Remove entries from dart_vm_entry_points.txt and use annotations (flutter#6226)

The `dart_vm_entry_points.txt` file is now deprecated in favor of annotations.
Support for parsing and generating the entry-points files will be removed from Dart shortly.

Author: sjindel-google

lib/ui/compositing.dart

@@ -15,6 +15,7 @@ class Scene extends NativeFieldWrapperClass2 {
   /// or extended directly.
   ///
   /// To create a Scene object, use a [SceneBuilder].
+  @pragma('vm:entry-point')
   Scene._();
 
 
@@ -45,6 +46,7 @@ class Scene extends NativeFieldWrapperClass2 {
 /// it to the scene using [addPicture].
 class SceneBuilder extends NativeFieldWrapperClass2 {
   /// Creates an empty [SceneBuilder] object.
+  @pragma('vm:entry-point')
   SceneBuilder() { _constructor(); }
   void _constructor() native 'SceneBuilder_constructor';
 

lib/ui/geometry.dart

@@ -589,6 +589,7 @@ class Rect {
   Rect._();
 
   /// Construct a rectangle from its left, top, right, and bottom edges.
+  @pragma('vm:entry-point')
   Rect.fromLTRB(double left, double top, double right, double bottom) {
     _value
       ..[0] = left

lib/ui/hooks.dart

@@ -12,6 +12,7 @@ dynamic _decodeJSON(String message) {
   return message != null ? json.decode(message) : null;
 }
 
+@pragma('vm:entry-point')
 void _updateWindowMetrics(double devicePixelRatio,
                           double width,
                           double height,
@@ -43,13 +44,16 @@ typedef _LocaleClosure = String Function();
 
 String _localeClosure() => window._locale.toString();
 
+@pragma('vm:entry-point')
 _LocaleClosure _getLocaleClosure() => _localeClosure;
 
+@pragma('vm:entry-point')
 void _updateLocale(String languageCode, String countryCode) {
   window._locale = new Locale(languageCode, countryCode);
   _invoke(window.onLocaleChanged, window._onLocaleChangedZone);
 }
 
+@pragma('vm:entry-point')
 void _updateUserSettingsData(String jsonData) {
   final Map<String, dynamic> data = json.decode(jsonData);
   _updateTextScaleFactor(data['textScaleFactor'].toDouble());
@@ -65,11 +69,13 @@ void _updateAlwaysUse24HourFormat(bool alwaysUse24HourFormat) {
   window._alwaysUse24HourFormat = alwaysUse24HourFormat;
 }
 
+@pragma('vm:entry-point')
 void _updateSemanticsEnabled(bool enabled) {
   window._semanticsEnabled = enabled;
   _invoke(window.onSemanticsEnabledChanged, window._onSemanticsEnabledChangedZone);
 }
 
+@pragma('vm:entry-point')
 void _updateAccessibilityFeatures(int values) {
   final AccessibilityFeatures newFeatures = new AccessibilityFeatures._(values);
   if (newFeatures == window._accessibilityFeatures)
@@ -78,6 +84,7 @@ void _updateAccessibilityFeatures(int values) {
   _invoke(window.onAccessibilityFeaturesChanged, window._onAccessibilityFlagsChangedZone);
 }
 
+@pragma('vm:entry-point')
 void _dispatchPlatformMessage(String name, ByteData data, int responseId) {
   if (window.onPlatformMessage != null) {
     _invoke3<String, ByteData, PlatformMessageResponseCallback>(
@@ -94,11 +101,13 @@ void _dispatchPlatformMessage(String name, ByteData data, int responseId) {
   }
 }
 
+@pragma('vm:entry-point')
 void _dispatchPointerDataPacket(ByteData packet) {
   if (window.onPointerDataPacket != null)
     _invoke1<PointerDataPacket>(window.onPointerDataPacket, window._onPointerDataPacketZone, _unpackPointerDataPacket(packet));
 }
 
+@pragma('vm:entry-point')
 void _dispatchSemanticsAction(int id, int action, ByteData args) {
   _invoke3<int, SemanticsAction, ByteData>(
     window.onSemanticsAction,
@@ -109,10 +118,12 @@ void _dispatchSemanticsAction(int id, int action, ByteData args) {
   );
 }
 
+@pragma('vm:entry-point')
 void _beginFrame(int microseconds) {
   _invoke1<Duration>(window.onBeginFrame, window._onBeginFrameZone, new Duration(microseconds: microseconds));
 }
 
+@pragma('vm:entry-point')
 void _drawFrame() {
   _invoke(window.onDrawFrame, window._onDrawFrameZone);
 }

lib/ui/natives.dart

@@ -27,6 +27,7 @@ Future<developer.ServiceExtensionResponse> _scheduleFrame(
   }));
 }
 
