR,
  COMPONENT_PROP_DECORATOR,
  COMPONENT_STORAGE_PROP_DECORATOR,
  COMPONENT_STORAGE_LINK_DECORATOR,
  COMPONENT_PROVIDE_DECORATOR,
  COMPONENT_CONSUME_DECORATOR,
  COMPONENT_OBJECT_LINK_DECORATOR,
  COMPONENT_OBSERVED_DECORATOR,
  COMPONENT_LOCAL_STORAGE_LINK_DECORATOR,
  COMPONENT_LOCAL_STORAGE_PROP_DECORATOR,
  COMPONENT_CONCURRENT_DECORATOR,
  CHECK_EXTEND_DECORATORS,
  COMPONENT_STYLES_DECORATOR,
  RESOURCE_NAME_TYPE,
  COMPONENT_BUTTON,
  COMPONENT_TOGGLE,
  COMPONENT_BUILDERPARAM_DECORATOR,
  ESMODULE,
  CARD_ENABLE_DECORATORS,
  CARD_LOG_TYPE_DECORATORS,
  JSBUNDLE,
  COMPONENT_DECORATOR_REUSEABLE,
  STRUCT_DECORATORS,
  STRUCT_CONTEXT_METHOD_DECORATORS,
  CHECK_COMPONENT_EXTEND_DECORATOR,
  CHECK_COMPONENT_ANIMATABLE_EXTEND_DECORATOR,
  CLASS_TRACK_DECORATOR,
  COMPONENT_REQUIRE_DECORATOR,
  COMPONENT_SENDABLE_DECORATOR,
  CLASS_MIN_TRACK_DECORATOR,
  MIN_OBSERVED,
  COMPONENT_NON_DECORATOR,
  COMPONENT_DECORATOR_COMPONENT_V2,
  OBSERVED,
  SENDABLE,
  TYPE,
  COMPONENT_LOCAL_BUILDER_DECORATOR
} from './pre_define';
import {
  INNER_COMPONENT_NAMES,
  AUTOMIC_COMPONENT,
  SINGLE_CHILD_COMPONENT,
  SPECIFIC_CHILD_COMPONENT,
  BUILDIN_STYLE_NAMES,
  EXTEND_ATTRIBUTE,
  GLOBAL_STYLE_FUNCTION,
  STYLES_ATTRIBUTE,
  CUSTOM_BUILDER_METHOD,
  GLOBAL_CUSTOM_BUILDER_METHOD,
  INNER_CUSTOM_BUILDER_METHOD,
  INNER_STYLE_FUNCTION,
  INNER_CUSTOM_LOCALBUILDER_METHOD
} from './component_map';
import {
  LogType,
  LogInfo,
  componentInfo,
  addLog,
  hasDecorator,
  storedFileInfo,
  ExtendResult
} from './utils';
import { globalProgram, projectConfig, abilityPagesFullPath } from '../main';
import {
  collectExtend,
  isExtendFunction,
  transformLog,
  validatorCard
} from './process_ui_syntax';
import {
  isBuilderOrLocalBuilder,
  builderConditionType
} from './process_component_class';
import { stateObjectCollection } from './process_component_member';
import { collectSharedModule } from './fast_build/ark_compiler/check_shared_module';
import constantDefine from './constant_define';
import processStructComponentV2, { StructInfo } from './process_struct_componentV2';
import { getMessageCollection } from './log_message_collection';

export class ComponentCollection {
  localStorageName: string = null;
  localStorageNode: ts.Identifier | ts.ObjectLiteralExpression = null;
  localSharedStorage: ts.Node = null;
  entryComponentPos: number = null;
  entryComponent: string = null;
  previewComponent: Array<string> = [];
  customDialogs: Set<string> = new Set([]);
  customComponents: Set<string> = new Set([]);
  currentClassName: string = null;
}

export class IComponentSet {
  properties: Set<string> = new Set();
  regulars: Set<string> = new Set();
  states: Set<string> = new Set();
  links: Set<string> = new Set();
  props: Set<string> = new Set();
  storageProps: Set<string> = new Set();
  storageLinks: Set<string> = new Set();
  provides: Set<string> = new Set();
  consumes: Set<string> = new Set();
  objectLinks: Set<string> = new Set();
  localStorageLink: Map<string, Set<string>> = new Map();
  localStorageProp: Map<string, Set<string>> = new Map();
  builderParams: Set<string> = new Set();
  builderParamData: Set<string> = new Set();
  propData: Set<string> = new Set();
  regularInit: Set<string> = new Set();
  stateInit: Set<string> = new Set();
  provideInit: Set<string> = new Set();
  privateCollection: Set<string> = new Set();
}

export let componentCollection: ComponentCollection = new ComponentCollection();

export const observedClassCollection: Set<string> = new Set();
export const enumCollection: Set<string> = new Set();
export const classMethodCollection: Map<string, Map<string, Set<string>>> = new Map();
export const dollarCollection: Set<string> = new Set();

export const propertyCollection: Map<string, Set<string>> = new Map();
export const stateCollection: Map<string, Set<string>> = new Map();
export const linkCollection: Map<string, Set<string>> = new Map();
export const propCollection: Map<string, Set<string>> = new Map();
export const regularCollection: Map<string, Set<string>> = new Map();
export const storagePropCollection: Map<string, Set<string>> = new Map();
export const storageLinkCollection: Map<string, Set<string>> = new Map();
export const provideCollection: Map<string, Set<string>> = new Map();
export const consumeCollection: Map<string, Set<string>> = new Map();
export const objectLinkCollection: Map<string, Set<string>> = new Map();
export const builderParamObjectCollection: Map<string, Set<string>> = new Map();
export const localStorageLinkCollection: Map<string, Map<string, Set<string>>> = new Map();
export const localStoragePropCollection: Map<string, Map<string, Set<string>>> = new Map();
export const builderParamInitialization: Map<string, Set<string>> = new Map();
export const propInitialization: Map<string, Set<string>> = new Map();
export const regularInitialization: Map<string, Set<string>> = new Map();
export const stateInitialization: Map<string, Set<string>> = new Map();
export const provideInitialization: Map<string, Set<string>> = new Map();
export const privateCollection: Map<string, Set<string>> = new Map();

export const isStaticViewCollection: Map<string, boolean> = new Map();

export const useOSFiles: Set<string> = new Set();
export const sourcemapNamesCollection: Map<string, Map<string, string>> = new Map();
export const originalImportNamesMap: Map<string, string> = new Map();

export function validateUISyntax(source: string, content: string, filePath: string,
  fileQuery: string, sourceFile: ts.SourceFile = null): LogInfo[] {
  let log: LogInfo[] = [];
  if (process.env.compileMode === 'moduleJson' ||
    path.resolve(filePath) !== path.resolve(projectConfig.projectPath || '', 'app.ets')) {
    componentCollection = new ComponentCollection();
    const res: LogInfo[] = checkComponentDecorator(source, filePath, fileQuery, sourceFile);
    if (res) {
      log = log.concat(res);
    }
    const allComponentNames: Set<string> =
      new Set([...INNER_COMPONENT_NAMES, ...componentCollection.customComponents]);
    checkUISyntax(filePath, allComponentNames, content, log, sourceFile, fileQuery);
    componentCollection.customComponents.forEach(item => componentInfo.componentNames.add(item));
  }

  if (projectConfig.compileMode === ESMODULE) {
    collectSharedModule(source, filePath, sourceFile);
  }

  return log;
}

function checkComponentDecorator(source: string, filePath: string,
  fileQuery: string, sourceFile: ts.SourceFile | null): LogInfo[] | null {
  const log: LogInfo[] = [];
  if (!sourceFile) {
    sourceFile = ts.createSourceFile(filePath, source, ts.ScriptTarget.Latest, true, ts.ScriptKind.ETS);
  }
  if (sourceFile && sourceFile.statements && sourceFile.statements.length) {
    const result: DecoratorResult = {
      entryCount: 0,
      previewCount: 0
    };
    sourceFile.statements.forEach((item, index, arr) => {
      if (isObservedClass(item)) {
        // @ts-ignore
        observedClassCollection.add(item.name.getText());
      }
      if (ts.isEnumDeclaration(item) && item.name) {
        enumCollection.add(item.name.getText());
      }
      if (ts.isStructDeclaration(item)) {
        validateStructSpec(item, result, log, sourceFile);
      }
      if (ts.isMissingDeclaration(item)) {
        const decorators = ts.getAllDecorators(item);
        for (let i = 0; i < decorators.length; i++) {
          if (decorators[i] && /struct/.test(decorators[i].getText())) {
            const message: string = `Please use a valid decorator.`;
            addLog(LogType.ERROR, message, item.getStart(), log, sourceFile);
            break;
          }
        }
      }
    });
    if (process.env.compileTool === 'rollup') {
      if (result.entryCount > 0) {
        storedFileInfo.wholeFileInfo[filePath].hasEntry = true;
      } else {
        storedFileInfo.wholeFileInfo[filePath].hasEntry = false;
      }
    }
    validateEntryAndPreviewCount(result, fileQuery, sourceFile.fileName, projectConfig.isPreview,
      !!projectConfig.checkEntry, log);
  }

  return log.length ? log : null;
}

function validateStructSpec(item: ts.StructDeclaration, result: DecoratorResult, log: LogInfo[],
  sourceFile: ts.SourceFile | null): void {
  if (item.name && ts.isIdentifier(item.name)) {
    const componentName: string = item.name.getText();
    componentCollection.customComponents.add(componentName);
    const decorators: readonly ts.Decorator[] = ts.getAllDecorators(item);
    if (decorators && decorators.length) {
      checkDecorators(decorators, result, item.name, log, sourceFile, item);
    } else {
      const message: string = `Decorator '@Component', '@ComponentV2', or '@CustomDialog' is missing for struct '${componentName}'.`;
      addLog(LogType.ERROR, message, item.getStart(), log, sourceFile);
    }
  } else {
    const message: string = `A struct must have a name.`;
    addLog(LogType.ERROR, message, item.getStart(), log, sourceFile);
  }
}

