tur/typeclass-clone
stdlib/typeclass-clone.tur
minimal Clone typeclass stub for definstance sites.
Auto-loaded so ref.tur and other modules can declare (definstance Clone [...] ...) without importing typeclass.tur.
Since: Phase B1
defclass
Clone
(defclass Clone [a])
values that can be copied into an independently owned value.
Type parameters
| a | the type to clone |
Methods
(clone [x :a] :a)-
a copy of
xthe caller owns. For a primitive this isxitself; for a refcounted handle (String, rc) it is a retain.
Example
(clone 42) ; => 42
Partner of Drop: a captured value that is Clone and Drop is retained when captured and released when the closure env dies.
Instances
rc, Ref, String, int, ref, bool, cstr, int8, int16, int32, uint8, uint16, uint32, uint64, float32
Since: Phase B1
definstance
Clone[int]
(definstance Clone [int])
Clone instance for int (trivial copy).
Since: Phase B1
definstance
Clone[ref]
(definstance Clone [ref])
deep-clone a raw ref<T> (TY_REF): allocates a new int64_t cell and copies the value.
Since: Phase B1