Îõ³h$v      5A small framework to manage user defined type errors.1(c) Juan García-Garland, Marcos Viera, 2019, 2020GPLv3jpgarcia@fing.edu.uy experimentalPOSIX Safe-Inferred'(-./>?ÀÁÂÉÖ×Ùì4  requirementsoverloaded type equality requirementsÚimplementation of Require instance for equality (the type family in the context implements the logic) instance RequireEqRes t1 t2 ctx => Require (OpEq t1 t2) ctx where type ReqR (OpEq t1 t2) = () req = undefinedöcomparisson of types, given a trivially satisfying constraint if they are equal, or requiring an |OpError| otherwise. requirementsEquality operator. requirements©type RequireEq (t1 :: k )(t2 :: k) (ctx:: [ErrorMessage]) = (Require (OpEq t1 t2) ctx ) --0, IfStuck (Equal t1 t2) (DelayError ('Text "error coso")) (NoErrorFcf))"Equality operator. data OpEq t1 t2 requirementsüA common constraint is to have a |Requirement| to be fullfilled, and something to unify with the result of the operation.  requirementsShow for types requirementsOpError operation. A Ì call to this operation produces a type error showing the argument message. requirementsRequire class. Use this when a dependent type (a la Haskell) requiresÔ some type level property for a function to be defined to program nice type errors. requirements1Failing and printing of an |OpError| requirement.            *requirements-0.7.0.2-SERBoJIVzf9VgMaZvWR6yData.Type.Require:++EquEqual RequireEqResOpEq AssertEq'RequireEqWithMsgEqMsg RequireEqResFCondEqEvalExpAssertEq RequireEqOpEq'RequireRShowTEFromEMShowCTX IsEmptyMsg IsEmptyCtxOpErrorRequireReqRreqemptyCtx appendCtx$fRequireOpErrorctx