Simplify the use of JS and VM annotations.

bin/generate_sequence.dart

@@ -157,7 +157,7 @@ Future<void> generateImplementation(int index) async {
   out.writeln('/// Converts this [Record] with $index positional values to '
       'a new type [R] using');
   out.writeln('/// the provided [callback] with $index positional arguments.');
-  out.writeln('@inlineVm @inlineJs');
+  out.writeln('@inline');
   out.writeln('R map<R>(R Function(${valueTypes.join(', ')}) callback) => '
       'callback(${valueNames.join(', ')});');
   out.writeln('}');

lib/src/core/context.dart

@@ -18,15 +18,13 @@ class Context {
   final int position;
 
   /// Returns a result indicating a parse success.
-  @inlineVm
-  @inlineJs
+  @inline
   @useResult
   Success<R> success<R>(R result, [int? position]) =>
       Success<R>(buffer, position ?? this.position, result);
 
   /// Returns a result indicating a parse failure.
-  @inlineVm
-  @inlineJs
+  @inline
   @useResult
   Failure failure(String message, [int? position]) =>
       Failure(buffer, position ?? this.position, message);

lib/src/core/parser.dart

@@ -135,8 +135,7 @@ abstract class Parser<R> {
   /// makes it possible to wrap the parser without loosing type information.
   @internal
   @nonVirtual
-  @inlineVm
-  @inlineJs
+  @inline
   T captureResultGeneric<T>(T Function<R>(Parser<R> self) callback) =>
       callback<R>(this);
 

lib/src/core/result.dart

@@ -34,9 +34,11 @@ class Success<R> extends Result<R> {
   bool get isSuccess => true;
 
   @override
+  @inlineVm
   final R value;
 
   @override
+  @inlineVm
   String get message =>
       throw UnsupportedError('Successful parse results do not have a message.');
 
@@ -53,9 +55,11 @@ class Failure extends Result<Never> {
   bool get isFailure => true;
 
   @override
+  @inlineVm
   Never get value => throw ParserException(this);
 
   @override
+  @inlineVm
   final String message;
 
   @override

lib/src/parser/action/trimming.dart

@@ -55,8 +55,7 @@ class TrimmingParser<R> extends DelegateParser<R, R>
     return result < 0 ? -1 : _trim(right, buffer, result);
   }
 
-  @inlineVm
-  @inlineJs
+  @inline
   int _trim(Parser parser, String buffer, int position) {
     for (;;) {
       final result = parser.fastParseOn(buffer, position);

lib/src/parser/character/predicates/lookup.dart

@@ -31,10 +31,8 @@ final class LookupCharPredicate extends CharacterPredicate {
   bool test(int charCode) =>
       start <= charCode && charCode <= stop && _testBit(charCode - start);
 
-  @inlineJs
-  @inlineVm
-  @noBoundsChecksVm
-  @noBoundsChecksJs
+  @inline
+  @noBoundsChecks
   bool _testBit(int value) =>
       (bits[value >> _shift] & _mask[value & _offset]) != 0;
 

lib/src/parser/character/predicates/ranges.dart

@@ -22,8 +22,7 @@ final class RangesCharPredicate extends CharacterPredicate {
   final Uint32List ranges;
 
   @override
-  @noBoundsChecksVm
-  @noBoundsChecksJs
+  @noBoundsChecks
   bool test(int charCode) {
     var min = 0;
     var max = ranges.length - 2;

lib/src/parser/combinator/generated/sequence_2.dart

@@ -78,8 +78,7 @@ class SequenceParser2<R1, R2> extends Parser<(R1, R2)>
 extension RecordOfValuesExtension2<T1, T2> on (T1, T2) {
   /// Converts this [Record] with 2 positional values to a new type [R] using
   /// the provided [callback] with 2 positional arguments.
-  @inlineVm
-  @inlineJs
+  @inline
   R map<R>(R Function(T1, T2) callback) => callback($1, $2);
 }
 

lib/src/parser/combinator/generated/sequence_3.dart

@@ -91,8 +91,7 @@ class SequenceParser3<R1, R2, R3> extends Parser<(R1, R2, R3)>
 extension RecordOfValuesExtension3<T1, T2, T3> on (T1, T2, T3) {
   /// Converts this [Record] with 3 positional values to a new type [R] using
   /// the provided [callback] with 3 positional arguments.
-  @inlineVm
-  @inlineJs
+  @inline
   R map<R>(R Function(T1, T2, T3) callback) => callback($1, $2, $3);
 }
 

