DuplicateCaseStatement.md

Pattern: Duplicate case statement

Issue: -

Description

Checks for duplicate case statements in a switch block, such as two equal integers or strings. Here are some examples of code that produces violations:

switch( 0 ) {
    case 1: break;
    case 2: break;
    case 2: break;          // violation
}

switch( "test" ) {
    case "$a": break;
    case "$a": break;       // ok; only flags constant values (not GStrings)
    case "ab": break;
    case "ab": break;       // violation
    case "abc": break;
}

Further Reading

• CodeNarc - DuplicateCaseStatement