mirror of
https://github.com/luau-lang/luau.git
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Prototype: added syntax for optional type annotations (#358)
This commit is contained in:
Alan Jeffrey
GitHub
parent
db90c7da48
commit
e0a9bc191a
@ -1,11 +1,9 @@
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module Examples.OpSem where
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open import Luau.OpSem using (_⊢_⟶ᴱ_⊣_; _⊢_⟶ᴮ_⊣_; subst)
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open import Luau.Syntax using (var; nil; local_←_; _∙_; done; return)
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open import Luau.Heap using (emp)
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open import Luau.Syntax using (Block; var; nil; local_←_; _∙_; done; return; block_is_end)
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open import Luau.Heap using (∅)
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x = var "x"
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ex1 : emp ⊢ (local "x" ← nil ∙ return x ∙ done) ⟶ᴮ (return nil ∙ done) ⊣ emp
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ex1 : ∅ ⊢ (local (var "x") ← nil ∙ return (var "x") ∙ done) ⟶ᴮ (return nil ∙ done) ⊣ ∅
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ex1 = subst
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@ -3,16 +3,13 @@
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module Examples.Run where
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open import Agda.Builtin.Equality using (_≡_; refl)
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open import Luau.Syntax using (nil; var; _$_; function_⟨_⟩_end; return; _∙_; done)
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open import Luau.Syntax using (nil; var; _$_; function_is_end; return; _∙_; done; _⟨_⟩)
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open import Luau.Value using (nil)
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open import Luau.Run using (run; return)
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open import Luau.Heap using (emp; lookup-next; next-emp; lookup-next-emp)
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open import Luau.Heap using (lookup-next; next-emp; lookup-next-emp)
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import Agda.Builtin.Equality.Rewrite
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{-# REWRITE lookup-next next-emp lookup-next-emp #-}
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x = var "x"
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id = var "id"
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ex1 : (run (function "id" ⟨ "x" ⟩ return x ∙ done end ∙ return (id $ nil) ∙ done) ≡ return nil _)
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ex1 : (run (function "id" ⟨ var "x" ⟩ is return (var "x") ∙ done end ∙ return (var "id" $ nil) ∙ done) ≡ return nil _)
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ex1 = refl
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@ -2,21 +2,21 @@ module Examples.Syntax where
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open import Agda.Builtin.Equality using (_≡_; refl)
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open import FFI.Data.String using (_++_)
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open import Luau.Syntax using (var; _$_; return; nil; function_⟨_⟩_end; done; _∙_)
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open import Luau.Syntax using (var; _$_; return; nil; function_is_end; local_←_; done; _∙_; _⟨_⟩)
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open import Luau.Syntax.ToString using (exprToString; blockToString)
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f = var "f"
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x = var "x"
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ex1 : exprToString(f $ x) ≡
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"f(x)"
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ex1 : exprToString(function "" ⟨ var "x" ⟩ is return (var "f" $ var "x") ∙ done end) ≡
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"function(x)\n" ++
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" return f(x)\n" ++
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"end"
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ex1 = refl
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ex2 : blockToString(return nil ∙ done) ≡
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"return nil"
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ex2 : blockToString(local var "x" ← nil ∙ return (var "x") ∙ done) ≡
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"local x = nil\n" ++
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"return x"
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ex2 = refl
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ex3 : blockToString(function "f" ⟨ "x" ⟩ return x ∙ done end ∙ return f ∙ done) ≡
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ex3 : blockToString(function "f" ⟨ var "x" ⟩ is return (var "x") ∙ done end ∙ return (var "f") ∙ done) ≡
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"local function f(x)\n" ++
