Commit 0ffeec4b4d3c0321cac618557e829571fa997881 | zig

switch from `inline for` with `std.mem.eql`
to `inline else` and tag comparison.

add previously-failing test code.

1 files changed, 14 insertions(+), 8 deletions(-)

lib/std/meta.zig+14-8

...	...	@@ -757,16 +757,13 @@ pub fn eql(a: anytype, b: @TypeOf(a)) bool {
757	757	},
758	758	.Union => \|info\| {
759	759	if (info.tag_type) \|UnionTag\| {
760		const tag_a = activeTag(a);
761		const tag_b = activeTag(b);
	760	const tag_a: UnionTag = a;
	761	const tag_b: UnionTag = b;
762	762	if (tag_a != tag_b) return false;
763	763
764		inline for (info.fields) \|field_info\| {
765		if (@field(UnionTag, field_info.name) == tag_a) {
766		return eql(@field(a, field_info.name), @field(b, field_info.name));
767		}
768		}
769		return false;
	764	return switch (a) {
	765	inline else => \|val, tag\| return eql(val, @field(b, @tagName(tag))),
	766	};
770	767	}
771	768
772	769	@compileError("cannot compare untagged union type " ++ @typeName(T));
...	...	@@ -858,6 +855,15 @@ test eql {
858	855
859	856	try testing.expect(eql(v1, v2));
860	857	try testing.expect(!eql(v1, v3));
	858
	859	const CU = union(enum) {
	860	a: void,
	861	b: void,
	862	c: comptime_int,
	863	};
	864
	865	try testing.expect(eql(CU{ .a = {} }, .a));
	866	try testing.expect(!eql(CU{ .a = {} }, .b));
861	867	}
862	868
863	869	test intToEnum {