Lean.Data.RBMap

source

inductive Lean.RBColor :

Type

red: Lean.RBColor
black: Lean.RBColor

source

inductive Lean.RBNode (α : Type u) (β : α → Type v) :

Type (max u v)

leaf: {α : Type u} → {β : α → Type v} → Lean.RBNode α β
node: {α : Type u} → {β : α → Type v} → Lean.RBColor → Lean.RBNode α β → (key : α) → β key → Lean.RBNode α β → Lean.RBNode α β

Instances For

source

def Lean.RBNode.depth {α : Type u} {β : α → Type v} (f : Nat → Nat → Nat) :

Lean.RBNode α β → Nat

Equations

Lean.RBNode.depth f Lean.RBNode.leaf = 0
Lean.RBNode.depth f (Lean.RBNode.node color l key val r) = (f (Lean.RBNode.depth f l) (Lean.RBNode.depth f r)).succ

source

def Lean.RBNode.min {α : Type u} {β : α → Type v} :

Lean.RBNode α β → Option ((k : α) × β k)

Equations

Lean.RBNode.leaf.min = none
(Lean.RBNode.node color Lean.RBNode.leaf k v rchild).min = some ⟨k, v⟩
(Lean.RBNode.node color l key val rchild).min = l.min

source

def Lean.RBNode.max {α : Type u} {β : α → Type v} :

Lean.RBNode α β → Option ((k : α) × β k)

Equations

Lean.RBNode.leaf.max = none
(Lean.RBNode.node color lchild k v Lean.RBNode.leaf).max = some ⟨k, v⟩
(Lean.RBNode.node color lchild key val r).max = r.max

source

@[specialize #[]]

def Lean.RBNode.fold {α : Type u} {β : α → Type v} {σ : Type w} (f : σ → (k : α) → β k → σ) (init : σ) :

Lean.RBNode α β → σ

Equations

Lean.RBNode.fold f x Lean.RBNode.leaf = x
Lean.RBNode.fold f x (Lean.RBNode.node color l k v r) = Lean.RBNode.fold f (f (Lean.RBNode.fold f x l) k v) r

source

@[specialize #[]]

def Lean.RBNode.forM {α : Type u} {β : α → Type v} {m : Type → Type u_1} [Monad m] (f : (k : α) → β k → m Unit) :

Lean.RBNode α β → m Unit

Equations

Lean.RBNode.forM f Lean.RBNode.leaf = pure ()
Lean.RBNode.forM f (Lean.RBNode.node color l key val r) = do Lean.RBNode.forM f l f key val Lean.RBNode.forM f r

source

@[specialize #[]]

def Lean.RBNode.foldM {α : Type u} {β : α → Type v} {σ : Type w} {m : Type w → Type u_1} [Monad m] (f : σ → (k : α) → β k → m σ) (init : σ) :

Lean.RBNode α β → m σ

Equations

Lean.RBNode.foldM f x Lean.RBNode.leaf = pure x
Lean.RBNode.foldM f x (Lean.RBNode.node color l k v r) = do let b ← Lean.RBNode.foldM f x l let b ← f b k v Lean.RBNode.foldM f b r

source

@[inline]

def Lean.RBNode.forIn {α : Type u} {β : α → Type v} {σ : Type w} {m : Type w → Type u_1} [Monad m] (as : Lean.RBNode α β) (init : σ) (f : (k : α) → β k → σ → m (ForInStep σ)) :

m σ

Equations

as.forIn init f = do let __do_lift ← Lean.RBNode.forIn.visit f as init match __do_lift with | ForInStep.done b => pure b | ForInStep.yield b => pure b

source

@[specialize #[]]

def Lean.RBNode.forIn.visit {α : Type u} {β : α → Type v} {σ : Type w} {m : Type w → Type u_1} [Monad m] (f : (k : α) → β k → σ → m (ForInStep σ)) :

Lean.RBNode α β → σ → m (ForInStep σ)

Equations

One or more equations did not get rendered due to their size.
Lean.RBNode.forIn.visit f Lean.RBNode.leaf x = pure (ForInStep.yield x)

source

@[specialize #[]]

def Lean.RBNode.revFold {α : Type u} {β : α → Type v} {σ : Type w} (f : σ → (k : α) → β k → σ) (init : σ) :

Lean.RBNode α β → σ

Equations

Lean.RBNode.revFold f x Lean.RBNode.leaf = x
Lean.RBNode.revFold f x (Lean.RBNode.node color l k v r) = Lean.RBNode.revFold f (f (Lean.RBNode.revFold f x r) k v) l

source

@[specialize #[]]

def Lean.RBNode.all {α : Type u} {β : α → Type v} (p : (k : α) → β k → Bool) :

