Use Object.create(…) instead of new …() for inheritance (faster)

1 files changed, 25 insertions, 25 deletions

diff --git a/blocks.js b/blocks.js
index 67324ca..3613dae 100644
--- a/blocks.js
+++ b/blocks.js
@@ -240,7 +240,7 @@ WorldMorph.prototype.customMorphs = function () {
 
 // SyntaxElementMorph inherits from Morph:
 
-SyntaxElementMorph.prototype = new Morph();
+SyntaxElementMorph.prototype = Object.create(Morph.prototype);
 SyntaxElementMorph.prototype.constructor = SyntaxElementMorph;
 SyntaxElementMorph.uber = Morph.prototype;
 
@@ -1937,7 +1937,7 @@ SyntaxElementMorph.prototype.endLayout = function () {
 
 // BlockMorph inherits from SyntaxElementMorph:
 
-BlockMorph.prototype = new SyntaxElementMorph();
+BlockMorph.prototype = Object.create(SyntaxElementMorph.prototype);
 BlockMorph.prototype.constructor = BlockMorph;
 BlockMorph.uber = SyntaxElementMorph.prototype;
 
@@ -3262,7 +3262,7 @@ BlockMorph.prototype.snap = function () {
 
 // CommandBlockMorph inherits from BlockMorph:
 
-CommandBlockMorph.prototype = new BlockMorph();
+CommandBlockMorph.prototype = Object.create(BlockMorph.prototype);
 CommandBlockMorph.prototype.constructor = CommandBlockMorph;
 CommandBlockMorph.uber = BlockMorph.prototype;
 
@@ -3942,7 +3942,7 @@ CommandBlockMorph.prototype.drawBottomRightEdge = function (context) {
 
 // HatBlockMorph inherits from CommandBlockMorph:
 
-HatBlockMorph.prototype = new CommandBlockMorph();
+HatBlockMorph.prototype = Object.create(CommandBlockMorph.prototype);
 HatBlockMorph.prototype.constructor = HatBlockMorph;
 HatBlockMorph.uber = CommandBlockMorph.prototype;
 
@@ -4120,7 +4120,7 @@ HatBlockMorph.prototype.drawTopLeftEdge = function (context) {
 
 // ReporterBlockMorph inherits from BlockMorph:
 
-ReporterBlockMorph.prototype = new BlockMorph();
+ReporterBlockMorph.prototype = Object.create(BlockMorph.prototype);
 ReporterBlockMorph.prototype.constructor = ReporterBlockMorph;
 ReporterBlockMorph.uber = BlockMorph.prototype;
 
@@ -4644,7 +4644,7 @@ ReporterBlockMorph.prototype.drawDiamond = function (context) {
 
 // RingMorph inherits from ReporterBlockMorph:
 
-RingMorph.prototype = new ReporterBlockMorph();
+RingMorph.prototype = Object.create(ReporterBlockMorph.prototype);
 RingMorph.prototype.constructor = RingMorph;
 RingMorph.uber = ReporterBlockMorph.prototype;
 
@@ -4781,7 +4781,7 @@ RingMorph.prototype.fixBlockColor = function (nearest, isForced) {
 
 // ScriptsMorph inherits from FrameMorph:
 
-ScriptsMorph.prototype = new FrameMorph();
+ScriptsMorph.prototype = Object.create(FrameMorph.prototype);
 ScriptsMorph.prototype.constructor = ScriptsMorph;
 ScriptsMorph.uber = FrameMorph.prototype;
 
@@ -5321,7 +5321,7 @@ ScriptsMorph.prototype.reactToDropOf = function (droppedMorph, hand) {
 
 // ArgMorph inherits from SyntaxElementMorph:
 
-ArgMorph.prototype = new SyntaxElementMorph();
+ArgMorph.prototype = Object.create(SyntaxElementMorph.prototype);
 ArgMorph.prototype.constructor = ArgMorph;
 ArgMorph.uber = SyntaxElementMorph.prototype;
 
