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path: root/vendor/github.com/uptrace/bun/schema/zerochecker.go
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Diffstat (limited to 'vendor/github.com/uptrace/bun/schema/zerochecker.go')
-rw-r--r--vendor/github.com/uptrace/bun/schema/zerochecker.go161
1 files changed, 0 insertions, 161 deletions
diff --git a/vendor/github.com/uptrace/bun/schema/zerochecker.go b/vendor/github.com/uptrace/bun/schema/zerochecker.go
deleted file mode 100644
index 7c8418eaf..000000000
--- a/vendor/github.com/uptrace/bun/schema/zerochecker.go
+++ /dev/null
@@ -1,161 +0,0 @@
-package schema
-
-import (
- "database/sql/driver"
- "reflect"
-)
-
-var isZeroerType = reflect.TypeFor[isZeroer]()
-
-type isZeroer interface {
- IsZero() bool
-}
-
-func isZero(v interface{}) bool {
- switch v := v.(type) {
- case isZeroer:
- return v.IsZero()
- case string:
- return v == ""
- case []byte:
- return v == nil
- case int:
- return v == 0
- case int64:
- return v == 0
- case uint:
- return v == 0
- case uint64:
- return v == 0
- case float32:
- return v == 0
- case float64:
- return v == 0
- case int8:
- return v == 0
- case int16:
- return v == 0
- case int32:
- return v == 0
- case uint8:
- return v == 0
- case uint16:
- return v == 0
- case uint32:
- return v == 0
- default:
- rv := reflect.ValueOf(v)
- fn := zeroChecker(rv.Type())
- return fn(rv)
- }
-}
-
-type IsZeroerFunc func(reflect.Value) bool
-
-func zeroChecker(typ reflect.Type) IsZeroerFunc {
- if typ.Implements(isZeroerType) {
- return isZeroInterface
- }
-
- kind := typ.Kind()
-
- if kind != reflect.Ptr {
- ptr := reflect.PointerTo(typ)
- if ptr.Implements(isZeroerType) {
- return addrChecker(isZeroInterface)
- }
- }
-
- switch kind {
- case reflect.Array:
- if typ.Elem().Kind() == reflect.Uint8 {
- return isZeroBytes
- }
- return isZeroLen
- case reflect.String:
- return isZeroLen
- case reflect.Bool:
- return isZeroBool
- case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
- return isZeroInt
- case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
- return isZeroUint
- case reflect.Float32, reflect.Float64:
- return isZeroFloat
- case reflect.Interface, reflect.Ptr, reflect.Slice, reflect.Map:
- return isNil
- }
-
- if typ.Implements(driverValuerType) {
- return isZeroDriverValue
- }
-
- return notZero
-}
-
-func addrChecker(fn IsZeroerFunc) IsZeroerFunc {
- return func(v reflect.Value) bool {
- if !v.CanAddr() {
- return false
- }
- return fn(v.Addr())
- }
-}
-
-func isZeroInterface(v reflect.Value) bool {
- if v.Kind() == reflect.Ptr && v.IsNil() {
- return true
- }
- return v.Interface().(isZeroer).IsZero()
-}
-
-func isZeroDriverValue(v reflect.Value) bool {
- if v.Kind() == reflect.Ptr {
- return v.IsNil()
- }
-
- valuer := v.Interface().(driver.Valuer)
- value, err := valuer.Value()
- if err != nil {
- return false
- }
- return value == nil
-}
-
-func isZeroLen(v reflect.Value) bool {
- return v.Len() == 0
-}
-
-func isNil(v reflect.Value) bool {
- return v.IsNil()
-}
-
-func isZeroBool(v reflect.Value) bool {
- return !v.Bool()
-}
-
-func isZeroInt(v reflect.Value) bool {
- return v.Int() == 0
-}
-
-func isZeroUint(v reflect.Value) bool {
- return v.Uint() == 0
-}
-
-func isZeroFloat(v reflect.Value) bool {
- return v.Float() == 0
-}
-
-func isZeroBytes(v reflect.Value) bool {
- b := v.Slice(0, v.Len()).Bytes()
- for _, c := range b {
- if c != 0 {
- return false
- }
- }
- return true
-}
-
-func notZero(v reflect.Value) bool {
- return false
-}