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Unified Diff: lib/runtime/dart/convert.js

Issue 1047023002: use == and != to enable handling null/undefined (Closed) Base URL: git@github.com:dart-lang/dev_compiler.git@master
Patch Set: Created 5 years, 9 months ago
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Index: lib/runtime/dart/convert.js
diff --git a/lib/runtime/dart/convert.js b/lib/runtime/dart/convert.js
index 099f6d1fb3528c0ee80ac53ff79f5234c0cdb4be..97e86269ca748b66264f931146cc1eff7fdfbabe 100644
--- a/lib/runtime/dart/convert.js
+++ b/lib/runtime/dart/convert.js
@@ -33,7 +33,7 @@ var convert;
return dart.as(byteStream.transform(dart.as(this.decoder, async.StreamTransformer$(core.List$(core.int), dynamic))).fold(new core.StringBuffer(), (buffer, string) => dart.dinvoke(buffer, 'write', string), buffer).then((buffer) => dart.dinvoke(buffer, 'toString')), async.Future$(core.String));
}
static getByName(name) {
- if (name === null)
+ if (name == null)
return null;
name = name.toLowerCase();
return Encoding[_nameToEncoding].get(name);
@@ -56,7 +56,7 @@ var convert;
}
decode(bytes, opts) {
let allowInvalid = opts && 'allowInvalid' in opts ? opts.allowInvalid : null;
- if (allowInvalid === null)
+ if (allowInvalid == null)
allowInvalid = this[_allowInvalid];
if (allowInvalid) {
return new AsciiDecoder({allowInvalid: true}).convert(bytes);
@@ -101,13 +101,13 @@ var convert;
end = null;
let stringLength = string.length;
core.RangeError.checkValidRange(start, end, stringLength);
- if (end === null)
+ if (end == null)
end = stringLength;
let length = dart.notNull(end) - dart.notNull(start);
let result = new typed_data.Uint8List(length);
for (let i = 0; dart.notNull(i) < dart.notNull(length); i = dart.notNull(i) + 1) {
let codeUnit = string.codeUnitAt(dart.notNull(start) + dart.notNull(i));
- if ((dart.notNull(codeUnit) & ~dart.notNull(this[_subsetMask])) !== 0) {
+ if ((dart.notNull(codeUnit) & ~dart.notNull(this[_subsetMask])) != 0) {
throw new core.ArgumentError("String contains invalid characters.");
}
result.set(i, codeUnit);
@@ -156,7 +156,7 @@ var convert;
core.RangeError.checkValidRange(start, end, source.length);
for (let i = start; dart.notNull(i) < dart.notNull(end); i = dart.notNull(i) + 1) {
let codeUnit = source.codeUnitAt(i);
- if ((dart.notNull(codeUnit) & ~dart.notNull(this[_subsetMask])) !== 0) {
+ if ((dart.notNull(codeUnit) & ~dart.notNull(this[_subsetMask])) != 0) {
throw new core.ArgumentError(`Source contains invalid character with code point: ${codeUnit}.`);
}
}
@@ -180,12 +180,12 @@ var convert;
end = null;
let byteCount = bytes.length;
core.RangeError.checkValidRange(start, end, byteCount);
- if (end === null)
+ if (end == null)
end = byteCount;
let length = dart.notNull(end) - dart.notNull(start);
for (let i = start; dart.notNull(i) < dart.notNull(end); i = dart.notNull(i) + 1) {
let byte = bytes.get(i);
- if ((dart.notNull(byte) & ~dart.notNull(this[_subsetMask])) !== 0) {
+ if ((dart.notNull(byte) & ~dart.notNull(this[_subsetMask])) != 0) {
if (!dart.notNull(this[_allowInvalid])) {
throw new core.FormatException(`Invalid value in input: ${byte}`);
}
@@ -198,7 +198,7 @@ var convert;
let buffer = new core.StringBuffer();
for (let i = start; dart.notNull(i) < dart.notNull(end); i = dart.notNull(i) + 1) {
let value = bytes.get(i);
- if ((dart.notNull(value) & ~dart.notNull(this[_subsetMask])) !== 0)
