virtual This block(Block x)

abstract This breakStmt(BreakStmt x)

abstract This continueStmt(ContinueStmt x)

abstract This exprStmt(ExprStmt x)

abstract This forStmt(ForStmt x)

abstract This ifStmt(IfStmt x)

abstract This localDefStmt(LocalDefStmt x)

abstract This returnStmt(ReturnStmt x)

virtual This stmt(Stmt x)

abstract This switchStmt(SwitchStmt x)

abstract This throwStmt(ThrowStmt x)

abstract This tryStmt(TryStmt x)

abstract This whileStmt(WhileStmt x)