Add Check Support for Java 21 Record Pattern Syntax: IllegalToken #15294
Description
child of #14890
I have read check documentation: https://checkstyle.org/checks/coding/illegaltoken.html
I have downloaded the latest checkstyle from: https://checkstyle.org/cmdline.html#Download_and_Run
I have executed the cli and showed it below, as cli describes the problem better than 1,000 words
PS D:\CS\test> javac src/Test.java
PS D:\CS\test> cat config.xml
<?xml version="1.0"?>
<!DOCTYPE module PUBLIC
"-//Checkstyle//DTD Checkstyle Configuration 1.3//EN"
"https://checkstyle.org/dtds/configuration_1_3.dtd">
<module name="Checker">
<module name="TreeWalker">
<module name="IllegalToken">
<property name="tokens" value="RECORD_PATTERN_DEF"/>
</module>
</module>
</module>
PS D:\CS\test> cat src/Test.java
public class Test {
void test(Object o) {
switch (o) {
case R(int x) when x == 5 -> {} // violation
default -> {}
}
}
record R(int x) {}
}
PS D:\CS\test> java -jar checkstyle-10.17.0-all.jar -c config.xml src/Test.java
Starting audit...
[ERROR] D:\CS\test\src\Test.java:4:18: Using 'RECORD_PATTERN_DEF' is not allowed. [IllegalToken]
Audit done.
Checkstyle ends with 1 errors.
Describe what you expect in detail.
I expected the check to work for any token and it works correctly. no update is needed for this check