Cleanup dependencies of core/painting (flutter#2741)

This patch removes spurious dependences on other parts of the engine.

sky/engine/core/compositing/SceneBuilder.cpp

@@ -30,20 +30,10 @@ static void SceneBuilder_constructor(Dart_NativeArguments args) {
   DartCallConstructor(&SceneBuilder::create, args);
 }
 
-static void SceneBuilder_pushTransform(Dart_NativeArguments args) {
-  DartArgIterator it(args);
-  Float64List matrix4 = it.GetNext<Float64List>();
-  if (it.had_exception())
-    return;
-  ExceptionState es;
-  GetReceiver<SceneBuilder>(args)->pushTransform(matrix4, es);
-  if (es.had_exception())
-    Dart_ThrowException(es.GetDartException(args, true));
-}
-
 IMPLEMENT_WRAPPERTYPEINFO(ui, SceneBuilder);
 
 #define FOR_EACH_BINDING(V) \
+  V(SceneBuilder, pushTransform) \
   V(SceneBuilder, pushClipRect) \
   V(SceneBuilder, pushClipRRect) \
   V(SceneBuilder, pushClipPath) \
@@ -63,7 +53,6 @@ FOR_EACH_BINDING(DART_NATIVE_CALLBACK)
 void SceneBuilder::RegisterNatives(DartLibraryNatives* natives) {
   natives->Register({
     { "SceneBuilder_constructor", SceneBuilder_constructor, 1, true },
-    { "SceneBuilder_pushTransform", SceneBuilder_pushTransform, 2, true },
 FOR_EACH_BINDING(DART_REGISTER_NATIVE)
   });
 }
@@ -78,11 +67,9 @@ SceneBuilder::~SceneBuilder()
 {
 }
 
-void SceneBuilder::pushTransform(const Float64List& matrix4, ExceptionState& es)
+void SceneBuilder::pushTransform(const Float64List& matrix4)
 {
-    SkMatrix sk_matrix = toSkMatrix(matrix4, es);
-    if (es.had_exception())
-        return;
+    SkMatrix sk_matrix = toSkMatrix(matrix4);
     std::unique_ptr<flow::TransformLayer> layer(new flow::TransformLayer());
     layer->set_transform(sk_matrix);
     addLayer(std::move(layer));

sky/engine/core/compositing/SceneBuilder.h

@@ -32,7 +32,7 @@ class SceneBuilder : public base::RefCountedThreadSafe<SceneBuilder>, public Dar
 
     ~SceneBuilder() override;
 
-    void pushTransform(const Float64List& matrix4, ExceptionState&);
+    void pushTransform(const Float64List& matrix4);
     void pushClipRect(double left, double right, double top, double bottom);
     void pushClipRRect(const RRect& rrect);
     void pushClipPath(const CanvasPath* path);

sky/engine/core/dart/compositing.dart

@@ -40,7 +40,14 @@ class SceneBuilder extends NativeFieldWrapperClass2 {
   /// The objects are transformed by the given matrix before rasterization.
   ///
   /// See [pop] for details about the operation stack.
-  void pushTransform(Float64List matrix4) native "SceneBuilder_pushTransform";
+  void pushTransform(Float64List matrix4) {
+    if (matrix4 == null)
+      throw new ArgumentError("[matrix4] argument cannot be null");
+    if (matrix4.length != 16)
+      throw new ArgumentError("[matrix4] must have 16 entries.");
+    _pushTransform(matrix4);
+  }
+  void _pushTransform(Float64List matrix4) native "SceneBuilder_pushTransform";
 
   /// Pushes a rectangular clip operation onto the operation stack.
   ///

sky/engine/core/dart/painting.dart

@@ -380,6 +380,8 @@ class ImageShader extends Shader {
       throw new ArgumentError("[tmy] argument cannot be null");
     if (matrix4 == null)
       throw new ArgumentError("[matrix4] argument cannot be null");
+    if (matrix4.length != 16)
+      throw new ArgumentError("[matrix4] must have 16 entries.");
     _constructor();
     _initWithImage(image, tmx.index, tmy.index, matrix4);
   }

