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The Gleam SDK for the OpenFeature specification.

Retired package: Deprecated
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openfeature src evaluation.gleam
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src/evaluation.gleam 

import evaluation_context.{type EvaluationContext}

import gleam/dynamic.{type Dynamic}

import gleam/option.{type Option}



pub type Reason {

  Disabled

  Split

  TargetingMatch

  Default

  Unknown

  Cached

  Static

  Error

}



type GenericEvaluation(value) =

  fn(String, value, Option(EvaluationContext)) -> ResolutionDetails(value)



pub type BoolEvaluation =

  GenericEvaluation(Bool)



pub type StringEvaluation =

  GenericEvaluation(String)



pub type IntEvaluation =

  GenericEvaluation(Int)



pub type FloatEvaluation =

  GenericEvaluation(Float)



pub type DynamicEvaluation =

  GenericEvaluation(Dynamic)



pub type ResolutionDetails(value) {

  ResolutionSuccess(value: value, reason: Reason)

  ResolutionError(code: ErrorCode, message: String)

}



pub type ErrorCode {

  ProviderNotReady

  FlagNotFound

  ParseError

  TypeMismatch

  TargetingKeyMissing

  InvalidContext

  General

}