Lean.RBNode α β → Bool

Equations

Lean.RBNode.all p Lean.RBNode.leaf = true
Lean.RBNode.all p (Lean.RBNode.node color l key val r) = (p key val && Lean.RBNode.all p l && Lean.RBNode.all p r)

source

@[specialize #[]]

def Lean.RBNode.any {α : Type u} {β : α → Type v} (p : (k : α) → β k → Bool) :

Lean.RBNode α β → Bool

Equations

Lean.RBNode.any p Lean.RBNode.leaf = false
Lean.RBNode.any p (Lean.RBNode.node color l key val r) = (p key val || Lean.RBNode.any p l || Lean.RBNode.any p r)

source

def Lean.RBNode.singleton {α : Type u} {β : α → Type v} (k : α) (v : β k) :

Lean.RBNode α β

Equations

Lean.RBNode.singleton k v = Lean.RBNode.node Lean.RBColor.red Lean.RBNode.leaf k v Lean.RBNode.leaf

source

@[inline]

def Lean.RBNode.balance1 {α : Type u} {β : α → Type v} :

Lean.RBNode α β → (a : α) → β a → Lean.RBNode α β → Lean.RBNode α β

Equations

One or more equations did not get rendered due to their size.

source

@[inline]

def Lean.RBNode.balance2 {α : Type u} {β : α → Type v} :

Lean.RBNode α β → (a : α) → β a → Lean.RBNode α β → Lean.RBNode α β

Equations

One or more equations did not get rendered due to their size.

source

def Lean.RBNode.isRed {α : Type u} {β : α → Type v} :

Lean.RBNode α β → Bool

Equations

x.isRed = match x with | Lean.RBNode.node Lean.RBColor.red lchild key val rchild => true | x => false

source

def Lean.RBNode.isBlack {α : Type u} {β : α → Type v} :

Lean.RBNode α β → Bool

Equations

x.isBlack = match x with | Lean.RBNode.node Lean.RBColor.black lchild key val rchild => true | x => false

source

@[specialize #[]]

def Lean.RBNode.ins {α : Type u} {β : α → Type v} (cmp : α → α → Ordering) :

Lean.RBNode α β → (k : α) → β k → Lean.RBNode α β

Equations

One or more equations did not get rendered due to their size.
Lean.RBNode.ins cmp Lean.RBNode.leaf x✝ x = Lean.RBNode.node Lean.RBColor.red Lean.RBNode.leaf x✝ x Lean.RBNode.leaf

source

def Lean.RBNode.setBlack {α : Type u} {β : α → Type v} :

Lean.RBNode α β → Lean.RBNode α β

Equations

x.setBlack = match x with | Lean.RBNode.node color l k v r => Lean.RBNode.node Lean.RBColor.black l k v r | e => e

source

@[specialize #[]]

def Lean.RBNode.insert {α : Type u} {β : α → Type v} (cmp : α → α → Ordering) (t : Lean.RBNode α β) (k : α) (v : β k) :

Lean.RBNode α β

Equations

Lean.RBNode.insert cmp t k v = if t.isRed = true then (Lean.RBNode.ins cmp t k v).setBlack else Lean.RBNode.ins cmp t k v

source

def Lean.RBNode.setRed {α : Type u} {β : α → Type v} :

Lean.RBNode α β → Lean.RBNode α β

Equations

x.setRed = match x with | Lean.RBNode.node color a k v b => Lean.RBNode.node Lean.RBColor.red a k v b | e => e

source

def Lean.RBNode.balLeft {α : Type u} {β : α → Type v} :

Lean.RBNode α β → (k : α) → β k → Lean.RBNode α β → Lean.RBNode α β

Equations

One or more equations did not get rendered due to their size.

source

def Lean.RBNode.balRight {α : Type u} {β : α → Type v} (l : Lean.RBNode α β) (k : α) (v : β k) (r : Lean.RBNode α β) :

Lean.RBNode α β

Equations

One or more equations did not get rendered due to their size.

source

def Lean.RBNode.size {α : Type u} {β : α → Type v} :

Lean.RBNode α β → Nat

The number of nodes in the tree.