@@ -5434,7 +5434,7 @@ ArgMorph.prototype.isEmptySlot = function () {
 
 // CommandSlotMorph inherits from ArgMorph:
 
-CommandSlotMorph.prototype = new ArgMorph();
+CommandSlotMorph.prototype = Object.create(ArgMorph.prototype);
 CommandSlotMorph.prototype.constructor = CommandSlotMorph;
 CommandSlotMorph.uber = ArgMorph.prototype;
 
@@ -5884,7 +5884,7 @@ CommandSlotMorph.prototype.drawEdges = function (context) {
 
 // RingCommandSlotMorph inherits from CommandSlotMorph:
 
-RingCommandSlotMorph.prototype = new CommandSlotMorph();
+RingCommandSlotMorph.prototype = Object.create(CommandSlotMorph.prototype);
 RingCommandSlotMorph.prototype.constructor = RingCommandSlotMorph;
 RingCommandSlotMorph.uber = CommandSlotMorph.prototype;
 
@@ -6040,7 +6040,7 @@ RingCommandSlotMorph.prototype.drawFlat = function (context) {
 
 // CSlotMorph inherits from CommandSlotMorph:
 
-CSlotMorph.prototype = new CommandSlotMorph();
+CSlotMorph.prototype = Object.create(CommandSlotMorph.prototype);
 CSlotMorph.prototype.constructor = CSlotMorph;
 CSlotMorph.uber = CommandSlotMorph.prototype;
 
@@ -6463,7 +6463,7 @@ CSlotMorph.prototype.drawBottomEdge = function (context) {
 
 // InputSlotMorph inherits from ArgMorph:
 
-InputSlotMorph.prototype = new ArgMorph();
+InputSlotMorph.prototype = Object.create(ArgMorph.prototype);
 InputSlotMorph.prototype.constructor = InputSlotMorph;
 InputSlotMorph.uber = ArgMorph.prototype;
 
@@ -7399,7 +7399,7 @@ InputSlotMorph.prototype.drawRoundBorder = function (context) {
 
 // TemplateSlotMorph inherits from ArgMorph:
 
-TemplateSlotMorph.prototype = new ArgMorph();
+TemplateSlotMorph.prototype = Object.create(ArgMorph.prototype);
 TemplateSlotMorph.prototype.constructor = TemplateSlotMorph;
 TemplateSlotMorph.uber = ArgMorph.prototype;
 
@@ -7503,7 +7503,7 @@ TemplateSlotMorph.prototype.drawRounded = ReporterBlockMorph
 
 // BooleanSlotMorph inherits from ArgMorph:
 
-BooleanSlotMorph.prototype = new ArgMorph();
+BooleanSlotMorph.prototype = Object.create(ArgMorph.prototype);
 BooleanSlotMorph.prototype.constructor = BooleanSlotMorph;
 BooleanSlotMorph.uber = ArgMorph.prototype;
 
@@ -7660,7 +7660,7 @@ BooleanSlotMorph.prototype.isEmptySlot = function () {
 
 // ArrowMorph inherits from Morph:
 
-ArrowMorph.prototype = new Morph();
+ArrowMorph.prototype = Object.create(Morph.prototype);
 ArrowMorph.prototype.constructor = ArrowMorph;
 ArrowMorph.uber = Morph.prototype;
 
@@ -7730,7 +7730,7 @@ ArrowMorph.prototype.drawNew = function () {
 
 // TextSlotMorph inherits from InputSlotMorph:
 
-TextSlotMorph.prototype = new InputSlotMorph();
+TextSlotMorph.prototype = Object.create(InputSlotMorph.prototype);
 TextSlotMorph.prototype.constructor = TextSlotMorph;
 TextSlotMorph.uber = InputSlotMorph.prototype;
 
@@ -7813,7 +7813,7 @@ TextSlotMorph.prototype.layoutChanged = function () {
 
 // SymbolMorph inherits from Morph:
 
