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std.meta: remove tagName

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not used by Zig itself anywhere
This commit is contained in:
Meghan 2023-05-05 00:17:18 -07:00 committed by Veikka Tuominen
parent 11fabc4cbe
commit 0972196f4d
1 changed files with 1 additions and 42 deletions
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43
lib/std/meta.zig
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@ -14,48 +14,7 @@ test {
_ = TrailerFlags;
}
pub fn tagName(v: anytype) []const u8 {
const T = @TypeOf(v);
switch (@typeInfo(T)) {
.ErrorSet => return @errorName(v),
else => return @tagName(v),
}
}
test "std.meta.tagName" {
const E1 = enum {
A,
B,
};
const E2 = enum(u8) {
C = 33,
D,
};
const U1 = union(enum) {
G: u8,
H: u16,
};
const U2 = union(E2) {
C: u8,
D: u16,
};
var u1g = U1{ .G = 0 };
var u1h = U1{ .H = 0 };
var u2a = U2{ .C = 0 };
var u2b = U2{ .D = 0 };
try testing.expect(mem.eql(u8, tagName(E1.A), "A"));
try testing.expect(mem.eql(u8, tagName(E1.B), "B"));
try testing.expect(mem.eql(u8, tagName(E2.C), "C"));
try testing.expect(mem.eql(u8, tagName(E2.D), "D"));
try testing.expect(mem.eql(u8, tagName(error.E), "E"));
try testing.expect(mem.eql(u8, tagName(error.F), "F"));
try testing.expect(mem.eql(u8, tagName(u1g), "G"));
try testing.expect(mem.eql(u8, tagName(u1h), "H"));
try testing.expect(mem.eql(u8, tagName(u2a), "C"));
try testing.expect(mem.eql(u8, tagName(u2b), "D"));
}
pub const tagName = @compileError("deprecated; use @tagName or @errorName directly");
/// Given an enum or tagged union, returns true if the comptime-supplied
/// string matches the name of the tag value. This match process should