b3b644438e
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
53 lines
1.9 KiB
Java
53 lines
1.9 KiB
Java
/*
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* @test /nodynamiccopyright/
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* @bug 8206986
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* @summary Check behavior for invalid breaks.
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* @compile/fail/ref=ExpressionSwitchBreaks2.out -XDrawDiagnostics --enable-preview -source 12 ExpressionSwitchBreaks2.java
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*/
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public class ExpressionSwitchBreaks2 {
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private String print(int i, int j) {
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LOOP: while (true) {
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OUTER: switch (i) {
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case 0:
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return switch (j) {
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case 0:
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break "0-0";
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case 1:
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break ; //error: missing value
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case 2:
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break OUTER; //error: jumping outside of the switch expression
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case 3: {
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int x = -1;
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x: switch (i + j) {
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case 0: break x; //error: cannot disambiguate, wrong type as well
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}
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break "X";
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}
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case 4: return "X"; //error: no returns from inside of the switch expression
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case 5: continue; //error: no continue out of the switch expression
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case 6: continue LOOP; //error: dtto, but with a label
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case 7: continue UNKNOWN; //error: unknown label
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default: {
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String x = "X";
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x: switch (i + j) {
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case 0: break ""; //error: cannot break from switch expression that is not immediatelly enclosing
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}
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break "X";
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}
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};
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case 1:
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break "1" + undef; //error: complex value and no switch expression
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}
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}
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j: print(switch (i) {
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default: break j; //error: "j" is ambiguous (expression/label)
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}, 0);
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j2: print(switch (i) {
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default: break j2;
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}, 0);
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return null;
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}
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}
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