function validateEntryAndPreviewCount(result: DecoratorResult, fileQuery: string,
  fileName: string, isPreview: boolean, checkEntry: boolean, log: LogInfo[]): void {
  if (result.previewCount > 10 && (fileQuery === '?entry' || process.env.watchMode === 'true')) {
    log.push({
      type: LogType.ERROR,
      message: `A page can contain at most 10 '@Preview' decorators.`,
      fileName: fileName
    });
  }
  if (result.entryCount > 1 && fileQuery === '?entry') {
    log.push({
      type: LogType.ERROR,
      message: `A page can't contain more than one '@Entry' decorator`,
      fileName: fileName
    });
  }
  if (isPreview && !checkEntry && result.previewCount < 1 && result.entryCount !== 1 &&
    fileQuery === '?entry') {
    log.push({
      type: LogType.ERROR,
      message: `A page which is being previewed must have one and only one '@Entry' ` +
        `decorator, or at least one '@Preview' decorator.`,
      fileName: fileName
    });
  } else if ((!isPreview || isPreview && checkEntry) && result.entryCount !== 1 && fileQuery === '?entry' &&
    !abilityPagesFullPath.has(path.resolve(fileName).toLowerCase())) {
    log.push({
      type: LogType.ERROR,
      message: `A page configured in '${projectConfig.pagesJsonFileName} or build-profile.json5' must have one and only one '@Entry' decorator.` +
        `Solutions:>Please make sure that the splash page has one and only one '@Entry' decorator.`,
      fileName: fileName
    });
  }
}

export function isObservedClass(node: ts.Node): boolean {
  if (ts.isClassDeclaration(node) && hasDecorator(node, COMPONENT_OBSERVED_DECORATOR)) {
    return true;
  }
  return false;
}

export function isCustomDialogClass(node: ts.Node): boolean {
  if (ts.isStructDeclaration(node) && hasDecorator(node, COMPONENT_DECORATOR_CUSTOM_DIALOG)) {
    return true;
  }
  return false;
}

interface DecoratorResult {
  entryCount: number;
  previewCount: number;
}

function checkDecorators(decorators: readonly ts.Decorator[], result: DecoratorResult,
  component: ts.Identifier, log: LogInfo[], sourceFile: ts.SourceFile, node: ts.StructDeclaration): void {
  const componentName: string = component.getText();
  const structInfo: StructInfo = processStructComponentV2.getOrCreateStructInfo(componentName);
  let hasInnerComponentDecorator: boolean = false;
  decorators.forEach((element) => {
    let name: string = element.getText().replace(/\([^\(\)]*\)/, '').trim();
    if (element.expression && element.expression.expression && ts.isIdentifier(element.expression.expression)) {
      name = '@' + element.expression.expression.getText();
    }
    if (INNER_COMPONENT_DECORATORS.has(name)) {
      hasInnerComponentDecorator = true;
      switch (name) {
        case COMPONENT_DECORATOR_ENTRY:
          checkEntryComponent(node, log, sourceFile);
          result.entryCount++;
          componentCollection.entryComponent = componentName;
          componentCollection.entryComponentPos = node.getStart();
          collectLocalStorageName(element);
          break;
        case COMPONENT_DECORATOR_PREVIEW:
          result.previewCount++;
          componentCollection.previewComponent.push(componentName);
          break;
        case COMPONENT_DECORATOR_COMPONENT_V2:
          structInfo.isComponentV2 = true;
          break;
        case COMPONENT_DECORATOR_COMPONENT:
          structInfo.isComponentV1 = true;
          break;
        case COMPONENT_DECORATOR_CUSTOM_DIALOG:
          componentCollection.customDialogs.add(componentName);
          structInfo.isCustomDialog = true;
          break;
        case COMPONENT_DECORATOR_REUSEABLE:
          storedFileInfo.getCurrentArkTsFile().recycleComponents.add(componentName);
          structInfo.isReusable = true;
          break;
      }
    } else {
      validateInvalidStructDecorator(element, componentName, log, sourceFile);
    }
  });
  validateStruct(hasInnerComponentDecorator, componentName, component, log, sourceFile, structInfo);
}

function validateInvalidStructDecorator(element: ts.Decorator, componentName: string, log: LogInfo[],
  sourceFile: ts.SourceFile): void {
  const pos: number = element.expression ? element.expression.pos : element.pos;
  const message: string = `The struct '${componentName}' use invalid decorator.`;
  addLog(LogType.WARN, message, pos, log, sourceFile);
}

function validateStruct(hasInnerComponentDecorator: boolean, componentName: string, component: ts.Identifier,
  log: LogInfo[], sourceFile: ts.SourceFile, structInfo: StructInfo): void {
  if (!hasInnerComponentDecorator) {
    const message: string = `Decorator '@Component', '@ComponentV2', or '@CustomDialog' is missing for struct '${componentName}'.`;
    addLog(LogType.ERROR, message, component.pos, log, sourceFile);
  } else if (structInfo.isComponentV2 && (structInfo.isComponentV1 || structInfo.isReusable || structInfo.isCustomDialog) ) {
    const message: string = `The struct '${componentName}' can not be decorated with '@ComponentV2' ` +
      `and '@Component', '@Reusable', '@CustomDialog' at the same time.`;
    addLog(LogType.ERROR, message, component.pos, log, sourceFile);
  }
  if (BUILDIN_STYLE_NAMES.has(componentName)) {
    const message: string = `The struct '${componentName}' cannot have the same name ` +
      `as the built-in attribute '${componentName}'.`;
    addLog(LogType.ERROR, message, component.pos, log, sourceFile);
  }
  if (INNER_COMPONENT_NAMES.has(componentName)) {
    const message: string = `The struct '${componentName}' cannot have the same name ` +
      `as the built-in component '${componentName}'.`;
    addLog(LogType.ERROR, message, component.pos, log, sourceFile);
  }
}

function checkConcurrentDecorator(node: ts.FunctionDeclaration | ts.MethodDeclaration, log: LogInfo[],
  sourceFile: ts.SourceFile): void {
  const decorators: readonly ts.Decorator[] = ts.getAllDecorators(node);
  if (projectConfig.compileMode === JSBUNDLE) {
    const message: string = `@Concurrent can only be used in ESMODULE compile mode.`;
    addLog(LogType.ERROR, message, decorators![0].pos, log, sourceFile);
  }
  if (ts.isMethodDeclaration(node)) {
    const message: string = `@Concurrent can not be used on method. please use it on function declaration.`;
    addLog(LogType.ERROR, message, decorators![0].pos, log, sourceFile);
  }
  if (node.asteriskToken) {
    let hasAsync: boolean = false;
    const modifiers = ts.canHaveModifiers(node) ? ts.getModifiers(node) : undefined;
    const checkAsyncModifier = (modifier: ts.Modifier) : boolean => modifier.kind === ts.SyntaxKind.AsyncKeyword;
    modifiers && (hasAsync = modifiers.some(checkAsyncModifier));
    const funcKind: string = hasAsync ? 'Async generator' : 'Generator';
    const message: string = `@Concurrent can not be used on ${funcKind} function declaration.`;
    addLog(LogType.ERROR, message, decorators![0].pos, log, sourceFile);
  }
}

function collectLocalStorageName(node: ts.Decorator): void {
  if (node && node.expression && ts.isCallExpression(node.expression)) {
    if (node.expression.arguments && node.expression.arguments.length) {
      node.expression.arguments.forEach((item: ts.Node, index: number) => {
        if (ts.isIdentifier(item) && index === 0) {
          componentCollection.localStorageName = item.getText();
          componentCollection.localStorageNode = item;
        } else if (ts.isObjectLiteralExpression(item) && index === 0) {
          componentCollection.localStorageName = null;
          componentCollection.localStorageNode = item;
        } else {
          componentCollection.localSharedStorage = item;
        }
      });
    }
  } else {
    componentCollection.localStorageName = null;
    componentCollection.localStorageNode = null;
  }
}

function checkUISyntax(filePath: string, allComponentNames: Set<string>, content: string,
  log: LogInfo[], sourceFile: ts.SourceFile | null, fileQuery: string): void {
  if (!sourceFile) {
    sourceFile = ts.createSourceFile(filePath, content, ts.ScriptTarget.Latest, true, ts.ScriptKind.ETS);
  }
  visitAllNode(sourceFile, sourceFile, allComponentNames, log, false, false, false, false, fileQuery, false, false);
}

function visitAllNode(node: ts.Node, sourceFileNode: ts.SourceFile, allComponentNames: Set<string>,
  log: LogInfo[], structContext: boolean, classContext: boolean, isObservedClass: boolean,
  isComponentV2: boolean, fileQuery: string, isObservedV1Class: boolean, isSendableClass: boolean): void {
  if (ts.isStructDeclaration(node) && node.name && ts.isIdentifier(node.name)) {
    structContext = true;
    const structName: string = node.name.escapedText.toString();
    const structInfo: StructInfo = processStructComponentV2.getOrCreateStructInfo(structName);
    if (structInfo.isComponentV2) {
      processStructComponentV2.parseComponentProperty(node, structInfo, log, sourceFileNode);
      isComponentV2 = true;
    } else {
      collectComponentProps(node, structInfo);
    }
  }
  if (ts.isClassDeclaration(node) && node.name && ts.isIdentifier(node.name)) {
    classContext = true;
    [isObservedV1Class, isObservedClass, isSendableClass] = parseClassDecorator(node, sourceFileNode, log);
  }
  if (ts.isMethodDeclaration(node) || ts.isFunctionDeclaration(node)) {
    methodDecoratorCollect(node);
    if (hasDecorator(node, COMPONENT_CONCURRENT_DECORATOR)) {
      // ark compiler's feature
      checkConcurrentDecorator(node, log, sourceFileNode);
    }
    validateFunction(node, sourceFileNode, log);
  }
  checkDecoratorCount(node, sourceFileNode, log);
  checkDecorator(sourceFileNode, node, log, structContext, classContext, isObservedClass, isComponentV2,
    isObservedV1Class, isSendableClass);
  node.getChildren().forEach((item: ts.Node) => visitAllNode(item, sourceFileNode, allComponentNames, log,
    structContext, classContext, isObservedClass, isComponentV2, fileQuery, isObservedV1Class, isSendableClass));
  structContext = false;
  classContext = false;
  isObservedClass = false;
  isObservedV1Class = false;
  isSendableClass = false;
}

