Files
ww/test/lang/arrlit_slice_test.ww
Hojun-Cho 1a57de6ffe test/lang: absorb retired-carrier coverage
local_zeroinit_test.ww takes the 840/944 zero-init seam (dirty-frame
prime and probe share one @test because the runtime forks per test);
alias_cgen_b6, alloc_nested_field, array_static_init, and
strarray_static gain the rows their retired wrappers held; the
remaining files re-point reject-row citations at the r788_* and
stage-matrix fixtures.
2026-08-07 23:21:04 +09:00

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// arrlit_slice_test — #25/#31: a one-step array-LITERAL initialiser for a SLICE
// local (`let xs: []T = [..]`). Migrated from test/wcc/953_arrlit_slice_run.c
// (value rows; cs==ww byte-id rides T2). Reject rows, including the
// stage-asymmetric assignment diagnostic, live under test/wcc/data/.
//
// #31 (silent cs!=ww): the borrow wrapped the un-addressable arrlit directly,
// so .ptr pointed at garbage (xs[1] returned 1, not 20; []u8/[]str SEGV). #25
// (over-strict): bare-int-width / str elements rejected. The fix re-stamps the
// arrlit [count]T and materialises a fresh per-borrow stack slot. multi_live is
// the SOUNDNESS pin: a shared backing slot would alias the two borrows (4+4=8).
package arrlit_slice_test;
@test fn i32_sum() void = {
let xs: []i32 = [10, 20, 30];
assert(xs[0] + xs[1] + xs[2] == 60);
};
@test fn i32_idx() void = {
let xs: []i32 = [10, 20, 30];
assert(xs[1] == 20);
};
@test fn u8_coerce() void = {
let zs: []u8 = [1, 2, 3];
assert(zs[0]: i32 + zs[1]: i32 + zs[2]: i32 == 6);
};
@test fn u8_typed() void = {
let xs: []u8 = [10u8, 20u8, 30u8];
assert(xs[2]: i32 == 30);
};
@test fn i64_stride() void = {
let xs: []i64 = [7i64, 42i64];
assert(xs[1] == 42);
};
@test fn str_read() void = {
let ys: []str = ["ab", "c"];
assert(ys[0].len: i32 * 10 + ys[1].len: i32 == 21);
};
@test fn len_read() void = {
let xs: []i32 = [10, 20, 30];
assert(xs.len == 3);
};
@test fn multi_live() void = {
let xs: []i32 = [1, 2, 3];
let ys: []i32 = [4, 5];
assert(xs[0] + ys[0] == 5);
};
@test fn borrow_mut() void = {
let xs: []i32 = [1, 2, 3];
xs[1] = 99;
assert(xs[1] == 99);
};