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migrate to sx cstring era: std env() replaces local getenv/strlen, alloc_string rename

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sx 1d17b0a reserves 'cstring' as the C-boundary string type and renames
std's cstring(size) allocator to alloc_string; std getenv is now
(cstring) -> ?cstring, so the local conflicting binding (caught by the
new same-symbol diagnostic) and its strlen/copy loop collapse into a
process.env delegation. iOS-sim build + 22/22 snapshots green.
This commit is contained in:
swipelab
2026-06-12 14:57:59 +03:00
parent bb728d0ab0
commit 39740a1d36
2 changed files with 3 additions and 12 deletions
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4
board.sx
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@@ -202,7 +202,7 @@ pick_gem :: (board: *Board, rng: *Rng, col: i64, row: i64) -> Gem {
// single gem character per cell. Suitable for snapshotting.
board_dump :: (self: *Board) -> string {
line_w := BOARD_COLS + 1; // 8 gem chars + newline
buf := cstring(BOARD_ROWS * line_w);
buf := alloc_string(BOARD_ROWS * line_w);
for 0..BOARD_ROWS (row) {
base := row * line_w;
for 0..BOARD_COLS (col) {
@@ -298,7 +298,7 @@ find_matches :: (b: *Board) -> MatchMask {
// unambiguously as the empty set. Suitable for snapshotting.
dump_matches :: (b: *Board, m: *MatchMask) -> string {
line_w := BOARD_COLS + 1; // 8 cells + newline
buf := cstring(BOARD_ROWS * line_w);
buf := alloc_string(BOARD_ROWS * line_w);
for 0..BOARD_ROWS (row) {
base := row * line_w;
for 0..BOARD_COLS (col) {

11
main.sx
View File

@@ -24,8 +24,6 @@
// libc is the implicit foreign-library handle the std allocators bind against;
// reused here to read the deterministic-capture environment variables at startup.
getenv :: (name: [:0]u8) -> *u8 #foreign libc "getenv";
strlen :: (s: *u8) -> usize #foreign libc "strlen";
// Fixed seed for the rendered board — the same seed tests/board_init.sx locks
// as a snapshot, so the on-screen layout matches that golden gem-for-gem.
@@ -116,14 +114,7 @@ build_ui :: () -> View {
// M3TE_SELECT=<cellIndex 0..63> forces a selection so the select-pop reaction can
// be captured without injecting a tap. Absent → normal live behaviour.
read_env :: (name: [:0]u8) -> ?string {
p := getenv(name);
addr : i64 = xx p;
if addr == 0 { return null; }
n := cast(i64) strlen(p);
if n == 0 { return ""; }
buf := cstring(n);
memcpy(buf.ptr, xx p, n);
buf
process.env(name)
}
// Digit arithmetic runs entirely in i64; the result converts to f32 only once at