const v1ComponentDecorators: string[] = [
  'State', 'Prop', 'Link', 'Provide', 'Consume',
  'StorageLink', 'StorageProp', 'LocalStorageLink', 'LocalStorageProp'
];
const v2ComponentDecorators: string[] = [
  'Local', 'Param', 'Event', 'Provider', 'Consumer'
];
function validatePropertyInStruct(structContext: boolean, decoratorNode: ts.Identifier,
  decoratorName: string, sourceFileNode: ts.SourceFile, log: LogInfo[]): void {
  if (structContext) {
    const isV1Decorator: boolean = v1ComponentDecorators.includes(decoratorName);
    const isV2Decorator: boolean = v2ComponentDecorators.includes(decoratorName);
    if (!isV1Decorator && !isV2Decorator) {
      return;
    }
    const classResult: ClassDecoratorResult = new ClassDecoratorResult();
    const propertyNode: ts.PropertyDeclaration = getPropertyNodeByDecorator(decoratorNode);
    if (propertyNode && propertyNode.type && globalProgram.checker) {
      validatePropertyType(propertyNode.type, classResult);
    }
    let message: string;
    if (isV1Decorator && classResult.hasObservedV2) {
      message = `The type of the @${decoratorName} property can not be a class decorated with @ObservedV2.`;
      addLog(LogType.ERROR, message, decoratorNode.getStart(), log, sourceFileNode);
      return;
    }
    if (isV2Decorator && classResult.hasObserved) {
      message = `The type of the @${decoratorName} property can not be a class decorated with @Observed.`;
      addLog(LogType.ERROR, message, decoratorNode.getStart(), log, sourceFileNode);
      return;
    }
  }
}

function getPropertyNodeByDecorator(decoratorNode: ts.Identifier): ts.PropertyDeclaration {
  if (ts.isDecorator(decoratorNode.parent) && ts.isPropertyDeclaration(decoratorNode.parent.parent)) {
    return decoratorNode.parent.parent;
  }
  if (ts.isCallExpression(decoratorNode.parent) && ts.isDecorator(decoratorNode.parent.parent) &&
    ts.isPropertyDeclaration(decoratorNode.parent.parent.parent)) {
    return decoratorNode.parent.parent.parent;
  }
  return undefined;
}

function validatePropertyType(node: ts.TypeNode, classResult: ClassDecoratorResult): void {
  if (ts.isUnionTypeNode(node) && node.types && node.types.length) {
    node.types.forEach((item: ts.TypeNode) => {
      validatePropertyType(item, classResult);
    });
  }
  if (ts.isTypeReferenceNode(node) && node.typeName) {
    const typeNode: ts.Type = globalProgram.checker.getTypeAtLocation(node.typeName);
    parsePropertyType(typeNode, classResult);
  }
}

function parsePropertyType(type: ts.Type, classResult: ClassDecoratorResult): void {
  // @ts-ignore
  if (type && type.types && type.types.length) {
    // @ts-ignore
    type.types.forEach((item: ts.Type) => {
      parsePropertyType(item, classResult);
    });
  }
  if (type && type.symbol && type.symbol.valueDeclaration &&
    ts.isClassDeclaration(type.symbol.valueDeclaration)) {
    const result: ClassDecoratorResult = getClassDecoratorResult(type.symbol.valueDeclaration);
    if (result.hasObserved) {
      classResult.hasObserved = result.hasObserved;
    }
    if (result.hasObservedV2) {
      classResult.hasObservedV2 = result.hasObservedV2;
    }
  }
}

function checkDecoratorCount(node: ts.Node, sourceFileNode: ts.SourceFile, log: LogInfo[]): void {
  if (ts.isPropertyDeclaration(node) || ts.isGetAccessor(node) || ts.isMethodDeclaration(node)) {
    const decorators: readonly ts.Decorator[] = ts.getAllDecorators(node);
    let innerDecoratorCount: number = 0;
    const exludeDecorators: string[] = ['@Require', '@Once'];
    const v1MethodDecorators: string[] = ['@Builder', '@Styles'];
    const v1DecoratorMap: Map<string, number> = new Map<string, number>();
    const v2DecoratorMap: Map<string, number> = new Map<string, number>();
    let checkDecoratorCount: number = 0;
    decorators.forEach((item: ts.Decorator) => {
      const decoratorName: string = item.getText().replace(/\([^\(\)]*\)/, '');
      if (!exludeDecorators.includes(decoratorName) && (constantDefine.DECORATOR_V2.includes(decoratorName) ||
        decoratorName === '@BuilderParam')) {
        const count: number = v2DecoratorMap.get(decoratorName) || 0;
        v2DecoratorMap.set(decoratorName, count + 1);
        return;
      }
      if (v1MethodDecorators.includes(decoratorName)) {
        const count: number = v1DecoratorMap.get(decoratorName) || 0;
        v1DecoratorMap.set(decoratorName, count + 1);
        return;
      }
      if (decoratorName === COMPONENT_LOCAL_BUILDER_DECORATOR && decorators.length > 1) {
        checkDecoratorCount = checkDecoratorCount + 1;
        return;
      }
    });
    const v2DecoratorMapKeys: string[] = Array.from(v2DecoratorMap.keys());
    const v2DecoratorMapValues: number[] = Array.from(v2DecoratorMap.values());
    const v1DecoratorMapKeys: string[] = Array.from(v1DecoratorMap.keys());
    const v1DecoratorMapValues: number[] = Array.from(v1DecoratorMap.values());
    innerDecoratorCount = v2DecoratorMapKeys.length + v1DecoratorMapKeys.length;
    getMessageCollection().checkLocalBuilderDecoratorCount(node, sourceFileNode, checkDecoratorCount, log);
    if (innerDecoratorCount > 1) {
      const message: string = 'The member property or method can not be decorated by multiple built-in decorators.';
      addLog(LogType.ERROR, message, node.getStart(), log, sourceFileNode);
    }
    const v2Duplicate: boolean = v2DecoratorMapValues.length &&
      v2DecoratorMapValues.some((count: number) => count > 1);
    const v1Duplicate: boolean = v1DecoratorMapValues.length &&
      v1DecoratorMapValues.some((count: number) => count > 1);
    const duplicateMessage: string = 'Duplicate decorators for method are not allowed.';
    if (v2Duplicate || v1Duplicate) {
      addLog(v1Duplicate ? LogType.WARN : LogType.ERROR, duplicateMessage, node.getStart(), log, sourceFileNode);
    }
  }
}

function methodDecoratorCollect(node: ts.MethodDeclaration | ts.FunctionDeclaration): void {
  const extendResult: ExtendResult = { decoratorName: '', componentName: '' };
  const builderCondition: builderConditionType = {
    isBuilder: false,
    isLocalBuilder: false
  };
  if (isBuilderOrLocalBuilder(node, builderCondition)) {
    if (builderCondition.isBuilder) {
      CUSTOM_BUILDER_METHOD.add(node.name.getText());
      if (ts.isFunctionDeclaration(node)) {
        GLOBAL_CUSTOM_BUILDER_METHOD.add(node.name.getText());
      } else {
        INNER_CUSTOM_BUILDER_METHOD.add(node.name.getText());
      }
    } else if (builderCondition.isLocalBuilder) {
      INNER_CUSTOM_LOCALBUILDER_METHOD.add(node.name.getText());
    }
  } else if (ts.isFunctionDeclaration(node) && isExtendFunction(node, extendResult)) {
    if (extendResult.decoratorName === CHECK_COMPONENT_EXTEND_DECORATOR) {
      collectExtend(EXTEND_ATTRIBUTE, extendResult.componentName, node.name.getText());
    }
    if (extendResult.decoratorName === CHECK_COMPONENT_ANIMATABLE_EXTEND_DECORATOR) {
      collectExtend(storedFileInfo.getCurrentArkTsFile().animatableExtendAttribute,
        extendResult.componentName, node.name.getText());
    }
  } else if (hasDecorator(node, COMPONENT_STYLES_DECORATOR)) {
    collectStyles(node);
  }
}

function collectStyles(node: ts.FunctionLikeDeclarationBase): void {
  if (ts.isBlock(node.body) && node.body.statements) {
    if (ts.isFunctionDeclaration(node)) {
      GLOBAL_STYLE_FUNCTION.set(node.name.getText(), node.body);
    } else {
      INNER_STYLE_FUNCTION.set(node.name.getText(), node.body);
    }
    STYLES_ATTRIBUTE.add(node.name.getText());
    BUILDIN_STYLE_NAMES.add(node.name.getText());
  }
}

function validateFunction(node: ts.MethodDeclaration | ts.FunctionDeclaration,
  sourceFileNode: ts.SourceFile, log: LogInfo[]): void {
  if (ts.isFunctionDeclaration(node)) {
    const decorators: readonly ts.Decorator[] = ts.getAllDecorators(node);
    const decoratorMap: Map<string, number> = new Map<string, number>();
    decorators.forEach((item: ts.Decorator) => {
      const decoratorName: string = item.getText().replace(/\([^\(\)]*\)/, '')
        .replace(/^@/, '').trim();
      const count: number = decoratorMap.get(decoratorName) || 0;
      decoratorMap.set(decoratorName, count + 1);
    });
    const decoratorValues: number[] = Array.from(decoratorMap.values());
    const hasDuplicate: boolean = decoratorValues.length &&
      decoratorValues.some((count: number) => count > 1);
    if (hasDuplicate) {
      const message: string = 'Duplicate decorators for function are not allowed.';
      addLog(LogType.WARN, message, node.getStart(), log, sourceFileNode);
    }
    const decoratorKeys: string[] = Array.from(decoratorMap.keys());
    if (decoratorKeys.length > 1 || decoratorKeys.includes('LocalBuilder')) {
      const message: string = 'A function can only be decorated by one of the ' +
        `'AnimatableExtend, Builder, Extend, Styles, Concurrent and Sendable'.`;
      addLog(LogType.ERROR, message, node.getStart(), log, sourceFileNode);
    }
  }
}

