golang.org/x/xerrors
Package xerrors implements functions to manipulate errors. This package is based on the Go 2 proposal for error values: These functions were incorporated into the standard library's errors package in Go 1.13: - Is - As - Unwrap Also, Errorf's %w verb was incorporated into fmt.Errorf. Use this package to get equivalent behavior in all supported Go versions. No other features of this package were included in Go 1.13, and at present there are no plans to include any of them.
Readme
This repository holds the transition packages for the new Go 1.13 error values. See golang.org/design/29934-error-values.
FAQs
Package xerrors implements functions to manipulate errors. This package is based on the Go 2 proposal for error values: These functions were incorporated into the standard library's errors package in Go 1.13: - Is - As - Unwrap Also, Errorf's %w verb was incorporated into fmt.Errorf. Use this package to get equivalent behavior in all supported Go versions. No other features of this package were included in Go 1.13, and at present there are no plans to include any of them.
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