EmptyForInitializerPad
Since Checkstyle 3.4
Description
Checks the padding of an empty for initializer; that is whether
a white space is required at an empty for initializer, or such white
space is forbidden. No check occurs if there is a line wrap at the
initializer, as in
for (
; i < j; i++, j--)
Properties
| name | description | type | default value | since |
|---|---|---|---|---|
| option | Specify policy on how to pad an empty for iterator. | PadOption | nospace |
3.4 |
Examples
To configure the check:
<module name="Checker">
<module name="TreeWalker">
<module name="EmptyForInitializerPad"/>
</module>
</module>
Example:
class Example1 {
int i = 0;
void example() {
for ( ; i < 1; i++ ); // violation '';' is preceded with whitespace'
for (; i < 2; i++ );
for (;i<2;i++);
for ( ;i<2;i++); // violation '';' is preceded with whitespace'
for (
; i < 2; i++ );
}
}
To configure the check to require white space at an empty for iterator:
<module name="Checker">
<module name="TreeWalker">
<module name="EmptyForInitializerPad">
<property name="option" value="space"/>
</module>
</module>
</module>
Example:
class Example2 {
int i = 0;
void example() {
for ( ; i < 2; i++ ) { };
for (; i < 2; i++ ) { }; // violation '';' is not preceded with whitespace'
for (;i<2;i++) { }; // violation '';' is not preceded with whitespace'
for ( ;i<2;i++) { };
for (
; i < 2; i++ );
}
}
Example of Usage
Violation Messages
All messages can be customized if the default message doesn't suit you. Please see the documentation to learn how to.
Package
com.puppycrawl.tools.checkstyle.checks.whitespace