function checkDecorator(sourceFileNode: ts.SourceFile, node: ts.Node,
  log: LogInfo[], structContext: boolean, classContext: boolean, isObservedClass: boolean,
  isComponentV2: boolean, isObservedV1Class: boolean, isSendableClass: boolean): void {
  if (ts.isIdentifier(node) && (ts.isDecorator(node.parent) ||
    (ts.isCallExpression(node.parent) && ts.isDecorator(node.parent.parent)))) {
    const decoratorName: string = node.escapedText.toString();
    setLocalBuilderInFile(decoratorName);
    validateStructDecorator(sourceFileNode, node, log, structContext, decoratorName, isComponentV2);
    validateMethodDecorator(sourceFileNode, node, log, structContext, decoratorName);
    validateClassDecorator(sourceFileNode, node, log, classContext, decoratorName, isObservedClass,
      isObservedV1Class, isSendableClass);
    validatePropertyInStruct(structContext, node, decoratorName, sourceFileNode, log);
    return;
  }
  if (ts.isDecorator(node)) {
    validateSingleDecorator(node, sourceFileNode, log, isComponentV2);
  }
}

function setLocalBuilderInFile(decoratorName: string): void {
  if (decoratorName === 'LocalBuilder') {
    storedFileInfo.hasLocalBuilderInFile = true;
  }
}

function validateSingleDecorator(node: ts.Decorator, sourceFileNode: ts.SourceFile,
  log: LogInfo[], isComponentV2: boolean): void {
  const decoratorName: string = node.getText().replace(/\([^\(\)]*\)/, '');
  if (decoratorName === constantDefine.COMPUTED_DECORATOR && node.parent && !ts.isGetAccessor(node.parent)) {
    const message: string = `@Computed can only decorate 'GetAccessor'.`;
    addLog(LogType.ERROR, message, node.getStart(), log, sourceFileNode);
    return;
  }
  const partialDecoratorCollection: string[] = [constantDefine.MONITOR_DECORATOR, COMPONENT_LOCAL_BUILDER_DECORATOR];
  if (partialDecoratorCollection.includes(decoratorName) && node.parent &&
    !ts.isMethodDeclaration(node.parent)) {
    const message: string = `'${decoratorName}' can only decorate method.`;
    addLog(LogType.ERROR, message, node.getStart(), log, sourceFileNode);
    return;
  }
  if (isMemberForComponentV2(decoratorName, isComponentV2) && node.parent &&
    !ts.isPropertyDeclaration(node.parent)) {
    const message: string = `'${decoratorName}' can only decorate member property.`;
    addLog(LogType.ERROR, message, node.getStart(), log, sourceFileNode);
    return;
  }
}

function isMemberForComponentV2(decoratorName: string, isComponentV2: boolean): boolean {
  return constantDefine.COMPONENT_MEMBER_DECORATOR_V2.includes(decoratorName) ||
    (isComponentV2 && decoratorName === '@BuilderParam');
}

const classDecorators: string[] = [CLASS_TRACK_DECORATOR, CLASS_MIN_TRACK_DECORATOR, MIN_OBSERVED];
const classMemberDecorators: string[] = [CLASS_TRACK_DECORATOR, CLASS_MIN_TRACK_DECORATOR, TYPE,
  constantDefine.MONITOR, constantDefine.COMPUTED];

function validTypeCallback(node: ts.Identifier): boolean {
  let isSdkPath: boolean = true;
  if (globalProgram.checker && process.env.compileTool === 'rollup') {
    const symbolObj: ts.Symbol = getSymbolIfAliased(node);
    const fileName: string = symbolObj?.valueDeclaration?.getSourceFile()?.fileName;
    isSdkPath = /@ohos.arkui.*/.test(fileName);
  }
  return isSdkPath;
}

function isTypeFromSdkCallback(classContext: boolean, decoratorName: string, isTypeFromSdk: boolean): boolean {
  if (!classContext && decoratorName === TYPE && isTypeFromSdk) {
    return true;
  }
  return false;
}

function validateClassDecorator(sourceFileNode: ts.SourceFile, node: ts.Identifier, log: LogInfo[],
  classContext: boolean, decoratorName: string, isObservedClass: boolean, isObservedV1Class: boolean,
  isSendableClass: boolean): void {
  const isTypeFromSdk: boolean = validTypeCallback(node);
  if (!classContext && (classDecorators.includes(decoratorName) || isTypeFromSdkCallback(classContext, decoratorName, isTypeFromSdk))) {
    const message: string = `The '@${decoratorName}' decorator can only be used in 'class'.`;
    addLog(LogType.ERROR, message, node.pos, log, sourceFileNode);
  } else if (classContext && classMemberDecorators.includes(decoratorName)) {
    validateMemberInClass(isObservedClass, decoratorName, node, log, sourceFileNode, isObservedV1Class, isSendableClass, isTypeFromSdk);
  }
}

function validateMemberInClass(isObservedClass: boolean, decoratorName: string, node: ts.Identifier,
  log: LogInfo[], sourceFileNode: ts.SourceFile, isObservedV1Class: boolean, isSendableClass: boolean, isTypeFromSdk: boolean): void {
  if (decoratorName === CLASS_TRACK_DECORATOR) {
    if (isObservedClass) {
      const message: string = `The '@${decoratorName}' decorator can not be used in a 'class' decorated with ObservedV2.`;
      addLog(LogType.ERROR, message, node.pos, log, sourceFileNode);
    }
    return;
  }
  if (decoratorName === TYPE) {
    if (isTypeFromSdk) {
      validType(sourceFileNode, node, log, decoratorName, isObservedV1Class, isSendableClass);
    }
    return;
  }
  if (!isObservedClass || !isPropertyForTrace(node, decoratorName)) {
    const info: string = decoratorName === CLASS_MIN_TRACK_DECORATOR ? 'variables' : 'method';
    const message: string = `The '@${decoratorName}' can decorate only member ${info} within a 'class' decorated with ObservedV2.`;
    addLog(LogType.ERROR, message, node.pos, log, sourceFileNode);
    return;
  }
}

function validType(sourceFileNode: ts.SourceFile, node: ts.Identifier, log: LogInfo[], decoratorName: string,
  isObservedV1Class: boolean, isSendableClass: boolean): void {
  if (isSendableClass) {
    const message: string = `The '@${decoratorName}' decorator can not be used in a 'class' decorated with Sendable.`;
    addLog(LogType.ERROR, message, node.pos, log, sourceFileNode);
  }
  if (isObservedV1Class) {
    const message: string = `The '@${decoratorName}' decorator can not be used in a 'class' decorated with Observed.`;
    addLog(LogType.ERROR, message, node.pos, log, sourceFileNode);
  }
  if (ts.isDecorator(node.parent?.parent) && !ts.isPropertyDeclaration(node.parent?.parent?.parent)) {
    const message: string = `The '@${decoratorName}' can decorate only member variables in a 'class'.`;
    addLog(LogType.ERROR, message, node.pos, log, sourceFileNode);
  }
}

function isPropertyForTrace(node: ts.Identifier, decoratorName: string): boolean {
  if (decoratorName === CLASS_MIN_TRACK_DECORATOR && ts.isDecorator(node.parent) &&
    !ts.isPropertyDeclaration(node.parent.parent)) {
    return false;
  }
  return true;
}

class ClassDecoratorResult {
  hasObserved: boolean = false;
  hasObservedV2: boolean = false;
  hasSendable: boolean = false;
}

function parseClassDecorator(node: ts.ClassDeclaration, sourceFileNode: ts.SourceFile,
  log: LogInfo[]): [boolean, boolean, boolean] {
  const classResult: ClassDecoratorResult = getClassDecoratorResult(node);
  validateMutilObserved(node, classResult, sourceFileNode, log);
  if (classResult.hasObserved || classResult.hasObservedV2) {
    parseInheritClass(node, classResult, sourceFileNode, log);
  }
  return [classResult.hasObserved, classResult.hasObservedV2, classResult.hasSendable];
}

function getClassDecoratorResult(node: ts.ClassDeclaration): ClassDecoratorResult {
  const classResult: ClassDecoratorResult = new ClassDecoratorResult();
  const decorators: readonly ts.Decorator[] = ts.getAllDecorators(node);
  decorators.forEach((item: ts.Decorator) => {
    if (ts.isIdentifier(item.expression)) {
      const decoratorName: string = item.expression.escapedText.toString();
      switch (decoratorName) {
        case MIN_OBSERVED:
          classResult.hasObservedV2 = true;
          break;
        case OBSERVED:
          classResult.hasObserved = true;
          break;
        case SENDABLE:
          classResult.hasSendable = true;
      }
    }
  });
  return classResult;
}

function validateMutilObserved(node: ts.ClassDeclaration, classResult: ClassDecoratorResult,
  sourceFileNode: ts.SourceFile, log: LogInfo[]): void {
  if (classResult.hasObserved && classResult.hasObservedV2) {
    const message: string = `A class can not be decorated by '@Observed' and '@ObservedV2' at the same time.`;
    addLog(LogType.ERROR, message, node.getStart(), log, sourceFileNode);
  }
}

function parseInheritClass(node: ts.ClassDeclaration, childClassResult: ClassDecoratorResult,
  sourceFileNode: ts.SourceFile, log: LogInfo[]): void {
  if (globalProgram.checker && process.env.compileTool === 'rollup' && node.heritageClauses) {
    for (const heritageClause of node.heritageClauses) {
      if (heritageClause.token === ts.SyntaxKind.ExtendsKeyword && heritageClause.types &&
        heritageClause.types.length) {
        getClassNode(heritageClause.types[0].expression, childClassResult, node, sourceFileNode, log);
      }
    }
  }
}

function getClassNode(parentType: ts.Node, childClassResult: ClassDecoratorResult,
  childClass: ts.ClassDeclaration, sourceFileNode: ts.SourceFile, log: LogInfo[]): void {
  const symbol: ts.Symbol = parentType && getSymbolIfAliased(parentType);
  if (symbol && symbol.valueDeclaration) {
    if (ts.isClassDeclaration(symbol.valueDeclaration)) {
      validateInheritClassDecorator(symbol.valueDeclaration, childClassResult, childClass, sourceFileNode, log);
      return;
    }
    if (ts.isPropertyAssignment(symbol.valueDeclaration)) {
      getClassNode(symbol.valueDeclaration.initializer, childClassResult, childClass, sourceFileNode, log);
      return;
    }
    if (ts.isShorthandPropertyAssignment(symbol.valueDeclaration)) {
      parseShorthandPropertyForClass(symbol.valueDeclaration, childClassResult, childClass, sourceFileNode, log);
      return;
    }
  }
}