+@pragma('vm:entry-point')
 void _setupHooks() {
   assert(() {
     // In debug mode, register the schedule frame extension.
@@ -54,12 +55,15 @@ Function _getCallbackFromHandle(int handle) native 'GetCallbackFromHandle';
 // Required for gen_snapshot to work correctly.
 int _isolateId;
 
+@pragma('vm:entry-point')
 Function _getPrintClosure() => _print;
+@pragma('vm:entry-point')
 Function _getScheduleMicrotaskClosure() => _scheduleMicrotask;
 
 // Though the "main" symbol is not included in any of the libraries imported
 // above, the builtin library will be included manually during VM setup. This
 // symbol is only necessary for precompilation. It is marked as a stanalone
 // entry point into the VM. This prevents the precompiler from tree shaking
 // away "main".
+@pragma('vm:entry-point')
 Function _getMainClosure() => main;

lib/ui/painting.dart

@@ -102,6 +102,7 @@ class Color {
   /// For example, to get a fully opaque orange, you would use `const
   /// Color(0xFFFF9000)` (`FF` for the alpha, `FF` for the red, `90` for the
   /// green, and `00` for the blue).
+  @pragma('vm:entry-point')
   const Color(int value) : value = value & 0xFFFFFFFF;
 
   /// Construct a color from the lower 8 bits of four integers.
@@ -1485,9 +1486,14 @@ class _ImageInfo {
   _ImageInfo(this.width, this.height, this.format, this.rowBytes) {
     rowBytes ??= width * 4;
   }
+
+  @pragma('vm:entry-point', 'get')
   int width;
+  @pragma('vm:entry-point', 'get')
   int height;
+  @pragma('vm:entry-point', 'get')
   int format;
+  @pragma('vm:entry-point', 'get')
   int rowBytes;
 }
 
@@ -1502,6 +1508,7 @@ class Image extends NativeFieldWrapperClass2 {
   /// or extended directly.
   ///
   /// To obtain an [Image] object, use [instantiateImageCodec].
+  @pragma('vm:entry-point')
   Image._();
 
   /// The number of image pixels along the image's horizontal axis.
@@ -1549,6 +1556,7 @@ class FrameInfo extends NativeFieldWrapperClass2 {
   ///
   /// To obtain an instance of the [FrameInfo] interface, see
   /// [Codec.getNextFrame].
+  @pragma('vm:entry-point')
   FrameInfo._();
 
   /// The duration this frame should be shown.
@@ -1566,6 +1574,7 @@ class Codec extends NativeFieldWrapperClass2 {
   ///
   /// To obtain an instance of the [Codec] interface, see
   /// [instantiateImageCodec].
+  @pragma('vm:entry-point')
   Codec._();
 
   /// Number of frames in this image.
@@ -1752,6 +1761,7 @@ enum PathOperation {
 /// used to create clip regions using [Canvas.clipPath].
 class Path extends NativeFieldWrapperClass2 {
   /// Create a new empty [Path] object.
+  @pragma('vm:entry-point')
   Path() { _constructor(); }
   void _constructor() native 'Path_constructor';
 
@@ -2401,6 +2411,7 @@ class ImageFilter extends NativeFieldWrapperClass2 {
 class Shader extends NativeFieldWrapperClass2 {
   /// This class is created by the engine, and should not be instantiated
   /// or extended directly.
+  @pragma('vm:entry-point')
   Shader._();
 }
 
@@ -2664,6 +2675,7 @@ class ImageShader extends Shader {
   /// direction and y direction respectively. The fourth argument gives the
   /// matrix to apply to the effect. All the arguments are required and must not
   /// be null.
+  @pragma('vm:entry-point')
   ImageShader(Image image, TileMode tmx, TileMode tmy, Float64List matrix4) :
     assert(image != null), // image is checked on the engine side
     assert(tmx != null),
@@ -2828,6 +2840,7 @@ class Canvas extends NativeFieldWrapperClass2 {
   ///
   /// To end the recording, call [PictureRecorder.endRecording] on the
   /// given recorder.
+  @pragma('vm:entry-point')
   Canvas(PictureRecorder recorder, [ Rect cullRect ]) : assert(recorder != null) {
     if (recorder.isRecording)
       throw new ArgumentError('"recorder" must not already be associated with another Canvas.');
@@ -3545,6 +3558,7 @@ class Picture extends NativeFieldWrapperClass2 {
   /// or extended directly.
   ///
   /// To create a [Picture], use a [PictureRecorder].
+  @pragma('vm:entry-point')
   Picture._();
 
   /// Creates an image from this picture.
@@ -3575,6 +3589,7 @@ class PictureRecorder extends NativeFieldWrapperClass2 {
   /// Creates a new idle PictureRecorder. To associate it with a
   /// [Canvas] and begin recording, pass this [PictureRecorder] to the
   /// [Canvas] constructor.
+  @pragma('vm:entry-point')
   PictureRecorder() { _constructor(); }
   void _constructor() native 'PictureRecorder_constructor';
 
