ASTBuilder.assertNoParent("sub-expression", subExpr);
// TODO: recursively check the given subexpression
ast.addChildWithTokens(subExpr);
LinkedListTree arguments = ASTUtils.newParentheticAST(AS3Parser.ARGUMENTS, AS3Parser.LPAREN, "(", AS3Parser.RPAREN, ")");
ast.addChildWithTokens(arguments);
ASTASInvocationExpression result = new ASTASInvocationExpression(ast);
result.setArguments(args);
return result;
}