66bdc70bf1
Move examples/*.sx and their expected/ snapshots into per-category subfolders (examples/<category>/...). Folder = leading filename token, with ffi-objc/ffi-jni kept whole; filenames are unchanged. The corpus runner and LSP sweep now discover each category's expected/ dir, while issues/ stays flat. Example 1058's repo-root-relative companion import is made file-relative. Path strings embedded in 164 snapshots were regenerated (path-only changes). Test-layout docs in CLAUDE.md updated.
18 lines
711 B
Plaintext
18 lines
711 B
Plaintext
// B1.2 — cancellation rides the `!` error channel (model (a)). `f.cancel()`
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// sets the per-future cancel flag + marks `state = .canceled`, so a
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// subsequent `f.await()` raises `error.Canceled` out of its value-failable
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// `($R, !IoErr)` — caught here with `or`. A future that is NOT canceled
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// awaits its value normally.
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#import "modules/std.sx";
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main :: () {
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// Not canceled → await yields the value.
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ok := context.io.async((n: i64) -> i64 => n, 7);
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print("ok: {}\n", ok.await() or { -1 });
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// Canceled → await raises .Canceled → the `or` default is taken.
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c := context.io.async((n: i64) -> i64 => n, 7);
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c.cancel();
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print("canceled: {}\n", c.await() or { -99 });
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}
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