function parseShorthandPropertyForClass(node: ts.ShorthandPropertyAssignment, childClassResult: ClassDecoratorResult,
  childClass: ts.ClassDeclaration, sourceFileNode: ts.SourceFile, log: LogInfo[]): void {
  const shortSymbol: ts.Symbol = globalProgram.checker.getShorthandAssignmentValueSymbol(node);
  if (shortSymbol && shortSymbol.valueDeclaration && ts.isClassDeclaration(shortSymbol.valueDeclaration)) {
    validateInheritClassDecorator(shortSymbol.valueDeclaration, childClassResult, childClass, sourceFileNode, log);
  }
}

function getSymbolIfAliased(node: ts.Node): ts.Symbol {
  const symbol: ts.Symbol = globalProgram.checker.getSymbolAtLocation(node);
  if (symbol && (symbol.getFlags() & ts.SymbolFlags.Alias) !== 0) {
    return globalProgram.checker.getAliasedSymbol(symbol);
  }
  return symbol;
}

function validateInheritClassDecorator(parentNode: ts.ClassDeclaration, childClassResult: ClassDecoratorResult,
  childClass: ts.ClassDeclaration, sourceFileNode: ts.SourceFile, log: LogInfo[]): void {
  const parentClassResult: ClassDecoratorResult = getClassDecoratorResult(parentNode);
  if (childClassResult.hasObservedV2 && parentClassResult.hasObserved) {
    const message: string = `Because the current class is decorated by '@ObservedV2', ` +
      `it can not inherit a class decorated by '@Observed'.`;
    addLog(LogType.ERROR, message, childClass.getStart(), log, sourceFileNode);
    return;
  }
  if (childClassResult.hasObserved && parentClassResult.hasObservedV2) {
    const message: string = `Because the current class is decorated by '@Observed', ` +
      `it can not inherit a class decorated by '@ObservedV2'.`;
    addLog(LogType.ERROR, message, childClass.getStart(), log, sourceFileNode);
    return;
  }
}

function validateStructDecorator(sourceFileNode: ts.SourceFile, node: ts.Identifier, log: LogInfo[],
  structContext: boolean, decoratorName: string, isComponentV2: boolean): void {
  const name: string = `@${decoratorName}`;
  if (structContext) {
    if (isComponentV2) {
      if (constantDefine.COMPONENT_MEMBER_DECORATOR_V1.includes(name)) {
        const message: string = `The '@${decoratorName}' decorator can only be used in a 'struct' decorated with '@Component'.`;
        addLog(LogType.ERROR, message, node.pos, log, sourceFileNode);
      }
    } else if (constantDefine.DECORATOR_V2.includes(name)) {
      const message: string = `The '@${decoratorName}' decorator can only be used in a 'struct' decorated with '@ComponentV2'.`;
      addLog(LogType.ERROR, message, node.pos, log, sourceFileNode);
    }
  } else if (STRUCT_DECORATORS.has(name) || constantDefine.COMPONENT_MEMBER_DECORATOR_V2.includes(name)) {
    const message: string = `The '@${decoratorName}' decorator can only be used with 'struct'.`;
    addLog(LogType.ERROR, message, node.pos, log, sourceFileNode);
  }
}

function validateMethodDecorator(sourceFileNode: ts.SourceFile, node: ts.Identifier, log: LogInfo[],
  structContext: boolean, decoratorName: string): void {
  let message: string;
  if (ts.isMethodDeclaration(node.parent.parent) ||
    (ts.isDecorator(node.parent.parent) && ts.isMethodDeclaration(node.parent.parent.parent))) {
    if (!structContext && STRUCT_CONTEXT_METHOD_DECORATORS.has(`@${decoratorName}`)) {
      message = `The '@${decoratorName}' decorator can only be used in 'struct'.`;
    }
    if (CHECK_EXTEND_DECORATORS.includes(decoratorName)) {
      message = `The '@${decoratorName}' decorator can not be a member property method of a 'class' or 'struct'.`;
    }
    if (message) {
      addLog(LogType.ERROR, message, node.pos, log, sourceFileNode);
    }
  }
}

export function isSendableClassDeclaration(classDeclarationNode: ts.ClassDeclaration): boolean {
  return hasDecorator(classDeclarationNode, COMPONENT_SENDABLE_DECORATOR) ||
      (classDeclarationNode.members && classDeclarationNode.members.some((member: ts.Node) => {
        // Check if the constructor has "use sendable" as the first statement
        // (Sendable classes already transformed by process_ui_syntax.ts)
        if (ts.isConstructorDeclaration(member)) {
          if (!(member as ts.ConstructorDeclaration).body ||
              !(member as ts.ConstructorDeclaration).body.statements) {
            return false;
          }
          const constructorStatements: ts.Statement[] = (member as ts.ConstructorDeclaration).body.statements;
          if (constructorStatements && constructorStatements[0] &&
              ts.isExpressionStatement(constructorStatements[0])) {
            const expression: ts.Node = (constructorStatements[0] as ts.ExpressionStatement).expression;
            return expression && ts.isStringLiteral(expression) &&
                (expression as ts.StringLiteral).text === 'use sendable';
          }
        }
        return false;
      }));
}

export function checkAllNode(
  node: ts.EtsComponentExpression,
  allComponentNames: Set<string>,
  sourceFileNode: ts.SourceFile,
  log: LogInfo[]
): void {
  if (ts.isIdentifier(node.expression)) {
    checkNoChildComponent(node, sourceFileNode, log);
    checkOneChildComponent(node, allComponentNames, sourceFileNode, log);
    checkSpecificChildComponent(node, allComponentNames, sourceFileNode, log);
  }
}

interface ParamType {
  name: string,
  value: string,
}

function checkNoChildComponent(node: ts.EtsComponentExpression, sourceFileNode: ts.SourceFile, log: LogInfo[]): void {
  const isCheckType: ParamType = { name: null, value: null};
  if (hasChild(node, isCheckType)) {
    const componentName: string = (node.expression as ts.Identifier).escapedText.toString();
    const pos: number = node.expression.getStart();
    const message: string = isCheckType.name === null ?
      `The component '${componentName}' can't have any child.` :
      `When the component '${componentName}' set '${isCheckType.name}' is '${isCheckType.value}'` +
        `, can't have any child.`;
    addLog(LogType.ERROR, message, pos, log, sourceFileNode);
  }
}

function hasChild(node: ts.EtsComponentExpression, isCheckType: ParamType): boolean {
  const nodeName: ts.Identifier = node.expression as ts.Identifier;
  if ((AUTOMIC_COMPONENT.has(nodeName.escapedText.toString()) || judgeComponentType(nodeName, node, isCheckType)) &&
    getNextNode(node)) {
    return true;
  }
  return false;
}

function judgeComponentType(nodeName: ts.Identifier, etsComponentExpression: ts.EtsComponentExpression,
  isCheckType: ParamType): boolean {
  return COMPONENT_TOGGLE === nodeName.escapedText.toString() &&
    etsComponentExpression.arguments && etsComponentExpression.arguments[0] &&
    ts.isObjectLiteralExpression(etsComponentExpression.arguments[0]) &&
    etsComponentExpression.arguments[0].getText() &&
    judgeToggleComponentParamType(etsComponentExpression.arguments[0].getText(), isCheckType);
}

function judgeToggleComponentParamType(param: string, isCheckType: ParamType): boolean {
  if (param.indexOf(RESOURCE_NAME_TYPE) > -1) {
    isCheckType.name = RESOURCE_NAME_TYPE;
    const match: string[] = param.match(/\b(Checkbox|Switch|Button)\b/);
    if (match && match.length) {
      isCheckType.value = match[0];
      if (isCheckType.value === COMPONENT_BUTTON) {
        return false;
      }
      return true;
    }
  }
  return false;
}

function getNextNode(node: ts.EtsComponentExpression): ts.Block {
  if (node.body && ts.isBlock(node.body)) {
    const statementsArray: ts.Block = node.body;
    return statementsArray;
  }
  return undefined;
}

function checkOneChildComponent(node: ts.EtsComponentExpression, allComponentNames: Set<string>,
  sourceFileNode: ts.SourceFile, log: LogInfo[]): void {
  const isCheckType: ParamType = { name: null, value: null};
  if (hasNonSingleChild(node, allComponentNames, isCheckType)) {
    const componentName: string = (node.expression as ts.Identifier).escapedText.toString();
    const pos: number = node.expression.getStart();
    const message: string = isCheckType.name === null ?
      `The component '${componentName}' can only have a single child component.` :
      `When the component '${componentName}' set '${isCheckType.name}' is ` +
        `'${isCheckType.value}', can only have a single child component.`;
    addLog(LogType.ERROR, message, pos, log, sourceFileNode);
  }
}

function hasNonSingleChild(node: ts.EtsComponentExpression, allComponentNames: Set<string>,
  isCheckType: ParamType): boolean {
  const nodeName: ts.Identifier = node.expression as ts.Identifier;
  const blockNode: ts.Block = getNextNode(node);
  if (SINGLE_CHILD_COMPONENT.has(nodeName.escapedText.toString()) || !judgeComponentType(nodeName, node, isCheckType) &&
    isCheckType.value === COMPONENT_BUTTON) {
    if (!blockNode) {
      return false;
    }
    if (blockNode && blockNode.statements) {
      const length: number = blockNode.statements.length;
      if (!length) {
        return false;
      }
      if (length > 3) {
        return true;
      }
      const childCount: number = getBlockChildrenCount(blockNode, allComponentNames);
      if (childCount > 1) {
        return true;
      }
    }
  }
  return false;
}

function getBlockChildrenCount(blockNode: ts.Block, allComponentNames: Set<string>): number {
  let maxCount: number = 0;
  const length: number = blockNode.statements.length;
  for (let i = 0; i < length; ++i) {
    const item: ts.Node = blockNode.statements[i];
    if (ts.isExpressionStatement(item) && ts.isCallExpression(item.expression) &&
      isForEachComponent(item.expression)) {
      maxCount += 2;
    }
    if (ts.isIfStatement(item)) {
      maxCount += getIfChildrenCount(item, allComponentNames);
    }
    if (ts.isExpressionStatement(item) && ts.isEtsComponentExpression(item.expression)) {
      maxCount += 1;
    }
    if (ts.isExpressionStatement(item) && ts.isCallExpression(item.expression)) {
      let newNode = item.expression;
      while (newNode.expression) {
        if (ts.isEtsComponentExpression(newNode) || ts.isCallExpression(newNode) &&
          isComponent(newNode, allComponentNames)) {
          maxCount += 1;
        }
        newNode = newNode.expression;
      }
    }
    if (maxCount > 1) {
      break;
    }
  }
  return maxCount;
}

