Improve a CodeGenerator error message.

brad4d · copybara-github · commit 80d269f72bab · 2020-07-14T12:41:17.000-07:00
PiperOrigin-RevId: 321213375
diff --git a/src/com/google/javascript/jscomp/CodeGenerator.java b/src/com/google/javascript/jscomp/CodeGenerator.java
@@ -389,7 +389,7 @@ protected void add(Node node, Context context) {
 
       case HOOK:
         {
-          checkState(childCount == 3, node);
+          checkState(childCount == 3, "%s wrong number of children: %s", node, childCount);
           int p = NodeUtil.precedence(type);
           Context rhsContext = getContextForNoInOperator(context);
           addExpr(first, p + 1, context);

Original file line number	Diff line number	Diff line change
`@@ -389,7 +389,7 @@ protected void add(Node node, Context context) {`
`389`	`389`
`390`	`390`	`case HOOK:`
`391`	`391`	`{`
`392`		`- checkState(childCount == 3, node);`
	`392`	`+ checkState(childCount == 3, "%s wrong number of children: %s", node, childCount);`
`393`	`393`	`int p = NodeUtil.precedence(type);`
`394`	`394`	`Context rhsContext = getContextForNoInOperator(context);`
`395`	`395`	`addExpr(first, p + 1, context);`