RFC 9562 UUID implementation in Zig
sites.wisp.place/jcollie.dev/uuid.zig/
zig
uuid
don't copy hashes around
Jeffrey C. Ollie
(Aug 13, 2025, 10:04 AM -0500)
5827a6c8
b7613e7c
+6
-6
+6
-6
src/root.zig
+6
-6
src/root.zig
···
131
131
},
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v2,
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133
v3: struct {
134
-
hash: [std.crypto.hash.Md5.digest_length]u8,
134
+
hash: *const [std.crypto.hash.Md5.digest_length]u8,
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pub fn parts(self: @This()) packed struct(u128) {
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137
low: u62,
···
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140
_padding1: u4,
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high: u48,
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142
} {
143
-
return @bitCast(std.mem.readInt(u128, &self.hash, .big));
143
+
return @bitCast(std.mem.readInt(u128, self.hash, .big));
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}
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},
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v4,
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v5: struct {
148
-
hash: [std.crypto.hash.Sha1.digest_length]u8,
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+
hash: *const [std.crypto.hash.Sha1.digest_length]u8,
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pub fn parts(self: @This()) packed struct(u160) {
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151
_padding3: u32,
···
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155
_padding1: u4,
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high: u48,
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} {
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-
return @bitCast(std.mem.readInt(u160, &self.hash, .big));
158
+
return @bitCast(std.mem.readInt(u160, self.hash, .big));
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}
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160
},
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161
v6: struct {
···
558
558
559
559
const id: UUID = .new(.{
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560
.v3 = .{
561
-
.hash = .{ 0x5d, 0xf4, 0x18, 0x81, 0x3a, 0xed, 0x05, 0x15, 0x48, 0xa7, 0x2f, 0x4a, 0x81, 0x4c, 0xf0, 0x9e },
561
+
.hash = &[_]u8{ 0x5d, 0xf4, 0x18, 0x81, 0x3a, 0xed, 0x05, 0x15, 0x48, 0xa7, 0x2f, 0x4a, 0x81, 0x4c, 0xf0, 0x9e },
562
562
},
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563
});
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564
···
623
623
const id: UUID = .new(
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.{
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625
.v5 = .{
626
-
.hash = .{ 0x2e, 0xd6, 0x65, 0x7d, 0xe9, 0x27, 0x46, 0x8b, 0x55, 0xe1, 0x26, 0x65, 0xa8, 0xae, 0xa6, 0xa2, 0x2d, 0xee, 0x3e, 0x35 },
626
+
.hash = &[_]u8{ 0x2e, 0xd6, 0x65, 0x7d, 0xe9, 0x27, 0x46, 0x8b, 0x55, 0xe1, 0x26, 0x65, 0xa8, 0xae, 0xa6, 0xa2, 0x2d, 0xee, 0x3e, 0x35 },
627
627
},
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628
},
629
629
);