@@ -3640,4 +3655,3 @@ Future<T> _futurize<T>(_Callbacker<T> callbacker) {
     throw new Exception(error);
   return completer.future;
 }
-

lib/ui/semantics.dart

@@ -552,6 +552,7 @@ class SemanticsFlag {
 /// [Window.updateSemantics] to update the semantics conveyed to the user.
 class SemanticsUpdateBuilder extends NativeFieldWrapperClass2 {
   /// Creates an empty [SemanticsUpdateBuilder] object.
+  @pragma('vm:entry-point')
   SemanticsUpdateBuilder() { _constructor(); }
   void _constructor() native 'SemanticsUpdateBuilder_constructor';
 
@@ -727,6 +728,7 @@ class SemanticsUpdate extends NativeFieldWrapperClass2 {
   /// or extended directly.
   ///
   /// To create a SemanticsUpdate object, use a [SemanticsUpdateBuilder].
+  @pragma('vm:entry-point')
   SemanticsUpdate._();
 
   /// Releases the resources used by this semantics update.

lib/ui/text.dart

@@ -750,6 +750,7 @@ class TextBox {
     this.direction,
   );
 
+  @pragma('vm:entry-point')
   TextBox._(
     this.left,
     this.top,
@@ -948,6 +949,7 @@ class Paragraph extends NativeFieldWrapperClass2 {
   /// or extended directly.
   ///
   /// To create a [Paragraph] object, use a [ParagraphBuilder].
+  @pragma('vm:entry-point')
   Paragraph._();
 
   /// The amount of horizontal space this paragraph occupies.
@@ -1035,6 +1037,7 @@ class Paragraph extends NativeFieldWrapperClass2 {
 class ParagraphBuilder extends NativeFieldWrapperClass2 {
   /// Creates a [ParagraphBuilder] object, which is used to create a
   /// [Paragraph].
+  @pragma('vm:entry-point')
   ParagraphBuilder(ParagraphStyle style) { _constructor(style._encoded, style._fontFamily, style._fontSize, style._lineHeight, style._ellipsis, _encodeLocale(style._locale)); }
   void _constructor(Int32List encoded, String fontFamily, double fontSize, double lineHeight, String ellipsis, String locale) native 'ParagraphBuilder_constructor';
 

runtime/dart_vm_entry_points.txt

@@ -1,46 +1,2 @@
-dart:_internal,::,_printClosure
-dart:async,::,_setScheduleImmediateClosure
-dart:io,::,_getUriBaseClosure
-dart:io,::,_setupHooks
-dart:io,_Platform,_localeClosure
-dart:io,_Platform,set:_nativeScript
-dart:isolate,::,_getIsolateScheduleImmediateClosure
-dart:isolate,::,_setupHooks
-dart:isolate,::,_startMainIsolate
-dart:ui,::,_beginFrame
-dart:ui,::,_dispatchPlatformMessage
-dart:ui,::,_dispatchPointerDataPacket
-dart:ui,::,_dispatchSemanticsAction
-dart:ui,::,_drawFrame
-dart:ui,::,_getLocaleClosure
-dart:ui,::,_getMainClosure
-dart:ui,::,_getPrintClosure
-dart:ui,::,_getScheduleMicrotaskClosure
-dart:ui,::,_setupHooks
-dart:ui,::,_updateLocale
-dart:ui,::,_updateSemanticsEnabled
-dart:ui,::,_updateAccessibilityFeatures
-dart:ui,::,_updateUserSettingsData
-dart:ui,::,_updateWindowMetrics
-dart:ui,_ImageInfo,get:width
-dart:ui,_ImageInfo,get:height
-dart:ui,_ImageInfo,get:format
-dart:ui,_ImageInfo,get:rowBytes
-dart:ui,Canvas,Canvas.
-dart:ui,Codec,Codec._
-dart:ui,Color,Color.
-dart:ui,FrameInfo,FrameInfo._
-dart:ui,Image,Image._
-dart:ui,ImageShader,ImageShader.
-dart:ui,Paragraph,Paragraph._
-dart:ui,ParagraphBuilder,ParagraphBuilder.
-dart:ui,Path,Path.
-dart:ui,Picture,Picture._
-dart:ui,PictureRecorder,PictureRecorder.
-dart:ui,Rect,Rect.fromLTRB
-dart:ui,Scene,Scene._
-dart:ui,SceneBuilder,SceneBuilder.
-dart:ui,SemanticsUpdate,SemanticsUpdate._
-dart:ui,SemanticsUpdateBuilder,SemanticsUpdateBuilder.
-dart:ui,Shader,Shader._
-dart:ui,TextBox,TextBox._
+# Please don't add entries to this file.
+# Use the @pragma('vm:entry-point') annotation instead.