Equations

Lean.RBNode.leaf.size = 0
(Lean.RBNode.node color l key val r).size = l.size + r.size + 1

source

@[irreducible]

def Lean.RBNode.appendTrees {α : Type u} {β : α → Type v} :

Lean.RBNode α β → Lean.RBNode α β → Lean.RBNode α β

source

@[specialize #[]]

def Lean.RBNode.del {α : Type u} {β : α → Type v} (cmp : α → α → Ordering) (x : α) :

Lean.RBNode α β → Lean.RBNode α β

Equations

One or more equations did not get rendered due to their size.
Lean.RBNode.del cmp x Lean.RBNode.leaf = Lean.RBNode.leaf

source

@[specialize #[]]

def Lean.RBNode.erase {α : Type u} {β : α → Type v} (cmp : α → α → Ordering) (x : α) (t : Lean.RBNode α β) :

Lean.RBNode α β

Equations

Lean.RBNode.erase cmp x t = let t := Lean.RBNode.del cmp x t; t.setBlack

source

@[specialize #[]]

def Lean.RBNode.findCore {α : Type u} {β : α → Type v} (cmp : α → α → Ordering) :

Lean.RBNode α β → α → Option ((k : α) × β k)

Equations

One or more equations did not get rendered due to their size.
Lean.RBNode.findCore cmp Lean.RBNode.leaf x = none

source

@[specialize #[]]

def Lean.RBNode.find {α : Type u} (cmp : α → α → Ordering) {β : Type v} :

(Lean.RBNode α fun (x : α) => β) → α → Option β

Equations

Lean.RBNode.find cmp Lean.RBNode.leaf x = none
Lean.RBNode.find cmp (Lean.RBNode.node color a ky vy b) x = match cmp x ky with | Ordering.lt => Lean.RBNode.find cmp a x | Ordering.gt => Lean.RBNode.find cmp b x | Ordering.eq => some vy

source

@[specialize #[]]

def Lean.RBNode.lowerBound {α : Type u} {β : α → Type v} (cmp : α → α → Ordering) :

Lean.RBNode α β → α → Option (Sigma β) → Option (Sigma β)

Equations

One or more equations did not get rendered due to their size.
Lean.RBNode.lowerBound cmp Lean.RBNode.leaf x✝ x = x

source

inductive Lean.RBNode.WellFormed {α : Type u} {β : α → Type v} (cmp : α → α → Ordering) :

Lean.RBNode α β → Prop

leafWff: ∀ {α : Type u} {β : α → Type v} {cmp : α → α → Ordering}, Lean.RBNode.WellFormed cmp Lean.RBNode.leaf
insertWff: ∀ {α : Type u} {β : α → Type v} {cmp : α → α → Ordering} {n n' : Lean.RBNode α β} {k : α} {v : β k}, Lean.RBNode.WellFormed cmp n → n' = Lean.RBNode.insert cmp n k v → Lean.RBNode.WellFormed cmp n'
eraseWff: ∀ {α : Type u} {β : α → Type v} {cmp : α → α → Ordering} {n n' : Lean.RBNode α β} {k : α}, Lean.RBNode.WellFormed cmp n → n' = Lean.RBNode.erase cmp k n → Lean.RBNode.WellFormed cmp n'

source

@[specialize #[]]

def Lean.RBNode.mapM {α : Type v} {β : α → Type v} {γ : α → Type v} {M : Type v → Type v} [Applicative M] (f : (a : α) → β a → M (γ a)) :

Lean.RBNode α β → M (Lean.RBNode α γ)

Equations

One or more equations did not get rendered due to their size.
Lean.RBNode.mapM f Lean.RBNode.leaf = pure Lean.RBNode.leaf

source

@[specialize #[]]

def Lean.RBNode.map {α : Type u} {β : α → Type v} {γ : α → Type v} (f : (a : α) → β a → γ a) :

Lean.RBNode α β → Lean.RBNode α γ

Equations

Lean.RBNode.map f Lean.RBNode.leaf = Lean.RBNode.leaf
Lean.RBNode.map f (Lean.RBNode.node color l key val r) = Lean.RBNode.node color (Lean.RBNode.map f l) key (f key val) (Lean.RBNode.map f r)

source

def Lean.RBNode.toArray {α : Type u} {β : α → Type v} (n : Lean.RBNode α β) :

Array (Sigma β)

Equations

n.toArray = Lean.RBNode.fold (fun (acc : Array (Sigma β)) (k : α) (v : β k) => acc.push ⟨k, v⟩) ∅ n

source

instance Lean.RBNode.instEmptyCollection {α : Type u} {β : α → Type v} :

EmptyCollection (Lean.RBNode α β)

