43 lines
1.1 KiB
Java
43 lines
1.1 KiB
Java
/**
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* @test /nodynamiccopyright/
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* @bug 8314578
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* @enablePreview
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* @summary Parsing of erroneous patterns succeeds
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* @compile/fail/ref=T8314578.out -XDrawDiagnostics T8314578.java
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*/
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public class T8314578 {
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record R1() {}
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record R2() {}
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static void test(Object o) {
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switch (o) {
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case R1() when o instanceof String s:
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case R2() when o instanceof Integer i:
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System.out.println("hello: " + i);
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break;
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default:
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break;
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}
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}
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static void test2(Object o) {
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switch (o) {
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case R1() when o instanceof String s:
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System.out.println("hello: " + s);
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case R2() when o instanceof Integer i:
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System.out.println("hello: " + i);
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break;
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default:
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break;
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}
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}
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static int unnamedInGuardsOK(String s) {
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return switch (s) {
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case String _ when s instanceof String _ -> // should be OK
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1;
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default ->
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-1;
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};
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}
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} |