[GR-17457] Use Java instanceof pattern matching in InParseNode

eregon · eregon · commit 0fa2edc75ba5 · 2023-04-27T12:40:44.000Z
PullRequest: truffleruby/3797
diff --git a/src/main/java/org/truffleruby/parser/ast/InParseNode.java b/src/main/java/org/truffleruby/parser/ast/InParseNode.java
@@ -58,8 +58,7 @@ public InParseNode(
             ParseNode nextCase) {
         super(position);
 
-        if (expressionNodes instanceof ArrayParseNode) {
-            var arrayParseNode = (ArrayParseNode) expressionNodes;
+        if (expressionNodes instanceof ArrayParseNode arrayParseNode) {
             if (arrayParseNode.size() != 1) {
                 throw CompilerDirectives.shouldNotReachHere();
             }

Original file line number	Diff line number	Diff line change
`@@ -58,8 +58,7 @@ public InParseNode(`
`58`	`58`	`ParseNode nextCase) {`
`59`	`59`	`super(position);`
`60`	`60`
`61`		`- if (expressionNodes instanceof ArrayParseNode) {`
`62`		`- var arrayParseNode = (ArrayParseNode) expressionNodes;`
	`61`	`+ if (expressionNodes instanceof ArrayParseNode arrayParseNode) {`
`63`	`62`	`if (arrayParseNode.size() != 1) {`
`64`	`63`	`throw CompilerDirectives.shouldNotReachHere();`
`65`	`64`	`}`