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.
50 lines
1.3 KiB
Plaintext
50 lines
1.3 KiB
Plaintext
BBT.has.linear
|
|
: ∀(K: *)
|
|
∀(V: *)
|
|
∀(cmp: ∀(a: K) ∀(b: K) Cmp)
|
|
∀(key: K)
|
|
∀(map: (BBT K V))
|
|
(Pair Bool (BBT K V))
|
|
= λK λV λcmp λkey λmap
|
|
use P = λx (Pair Bool (BBT K V))
|
|
use bin = λsize λnode_key λval λlft λrgt
|
|
use P = λx
|
|
∀(cmp: ∀(a: K) ∀(b: K) Cmp)
|
|
∀(key: K)
|
|
∀(lft: (BBT K V))
|
|
∀(rgt: (BBT K V))
|
|
(Pair Bool (BBT K V))
|
|
use ltn = λcmp λsize λhas_key λval λlft λrgt λhas_key
|
|
use P = λx (Pair Bool (BBT K V))
|
|
use new = λbool λlft
|
|
use map = (BBT.bin K V size node_key val lft rgt)
|
|
(Pair.new Bool (BBT K V) bool map)
|
|
(~(BBT.has.linear K V cmp has_key lft) P new)
|
|
use eql = λcmp λsize λkey λval λlft λrgt λhas_key
|
|
(Pair.new
|
|
Bool
|
|
(BBT K V)
|
|
Bool.true
|
|
(BBT.bin K V size node_key val lft rgt)
|
|
)
|
|
use gtn = λcmp λsize λkey λval λlft λrgt λhas_key
|
|
use P = λx (Pair Bool (BBT K V))
|
|
use new = λbool λrgt
|
|
use map = (BBT.bin K V size node_key val lft rgt)
|
|
(Pair.new Bool (BBT K V) bool rgt)
|
|
(~(BBT.has.linear K V cmp has_key rgt) P new)
|
|
(~(cmp key node_key)
|
|
P
|
|
ltn
|
|
eql
|
|
gtn
|
|
cmp
|
|
size
|
|
node_key
|
|
val
|
|
lft
|
|
rgt
|
|
key
|
|
)
|
|
use tip = (Pair.new Bool (BBT K V) Bool.false (BBT.tip K V))
|
|
(~map P bin tip) |