Typescript enum codegen

codegen-enums.ts

import * as ts from 'typescript';

function makeEnum() {
  return ts.createEnumDeclaration(
    undefined,
    [ts.createToken(ts.SyntaxKind.ExportKeyword), ts.createToken(ts.SyntaxKind.DeclareKeyword)],
    'Direction',
    [
      ts.createEnumMember('UNKNOWN', ts.createLiteral(0)),
      ts.createEnumMember('NORTH'),
      ts.createEnumMember('SOUTH'),
      ts.createEnumMember('EAST'),
      ts.createEnumMember('WEST'),
    ],
  );
}

const resultFile = ts.createSourceFile(
  'someFileName.ts',
  '',
  ts.ScriptTarget.Latest,
  /*setParentNodes*/ false,
  ts.ScriptKind.TS,
);
const printer = ts.createPrinter({ newLine: ts.NewLineKind.LineFeed });

const result = printer.printNode(ts.EmitHint.Unspecified, makeEnum(), resultFile);
console.log(result);

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