ts-morphについて学ぶ

// do this
import { ts } from "ts-morph";
// not this
import * as ts from "typescript";

import { Project } from "ts-morph";

// 新しいプロジェクトを作成
const project = new Project();

// ソースファイルを追加
const sourceFile = project.createSourceFile("example.ts", `
    const x = 10;
    function printX() {
        console.log(x);
    }
    printX();
`);

// "x" という変数を取得
const variableDeclaration = sourceFile.getVariableDeclarationOrThrow("x");

// "x" の参照を検索
const references = variableDeclaration.findReferences();

// 参照を表示
references.forEach(ref => {
    const refNodes = ref.getReferences();
    refNodes.forEach(refNode => {
        console.log("Found reference at:", refNode.getSourceFile().getFilePath());
        console.log("Start:", refNode.getTextSpan().getStart(), "Text:", refNode.getNode().getText());
    });
});

// Found reference at: .../example.ts
// Start: 11 Text: x
// Found reference at: .../example.ts
// Start: 63 Text: x

{
  languageService: LanguageService {
    compilerObject: [Getter],
    _reset: [Function: _reset],
    getProgram: [Function: getProgram],
    getDefinitions: [Function: getDefinitions],
    getDefinitionsAtPosition: [Function: getDefinitionsAtPosition],
    getImplementations: [Function: getImplementations],
    getImplementationsAtPosition: [Function: getImplementationsAtPosition],
    findReferences: [Function: findReferences],
    findReferencesAsNodes: [Function: findReferencesAsNodes],
    findReferencesAtPosition: [Function: findReferencesAtPosition],
    findRenameLocations: [Function: findRenameLocations],
    getSuggestionDiagnostics: [Function: getSuggestionDiagnostics],
    getFormattingEditsForRange: [Function: getFormattingEditsForRange],
    getFormattingEditsForDocument: [Function: getFormattingEditsForDocument],
    getFormattedDocumentText: [Function: getFormattedDocumentText],
    getEmitOutput: [Function: getEmitOutput],
    getIdentationAtPosition: [Function: getIdentationAtPosition],
    organizeImports: [Function: organizeImports],
    getEditsForRefactor: [Function: getEditsForRefactor],
    getCombinedCodeFix: [Function: getCombinedCodeFix],
    getCodeFixesAtPosition: [Function: getCodeFixesAtPosition],
  },
}

{
  program: Program {
    compilerObject: [Getter],
    _isCompilerProgramCreated: [Function: _isCompilerProgramCreated],
    _reset: [Function: _reset],
    getTypeChecker: [Function: getTypeChecker],
    emit: [Function: emit],
    emitSync: [Function: emitSync],
    emitToMemory: [Function: emitToMemory],
    getSyntacticDiagnostics: [Function: getSyntacticDiagnostics],
    getSemanticDiagnostics: [Function: getSemanticDiagnostics],
    getDeclarationDiagnostics: [Function: getDeclarationDiagnostics],
    getGlobalDiagnostics: [Function: getGlobalDiagnostics],
    getConfigFileParsingDiagnostics: [Function: getConfigFileParsingDiagnostics],
    getEmitModuleResolutionKind: [Function: getEmitModuleResolutionKind],
    isSourceFileFromExternalLibrary: [Function: isSourceFileFromExternalLibrary],
  },
}

const b = 5;
const x = { a: b };

export { b as a }; // as とか使ってくれる