¶template <typename T,
          typename RecoveryFtor,
          typename... HandlerTs>
Expected<T> handleExpected(
    Expected<T> ValOrErr,
    RecoveryFtor&& RecoveryPath,
    HandlerTs&&... Handlers)

Description

Handle any errors (if present) in an Expected <T >, then try a recovery path. If the incoming value is a success value it is returned unmodified. If it is a failure value then it the contained error is passed to handleErrors. If handleErrors is able to handle the error then the RecoveryPath functor is called to supply the final result. If handleErrors is not able to handle all errors then the unhandled errors are returned. This utility enables the follow pattern:

Declared at: llvm/include/llvm/Support/Error.h:959

Templates

T

RecoveryFtor

HandlerTs

Parameters

Expected<T> ValOrErr

RecoveryFtor&& RecoveryPath

HandlerTs&&... Handlers