Remove dart backend

test/dart_codegen/expect/convert/ascii.dart

-part of dart.convert;
- const AsciiCodec ASCII = const AsciiCodec();
- const int _ASCII_MASK = 0x7F;
- class AsciiCodec extends Encoding {final bool _allowInvalid;
- const AsciiCodec({
-  bool allowInvalid : false}
-) : _allowInvalid = allowInvalid;
- String get name => "us-ascii";
- String decode(List<int> bytes, {
-  bool allowInvalid}
-) {
-  if (allowInvalid == null) allowInvalid = _allowInvalid;
-   if (allowInvalid) {
-    return const AsciiDecoder(allowInvalid: true).convert(bytes);
-    }
-   else {
-    return const AsciiDecoder(allowInvalid: false).convert(bytes);
-    }
-  }
- AsciiEncoder get encoder => const AsciiEncoder();
- AsciiDecoder get decoder => _allowInvalid ? const AsciiDecoder(allowInvalid: true) : const AsciiDecoder(allowInvalid: false);
-}
- class _UnicodeSubsetEncoder extends Converter<String, List<int>> {final int _subsetMask;
- const _UnicodeSubsetEncoder(this._subsetMask);
- List<int> convert(String string, [int start = 0, int end]) {
-int stringLength = string.length;
- RangeError.checkValidRange(start, end, stringLength);
- if (end == null) end = stringLength;
- int length = end - start;
- List result = new Uint8List(length);
- for (int i = 0; i < length; i++) {
-  var codeUnit = string.codeUnitAt(start + i);
-   if ((codeUnit & ~_subsetMask) != 0) {
-    throw new ArgumentError("String contains invalid characters.");
-    }
-   result[i] = codeUnit;
-  }
- return DEVC$RT.cast(result, DEVC$RT.type((List<dynamic> _) {
-  }
-), DEVC$RT.type((List<int> _) {
-  }
-), "CompositeCast", """line 96, column 12 of dart:convert/ascii.dart: """, result is List<int>, false);
-}
- StringConversionSink startChunkedConversion(Sink<List<int>> sink) {
-if (sink is! ByteConversionSink) {
-  sink = new ByteConversionSink.from(sink);
-  }
- return new _UnicodeSubsetEncoderSink(_subsetMask, DEVC$RT.cast(sink, DEVC$RT.type((Sink<List<int>> _) {
-  }
-), ByteConversionSink, "ImplicitCast", """line 109, column 55 of dart:convert/ascii.dart: """, sink is ByteConversionSink, true));
-}
- Stream<List<int>> bind(Stream<String> stream) => super.bind(stream);
-}
- class AsciiEncoder extends _UnicodeSubsetEncoder {const AsciiEncoder() : super(_ASCII_MASK);
-}
- class _UnicodeSubsetEncoderSink extends StringConversionSinkBase {final ByteConversionSink _sink;
- final int _subsetMask;
- _UnicodeSubsetEncoderSink(this._subsetMask, this._sink);
- void close() {
-_sink.close();
-}
- void addSlice(String source, int start, int end, bool isLast) {
-RangeError.checkValidRange(start, end, source.length);
- for (int i = start; i < end; i++) {
-int codeUnit = source.codeUnitAt(i);
- if ((codeUnit & ~_subsetMask) != 0) {
-throw new ArgumentError("Source contains invalid character with code point: $codeUnit.");
-}
-}
- _sink.add(source.codeUnits.sublist(start, end));
- if (isLast) {
-close();
-}
-}
-}
- abstract class _UnicodeSubsetDecoder extends Converter<List<int>, String> {final bool _allowInvalid;
- final int _subsetMask;
- const _UnicodeSubsetDecoder(this._allowInvalid, this._subsetMask);
- String convert(List<int> bytes, [int start = 0, int end]) {
-int byteCount = bytes.length;
- RangeError.checkValidRange(start, end, byteCount);
- if (end == null) end = byteCount;
- int length = end - start;
- for (int i = start; i < end; i++) {
-int byte = bytes[i];
- if ((byte & ~_subsetMask) != 0) {
-if (!_allowInvalid) {
-throw new FormatException("Invalid value in input: $byte");
-}
- return _convertInvalid(bytes, start, end);
-}
-}
- return new String.fromCharCodes(bytes, start, end);
-}
- String _convertInvalid(List<int> bytes, int start, int end) {
-StringBuffer buffer = new StringBuffer();
- for (int i = start; i < end; i++) {
-int value = bytes[i];
- if ((value & ~_subsetMask) != 0) value = 0xFFFD;
- buffer.writeCharCode(value);
-}
- return buffer.toString();
-}
- ByteConversionSink startChunkedConversion(Sink<String> sink);
- Stream<String> bind(Stream<List<int>> stream) => super.bind(stream);
-}
- class AsciiDecoder extends _UnicodeSubsetDecoder {const AsciiDecoder({
-bool allowInvalid : false}
-) : super(allowInvalid, _ASCII_MASK);
- ByteConversionSink startChunkedConversion(Sink<String> sink) {
-StringConversionSink stringSink;
- if (sink is StringConversionSink) {
-stringSink = sink;
-}
- else {
-stringSink = new StringConversionSink.from(sink);
-}
- if (_allowInvalid) {
-return new _ErrorHandlingAsciiDecoderSink(stringSink.asUtf8Sink(false));
-}
- else {
-return new _SimpleAsciiDecoderSink(stringSink);
-}
-}
-}
- class _ErrorHandlingAsciiDecoderSink extends ByteConversionSinkBase {ByteConversionSink _utf8Sink;
- _ErrorHandlingAsciiDecoderSink(this._utf8Sink);
- void close() {
-_utf8Sink.close();
-}
- void add(List<int> source) {
-addSlice(source, 0, source.length, false);
-}
- void addSlice(List<int> source, int start, int end, bool isLast) {
-RangeError.checkValidRange(start, end, source.length);
- for (int i = start; i < end; i++) {
-if ((source[i] & ~_ASCII_MASK) != 0) {
-if (i > start) _utf8Sink.addSlice(source, start, i, false);
- _utf8Sink.add(const <int> [0xEF, 0xBF, 0xBD]);
- start = i + 1;
-}
-}
- if (start < end) {
-_utf8Sink.addSlice(source, start, end, isLast);
-}
- else if (isLast) {
-close();
-}
-}
-}
- class _SimpleAsciiDecoderSink extends ByteConversionSinkBase {Sink _sink;
- _SimpleAsciiDecoderSink(this._sink);
- void close() {
-_sink.close();
-}
- void add(List<int> source) {
-for (int i = 0; i < source.length; i++) {
-if ((source[i] & ~_ASCII_MASK) != 0) {
-throw new FormatException("Source contains non-ASCII bytes.");
-}
-}
- _sink.add(new String.fromCharCodes(source));
-}
- void addSlice(List<int> source, int start, int end, bool isLast) {
-final int length = source.length;
- RangeError.checkValidRange(start, end, length);
- if (start < end) {
-if (start != 0 || end != length) {
-source = source.sublist(start, end);
-}
- add(source);
-}
- if (isLast) close();
-}
-}