{
  "schema": "ailang/v0",
  "name": "int_to_str_smoke",
  "imports": [],
  "defs": [
    {
      "kind": "fn",
      "name": "main",
      "type": {
        "k": "fn",
        "params": [],
        "ret": { "k": "con", "name": "Unit" },
        "effects": ["IO"]
      },
      "params": [],
      "doc": "Iter hs.4: smoke pin for the int_to_str heap-Str builtin. `do io/print_str(int_to_str(42))` builds through the whole pipeline (checker resolves int_to_str:(Int)->Str, codegen lowers to call ptr @ailang_int_to_str(i64 42), runtime/str.c's ailang_int_to_str snprintfs into a heap-Str slab, io/print_str's @puts prints from the bytes pointer at offset 8). Single-value smoke; the spec's broader edge-case sweep (0, -1, i64::MAX, i64::MIN) is deferred to a follow-up tidy iter per the hs.4 plan.",
      "body": {
        "t": "do",
        "op": "io/print_str",
        "args": [
          {
            "t": "app",
            "fn": { "t": "var", "name": "int_to_str" },
            "args": [{ "t": "lit", "lit": { "kind": "int", "value": 42 } }]
          }
        ]
      }
    }
  ]
}