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feat: In Danger namespace, work out how to apply function

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This commit is contained in:
NunoSempere 2022-09-04 19:22:12 +02:00
parent b57233096d
commit b45ab3dba2
1 changed files with 15 additions and 22 deletions
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29
packages/squiggle-lang/src/rescript/FunctionRegistry/Library/FR_Danger.res
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@ -61,25 +61,18 @@ module Internals = {
let choose = ((n, k)) => factorial(n) /. (factorial(n -. k) *. factorial(k))
let pow = (base, exp) => Js.Math.pow_float(~base, ~exp)
let binomial = ((n, k, p)) => choose((n, k)) *. pow(p, k) *. pow(1.0 -. p, n -. k)
let map = (array: array<internalExpressionValue>, environment, eLambdaValue, reducer): result<
let applyFunctionAtPoint = (aLambda, internalNumber: internalExpressionValue, environment , reducer): result<
ReducerInterface_InternalExpressionValue.t,
Reducer_ErrorValue.errorValue,
> => {
let x = array[0]
let wrappedY = {
let result2 = Reducer_Expression_Lambda.doLambdaCall(
eLambdaValue,
let x = internalNumber
let result = Reducer_Expression_Lambda.doLambdaCall(
aLambda,
list{x},
environment,
reducer,
)
let result3 = switch(result2){
| Ok(a) => Ok(list{a})
| Error(b) => Error(b)
}
result3
}
wrappedY->E.R2.fmap(mappedList => mappedList->Belt.List.toArray->Wrappers.evArray)
result
}
}
@ -135,19 +128,19 @@ let library = [
(),
),
Function.make(
~name="map",
~name="applyFunctionAtPoint",
~nameSpace,
~output=EvtArray,
~requiresNamespace=false,
~examples=[`List.map([1,4,5], {|x| x+1})`],
~examples=[`Danger.applyFunctionAtPoint({|x| x+1}, 1)`],
~definitions=[
FnDefinition.make(
~name="map",
~inputs=[FRTypeArray(FRTypeAny), FRTypeLambda],
~name="applyFunctionAtPoint",
~inputs=[FRTypeLambda, FRTypeNumber],
~run=(inputs, _, env, reducer) =>
switch inputs {
| [IEvArray(array), IEvLambda(lambda)] =>
Internals.map(array, env, lambda, reducer)->E.R2.errMap(_ => "Error!")
| [IEvLambda(aLambda), point] =>
Internals.applyFunctionAtPoint(aLambda, point, env, reducer)->E.R2.errMap(_ => "Error!")
| _ => Error(impossibleError)
},
(),