Function arrowFunction

packages/amis-formula/src/parser.ts:188–219

()

  }

  function arrowFunction(): ASTNodeOrNull {
    let ast: any = argList() || variable();
    let args: Array<any> = [];
    let start: Position;

    if (ast?.type === 'variable') {
      args = [ast];
      start = ast.start;
    } else if (ast?.type === 'arg-list') {
      start = ast.start;
      args = ast.body;
    }

    if (Array.isArray(args) && matchPunctuator('=')) {
      next();
      if (matchPunctuator('>')) {
        next();
        const body = assert(expression());
        return {
          type: 'anonymous_function',
          args: args,
          return: body,
          start: start!,
          end: body.end
        };
      } else {
        back();
      }
    }

    return ast;
  }

  function conditionalExpression(): ASTNodeOrNull {
    const ast = logicalOrExpression();