diff options
Diffstat (limited to 'vendor/xorm.io/xorm/convert.go')
-rw-r--r-- | vendor/xorm.io/xorm/convert.go | 378 |
1 files changed, 0 insertions, 378 deletions
diff --git a/vendor/xorm.io/xorm/convert.go b/vendor/xorm.io/xorm/convert.go deleted file mode 100644 index b7f30caddc..0000000000 --- a/vendor/xorm.io/xorm/convert.go +++ /dev/null @@ -1,378 +0,0 @@ -// Copyright 2017 The Xorm Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package xorm - -import ( - "database/sql/driver" - "errors" - "fmt" - "reflect" - "strconv" - "time" -) - -var errNilPtr = errors.New("destination pointer is nil") // embedded in descriptive error - -func strconvErr(err error) error { - if ne, ok := err.(*strconv.NumError); ok { - return ne.Err - } - return err -} - -func cloneBytes(b []byte) []byte { - if b == nil { - return nil - } - c := make([]byte, len(b)) - copy(c, b) - return c -} - -func asString(src interface{}) string { - switch v := src.(type) { - case string: - return v - case []byte: - return string(v) - } - rv := reflect.ValueOf(src) - switch rv.Kind() { - case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: - return strconv.FormatInt(rv.Int(), 10) - case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64: - return strconv.FormatUint(rv.Uint(), 10) - case reflect.Float64: - return strconv.FormatFloat(rv.Float(), 'g', -1, 64) - case reflect.Float32: - return strconv.FormatFloat(rv.Float(), 'g', -1, 32) - case reflect.Bool: - return strconv.FormatBool(rv.Bool()) - } - return fmt.Sprintf("%v", src) -} - -func asBytes(buf []byte, rv reflect.Value) (b []byte, ok bool) { - switch rv.Kind() { - case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: - return strconv.AppendInt(buf, rv.Int(), 10), true - case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64: - return strconv.AppendUint(buf, rv.Uint(), 10), true - case reflect.Float32: - return strconv.AppendFloat(buf, rv.Float(), 'g', -1, 32), true - case reflect.Float64: - return strconv.AppendFloat(buf, rv.Float(), 'g', -1, 64), true - case reflect.Bool: - return strconv.AppendBool(buf, rv.Bool()), true - case reflect.String: - s := rv.String() - return append(buf, s...), true - } - return -} - -// convertAssign copies to dest the value in src, converting it if possible. -// An error is returned if the copy would result in loss of information. -// dest should be a pointer type. -func convertAssign(dest, src interface{}) error { - // Common cases, without reflect. - switch s := src.(type) { - case string: - switch d := dest.(type) { - case *string: - if d == nil { - return errNilPtr - } - *d = s - return nil - case *[]byte: - if d == nil { - return errNilPtr - } - *d = []byte(s) - return nil - } - case []byte: - switch d := dest.(type) { - case *string: - if d == nil { - return errNilPtr - } - *d = string(s) - return nil - case *interface{}: - if d == nil { - return errNilPtr - } - *d = cloneBytes(s) - return nil - case *[]byte: - if d == nil { - return errNilPtr - } - *d = cloneBytes(s) - return nil - } - - case time.Time: - switch d := dest.(type) { - case *string: - *d = s.Format(time.RFC3339Nano) - return nil - case *[]byte: - if d == nil { - return errNilPtr - } - *d = []byte(s.Format(time.RFC3339Nano)) - return nil - } - case nil: - switch d := dest.(type) { - case *interface{}: - if d == nil { - return errNilPtr - } - *d = nil - return nil - case *[]byte: - if d == nil { - return errNilPtr - } - *d = nil - return nil - } - } - - var sv reflect.Value - - switch d := dest.(type) { - case *string: - sv = reflect.ValueOf(src) - switch sv.Kind() { - case reflect.Bool, - reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64, - reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, - reflect.Float32, reflect.Float64: - *d = asString(src) - return nil - } - case *[]byte: - sv = reflect.ValueOf(src) - if b, ok := asBytes(nil, sv); ok { - *d = b - return nil - } - case *bool: - bv, err := driver.Bool.ConvertValue(src) - if err == nil { - *d = bv.(bool) - } - return err - case *interface{}: - *d = src - return nil - } - - return convertAssignV(reflect.ValueOf(dest), src) -} - -func convertAssignV(dpv reflect.Value, src interface{}) error { - if dpv.Kind() != reflect.Ptr { - return errors.New("destination not a pointer") - } - if dpv.IsNil() { - return errNilPtr - } - - var sv = reflect.ValueOf(src) - - dv := reflect.Indirect(dpv) - if sv.IsValid() && sv.Type().AssignableTo(dv.Type()) { - switch b := src.