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Wrap generated graphs to ensure entry and exit nodes have no extra edges

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Signed-off-by: Danila Fedorin <danila.fedorin@gmail.com>
This commit is contained in:
Danila Fedorin 2024-05-09 21:08:32 -07:00
parent 69d1ecebae
commit 734e82ff6d
3 changed files with 14 additions and 18 deletions
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6
Language.agda
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@ -55,16 +55,16 @@ record Program : Set where
rootStmt : Stmt
graph : Graph
graph = buildCfg rootStmt
graph = wrap (buildCfg rootStmt)
State : Set
State = Graph.Index graph
initialState : State
initialState = proj₁ (buildCfg-input rootStmt)
initialState = proj₁ (wrap-input (buildCfg rootStmt))
finalState : State
finalState = proj₁ (buildCfg-output rootStmt)
finalState = proj₁ (wrap-output (buildCfg rootStmt))
private
vars-Set : StringSet

3
Language/Graphs.agda
View File

@ -112,6 +112,9 @@ singleton bss = record
; outputs = zero ∷ []
}
wrap : Graph → Graph
wrap g = singleton [] ↦ g ↦ singleton []
buildCfg : Stmt → Graph
buildCfg ⟨ bs₁ ⟩ = singleton (bs₁ ∷ [])
buildCfg (s₁ then s₂) = buildCfg s₁ ↦ buildCfg s₂

23
Language/Properties.agda
View File

@ -18,22 +18,11 @@ open import Relation.Binary.PropositionalEquality as Eq using (_≡_; refl; sym)
open import Utils using (x∈xs⇒fx∈fxs; ∈-cartesianProduct; concat-∈)
wrap-input : ∀ (g : Graph) → Σ (Graph.Index (wrap g)) (λ idx → Graph.inputs (wrap g) ≡ idx ∷ [])
wrap-input g = (_ , refl)
buildCfg-input : ∀ (s : Stmt) → let g = buildCfg s in Σ (Graph.Index g) (λ idx → Graph.inputs g ≡ idx ∷ [])
buildCfg-input ⟨ bs₁ ⟩ = (zero , refl)
buildCfg-input (s₁ then s₂)
with (idx , p) ← buildCfg-input s₁ rewrite p = (_ , refl)
buildCfg-input (if _ then s₁ else s₂) = (zero , refl)
buildCfg-input (while _ repeat s)
with (idx , p) ← buildCfg-input s rewrite p = (_ , refl)
buildCfg-output : ∀ (s : Stmt) → let g = buildCfg s in Σ (Graph.Index g) (λ idx → Graph.outputs g ≡ idx ∷ [])
buildCfg-output ⟨ bs₁ ⟩ = (zero , refl)
buildCfg-output (s₁ then s₂)
with (idx , p) ← buildCfg-output s₂ rewrite p = (_ , refl)
buildCfg-output (if _ then s₁ else s₂) = (_ , refl)
buildCfg-output (while _ repeat s)
with (idx , p) ← buildCfg-output s rewrite p = (_ , refl)
wrap-output : ∀ (g : Graph) → Σ (Graph.Index (wrap g)) (λ idx → Graph.outputs (wrap g) ≡ idx ∷ [])
wrap-output g = (_ , refl)
Trace-∙ˡ : ∀ {g₁ g₂ : Graph} {idx₁ idx₂ : Graph.Index g₁} {ρ₁ ρ₂ : Env} →
Trace {g₁} idx₁ idx₂ ρ₁ ρ₂ →
@ -224,6 +213,10 @@ EndToEndTrace-singleton ρ₁⇒ρ₂ = record
EndToEndTrace-singleton[] : ∀ (ρ : Env) → EndToEndTrace {singleton []} ρ ρ
EndToEndTrace-singleton[] env = EndToEndTrace-singleton []
EndToEndTrace-wrap : ∀ {g : Graph} {ρ₁ ρ₂ : Env} →
EndToEndTrace {g} ρ₁ ρ₂ → EndToEndTrace {wrap g} ρ₁ ρ₂
EndToEndTrace-wrap {g} {ρ₁} {ρ₂} etr = EndToEndTrace-singleton[] ρ₁ ++ etr ++ EndToEndTrace-singleton[] ρ₂
buildCfg-sufficient : ∀ {s : Stmt} {ρ₁ ρ₂ : Env} → ρ₁ , s ⇒ˢ ρ₂ →
EndToEndTrace {buildCfg s} ρ₁ ρ₂
buildCfg-sufficient (⇒ˢ-⟨⟩ ρ₁ ρ₂ bs ρ₁,bs⇒ρ₂) =