ASTStatementSwitch class

ASTStatement for switch (exp) { case v: ... break; default: ... }.

With fallThrough (the default, C-style switch): once a case matches, its block and the blocks of the following clauses run in order until a break (or return). With fallThrough false (e.g. Kotlin when, Python match): only the matched clause runs — there is no fall-through and break is implicit. If no case matches, the default clause (if present) runs.