+ if ((dart.notNull(value) & ~dart.notNull(this[_subsetMask])) != 0)
value = 65533;
buffer.writeCharCode(value);
}
@@ -274,7 +274,7 @@ var convert;
addSlice(source, start, end, isLast) {
core.RangeError.checkValidRange(start, end, source.length);
for (let i = start; dart.notNull(i) < dart.notNull(end); i = dart.notNull(i) + 1) {
- if ((dart.notNull(source.get(i)) & ~dart.notNull(_ASCII_MASK)) !== 0) {
+ if ((dart.notNull(source.get(i)) & ~dart.notNull(_ASCII_MASK)) != 0) {
if (dart.notNull(i) > dart.notNull(start))
this[_utf8Sink].addSlice(source, start, i, false);
this[_utf8Sink].add(/* Unimplemented const */new core.List$(core.int).from([239, 191, 189]));
@@ -298,7 +298,7 @@ var convert;
}
add(source) {
for (let i = 0; dart.notNull(i) < dart.notNull(source.length); i = dart.notNull(i) + 1) {
- if ((dart.notNull(source.get(i)) & ~dart.notNull(_ASCII_MASK)) !== 0) {
+ if ((dart.notNull(source.get(i)) & ~dart.notNull(_ASCII_MASK)) != 0) {
throw new core.FormatException("Source contains non-ASCII bytes.");
}
}
@@ -308,7 +308,7 @@ var convert;
let length = source.length;
core.RangeError.checkValidRange(start, end, length);
if (dart.notNull(start) < dart.notNull(end)) {
- if (start !== 0 || end !== length) {
+ if (start != 0 || end != length) {
source = source.sublist(start, end);
}
this.add(source);
@@ -510,7 +510,7 @@ var convert;
}
convert(text) {
let val = this[_convert](text, 0, text.length);
- return val === null ? text : val;
+ return val == null ? text : val;
}
[_convert](text, start, end) {
let result = null;
@@ -559,15 +559,15 @@ var convert;
break;
}
}
- if (replace !== null) {
- if (result === null)
+ if (replace != null) {
+ if (result == null)
result = new core.StringBuffer(text.substring(start, i));
result.write(replace);
- } else if (result !== null) {
+ } else if (result != null) {
result.write(ch);
}
}
- return result !== null ? result.toString() : null;
+ return result != null ? result.toString() : null;
}
startChunkedConversion(sink) {
if (!dart.is(sink, StringConversionSink)) {
@@ -585,7 +585,7 @@ var convert;
}
addSlice(chunk, start, end, isLast) {
let val = this[_escape]._convert(chunk, start, end);
- if (val === null) {
+ if (val == null) {
this[_sink].addSlice(chunk, start, end, isLast);
} else {
this[_sink].add(val);
@@ -605,7 +605,7 @@ var convert;
super.Error();
}
toString() {
- if (this.cause !== null) {
+ if (this.cause != null) {
return "Converting object to an encodable object failed.";
} else {
return "Converting object did not return an encodable object.";
@@ -636,27 +636,27 @@ var convert;
}
decode(source, opts) {
let reviver = opts && 'reviver' in opts ? opts.reviver : null;
- if (reviver === null)
+ if (reviver == null)
reviver = this[_reviver];
- if (reviver === null)
+ if (reviver == null)
return this.decoder.convert(source);
return new JsonDecoder(reviver).convert(source);
}
encode(value, opts) {
let toEncodable = opts && 'toEncodable' in opts ? opts.toEncodable : null;
- if (toEncodable === null)
+ if (toEncodable == null)
toEncodable = this[_toEncodable$];
- if (toEncodable === null)
+ if (toEncodable == null)
return this.encoder.convert(value);
return new JsonEncoder(dart.closureWrap(toEncodable, "(Object) → Object")).convert(value);
}
get encoder() {
- if (this[_toEncodable$] === null)
+ if (this[_toEncodable$] == null)
return new JsonEncoder();
return new JsonEncoder(dart.closureWrap(this[_toEncodable$], "(Object) → Object"));