lib/src/parser/combinator/generated/sequence_4.dart

@@ -99,8 +99,7 @@ class SequenceParser4<R1, R2, R3, R4> extends Parser<(R1, R2, R3, R4)>
 extension RecordOfValuesExtension4<T1, T2, T3, T4> on (T1, T2, T3, T4) {
   /// Converts this [Record] with 4 positional values to a new type [R] using
   /// the provided [callback] with 4 positional arguments.
-  @inlineVm
-  @inlineJs
+  @inline
   R map<R>(R Function(T1, T2, T3, T4) callback) => callback($1, $2, $3, $4);
 }
 

lib/src/parser/combinator/generated/sequence_5.dart

@@ -118,8 +118,7 @@ class SequenceParser5<R1, R2, R3, R4, R5> extends Parser<(R1, R2, R3, R4, R5)>
 extension RecordOfValuesExtension5<T1, T2, T3, T4, T5> on (T1, T2, T3, T4, T5) {
   /// Converts this [Record] with 5 positional values to a new type [R] using
   /// the provided [callback] with 5 positional arguments.
-  @inlineVm
-  @inlineJs
+  @inline
   R map<R>(R Function(T1, T2, T3, T4, T5) callback) =>
       callback($1, $2, $3, $4, $5);
 }

lib/src/parser/combinator/generated/sequence_6.dart

@@ -135,8 +135,7 @@ extension RecordOfValuesExtension6<T1, T2, T3, T4, T5, T6> on (
 ) {
   /// Converts this [Record] with 6 positional values to a new type [R] using
   /// the provided [callback] with 6 positional arguments.
-  @inlineVm
-  @inlineJs
+  @inline
   R map<R>(R Function(T1, T2, T3, T4, T5, T6) callback) =>
       callback($1, $2, $3, $4, $5, $6);
 }

lib/src/parser/combinator/generated/sequence_7.dart

@@ -145,8 +145,7 @@ extension RecordOfValuesExtension7<T1, T2, T3, T4, T5, T6, T7> on (
 ) {
   /// Converts this [Record] with 7 positional values to a new type [R] using
   /// the provided [callback] with 7 positional arguments.
-  @inlineVm
-  @inlineJs
+  @inline
   R map<R>(R Function(T1, T2, T3, T4, T5, T6, T7) callback) =>
       callback($1, $2, $3, $4, $5, $6, $7);
 }

lib/src/parser/combinator/generated/sequence_8.dart

@@ -157,8 +157,7 @@ extension RecordOfValuesExtension8<T1, T2, T3, T4, T5, T6, T7, T8> on (
 ) {
   /// Converts this [Record] with 8 positional values to a new type [R] using
   /// the provided [callback] with 8 positional arguments.
-  @inlineVm
-  @inlineJs
+  @inline
   R map<R>(R Function(T1, T2, T3, T4, T5, T6, T7, T8) callback) =>
       callback($1, $2, $3, $4, $5, $6, $7, $8);
 }

lib/src/parser/combinator/generated/sequence_9.dart

@@ -177,8 +177,7 @@ extension RecordOfValuesExtension9<T1, T2, T3, T4, T5, T6, T7, T8, T9> on (
 ) {
   /// Converts this [Record] with 9 positional values to a new type [R] using
   /// the provided [callback] with 9 positional arguments.
-  @inlineVm
-  @inlineJs
+  @inline
   R map<R>(R Function(T1, T2, T3, T4, T5, T6, T7, T8, T9) callback) =>
       callback($1, $2, $3, $4, $5, $6, $7, $8, $9);
 }

lib/src/parser/predicate/single_character.dart

@@ -28,8 +28,7 @@ class SingleCharacterParser extends CharacterParser {
       : super.internal();
 
   @override
-  @noBoundsChecksVm
-  @noBoundsChecksJs
+  @noBoundsChecks
   Result<String> parseOn(Context context) {
     final buffer = context.buffer;
     final position = context.position;
@@ -40,8 +39,7 @@ class SingleCharacterParser extends CharacterParser {
   }
 
