authorgravatar for andrew@ziglang.orgAndrew Kelley <andrew@ziglang.org> 2023-02-18 10:27:08-07:00
committergravatar for andrew@ziglang.orgAndrew Kelley <andrew@ziglang.org> 2023-02-18 19:17:21-07:00
logf2a6a1756bd3d3e284410c001ee997c4d12a260b
tree0b932c7e86e287ffa15708389bfc90a69fe43384
parent552e8095ae62654d0ba7dffbc8e0e1dfb6499c9d

Sema: fix for loops with comptime-known int ranges

2 files changed, 17 insertions(+), 1 deletions(-)

src/Sema.zig+5-1
......@@ -3924,7 +3924,11 @@ fn zirForLen(sema: *Sema, block: *Block, inst: Zir.Inst.Index) CompileError!Air.
39243924 const object_ty = sema.typeOf(object);
39253925 // Each arg could be an indexable, or a range, in which case the length
39263926 // is passed directly as an integer.
3927 const arg_len = if (object_ty.zigTypeTag() == .Int) object else l: {
3927 const is_int = switch (object_ty.zigTypeTag()) {
3928 .Int, .ComptimeInt => true,
3929 else => false,
3930 };
3931 const arg_len = if (is_int) object else l: {
39283932 try checkIndexable(sema, block, src, object_ty);
39293933 if (!object_ty.indexableHasLen()) continue;
39303934
test/behavior/for.zig+12
......@@ -249,3 +249,15 @@ test "for loop with else branch" {
249249 try expect(q == 4);
250250 }
251251}
252
253test "count over fixed range" {
254 if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest; // TODO
255 if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest; // TODO
256
257 var sum: usize = 0;
258 for (0..6) |i| {
259 sum += i;
260 }
261
262 try expect(sum == 15);
263}