Files
openide/java/java-tests/testData/codeInsight/daemonCodeAnalyzer/switchExpressions/SwitchExpressionHasResult.java
Tagir Valeev b3ba7b6783 IDEA-239116 Switch expression without any results is not highlighted as erroneous
GitOrigin-RevId: 66580d3aa4a95e1fdb32b1a3131544560c9c432a
2020-04-29 10:51:14 +00:00

149 lines
3.7 KiB
Java

class C {
void defaultBranchHasNoResult(int n) {
String s = <error descr="Switch expression should produce result in all execution paths">switch</error> (n) {
default:
};
}
void defaultRuleHasNoResult(int n) {
String s = switch (n) {
<error descr="Switch expression rule should produce result in all execution paths">default</error> -> {}
};
}
void defaultBranchSometimesHasNoResult(int n, boolean b) {
String s = <error descr="Switch expression should produce result in all execution paths">switch</error> (n) {
default: {
if (b) yield "";
}
};
}
void defaultRuleSometimesHasNoResult(int n, boolean b) {
String s = switch (n) {
<error descr="Switch expression rule should produce result in all execution paths">default</error> -> {
if (b) yield "";
}
};
}
void defaultBranchAlwaysThrows(int n) {
String s = <error descr="Switch expression does not have any result expressions">switch</error> (n) {
default: throw new RuntimeException();
};
}
void defaultRuleAlwaysThrows(int n) {
String s = <error descr="Switch expression does not have any result expressions">switch</error> (n) {
default -> throw new RuntimeException();
};
}
void defaultBranchSometimesThrows(int n, boolean b) {
String s = switch (n) {
default:
if (b) throw new RuntimeException();
yield "";
};
}
void defaultRuleSometimesThrows(int n, boolean b) {
String s = switch (n) {
default -> {
if (b) throw new RuntimeException();
yield "";
}
};
}
void defaultBranchHasManyResults(int n, int k) {
String s = switch (n) {
default: {
if (k < n) yield "a";
if (k > n) yield "b";
yield "c";
}
};
}
void defaultRuleHasManyResults(int n, int k) {
String s = switch (n) {
default -> {
if (k < n) yield "a";
if (k > n) yield "b";
yield "c";
}
};
}
void oneOfBranchesHasNoResult(int n) {
String s = <error descr="Switch expression should produce result in all execution paths">switch</error> (n) {
case 0: yield "";
default:
};
}
void oneOfRulesHasNoResult(int n) {
String s = switch (n) {
case 0 -> "";
<error descr="Switch expression rule should produce result in all execution paths">default</error> -> {
}
};
}
void allBranchesHaveNoResult(int n) {
String s = <error descr="Switch expression should produce result in all execution paths">switch</error> (n) {
case 0:
default:
};
}
void allRulesHaveNoResult(int n) {
String s = switch (n) {
<error descr="Switch expression rule should produce result in all execution paths">case</error> 0 -> {
}
<error descr="Switch expression rule should produce result in all execution paths">default</error> -> {
}
};
}
void allBranchesDoHaveResult(int n) {
String s = switch (n) {
case -1: throw new RuntimeException();
case 0: yield "a";
default: yield "b";
};
}
void allRulesDoHaveResult(int n) {
String s = switch (n) {
case -1 -> throw new RuntimeException();
case 0 -> "a";
default -> "b";
};
}
void allBranchesDoHaveResultInFinally(int n) {
String s;
try {
} finally {
s = switch (n) {
case -1: throw new RuntimeException();
case 0: yield "a";
default: yield "b";
};
}
}
void allRulesDoHaveResultInFinally(int n) {
String s;
try {
} finally {
s = switch (n) {
case -1 -> throw new RuntimeException();
case 0 -> "a";
default -> "b";
};
}
}
}