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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
examples/rendering/vk_probe.ludic
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@ -16,11 +16,11 @@ program VkProbe {
const API_1_0: int = 4194304 # VK_MAKE_API_VERSION(0, 1, 0, 0)
function api_text(v: int) -> string { return `{(v >> 22) & 127}.{(v >> 12) & 1023}.{v & 4095}` }
function yes(b: bool) -> string { if b { return "yes" }; return "no " }
unsafe function api_text(v: int) -> string { return `{(v >> 22) & 127}.{(v >> 12) & 1023}.{v & 4095}` }
unsafe function yes(b: bool) -> string { if b { return "yes" }; return "no " }
# a name in an array of VkExtensionProperties
function has_ext(props: bytes, n: int, want: string) -> bool {
unsafe function has_ext(props: bytes, n: int, want: string) -> bool {
for i in 0 .. n {
let at = vk_at(props, i * VkExtensionProperties_sizeof + VkExtensionProperties_extensionName)
if string(at) == want { return true }