diff options
Diffstat (limited to 'vendor/github.com/jackc/pgx/v5/internal/anynil/anynil.go')
-rw-r--r-- | vendor/github.com/jackc/pgx/v5/internal/anynil/anynil.go | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/vendor/github.com/jackc/pgx/v5/internal/anynil/anynil.go b/vendor/github.com/jackc/pgx/v5/internal/anynil/anynil.go new file mode 100644 index 000000000..9a48c1a84 --- /dev/null +++ b/vendor/github.com/jackc/pgx/v5/internal/anynil/anynil.go @@ -0,0 +1,36 @@ +package anynil + +import "reflect" + +// Is returns true if value is any type of nil. e.g. nil or []byte(nil). +func Is(value any) bool { + if value == nil { + return true + } + + refVal := reflect.ValueOf(value) + switch refVal.Kind() { + case reflect.Chan, reflect.Func, reflect.Map, reflect.Ptr, reflect.UnsafePointer, reflect.Interface, reflect.Slice: + return refVal.IsNil() + default: + return false + } +} + +// Normalize converts typed nils (e.g. []byte(nil)) into untyped nil. Other values are returned unmodified. +func Normalize(v any) any { + if Is(v) { + return nil + } + return v +} + +// NormalizeSlice converts all typed nils (e.g. []byte(nil)) in s into untyped nils. Other values are unmodified. s is +// mutated in place. +func NormalizeSlice(s []any) { + for i := range s { + if Is(s[i]) { + s[i] = nil + } + } +} |