Package errors v2.4.0

As checks if any error of the stack matches the expectedType API machting the standard library but allowing to wrap errors with ErrCtx + errgo or pkg/errors.

Is checks if any error of the stack matches the error value expectedError API machting the standard library but allowing to wrap errors with ErrCtx + errgo or pkg/errors.

IsRootCause return true if the cause of the given error is the same type as mytype.

NewValidationErrors return an empty ValidationErrors struct.

Deprecated: Use `Wrap` or `Wrapf` instead of `Notef`.

RootCause returns the cause of an errors stack, whatever the method they used to be stacked: either errgo.Notef or errors.Wrapf.

RootCtxOrFallback unwrap all wrapped errors from err to get the deepest context from ErrCtx errors.

UnwrapError tries to unwrap `err`.

ValidationErrors store each errors associated to every fields of a model.

ValidationErrorsBuilder is used to provide a simple way to create a ValidationErrors struct.