Helper functions for constructing maximally shared expressions from maximally shared expressions. That is, mkAppS f a assumes that f and a are maximally shared.

These functions are in the Internal namespace because they can be easily misused. We use them to construct safe functions.

class Lean.Meta.Sym.Internal.MonadShareCommon (m : Type → Type) : Type

• share1 : Expr → m Expr
• assertShared : Expr → m Unit
• isDebugEnabled : m Bool

@[always_inline]

instance Lean.Meta.Sym.Internal.instMonadShareCommonOfMonadLift (m n : Type → Type) [MonadLift m n] [MonadShareCommon m] : MonadShareCommon n

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def Lean.Meta.Sym.Internal.Sym.share1 (e : Expr) : SymM Expr

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def Lean.Meta.Sym.Internal.Sym.assertShared (e : Expr) : SymM Unit

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instance Lean.Meta.Sym.Internal.instMonadShareCommonSymM : MonadShareCommon SymM

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@[reducible, inline]

abbrev Lean.Meta.Sym.Internal.AlphaShareBuilderM (α : Type) : Type

Helper monad for constructing maximally shared terms. The Bool flag indicates whether it is debug-mode or not.

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• Lean.Meta.Sym.Internal.AlphaShareBuilderM = ReaderT Bool Lean.Meta.Sym.AlphaShareCommonM

@[reducible, inline]

abbrev Lean.Meta.Sym.Internal.liftBuilderM {α : Type} (k : AlphaShareBuilderM α) : SymM α

Helper function for lifting a AlphaShareBuilderM action to GrindM

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def Lean.Meta.Sym.Internal.Builder.share1 (e : Expr) : AlphaShareBuilderM Expr

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def Lean.Meta.Sym.Internal.Builder.assertShared (e : Expr) : AlphaShareBuilderM Unit

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instance Lean.Meta.Sym.Internal.instMonadShareCommonAlphaShareBuilderM : MonadShareCommon AlphaShareBuilderM

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def Lean.Meta.Sym.Internal.mkLitS {m : Type → Type} [MonadShareCommon m] (l : Literal) : m Expr

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• Lean.Meta.Sym.Internal.mkLitS l = Lean.Meta.Sym.Internal.MonadShareCommon.share1 (Lean.Expr.lit l)

def Lean.Meta.Sym.Internal.mkConstS {m : Type → Type} [MonadShareCommon m] (declName : Name) (us : List Level := []) : m Expr

Equations

• Lean.Meta.Sym.Internal.mkConstS declName us = Lean.Meta.Sym.Internal.MonadShareCommon.share1 (Lean.Expr.const declName us)

def Lean.Meta.Sym.Internal.mkBVarS {m : Type → Type} [MonadShareCommon m] (idx : Nat) : m Expr

Equations

• Lean.Meta.Sym.Internal.mkBVarS idx = Lean.Meta.Sym.Internal.MonadShareCommon.share1 (Lean.Expr.bvar idx)

def Lean.Meta.Sym.Internal.mkSortS {m : Type → Type} [MonadShareCommon m] (u : Level) : m Expr

Equations

• Lean.Meta.Sym.Internal.mkSortS u = Lean.Meta.Sym.Internal.MonadShareCommon.share1 (Lean.Expr.sort u)

def Lean.Meta.Sym.Internal.mkFVarS {m : Type → Type} [MonadShareCommon m] (fvarId : FVarId) : m Expr

Equations

• Lean.Meta.Sym.Internal.mkFVarS fvarId = Lean.Meta.Sym.Internal.MonadShareCommon.share1 (Lean.Expr.fvar fvarId)

def Lean.Meta.Sym.Internal.mkMVarS {m : Type → Type} [MonadShareCommon m] (mvarId : MVarId) : m Expr

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• Lean.Meta.Sym.Internal.mkMVarS mvarId = Lean.Meta.Sym.Internal.MonadShareCommon.share1 (Lean.Expr.mvar mvarId)

def Lean.Meta.Sym.Internal.mkMDataS {m : Type → Type} [MonadShareCommon m] [Monad m] (d : MData) (e : Expr) : m Expr

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def Lean.Meta.Sym.Internal.mkProjS {m : Type → Type} [MonadShareCommon m] [Monad m] (structName : Name) (idx : Nat) (struct : Expr) : m Expr

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def Lean.Meta.Sym.Internal.mkAppS {m : Type → Type} [MonadShareCommon m] [Monad m] (f a : Expr) : m Expr

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def Lean.Meta.Sym.Internal.mkLambdaS {m : Type → Type} [MonadShareCommon m] [Monad m] (x : Name) (bi : BinderInfo) (t b : Expr) : m Expr

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def Lean.Meta.Sym.Internal.mkForallS {m : Type → Type} [MonadShareCommon m] [Monad m] (x : Name) (bi : BinderInfo) (t b : Expr) : m Expr

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def Lean.Meta.Sym.Internal.mkLetS {m : Type → Type} [MonadShareCommon m] [Monad m] (x : Name) (t v b : Expr) (nondep : Bool := false) : m Expr

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def Lean.Meta.Sym.Internal.mkHaveS {m : Type → Type} [MonadShareCommon m] [Monad m] (x : Name) (t v b : Expr) : m Expr

