Conditional expression with negated condition
Reports conditional expressions whose conditions are negated.
Flipping the order of the conditional expression branches usually increases the clarity of such statements.
- 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.
ConditionalExpressionWithNegatedCondition
Use the Ignore '!= null' comparisons and Ignore '!= 0' comparisons options to ignore comparisons of the form obj != null
or num != 0
. Since obj != null
effectively means "obj exists", the meaning of the whole expression does not involve any negation and is therefore easy to understand.
The same reasoning applies to num != 0
expressions, especially when using bit masks.
These forms have the added benefit of mentioning the interesting case first. In most cases, the value for the == null
branch is null
itself, like in the following examples:
static String getName(Person p) {
return p != null ? p.getName() : null;
}
static String getExecutableString(int fileMode) {
return (fileMode & 0b001001001) != 0 ? "executable" : "non-executable";
}
Here you can find the description of settings available for the Conditional expression with negated condition inspection, and the reference of their default values.
Inspection Details | |
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By default bundled with: | |
Can be installed with plugin: | Java, 243.23126 |
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