TsSimpleAst

Example - Navigating Within Source Files

Setup

Given the following file:

// Person.ts

interface Person {
    name: string;
    age: number;
}

export default Person;

And setup:

import Ast from "ts-simple-ast";

const ast = new Ast();
ast.addSourceFiles("**/*.ts");

Use

First you need to get the source file you would like to look at:

const sourceFile = ast.getSourceFile("Person.ts");

Now inspect what’s inside… here’s a few examples:

const hasClasses = sourceFile.getClasses().length > 0;
const interfaces = sourceFile.getInterfaces();

// person interface
const personInterface = sourceFile.getInterface("Person")!;
personInterface.isDefaultExport(); // returns true
personInterface.getName();         // returns "Person"
personInterface.getProperties();   // returns the properties

Next step: Underlying Compiler Nodes