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feat(lang): L7 memory is safe unless it says unsafe

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The typed buffers are slices: words/floats/fixeds/doubles/pointers(n) make
zeroed, bounds-checked []int/[]float/... and the type names mean them. buffer(n)
is a []byte, with text_of, Fs.read_bytes/write_bytes and view(xs, start, n).
bytes(), indexing a raw pointer or bytes, free, resize, Memory.*, raw file calls,
data_of and C externs are refused outside unsafe { } / unsafe function, and a
project's own files may write unsafe only with --unsafe; the runtime and packages
are the platform. A slice passed to an extern goes as its data.

What the change found: Sync's atomics on a slice header, words(n) uninitialised,
input's fixed axes in ints, truetype's fixed outlines as ints, skin matrices
typed int, gl_shader's source table made from raw bytes. render3d gets safe
entry points (safe_api.ludic). Rendering is byte-identical; a frame costs the same.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
Orkun ÇAKILKAYA 2026-09-24 12:53:27 +03:00
parent 9259808f80
commit b0b0b62bce
70 changed files with 69189 additions and 64569 deletions
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2
selfhost/backend/emit_stmt.ludic
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@ -146,6 +146,7 @@ function block_ends(b: Node) -> bool {
}
function stmt_ends(st: Node) -> bool {
if st.kind == S_RETURN { return true }
if st.kind == S_UNSAFE { return block_ends(st.a) }
if st.kind == S_IF {
if st.c == null or not block_ends(st.b) { return false }
if st.c.kind == S_IF { return stmt_ends(st.c) }
@ -377,6 +378,7 @@ function emit_stmt(st: Node) -> void {
if st.kind == S_SPAWN { let se = emit_spawn(st); return }
if st.kind == S_DESPAWN { emit_despawn(st); return }
if st.kind == S_TOGGLE { emit_toggle(st); return }
if st.kind == S_UNSAFE { emit_block(st.a); return }
if st.kind == S_ATTACH { emit_attach(st); return }
if st.kind == S_DETACH { emit_detach(st); return }
if st.kind == S_EMIT { let v = emit_emit(st); return } # statement form: discard the flag