sky/engine/core/painting/Canvas.cpp

@@ -9,7 +9,6 @@
 #include "sky/engine/core/painting/CanvasImage.h"
 #include "sky/engine/core/painting/Matrix.h"
 #include "sky/engine/core/text/Paragraph.h"
-#include "sky/engine/platform/geometry/IntRect.h"
 #include "sky/engine/tonic/dart_args.h"
 #include "sky/engine/tonic/dart_binding_macros.h"
 #include "sky/engine/tonic/dart_converter.h"
@@ -71,8 +70,8 @@ scoped_refptr<Canvas> Canvas::create(PictureRecorder* recorder,
                                      double top,
                                      double right,
                                      double bottom) {
-    ASSERT(recorder);
-    ASSERT(!recorder->isRecording());
+    DCHECK(recorder);
+    DCHECK(!recorder->isRecording());
     scoped_refptr<Canvas> canvas = new Canvas(recorder->beginRecording(
         SkRect::MakeLTRB(left, top, right, bottom)));
     recorder->set_canvas(canvas.get());
@@ -262,14 +261,14 @@ void Canvas::drawPath(const CanvasPath* path, const Paint& paint)
 {
     if (!m_canvas)
         return;
-    ASSERT(path);
+    DCHECK(path);
     m_canvas->drawPath(path->path(), paint.sk_paint);
 }
 
 void Canvas::drawImage(const CanvasImage* image, double x, double y, const Paint& paint) {
     if (!m_canvas)
         return;
-    ASSERT(image);
+    DCHECK(image);
     m_canvas->drawImage(image->image(), x, y, paint.paint());
 }
 
@@ -285,7 +284,7 @@ void Canvas::drawImageRect(const CanvasImage* image,
                            const Paint& paint) {
     if (!m_canvas)
         return;
-    ASSERT(image);
+    DCHECK(image);
     m_canvas->drawImageRect(image->image(),
                             SkRect::MakeLTRB(srcLeft, srcTop, srcRight, srcBottom),
                             SkRect::MakeLTRB(dstLeft, dstTop, dstRight, dstBottom),
@@ -305,7 +304,7 @@ void Canvas::drawImageNine(const CanvasImage* image,
                            const Paint& paint) {
     if (!m_canvas)
         return;
-    ASSERT(image);
+    DCHECK(image);
     SkRect center = SkRect::MakeLTRB(centerLeft, centerTop, centerRight, centerBottom);
     SkIRect icenter;
     center.round(&icenter);
@@ -319,14 +318,14 @@ void Canvas::drawPicture(Picture* picture)
 {
     if (!m_canvas)
         return;
-    ASSERT(picture);
+    DCHECK(picture);
     m_canvas->drawPicture(picture->toSkia().get());
 }
 
 void Canvas::drawParagraph(Paragraph* paragraph, double x, double y) {
     if (!m_canvas)
         return;
-    ASSERT(paragraph);
+    DCHECK(paragraph);
     paragraph->paint(this, x, y);
 }
 

sky/engine/core/painting/Canvas.h

@@ -6,7 +6,6 @@
 #define SKY_ENGINE_CORE_PAINTING_CANVAS_H_
 
 #include "base/memory/ref_counted.h"
-#include "sky/engine/bindings/exception_state.h"
 #include "sky/engine/core/painting/CanvasPath.h"
 #include "sky/engine/core/painting/Offset.h"
 #include "sky/engine/core/painting/Paint.h"

sky/engine/core/painting/CanvasColor.h

@@ -7,8 +7,6 @@
 
 #include "sky/engine/core/painting/Rect.h"
 #include "sky/engine/tonic/dart_wrappable.h"
-#include "sky/engine/wtf/PassRefPtr.h"
-#include "sky/engine/wtf/RefCounted.h"
 #include "third_party/skia/include/core/SkColor.h"
 
 namespace blink {

sky/engine/core/painting/CanvasGradient.cpp

@@ -40,8 +40,8 @@ void CanvasGradient::initLinear(const std::vector<Point>& end_points,
                                 const std::vector<CanvasColor>& colors,
                                 const std::vector<float>& color_stops,
                                 SkShader::TileMode tile_mode) {
-  ASSERT(end_points.size() == 2);
-  ASSERT(colors.size() == color_stops.size() || color_stops.data() == nullptr);
+  DCHECK(end_points.size() == 2);
+  DCHECK(colors.size() == color_stops.size() || color_stops.data() == nullptr);
   SkPoint sk_end_points[2];
   for (int i = 0; i < 2; ++i)
     sk_end_points[i] = end_points[i].sk_point;
@@ -61,7 +61,7 @@ void CanvasGradient::initRadial(const Point& center,
                                 const std::vector<CanvasColor>& colors,
                                 const std::vector<float>& color_stops,
                                 SkShader::TileMode tile_mode) {
-  ASSERT(colors.size() == color_stops.size() || color_stops.data() == nullptr);
+  DCHECK(colors.size() == color_stops.size() || color_stops.data() == nullptr);
 
   std::vector<SkColor> sk_colors;
   sk_colors.reserve(colors.size());

sky/engine/core/painting/CanvasGradient.h

@@ -17,7 +17,7 @@ class DartLibraryNatives;
 template <>
 struct DartConverter<SkShader::TileMode> : public DartConverterInteger<SkShader::TileMode> {};
 
