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test/langtools/tools/javac/patterns/InstanceofTotalPattern.java
28 строк
905 B
Jan Lahoda
8300543: Compiler Implementation for Pattern Matching for switch
22 май 2023, 07:24
22 май 2023, 07:24
eaa80ad
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/* * @test /nodynamiccopyright/ * @summary Verify behavior of total patterns in instanceof * @compile/fail/ref=InstanceofTotalPattern-15.out --release 15 -XDrawDiagnostics InstanceofTotalPattern.java * @compile/fail/ref=InstanceofTotalPattern-16.out --release 16 -XDrawDiagnostics InstanceofTotalPattern.java * @compile/fail/ref=InstanceofTotalPattern-20.out --release 20 -XDrawDiagnostics InstanceofTotalPattern.java * @compile InstanceofTotalPattern.java * @run main InstanceofTotalPattern */ public class InstanceofTotalPattern { public static void main(String[] args) { new InstanceofTotalPattern().totalTest(); } void totalTest() { String str = ""; if (!(str instanceof String s1)) { throw new AssertionError(); } str = null; if (str instanceof String s2) { throw new AssertionError(); } } }