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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 | 4 |
5 class ConstantEmitter implements ConstantVisitor { | 5 class ConstantEmitter implements ConstantVisitor { |
6 final Compiler compiler; | 6 final Compiler compiler; |
7 final Namer namer; | 7 final Namer namer; |
8 | 8 |
9 CodeBuffer buffer; | 9 CodeBuffer buffer; |
10 bool shouldEmitCanonicalVersion; | 10 bool shouldEmitCanonicalVersion; |
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84 | 84 |
85 /** | 85 /** |
86 * Write the contents of the quoted string to a [CodeBuffer] in | 86 * Write the contents of the quoted string to a [CodeBuffer] in |
87 * a form that is valid as JavaScript string literal content. | 87 * a form that is valid as JavaScript string literal content. |
88 * The string is assumed quoted by single quote characters. | 88 * The string is assumed quoted by single quote characters. |
89 */ | 89 */ |
90 void writeEscapedString(DartString string, | 90 void writeEscapedString(DartString string, |
91 CodeBuffer buffer, | 91 CodeBuffer buffer, |
92 Node diagnosticNode) { | 92 Node diagnosticNode) { |
93 Iterator<int> iterator = string.iterator(); | 93 Iterator<int> iterator = string.iterator(); |
94 while (iterator.hasNext()) { | 94 while (iterator.hasNext) { |
95 int code = iterator.next(); | 95 int code = iterator.next(); |
96 if (identical(code, $SQ)) { | 96 if (identical(code, $SQ)) { |
97 buffer.add(r"\'"); | 97 buffer.add(r"\'"); |
98 } else if (identical(code, $LF)) { | 98 } else if (identical(code, $LF)) { |
99 buffer.add(r'\n'); | 99 buffer.add(r'\n'); |
100 } else if (identical(code, $CR)) { | 100 } else if (identical(code, $CR)) { |
101 buffer.add(r'\r'); | 101 buffer.add(r'\r'); |
102 } else if (identical(code, $LS)) { | 102 } else if (identical(code, $LS)) { |
103 // This Unicode line terminator and $PS are invalid in JS string | 103 // This Unicode line terminator and $PS are invalid in JS string |
104 // literals. | 104 // literals. |
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243 buffer.add(getJsConstructor(constant.type.element)); | 243 buffer.add(getJsConstructor(constant.type.element)); |
244 buffer.add("("); | 244 buffer.add("("); |
245 for (int i = 0; i < constant.fields.length; i++) { | 245 for (int i = 0; i < constant.fields.length; i++) { |
246 if (i != 0) buffer.add(", "); | 246 if (i != 0) buffer.add(", "); |
247 _visit(constant.fields[i]); | 247 _visit(constant.fields[i]); |
248 } | 248 } |
249 buffer.add(")"); | 249 buffer.add(")"); |
250 } | 250 } |
251 } | 251 } |
252 } | 252 } |
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