   @override
-  @noBoundsChecksVm
-  @noBoundsChecksJs
+  @noBoundsChecks
   int fastParseOn(String buffer, int position) =>
       position < buffer.length && predicate.test(buffer.codeUnitAt(position))
           ? position + 1
@@ -60,8 +58,7 @@ class AnySingleCharacterParser extends SingleCharacterParser {
         super.internal();
 
   @override
-  @noBoundsChecksVm
-  @noBoundsChecksJs
+  @noBoundsChecks
   Result<String> parseOn(Context context) {
     final buffer = context.buffer;
     final position = context.position;
@@ -71,8 +68,7 @@ class AnySingleCharacterParser extends SingleCharacterParser {
   }
 
   @override
-  @noBoundsChecksVm
-  @noBoundsChecksJs
+  @noBoundsChecks
   int fastParseOn(String buffer, int position) =>
       position < buffer.length ? position + 1 : -1;
 }

lib/src/parser/predicate/unicode_character.dart

@@ -29,8 +29,7 @@ class UnicodeCharacterParser extends CharacterParser {
       : super.internal();
 
   @override
-  @noBoundsChecksVm
-  @noBoundsChecksJs
+  @noBoundsChecks
   Result<String> parseOn(Context context) {
     final buffer = context.buffer;
     final position = context.position;
@@ -53,8 +52,7 @@ class UnicodeCharacterParser extends CharacterParser {
   }
 
   @override
-  @noBoundsChecksVm
-  @noBoundsChecksJs
+  @noBoundsChecks
   int fastParseOn(String buffer, int position) {
     if (position < buffer.length) {
       var codeUnit = buffer.codeUnitAt(position++);
@@ -85,8 +83,7 @@ class AnyUnicodeCharacterParser extends UnicodeCharacterParser {
         super.internal();
 
   @override
-  @noBoundsChecksVm
-  @noBoundsChecksJs
+  @noBoundsChecks
   Result<String> parseOn(Context context) {
     final buffer = context.buffer;
     final position = context.position;
@@ -104,8 +101,7 @@ class AnyUnicodeCharacterParser extends UnicodeCharacterParser {
   }
 
   @override
-  @noBoundsChecksVm
-  @noBoundsChecksJs
+  @noBoundsChecks
   int fastParseOn(String buffer, int position) {
     if (position < buffer.length) {
       if (_isLeadSurrogate(buffer.codeUnitAt(position++)) &&
@@ -123,17 +119,14 @@ class AnyUnicodeCharacterParser extends UnicodeCharacterParser {
 // https://github.com/dart-lang/sdk/blob/1207250b0d5687f9016cf115068addf6593dba58/sdk/lib/core/string.dart#L932-L955
 
 // Tests if the code is a UTF-16 lead surrogate.
-@inlineVm
-@inlineJs
+@inline
 bool _isLeadSurrogate(int code) => (code & 0xFC00) == 0xD800;
 
 // Tests if the code is a UTF-16 trail surrogate.
-@inlineVm
-@inlineJs
+@inline
 bool _isTrailSurrogate(int code) => (code & 0xFC00) == 0xDC00;
 
 // Combines a lead and a trail surrogate value into a single code point.
-@inlineVm
-@inlineJs
+@inline
 int _combineSurrogatePair(int start, int end) =>
     0x10000 + ((start & 0x3FF) << 10) + (end & 0x3FF);

lib/src/shared/annotations.dart

@@ -1,7 +1,12 @@
+/// Tests if the code is targeting JavaScript.
+const isJavaScript = identical(1, 1.0);
+
 // Request a function to be inlined.
-const inlineVm = pragma('vm:prefer-inline');
+const inline = isJavaScript ? inlineJs : inlineVm;
 const inlineJs = pragma('dart2js:tryInline');
+const inlineVm = pragma('vm:prefer-inline');
 
 // Removes all array bounds checks.
-const noBoundsChecksVm = pragma('vm:unsafe:no-bounds-checks');
+const noBoundsChecks = isJavaScript ? noBoundsChecksJs : noBoundsChecksVm;
 const noBoundsChecksJs = pragma('dart2js:index-bounds:trust');
+const noBoundsChecksVm = pragma('vm:unsafe:no-bounds-checks');