squiggle/packages/squiggle-lang/src/rescript/ReducerInterface/ReducerInterface_ExpressionValue.res
2022-04-17 20:07:21 +02:00

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/*
Irreducible values. Reducer does not know about those. Only used for external calls
This is a configuration to to make external calls of those types
*/
module Extra_Array = Reducer_Extra_Array
module ErrorValue = Reducer_ErrorValue
@genType
type rec expressionValue =
| EvArray(array<expressionValue>)
| EvBool(bool)
| EvCall(string) // External function call
| EvDistribution(GenericDist_Types.genericDist)
| EvNumber(float)
| EvRecord(Js.Dict.t<expressionValue>)
| EvString(string)
| EvSymbol(string)
type functionCall = (string, array<expressionValue>)
let rec toString = aValue =>
switch aValue {
| EvBool(aBool) => Js.String.make(aBool)
| EvCall(fName) => `:${fName}`
| EvNumber(aNumber) => Js.String.make(aNumber)
| EvString(aString) => `'${aString}'`
| EvSymbol(aString) => `:${aString}`
| EvArray(anArray) => {
let args =
anArray
->Belt.Array.map(each => toString(each))
->Extra_Array.interperse(", ")
->Js.String.concatMany("")
`[${args}]`
}
| EvRecord(aRecord) => aRecord->toStringRecord
| EvDistribution(dist) => GenericDist.toString(dist)
}
and toStringRecord = aRecord => {
let pairs =
aRecord
->Js.Dict.entries
->Belt.Array.map(((eachKey, eachValue)) => `${eachKey}: ${toString(eachValue)}`)
->Extra_Array.interperse(", ")
->Js.String.concatMany("")
`{${pairs}}`
}
let toStringWithType = aValue =>
switch aValue {
| EvBool(_) => `Bool::${toString(aValue)}`
| EvCall(_) => `Call::${toString(aValue)}`
| EvNumber(_) => `Number::${toString(aValue)}`
| EvString(_) => `String::${toString(aValue)}`
| EvSymbol(_) => `Symbol::${toString(aValue)}`
| EvArray(_) => `Array::${toString(aValue)}`
| EvRecord(_) => `Record::${toString(aValue)}`
| EvDistribution(_) => `Distribution::${toString(aValue)}`
}
let argsToString = (args: array<expressionValue>): string => {
args->Belt.Array.map(arg => arg->toString)->Extra_Array.interperse(", ")->Js.String.concatMany("")
}
let toStringFunctionCall = ((fn, args)): string => `${fn}(${argsToString(args)})`
let toStringResult = x =>
switch x {
| Ok(a) => `Ok(${toString(a)})`
| Error(m) => `Error(${ErrorValue.errorToString(m)})`
}
let toStringResultRecord = x =>
switch x {
| Ok(a) => `Ok(${toStringRecord(a)})`
| Error(m) => `Error(${ErrorValue.errorToString(m)})`
}