cajeta.lang.Guid — a 128-bit globally-unique identifier (UUID), backed by a single uint128. Cajeta’s native 128-bit integers make this a true value-width identifier — no struct-of-two-longs, no byte array — so comparison, hashing, and storage are single-word operations. Immutable: the value is set once at construction. equals(Guid) is the exact 128-bit comparison; == and hash-keyed collections route through hash(), which folds 128 bits into 64 and carries the standard ~2⁻⁶⁴ collision caveat.

Guid a #= Guid.random();                 // fresh version-4 UUID
Guid b #= Guid.parse("01234567-89ab-cdef-fedc-ba9876543210");
Guid c #= Guid.fromHalves((uint64) 255L, (uint64) 1L);
boolean same = a.equals(b);             // exact 128-bit compare — false
String text #= b.toString();             // canonical lowercase 8-4-4-4-12

Methods

Signature
`Guid(uint128 value)`	Wrap an existing 128-bit value
`static #Guid of(uint128 value)` ⚑	Box an existing 128-bit value
`static #Guid fromHalves(uint64 hi, uint64 lo)` ⚑	Compose from a high and low 64-bit half
`static #Guid random()` ⚑	A fresh random (version-4) UUID
`static #Guid parse(#String s)` ⚑	Parse a canonical 36-character `8-4-4-4-12` hex GUID; throws `GuidFormatException` on malformed input
`uint128 value()`	The raw 128-bit value
`uint64 high()`	The most-significant 64 bits
`uint64 low()`	The least-significant 64 bits
`boolean equals(Guid other)`	Exact 128-bit equality (no hash collisions)
`int64 hash()`	Value-based hash over all 128 bits
`#String toString()`	Canonical lowercase `8-4-4-4-12` hex form

⚑ = @EntryPoint

Guid

Methods

See also