Function parseJavaScript

src/javascript/parse.ts:44–66

(input: string, options: ParseOptions)

 * the specified inline JavaScript expression.
 */
export function parseJavaScript(input: string, options: ParseOptions): JavaScriptNode {
  const {inline = false, path, params} = options;
  let expression = maybeParseExpression(input); // first attempt to parse as expression
  if (expression?.type === "ClassExpression" && expression.id) expression = null; // treat named class as program
  if (expression?.type === "FunctionExpression" && expression.id) expression = null; // treat named function as program
  if (!expression && inline) throw new SyntaxError("invalid expression"); // inline code must be an expression
  const body = expression ?? parseProgram(input); // otherwise parse as a program
  const exports = findExports(body);
  if (exports.length) throw syntaxError("Unexpected token 'export'", exports[0], input); // disallow exports
  const references = findReferences(body);
  if (params) checkParams(body, input, params);
  checkAssignments(body, references, input);
  return {
    body,
    declarations: expression ? null : findDeclarations(body as Program, input),
    references,
    files: findFiles(body, path, input, ["FileAttachment"]),
    imports: findImports(body, path, input),
    expression: !!expression,
    async: findAwaits(body).length > 0,
    input
  };
}

export function parseProgram(input: string, params?: Params): Program {
  const body = Parser.parse(input, acornOptions);