Files
sx/examples/0709-modules-issue-0056-diamond-param-impl.sx
agra 4e942b5373 test: migrate examples to XXXX-category-name layout + split expected streams
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.
2026-06-01 19:05:15 +03:00

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// Regression (issue 0056): a parameterised-protocol (`Into`) impl living in a
// module reached through more than one import path must register exactly once.
//
// main ─┬─ issue-0056/mid_a ─┐
// └─ issue-0056/mid_b ─┴─ issue-0056/common (holds `impl Into(Wrapped) for s64`)
//
// Impl blocks are anonymous (no `declName`), so before the fix the diamond
// dedup in imports.zig appended the cached node once per path and the second
// registration tripped: `duplicate impl 'Into' for source 's64'`. Now the flat
// decl list also dedups by node identity, so this builds and prints 7.
#import "modules/std.sx";
#import "0709-modules-issue-0056/mid_a.sx";
#import "0709-modules-issue-0056/mid_b.sx";
main :: () -> s32 {
w : Wrapped = xx 7;
print("{}\n", w.v);
0;
}