Mercurial > hg > Papers > 2020 > soto-midterm
diff src/stack-subtype-sample.agda.replaced @ 1:73127e0ab57c
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author | soto@cr.ie.u-ryukyu.ac.jp |
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date | Tue, 08 Sep 2020 18:38:08 +0900 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/stack-subtype-sample.agda.replaced Tue Sep 08 18:38:08 2020 +0900 @@ -0,0 +1,212 @@ +module stack-subtype-sample where + +open import Level renaming (suc to S ; zero to O) +open import Function +open import Data.Nat +open import Data.Maybe +open import Relation.Binary.PropositionalEquality + +open import stack-subtype @$\mathbb{N}$@ +open import subtype Context as N +open import subtype Meta as M + + +record Num : Set where + field + num : @$\mathbb{N}$@ + +instance + NumIsNormalDataSegment : N.DataSegment Num + NumIsNormalDataSegment = record { get = (\c @$\rightarrow$@ record { num = Context.n c}) + ; set = (\c n @$\rightarrow$@ record c {n = Num.num n})} + NumIsMetaDataSegment : M.DataSegment Num + NumIsMetaDataSegment = record { get = (\m @$\rightarrow$@ record {num = Context.n (Meta.context m)}) + ; set = (\m n @$\rightarrow$@ record m {context = record (Meta.context m) {n = Num.num n}})} + + +plus3 : Num @$\rightarrow$@ Num +plus3 record { num = n } = record {num = n + 3} + +plus3CS : N.CodeSegment Num Num +plus3CS = N.cs plus3 + + + +plus5AndPushWithPlus3 : {mc : Meta} {{_ : N.DataSegment Num}} + @$\rightarrow$@ M.CodeSegment Num (Meta) +plus5AndPushWithPlus3 {mc} {{nn}} = M.cs (\n @$\rightarrow$@ record {context = con n ; nextCS = (liftContext {{nn}} {{nn}} plus3CS) ; stack = st} ) + where + co = Meta.context mc + con : Num @$\rightarrow$@ Context + con record { num = num } = N.DataSegment.set nn co record {num = num + 5} + st = Meta.stack mc + + + + +push-sample : {{_ : N.DataSegment Num}} {{_ : M.DataSegment Num}} @$\rightarrow$@ Meta +push-sample {{nd}} {{md}} = M.exec {{md}} (plus5AndPushWithPlus3 {mc} {{nd}}) mc + where + con = record { n = 4 ; element = just 0} + code = N.cs (\c @$\rightarrow$@ c) + mc = record {context = con ; stack = emptySingleLinkedStack ; nextCS = code} + + +push-sample-equiv : push-sample @$\equiv$@ record { nextCS = liftContext plus3CS + ; stack = record { top = nothing} + ; context = record { n = 9} } +push-sample-equiv = refl + + +pushed-sample : {m : Meta} {{_ : N.DataSegment Num}} {{_ : M.DataSegment Num}} @$\rightarrow$@ Meta +pushed-sample {m} {{nd}} {{md}} = M.exec {{md}} (M.csComp {m} {{md}} pushSingleLinkedStackCS (plus5AndPushWithPlus3 {mc} {{nd}})) mc + where + con = record { n = 4 ; element = just 0} + code = N.cs (\c @$\rightarrow$@ c) + mc = record {context = con ; stack = emptySingleLinkedStack ; nextCS = code} + + + +pushed-sample-equiv : {m : Meta} @$\rightarrow$@ + pushed-sample {m} @$\equiv$@ record { nextCS = liftContext plus3CS + ; stack = record { top = just (cons 0 nothing) } + ; context = record { n = 12} } +pushed-sample-equiv = refl + + + +pushNum : N.CodeSegment Context Context +pushNum = N.cs pn + where + pn : Context @$\rightarrow$@ Context + pn record { n = n } = record { n = pred n ; element = just n} + + +pushOnce : Meta @$\rightarrow$@ Meta +pushOnce m = M.exec pushSingleLinkedStackCS m + +n-push : {m : Meta} {{_ : M.DataSegment Meta}} (n : @$\mathbb{N}$@) @$\rightarrow$@ M.CodeSegment Meta Meta +n-push {{mm}} (zero) = M.cs {{mm}} {{mm}} id +n-push {m} {{mm}} (suc n) = M.cs {{mm}} {{mm}} (\m @$\rightarrow$@ M.exec {{mm}} {{mm}} (n-push {m} {{mm}} n) (pushOnce m)) + +popOnce : Meta @$\rightarrow$@ Meta +popOnce m = M.exec popSingleLinkedStackCS m + +n-pop : {m : Meta} {{_ : M.DataSegment Meta}} (n : @$\mathbb{N}$@) @$\rightarrow$@ M.CodeSegment Meta Meta +n-pop {{mm}} (zero) = M.cs {{mm}} {{mm}} id +n-pop {m} {{mm}} (suc n) = M.cs {{mm}} {{mm}} (\m @$\rightarrow$@ M.exec {{mm}} {{mm}} (n-pop {m} {{mm}} n) (popOnce m)) + + + +initMeta : @$\mathbb{N}$@ @$\rightarrow$@ Maybe @$\mathbb{N}$@ @$\rightarrow$@ N.CodeSegment Context Context @$\rightarrow$@ Meta +initMeta n mn code = record { context = record { n = n ; element = mn} + ; stack = emptySingleLinkedStack + ; nextCS = code + } + +n-push-cs-exec = M.exec (n-push {meta} 3) meta + where + meta = (initMeta 5 (just 9) pushNum) + + +n-push-cs-exec-equiv : n-push-cs-exec @$\equiv$@ record { nextCS = pushNum + ; context = record {n = 2 ; element = just 3} + ; stack = record {top = just (cons 4 (just (cons 5 (just (cons 9 nothing)))))}} +n-push-cs-exec-equiv = refl + + +n-pop-cs-exec = M.exec (n-pop {meta} 4) meta + where + meta = record { nextCS = N.cs id + ; context = record { n = 0 ; element = nothing} + ; stack = record {top = just (cons 9 (just (cons 8 (just (cons 7 (just (cons 6 (just (cons 5 nothing)))))))))} + } + +n-pop-cs-exec-equiv : n-pop-cs-exec @$\equiv$@ record { nextCS = N.cs id + ; context = record { n = 0 ; element = just 6} + ; stack = record { top = just (cons 5 nothing)} + } + +n-pop-cs-exec-equiv = refl + + +open @$\equiv$@-Reasoning + +id-meta : @$\mathbb{N}$@ @$\rightarrow$@ @$\mathbb{N}$@ @$\rightarrow$@ SingleLinkedStack @$\mathbb{N}$@ @$\rightarrow$@ Meta +id-meta n e s = record { context = record {n = n ; element = just e} + ; nextCS = (N.cs id) ; stack = s} + +exec-comp : (f g : M.CodeSegment Meta Meta) (m : Meta) @$\rightarrow$@ M.exec (M.csComp {m} f g) m @$\equiv$@ M.exec f (M.exec g m) +exec-comp (M.cs x) (M.cs _) m = refl + + +push-pop-type : @$\mathbb{N}$@ @$\rightarrow$@ @$\mathbb{N}$@ @$\rightarrow$@ @$\mathbb{N}$@ @$\rightarrow$@ Element @$\mathbb{N}$@ @$\rightarrow$@ Set@$\_{1}$@ +push-pop-type n e x s = M.exec (M.csComp {meta} (M.cs popOnce) (M.cs pushOnce)) meta @$\equiv$@ meta + where + meta = id-meta n e record {top = just (cons x (just s))} + +push-pop : (n e x : @$\mathbb{N}$@) @$\rightarrow$@ (s : Element @$\mathbb{N}$@) @$\rightarrow$@ push-pop-type n e x s +push-pop n e x s = refl + + + +pop-n-push-type : @$\mathbb{N}$@ @$\rightarrow$@ @$\mathbb{N}$@ @$\rightarrow$@ @$\mathbb{N}$@ @$\rightarrow$@ SingleLinkedStack @$\mathbb{N}$@ @$\rightarrow$@ Set@$\_{1}$@ +pop-n-push-type n cn ce s = M.exec (M.csComp {meta} (M.cs popOnce) (n-push {meta} (suc n))) meta + @$\equiv$@ M.exec (n-push {meta} n) meta + where + meta = id-meta cn ce s + +pop-n-push : (n cn ce : @$\mathbb{N}$@) @$\rightarrow$@ (s : SingleLinkedStack @$\mathbb{N}$@) @$\rightarrow$@ pop-n-push-type n cn ce s + +pop-n-push zero cn ce s = refl +pop-n-push (suc n) cn ce s = begin + M.exec (M.csComp {id-meta cn ce s} (M.cs popOnce) (n-push {id-meta cn ce (record {top = just (cons ce (SingleLinkedStack.top s))})} (suc (suc n)))) (id-meta cn ce s) + @$\equiv$@@$\langle$@ refl @$\rangle$@ + M.exec (M.csComp {id-meta cn ce s} (M.cs popOnce) (M.csComp {id-meta cn ce s} (n-push {id-meta cn ce (record {top = just (cons ce (SingleLinkedStack.top s))})} (suc n)) (M.cs pushOnce))) (id-meta cn ce s) + @$\equiv$@@$\langle$@ exec-comp (M.cs popOnce) (M.csComp {id-meta cn ce s} (n-push {id-meta cn ce (record {top = just (cons ce (SingleLinkedStack.top s))})} (suc n)) (M.cs pushOnce)) (id-meta cn ce s) @$\rangle$@ + M.exec (M.cs popOnce) (M.exec (M.csComp {id-meta cn ce s} (n-push {id-meta cn ce (record {top = just (cons ce (SingleLinkedStack.top s))})} (suc n)) (M.cs pushOnce)) (id-meta cn ce s)) + @$\equiv$@@$\langle$@ cong (\x @$\rightarrow$@ M.exec (M.cs popOnce) x) (exec-comp (n-push {id-meta cn ce (record {top = just (cons ce (SingleLinkedStack.top s))})} (suc n)) (M.cs pushOnce) (id-meta cn ce s)) @$\rangle$@ + M.exec (M.cs popOnce) (M.exec (n-push {id-meta cn ce (record {top = just (cons ce (SingleLinkedStack.top s))})} (suc n))(M.exec (M.cs pushOnce) (id-meta cn ce s))) + @$\equiv$@@$\langle$@ refl @$\rangle$@ + M.exec (M.cs popOnce) (M.exec (n-push {id-meta cn ce (record {top = just (cons ce (SingleLinkedStack.top s))})} (suc n)) (id-meta cn ce (record {top = just (cons ce (SingleLinkedStack.top s))}))) + @$\equiv$@@$\langle$@ sym (exec-comp (M.cs popOnce) (n-push {id-meta cn ce (record {top = just (cons ce (SingleLinkedStack.top s))})} (suc n)) (id-meta cn ce (record {top = just (cons ce (SingleLinkedStack.top s))}))) @$\rangle$@ + M.exec (M.csComp {id-meta cn ce s} (M.cs popOnce) (n-push {id-meta cn ce (record {top = just (cons ce (SingleLinkedStack.top s))})} (suc n))) (id-meta cn ce (record {top = just (cons ce (SingleLinkedStack.top s))})) + @$\equiv$@@$\langle$@ pop-n-push n cn ce (record {top = just (cons ce (SingleLinkedStack.top s))}) @$\rangle$@ + M.exec (n-push n) (id-meta cn ce (record {top = just (cons ce (SingleLinkedStack.top s))})) + @$\equiv$@@$\langle$@ refl @$\rangle$@ + M.exec (n-push n) (pushOnce (id-meta cn ce s)) + @$\equiv$@@$\langle$@ refl @$\rangle$@ + M.exec (n-push n) (M.exec (M.cs pushOnce) (id-meta cn ce s)) + @$\equiv$@@$\langle$@ refl @$\rangle$@ + M.exec (n-push {id-meta cn ce s} (suc n)) (id-meta cn ce s) + @$\blacksquare$@ + + + +n-push-pop-type : @$\mathbb{N}$@ @$\rightarrow$@ @$\mathbb{N}$@ @$\rightarrow$@ @$\mathbb{N}$@ @$\rightarrow$@ SingleLinkedStack @$\mathbb{N}$@ @$\rightarrow$@ Set@$\_{1}$@ +n-push-pop-type n cn ce st = M.exec (M.csComp {meta} (n-pop {meta} n) (n-push {meta} n)) meta @$\equiv$@ meta + where + meta = id-meta cn ce st + +n-push-pop : (n cn ce : @$\mathbb{N}$@) @$\rightarrow$@ (s : SingleLinkedStack @$\mathbb{N}$@) @$\rightarrow$@ n-push-pop-type n cn ce s +n-push-pop zero cn ce s = refl +n-push-pop (suc n) cn ce s = begin + M.exec (M.csComp {id-meta cn ce s} (n-pop {id-meta cn ce s} (suc n)) (n-push {id-meta cn ce s} (suc n))) (id-meta cn ce s) + @$\equiv$@@$\langle$@ refl @$\rangle$@ + M.exec (M.csComp {id-meta cn ce s} (M.cs (\m @$\rightarrow$@ M.exec (n-pop {id-meta cn ce s} n) (popOnce m))) (n-push {id-meta cn ce s} (suc n))) (id-meta cn ce s) + @$\equiv$@@$\langle$@ exec-comp (M.cs (\m @$\rightarrow$@ M.exec (n-pop n) (popOnce m))) (n-push {id-meta cn ce s} (suc n)) (id-meta cn ce s) @$\rangle$@ + M.exec (M.cs (\m @$\rightarrow$@ M.exec (n-pop {id-meta cn ce s} n) (popOnce m))) (M.exec (n-push {id-meta cn ce s} (suc n)) (id-meta cn ce s)) + @$\equiv$@@$\langle$@ refl @$\rangle$@ + M.exec (n-pop n) (popOnce (M.exec (n-push {id-meta cn ce s} (suc n)) (id-meta cn ce s))) + @$\equiv$@@$\langle$@ refl @$\rangle$@ + M.exec (n-pop n) (M.exec (M.cs popOnce) (M.exec (n-push {id-meta cn ce s} (suc n)) (id-meta cn ce s))) + @$\equiv$@@$\langle$@ cong (\x @$\rightarrow$@ M.exec (n-pop {id-meta cn ce s} n) x) (sym (exec-comp (M.cs popOnce) (n-push {id-meta cn ce s} (suc n)) (id-meta cn ce s))) @$\rangle$@ + M.exec (n-pop n) (M.exec (M.csComp {id-meta cn ce s} (M.cs popOnce) (n-push {id-meta cn ce s} (suc n))) (id-meta cn ce s)) + @$\equiv$@@$\langle$@ cong (\x @$\rightarrow$@ M.exec (n-pop {id-meta cn ce s} n) x) (pop-n-push n cn ce s) @$\rangle$@ + M.exec (n-pop n) (M.exec (n-push n) (id-meta cn ce s)) + @$\equiv$@@$\langle$@ sym (exec-comp (n-pop n) (n-push n) (id-meta cn ce s)) @$\rangle$@ + M.exec (M.csComp (n-pop n) (n-push n)) (id-meta cn ce s) + @$\equiv$@@$\langle$@ n-push-pop n cn ce s @$\rangle$@ + id-meta cn ce s + @$\blacksquare$@ +