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8206986: Compiler support for Switch Expressions (Preview)

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8207405: Compiler Tree API support for Switch Expressions (Preview)

Support for switch expression, switch with rules and multiple constants for cases.

Reviewed-by: jjg, mcimadamore, vromero
This commit is contained in:
Jan Lahoda 2018-08-29 09:36:17 +02:00
parent 3f4b55c4df
commit b3b644438e
121 changed files with 4753 additions and 268 deletions
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24
test/langtools/tools/javac/lambda/BadSwitchExpressionLambda.java Normal file
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/*
* @test /nodynamiccopyright/
* @bug 8206986
* @summary Adding switch expressions
* @compile/fail/ref=BadSwitchExpressionLambda.out -XDrawDiagnostics --enable-preview -source 12 BadSwitchExpressionLambda.java
*/
class BadSwitchExpressionLambda {
interface SAM {
void invoke();
}
public static void m() {}
public static void r(SAM sam) {}
void test(int i) {
SAM sam1 = () -> m(); //ok
SAM sam2 = () -> switch (i) { case 0 -> m(); default -> m(); }; //not ok
r(() -> m()); //ok
r(() -> switch (i) { case 0 -> m(); default -> m(); }); //not ok
return switch (i) { case 0 -> m(); default -> m(); }; //not ok
}
}