(type) { - case []byte: - dv.Set(reflect.ValueOf(cloneBytes(b))) - default: - dv.Set(sv) - } - return nil - } - - if dv.Kind() == sv.Kind() && sv.Type().ConvertibleTo(dv.Type()) { - dv.Set(sv.Convert(dv.Type())) - return nil - } - - switch dv.Kind() { - case reflect.Ptr: - if src == nil { - dv.Set(reflect.Zero(dv.Type())) - return nil - } - - dv.Set(reflect.New(dv.Type().Elem())) - return convertAssign(dv.Interface(), src) - case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: - s := asString(src) - i64, err := strconv.ParseInt(s, 10, dv.Type().Bits()) - if err != nil { - err = strconvErr(err) - return fmt.Errorf("converting driver.Value type %T (%q) to a %s: %v", src, s, dv.Kind(), err) - } - dv.SetInt(i64) - return nil - case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64: - s := asString(src) - u64, err := strconv.ParseUint(s, 10, dv.Type().Bits()) - if err != nil { - err = strconvErr(err) - return fmt.Errorf("converting driver.Value type %T (%q) to a %s: %v", src, s, dv.Kind(), err) - } - dv.SetUint(u64) - return nil - case reflect.Float32, reflect.Float64: - s := asString(src) - f64, err := strconv.ParseFloat(s, dv.Type().Bits()) - if err != nil { - err = strconvErr(err) - return fmt.Errorf("converting driver.Value type %T (%q) to a %s: %v", src, s, dv.Kind(), err) - } - dv.SetFloat(f64) - return nil - case reflect.String: - dv.SetString(asString(src)) - return nil - } - - return fmt.Errorf("unsupported Scan, storing driver.Value type %T into type %T", src, dpv.Interface()) -} - -func asKind(vv reflect.Value, tp reflect.Type) (interface{}, error) { - switch tp.Kind() { - case reflect.Int64: - return vv.Int(), nil - case reflect.Int: - return int(vv.Int()), nil - case reflect.Int32: - return int32(vv.Int()), nil - case reflect.Int16: - return int16(vv.Int()), nil - case reflect.Int8: - return int8(vv.Int()), nil - case reflect.Uint64: - return vv.Uint(), nil - case reflect.Uint: - return uint(vv.Uint()), nil - case reflect.Uint32: - return uint32(vv.Uint()), nil - case reflect.Uint16: - return uint16(vv.Uint()), nil - case reflect.Uint8: - return uint8(vv.Uint()), nil - case reflect.String: - return vv.String(), nil - case reflect.Slice: - if tp.Elem().Kind() == reflect.Uint8 { - v, err := strconv.ParseInt(string(vv.Interface().([]byte)), 10, 64) - if err != nil { - return nil, err - } - return v, nil - } - - } - return nil, fmt.Errorf("unsupported primary key type: %v, %v", tp, vv) -} - -func asBool(bs []byte) (bool, error) { - if len(bs) == 0 { - return false, nil - } - if bs[0] == 0x00 { - return false, nil - } else if bs[0] == 0x01 { - return true, nil - } - return strconv.ParseBool(string(bs)) -} - -// str2PK convert string value to primary key value according to tp -func str2PKValue(s string, tp reflect.Type) (reflect.Value, error) { - var err error - var result interface{} - var defReturn = reflect.Zero(tp) - - switch tp.Kind() { - case reflect.Int: - result, err = strconv.Atoi(s) - if err != nil { - return defReturn, fmt.Errorf("convert %s as int: %s", s, err.Error()) - } - case reflect.Int8: - x, err := strconv.Atoi(s) - if err != nil { - return defReturn, fmt.Errorf("convert %s as int8: %s", s, err.Error()) - } - result = int8(x) - case reflect.Int16: - x, err := strconv.Atoi(s) - if err != nil { - return defReturn, fmt.Errorf("convert %s as int16: %s", s, err.Error()) - } - result = int16(x) - case reflect.Int32: - x, err := strconv.Atoi(s) - if err != nil { - return defReturn, fmt.Errorf("convert %s as int32: %s", s, err.Error()) - } - result = int32(x) - case reflect.Int64: - result, err = strconv.ParseInt(s, 10, 64) - if err != nil { - return defReturn, fmt.Errorf("convert %s as int64: %s", s, err.Error()) - } - case reflect.Uint: - x, err := strconv.ParseUint(s, 10, 64) - if err != nil { - return defReturn, fmt.Errorf("convert %s as uint: %s", s, err.Error()) - } - result = uint(x) - case reflect.Uint8: - x, err := strconv.ParseUint(s, 10, 64) - if err != nil { - return defReturn, fmt.Errorf("convert %s as uint8: %s", s, err.Error()) - } - result = uint8(x) - case reflect.Uint16: - x, err := strconv.ParseUint(s, 10, 64) - if err != nil { - return defReturn, fmt.Errorf("convert %s as uint16: %s", s, err.Error()) - } - result = uint16(x) - case reflect.Uint32: - x, err := strconv.ParseUint(s, 10, 64) - if err != nil { - return defReturn, fmt.Errorf("convert %s as uint32: %s", s, err.Error()) - } - result = uint32(x) - case reflect.Uint64: - result, err = strconv.ParseUint(s, 10, 64) - if err != nil { - return defReturn, fmt.Errorf("convert %s as uint64: %s", s, err.Error()) - } - case reflect.String: - result = s - default: - return defReturn, errors.New("unsupported convert type") - } - return reflect.ValueOf(result).Convert(tp), nil -} - -func str2PK(s string, tp reflect.Type) (interface{}, error) { - v, err := str2PKValue(s, tp) - if err != nil { - return nil, err - } - return v.Interface(), nil -} |