Java
Common subexpression can be extracted from 'switch'
Info
New
Last modified: 03 December 2024 Reports switch expressions and statements where every branch has a common subexpression, and the switch
can be moved inside. This action shortens the code. In many cases, it's reasonable to extract the resulting switch expression to a separate variable or method.
Example:
switch (value) {
case 0 -> System.out.println("zero");
case 1 -> System.out.println("one");
case 2, 3, 4 -> System.out.println("few");
default -> System.out.println("many");
}
After the quick-fix is applied:
System.out.println(switch (value) {
case 0 -> "zero";
case 1 -> "one";
case 2, 3, 4 -> "few";
default -> "many";
});
- By ID
Can be used to locate inspection in e.g. Qodana configuration files, where you can quickly enable or disable it, or adjust its settings.
SwitchExpressionCanBePushedDown
This inspection is applicable only for enhanced switches with arrow syntax.
This inspection depends on the Java feature ''switch' expressions', which is available since Java 14.
New in 2022.3
Inspection Details | |
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By default bundled with: | |
Can be installed with plugin: | Java, 243.23126 |
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