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In standard go you would not implement Is but would use the errors.Is call. How would this work if it is a sentinel error as you would use with errors.Is??
by zarldev 1y ago
In standard go you would not implement Is but would use the errors.Is call. How would this work if it is a sentinel error as you would use with errors.Is??
- arccy 1y agohttps://pkg.go.dev/errors#Is https://pkg.go.dev/errors#Is > An error is considered to match a target if it is equal to that target or if it implements a method Is(error) bool such that Is(target) returns true. by default errors.Is matches the exact error variable, but you can use it to match other errors as well.
- zarldev 1y agoI stand corrected. Still you cannot implement an Is on a sentinel error and is only applicable to concrete error types. And if I'm using concrete types I'm going to us errors.As