svoid tok_swapStatement(LS tok) {
  jreplace_dyn(tok, "swap <id> <id>, <id>;", (_tok, cIdx) -> {
    S var = makeVar(), type = tok.get(cIdx+2),
      v1 = tok.get(cIdx+4), v2 = tok.get(cIdx+8);
    ret "{ \*type*/ \*var*/ = \*v1*/; \*v1*/ = \*v2*/; \*v2*/ = \*var*/; }";
  });
}