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" return x\n" ++
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"end\n" ++
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@ -18,7 +18,7 @@ open import Luau.Run using (run; return; done; error)
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open import Luau.RuntimeError.ToString using (errToStringᴮ)
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open import Luau.Value.ToString using (valueToString)
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runBlock : Block → IO ⊤
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runBlock : ∀ {a} → Block a → IO ⊤
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runBlock block with run block
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runBlock block | return V D = putStrLn (valueToString V)
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runBlock block | done D = putStrLn "nil"
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@ -5,39 +5,40 @@ open import FFI.Data.Maybe using (Maybe; just)
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open import FFI.Data.Vector using (Vector; length; snoc; empty)
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open import Luau.Addr using (Addr)
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open import Luau.Var using (Var)
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open import Luau.Syntax using (Block; Expr; nil; addr; function⟨_⟩_end)
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open import Luau.Syntax using (Block; Expr; Annotated; FunDec; nil; addr; function_is_end)
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data HeapValue : Set where
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function_⟨_⟩_end : Var → Var → Block → HeapValue
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data HeapValue (a : Annotated) : Set where
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function_is_end : FunDec a → Block a → HeapValue a
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Heap = Vector HeapValue
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Heap : Annotated → Set
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Heap a = Vector (HeapValue a)
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data _≡_⊕_↦_ : Heap → Heap → Addr → HeapValue → Set where
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data _≡_⊕_↦_ {a} : Heap a → Heap a → Addr → HeapValue a → Set where
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defn : ∀ {H val} →
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-----------------------------------
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(snoc H val) ≡ H ⊕ (length H) ↦ val
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lookup : Heap → Addr → Maybe HeapValue
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lookup = FFI.Data.Vector.lookup
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_[_] : ∀ {a} → Heap a → Addr → Maybe (HeapValue a)
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_[_] = FFI.Data.Vector.lookup
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emp : Heap
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emp = empty
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∅ : ∀ {a} → Heap a
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∅ = empty
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data AllocResult (H : Heap) (V : HeapValue) : Set where
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ok : ∀ a H′ → (H′ ≡ H ⊕ a ↦ V) → AllocResult H V
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data AllocResult a (H : Heap a) (V : HeapValue a) : Set where
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ok : ∀ b H′ → (H′ ≡ H ⊕ b ↦ V) → AllocResult a H V
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alloc : ∀ H V → AllocResult H V
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alloc : ∀ {a} H V → AllocResult a H V
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alloc H V = ok (length H) (snoc H V) defn
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next : Heap → Addr
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next : ∀ {a} → Heap a → Addr
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next = length
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allocated : Heap → HeapValue → Heap
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allocated : ∀ {a} → Heap a → HeapValue a → Heap a
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allocated = snoc
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-- next-emp : (length empty ≡ 0)
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-- next-emp : (length ∅ ≡ 0)
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next-emp = FFI.Data.Vector.length-empty
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-- lookup-next : ∀ V H → (lookup (allocated H V) (next H) ≡ just V)
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@ -2,13 +2,13 @@ module Luau.OpSem where
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open import Agda.Builtin.Equality using (_≡_)
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open import FFI.Data.Maybe using (just)
