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Phase 7k: bytes(n) / words(n) allocators (retire mem_alloc)

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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>
This commit is contained in:
Orkun ÇAKILKAYA 2026-08-28 02:26:15 +03:00
parent 5cab68ea2e
commit 86948d2b19
22 changed files with 3118 additions and 3069 deletions
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4
selfhost/parse.ludic
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@ -35,7 +35,7 @@ fn ptype() -> ptr {
pi = pi + 1
eat_op("]")
let el = ptype()
let out = mem_alloc(len(el) + 3)
let out = bytes(len(el) + 3)
out[0] = 91; out[1] = 93 # "[]"
var i = 0
while el[i] != 0 { out[2 + i] = el[i]; i = i + 1 }
@ -75,7 +75,7 @@ fn parse_hole(inner: ptr) -> Node { # re-lex+parse an embedded exp
fn parse_interp(raw: ptr) -> Node {
let n = len(raw)
var acc: Node = null
let lit = mem_alloc(n + 1)
let lit = bytes(n + 1)
var lj = 0
var i = 0
while i < n {