4e942b5373
Rename all example tests/companions to the XXXX-category-test-name scheme (per-category 100-blocks: basic 0010, types 0100, ... errors 1000, diagnostics 1100, ffi 1200, ffi-objc 1300, ffi-jni 1400, vectors 1500, platform 1600). Companions and dir/C fixtures move in lockstep with their parent test; #import/#source/#include paths rewritten to match. Expected output now lives in examples/expected/ (a sibling dir of the tests) split into three streams per the new convention: <name>.exit / <name>.stdout / <name>.stderr (+ optional <name>.ir) run_examples.sh rewritten: scans examples/ and issues/ for an expected/<name>.exit marker, captures stdout and stderr separately (no more 2>&1), compares each stream + exit + optional IR snapshot. Behavior validated unchanged: every renamed test reproduces its prior merged output + exit (diffs limited to file paths/basenames embedded in diagnostics + traces, which correctly reflect the new names). Suite: 292 passed, 0 failed. 50-smoke.sx split + issue relocation + docs follow in subsequent commits.
43 lines
1.4 KiB
Plaintext
43 lines
1.4 KiB
Plaintext
// `onfail` — cleanup that runs only when an error LEAVES the enclosing block
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// (ERR step E1.7). Unlike `defer` (which runs on every exit), `onfail` fires
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// on an error exit — a `raise` or a propagating `try` — and is skipped on
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// success. On an error exit `defer` and `onfail` run interleaved in reverse
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// declaration order. `onfail e { … }` binds the in-flight error tag.
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// (Per-attempt-`try` gating and `or`-chain absorption refine this in E2.4b.)
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#import "modules/std.sx";
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E :: error { Bad }
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inner :: (n: s32) -> !E {
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if n < 0 { raise error.Bad; }
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return;
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}
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// defer + onfail interleave on the error path; only defers on success.
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run :: (n: s32) -> !E {
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defer print("defer A\n");
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onfail print("onfail B\n");
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defer print("defer C\n");
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try inner(n); // n<0 → propagates → onfail fires
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return;
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}
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// `onfail e` binds the tag.
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classify :: (n: s32) -> !E {
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onfail e { if e == error.Bad { print("cleanup: bad\n"); } }
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if n < 0 { raise error.Bad; }
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return;
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}
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main :: () -> s32 {
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print("[fail]\n");
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a := run(-1); // error → defer C, onfail B, defer A
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print("[ok]\n");
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b := run(7); // success → defer C, defer A (no onfail)
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print("[bound]\n");
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c := classify(-1); // onfail binding sees Bad
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print("[done]\n");
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return 0;
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}
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