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open import Luau.Heap using (Heap; _≡_⊕_↦_; lookup; function_⟨_⟩_end)
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open import Luau.Heap using (Heap; _≡_⊕_↦_; _[_]; function_is_end)
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open import Luau.Substitution using (_[_/_]ᴮ)
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open import Luau.Syntax using (Expr; Stat; Block; nil; addr; var; function⟨_⟩_end; _$_; block_is_end; local_←_; _∙_; done; function_⟨_⟩_end; return)
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open import Luau.Syntax using (Expr; Stat; Block; nil; addr; var; function_is_end; _$_; block_is_end; local_←_; _∙_; done; return; name; fun; arg)
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open import Luau.Value using (addr; val)
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data _⊢_⟶ᴮ_⊣_ : Heap → Block → Block → Heap → Set
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data _⊢_⟶ᴱ_⊣_ : Heap → Expr → Expr → Heap → Set
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data _⊢_⟶ᴮ_⊣_ {a} : Heap a → Block a → Block a → Heap a → Set
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data _⊢_⟶ᴱ_⊣_ {a} : Heap a → Expr a → Expr a → Heap a → Set
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data _⊢_⟶ᴱ_⊣_ where
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@ -17,11 +17,11 @@ data _⊢_⟶ᴱ_⊣_ where
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-------------------
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H ⊢ nil ⟶ᴱ nil ⊣ H
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function : ∀ {H H′ a x B} →
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function : ∀ {H H′ a F B} →
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H′ ≡ H ⊕ a ↦ (function "anon" ⟨ x ⟩ B end) →
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H′ ≡ H ⊕ a ↦ (function F is B end) →
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-------------------------------------------
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H ⊢ (function⟨ x ⟩ B end) ⟶ᴱ (addr a) ⊣ H′
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H ⊢ (function F is B end) ⟶ᴱ (addr a) ⊣ H′
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app : ∀ {H H′ M M′ N} →
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@ -29,11 +29,11 @@ data _⊢_⟶ᴱ_⊣_ where
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-----------------------------
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H ⊢ (M $ N) ⟶ᴱ (M′ $ N) ⊣ H′
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beta : ∀ {H M a f x B} →
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beta : ∀ {H M a F B} →
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(lookup H a) ≡ just(function f ⟨ x ⟩ B end) →
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H [ a ] ≡ just(function F is B end) →
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-----------------------------------------------------
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H ⊢ (addr a $ M) ⟶ᴱ (block f is local x ← M ∙ B end) ⊣ H
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H ⊢ (addr a $ M) ⟶ᴱ (block (fun F) is local (arg F) ← M ∙ B end) ⊣ H
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block : ∀ {H H′ B B′ b} →
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@ -61,14 +61,14 @@ data _⊢_⟶ᴮ_⊣_ where
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subst : ∀ {H x v B} →
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-------------------------------------------------
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H ⊢ (local x ← val v ∙ B) ⟶ᴮ (B [ v / x ]ᴮ) ⊣ H
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------------------------------------------------------
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H ⊢ (local x ← val v ∙ B) ⟶ᴮ (B [ v / name x ]ᴮ) ⊣ H
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function : ∀ {H H′ a f x B C} →
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function : ∀ {H H′ a F B C} →
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H′ ≡ H ⊕ a ↦ (function f ⟨ x ⟩ C end) →
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H′ ≡ H ⊕ a ↦ (function F is C end) →
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--------------------------------------------------------------
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H ⊢ (function f ⟨ x ⟩ C end ∙ B) ⟶ᴮ (B [ addr a / f ]ᴮ) ⊣ H′
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H ⊢ (function F is C end ∙ B) ⟶ᴮ (B [ addr a / fun F ]ᴮ) ⊣ H′
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return : ∀ {H H′ M M′ B} →
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@ -76,7 +76,7 @@ data _⊢_⟶ᴮ_⊣_ where
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--------------------------------------------
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H ⊢ (return M ∙ B) ⟶ᴮ (return M′ ∙ B) ⊣ H′
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data _⊢_⟶*_⊣_ : Heap → Block → Block → Heap → Set where
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data _⊢_⟶*_⊣_ {a} : Heap a → Block a → Block a → Heap a → Set where