function isComponent(node: ts.EtsComponentExpression | ts.CallExpression, allComponentNames: Set<string>): boolean {
  if (ts.isIdentifier(node.expression) &&
    allComponentNames.has(node.expression.escapedText.toString())) {
    return true;
  }
  return false;
}

function isForEachComponent(node: ts.EtsComponentExpression | ts.CallExpression): boolean {
  if (ts.isIdentifier(node.expression)) {
    const componentName: string = node.expression.escapedText.toString();
    return componentName === COMPONENT_FOREACH || componentName === COMPONENT_LAZYFOREACH;
  }
  return false;
}

function getIfChildrenCount(ifNode: ts.IfStatement, allComponentNames: Set<string>): number {
  const maxCount: number =
    Math.max(getStatementCount(ifNode.thenStatement, allComponentNames),
      getStatementCount(ifNode.elseStatement, allComponentNames));
  return maxCount;
}

function getStatementCount(node: ts.Node, allComponentNames: Set<string>): number {
  let maxCount: number = 0;
  if (!node) {
    return maxCount;
  } else if (ts.isBlock(node)) {
    maxCount = getBlockChildrenCount(node, allComponentNames);
  } else if (ts.isIfStatement(node)) {
    maxCount = getIfChildrenCount(node, allComponentNames);
  } else if (ts.isExpressionStatement(node) && ts.isEtsComponentExpression(node.expression) &&
    isForEachComponent(node.expression)) {
    maxCount = 2;
  } else if (ts.isExpressionStatement(node) && ts.isEtsComponentExpression(node.expression) &&
    !isForEachComponent(node.expression) && isComponent(node.expression, allComponentNames)) {
    maxCount = 1;
  }
  return maxCount;
}

function checkSpecificChildComponent(node: ts.EtsComponentExpression, allComponentNames: Set<string>,
  sourceFileNode: ts.SourceFile, log: LogInfo[]): void {
  if (hasNonspecificChild(node, allComponentNames)) {
    const componentName: string = (node.expression as ts.Identifier).escapedText.toString();
    const pos: number = node.expression.getStart();
    const specificChildArray: string =
      Array.from(SPECIFIC_CHILD_COMPONENT.get(componentName)).join(' and ');
    const message: string =
      `The component '${componentName}' can only have the child component ${specificChildArray}.`;
    addLog(LogType.ERROR, message, pos, log, sourceFileNode);
  }
}

function hasNonspecificChild(node: ts.EtsComponentExpression,
  allComponentNames: Set<string>): boolean {
  const nodeName: ts.Identifier = node.expression as ts.Identifier;
  const nodeNameString: string = nodeName.escapedText.toString();
  const blockNode: ts.Block = getNextNode(node);
  let isNonspecific: boolean = false;
  if (SPECIFIC_CHILD_COMPONENT.has(nodeNameString) && blockNode) {
    const specificChildSet: Set<string> = SPECIFIC_CHILD_COMPONENT.get(nodeNameString);
    isNonspecific = isNonspecificChildBlock(blockNode, specificChildSet, allComponentNames);
    if (isNonspecific) {
      return isNonspecific;
    }
  }
  return isNonspecific;
}

function isNonspecificChildBlock(blockNode: ts.Block, specificChildSet: Set<string>,
  allComponentNames: Set<string>): boolean {
  if (blockNode.statements) {
    const length: number = blockNode.statements.length;
    for (let i = 0; i < length; ++i) {
      const item: ts.Node = blockNode.statements[i];
      if (ts.isIfStatement(item) && isNonspecificChildIf(item, specificChildSet, allComponentNames)) {
        return true;
      }
      if (ts.isExpressionStatement(item) && ts.isCallExpression(item.expression) &&
        isForEachComponent(item.expression) &&
        isNonspecificChildForEach(item.expression, specificChildSet, allComponentNames)) {
        return true;
      }
      if (ts.isBlock(item) && isNonspecificChildBlock(item, specificChildSet, allComponentNames)) {
        return true;
      }
      if (ts.isExpressionStatement(item)) {
        let newNode: any = item.expression;
        while (newNode.expression) {
          if (ts.isEtsComponentExpression(newNode) && ts.isIdentifier(newNode.expression) &&
          !isForEachComponent(newNode) && isComponent(newNode, allComponentNames)) {
            const isNonspecific: boolean =
            isNonspecificChildNonForEach(newNode, specificChildSet);
            if (isNonspecific) {
              return isNonspecific;
            }
            if (i + 1 < length && ts.isBlock(blockNode.statements[i + 1])) {
              ++i;
            }
          }
          newNode = newNode.expression;
        }
      }
    }
  }
  return false;
}

function isNonspecificChildIf(node: ts.IfStatement, specificChildSet: Set<string>,
  allComponentNames: Set<string>): boolean {
  return isNonspecificChildIfStatement(node.thenStatement, specificChildSet, allComponentNames) ||
    isNonspecificChildIfStatement(node.elseStatement, specificChildSet, allComponentNames);
}

function isNonspecificChildForEach(node: ts.EtsComponentExpression, specificChildSet: Set<string>,
  allComponentNames: Set<string>): boolean {
  if (ts.isCallExpression(node) && node.arguments &&
    node.arguments.length > 1 && ts.isArrowFunction(node.arguments[1])) {
    const arrowFunction: ts.ArrowFunction = node.arguments[1] as ts.ArrowFunction;
    const body: ts.Block | ts.EtsComponentExpression | ts.IfStatement =
      arrowFunction.body as ts.Block | ts.EtsComponentExpression | ts.IfStatement;
    if (!body) {
      return false;
    }
    if (ts.isBlock(body) && isNonspecificChildBlock(body, specificChildSet, allComponentNames)) {
      return true;
    }
    if (ts.isIfStatement(body) && isNonspecificChildIf(body, specificChildSet, allComponentNames)) {
      return true;
    }
    if (ts.isCallExpression(body) && isForEachComponent(body) &&
      isNonspecificChildForEach(body, specificChildSet, allComponentNames)) {
      return true;
    }
    if (ts.isEtsComponentExpression(body) && !isForEachComponent(body) &&
      isComponent(body, allComponentNames) &&
      isNonspecificChildNonForEach(body, specificChildSet)) {
      return true;
    }
  }
  return false;
}

function isNonspecificChildNonForEach(node: ts.EtsComponentExpression,
  specificChildSet: Set<string>): boolean {
  if (ts.isIdentifier(node.expression) &&
    !specificChildSet.has(node.expression.escapedText.toString())) {
    return true;
  }
  return false;
}

function isNonspecificChildIfStatement(node: ts.Node, specificChildSet: Set<string>,
  allComponentNames: Set<string>): boolean {
  if (!node) {
    return false;
  }
  if (ts.isBlock(node) && isNonspecificChildBlock(node, specificChildSet, allComponentNames)) {
    return true;
  }
  if (ts.isIfStatement(node) && isNonspecificChildIf(node, specificChildSet, allComponentNames)) {
    return true;
  }
  if (ts.isExpressionStatement(node) && ts.isEtsComponentExpression(node.expression) &&
    isForEachComponent(node.expression) &&
    isNonspecificChildForEach(node.expression, specificChildSet, allComponentNames)) {
    return true;
  }
  if (ts.isExpressionStatement(node) && ts.isEtsComponentExpression(node.expression) &&
    !isForEachComponent(node.expression) && isComponent(node.expression, allComponentNames) &&
    isNonspecificChildNonForEach(node.expression, specificChildSet)) {
    return true;
  }
  return false;
}

function collectComponentProps(node: ts.StructDeclaration, structInfo: StructInfo): void {
  const componentName: string = node.name.getText();
  const componentSet: IComponentSet = getComponentSet(node, true);
  propertyCollection.set(componentName, componentSet.properties);
  stateCollection.set(componentName, componentSet.states);
  linkCollection.set(componentName, componentSet.links);
  storedFileInfo.overallLinkCollection.set(componentName, componentSet.links);
  propCollection.set(componentName, componentSet.props);
  regularCollection.set(componentName, componentSet.regulars);
  storagePropCollection.set(componentName, componentSet.storageProps);
  storageLinkCollection.set(componentName, componentSet.storageLinks);
  provideCollection.set(componentName, componentSet.provides);
  consumeCollection.set(componentName, componentSet.consumes);
  objectLinkCollection.set(componentName, componentSet.objectLinks);
  storedFileInfo.overallObjectLinkCollection.set(componentName, componentSet.objectLinks);
  localStorageLinkCollection.set(componentName, componentSet.localStorageLink);
  localStoragePropCollection.set(componentName, componentSet.localStorageProp);
  builderParamObjectCollection.set(componentName, componentSet.builderParams);
  builderParamInitialization.set(componentName, componentSet.builderParamData);
  propInitialization.set(componentName, componentSet.propData);
  regularInitialization.set(componentName, componentSet.regularInit);
  stateInitialization.set(componentName, componentSet.stateInit);
  provideInitialization.set(componentName, componentSet.provideInit);
  privateCollection.set(componentName, componentSet.privateCollection);
  structInfo.updatePropsDecoratorsV1.push(
    ...componentSet.states, ...componentSet.props,
    ...componentSet.provides, ...componentSet.objectLinks
  );
  structInfo.linkDecoratorsV1.push(...componentSet.links);
}

export function getComponentSet(node: ts.StructDeclaration, uiCheck: boolean = false): IComponentSet {
  const componentSet: IComponentSet = new IComponentSet();
  traversalComponentProps(node, componentSet, uiCheck);
  return componentSet;
}

class RecordRequire {
  hasRequire: boolean = false;
  hasProp: boolean = false;
  hasBuilderParam: boolean = false;
  hasRegular: boolean = false;
  hasState: boolean = false;
  hasProvide: boolean = false;
}