-COMPILE_ASSERT(SkShader::kTileModeCount == 3, Need_to_update_TileMode_enum);
+static_assert(SkShader::kTileModeCount == 3, "Need to update tile mode enum");
 
 class CanvasGradient : public Shader {
   DEFINE_WRAPPERTYPEINFO();

sky/engine/core/painting/ImageShader.cpp

@@ -15,26 +15,17 @@ static void ImageShader_constructor(Dart_NativeArguments args) {
   DartCallConstructor(&ImageShader::create, args);
 }
 
-static void ImageShader_initWithImage(Dart_NativeArguments args) {
-  DartArgIterator it(args);
-  CanvasImage* image = it.GetNext<CanvasImage*>();
-  SkShader::TileMode tmx = it.GetNext<SkShader::TileMode>();
-  SkShader::TileMode tmy = it.GetNext<SkShader::TileMode>();
-  Float64List matrix4 = it.GetNext<Float64List>();
-  if (it.had_exception())
-    return;
-  ExceptionState es;
-  GetReceiver<ImageShader>(args)->initWithImage(image, tmx, tmy, matrix4, es);
-  if (es.had_exception())
-    Dart_ThrowException(es.GetDartException(args, true));
-}
-
 IMPLEMENT_WRAPPERTYPEINFO(ui, ImageShader);
 
+#define FOR_EACH_BINDING(V) \
+  V(ImageShader, initWithImage)
+
+FOR_EACH_BINDING(DART_NATIVE_CALLBACK)
+
 void ImageShader::RegisterNatives(DartLibraryNatives* natives) {
   natives->Register({
     { "ImageShader_constructor", ImageShader_constructor, 1, true },
-    { "ImageShader_initWithImage", ImageShader_initWithImage, 5, true },
+FOR_EACH_BINDING(DART_REGISTER_NATIVE)
   });
 }
 
@@ -45,14 +36,9 @@ scoped_refptr<ImageShader> ImageShader::create() {
 void ImageShader::initWithImage(CanvasImage* image,
                                 SkShader::TileMode tmx,
                                 SkShader::TileMode tmy,
-                                const Float64List& matrix4,
-                                ExceptionState& es) {
-  ASSERT(image != NULL);
-
-  SkMatrix sk_matrix = toSkMatrix(matrix4, es);
-  if (es.had_exception())
-      return;
-
+                                const Float64List& matrix4) {
+  DCHECK(image != NULL);
+  SkMatrix sk_matrix = toSkMatrix(matrix4);
   SkBitmap bitmap;
   image->image()->asLegacyBitmap(&bitmap, SkImage::kRO_LegacyBitmapMode);
 

sky/engine/core/painting/ImageShader.h

@@ -5,7 +5,6 @@
 #ifndef SKY_ENGINE_CORE_PAINTING_IMAGESHADER_H_
 #define SKY_ENGINE_CORE_PAINTING_IMAGESHADER_H_
 
-#include "sky/engine/bindings/exception_state.h"
 #include "sky/engine/core/painting/CanvasGradient.h"
 #include "sky/engine/core/painting/CanvasImage.h"
 #include "sky/engine/core/painting/Shader.h"
@@ -27,8 +26,7 @@ class ImageShader : public Shader {
   void initWithImage(CanvasImage* image,
                      SkShader::TileMode tmx,
                      SkShader::TileMode tmy,
-                     const Float64List& matrix4,
-                     ExceptionState& es);
+                     const Float64List& matrix4);
 
   static void RegisterNatives(DartLibraryNatives* natives);
 

sky/engine/core/painting/Matrix.cpp

@@ -13,23 +13,9 @@ static const int kSkMatrixIndexToMatrix4Index[] = {
     3, 7, 15,
 };
 
-SkMatrix toSkMatrix(const Float64List& matrix4, ExceptionState& es)
-{
-    ASSERT(matrix4.data());
-    SkMatrix sk_matrix;
-    if (matrix4.num_elements() != 16) {
-        es.ThrowTypeError("Incorrect number of elements in matrix.");
-        return sk_matrix;
-    }
-
-    for (int i = 0; i < 9; ++i)
-        sk_matrix[i] = matrix4[kSkMatrixIndexToMatrix4Index[i]];
-    return sk_matrix;
-}
-
 SkMatrix toSkMatrix(const Float64List& matrix4)
 {
-    ASSERT(matrix4.data());
+    DCHECK(matrix4.data());
     SkMatrix sk_matrix;
     for (int i = 0; i < 9; ++i) {
         int matrix4_index = kSkMatrixIndexToMatrix4Index[i];

sky/engine/core/painting/Matrix.h

@@ -5,16 +5,11 @@
 #ifndef SKY_ENGINE_CORE_PAINTING_MATRIX_H_
 #define SKY_ENGINE_CORE_PAINTING_MATRIX_H_
 
-#include "sky/engine/bindings/exception_state.h"
 #include "sky/engine/tonic/float64_list.h"
 #include "third_party/skia/include/core/SkMatrix.h"
 
 namespace blink {
 
-// TODO(abarth): Remove this version of toSkMatrix and do the error checking
-// inside the VM.
-SkMatrix toSkMatrix(const Float64List& matrix4, ExceptionState& es);
-
 SkMatrix toSkMatrix(const Float64List& matrix4);
 Float64List toMatrix4(const SkMatrix& sk_matrix);
 

sky/engine/core/painting/Paint.h

@@ -8,9 +8,6 @@
 #include "sky/engine/core/painting/CanvasColor.h"
 #include "sky/engine/core/painting/TransferMode.h"
 #include "sky/engine/tonic/dart_wrappable.h"
-#include "sky/engine/wtf/PassRefPtr.h"
-#include "sky/engine/wtf/RefCounted.h"
-#include "sky/engine/wtf/text/WTFString.h"
 #include "third_party/skia/include/core/SkPaint.h"
 
 namespace blink {

sky/engine/core/painting/Picture.cpp

@@ -21,7 +21,7 @@ DART_BIND_ALL(Picture, FOR_EACH_BINDING)
 
 scoped_refptr<Picture> Picture::create(sk_sp<SkPicture> skPicture)
 {
-    ASSERT(skPicture);
+    DCHECK(skPicture);
     return new Picture(skPicture);
 }
 

sky/engine/core/painting/RRect.cpp

@@ -29,7 +29,7 @@ RRect DartConverter<RRect>::FromDart(Dart_Handle dart_rrect) {
   Dart_TypedDataAcquireData(
       value, &type, reinterpret_cast<void**>(&data), &num_elements);
   DCHECK(!LogIfError(value));
-  ASSERT(type == Dart_TypedData_kFloat32 && num_elements == 6);
+  DCHECK(type == Dart_TypedData_kFloat32 && num_elements == 6);
 
   result.sk_rrect.setRectXY(
       SkRect::MakeLTRB(data[0], data[1], data[2], data[3]),

sky/engine/core/painting/RSTransform.cpp

@@ -28,7 +28,7 @@ RSTransform DartConverter<RSTransform>::FromDart(Dart_Handle dart_xform) {
   Dart_TypedDataAcquireData(
       value, &type, reinterpret_cast<void**>(&data), &num_elements);
   DCHECK(!LogIfError(value));
-  ASSERT(type == Dart_TypedData_kFloat32 && num_elements == 4);
+  DCHECK(type == Dart_TypedData_kFloat32 && num_elements == 4);
 
   SkScalar* dest[] = {
     &result.sk_xform.fSCos,

sky/engine/core/painting/Rect.cpp

@@ -46,7 +46,7 @@ Rect DartConverter<Rect>::FromDart(Dart_Handle dart_rect) {
   Dart_TypedDataAcquireData(
       value, &type, reinterpret_cast<void**>(&data), &num_elements);
   DCHECK(!LogIfError(value));
-  ASSERT(type == Dart_TypedData_kFloat32 && num_elements == 4);
+  DCHECK(type == Dart_TypedData_kFloat32 && num_elements == 4);
 
   SkScalar* dest[] = {
     &result.sk_rect.fLeft,

sky/engine/core/painting/TransferMode.h

@@ -25,7 +25,7 @@ struct DartConverter<TransferMode>
 // If this fails, it's because SkXfermode has changed. We need to change
 // TransferMode.dart to ensure the TransferMode enum is in sync with the C++
 // values.
-COMPILE_ASSERT(SkXfermode::kLastMode == 28, Need_to_update_TransferMode_dart);
+static_assert(SkXfermode::kLastMode == 28, "Need to update transfer mode enum");
 
 } // namespace blink