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refl : ∀ {H B} →
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@ -1,20 +1,20 @@
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module Luau.Run where
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open import Agda.Builtin.Equality using (_≡_; refl)
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open import Luau.Heap using (Heap; emp)
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open import Luau.Heap using (Heap; ∅)
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open import Luau.Syntax using (Block; return; _∙_; done)
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open import Luau.OpSem using (_⊢_⟶*_⊣_; refl; step)
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open import Luau.Value using (val)
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open import Properties.Step using (stepᴮ; step; return; done; error)
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open import Luau.RuntimeError using (RuntimeErrorᴮ)
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data RunResult (H : Heap) (B : Block) : Set where
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data RunResult {a} (H : Heap a) (B : Block a) : Set where
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return : ∀ V {B′ H′} → (H ⊢ B ⟶* (return (val V) ∙ B′) ⊣ H′) → RunResult H B
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done : ∀ {H′} → (H ⊢ B ⟶* done ⊣ H′) → RunResult H B
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error : ∀ {B′ H′} → (RuntimeErrorᴮ H′ B′) → (H ⊢ B ⟶* B′ ⊣ H′) → RunResult H B
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{-# TERMINATING #-}
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run′ : ∀ H B → RunResult H B
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run′ : ∀ {a} H B → RunResult {a} H B
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run′ H B with stepᴮ H B
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run′ H B | step H′ B′ D with run′ H′ B′
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run′ H B | step H′ B′ D | return V D′ = return V (step D D′)
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@ -24,5 +24,5 @@ run′ H _ | return V refl = return V refl
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run′ H _ | done refl = done refl
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run′ H B | error E = error E refl
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run : ∀ B → RunResult emp B
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run = run′ emp
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run : ∀ {a} B → RunResult {a} ∅ B
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run = run′ ∅
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@ -1,17 +1,17 @@
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module Luau.RuntimeError where
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open import Agda.Builtin.Equality using (_≡_)
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open import Luau.Heap using (Heap; lookup)
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open import Luau.Heap using (Heap; _[_])
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open import FFI.Data.Maybe using (just; nothing)
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open import Luau.Syntax using (Block; Expr; nil; var; addr; function⟨_⟩_end; block_is_end; _$_; local_←_; function_⟨_⟩_end; return; done; _∙_)
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open import Luau.Syntax using (Block; Expr; nil; var; addr; block_is_end; _$_; local_←_; return; done; _∙_)
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data RuntimeErrorᴮ (H : Heap) : Block → Set
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data RuntimeErrorᴱ (H : Heap) : Expr → Set
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data RuntimeErrorᴮ {a} (H : Heap a) : Block a → Set
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data RuntimeErrorᴱ {a} (H : Heap a) : Expr a → Set
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data RuntimeErrorᴱ H where
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NilIsNotAFunction : ∀ {M} → RuntimeErrorᴱ H (nil $ M)
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UnboundVariable : ∀ x → RuntimeErrorᴱ H (var x)
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SEGV : ∀ a → (lookup H a ≡ nothing) → RuntimeErrorᴱ H (addr a)
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SEGV : ∀ a → (H [ a ] ≡ nothing) → RuntimeErrorᴱ H (addr a)
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app : ∀ {M N} → RuntimeErrorᴱ H M → RuntimeErrorᴱ H (M $ N)
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block : ∀ b {B} → RuntimeErrorᴮ H B → RuntimeErrorᴱ H (block b is B end)
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@ -4,9 +4,10 @@ open import FFI.Data.String using (String; _++_)
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open import Luau.RuntimeError using (RuntimeErrorᴮ; RuntimeErrorᴱ; local; return; NilIsNotAFunction; UnboundVariable; SEGV; app; block)
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open import Luau.Addr.ToString using (addrToString)