function traversalComponentProps(node: ts.StructDeclaration, componentSet: IComponentSet,
  uiCheck: boolean = false): void {
  let isStatic: boolean = true;
  if (node.members) {
    const currentMethodCollection: Set<string> = new Set();
    node.members.forEach(item => {
      if (ts.isPropertyDeclaration(item) && ts.isIdentifier(item.name)) {
        const propertyName: string = item.name.getText();
        componentSet.properties.add(propertyName);
        const decorators: readonly ts.Decorator[] = ts.getAllDecorators(item);
        const accessQualifierResult: AccessQualifierResult = getAccessQualifier(item, uiCheck);
        if (!decorators || !decorators.length) {
          componentSet.regulars.add(propertyName);
          setPrivateCollection(componentSet, accessQualifierResult, propertyName, COMPONENT_NON_DECORATOR);
        } else {
          isStatic = false;
          let hasValidatePrivate: boolean = false;
          const recordRequire: RecordRequire = new RecordRequire();
          for (let i = 0; i < decorators.length; i++) {
            const decoratorName: string = decorators[i].getText().replace(/\(.*\)$/, '').trim();
            if (INNER_COMPONENT_MEMBER_DECORATORS.has(decoratorName)) {
              dollarCollection.add('$' + propertyName);
              collectionStates(decorators[i], decoratorName, propertyName,
                componentSet, recordRequire);
              setPrivateCollection(componentSet, accessQualifierResult, propertyName, decoratorName);
              validateAccessQualifier(item, propertyName, decoratorName, accessQualifierResult,
                recordRequire, uiCheck, hasValidatePrivate);
              hasValidatePrivate = true;
            }
          }
          regularAndRequire(decorators, componentSet, recordRequire, propertyName, accessQualifierResult);
          checkRequire(propertyName, componentSet, recordRequire);
        }
      }
      if (ts.isMethodDeclaration(item) && item.name && ts.isIdentifier(item.name)) {
        validateStateVariable(item);
        currentMethodCollection.add(item.name.getText());
      }
    });
    collectCurrentClassMethod(node, currentMethodCollection);
  }
  isStaticViewCollection.set(node.name.getText(), isStatic);
}

function collectCurrentClassMethod(node: ts.StructDeclaration, currentMethodCollection: Set<string>): void {
  const componentMethodCollection: Map<string, Set<string>> = new Map();
  componentMethodCollection.set(node.name.getText(), currentMethodCollection);
  const sourceFile: ts.SourceFile = node.getSourceFile();
  const filePath: string = sourceFile ? sourceFile.fileName : undefined;
  if (filePath) {
    const pageMethodCollection: Map<string, Set<string>> = classMethodCollection.get(filePath);
    if (!pageMethodCollection) {
      classMethodCollection.set(filePath, componentMethodCollection);
    } else if (!pageMethodCollection.get(node.name.getText())) {
      pageMethodCollection.set(node.name.getText(), currentMethodCollection);
    }
  }
}

const FORBIDDEN_PUBLIC_ACCESS: string[] = [COMPONENT_STORAGE_PROP_DECORATOR,
  COMPONENT_STORAGE_LINK_DECORATOR, COMPONENT_LOCAL_STORAGE_LINK_DECORATOR,
  COMPONENT_LOCAL_STORAGE_PROP_DECORATOR, COMPONENT_CONSUME_DECORATOR
];
const FORBIDDEN_PRIVATE_ACCESS: string[] = [COMPONENT_LINK_DECORATOR, COMPONENT_OBJECT_LINK_DECORATOR];

function validateAccessQualifier(node: ts.PropertyDeclaration, propertyName: string,
  decoratorName: string, accessQualifierResult: AccessQualifierResult,
  recordRequire: RecordRequire, uiCheck: boolean = false, hasValidatePrivate: boolean): void {
  if (uiCheck) {
    if (accessQualifierResult.hasPublic && FORBIDDEN_PUBLIC_ACCESS.includes(decoratorName)) {
      transformLog.errors.push({
        type: LogType.WARN,
        message: `Property '${propertyName}' can not be decorated with both ${decoratorName} and public.`,
        pos: node.getStart()
      });
    }
    if (accessQualifierResult.hasPrivate) {
      if (FORBIDDEN_PRIVATE_ACCESS.includes(decoratorName)) {
        transformLog.errors.push({
          type: LogType.WARN,
          message: `Property '${propertyName}' can not be decorated with both ${decoratorName} and private.`,
          pos: node.getStart()
        });
      }
      if (recordRequire.hasRequire && !hasValidatePrivate) {
        transformLog.errors.push({
          type: LogType.WARN,
          message: `Property '${propertyName}' can not be decorated with both @Require and private.`,
          pos: node.getStart()
        });
      }
    }
  }
}

const SUPPORT_PRIVATE_PROPS: string[] = [COMPONENT_NON_DECORATOR, COMPONENT_STATE_DECORATOR,
  COMPONENT_PROP_DECORATOR, COMPONENT_PROVIDE_DECORATOR, COMPONENT_BUILDERPARAM_DECORATOR
];

function setPrivateCollection(componentSet: IComponentSet, accessQualifierResult: AccessQualifierResult,
  propertyName: string, decoratorName: string): void {
  if (accessQualifierResult.hasPrivate && SUPPORT_PRIVATE_PROPS.includes(decoratorName)) {
    componentSet.privateCollection.add(propertyName);
  }
}

class AccessQualifierResult {
  hasPrivate: boolean = false;
  hasPublic: boolean = false;
}

function getAccessQualifier(node: ts.PropertyDeclaration, uiCheck: boolean = false): AccessQualifierResult {
  const modifiers: readonly ts.Modifier[] = ts.getModifiers(node);
  const accessQualifierResult: AccessQualifierResult = new AccessQualifierResult();
  if (modifiers && modifiers.length) {
    modifiers.forEach((item) => {
      if (item.kind === ts.SyntaxKind.PrivateKeyword) {
        accessQualifierResult.hasPrivate = true;
      }
      if (item.kind === ts.SyntaxKind.PublicKeyword) {
        accessQualifierResult.hasPublic = true;
      }
      if (uiCheck && item.kind === ts.SyntaxKind.ProtectedKeyword) {
        transformLog.errors.push({
          type: LogType.WARN,
          message: `The member attributes of a struct can not be protected.`,
          pos: node.getStart()
        });
      }
    });
  }
  return accessQualifierResult;
}

function regularAndRequire(decorators: readonly ts.Decorator[], componentSet: IComponentSet,
  recordRequire: RecordRequire, propertyName: string, accessQualifierResult: AccessQualifierResult): void {
  if (decorators && decorators.length === 1 && decorators[0].getText() === COMPONENT_REQUIRE_DECORATOR) {
    componentSet.regulars.add(propertyName);
    recordRequire.hasRegular = true;
    setPrivateCollection(componentSet, accessQualifierResult, propertyName, COMPONENT_NON_DECORATOR);
  }
}

function checkRequire(name: string, componentSet: IComponentSet, recordRequire: RecordRequire): void {
  if (recordRequire.hasRequire) {
    setInitValue('hasProp', 'propData', name, componentSet, recordRequire);
    setInitValue('hasBuilderParam', 'builderParamData', name, componentSet, recordRequire);
    setInitValue('hasRegular', 'regularInit', name, componentSet, recordRequire);
    setInitValue('hasState', 'stateInit', name, componentSet, recordRequire);
    setInitValue('hasProvide', 'provideInit', name, componentSet, recordRequire);
  }
}

function setInitValue(requirekey: string, initKey: string, name: string, componentSet: IComponentSet,
  recordRequire: RecordRequire): void {
  if (recordRequire[requirekey]) {
    componentSet[initKey].add(name);
  }
}

function collectionStates(node: ts.Decorator, decorator: string, name: string,
  componentSet: IComponentSet, recordRequire: RecordRequire): void {
  switch (decorator) {
    case COMPONENT_STATE_DECORATOR:
      componentSet.states.add(name);
      recordRequire.hasState = true;
      break;
    case COMPONENT_LINK_DECORATOR:
      componentSet.links.add(name);
      break;
    case COMPONENT_PROP_DECORATOR:
      recordRequire.hasProp = true;
      componentSet.props.add(name);
      break;
    case COMPONENT_STORAGE_PROP_DECORATOR:
      componentSet.storageProps.add(name);
      break;
    case COMPONENT_STORAGE_LINK_DECORATOR:
      componentSet.storageLinks.add(name);
      break;
    case COMPONENT_PROVIDE_DECORATOR:
      recordRequire.hasProvide = true;
      componentSet.provides.add(name);
      break;
    case COMPONENT_CONSUME_DECORATOR:
      componentSet.consumes.add(name);
      break;
    case COMPONENT_OBJECT_LINK_DECORATOR:
      componentSet.objectLinks.add(name);
      break;
    case COMPONENT_BUILDERPARAM_DECORATOR:
      recordRequire.hasBuilderParam = true;
      componentSet.builderParams.add(name);
      break;
    case COMPONENT_LOCAL_STORAGE_LINK_DECORATOR :
      collectionlocalStorageParam(node, name, componentSet.localStorageLink);
      break;
    case COMPONENT_LOCAL_STORAGE_PROP_DECORATOR:
      collectionlocalStorageParam(node, name, componentSet.localStorageProp);
      break;
    case COMPONENT_REQUIRE_DECORATOR:
      recordRequire.hasRequire = true;
      break;
  }
}

function collectionlocalStorageParam(node: ts.Decorator, name: string,
  localStorage: Map<string, Set<string>>): void {
  const localStorageParam: Set<string> = new Set();
  if (node && ts.isCallExpression(node.expression) && node.expression.arguments &&
    node.expression.arguments.length) {
    localStorage.set(name, localStorageParam.add(
      node.expression.arguments[0].getText()));
  }
}

export interface ReplaceResult {
  content: string,
  log: LogInfo[]
}

export function sourceReplace(source: string, sourcePath: string): ReplaceResult {
  let content: string = source;
  const log: LogInfo[] = [];
  content = preprocessExtend(content);
  content = preprocessNewExtend(content);
  // process @system.
  content = processSystemApi(content, false, sourcePath);
  collectImportNames(content, sourcePath);

  return {
    content: content,
    log: log
  };
}

export function preprocessExtend(content: string, extendCollection?: Set<string>): string {
  const REG_EXTEND: RegExp = /@Extend(\s+)([^\.\s]+)\.([^\(]+)\(/gm;
  return content.replace(REG_EXTEND, (item, item1, item2, item3) => {
    collectExtend(EXTEND_ATTRIBUTE, item2, '__' + item2 + '__' + item3);
    collectExtend(EXTEND_ATTRIBUTE, item2, item3);
    if (extendCollection) {
      extendCollection.add(item3);
    }
    return `@Extend(${item2})${item1}function __${item2}__${item3}(`;
  });
}

