{
  "schema": "ailang/v0",
  "name": "int_to_str_drop_rc",
  "imports": [],
  "defs": [
    {
      "kind": "fn",
      "name": "main",
      "type": {
        "k": "fn",
        "params": [],
        "ret": { "k": "con", "name": "Unit" },
        "effects": ["IO"]
      },
      "params": [],
      "doc": "Iter hs.4: pin that `int_to_str` participates in RC discipline. Bind the heap-Str result to `s`, consume `s` once in `io/print_str`, let the binder drop at scope close. Under --alloc=rc with AILANG_RC_STATS=1 the atexit summary must report allocs == frees && live == 0 — the heap-Str slab allocated by str_alloc inside ailang_int_to_str rides the same rc_header + ailang_rc_dec path as any other RC value.",
      "body": {
        "t": "let",
        "name": "s",
        "value": {
          "t": "app",
          "fn": { "t": "var", "name": "int_to_str" },
          "args": [{ "t": "lit", "lit": { "kind": "int", "value": 42 } }]
        },
        "body": {
          "t": "do",
          "op": "io/print_str",
          "args": [{ "t": "var", "name": "s" }]
        }
      }
    }
  ]
}