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open import Luau.Var.ToString using (varToString)
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open import Luau.Syntax using (name)
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errToStringᴱ : ∀ {H B} → RuntimeErrorᴱ H B → String
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errToStringᴮ : ∀ {H B} → RuntimeErrorᴮ H B → String
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errToStringᴱ : ∀ {a H B} → RuntimeErrorᴱ {a} H B → String
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errToStringᴮ : ∀ {a H B} → RuntimeErrorᴮ {a} H B → String
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errToStringᴱ NilIsNotAFunction = "nil is not a function"
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errToStringᴱ (UnboundVariable x) = "variable " ++ varToString x ++ " is unbound"
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@ -14,5 +15,5 @@ errToStringᴱ (SEGV a x) = "address " ++ addrToString a ++ " is unallocated"
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errToStringᴱ (app E) = errToStringᴱ E
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errToStringᴱ (block b E) = errToStringᴮ E ++ "\n in call of function " ++ varToString b
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errToStringᴮ (local x E) = errToStringᴱ E ++ "\n in definition of " ++ varToString x
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errToStringᴮ (local x E) = errToStringᴱ E ++ "\n in definition of " ++ varToString (name x)
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errToStringᴮ (return E) = errToStringᴱ E ++ "\n in return statement"
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@ -1,24 +1,24 @@
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module Luau.Substitution where
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open import Luau.Syntax using (Expr; Stat; Block; nil; addr; var; function⟨_⟩_end; _$_; block_is_end; local_←_; _∙_; done; function_⟨_⟩_end; return)
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open import Luau.Syntax using (Expr; Stat; Block; nil; addr; var; function_is_end; _$_; block_is_end; local_←_; _∙_; done; return; _⟨_⟩ ; name; fun; arg)
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open import Luau.Value using (Value; val)
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open import Luau.Var using (Var; _≡ⱽ_)
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open import Properties.Dec using (Dec; yes; no)
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_[_/_]ᴱ : Expr → Value → Var → Expr
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_[_/_]ᴮ : Block → Value → Var → Block
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var_[_/_]ᴱwhenever_ : ∀ {P} → Var → Value → Var → (Dec P) → Expr
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_[_/_]ᴮunless_ : ∀ {P} → Block → Value → Var → (Dec P) → Block
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_[_/_]ᴱ : ∀ {a} → Expr a → Value → Var → Expr a
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_[_/_]ᴮ : ∀ {a} → Block a → Value → Var → Block a
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var_[_/_]ᴱwhenever_ : ∀ {a P} → Var → Value → Var → (Dec P) → Expr a
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_[_/_]ᴮunless_ : ∀ {a P} → Block a → Value → Var → (Dec P) → Block a
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nil [ v / x ]ᴱ = nil
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var y [ v / x ]ᴱ = var y [ v / x ]ᴱwhenever (x ≡ⱽ y)
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addr a [ v / x ]ᴱ = addr a
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(M $ N) [ v / x ]ᴱ = (M [ v / x ]ᴱ) $ (N [ v / x ]ᴱ)
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function⟨ y ⟩ C end [ v / x ]ᴱ = function⟨ y ⟩ C [ v / x ]ᴮunless (x ≡ⱽ y) end
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function F is C end [ v / x ]ᴱ = function F is C [ v / x ]ᴮunless (x ≡ⱽ name(arg F)) end
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block b is C end [ v / x ]ᴱ = block b is C [ v / x ]ᴮ end
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(function f ⟨ y ⟩ C end ∙ B) [ v / x ]ᴮ = function f ⟨ y ⟩ (C [ v / x ]ᴮunless (x ≡ⱽ y)) end ∙ (B [ v / x ]ᴮunless (x ≡ⱽ f))
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(local y ← M ∙ B) [ v / x ]ᴮ = local y ← (M [ v / x ]ᴱ) ∙ (B [ v / x ]ᴮunless (x ≡ⱽ y))
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(function F is C end ∙ B) [ v / x ]ᴮ = function F is (C [ v / x ]ᴮunless (x ≡ⱽ name(arg F))) end ∙ (B [ v / x ]ᴮunless (x ≡ⱽ fun F))
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(local y ← M ∙ B) [ v / x ]ᴮ = local y ← (M [ v / x ]ᴱ) ∙ (B [ v / x ]ᴮunless (x ≡ⱽ name y))
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(return M ∙ B) [ v / x ]ᴮ = return (M [ v / x ]ᴱ) ∙ (B [ v / x ]ᴮ)
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done [ v / x ]ᴮ = done
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@ -1,27 +1,55 @@
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module Luau.Syntax where
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open import Agda.Builtin.Equality using (_≡_)
