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Pg to bun (#148)
* start moving to bun * changing more stuff * more * and yet more * tests passing * seems stable now * more big changes * small fix * little fixes
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parent
071eca20ce
commit
2dc9fc1626
713 changed files with 98694 additions and 22704 deletions
126
vendor/github.com/uptrace/bun/schema/zerochecker.go
generated
vendored
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126
vendor/github.com/uptrace/bun/schema/zerochecker.go
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vendored
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@ -0,0 +1,126 @@
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package schema
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import (
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"database/sql/driver"
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"reflect"
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)
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var isZeroerType = reflect.TypeOf((*isZeroer)(nil)).Elem()
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type isZeroer interface {
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IsZero() bool
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}
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type IsZeroerFunc func(reflect.Value) bool
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func FieldZeroChecker(field *Field) IsZeroerFunc {
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return zeroChecker(field.IndirectType)
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}
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func zeroChecker(typ reflect.Type) IsZeroerFunc {
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if typ.Implements(isZeroerType) {
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return isZeroInterface
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}
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kind := typ.Kind()
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if kind != reflect.Ptr {
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ptr := reflect.PtrTo(typ)
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if ptr.Implements(isZeroerType) {
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return addrChecker(isZeroInterface)
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}
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}
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switch kind {
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case reflect.Array:
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if typ.Elem().Kind() == reflect.Uint8 {
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return isZeroBytes
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}
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return isZeroLen
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case reflect.String:
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return isZeroLen
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case reflect.Bool:
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return isZeroBool
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case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
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return isZeroInt
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case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
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return isZeroUint
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case reflect.Float32, reflect.Float64:
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return isZeroFloat
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case reflect.Interface, reflect.Ptr, reflect.Slice, reflect.Map:
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return isNil
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}
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if typ.Implements(driverValuerType) {
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return isZeroDriverValue
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}
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return notZero
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}
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func addrChecker(fn IsZeroerFunc) IsZeroerFunc {
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return func(v reflect.Value) bool {
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if !v.CanAddr() {
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return false
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}
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return fn(v.Addr())
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}
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}
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func isZeroInterface(v reflect.Value) bool {
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if v.Kind() == reflect.Ptr && v.IsNil() {
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return true
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}
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return v.Interface().(isZeroer).IsZero()
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}
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func isZeroDriverValue(v reflect.Value) bool {
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if v.Kind() == reflect.Ptr {
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return v.IsNil()
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}
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valuer := v.Interface().(driver.Valuer)
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value, err := valuer.Value()
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if err != nil {
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return false
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}
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return value == nil
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}
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func isZeroLen(v reflect.Value) bool {
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return v.Len() == 0
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}
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func isNil(v reflect.Value) bool {
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return v.IsNil()
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}
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func isZeroBool(v reflect.Value) bool {
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return !v.Bool()
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}
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func isZeroInt(v reflect.Value) bool {
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return v.Int() == 0
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}
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func isZeroUint(v reflect.Value) bool {
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return v.Uint() == 0
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}
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func isZeroFloat(v reflect.Value) bool {
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return v.Float() == 0
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}
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func isZeroBytes(v reflect.Value) bool {
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b := v.Slice(0, v.Len()).Bytes()
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for _, c := range b {
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if c != 0 {
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return false
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}
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}
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return true
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}
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func notZero(v reflect.Value) bool {
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return false
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}
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