Equations

Lean.RBNode.instEmptyCollection = { emptyCollection := Lean.RBNode.leaf }

source

def Lean.RBMap (α : Type u) (β : Type v) (cmp : α → α → Ordering) :

Type (max u v)

Equations

Lean.RBMap α β cmp = { t : Lean.RBNode α fun (x : α) => β // Lean.RBNode.WellFormed cmp t }

Instances For

source

@[inline]

def Lean.mkRBMap (α : Type u) (β : Type v) (cmp : α → α → Ordering) :

Lean.RBMap α β cmp

Equations

Lean.mkRBMap α β cmp = ⟨Lean.RBNode.leaf, ⋯⟩

source

@[inline]

def Lean.RBMap.empty {α : Type u} {β : Type v} {cmp : α → α → Ordering} :

Lean.RBMap α β cmp

Equations

Lean.RBMap.empty = Lean.mkRBMap α β cmp

source

instance Lean.instEmptyCollectionRBMap (α : Type u) (β : Type v) (cmp : α → α → Ordering) :

EmptyCollection (Lean.RBMap α β cmp)

Equations

Lean.instEmptyCollectionRBMap α β cmp = { emptyCollection := Lean.RBMap.empty }

source

instance Lean.instInhabitedRBMap (α : Type u) (β : Type v) (cmp : α → α → Ordering) :

Inhabited (Lean.RBMap α β cmp)

Equations

Lean.instInhabitedRBMap α β cmp = { default := ∅ }

source

def Lean.RBMap.depth {α : Type u} {β : Type v} {cmp : α → α → Ordering} (f : Nat → Nat → Nat) (t : Lean.RBMap α β cmp) :

Nat

Equations

Lean.RBMap.depth f t = Lean.RBNode.depth f t.val

source

@[inline]

def Lean.RBMap.fold {α : Type u} {β : Type v} {σ : Type w} {cmp : α → α → Ordering} (f : σ → α → β → σ) (init : σ) :

Lean.RBMap α β cmp → σ

Equations

Lean.RBMap.fold f x✝ x = match x✝, x with | b, ⟨t, property⟩ => Lean.RBNode.fold f b t

source

@[inline]

def Lean.RBMap.revFold {α : Type u} {β : Type v} {σ : Type w} {cmp : α → α → Ordering} (f : σ → α → β → σ) (init : σ) :

Lean.RBMap α β cmp → σ

Equations

Lean.RBMap.revFold f x✝ x = match x✝, x with | b, ⟨t, property⟩ => Lean.RBNode.revFold f b t

source

@[inline]

def Lean.RBMap.foldM {α : Type u} {β : Type v} {σ : Type w} {cmp : α → α → Ordering} {m : Type w → Type u_1} [Monad m] (f : σ → α → β → m σ) (init : σ) :

Lean.RBMap α β cmp → m σ

Equations

Lean.RBMap.foldM f x✝ x = match x✝, x with | b, ⟨t, property⟩ => Lean.RBNode.foldM f b t

source

@[inline]

def Lean.RBMap.forM {α : Type u} {β : Type v} {cmp : α → α → Ordering} {m : Type u_1 → Type u_2} [Monad m] (f : α → β → m PUnit) (t : Lean.RBMap α β cmp) :

m PUnit

Equations

Lean.RBMap.forM f t = Lean.RBMap.foldM (fun (x : PUnit) (k : α) (v : β) => f k v) PUnit.unit t

source

@[inline]

def Lean.RBMap.forIn {α : Type u} {β : Type v} {σ : Type w} {cmp : α → α → Ordering} {m : Type w → Type u_1} [Monad m] (t : Lean.RBMap α β cmp) (init : σ) (f : α × β → σ → m (ForInStep σ)) :

m σ

Equations

t.forIn init f = t.val.forIn init fun (a : α) (b : β) (acc : σ) => f (a, b) acc

source

instance Lean.RBMap.instForInProd {α : Type u} {β : Type v} {cmp : α → α → Ordering} {m : Type u_1 → Type u_2} :

ForIn m (Lean.RBMap α β cmp) (α × β)

Equations

Lean.RBMap.instForInProd = { forIn := fun {β_1 : Type u_1} [Monad m] => Lean.RBMap.forIn }

source

@[inline]

def Lean.RBMap.isEmpty {α : Type u} {β : Type v} {cmp : α → α → Ordering} :

Lean.RBMap α β cmp → Bool

Equations

x.isEmpty = match x with | ⟨Lean.RBNode.leaf, property⟩ => true | x => false

source

@[specialize #[]]

def Lean.RBMap.toList {α : Type u} {β : Type v} {cmp : α → α → Ordering} :

Lean.RBMap α β cmp → List (α × β)

Equations

x.toList = match x with | ⟨t, property⟩ => Lean.RBNode.revFold (fun (ps : List (α × β)) (k : α) (v : β) => (k, v) :: ps) [] t

source

@[inline]

def Lean.RBMap.min {α : Type u} {β : Type v} {cmp : α → α → Ordering} :

Lean.RBMap α β cmp → Option (α × β)

Returns the kv pair (a,b) such that a ≤ k for all keys in the RBMap.