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open import Properties.Dec using (⊥)
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open import Luau.Var using (Var)
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open import Luau.Addr using (Addr)
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open import Luau.Type using (Type)
|
||||
|
||||
infixr 5 _∙_
|
||||
|
||||
data Block : Set
|
||||
data Stat : Set
|
||||
data Expr : Set
|
||||
data Annotated : Set where
|
||||
maybe : Annotated
|
||||
yes : Annotated
|
||||
|
||||
data Block where
|
||||
_∙_ : Stat → Block → Block
|
||||
done : Block
|
||||
data VarDec : Annotated → Set where
|
||||
var : Var → VarDec maybe
|
||||
var_∈_ : ∀ {a} → Var → Type → VarDec a
|
||||
|
||||
data Stat where
|
||||
function_⟨_⟩_end : Var → Var → Block → Stat
|
||||
local_←_ : Var → Expr → Stat
|
||||
return : Expr → Stat
|
||||
name : ∀ {a} → VarDec a → Var
|
||||
name (var x) = x
|
||||
name (var x ∈ T) = x
|
||||
|
||||
data FunDec : Annotated → Set where
|
||||
_⟨_⟩∈_ : ∀ {a} → Var → VarDec a → Type → FunDec a
|
||||
_⟨_⟩ : Var → VarDec maybe → FunDec maybe
|
||||
|
||||
fun : ∀ {a} → FunDec a → Var
|
||||
fun (f ⟨ x ⟩∈ T) = f
|
||||
fun (f ⟨ x ⟩) = f
|
||||
|
||||
arg : ∀ {a} → FunDec a → VarDec a
|
||||
arg (f ⟨ x ⟩∈ T) = x
|
||||
arg (f ⟨ x ⟩) = x
|
||||
|
||||
data Block (a : Annotated) : Set
|
||||
data Stat (a : Annotated) : Set
|
||||
data Expr (a : Annotated) : Set
|
||||
|
||||
data Block a where
|
||||
_∙_ : Stat a → Block a → Block a
|
||||
done : Block a
|
||||
|
||||
data Stat a where
|
||||
function_is_end : FunDec a → Block a → Stat a
|
||||
local_←_ : VarDec a → Expr a → Stat a
|
||||
return : Expr a → Stat a
|
||||
|
||||
data Expr a where
|
||||
nil : Expr a
|
||||
var : Var → Expr a
|
||||
addr : Addr → Expr a
|
||||
_$_ : Expr a → Expr a → Expr a
|
||||
function_is_end : FunDec a → Block a → Expr a
|
||||
block_is_end : Var → Block a → Expr a
|
||||
|
||||
data Expr where
|
||||
nil : Expr
|
||||
var : Var → Expr
|
||||
addr : Addr → Expr
|
||||
_$_ : Expr → Expr → Expr
|
||||
function⟨_⟩_end : Var → Block → Expr
|
||||
block_is_end : Var → Block → Expr
|
||||
|
||||
@ -1,6 +1,6 @@
|
||||
module Luau.Syntax.FromJSON where
|
||||
|
||||
open import Luau.Syntax using (Block; Stat ; Expr; nil; _$_; var; function⟨_⟩_end; local_←_; function_⟨_⟩_end; return; done; _∙_)
|
||||
open import Luau.Syntax using (Block; Stat ; Expr; nil; _$_; var; function_is_end; _⟨_⟩; local_←_; return; done; _∙_; maybe)
|
||||
|
||||
open import Agda.Builtin.List using (List; _∷_; [])
|
||||
|
||||
@ -31,12 +31,12 @@ lookupIn (key ∷ keys) obj with lookup (fromString key) obj
|
||||
lookupIn (key ∷ keys) obj | nothing = lookupIn keys obj
|
||||
lookupIn (key ∷ keys) obj | just value = (key , value)
|
||||
|
||||
exprFromJSON : Value → Either String Expr
|
||||
exprFromObject : Object → Either String Expr
|
||||
statFromJSON : Value → Either String Stat
|
||||
statFromObject : Object → Either String Stat
|
||||
blockFromJSON : Value → Either String Block
|
||||
blockFromArray : Array → Either String Block
|
||||
exprFromJSON : Value → Either String (Expr maybe)
|
||||
exprFromObject : Object → Either String (Expr maybe)
|
||||
statFromJSON : Value → Either String (Stat maybe)
|
||||
statFromObject : Object → Either String (Stat maybe)
|
||||
blockFromJSON : Value → Either String (Block maybe)
|
||||
blockFromArray : Array → Either String (Block maybe)
|
||||
|
||||
exprFromJSON (object obj) = exprFromObject obj
|
||||
exprFromJSON val = Left "AstExpr not an object"
|
||||
@ -55,7 +55,7 @@ exprFromObject obj | just (string "AstExprCall") | _ | nothing = Left ("AstExpr
|
||||
exprFromObject obj | just (string "AstExprConstantNil") = Right nil
|
||||
exprFromObject obj | just (string "AstExprFunction") with lookup args obj | lookup body obj
|
||||
exprFromObject obj | just (string "AstExprFunction") | just (array arr) | just value with head arr | blockFromJSON value
|
||||
exprFromObject obj | just (string "AstExprFunction") | just (array arr) | just value | just (string x) | Right B = Right (function⟨ x ⟩ B end)
|
||||
exprFromObject obj | just (string "AstExprFunction") | just (array arr) | just value | just (string x) | Right B = Right (function "" ⟨ var x ⟩ is B end)
|
||||
exprFromObject obj | just (string "AstExprFunction") | just (array arr) | just value | just _ | Right B = Left "AstExprFunction args not a string array"
|
||||
exprFromObject obj | just (string "AstExprFunction") | just (array arr) | just value | nothing | Right B = Left "Unsupported AstExprFunction empty args"
|
||||
exprFromObject obj | just (string "AstExprFunction") | just (array arr) | just value | _ | Left err = Left err
|
||||
@ -78,7 +78,7 @@ statFromObject obj with lookup type obj
|
||||
statFromObject obj | just(string "AstStatLocal") with lookup vars obj | lookup values obj
|
||||
statFromObject obj | just(string "AstStatLocal") | just(array arr1) | just(array arr2) with head(arr1) | head(arr2)
|
||||
statFromObject obj | just(string "AstStatLocal") | just(array arr1) | just(array arr2) | just(string x) | just(value) with exprFromJSON(value)
