Update src/compiler/jsgen.js

src/compiler/jsgen.js

@@ -337,7 +337,7 @@ const isSafeConstantForEqualsOptimization = input => {
  * A frame contains some information about the current substack being compiled.
  */
 class Frame {
-    constructor (isLoop, parentKind) {
+    constructor (isLoop, parentKind, overrideLoop = false) {
         /**
          * Whether the current stack runs in a loop (while, for)
          * @type {boolean}
@@ -351,6 +351,8 @@ class Frame {
          */
         this.isLastBlock = false;
 
+        this.overrideLoop = overrideLoop 
+
         /**
          * General important data that needs to be carried down from other threads.
          * @type {boolean}
@@ -497,6 +499,9 @@ class JSGenerator {
     isLastBlockInLoop () {
         for (let i = this.frames.length - 1; i >= 0; i--) {
             const frame = this.frames[i];
+            if (frame.overrideLoop) {
+                return frame.isLoop
+            }
             if (!frame.isLastBlock) {
                 return false;
             }
@@ -567,7 +572,7 @@ class JSGenerator {
             const originalSource = this.source;
             this.source = '(yield* (function*() {';
             // descend now since descendStack modifies source
-            this.descendStack(node.code, new Frame(false, 'control.inlineStackOutput'));
+            this.descendStack(node.code, new Frame(false, 'control.inlineStackOutput', true));
             this.source += '})())';
             // save edited
             const stackSource = this.source;