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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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6
runtime/native/core.ludic
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@ -522,7 +522,7 @@ function rt_running() -> bool {
if is_windowed() {
return win_running()
}
return rt_alive
return rt_alive != 0
}
# ---- writing the frame out ------------------------------------------------
@ -792,7 +792,7 @@ function rt_status_text() -> pointer {
# only it knows their shape. Everything below belongs to the runtime, so the
# runtime writes it — same order both ways.
function rt_save_state(f: pointer) -> void {
let w: words = bytes(16)
let w: words = words(4)
w[0] = rt_rng
w[1] = rt_mapw
w[2] = rt_maph
@ -805,7 +805,7 @@ function rt_save_state(f: pointer) -> void {
}
function rt_load_state(f: pointer) -> void {
let w: words = bytes(16)
let w: words = words(4)
file_read(f, w, 16)
rt_rng = w[0]
rt_mapw = w[1]