|
||||
statFromObject obj | just(string "AstStatLocal") | just(array arr1) | just(array arr2) | just(string x) | just(value) | Right M = Right (local x ← M)
|
||||
statFromObject obj | just(string "AstStatLocal") | just(array arr1) | just(array arr2) | just(string x) | just(value) | Right M = Right (local (var x) ← M)
|
||||
statFromObject obj | just(string "AstStatLocal") | just(array arr1) | just(array arr2) | just(string x) | just(value) | Left err = Left err
|
||||
statFromObject obj | just(string "AstStatLocal") | just(array arr1) | just(array arr2) | just(string x) | nothing = Left "AstStatLocal empty values"
|
||||
statFromObject obj | just(string "AstStatLocal") | just(array arr1) | just(array arr2) | just(_) | _ = Left "AstStatLocal vars not a string array"
|
||||
@ -89,7 +89,7 @@ statFromObject obj | just(string "AstStatLocal") | just(_) | nothing = Left "Ast
|
||||
statFromObject obj | just(string "AstStatLocal") | nothing | _ = Left "AstStatLocal missing vars"
|
||||
statFromObject obj | just(string "AstStatLocalFunction") with lookup name obj | lookup func obj
|
||||
statFromObject obj | just(string "AstStatLocalFunction") | just (string f) | just value with exprFromJSON value
|
||||
statFromObject obj | just(string "AstStatLocalFunction") | just (string f) | just value | Right (function⟨ x ⟩ B end) = Right (function f ⟨ x ⟩ B end)
|
||||
statFromObject obj | just(string "AstStatLocalFunction") | just (string f) | just value | Right (function "" ⟨ x ⟩ is B end) = Right (function f ⟨ x ⟩ is B end)
|
||||
statFromObject obj | just(string "AstStatLocalFunction") | just (string f) | just value | Left err = Left err
|
||||
statFromObject obj | just(string "AstStatLocalFunction") | just _ | just _ | Right _ = Left "AstStatLocalFunction func is not an AstExprFunction"
|
||||
statFromObject obj | just(string "AstStatLocalFunction") | just _ | just _ = Left "AstStatLocalFunction name is not a string"
|
||||
|
||||
@ -1,13 +1,24 @@
|
||||
module Luau.Syntax.ToString where
|
||||
|
||||
open import Luau.Syntax using (Block; Stat; Expr; nil; var; addr; _$_; function⟨_⟩_end; return; function_⟨_⟩_end ;local_←_; _∙_; done; block_is_end)
|
||||
open import Luau.Syntax using (Block; Stat; Expr; VarDec; FunDec; nil; var; var_∈_; addr; _$_; function_is_end; return; local_←_; _∙_; done; block_is_end; _⟨_⟩; _⟨_⟩∈_)
|
||||
open import FFI.Data.String using (String; _++_)
|
||||
open import Luau.Addr.ToString using (addrToString)
|
||||
open import Luau.Type.ToString using (typeToString)
|
||||
open import Luau.Var.ToString using (varToString)
|
||||
|
||||
exprToString′ : String → Expr → String
|
||||
statToString′ : String → Stat → String
|
||||
blockToString′ : String → Block → String
|
||||
varDecToString : ∀ {a} → VarDec a → String
|
||||
varDecToString (var x) = varToString x
|
||||
varDecToString (var x ∈ T) = varToString x ++ " : " ++ typeToString T
|
||||
|
||||
funDecToString : ∀ {a} → FunDec a → String
|
||||
funDecToString ("" ⟨ x ⟩∈ T) = "function(" ++ varDecToString x ++ "): " ++ typeToString T
|
||||
funDecToString ("" ⟨ x ⟩) = "function(" ++ varDecToString x ++ ")"
|
||||
funDecToString (f ⟨ x ⟩∈ T) = "function " ++ varToString f ++ "(" ++ varDecToString x ++ "): " ++ typeToString T
|
||||
funDecToString (f ⟨ x ⟩) = "function " ++ varToString f ++ "(" ++ varDecToString x ++ ")"
|
||||
|
||||
exprToString′ : ∀ {a} → String → Expr a → String
|
||||
statToString′ : ∀ {a} → String → Stat a → String
|
||||
blockToString′ : ∀ {a} → String → Block a → String
|
||||
|
||||
exprToString′ lb nil =
|
||||
"nil"
|
||||
@ -17,21 +28,21 @@ exprToString′ lb (var x) =
|
||||
varToString(x)
|
||||
exprToString′ lb (M $ N) =
|
||||
(exprToString′ lb M) ++ "(" ++ (exprToString′ lb N) ++ ")"
|
||||
exprToString′ lb (function⟨ x ⟩ B end) =
|
||||
"function(" ++ x ++ ")" ++ lb ++
|
||||
exprToString′ lb (function F is B end) =
|
||||
funDecToString F ++ lb ++
|
||||
" " ++ (blockToString′ (lb ++ " ") B) ++ lb ++
|
||||
"end"
|
||||
exprToString′ lb (block b is B end) =
|
||||
"(function " ++ b ++ "()" ++ lb ++
|
||||
"(" ++ b ++ "()" ++ lb ++
|
||||
" " ++ (blockToString′ (lb ++ " ") B) ++ lb ++
|
||||
"end)()"
|
||||
|
||||
statToString′ lb (function f ⟨ x ⟩ B end) =
|
||||
"local function " ++ f ++ "(" ++ x ++ ")" ++ lb ++
|
||||
statToString′ lb (function F is B end) =
|
||||
"local " ++ funDecToString F ++ lb ++
|
||||
" " ++ (blockToString′ (lb ++ " ") B) ++ lb ++
|
||||
"end"
|
||||
statToString′ lb (local x ← M) =
|
||||
"local " ++ x ++ " = " ++ (exprToString′ lb M)
|
||||
"local " ++ varDecToString x ++ " = " ++ (exprToString′ lb M)
|
||||
statToString′ lb (return M) =
|
||||
"return " ++ (exprToString′ lb M)
|
||||
|
||||
@ -39,11 +50,11 @@ blockToString′ lb (S ∙ done) = statToString′ lb S
|
||||
blockToString′ lb (S ∙ B) = statToString′ lb S ++ lb ++ blockToString′ lb B
|
||||
blockToString′ lb (done) = ""
|
||||
|
||||
exprToString : Expr → String
|
||||
exprToString : ∀ {a} → Expr a → String
|
||||
exprToString = exprToString′ "\n"
|
||||
|
||||
statToString : Stat → String
|
||||
statToString : ∀ {a} → Stat a → String
|
||||
statToString = statToString′ "\n"
|
||||
|
||||
