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Merged
merged 1 commit into from
May 5, 2025
Merged

Fetching from the base layer #9

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1 change: 1 addition & 0 deletions formal-spec/Leios/Base.agda
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Expand Up @@ -36,6 +36,7 @@ record BaseAbstract : Type₁ where
_-⟦_/_⟧⇀_ : State → Input → Output → State → Type
⦃ Dec-_-⟦_/_⟧⇀_ ⦄ : {s : State} → {i : Input} → {o : Output} → {s' : State} → (s -⟦ i / o ⟧⇀ s') ⁇
SUBMIT-total : ∀ {s b} → ∃[ s' ] s -⟦ SUBMIT b / EMPTY ⟧⇀ s'
FTCH-total : ∀ {s} → ∃[ r ] (∃[ s' ] (s -⟦ FTCH-LDG / BASE-LDG r ⟧⇀ s'))

open Input public
open Output public
1 change: 1 addition & 0 deletions formal-spec/Leios/Defaults.agda
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Expand Up @@ -105,6 +105,7 @@ d-BaseFunctionality =
; _-⟦_/_⟧⇀_ = λ _ _ _ _ → ⊤
; Dec-_-⟦_/_⟧⇀_ = ⁇ (yes tt)
; SUBMIT-total = tt , tt
; FTCH-total = [] , tt , tt
}

open import Leios.FFD public
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18 changes: 12 additions & 6 deletions formal-spec/Leios/Short/Trace/Verifier.agda
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Expand Up @@ -93,9 +93,10 @@ data ValidAction : Action → LeiosState → LeiosInput → Type where
ValidAction No-VT-Role-Action s SLOT

Slot : let open LeiosState s renaming (FFDState to ffds; BaseState to bs)
(res , (bs' , _)) = B.FTCH-total {bs}
(msgs , (ffds' , _)) = FFD.Fetch-total {ffds}
in .(allDone s) →
.(bs B.-⟦ B.FTCH-LDG / B.BASE-LDG [] ⟧⇀ tt) →
.(bs B.-⟦ B.FTCH-LDG / B.BASE-LDG res ⟧⇀ bs') →
.(ffds FFD.-⟦ FFD.Fetch / FFD.FetchRes msgs ⟧⇀ ffds') →
ValidAction (Slot-Action slot) s SLOT

Expand Down Expand Up @@ -142,21 +143,26 @@ private variable
⟦ No-EB-Role {s} _ _ ⟧ = addUpkeep s EB-Role , EMPTY
⟦ No-VT-Role {s} _ _ ⟧ = addUpkeep s VT-Role , EMPTY
⟦ Slot {s} _ _ _ ⟧ =
let open LeiosState s renaming (FFDState to ffds)
let open LeiosState s renaming (FFDState to ffds; BaseState to bs)
(res , (bs' , _)) = B.FTCH-total {bs}
(msgs , (ffds' , _)) = FFD.Fetch-total {ffds}
in
(record s
{ FFDState = ffds'
; BaseState = tt
; Ledger = constructLedger []
; BaseState = bs'
; Ledger = constructLedger res
; slot = suc slot
; Upkeep = ∅
} ↑ L.filter (isValid? s) msgs
, EMPTY)
⟦ Ftch {s} ⟧ = s , FTCH-LDG (LeiosState.Ledger s)
⟦ Base₁ {s} {txs} ⟧ = record s { ToPropose = txs } , EMPTY
⟦ Base₂a {s} _ _ _ ⟧ = addUpkeep record s { BaseState = tt } Base , EMPTY
⟦ Base₂b {s} _ _ _ ⟧ = addUpkeep record s { BaseState = tt } Base , EMPTY
⟦ Base₂a {s} {eb} _ _ _ ⟧ =
let (bs' , _) = B.SUBMIT-total {LeiosState.BaseState s} {this eb}
in addUpkeep record s { BaseState = bs' } Base , EMPTY
⟦ Base₂b {s} _ _ _ ⟧ =
let (bs' , _) = B.SUBMIT-total {LeiosState.BaseState s} {that (LeiosState.ToPropose s)}
in addUpkeep record s { BaseState = bs' } Base , EMPTY

open LeiosState
open FFDBuffers
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