mirror of
https://github.com/HigherOrderCO/Kind.git
synced 2024-09-11 17:56:48 +03:00
Now, there are two local binders: let x = ... use x = ... The 'let' binder will create a local definition, type-check it, and assign a name to it. When compiled, it will create 'dup' nodes. The 'use' binder is just an alias. It will not bind a new variable, and, when compiled, will create inline copies. Also, for type-checking, it allows creating aliases that are definitionaly equal for the checker.
18 lines
551 B
Plaintext
18 lines
551 B
Plaintext
BBT.lft_rotate
|
|
: ∀(K: *)
|
|
∀(V: *)
|
|
∀(size: #U60)
|
|
∀(key: K)
|
|
∀(val: V)
|
|
∀(lft: (BBT K V))
|
|
∀(rgt: (BBT K V))
|
|
(BBT K V)
|
|
= λK λV λsize λkey λval λlft λrgt
|
|
use P = λx ∀(key: K) ∀(val: V) ∀(lft: (BBT K V)) (BBT K V)
|
|
use bin = λ_size λrgt.key λrgt.val λrgt.lft λrgt.rgt λkey λval λlft
|
|
use b = (BBT.new_node K V key val lft rgt.lft)
|
|
use a = (BBT.new_node K V rgt.key rgt.val b rgt.rgt)
|
|
a
|
|
use tip = λkey λval λlft
|
|
(BBT.bin K V size key val lft (BBT.tip K V))
|
|
(~rgt P bin tip key val lft) |