Jacob Richman
4360e99d18
This reverts commit b1f7e6d94673b098c93c187fe3efc45c15f27edc. BUG= Committed: https://github.com/dart-lang/sdk/commit/62be0eacfbb36bdc92a05c7c35bb4506621b6a3a Review-Url: https://codereview.chromium.org/2767533002 .
65 lines
1.7 KiB
Dart
65 lines
1.7 KiB
Dart
// Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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import 'dart:core' hide Symbol;
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@patch
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class Symbol {
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@patch
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const Symbol(String name) : this._name = name;
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@patch
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toString() => 'Symbol("${getUnmangledName(this)}")';
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static getUnmangledName(Symbol symbol) {
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String string = Symbol.getName(symbol);
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// Remove closurization hash mark
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// #foo -> foo
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if (string.startsWith('#')) {
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string = string.substring(1);
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}
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// get:foo -> foo
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// set:foo -> foo=
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// get:_foo@xxx -> _foo
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// set:_foo@xxx -> _foo=
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// Class._constructor@xxx -> Class._constructor
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// _Class@xxx._constructor@xxx -> _Class._constructor
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// lib._S@xxx with lib._M1@xxx, lib._M2@xxx -> lib._S with lib._M1, lib._M2
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StringBuffer result = new StringBuffer();
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bool add_setter_suffix = false;
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var pos = 0;
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if (string.length >= 4 && string[3] == ':') {
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// Drop 'get:' or 'set:' prefix.
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pos = 4;
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if (string[0] == 's') {
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add_setter_suffix = true;
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}
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}
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// Skip everything between AT and PERIOD, SPACE, COMMA or END
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bool skip = false;
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for (; pos < string.length; pos++) {
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var char = string[pos];
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if (char == '@') {
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skip = true;
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} else if (char == '.' || char == ' ' || char == ',') {
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skip = false;
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}
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if (!skip) {
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result.write(char);
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}
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}
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if (add_setter_suffix) {
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result.write('=');
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}
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return result.toString();
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}
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@patch
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int get hashCode {
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const arbitraryPrime = 664597;
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return 0x1fffffff & (arbitraryPrime * _name.hashCode);
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}
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}
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