-SymbolMorph.prototype = new Morph();
+SymbolMorph.prototype = Object.create(Morph.prototype);
 SymbolMorph.prototype.constructor = SymbolMorph;
 SymbolMorph.uber = Morph.prototype;
 
@@ -9106,7 +9106,7 @@ SymbolMorph.prototype.drawSymbolRobot = function (canvas, color) {
 
 // ColorSlotMorph  inherits from ArgMorph:
 
-ColorSlotMorph.prototype = new ArgMorph();
+ColorSlotMorph.prototype = Object.create(ArgMorph.prototype);
 ColorSlotMorph.prototype.constructor = ColorSlotMorph;
 ColorSlotMorph.uber = ArgMorph.prototype;
 
@@ -9214,7 +9214,7 @@ ColorSlotMorph.prototype.drawRectBorder =
 
 // BlockHighlightMorph inherits from Morph:
 
-BlockHighlightMorph.prototype = new Morph();
+BlockHighlightMorph.prototype = Object.create(Morph.prototype);
 BlockHighlightMorph.prototype.constructor = BlockHighlightMorph;
 BlockHighlightMorph.uber = Morph.prototype;
 
@@ -9239,7 +9239,7 @@ function BlockHighlightMorph() {
 
 // MultiArgMorph  inherits from ArgMorph:
 
-MultiArgMorph.prototype = new ArgMorph();
+MultiArgMorph.prototype = Object.create(ArgMorph.prototype);
 MultiArgMorph.prototype.constructor = MultiArgMorph;
 MultiArgMorph.uber = ArgMorph.prototype;
 
@@ -9669,7 +9669,7 @@ MultiArgMorph.prototype.isEmptySlot = function () {
 
 // ArgLabelMorph  inherits from ArgMorph:
 
-ArgLabelMorph.prototype = new ArgMorph();
+ArgLabelMorph.prototype = Object.create(ArgMorph.prototype);
 ArgLabelMorph.prototype.constructor = ArgLabelMorph;
 ArgLabelMorph.uber = ArgMorph.prototype;
 
@@ -9799,7 +9799,7 @@ ArgLabelMorph.prototype.isEmptySlot = function () {
 
 // FunctionSlotMorph inherits from ArgMorph:
 
-FunctionSlotMorph.prototype = new ArgMorph();
+FunctionSlotMorph.prototype = Object.create(ArgMorph.prototype);
 FunctionSlotMorph.prototype.constructor = FunctionSlotMorph;
 FunctionSlotMorph.uber = ArgMorph.prototype;
 
@@ -10180,7 +10180,7 @@ FunctionSlotMorph.prototype.drawDiamond = function (context) {
 
 // ReporterSlotMorph inherits from FunctionSlotMorph:
 
-ReporterSlotMorph.prototype = new FunctionSlotMorph();
+ReporterSlotMorph.prototype = Object.create(FunctionSlotMorph.prototype);
 ReporterSlotMorph.prototype.constructor = ReporterSlotMorph;
 ReporterSlotMorph.uber = FunctionSlotMorph.prototype;
 
@@ -10263,7 +10263,7 @@ ReporterSlotMorph.prototype.fixLayout = function () {
 
 // ReporterSlotMorph inherits from FunctionSlotMorph:
 
-RingReporterSlotMorph.prototype = new ReporterSlotMorph();
+RingReporterSlotMorph.prototype = Object.create(ReporterSlotMorph.prototype);
 RingReporterSlotMorph.prototype.constructor = RingReporterSlotMorph;
 RingReporterSlotMorph.uber = ReporterSlotMorph.prototype;
 
@@ -10651,7 +10651,7 @@ RingReporterSlotMorph.prototype.drawDiamond = function (context) {
 
 // CommentMorph inherits from BoxMorph:
 
-CommentMorph.prototype = new BoxMorph();
+CommentMorph.prototype = Object.create(BoxMorph.prototype);
 CommentMorph.prototype.constructor = CommentMorph;
 CommentMorph.uber = BoxMorph.prototype;