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@[inline]

def Lean.Expr.updateAppS! {m : Type → Type} [Meta.Sym.Internal.MonadShareCommon m] [Monad m] (e newFn newArg : Expr) : m Expr

Equations

• (fn.app arg).updateAppS! newFn newArg = if (Lean.Meta.Sym.isSameExpr fn newFn && Lean.Meta.Sym.isSameExpr arg newArg) = true then pure (fn.app arg) else Lean.Meta.Sym.Internal.mkAppS newFn newArg
• e.updateAppS! newFn newArg = panicWithPosWithDecl "Lean.Meta.Sym.AlphaShareBuilder" "Lean.Expr.updateAppS!" 148 25 "application expected"

@[inline]

def Lean.Expr.updateMDataS! {m : Type → Type} [Meta.Sym.Internal.MonadShareCommon m] [Monad m] (e newExpr : Expr) : m Expr

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• (Lean.Expr.mdata d a).updateMDataS! newExpr = if Lean.Meta.Sym.isSameExpr a newExpr = true then pure (Lean.Expr.mdata d a) else Lean.Meta.Sym.Internal.mkMDataS d newExpr
• e.updateMDataS! newExpr = panicWithPosWithDecl "Lean.Meta.Sym.AlphaShareBuilder" "Lean.Expr.updateMDataS!" 152 24 "mdata expected"

@[inline]

def Lean.Expr.updateProjS! {m : Type → Type} [Meta.Sym.Internal.MonadShareCommon m] [Monad m] (e newExpr : Expr) : m Expr

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• (Lean.Expr.proj s i a).updateProjS! newExpr = if Lean.Meta.Sym.isSameExpr a newExpr = true then pure (Lean.Expr.proj s i a) else Lean.Meta.Sym.Internal.mkProjS s i newExpr
• e.updateProjS! newExpr = panicWithPosWithDecl "Lean.Meta.Sym.AlphaShareBuilder" "Lean.Expr.updateProjS!" 156 25 "proj expected"

@[inline]

def Lean.Expr.updateForallS! {m : Type → Type} [Meta.Sym.Internal.MonadShareCommon m] [Monad m] (e newDomain newBody : Expr) : m Expr

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• e.updateForallS! newDomain newBody = panicWithPosWithDecl "Lean.Meta.Sym.AlphaShareBuilder" "Lean.Expr.updateForallS!" 160 31 "forall expected"

@[inline]

def Lean.Expr.updateLambdaS! {m : Type → Type} [Meta.Sym.Internal.MonadShareCommon m] [Monad m] (e newDomain newBody : Expr) : m Expr

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• e.updateLambdaS! newDomain newBody = panicWithPosWithDecl "Lean.Meta.Sym.AlphaShareBuilder" "Lean.Expr.updateLambdaS!" 167 27 "lambda expected"

@[inline]

def Lean.Expr.updateLetS! {m : Type → Type} [Meta.Sym.Internal.MonadShareCommon m] [Monad m] (e newType newVal newBody : Expr) : m Expr

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• e.updateLetS! newType newVal newBody = panicWithPosWithDecl "Lean.Meta.Sym.AlphaShareBuilder" "Lean.Expr.updateLetS!" 174 34 "let expression expected"

def Lean.Meta.Sym.Internal.mkAppS₂ {m : Type → Type} [MonadShareCommon m] [Monad m] (f a₁ a₂ : Expr) : m Expr

Equations

• Lean.Meta.Sym.Internal.mkAppS₂ f a₁ a₂ = do let __do_lift ← Lean.Meta.Sym.Internal.mkAppS f a₁ Lean.Meta.Sym.Internal.mkAppS __do_lift a₂

def Lean.Meta.Sym.Internal.mkAppS₃ {m : Type → Type} [MonadShareCommon m] [Monad m] (f a₁ a₂ a₃ : Expr) : m Expr

Equations

• Lean.Meta.Sym.Internal.mkAppS₃ f a₁ a₂ a₃ = do let __do_lift ← Lean.Meta.Sym.Internal.mkAppS₂ f a₁ a₂ Lean.Meta.Sym.Internal.mkAppS __do_lift a₃

def Lean.Meta.Sym.Internal.mkAppS₄ {m : Type → Type} [MonadShareCommon m] [Monad m] (f a₁ a₂ a₃ a₄ : Expr) : m Expr

Equations

• Lean.Meta.Sym.Internal.mkAppS₄ f a₁ a₂ a₃ a₄ = do let __do_lift ← Lean.Meta.Sym.Internal.mkAppS₃ f a₁ a₂ a₃ Lean.Meta.Sym.Internal.mkAppS __do_lift a₄

def Lean.Meta.Sym.Internal.mkAppS₅ {m : Type → Type} [MonadShareCommon m] [Monad m] (f a₁ a₂ a₃ a₄ a₅ : Expr) : m Expr

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• Lean.Meta.Sym.Internal.mkAppS₅ f a₁ a₂ a₃ a₄ a₅ = do let __do_lift ← Lean.Meta.Sym.Internal.mkAppS₄ f a₁ a₂ a₃ a₄ Lean.Meta.Sym.Internal.mkAppS __do_lift a₅