jdk-24/test/langtools/tools/javac/patterns/DuplicateBindingTest.java

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/*
* @test /nodynamiccopyright/
* @bug 8231827
* @summary Basic pattern bindings scope test
* @compile/fail/ref=DuplicateBindingTest.out -XDrawDiagnostics --enable-preview -source ${jdk.version} DuplicateBindingTest.java
*/
public class DuplicateBindingTest {
int f;
public static void main(String[] args) {
if (args != null) {
int s;
if (args[0] instanceof String s) { // NOT OK. Redef same scope.
}
if (args[0] instanceof String f) { // OK to redef field.
}
}
}
}