}
get decoder() {
- if (this[_reviver] === null)
+ if (this[_reviver] == null)
return new JsonDecoder();
return new JsonDecoder(this[_reviver]);
}
@@ -716,7 +716,7 @@ var convert;
super.Converter();
}
static [_utf8Encode](string) {
- if (string === null)
+ if (string == null)
return null;
if (string.isEmpty)
return new typed_data.Uint8List(0);
@@ -740,7 +740,7 @@ var convert;
bytes.add(chunk);
}
_JsonUtf8Stringifier.stringify(object, this[_indent], dart.as(this[_toEncodable$], dart.throw_("Unimplemented type (Object) → dynamic")), this[_bufferSize], addChunk);
- if (bytes.length === 1)
+ if (bytes.length == 1)
return bytes.get(0);
let length = 0;
for (let i = 0; dart.notNull(i) < dart.notNull(bytes.length); i = dart.notNull(i) + 1) {
@@ -848,7 +848,7 @@ var convert;
throw new core.FormatException(String(e));
}
- if (reviver === null) {
+ if (reviver == null) {
return _convertJsonToDartLazy(parsed);
} else {
return _convertJsonToDart(parsed, reviver);
@@ -864,7 +864,7 @@ var convert;
class _JsonStringifier extends core.Object {
_JsonStringifier(_toEncodable) {
this[_seen] = new core.List();
- this[_toEncodable$] = dart.as(_toEncodable !== null ? _toEncodable : _defaultToEncodable, core.Function);
+ this[_toEncodable$] = dart.as(_toEncodable != null ? _toEncodable : _defaultToEncodable, core.Function);
}
static hexDigit(x) {
return dart.notNull(x) < 10 ? 48 + dart.notNull(x) : 87 + dart.notNull(x);
@@ -917,7 +917,7 @@ var convert;
break;
}
}
- } else if (charCode === _JsonStringifier.QUOTE || charCode === _JsonStringifier.BACKSLASH) {
+ } else if (charCode == _JsonStringifier.QUOTE || charCode == _JsonStringifier.BACKSLASH) {
if (dart.notNull(i) > dart.notNull(offset))
this.writeStringSlice(s, offset, i);
offset = dart.notNull(i) + 1;
@@ -925,7 +925,7 @@ var convert;
this.writeCharCode(charCode);
}
}
- if (offset === 0) {
+ if (offset == 0) {
this.writeString(s);
} else if (dart.notNull(offset) < dart.notNull(length)) {
this.writeStringSlice(s, offset, length);
@@ -971,7 +971,7 @@ var convert;
} else if (core.identical(object, false)) {
this.writeString('false');
return true;
- } else if (object === null) {
+ } else if (object == null) {
this.writeString('null');
return true;
} else if (typeof object == 'string') {
@@ -1092,7 +1092,7 @@ var convert;
}
static printOn(object, output, toEncodable, indent) {
let stringifier = null;
- if (indent === null) {
+ if (indent == null) {
stringifier = new _JsonStringStringifier(output, toEncodable);
} else {
stringifier = new _JsonStringStringifierPretty(output, toEncodable, indent);
@@ -1132,7 +1132,7 @@ var convert;
}
static stringify(object, indent, toEncodableFunction, bufferSize, addChunk) {
let stringifier = null;
- if (indent !== null) {
+ if (indent != null) {
stringifier = new _JsonUtf8StringifierPretty(toEncodableFunction, indent, bufferSize, addChunk);
} else {
stringifier = new _JsonUtf8Stringifier(toEncodableFunction, bufferSize, addChunk);
@@ -1166,9 +1166,9 @@ var convert;
if (dart.notNull(char) <= 127) {
this.writeByte(char);
} else {
- if ((dart.notNull(char) & 64512) === 55296 && dart.notNull(i) + 1 < dart.notNull(end)) {
+ if ((dart.notNull(char) & 64512) == 55296 && dart.notNull(i) + 1 < dart.notNull(end)) {
let nextChar = string.codeUnitAt(dart.notNull(i) + 1);
- if ((dart.notNull(nextChar) & 64512) === 56320) {
+ if ((dart.notNull(nextChar) & 64512) == 56320) {
