Function verify

typescript/verify.js:74–98

* Verifies that a TypeScript project compiles. * @param {string} name The name of the project. * @param {string} directory The project directory. * @returns {Promise }

(name, directory)

 * @returns {Promise<void>}
 */
async function verify(name, directory) {
  let compiler = await loadCompiler(directory);
  let label =
    compiler === ts ? name : `${name} (TypeScript ${compiler.version})`;
  let line = `  ${label}...`;
  process.stdout.write(line);

  let diagnostics = await compile(
    compiler,
    path.join(directory, 'tsconfig.json')
  );
  let success = diagnostics.length === 0;
  let report = `\x1b${success ? '[32m✔' : '[31mX'}\x1b[0m`;

  if (process.stdout.isTTY) {
    process.stdout.write(`\x1b[${line.length}D${report} ${label}   \n`);
  } else {
    process.stdout.write(` ${report}\n`);
  }

  if (!success) {
    printDiagnostics(compiler, diagnostics);
    process.exitCode = 1;
  }
}

/**
 * Compiles a TypeScript project.