squiggle/packages/squiggle-lang/src/rescript/ReducerInterface/ReducerInterface_Number.res

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2022-06-06 21:42:49 +00:00
module EV = ReducerInterface_ExpressionValue
type expressionValue = EV.expressionValue
module ScientificUnit = {
let nameToMultiplier = str =>
switch str {
| "n" => Some(1E-9)
| "m" => Some(1E-3)
| "k" => Some(1E3)
| "M" => Some(1E6)
| "B" => Some(1E9)
| "G" => Some(1E9)
| "T" => Some(1E12)
| "P" => Some(1E15)
| _ => None
}
let getMultiplier = (r: string) => {
let match = Js.String2.match_(r, %re(`/fromUnit_([_a-zA-Z]*)/`))
switch match {
| Some([_, unit]) => nameToMultiplier(unit)
| _ => None
}
}
}
let dispatch = (call: EV.functionCall, _: DistributionOperation.env): option<
result<expressionValue, QuriSquiggleLang.Reducer_ErrorValue.errorValue>,
> => {
switch call {
| (
("fromUnit_n"
| "fromUnit_m"
| "fromUnit_k"
| "fromUnit_M"
| "fromUnit_B"
| "fromUnit_G"
| "fromUnit_T"
| "fromUnit_P") as op,
[EvNumber(f)],
) =>
op->ScientificUnit.getMultiplier->E.O2.fmap(multiplier => EV.EvNumber(f *. multiplier)->Ok)
| _ => None
}
}