char = 65536 + ((dart.notNull(char) & 1023) << 10) + (dart.notNull(nextChar) & 1023);
this.writeFourByteCharCode(char);
i = dart.notNull(i) + 1;
@@ -1209,7 +1209,7 @@ var convert;
}
writeByte(byte) {
dart.assert(dart.notNull(byte) <= 255);
- if (this.index === this.buffer.length) {
+ if (this.index == this.buffer.length) {
dart.dinvokef(this.addChunk, this.buffer, 0, this.index);
this.buffer = new typed_data.Uint8List(this.bufferSize);
this.index = 0;
@@ -1225,7 +1225,7 @@ var convert;
writeIndentation(count) {
let indent = this.indent;
let indentLength = indent.length;
- if (indentLength === 1) {
+ if (indentLength == 1) {
let char = indent.get(0);
while (dart.notNull(count) > 0) {
this.writeByte(char);
@@ -1260,7 +1260,7 @@ var convert;
}
decode(bytes, opts) {
let allowInvalid = opts && 'allowInvalid' in opts ? opts.allowInvalid : null;
- if (allowInvalid === null)
+ if (allowInvalid == null)
allowInvalid = this[_allowInvalid];
if (allowInvalid) {
return new Latin1Decoder({allowInvalid: true}).convert(bytes);
@@ -1380,7 +1380,7 @@ var convert;
super.StringConversionSinkBase();
}
addSlice(chunk, start, end, isLast) {
- if (this[_carry] !== null) {
+ if (this[_carry] != null) {
chunk = core.String['+'](this[_carry], chunk.substring(start, end));
start = 0;
end = chunk.length;
@@ -1398,12 +1398,12 @@ var convert;
while (dart.notNull(pos) < dart.notNull(end)) {
let skip = 0;
let char = chunk.codeUnitAt(pos);
- if (char === _LineSplitterSink[_LF]) {
+ if (char == _LineSplitterSink[_LF]) {
skip = 1;
- } else if (char === _LineSplitterSink[_CR]) {
+ } else if (char == _LineSplitterSink[_CR]) {
skip = 1;
if (dart.notNull(pos) + 1 < dart.notNull(end)) {
- if (chunk.codeUnitAt(dart.notNull(pos) + 1) === _LineSplitterSink[_LF]) {
+ if (chunk.codeUnitAt(dart.notNull(pos) + 1) == _LineSplitterSink[_LF]) {
skip = 2;
}
} else if (!dart.notNull(isLast)) {
@@ -1417,7 +1417,7 @@ var convert;
pos = dart.notNull(pos) + 1;
}
}
- if (pos !== start) {
+ if (pos != start) {
let carry = chunk.substring(start, pos);
if (isLast) {
adder(carry);
@@ -1543,7 +1543,7 @@ var convert;
}
close() {}
addSlice(str, start, end, isLast) {
- if (start !== 0 || end !== str.length) {
+ if (start != 0 || end != str.length) {
for (let i = start; dart.notNull(i) < dart.notNull(end); i = dart.notNull(i) + 1) {
this[_stringSink].writeCharCode(str.codeUnitAt(i));
}
@@ -1587,7 +1587,7 @@ var convert;
return this[_sink].add(str);
}
addSlice(str, start, end, isLast) {
- if (start === 0 && end === str.length) {
+ if (start == 0 && end == str.length) {
this.add(str);
} else {
this.add(str.substring(start, end));
@@ -1608,7 +1608,7 @@ var convert;
}
close() {
this[_decoder].close();
- if (this[_sink] !== null)
+ if (this[_sink] != null)
this[_sink].close();
}
add(chunk) {
@@ -1671,7 +1671,7 @@ var convert;
}
decode(codeUnits, opts) {
let allowMalformed = opts && 'allowMalformed' in opts ? opts.allowMalformed : null;
- if (allowMalformed === null)
+ if (allowMalformed == null)
allowMalformed = this[_allowMalformed];
return new Utf8Decoder({allowMalformed: allowMalformed}).convert(codeUnits);
}
@@ -1693,15 +1693,15 @@ var convert;
end = null;
let stringLength = string.length;
core.RangeError.checkValidRange(start, end, stringLength);
- if (end === null)
+ if (end == null)
end = stringLength;
let length = dart.notNull(end) - dart.notNull(start);
- if (length === 0)
+ if (length == 0)
return new typed_data.Uint8List(0);
