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.
32 lines
1.1 KiB
Plaintext
32 lines
1.1 KiB
Plaintext
// Slice-of-protocol variadic `..xs: []P` — the RUNTIME counterpart to the
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// comptime pack `..xs: P`. Each trailing arg is `xx`-erased to a `P` protocol
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// value {ctx, vtable} and packed into a runtime `[]P`, so the elements can be
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// indexed by a RUNTIME index and dispatched through the protocol interface
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// (unlike a pack, which is comptime-only — see examples/163).
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//
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// This is the type-safe way to iterate a heterogeneous arg list at runtime:
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// concrete per-position types are erased to the constraint protocol.
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#import "modules/std.sx";
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Show :: protocol { show :: () -> string; }
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A :: struct { x: s64; }
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B :: struct { s: string; }
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impl Show for A { show :: (self: *A) -> string => "A"; }
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impl Show for B { show :: (self: *B) -> string => "B"; }
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// Runtime loop over a []Show: runtime index + protocol-method dispatch.
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each :: (..xs: []Show) -> void {
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i := 0;
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while i < xs.len {
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print("[{}]={}\n", i, xs[i].show());
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i = i + 1;
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}
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}
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main :: () -> s32 {
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each(A.{ x = 1 }, B.{ s = "hi" }, A.{ x = 3 }); // heterogeneous, erased to Show
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each(); // empty is fine (len 0)
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0;
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}
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