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Side by Side Diff: runtime/lib/integers_patch.dart

Issue 2230383003: Implement @patch annotation for patch class members (Closed) Base URL: git@github.com:dart-lang/sdk.git@master
Patch Set: wip Created 4 years, 4 months ago
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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file 1 // Copyright (c) 2012, 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 // Dart core library. 4 // Dart core library.
5 5
6 // VM implementation of int. 6 // VM implementation of int.
7 7
8 import 'dart:_internal' as internal; 8 import 'dart:_internal' as internal;
9 9
10 @patch class int { 10 @patch class int {
11 11
12 /* @patch */ const factory int.fromEnvironment(String name, 12 @patch const factory int.fromEnvironment(String name,
13 {int defaultValue}) 13 {int defaultValue})
14 native "Integer_fromEnvironment"; 14 native "Integer_fromEnvironment";
15 15
16 16
17 static int _tryParseSmi(String str, int first, int last) { 17 static int _tryParseSmi(String str, int first, int last) {
18 assert(first <= last); 18 assert(first <= last);
19 var ix = first; 19 var ix = first;
20 var sign = 1; 20 var sign = 1;
21 var c = str.codeUnitAt(ix); 21 var c = str.codeUnitAt(ix);
22 // Check for leading '+' or '-'. 22 // Check for leading '+' or '-'.
23 if ((c == 0x2b) || (c == 0x2d)) { 23 if ((c == 0x2b) || (c == 0x2d)) {
(...skipping 11 matching lines...) Expand all
35 for (int i = ix; i <= last; i++) { 35 for (int i = ix; i <= last; i++) {
36 var c = 0x30 ^ str.codeUnitAt(i); 36 var c = 0x30 ^ str.codeUnitAt(i);
37 if (9 < c) { 37 if (9 < c) {
38 return null; 38 return null;
39 } 39 }
40 result = 10 * result + c; 40 result = 10 * result + c;
41 } 41 }
42 return sign * result; 42 return sign * result;
43 } 43 }
44 44
45 /* @patch */ static int parse(String source, 45 @patch static int parse(String source,
46 { int radix, 46 { int radix,
47 int onError(String str) }) { 47 int onError(String str) }) {
48 if (source == null) throw new ArgumentError("The source must not be null"); 48 if (source == null) throw new ArgumentError("The source must not be null");
49 if (source.isEmpty) return _throwFormatException(onError, source, 0, radix); 49 if (source.isEmpty) return _throwFormatException(onError, source, 0, radix);
50 if (radix == null || radix == 10) { 50 if (radix == null || radix == 10) {
51 // Try parsing immediately, without trimming whitespace. 51 // Try parsing immediately, without trimming whitespace.
52 int result = _tryParseSmi(source, 0, source.length - 1); 52 int result = _tryParseSmi(source, 0, source.length - 1);
53 if (result != null) return result; 53 if (result != null) return result;
54 } else if (radix < 2 || radix > 36) { 54 } else if (radix < 2 || radix > 36) {
55 throw new RangeError("Radix $radix not in range 2..36"); 55 throw new RangeError("Radix $radix not in range 2..36");
56 } 56 }
57 // Split here so improve odds of parse being inlined and the checks omitted. 57 // Split here so improve odds of parse being inlined and the checks omitted.
(...skipping 146 matching lines...) Expand 10 before | Expand all | Expand 10 after
204 6, 594823321, 12, 353814783205469041, 204 6, 594823321, 12, 353814783205469041,
205 6, 729000000, 12, 531441000000000000, /* radix: 30 */ 205 6, 729000000, 12, 531441000000000000, /* radix: 30 */
206 6, 887503681, 12, 787662783788549761, 206 6, 887503681, 12, 787662783788549761,
207 6, 1073741824, 12, 1152921504606846976, 207 6, 1073741824, 12, 1152921504606846976,
208 5, 39135393, 12, 1667889514952984961, 208 5, 39135393, 12, 1667889514952984961,
209 5, 45435424, 12, 2386420683693101056, 209 5, 45435424, 12, 2386420683693101056,
210 5, 52521875, 12, 3379220508056640625, /* radix: 35 */ 210 5, 52521875, 12, 3379220508056640625, /* radix: 35 */
211 5, 60466176, 11, 131621703842267136, 211 5, 60466176, 11, 131621703842267136,
212 ]; 212 ];
213 } 213 }
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