d8076b9333
Surface rename of the signed integer family: s1..s64 become i1..i64
(u1..u64, usize, isize unchanged). 'string' keeps the s-prefix arm in
name classification; width parsing moves to the i-prefix arm next to
isize.
Internal TypeId tags follow the surface (.s8/.s16/.s32/.s64 ->
.i8/.i16/.i32/.i64), as do mono-key mangle fragments (ptr_i64,
tu_i64_bool) and all display/diagnostic formatting (i{d}).
Migrated in the same sweep: stdlib + examples + issue repros + FFI C
companions (shared symbol names like ffi_id_i64), expected
stdout/stderr/ir snapshots, specs.md, readme.md, CLAUDE.md/AGENTS.md,
implementation_plan.md, docs/, issue writeups. Vendored stb_image and
historical flow state left untouched.
zig build test: 426/426; examples suite: 595/595.
40 lines
1.7 KiB
Plaintext
40 lines
1.7 KiB
Plaintext
// Failable `or` chains (ERR step E2.4b). `lhs or rhs` with failable operands
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// is a left-to-right, short-circuit chain: each failing attempt routes to the
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// next operand; the chain resolves when an operand succeeds (or a value
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// terminator absorbs). `try` marks an operand whose failure is visible routing
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// (path-marker rule); a bare failable operand is allowed when a downstream
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// terminator absorbs it. A `catch` over a parenthesized chain redirects the
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// chain's total failure to the handler instead of the function. Absorbed
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// failures clear the trace buffer; `onfail` does not fire for a failure that
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// never leaves its block. This run takes only absorbed paths → exit 120.
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#import "modules/std.sx";
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E :: error { A, B };
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fa :: (n: i32) -> (i32, !E) {
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if n == 0 { raise error.A; }
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if n < 0 { raise error.B; }
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return n;
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}
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fv :: (n: i32) -> !E { // void (pure) failable
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if n == 0 { raise error.A; }
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return;
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}
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main :: () -> (i32, !E) {
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onfail print("onfail fired (BUG)\n"); // must NOT fire — every chain below absorbs
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r : i32 = 0;
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r = r + (try fa(0) or try fa(7)); // a fails → b succeeds → 7
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r = r + (try fa(0) or try fa(0) or try fa(3)); // first two fail → third → +3 = 10
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r = r + (fa(0) or fa(0) or 96); // bare chain + value terminator → +96 = 106
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r = r + ((try fa(0) or try fa(0)) catch (e) 5); // both fail → catch handler → +5 = 111
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r = r + ((try fa(0) or try fa(9)) catch (e) 0); // second succeeds → catch skipped → +9 = 120
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try fv(0) or try fv(1); // void chain: first fails → second succeeds
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return r; // success → exit 120; onfail skipped
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}
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