refactored Context >> image

HISTORY.md

@@ -12,6 +12,9 @@
 * **Translation Updates:**
     * German (for error messages)
 
+### 2022-01-21
+* threads: refactored Context >> image
+
 ### 2022-01-20
 * German translation update (for error messages)
 * threads: added more localizable error strings

snap.html

@@ -17,7 +17,7 @@
         <script src="src/symbols.js?version=2021-03-03"></script>
         <script src="src/widgets.js?version=2021-17-09"></script>
         <script src="src/blocks.js?version=2022-01-07"></script>
-        <script src="src/threads.js?version=2022-01-20"></script>
+        <script src="src/threads.js?version=2022-01-21"></script>
         <script src="src/objects.js?version=2022-01-20"></script>
         <script src="src/scenes.js?version=2021-11-24"></script>
         <script src="src/gui.js?version=2022-01-17"></script>

src/threads.js

@@ -64,7 +64,7 @@ SnapExtensions, AlignmentMorph, TextMorph, Cloud, HatBlockMorph*/
 
 /*jshint esversion: 6*/
 
-modules.threads = '2022-January-20';
+modules.threads = '2022-January-21';
 
 var ThreadManager;
 var Process;
@@ -7003,6 +7003,11 @@ Context.prototype.toString = function () {
 };
 
 Context.prototype.image = function () {
+    var ring = this.toBlock();
+    return ring.doWithAlpha(1, () => ring.fullImage());
+};
+
+Context.prototype.toBlock = function () {
     var ring = new RingMorph(),
         block,
         cont;
@@ -7021,21 +7026,16 @@ Context.prototype.image = function () {
             }
         }
         ring.embed(block, this.inputs);
-        return ring.doWithAlpha(
-            1,
-            () => {
-                ring.clearAlpha();
-                return ring.fullImage();
-            }
-        );
+        ring.clearAlpha();
+        return ring;
     }
     if (this.expression instanceof Array) {
         block = this.expression[this.pc].fullCopy();
         if (block instanceof RingMorph && !block.contents()) { // empty ring
-            return block.doWithAlpha(1, () => block.fullImage());
+            return block;
         }
         ring.embed(block, this.isContinuation ? [] : this.inputs);
-        return ring.doWithAlpha(1, () => ring.fullImage());
+        return ring;
     }
 
     // otherwise show an empty ring
@@ -7048,7 +7048,7 @@ Context.prototype.image = function () {
             ring.parts()[1].addInput(inp)
         );
     }
-    return ring.doWithAlpha(1, () => ring.fullImage());
+    return ring;
 };
 
 // Context continuations: