Fix debugging of switch statements (fix #2562)

src/jsparse.c

@@ -2481,7 +2481,7 @@ NO_INLINE JsVar *jspeStatementSwitch() {
   JSP_ASSERT_MATCH(LEX_R_SWITCH);
   JSP_MATCH('(');
   JsVar *switchOn = jspeExpression();
-  JsExecFlags preservedExecState = execInfo.execute&EXEC_IN_LOOP;
+  JsExecFlags preservedExecState = execInfo.execute&(EXEC_IN_LOOP|EXEC_DEBUGGER_MASK);
   JSP_SAVE_EXECUTE();
   bool execute = JSP_SHOULD_EXECUTE;
   JSP_MATCH_WITH_CLEANUP_AND_RETURN(')', jsvUnLock(switchOn), 0);
@@ -2496,6 +2496,11 @@ NO_INLINE JsVar *jspeStatementSwitch() {
     if (execute) execInfo.execute=EXEC_YES|EXEC_IN_SWITCH|preservedExecState;
     // we do the match after setting execute so that we're definitely allocating a string (we don't if we're not executing)
     JSP_MATCH_WITH_CLEANUP_AND_RETURN(LEX_R_CASE, jsvUnLock(switchOn), 0);
+    #ifdef USE_DEBUGGER
+    if ((execInfo.execute&EXEC_DEBUGGER_NEXT_LINE) && JSP_SHOULD_EXECUTE) {
+      jsiDebuggerLoop();
+    }
+    #endif
     JsVar *test = jspeAssignmentExpression();
     execInfo.execute = oldFlags|EXEC_IN_SWITCH;
     JSP_MATCH_WITH_CLEANUP_AND_RETURN(':', jsvUnLock2(switchOn, test), 0);