let encoder = new _Utf8Encoder.withBufferSize(dart.notNull(length) * 3);
let endPosition = encoder._fillBuffer(string, start, end);
dart.assert(dart.notNull(endPosition) >= dart.notNull(end) - 1);
- if (endPosition !== end) {
+ if (endPosition != end) {
let lastCodeUnit = string.codeUnitAt(dart.notNull(end) - 1);
dart.assert(_isLeadSurrogate(lastCodeUnit));
let wasCombined = encoder._writeSurrogate(lastCodeUnit, 0);
@@ -1753,7 +1753,7 @@ var convert;
}
}
[_fillBuffer](str, start, end) {
- if (start !== end && dart.notNull(_isLeadSurrogate(str.codeUnitAt(dart.notNull(end) - 1)))) {
+ if (start != end && dart.notNull(_isLeadSurrogate(str.codeUnitAt(dart.notNull(end) - 1)))) {
end = dart.notNull(end) - 1;
}
let stringIndex = null;
@@ -1798,7 +1798,7 @@ var convert;
super._Utf8Encoder();
}
close() {
- if (this[_carry] !== 0) {
+ if (this[_carry] != 0) {
this.addSlice("", 0, 0, true);
return;
}
@@ -1806,26 +1806,26 @@ var convert;
}
addSlice(str, start, end, isLast) {
this[_bufferIndex] = 0;
- if (start === end && !dart.notNull(isLast)) {
+ if (start == end && !dart.notNull(isLast)) {
return;
}
- if (this[_carry] !== 0) {
+ if (this[_carry] != 0) {
let nextCodeUnit = 0;
- if (start !== end) {
+ if (start != end) {
nextCodeUnit = str.codeUnitAt(start);
} else {
dart.assert(isLast);
}
let wasCombined = this[_writeSurrogate](this[_carry], nextCodeUnit);
- dart.assert(!dart.notNull(wasCombined) || start !== end);
+ dart.assert(!dart.notNull(wasCombined) || start != end);
if (wasCombined)
start = dart.notNull(start) + 1;
this[_carry] = 0;
}
do {
start = this[_fillBuffer](str, start, end);
- let isLastSlice = dart.notNull(isLast) && start === end;
- if (start === dart.notNull(end) - 1 && dart.notNull(_isLeadSurrogate(str.codeUnitAt(start)))) {
+ let isLastSlice = dart.notNull(isLast) && start == end;
+ if (start == dart.notNull(end) - 1 && dart.notNull(_isLeadSurrogate(str.codeUnitAt(start)))) {
if (dart.notNull(isLast) && dart.notNull(this[_bufferIndex]) < dart.notNull(this[_buffer].length) - 3) {
let hasBeenCombined = this[_writeSurrogate](str.codeUnitAt(start), 0);
dart.assert(!dart.notNull(hasBeenCombined));
@@ -1854,7 +1854,7 @@ var convert;
end = null;
let length = codeUnits.length;
core.RangeError.checkValidRange(start, end, length);
- if (end === null)
+ if (end == null)
end = length;
let buffer = new core.StringBuffer();
let decoder = new _Utf8Decoder(buffer, this[_allowMalformed]);
@@ -1889,15 +1889,15 @@ var convert;
let _TAIL_SURROGATE_MIN = 56320;
// Function _isSurrogate: (int) → bool
function _isSurrogate(codeUnit) {
- return (dart.notNull(codeUnit) & dart.notNull(_SURROGATE_MASK)) === _LEAD_SURROGATE_MIN;
+ return (dart.notNull(codeUnit) & dart.notNull(_SURROGATE_MASK)) == _LEAD_SURROGATE_MIN;
}
// Function _isLeadSurrogate: (int) → bool
function _isLeadSurrogate(codeUnit) {
- return (dart.notNull(codeUnit) & dart.notNull(_SURROGATE_TAG_MASK)) === _LEAD_SURROGATE_MIN;
+ return (dart.notNull(codeUnit) & dart.notNull(_SURROGATE_TAG_MASK)) == _LEAD_SURROGATE_MIN;
}
// Function _isTailSurrogate: (int) → bool
function _isTailSurrogate(codeUnit) {
- return (dart.notNull(codeUnit) & dart.notNull(_SURROGATE_TAG_MASK)) === _TAIL_SURROGATE_MIN;
+ return (dart.notNull(codeUnit) & dart.notNull(_SURROGATE_TAG_MASK)) == _TAIL_SURROGATE_MIN;
}
// Function _combineSurrogatePair: (int, int) → int
function _combineSurrogatePair(lead, tail) {
@@ -1964,11 +1964,11 @@ var convert;
