Hojun-Cho
7dc3150b65
The a[i] = src copy loop enumerated ident/field/deref sources; an N_INDEX rhs fell to the scalar tail and truncated the element. Route it through the generic place-address funnel. Both stages.
27 lines
738 B
Plaintext
27 lines
738 B
Plaintext
// Indexed aggregate assignment must copy from the source element's storage.
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// Sorting uses this three-step swap on slices, so preserving only one word can
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// silently duplicate records while both compiler stages still agree.
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package aggregate_slice_swap_test;
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type row = struct {
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key: i64,
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value: i64,
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guard: i64,
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};
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@test fn distinct_after_swap() void = {
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let rows: []row = [];
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append(rows, row { key = 1, value = 11, guard = 111 });
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append(rows, row { key = 2, value = 22, guard = 222 });
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let t: row = rows[1];
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rows[1] = rows[0];
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rows[0] = t;
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assert(rows[0].key == 2);
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assert(rows[0].value == 22);
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assert(rows[0].guard == 222);
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assert(rows[1].key == 1);
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assert(rows[1].value == 11);
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assert(rows[1].guard == 111);
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};
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