ludic/selfhost/tests/match_bits.ludic
Orkuncakilkaya 86948d2b19 Phase 7k: bytes(n) / words(n) allocators (retire mem_alloc)
Allocation reads as intent, not malloc:

  mem_alloc(64)          -> bytes(64)              (64 bytes -> a byte buffer)
  mem_alloc(w * h * 4)   -> words(w * h)           (w*h 32-bit words)

bytes(n) mallocs n bytes and returns a plain pointer (byte-indexed); words(n)
mallocs n*4 bytes and returns a `words` pointer (int-indexed). Since words(X) and
mem_alloc(X*4) allocate the identical number of bytes, the migration cannot change
any allocation size — the `* 4` factor just moves from the argument into the
allocator name, pairing naturally with the Phase-7j `words` retyping
(`var fb: words = words(w * h)`).

Migrated 102 sites (mem_alloc(E*4) -> words(E), else bytes(E)); deleted the
mem_alloc intrinsic. mem_realloc/free/copy/set stay as the low-level
reallocation/free family. Reseeded (22565 lines); C-free fixpoint holds; goldens
byte-identical; 18/18; vocab + doc-fences clean.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-08-28 02:26:15 +03:00

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406 B
Text

program T {
fn classify(c: int) -> int {
match c { 65, 66 => { return 1 }; 67 => { return 2 }; _ => { return 9 } }
return 0
}
entry {
print(classify(65)) # 1
print(classify(67)) # 2
print(classify(90)) # 9
print((1 << 4)) # 16
print(((4 | 1) & 6)) # 4
let p = bytes(16)
p[1] = 9999
print(p[1]) # 9999
}
}