authorgravatar for mitchell.hashimoto@gmail.comMitchell Hashimoto <mitchell.hashimoto@gmail.com> 2022-03-11 09:26:36-08:00
committergravatar for andrew@ziglang.orgAndrew Kelley <andrew@ziglang.org> 2022-03-11 12:51:21-07:00
log6a9c9afbae24897a5c6fa843794be33e4ed33f12
treefa6bfa60f1e195006865c0c26136ff550cd944e3
parent86a98b172be5060110efdd9c61415c841042564e

stage2: @hasField for anon structs

2 files changed, 9 insertions(+), 0 deletions(-)

src/Sema.zig+5
......@@ -7790,6 +7790,11 @@ fn zirHasField(sema: *Sema, block: *Block, inst: Zir.Inst.Index) CompileError!Ai
77907790 if (mem.eql(u8, field_name, "len")) break :hf true;
77917791 break :hf false;
77927792 }
7793 if (ty.castTag(.anon_struct)) |pl| {
7794 break :hf for (pl.data.names) |name| {
7795 if (mem.eql(u8, name, field_name)) break true;
7796 } else false;
7797 }
77937798 break :hf switch (ty.zigTypeTag()) {
77947799 .Struct => ty.structFields().contains(field_name),
77957800 .Union => ty.unionFields().contains(field_name),
test/behavior/hasfield.zig+4
......@@ -34,4 +34,8 @@ test "@hasField" {
3434 try expect(@hasField(enm, "b") == true);
3535 try expect(@hasField(enm, "non-existant") == false);
3636 try expect(@hasField(enm, "nope") == false);
37
38 const anon = @TypeOf(.{ .a = 1 });
39 try expect(@hasField(anon, "a") == true);
40 try expect(@hasField(anon, "b") == false);
3741}