blob: a239a7523ce6f0b42fa71856c2c83f934846c017 [file] [log] [blame]
// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
// Dart core library.
// VM implementation of double.
patch class double {
static double _nativeParse(String str,
int start, int end) native "Double_parse";
static double _parse(var str) {
int len = str.length;
int start = str._firstNonWhitespace();
if (start == len) return null; // All whitespace.
int end = str._lastNonWhitespace() + 1;
assert(start < end);
return _nativeParse(str, start, end);
/* patch */ static double parse(String str,
[double onError(String str)]) {
var result = _parse(str);
if (result == null) {
if (onError == null) throw new FormatException(str);
return onError(str);
return result;