proposal: add func Must[T any](value T, err error) T

[it512]

Proposal Details

add function Must[T any](value T, err error) T

Too many function return value and error , and a lot of library and golang implement Must(x, error) .

func Must[T any](value T, err error) T{
    if err != nil {
        panic(err)
    }
    return value
}

put into errors package?

[ALTree]

This is #54297 and #60846, closing in favour of the older thread.