multibyte:
if (dart.notNull(expectedUnits) > 0) {
do {
- if (i === endIndex) {
+ if (i == endIndex) {
break loop;
}
let unit = codeUnits.get(i);
- if ((dart.notNull(unit) & 192) !== 128) {
+ if ((dart.notNull(unit) & 192) != 128) {
expectedUnits = 0;
if (!dart.notNull(this[_allowMalformed])) {
throw new core.FormatException(`Bad UTF-8 encoding 0x${unit.toRadixString(16)}`);
@@ -1995,7 +1995,7 @@ var convert;
}
value = UNICODE_REPLACEMENT_CHARACTER_RUNE;
}
- if (!dart.notNull(this[_isFirstCharacter]) || value !== UNICODE_BOM_CHARACTER_RUNE) {
+ if (!dart.notNull(this[_isFirstCharacter]) || value != UNICODE_BOM_CHARACTER_RUNE) {
this[_stringSink].writeCharCode(value);
}
this[_isFirstCharacter] = false;
@@ -2006,7 +2006,7 @@ var convert;
this[_isFirstCharacter] = false;
addSingleBytes(i, dart.notNull(i) + dart.notNull(oneBytes));
i = oneBytes;
- if (i === endIndex)
+ if (i == endIndex)
break;
}
let unit = codeUnits.get(((x$) => i = dart.notNull(x$) + 1, x$)(i));
@@ -2017,17 +2017,17 @@ var convert;
this[_stringSink].writeCharCode(UNICODE_REPLACEMENT_CHARACTER_RUNE);
} else {
dart.assert(dart.notNull(unit) > dart.notNull(_ONE_BYTE_LIMIT));
- if ((dart.notNull(unit) & 224) === 192) {
+ if ((dart.notNull(unit) & 224) == 192) {
value = dart.notNull(unit) & 31;
expectedUnits = extraUnits = 1;
continue loop;
}
- if ((dart.notNull(unit) & 240) === 224) {
+ if ((dart.notNull(unit) & 240) == 224) {
value = dart.notNull(unit) & 15;
expectedUnits = extraUnits = 2;
continue loop;
}
- if ((dart.notNull(unit) & 248) === 240 && dart.notNull(unit) < 245) {
+ if ((dart.notNull(unit) & 248) == 240 && dart.notNull(unit) < 245) {
value = dart.notNull(unit) & 7;
expectedUnits = extraUnits = 3;
continue loop;
@@ -2055,7 +2055,7 @@ var convert;
let _original = Symbol('_original');
// Function _convertJsonToDart: (dynamic, (dynamic, dynamic) → dynamic) → dynamic
function _convertJsonToDart(json, reviver) {
- dart.assert(reviver !== null);
+ dart.assert(reviver != null);
// Function walk: (dynamic) → dynamic
function walk(e) {
if (e == null || typeof e != "object") {
@@ -2083,7 +2083,7 @@ var convert;
}
// Function _convertJsonToDartLazy: (dynamic) → dynamic
function _convertJsonToDartLazy(object) {
- if (object === null)
+ if (object == null)
return null;
if (typeof object != "object") {
return object;
@@ -2131,7 +2131,7 @@ var convert;
return this[_isUpgraded] ? this[_upgradedMap].length : this[_computeKeys]().length;
}
get isEmpty() {
- return this.length === 0;
+ return this.length == 0;
}
get isNotEmpty() {
return dart.notNull(this.length) > 0;
@@ -2199,7 +2199,7 @@ var convert;
if (this[_isUpgraded]) {
this[_upgradedMap].clear();
} else {
- if (this[_data] !== null) {
+ if (this[_data] != null) {
dart.dinvoke(this[_data], 'clear');
}
this[_original] = this[_processed] = null;
@@ -2227,7 +2227,7 @@ var convert;
return collection.Maps.mapToString(this);
}
get [_isUpgraded]() {
- return this[_processed] === null;
+ return this[_processed] == null;
}
get [_upgradedMap]() {
dart.assert(this[_isUpgraded]);
@@ -2236,7 +2236,7 @@ var convert;
[_computeKeys]() {
dart.assert(!dart.notNull(this[_isUpgraded]));
let keys = dart.as(this[_data], core.List);
- if (keys === null) {
+ if (keys == null) {
keys = this[_data] = _JsonMap[_getPropertyNames](this[_original]);
}
return dart.as(keys, core.List$(core.String));
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