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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
1.8 KiB
Plaintext
50 lines
1.8 KiB
Plaintext
Kind.reduce.op2
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: ∀(opr: Kind.Oper) ∀(fst: Kind.Term) ∀(snd: Kind.Term)
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Kind.Term
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= λopr λfst λsnd
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use P = ∀(snd: Kind.Term) Kind.Term
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use Y = λfst_val λsnd
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use P = ∀(fst_val: #U60) Kind.Term
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use Y = λsnd_val λfst_val
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use P = λx ∀(fst_val: #U60) ∀(snd_val: #U60) Kind.Term
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use add = λfst_val λsnd_val (Kind.num #(+ fst_val snd_val))
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use mul = λfst_val λsnd_val (Kind.num #(* fst_val snd_val))
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use sub = λfst_val λsnd_val (Kind.num #(- fst_val snd_val))
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use div = λfst_val λsnd_val (Kind.num #(/ fst_val snd_val))
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use mod = λfst_val λsnd_val (Kind.num #(% fst_val snd_val))
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use eq = λfst_val λsnd_val (Kind.num #(== fst_val snd_val))
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use ne = λfst_val λsnd_val (Kind.num #(!= fst_val snd_val))
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use lt = λfst_val λsnd_val (Kind.num #(< fst_val snd_val))
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use gt = λfst_val λsnd_val (Kind.num #(> fst_val snd_val))
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use lte = λfst_val λsnd_val (Kind.num #(<= fst_val snd_val))
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use gte = λfst_val λsnd_val (Kind.num #(>= fst_val snd_val))
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use and = λfst_val λsnd_val (Kind.num #(& fst_val snd_val))
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use or = λfst_val λsnd_val (Kind.num #(| fst_val snd_val))
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use xor = λfst_val λsnd_val (Kind.num #(^ fst_val snd_val))
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use lsh = λfst_val λsnd_val (Kind.num #(<< fst_val snd_val))
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use rsh = λfst_val λsnd_val (Kind.num #(>> fst_val snd_val))
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(~opr
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P
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add
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mul
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sub
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div
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mod
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eq
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ne
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lt
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gt
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lte
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gte
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and
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or
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xor
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lsh
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rsh
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fst_val
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snd_val
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)
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use N = λsnd λfst_val (Kind.op2 opr (Kind.num fst_val) snd)
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(Kind.if.num snd P Y N fst_val)
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use N = λfst λsnd (Kind.op2 opr fst snd)
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(Kind.if.num fst P Y N snd) |