EmuHalt is squelched

nes: fixed loadState() npe

index.html

@@ -584,6 +584,7 @@ $( ".dropdown-submenu" ).click(function(event) {
           beforeSend(event, hint) {
             const error = hint.originalException;
             if (error && error.hasOwnProperty('$loc')) return null; // ignore EmuHalt
+            if (error && error.squelchError) return null; // ignore EmuHalt
             return event;
           },
       });

scripts/docker/run.sh

@@ -4,8 +4,9 @@ export _8BITWS_SERVER_ROOT=/app
 
 cd "$_8BITWS_SERVER_ROOT"
 
+curl -O https://sehugg.github.io/8bitworkshop/gen/server/server.js
+
 while true; do
-  curl -O https://sehugg.github.io/8bitworkshop/gen/server/server.js
 
   node server.js
 

src/common/baseplatform.ts

@@ -270,7 +270,7 @@ export abstract class BaseDebugPlatform extends BasePlatform {
     this.onBreakpointHit = callback;
   }
   clearDebug() {
-    if (this.debugBreakState != null) {
+    if (this.debugBreakState != null && this.debugSavedState != null) {
       this.loadState(this.debugSavedState);
     }
     this.debugSavedState = null;

src/common/emu.ts

@@ -224,6 +224,7 @@ export class RAM {
 
 export class EmuHalt extends Error {
   $loc : SourceLocation;
+  squelchError = true;
   constructor(msg: string, loc?: SourceLocation) {
     super(msg);
     this.$loc = loc;

src/test/testutil.ts

@@ -175,3 +175,12 @@ describe('Tokenizer', function () {
       'ident ident code-fragment ident eof');
   });
 });
+
+describe('EmuHalt', function () {
+  try {
+    throw new EmuHalt("test");
+  } catch (err) {
+    assert.ok(err instanceof EmuHalt);
+    assert.ok(err.squelchError);
+  }
+});