Documentation

Lean.Data.Json.Basic

structure Lean.JsonNumber :

mantissa : Int
exponent : Nat

Instances For

instance Lean.instDecidableEqJsonNumber :

DecidableEq JsonNumber

Equations

Lean.instDecidableEqJsonNumber = Lean.decEqJsonNumber✝

instance Lean.instHashableJsonNumber :

Hashable JsonNumber

Equations

Lean.instHashableJsonNumber = { hash := Lean.hashJsonNumber✝ }

def Lean.JsonNumber.fromNat (n : Nat) :

Equations

Lean.JsonNumber.fromNat n = { mantissa := ↑n, exponent := 0 }

def Lean.JsonNumber.fromInt (n : Int) :

Equations

Lean.JsonNumber.fromInt n = { mantissa := n, exponent := 0 }

instance Lean.JsonNumber.instCoeNat :

Coe Nat JsonNumber

Equations

Lean.JsonNumber.instCoeNat = { coe := Lean.JsonNumber.fromNat }

instance Lean.JsonNumber.instCoeInt :

Coe Int JsonNumber

Equations

Lean.JsonNumber.instCoeInt = { coe := Lean.JsonNumber.fromInt }

instance Lean.JsonNumber.instOfNat {n : Nat} :

OfNat JsonNumber n

Equations

Lean.JsonNumber.instOfNat = { ofNat := Lean.JsonNumber.fromNat n }

def Lean.JsonNumber.normalize :

JsonNumber → Int × Nat × Int

Equations

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

def Lean.JsonNumber.lt (a b : JsonNumber) :

Equations

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

def Lean.JsonNumber.ltProp :

Equations

Lean.JsonNumber.ltProp = { lt := fun (a b : Lean.JsonNumber) => a.lt b = true }

instance Lean.JsonNumber.instLT :

Equations

Lean.JsonNumber.instLT = Lean.JsonNumber.ltProp

instance Lean.JsonNumber.instDecidableLt (a b : JsonNumber) :

Decidable (a < b)

Equations

a.instDecidableLt b = inferInstanceAs (Decidable (a.lt b = true))

instance Lean.JsonNumber.instOrd :

Equations

Lean.JsonNumber.instOrd = { compare := fun (x y : Lean.JsonNumber) => if x < y then Ordering.lt else if x > y then Ordering.gt else Ordering.eq }

def Lean.JsonNumber.toString :

JsonNumber → String

Equations

One or more equations did not get rendered due to their size.
{ mantissa := m, exponent := 0 }.toString = m.repr

def Lean.JsonNumber.shiftl :

JsonNumber → Nat → JsonNumber

Equations

{ mantissa := m, exponent := e }.shiftl x✝ = { mantissa := m * ↑(10 ^ (x✝ - e)), exponent := e - x✝ }

def Lean.JsonNumber.shiftr :

JsonNumber → Nat → JsonNumber

Equations

{ mantissa := m, exponent := e }.shiftr x✝ = { mantissa := m, exponent := e + x✝ }

instance Lean.JsonNumber.instToString :

ToString JsonNumber

Equations

Lean.JsonNumber.instToString = { toString := Lean.JsonNumber.toString }

instance Lean.JsonNumber.instRepr :

Repr JsonNumber

Equations

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

instance Lean.JsonNumber.instOfScientific :

OfScientific JsonNumber

Equations

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

instance Lean.JsonNumber.instNeg :

Equations

Lean.JsonNumber.instNeg = { neg := fun (jn : Lean.JsonNumber) => { mantissa := -jn.mantissa, exponent := jn.exponent } }

instance Lean.JsonNumber.instInhabited :

Inhabited JsonNumber

Equations

Lean.JsonNumber.instInhabited = { default := 0 }

def Lean.JsonNumber.toFloat :

JsonNumber → Float

Equations

{ mantissa := a, exponent := a_1 }.toFloat = (if a ≥ 0 then 1.0 else -1.0) * OfScientific.ofScientific a.natAbs true a_1

def Lean.JsonNumber.fromFloat? (x : Float) :

String ⊕ JsonNumber

Attempts to convert a float to a JsonNumber, if the number isn't finite returns the appropriate string from "NaN", "Infinity", "-Infinity".