export function preprocessNewExtend(content: string, extendCollection?: Set<string>): string {
  const REG_EXTEND: RegExp = /@Extend\s*\([^\)]+\)\s*function\s+([^\(\s]+)\s*\(/gm;
  return content.replace(REG_EXTEND, (item, item1) => {
    if (extendCollection) {
      extendCollection.add(item1);
    }
    return item;
  });
}

function replaceSystemApi(item: string, systemValue: string, moduleType: string, systemKey: string): string {
  // if change format, please update regexp in transformModuleSpecifier
  if (NATIVE_MODULE.has(`${moduleType}.${systemKey}`)) {
    item = `var ${systemValue} = globalThis.requireNativeModule('${moduleType}.${systemKey}')`;
  } else if (moduleType === SYSTEM_PLUGIN || moduleType === OHOS_PLUGIN) {
    item = `var ${systemValue} = globalThis.requireNapi('${systemKey}')`;
  }
  return item;
}

function replaceLibSo(importValue: string, libSoKey: string, sourcePath: string = null): string {
  if (sourcePath) {
    useOSFiles.add(sourcePath);
  }
  // if change format, please update regexp in transformModuleSpecifier
  return projectConfig.bundleName && projectConfig.moduleName ?
    `var ${importValue} = globalThis.requireNapi("${libSoKey}", true, "${projectConfig.bundleName}/${projectConfig.moduleName}");` :
    `var ${importValue} = globalThis.requireNapi("${libSoKey}", true);`;
}

export function processSystemApi(content: string, isProcessAllowList: boolean = false,
  sourcePath: string = null, isSystemModule: boolean = false): string {
  if (isProcessAllowList && projectConfig.compileMode === ESMODULE) {
    // remove the unused system api import decl like following when compile as [esmodule]
    // in the result_process phase
    // e.g. import "@ohos.application.xxx"
    const REG_UNUSED_SYSTEM_IMPORT: RegExp = /import(?:\s*)['"]@(system|ohos)\.(\S+)['"]/g;
    content = content.replace(REG_UNUSED_SYSTEM_IMPORT, '');
  }

  const REG_IMPORT_DECL: RegExp = isProcessAllowList ? projectConfig.compileMode === ESMODULE ?
    /import\s+(.+)\s+from\s+['"]@(system|ohos)\.(\S+)['"]/g :
    /(import|const)\s+(.+)\s*=\s*(\_\_importDefault\()?require\(\s*['"]@(system|ohos)\.(\S+)['"]\s*\)(\))?/g :
    /(import|export)\s+(?:(.+)|\{([\s\S]+)\})\s+from\s+['"](\S+)['"]|import\s+(.+)\s*=\s*require\(\s*['"](\S+)['"]\s*\)/g;

  const systemValueCollection: Set<string> = new Set();
  const processedContent: string = content.replace(REG_IMPORT_DECL, (item, item1, item2, item3, item4, item5, item6) => {
    const importValue: string = isProcessAllowList ? projectConfig.compileMode === ESMODULE ? item1 : item2 : item2 || item5;

    if (isProcessAllowList) {
      systemValueCollection.add(importValue);
      if (projectConfig.compileMode !== ESMODULE) {
        collectSourcemapNames(sourcePath, importValue, item5);
        return replaceSystemApi(item, importValue, item4, item5);
      }
      collectSourcemapNames(sourcePath, importValue, item3);
      return replaceSystemApi(item, importValue, item2, item3);
    }

    const moduleRequest: string = item4 || item6;
    if (/^@(system|ohos)\./.test(moduleRequest)) { // ohos/system.api
      // ets & ts file need compile with .d.ts, so do not replace at the phase of pre_process
      if (!isSystemModule) {
        return item;
      }
      const result: RegExpMatchArray = moduleRequest.match(/^@(system|ohos)\.(\S+)$/);
      const moduleType: string = result[1];
      const apiName: string = result[2];
      return replaceSystemApi(item, importValue, moduleType, apiName);
    } else if (/^lib(\S+)\.so$/.test(moduleRequest)) { // libxxx.so
      const result: RegExpMatchArray = moduleRequest.match(/^lib(\S+)\.so$/);
      const libSoKey: string = result[1];
      return replaceLibSo(importValue, libSoKey, sourcePath);
    }
    return item;
  });
  return processInnerModule(processedContent, systemValueCollection);
}

function collectSourcemapNames(sourcePath: string, changedName: string, originalName: string): void {
  if (sourcePath == null) {
    return;
  }
  const cleanSourcePath: string = sourcePath.replace('.ets', '.js').replace('.ts', '.js');
  if (!sourcemapNamesCollection.has(cleanSourcePath)) {
    return;
  }

  const map: Map<string, string> = sourcemapNamesCollection.get(cleanSourcePath);
  if (map.has(changedName)) {
    return;
  }

  for (const entry of originalImportNamesMap.entries()) {
    const key: string = entry[0];
    const value: string = entry[1];
    if (value === '@ohos.' + originalName || value === '@system.' + originalName) {
      map.set(changedName.trim(), key);
      sourcemapNamesCollection.set(cleanSourcePath, map);
      originalImportNamesMap.delete(key);
      break;
    }
  }
}

export function collectImportNames(content: string, sourcePath: string = null): void {
  const REG_IMPORT_DECL: RegExp =
    /(import|export)\s+(.+)\s+from\s+['"](\S+)['"]|import\s+(.+)\s*=\s*require\(\s*['"](\S+)['"]\s*\)/g;

  const decls: string[] = content.match(REG_IMPORT_DECL);
  if (decls !== null) {
    decls.forEach(decl => {
      const parts: string[] = decl.split(' ');
      if (parts.length === 4 && parts[0] === 'import' && parts[2] === 'from' && !parts[3].includes('.so')) {
        originalImportNamesMap.set(parts[1], parts[3].replace(/'/g, ''));
      }
    });
  }

  if (sourcePath && sourcePath !== null) {
    const cleanSourcePath: string = sourcePath.replace('.ets', '.js').replace('.ts', '.js');
    if (!sourcemapNamesCollection.has(cleanSourcePath)) {
      sourcemapNamesCollection.set(cleanSourcePath, new Map());
    }
  }
}

function processInnerModule(content: string, systemValueCollection: Set<string>): string {
  systemValueCollection.forEach(element => {
    const target: string = element.trim() + '.default';
    while (content.includes(target)) {
      content = content.replace(target, element.trim());
    }
  });
  return content;
}

export function resetComponentCollection(): void {
  componentCollection.entryComponent = null;
  componentCollection.entryComponentPos = null;
  componentCollection.previewComponent = [];
  stateObjectCollection.clear();
  builderParamInitialization.clear();
  propInitialization.clear();
  propCollection.clear();
  objectLinkCollection.clear();
  linkCollection.clear();
  storedFileInfo.overallLinkCollection.clear();
  storedFileInfo.overallObjectLinkCollection.clear();
  storedFileInfo.overallBuilderParamCollection.clear();
  regularInitialization.clear();
  stateInitialization.clear();
  provideInitialization.clear();
  privateCollection.clear();
}

function checkEntryComponent(node: ts.StructDeclaration, log: LogInfo[], sourceFile: ts.SourceFile): void {
  const modifiers = ts.canHaveModifiers(node) ? ts.getModifiers(node) : undefined;
  if (modifiers) {
    for (let i = 0; i < modifiers.length; i++) {
      if (modifiers[i].kind === ts.SyntaxKind.ExportKeyword) {
        const message: string = `It's not a recommended way to export struct with @Entry decorator, ` +
          `which may cause ACE Engine error in component preview mode.`;
        addLog(LogType.WARN, message, node.getStart(), log, sourceFile);
        break;
      }
    }
  }
}

function validateStateVariable(node: ts.MethodDeclaration): void {
  const decorators: readonly ts.Decorator[] = ts.getAllDecorators(node);
  if (decorators && decorators.length) {
    for (let i = 0; i < decorators.length; i++) {
      const decoratorName: string = decorators[i].getText().replace(/\(.*\)$/, '').trim();
      if (CARD_ENABLE_DECORATORS[decoratorName]) {
        validatorCard(transformLog.errors, CARD_LOG_TYPE_DECORATORS,
          decorators[i].getStart(), decoratorName);
      }
      if (INNER_COMPONENT_MEMBER_DECORATORS.has(decoratorName)) {
        transformLog.errors.push({
          type: LogType.ERROR,
          message: `'${decorators[i].getText()}' can not decorate the method.`,
          pos: decorators[i].getStart()
        });
      }
    }
  }
}

export function getObservedPropertyCollection(className: string): Set<string> {
  const observedProperthCollection: Set<string> = new Set([
    ...stateCollection.get(className),
    ...linkCollection.get(className),
    ...propCollection.get(className),
    ...storageLinkCollection.get(className),
    ...storageLinkCollection.get(className),
    ...provideCollection.get(className),
    ...consumeCollection.get(className),
    ...objectLinkCollection.get(className)
  ]);
  getLocalStorageCollection(className, observedProperthCollection);
  return observedProperthCollection;
}

export function getLocalStorageCollection(componentName: string, collection: Set<string>): void {
  if (localStorageLinkCollection.get(componentName)) {
    for (const key of localStorageLinkCollection.get(componentName).keys()) {
      collection.add(key);
    }
  }
  if (localStoragePropCollection.get(componentName)) {
    for (const key of localStoragePropCollection.get(componentName).keys()) {
      collection.add(key);
    }
  }
}

export function resetValidateUiSyntax(): void {
  observedClassCollection.clear();
  enumCollection.clear();
  classMethodCollection.clear();
  dollarCollection.clear();
  stateCollection.clear();
  regularCollection.clear();
  storagePropCollection.clear();
  storageLinkCollection.clear();
  provideCollection.clear();
  consumeCollection.clear();
  builderParamObjectCollection.clear();
  localStorageLinkCollection.clear();
  localStoragePropCollection.clear();
  isStaticViewCollection.clear();
  useOSFiles.clear();
  sourcemapNamesCollection.clear();
  originalImportNamesMap.clear();
}