Equations

x.min = match x with | ⟨t, property⟩ => match t.min with | some ⟨k, v⟩ => some (k, v) | none => none

source

@[inline]

def Lean.RBMap.max {α : Type u} {β : Type v} {cmp : α → α → Ordering} :

Lean.RBMap α β cmp → Option (α × β)

Returns the kv pair (a,b) such that a ≥ k for all keys in the RBMap.

Equations

x.max = match x with | ⟨t, property⟩ => match t.max with | some ⟨k, v⟩ => some (k, v) | none => none

source

instance Lean.RBMap.instRepr {α : Type u} {β : Type v} {cmp : α → α → Ordering} [Repr α] [Repr β] :

Repr (Lean.RBMap α β cmp)

Equations

Lean.RBMap.instRepr = { reprPrec := fun (m : Lean.RBMap α β cmp) (prec : Nat) => Repr.addAppParen (Std.Format.text "Lean.rbmapOf " ++ repr m.toList) prec }

source

@[inline]

def Lean.RBMap.insert {α : Type u} {β : Type v} {cmp : α → α → Ordering} :

Lean.RBMap α β cmp → α → β → Lean.RBMap α β cmp

Equations

x✝¹.insert x✝ x = match x✝¹, x✝, x with | ⟨t, w⟩, k, v => ⟨Lean.RBNode.insert cmp t k v, ⋯⟩

source

@[inline]

def Lean.RBMap.erase {α : Type u} {β : Type v} {cmp : α → α → Ordering} :

Lean.RBMap α β cmp → α → Lean.RBMap α β cmp

Equations

x✝.erase x = match x✝, x with | ⟨t, w⟩, k => ⟨Lean.RBNode.erase cmp k t, ⋯⟩

source

@[specialize #[]]

def Lean.RBMap.ofList {α : Type u} {β : Type v} {cmp : α → α → Ordering} :

List (α × β) → Lean.RBMap α β cmp

Equations

Lean.RBMap.ofList [] = Lean.mkRBMap α β cmp
Lean.RBMap.ofList ((k, v) :: xs) = (Lean.RBMap.ofList xs).insert k v

source

@[inline]

def Lean.RBMap.findCore? {α : Type u} {β : Type v} {cmp : α → α → Ordering} :

Lean.RBMap α β cmp → α → Option ((_ : α) × β)

Equations

x✝.findCore? x = match x✝, x with | ⟨t, property⟩, x => Lean.RBNode.findCore cmp t x

source

@[inline]

def Lean.RBMap.find? {α : Type u} {β : Type v} {cmp : α → α → Ordering} :

Lean.RBMap α β cmp → α → Option β

Equations

x✝.find? x = match x✝, x with | ⟨t, property⟩, x => Lean.RBNode.find cmp t x

source

@[inline]

def Lean.RBMap.findD {α : Type u} {β : Type v} {cmp : α → α → Ordering} (t : Lean.RBMap α β cmp) (k : α) (v₀ : β) :

Equations

t.findD k v₀ = (t.find? k).getD v₀

source

@[inline]

def Lean.RBMap.lowerBound {α : Type u} {β : Type v} {cmp : α → α → Ordering} :

Lean.RBMap α β cmp → α → Option ((_ : α) × β)

(lowerBound k) retrieves the kv pair of the largest key smaller than or equal to k, if it exists.

Equations

x✝.lowerBound x = match x✝, x with | ⟨t, property⟩, x => Lean.RBNode.lowerBound cmp t x none

source

@[inline]

def Lean.RBMap.contains {α : Type u} {β : Type v} {cmp : α → α → Ordering} (t : Lean.RBMap α β cmp) (a : α) :

Bool

Returns true if the given key a is in the RBMap.

