fschneider@google.com
2693c71850
str[i] is translated into temp = str.charCodeAt(i) result = StringFromCharCode(temp); The existing code for charCodeAt is reused and contains the necessary range class id and range check. Review URL: https://codereview.chromium.org//11416129 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@15246 260f80e4-7a28-3924-810f-c04153c831b5
66 lines
1.9 KiB
Dart
66 lines
1.9 KiB
Dart
// Copyright (c) 2012, 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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// Test optimized [] on strings.
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var a = "abc";
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var b = "øbc";
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var c = new String.fromCharCodes([123, 456, 789]);
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test_charat(s, i) {
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return s[i];
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}
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test_const_str(i) {
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return "abc"[i];
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}
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test_const_index(s) {
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return s[0];
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}
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test_const_index2(s) {
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return s[3];
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}
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main() {
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Expect.equals("a", test_charat(a, 0));
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for (var i=0; i<10000; i++) test_charat(a, 0);
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Expect.equals("a", test_charat(a, 0));
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Expect.equals("b", test_charat(a, 1));
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Expect.equals("c", test_charat(a, 2));
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Expect.throws(() => test_charat(a, 3));
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Expect.equals("a", test_const_str(0));
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for (var i=0; i<10000; i++) test_const_str(0);
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Expect.equals("a", test_const_str(0));
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Expect.equals("b", test_const_str(1));
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Expect.equals("c", test_const_str(2));
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Expect.throws(() => test_const_str(3));
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Expect.equals("a", test_const_index(a));
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for (var i=0; i<10000; i++) test_const_index(a);
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Expect.equals("a", test_const_index(a));
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Expect.equals("ø", test_const_index(b));
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Expect.equals(new String.fromCharCodes([123]), test_const_index(c));
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Expect.throws(() => test_const_index2(a));
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Expect.equals("ø", test_charat(b, 0));
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for (var i=0; i<10000; i++) test_charat(b, 0);
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Expect.equals("ø", test_charat(b, 0));
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Expect.equals("b", test_charat(b, 1));
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Expect.equals("c", test_charat(b, 2));
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Expect.throws(() => test_charat(b, 3));
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Expect.equals(new String.fromCharCodes([123]), test_charat(c, 0));
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for (var i=0; i<10000; i++) test_charat(c, 0);
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Expect.equals(new String.fromCharCodes([123]), test_charat(c, 0));
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Expect.equals(new String.fromCharCodes([456]), test_charat(c, 1));
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Expect.equals(new String.fromCharCodes([789]), test_charat(c, 2));
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Expect.throws(() => test_charat(c, 3));
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}
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