author | darcy |
Thu, 13 Dec 2018 19:06:11 +0100 | |
changeset 53023 | 6879069d9d94 |
parent 51563 | de411d537aae |
child 53878 | 4584d0331318 |
permissions | -rw-r--r-- |
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/* |
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* @test /nodynamiccopyright/ |
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* @bug 8206986 |
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* @summary Check types inferred for switch expressions. |
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* @compile/fail/ref=ExpressionSwitchInfer.out -XDrawDiagnostics --enable-preview -source 13 ExpressionSwitchInfer.java |
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*/ |
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import java.util.ArrayList; |
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import java.util.List; |
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public class ExpressionSwitchInfer { |
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private static final String NULL = "null"; |
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private <T> T test(List<T> l, Class<T> c, String param) { |
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test(param == NULL ? new ArrayList<>() : new ArrayList<>(), CharSequence.class, param).charAt(0); |
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test(param == NULL ? new ArrayList<>() : new ArrayList<>(), CharSequence.class, param).substring(0); |
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test(switch (param) { |
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case NULL -> new ArrayList<>(); |
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default -> new ArrayList<>(); |
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}, CharSequence.class, param).charAt(0); |
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test(switch (param) { |
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case NULL -> new ArrayList<>(); |
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default -> new ArrayList<>(); |
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}, CharSequence.class, param).substring(0); |
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String str = switch (param) { |
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case "" -> { |
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break 0; |
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} default ->"default"; |
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}; |
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return null; |
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} |
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} |