Equations

t.contains a = (t.find? a).isSome

source

@[inline]

def Lean.RBMap.fromList {α : Type u} {β : Type v} (l : List (α × β)) (cmp : α → α → Ordering) :

Lean.RBMap α β cmp

Equations

Lean.RBMap.fromList l cmp = List.foldl (fun (r : Lean.RBMap α β cmp) (p : α × β) => r.insert p.fst p.snd) (Lean.mkRBMap α β cmp) l

source

@[inline]

def Lean.RBMap.fromArray {α : Type u} {β : Type v} (l : Array (α × β)) (cmp : α → α → Ordering) :

Lean.RBMap α β cmp

Equations

Lean.RBMap.fromArray l cmp = Array.foldl (fun (r : Lean.RBMap α β cmp) (p : α × β) => r.insert p.fst p.snd) (Lean.mkRBMap α β cmp) l 0

source

@[inline]

def Lean.RBMap.all {α : Type u} {β : Type v} {cmp : α → α → Ordering} :

Lean.RBMap α β cmp → (α → β → Bool) → Bool

Returns true if the given predicate is true for all items in the RBMap.

Equations

x✝.all x = match x✝, x with | ⟨t, property⟩, p => Lean.RBNode.all p t

source

@[inline]

def Lean.RBMap.any {α : Type u} {β : Type v} {cmp : α → α → Ordering} :

Lean.RBMap α β cmp → (α → β → Bool) → Bool

Returns true if the given predicate is true for any item in the RBMap.

Equations

x✝.any x = match x✝, x with | ⟨t, property⟩, p => Lean.RBNode.any p t

source

def Lean.RBMap.size {α : Type u} {β : Type v} {cmp : α → α → Ordering} (m : Lean.RBMap α β cmp) :

Nat

The number of items in the RBMap.

Equations

m.size = Lean.RBMap.fold (fun (sz : Nat) (x : α) (x : β) => sz + 1) 0 m

source

def Lean.RBMap.maxDepth {α : Type u} {β : Type v} {cmp : α → α → Ordering} (t : Lean.RBMap α β cmp) :

Nat

Equations

t.maxDepth = Lean.RBNode.depth Nat.max t.val

source

@[inline]

def Lean.RBMap.min! {α : Type u} {β : Type v} {cmp : α → α → Ordering} [Inhabited α] [Inhabited β] (t : Lean.RBMap α β cmp) :

α × β

Equations

t.min! = match t.min with | some p => p | none => panicWithPosWithDecl "Lean.Data.RBMap" "Lean.RBMap.min!" 366 14 "map is empty"

source

@[inline]

def Lean.RBMap.max! {α : Type u} {β : Type v} {cmp : α → α → Ordering} [Inhabited α] [Inhabited β] (t : Lean.RBMap α β cmp) :

α × β

Equations

t.max! = match t.max with | some p => p | none => panicWithPosWithDecl "Lean.Data.RBMap" "Lean.RBMap.max!" 371 14 "map is empty"

source

@[inline]

def Lean.RBMap.find! {α : Type u} {β : Type v} {cmp : α → α → Ordering} [Inhabited β] (t : Lean.RBMap α β cmp) (k : α) :

Attempts to find the value with key k : α in t and panics if there is no such key.

Equations

t.find! k = match t.find? k with | some b => b | none => panicWithPosWithDecl "Lean.Data.RBMap" "Lean.RBMap.find!" 377 14 "key is not in the map"

source

def Lean.RBMap.mergeBy {α : Type u} {β : Type v} {cmp : α → α → Ordering} (mergeFn : α → β → β → β) (t₁ : Lean.RBMap α β cmp) (t₂ : Lean.RBMap α β cmp) :

Lean.RBMap α β cmp

Merges the maps t₁ and t₂, if a key a : α exists in both, then use mergeFn a b₁ b₂ to produce the new merged value.

Equations

One or more equations did not get rendered due to their size.

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def Lean.RBMap.intersectBy {α : Type u} {β : Type v} {cmp : α → α → Ordering} {γ : Type v₁} {δ : Type v₂} (mergeFn : α → β → γ → δ) (t₁ : Lean.RBMap α β cmp) (t₂ : Lean.RBMap α γ cmp) :

Lean.RBMap α δ cmp

Intersects the maps t₁ and t₂ using mergeFn a b₁ b₂ to produce the new value.

Equations

One or more equations did not get rendered due to their size.

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def Lean.rbmapOf {α : Type u} {β : Type v} (l : List (α × β)) (cmp : α → α → Ordering) :

Lean.RBMap α β cmp

Equations

Lean.rbmapOf l cmp = Lean.RBMap.fromList l cmp