taldir

Directory service to resolve wallet mailboxes by messenger addresses
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as.go (632B)

      1 //go:build !go1.26
      2 
      3 package pq
      4 
      5 import (
      6 	"errors"
      7 	"slices"
      8 )
      9 
     10 // As asserts that the given error is [pq.Error] and returns it, returning nil
     11 // if it's not a pq.Error.
     12 //
     13 // It will return nil if the pq.Error is not one of the given error codes. If no
     14 // codes are given it will always return the Error.
     15 //
     16 // This is safe to call with a nil error.
     17 func As(err error, codes ...ErrorCode) *Error {
     18 	if err == nil { // Not strictly needed, but prevents alloc for nil errors.
     19 		return nil
     20 	}
     21 	pqErr := new(Error)
     22 	if errors.As(err, &pqErr) && (len(codes) == 0 || slices.Contains(codes, pqErr.Code)) {
     23 		return pqErr
     24 	}
     25 	return nil
     26 }