Equations

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

def Lean.strLt (a b : String) :

Equations

Lean.strLt a b = decide (a < b)

inductive Lean.Json :

null : Json
bool (b : Bool) : Json
num (n : JsonNumber) : Json
str (s : String) : Json
arr (elems : Array Json) : Json
obj (kvPairs : RBNode String fun (x : String) => Json) : Json

Instances For

instance Lean.instInhabitedJson :

Equations

Lean.instInhabitedJson = { default := Lean.Json.null }

instance Lean.Json.instBEq :

Equations

Lean.Json.instBEq = { beq := Lean.Json.beq'✝ }

instance Lean.Json.instHashable :

Equations

Lean.Json.instHashable = { hash := Lean.Json.hash'✝ }

def Lean.Json.mkObj (o : List (String × Json)) :

Equations

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

instance Lean.Json.instCoeNat :

Equations

Lean.Json.instCoeNat = { coe := fun (n : Nat) => Lean.Json.num (Lean.JsonNumber.fromNat n) }

instance Lean.Json.instCoeInt :

Equations

Lean.Json.instCoeInt = { coe := fun (n : Int) => Lean.Json.num (Lean.JsonNumber.fromInt n) }

instance Lean.Json.instCoeString :

Coe String Json

Equations

Lean.Json.instCoeString = { coe := Lean.Json.str }

instance Lean.Json.instCoeBool :

Equations

Lean.Json.instCoeBool = { coe := Lean.Json.bool }

instance Lean.Json.instOfNat {n : Nat} :

Equations

Lean.Json.instOfNat = { ofNat := Lean.Json.num (Lean.JsonNumber.fromNat n) }

def Lean.Json.isNull :

Equations

Lean.Json.null.isNull = true
x✝.isNull = false

def Lean.Json.getObj? :

Json → Except String (RBNode String fun (x : String) => Json)

Equations

(Lean.Json.obj kvs).getObj? = pure kvs
x✝.getObj? = throw "object expected"

def Lean.Json.getArr? :

Json → Except String (Array Json)

Equations

(Lean.Json.arr a).getArr? = pure a
x✝.getArr? = throw "array expected"

def Lean.Json.getStr? :

Json → Except String String

Equations

(Lean.Json.str s).getStr? = pure s
x✝.getStr? = throw "String expected"

def Lean.Json.getNat? :

Json → Except String Nat

Equations

(Lean.Json.num { mantissa := Int.ofNat n, exponent := 0 }).getNat? = pure n
x✝.getNat? = throw "Natural number expected"

def Lean.Json.getInt? :

Json → Except String Int

Equations

(Lean.Json.num { mantissa := i, exponent := 0 }).getInt? = pure i
x✝.getInt? = throw "Integer expected"

def Lean.Json.getBool? :

Json → Except String Bool

Equations

(Lean.Json.bool b).getBool? = pure b
x✝.getBool? = throw "Bool expected"

def Lean.Json.getNum? :

Json → Except String JsonNumber

Equations

(Lean.Json.num n).getNum? = pure n
x✝.getNum? = throw "number expected"

def Lean.Json.getObjVal? :

Json → String → Except String Json

Equations

(Lean.Json.obj kvs).getObjVal? x✝ = match Lean.RBNode.find compare kvs x✝ with | some v => pure v | none => throw (toString "property not found: " ++ toString x✝ ++ toString "")
x✝¹.getObjVal? x✝ = throw "object expected"

def Lean.Json.getArrVal? :

Json → Nat → Except String Json

Equations

(Lean.Json.arr a).getArrVal? x✝ = match a[x✝]? with | some v => pure v | none => throw (toString "index out of bounds: " ++ toString x✝ ++ toString "")
x✝¹.getArrVal? x✝ = throw "array expected"

def Lean.Json.getObjValD (j : Json) (k : String) :

Equations

j.getObjValD k = (j.getObjVal? k).toOption.getD Lean.Json.null

def Lean.Json.setObjVal! :

Json → String → Json → Json

Equations

(Lean.Json.obj kvs).setObjVal! x✝¹ x✝ = Lean.Json.obj (Lean.RBNode.insert compare kvs x✝¹ x✝)
x✝².setObjVal! x✝¹ x✝ = panicWithPosWithDecl "Lean.Data.Json.Basic" "Lean.Json.setObjVal!" 288 21 "Json.setObjVal!: not an object: {j}"

def Lean.Json.mergeObj :

Json → Json → Json

Assuming both inputs o₁, o₂ are json objects, will compute {...o₁, ...o₂}. If o₁ is not a json object, o₂ will be returned.

Equations

(Lean.Json.obj kvs₁).mergeObj (Lean.Json.obj kvs₂) = Lean.Json.obj (Lean.RBNode.fold (Lean.RBNode.insert compare) kvs₁ kvs₂)
x✝¹.mergeObj x✝ = x✝

inductive Lean.Json.Structured :

arr (elems : Array Json) : Structured
obj (kvPairs : RBNode String fun (x : String) => Json) : Structured

Instances For

instance Lean.Json.instCoeArrayStructured :

Coe (Array Json) Structured

Equations

Lean.Json.instCoeArrayStructured = { coe := Lean.Json.Structured.arr }

instance Lean.Json.instCoeRBNodeStringStructured :

Coe (RBNode String fun (x : String) => Json) Structured

Equations

Lean.Json.instCoeRBNodeStringStructured = { coe := Lean.Json.Structured.obj }