blockToString : Block → String
|
||||
blockToString : ∀ {a} → Block a → String
|
||||
blockToString = blockToString′ "\n"
|
||||
|
||||
@ -1,14 +1,14 @@
|
||||
module Luau.Value where
|
||||
|
||||
open import Luau.Addr using (Addr)
|
||||
open import Luau.Syntax using (Block; Expr; nil; addr; function⟨_⟩_end)
|
||||
open import Luau.Syntax using (Block; Expr; nil; addr)
|
||||
open import Luau.Var using (Var)
|
||||
|
||||
data Value : Set where
|
||||
nil : Value
|
||||
addr : Addr → Value
|
||||
|
||||
val : Value → Expr
|
||||
val : ∀ {a} → Value → Expr a
|
||||
val nil = nil
|
||||
val (addr a) = addr a
|
||||
|
||||
|
||||
@ -15,7 +15,7 @@ open import Luau.Syntax using (Block)
|
||||
open import Luau.Syntax.FromJSON using (blockFromJSON)
|
||||
open import Luau.Syntax.ToString using (blockToString)
|
||||
|
||||
runBlock : Block → IO ⊤
|
||||
runBlock : ∀ {a} → Block a → IO ⊤
|
||||
runBlock block = putStrLn (blockToString block)
|
||||
|
||||
runJSON : Value → IO ⊤
|
||||
|
||||
@ -2,16 +2,16 @@ module Properties.Step where
|
||||
|
||||
open import Agda.Builtin.Equality using (_≡_; refl)
|
||||
open import FFI.Data.Maybe using (just; nothing)
|
||||
open import Luau.Heap using (Heap; lookup; alloc; ok; function_⟨_⟩_end)
|
||||
open import Luau.Syntax using (Block; Expr; nil; var; addr; function⟨_⟩_end; block_is_end; _$_; local_←_; function_⟨_⟩_end; return; done; _∙_)
|
||||
open import Luau.Heap using (Heap; _[_]; alloc; ok; function_is_end)
|
||||
open import Luau.Syntax using (Block; Expr; nil; var; addr; function_is_end; block_is_end; _$_; local_←_; return; done; _∙_; name; fun; arg)
|
||||
open import Luau.OpSem using (_⊢_⟶ᴱ_⊣_; _⊢_⟶ᴮ_⊣_; app ; beta; function; block; return; done; local; subst)
|
||||
open import Luau.RuntimeError using (RuntimeErrorᴱ; RuntimeErrorᴮ; NilIsNotAFunction; UnboundVariable; SEGV; app; block; local; return)
|
||||
open import Luau.Substitution using (_[_/_]ᴮ)
|
||||
open import Luau.Value using (nil; addr; val)
|
||||
open import Properties.Remember using (remember; _,_)
|
||||
|
||||
data StepResultᴮ (H : Heap) (B : Block) : Set
|
||||
data StepResultᴱ (H : Heap) (M : Expr) : Set
|
||||
data StepResultᴮ {a} (H : Heap a) (B : Block a) : Set
|
||||
data StepResultᴱ {a} (H : Heap a) (M : Expr a) : Set
|
||||
|
||||
data StepResultᴮ H B where
|
||||
step : ∀ H′ B′ → (H ⊢ B ⟶ᴮ B′ ⊣ H′) → StepResultᴮ H B
|
||||
@ -24,8 +24,8 @@ data StepResultᴱ H M where
|
||||
value : ∀ V → (M ≡ val V) → StepResultᴱ H M
|
||||
error : (RuntimeErrorᴱ H M) → StepResultᴱ H M
|
||||
|
||||
stepᴱ : ∀ H M → StepResultᴱ H M
|
||||
stepᴮ : ∀ H B → StepResultᴮ H B
|
||||
stepᴱ : ∀ {a} H M → StepResultᴱ {a} H M
|
||||
stepᴮ : ∀ {a} H B → StepResultᴮ {a} H B
|
||||
|
||||
stepᴱ H nil = value nil refl
|
||||
stepᴱ H (var x) = error (UnboundVariable x)
|
||||
@ -33,23 +33,23 @@ stepᴱ H (addr a) = value (addr a) refl
|
||||
stepᴱ H (M $ N) with stepᴱ H M
|
||||
stepᴱ H (M $ N) | step H′ M′ D = step H′ (M′ $ N) (app D)
|
||||
stepᴱ H (nil $ N) | value nil refl = error NilIsNotAFunction
|
||||
stepᴱ H (addr a $ N) | value (addr a) refl with remember (lookup H a)
|
||||
stepᴱ H (addr a $ N) | value (addr a) refl with remember (H [ a ])
|
||||
stepᴱ H (addr a $ N) | value (addr a) refl | (nothing , p) = error (app (SEGV a p))
|
||||
stepᴱ H (addr a $ N) | value (addr a) refl | (just(function f ⟨ x ⟩ B end) , p) = step H (block f is local x ← N ∙ B end) (beta p)
|
||||
stepᴱ H (addr a $ N) | value (addr a) refl | (just(function F is B end) , p) = step H (block fun F is (local arg F ← N) ∙ B end) (beta p)
|
||||
stepᴱ H (M $ N) | error E = error (app E)
|
||||
stepᴱ H (function⟨ x ⟩ B end) with alloc H (function "anon" ⟨ x ⟩ B end)
|
||||
stepᴱ H (function⟨ x ⟩ B end) | ok a H′ p = step H′ (addr a) (function p)
|
||||
stepᴱ H (block b is B end) with stepᴮ H B
|
||||
stepᴱ H (block b is B end) | step H′ B′ D = step H′ (block b is B′ end) (block D)
|
||||
stepᴱ H (block b is (return _ ∙ B′) end) | return V refl = step H (val V) return
|
||||
stepᴱ H (block b is done end) | done refl = step H nil done
|
||||
stepᴱ H (block b is B end) | error E = error (block b E)
|
||||
stepᴱ H (function F is C end) with alloc H (function F is C end)
|
||||
stepᴱ H function F is C end | ok a H′ p = step H′ (addr a) (function p)
|
||||
|
||||
stepᴮ H (function f ⟨ x ⟩ C end ∙ B) with alloc H (function f ⟨ x ⟩ C end)
|
||||
stepᴮ H (function f ⟨ x ⟩ C end ∙ B) | ok a H′ p = step H′ (B [ addr a / f ]ᴮ) (function p)
|
||||
stepᴮ H (function F is C end ∙ B) with alloc H (function F is C end)
|
||||
stepᴮ H (function F is C end ∙ B) | ok a H′ p = step H′ (B [ addr a / fun F ]ᴮ) (function p)
|
||||
stepᴮ H (local x ← M ∙ B) with stepᴱ H M
|
||||
stepᴮ H (local x ← M ∙ B) | step H′ M′ D = step H′ (local x ← M′ ∙ B) (local D)
|
||||
stepᴮ H (local x ← _ ∙ B) | value V refl = step H (B [ V / x ]ᴮ) subst
|
||||
stepᴮ H (local x ← _ ∙ B) | value V refl = step H (B [ V / name x ]ᴮ) subst
|
||||
stepᴮ H (local x ← M ∙ B) | error E = error (local x E)
|
||||
stepᴮ H (return M ∙ B) with stepᴱ H M
|
||||
stepᴮ H (return M ∙ B) | step H′ M′ D = step H′ (return M′ ∙ B) (return D)
|
||||
|
||||
Loading…
Reference in New Issue
Block a user