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f6ac970290
This is a reland of commit608934e330
Can be landed when Flutter with https://github.com/flutter/flutter/pull/123211 has been rolled into internal repository. Original change's description: > Reland "Add class modifiers to `dart:convert`." > > This is a reland of commitb2f4cf3e01
> > Commented out deprecation for now. > > Original change's description: > > Add class modifiers to `dart:convert`. > > > > The usual approach: > > Pure interfaces marked `interface`. > > Pure implementation classes marked `final`. > > Base classes marked `base` or nothing, and `mixin class` if reasonable. > > Combined X/XBase/XMixin where possible. > > > > CoreLibraryReviewExempt: Aske is away > > Change-Id: I927f9bd488fb385ff9c17c8fc94920a1f5076347 > > Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/289200 > > Reviewed-by: Stephen Adams <sra@google.com> > > Reviewed-by: Slava Egorov <vegorov@google.com> > > Reviewed-by: Nate Bosch <nbosch@google.com> > > Commit-Queue: Lasse Nielsen <lrn@google.com> > > CoreLibraryReviewExempt: Approved in original. > Change-Id: I1bc14f99b742567e2634dcfcbc52f332dbcc5364 > Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/290521 > Reviewed-by: Nate Bosch <nbosch@google.com> > Commit-Queue: Lasse Nielsen <lrn@google.com> CoreLibraryReviewExempt: Approved in original. Change-Id: If157e1ef2339d7a06e99a1e402f2f8ac93550b83 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/290960 Reviewed-by: Nate Bosch <nbosch@google.com> Commit-Queue: Lasse Nielsen <lrn@google.com>
105 lines
2.1 KiB
Dart
105 lines
2.1 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 "package:expect/expect.dart";
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import 'dart:convert';
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final TESTS = [
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[5, '5'],
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[-42, '-42'],
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[3.14, '3.14'],
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[true, 'true'],
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[false, 'false'],
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[null, 'null'],
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['quote"or\'', '"quote\\"or\'"'],
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['', '""'],
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[[], "[]"],
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[
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[3, -4.5, true, "hi", false],
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'[3,-4.5,true,"hi",false]'
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],
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[
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[null],
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"[null]"
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],
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[
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[
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[null]
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],
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"[[null]]"
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],
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[
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[
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[3]
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],
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"[[3]]"
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],
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[{}, "{}"],
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[
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{"x": 3, "y": 4.5, "z": "hi", "u": true, "v": false},
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'{"x":3,"y":4.5,"z":"hi","u":true,"v":false}'
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],
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[
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{"x": null},
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'{"x":null}'
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],
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[
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{"x": {}},
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'{"x":{}}'
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],
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// Note that -0.0 won't be treated the same in JS. The Json spec seems to
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// allow it, though.
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[
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{"hi there": 499, "'": -0.0},
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'{"hi there":499,"\'":-0.0}'
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],
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[r'\foo', r'"\\foo"'],
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];
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class MyStringConversionSink extends StringConversionSink {
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var buffer = new StringBuffer();
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var callback;
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MyStringConversionSink(this.callback);
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addSlice(str, start, end, bool isLast) {
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buffer.write(str.substring(start, end));
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if (isLast) close();
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}
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close() {
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callback(buffer.toString());
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}
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}
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String encode(Object? o) {
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var result;
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ChunkedConversionSink<String> stringSink =
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new MyStringConversionSink((x) => result = x);
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var objectSink = new JsonEncoder().startChunkedConversion(stringSink);
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objectSink.add(o);
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objectSink.close();
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return result;
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}
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String encode2(Object? o) {
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var result;
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var encoder = new JsonEncoder();
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ChunkedConversionSink<String> stringSink =
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new StringConversionSink.withCallback((x) => result = x);
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var objectSink = encoder.startChunkedConversion(stringSink);
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objectSink.add(o);
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objectSink.close();
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return result;
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}
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main() {
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for (var test in TESTS) {
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var o = test[0];
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var expected = test[1];
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Expect.equals(expected, encode(o));
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Expect.equals(expected, encode2(o));
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}
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}
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