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Issue 11361190: a === b -> identical(a, b) (Closed) Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart
Patch Set: Address comments. Created 8 years, 1 month ago
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1 // Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file 1 // Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file
2 // for details. All rights reserved. Use of this source code is governed by a 2 // for details. All rights reserved. Use of this source code is governed by a
3 // BSD-style license that can be found in the LICENSE file. 3 // BSD-style license that can be found in the LICENSE file.
4 4
5 /** 5 /**
6 * The StringBuffer class is useful for concatenating strings 6 * The StringBuffer class is useful for concatenating strings
7 * efficiently. Only on a call to [toString] are the strings 7 * efficiently. Only on a call to [toString] are the strings
8 * concatenated to a single String. 8 * concatenated to a single String.
9 */ 9 */
10 class StringBuffer implements OutputStream { 10 class StringBuffer implements OutputStream {
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42 * Returns the length of the buffer. 42 * Returns the length of the buffer.
43 */ 43 */
44 int get length { 44 int get length {
45 return length_; 45 return length_;
46 } 46 }
47 47
48 /** 48 /**
49 * Appends [str] to the buffer. 49 * Appends [str] to the buffer.
50 */ 50 */
51 void append(String str) { 51 void append(String str) {
52 if (str === null || str.isEmpty) return; 52 if (str == null || str.isEmpty) return;
53 buffer_.add(str); 53 buffer_.add(str);
54 length_ += str.length; 54 length_ += str.length;
55 } 55 }
56 56
57 /** 57 /**
58 * Appends all items in [strings] to the buffer. 58 * Appends all items in [strings] to the buffer.
59 */ 59 */
60 void appendAll(Collection<String> strings) { 60 void appendAll(Collection<String> strings) {
61 strings.forEach((str) { append(str); }); 61 strings.forEach((str) { append(str); });
62 } 62 }
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80 buffer_.add(result); 80 buffer_.add(result);
81 // Since we track the length at each append operation, there is no 81 // Since we track the length at each append operation, there is no
82 // need to update it in this function. 82 // need to update it in this function.
83 return result; 83 return result;
84 } 84 }
85 85
86 GrowableArray<String> buffer_; 86 GrowableArray<String> buffer_;
87 int length_; 87 int length_;
88 final bool closed = false; 88 final bool closed = false;
89 } 89 }
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