MDS/openide
1
0
Fork 0
mirror of https://gitflic.ru/project/openide/openide.git synced 2026-04-30 10:20:15 +07:00
Code Issues Packages Projects Releases Wiki Activity

java: dedicated switch expressions test

Browse Source 
make tests on preview features disconnected from language level to make them evolve easily

GitOrigin-RevId: f87bbf684355bce7ae97711a0fc9b5861d58f775
This commit is contained in:
Anna Kozlova
2019-06-19 21:47:42 +02:00
committed by intellij-monorepo-bot
parent 594e81ebd7
commit 89fa4186d6
10 changed files with 3 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

121
java/java-tests/testData/codeInsight/daemonCodeAnalyzer/switchExpressions/SimpleInferenceCases.java Normal file
View File

@@ -0,0 +1,121 @@
import java.util.function.*;
class MyTest {
<T> T foo(T t) {
return t;
}
<T> T foo(Supplier<T> t) {
return t.get();
}
<T> T foo(IntSupplier t) {
return null;
}
static <K> K bar() {
return null;
}
void m(int i) {
String s = foo(switch (i) {default -> "str";});
String s1 = <error descr="Incompatible types. Required String but 'foo' was inferred to T:
no instance(s) of type variable(s) exist so that Object conforms to String">foo(switch (i) {case 1 -> new Object(); default -> "str";});</error>
String s2 = foo(() -> switch (i) {
default -> "str";
});
String s3 = foo(() -> switch (i) {default -> bar();});
String s4 = foo(() -> switch (i) {default -> { break bar();}});
String s5 = foo(<error descr="Incompatible types. Required String but 'foo' was inferred to T:
no instance(s) of type variable(s) exist so that Integer conforms to String">() -> switch (i) {default -> { break 1;}}</error>);
String s6 = switch (i) {
case 1 -> <error descr="Bad type in switch expression: int cannot be converted to java.lang.String">2</error>;
default -> {
break <error descr="Bad type in switch expression: int cannot be converted to java.lang.String">1</error>;
}
};
Supplier<String> stringSupplier = switch (i) {
default -> {
break () -> <error descr="Bad return type in lambda expression: int cannot be converted to String">1</error>;
}
};
String s7 = switch (i) {
case 1: {
break <error descr="Bad type in switch expression: int cannot be converted to java.lang.String">1</error>;
}
default: {
int i1 = switch (0) {
default -> {
break 1;
}
};
break "";
}
};
}
void switchChain(final int i) {
String s = switch (i) {
default -> switch (0) {
default -> {
break <error descr="Bad type in switch expression: int cannot be converted to java.lang.String">1</error>;
}
};
};
String s1 = switch (i) {
default -> {
break switch (0) {
default -> {
break <error descr="Bad type in switch expression: int cannot be converted to java.lang.String">1</error>;
}
};
}
};
String s2 = switch (i) {
default: {
break switch (0) {
default -> {
break <error descr="Bad type in switch expression: int cannot be converted to java.lang.String">1</error>;
}
};
}
};
String s3 = switch (0) {
default: {
break switch (1) {
case 2: {
System.out.println();
int inside_switch = switch (8) {
default:
break 1;
};
}
case 1:
if (i > 3) break <error descr="Bad type in switch expression: int cannot be converted to java.lang.String">3</error>;
case 0:
try {
break <error descr="Bad type in switch expression: int cannot be converted to java.lang.String">42</error>;
} finally {
//do nothing
}
default:
break <error descr="Bad type in switch expression: int cannot be converted to java.lang.String">1</error>;
};
}
};
Runnable r = () -> <error descr="Target type for switch expression cannot be void">switch</error>(0) {
default -> throw new IllegalArgumentException();
};
}
static void test(boolean b, int i) {
Class<?> c = (b ?
switch (i) {
case 1 -> true;
default -> 0;
} : 1).getClass();
System.out.println(c.getCanonicalName());
}
}