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author | 2023-02-25 13:12:40 +0100 | |
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committer | 2023-02-25 12:12:40 +0000 | |
commit | ecdc8379fa8f9d88faca626e7de748c2afbe4910 (patch) | |
tree | 8c20a5826db2136fc89bee45e15355c5899fa65b /vendor/github.com/goccy/go-json/internal/decoder/assign.go | |
parent | [bugfix] Fix deleted status causing issues when getting bookmark (#1551) (diff) | |
download | gotosocial-ecdc8379fa8f9d88faca626e7de748c2afbe4910.tar.xz |
[chore] Update gin to v1.9.0 (#1553)
Diffstat (limited to 'vendor/github.com/goccy/go-json/internal/decoder/assign.go')
-rw-r--r-- | vendor/github.com/goccy/go-json/internal/decoder/assign.go | 438 |
1 files changed, 438 insertions, 0 deletions
diff --git a/vendor/github.com/goccy/go-json/internal/decoder/assign.go b/vendor/github.com/goccy/go-json/internal/decoder/assign.go new file mode 100644 index 000000000..c53e6ad9f --- /dev/null +++ b/vendor/github.com/goccy/go-json/internal/decoder/assign.go @@ -0,0 +1,438 @@ +package decoder + +import ( + "fmt" + "reflect" + "strconv" +) + +var ( + nilValue = reflect.ValueOf(nil) +) + +func AssignValue(src, dst reflect.Value) error { + if dst.Type().Kind() != reflect.Ptr { + return fmt.Errorf("invalid dst type. required pointer type: %T", dst.Type()) + } + casted, err := castValue(dst.Elem().Type(), src) + if err != nil { + return err + } + dst.Elem().Set(casted) + return nil +} + +func castValue(t reflect.Type, v reflect.Value) (reflect.Value, error) { + switch t.Kind() { + case reflect.Int: + vv, err := castInt(v) + if err != nil { + return nilValue, err + } + return reflect.ValueOf(int(vv.Int())), nil + case reflect.Int8: + vv, err := castInt(v) + if err != nil { + return nilValue, err + } + return reflect.ValueOf(int8(vv.Int())), nil + case reflect.Int16: + vv, err := castInt(v) + if err != nil { + return nilValue, err + } + return reflect.ValueOf(int16(vv.Int())), nil + case reflect.Int32: + vv, err := castInt(v) + if err != nil { + return nilValue, err + } + return reflect.ValueOf(int32(vv.Int())), nil + case reflect.Int64: + return castInt(v) + case reflect.Uint: + vv, err := castUint(v) + if err != nil { + return nilValue, err + } + return reflect.ValueOf(uint(vv.Uint())), nil + case reflect.Uint8: + vv, err := castUint(v) + if err != nil { + return nilValue, err + } + return reflect.ValueOf(uint8(vv.Uint())), nil + case reflect.Uint16: + vv, err := castUint(v) + if err != nil { + return nilValue, err + } + return reflect.ValueOf(uint16(vv.Uint())), nil + case reflect.Uint32: + vv, err := castUint(v) + if err != nil { + return nilValue, err + } + return reflect.ValueOf(uint32(vv.Uint())), nil + case reflect.Uint64: + return castUint(v) + case reflect.Uintptr: + vv, err := castUint(v) + if err != nil { + return nilValue, err + } + return reflect.ValueOf(uintptr(vv.Uint())), nil + case reflect.String: + return castString(v) + case reflect.Bool: + return castBool(v) + case reflect.Float32: + vv, err := castFloat(v) + if err != nil { + return nilValue, err + } + return reflect.ValueOf(float32(vv.Float())), nil + case reflect.Float64: + return castFloat(v) + case reflect.Array: + return castArray(t, v) + case reflect.Slice: + return castSlice(t, v) + case reflect.Map: + return castMap(t, v) + case reflect.Struct: + return castStruct(t, v) + } + return v, nil +} + +func castInt(v reflect.Value) (reflect.Value, error) { + switch v.Type().Kind() { + case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: + return v, nil + case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr: + return reflect.ValueOf(int64(v.Uint())), nil + case reflect.String: + i64, err := strconv.ParseInt(v.String(), 10, 64) + if err != nil { + return nilValue, err + } + return reflect.ValueOf(i64), nil + case reflect.Bool: + if v.Bool() { + return reflect.ValueOf(int64(1)), nil + } + return reflect.ValueOf(int64(0)), nil + case reflect.Float32, reflect.Float64: + return reflect.ValueOf(int64(v.Float())), nil + case reflect.Array: + if v.Len() > 0 { + return castInt(v.Index(0)) + } + return nilValue, fmt.Errorf("failed to cast to int64 from empty array") + case reflect.Slice: + if v.Len() > 0 { + return castInt(v.Index(0)) + } + return nilValue, fmt.Errorf("failed to cast to int64 from empty slice") + case reflect.Interface: + return castInt(reflect.ValueOf(v.Interface())) + case reflect.Map: + return nilValue, fmt.Errorf("failed to cast to int64 from map") + case reflect.Struct: + return nilValue, fmt.Errorf("failed to cast to int64 from struct") + case reflect.Ptr: + return castInt(v.Elem()) + } + return nilValue, fmt.Errorf("failed to cast to int64 from %s", v.Type().Kind()) +} + +func castUint(v reflect.Value) (reflect.Value, error) { + switch v.Type().Kind() { + case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: + return reflect.ValueOf(uint64(v.Int())), nil + case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr: + return v, nil + case reflect.String: + u64, err := strconv.ParseUint(v.String(), 10, 64) + if err != nil { + return nilValue, err + } + return reflect.ValueOf(u64), nil + case reflect.Bool: + if v.Bool() { + return reflect.ValueOf(uint64(1)), nil + } + return reflect.ValueOf(uint64(0)), nil + case reflect.Float32, reflect.Float64: + return reflect.ValueOf(uint64(v.Float())), nil + case reflect.Array: + if v.Len() > 0 { + return castUint(v.Index(0)) + } + return nilValue, fmt.Errorf("failed to cast to uint64 from empty array") + case reflect.Slice: + if v.Len() > 0 { + return castUint(v.Index(0)) + } + return nilValue, fmt.Errorf("failed to cast to uint64 from empty slice") + case reflect.Interface: + return castUint(reflect.ValueOf(v.Interface())) + case reflect.Map: + return nilValue, fmt.Errorf("failed to cast to uint64 from map") + case reflect.Struct: + return nilValue, fmt.Errorf("failed to cast to uint64 from struct") + case reflect.Ptr: + return castUint(v.Elem()) + } + return nilValue, fmt.Errorf("failed to cast to uint64 from %s", v.Type().Kind()) +} + +func castString(v reflect.Value) (reflect.Value, error) { + switch v.Type().Kind() { + case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: + return reflect.ValueOf(fmt.Sprint(v.Int())), nil + case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr: + return reflect.ValueOf(fmt.Sprint(v.Uint())), nil + case reflect.String: + return v, nil + case reflect.Bool: + if v.Bool() { + return reflect.ValueOf("true"), nil + } + return reflect.ValueOf("false"), nil + case reflect.Float32, reflect.Float64: + return reflect.ValueOf(fmt.Sprint(v.Float())), nil + case reflect.Array: + if v.Len() > 0 { + return castString(v.Index(0)) + } + return nilValue, fmt.Errorf("failed to cast to string from empty array") + case reflect.Slice: + if v.Len() > 0 { + return castString(v.Index(0)) + } + return nilValue, fmt.Errorf("failed to cast to string from empty slice") + case reflect.Interface: + return castString(reflect.ValueOf(v.Interface())) + case reflect.Map: + return nilValue, fmt.Errorf("failed to cast to string from map") + case reflect.Struct: + return nilValue, fmt.Errorf("failed to cast to string from struct") + case reflect.Ptr: + return castString(v.Elem()) + } + return nilValue, fmt.Errorf("failed to cast to string from %s", v.Type().Kind()) +} + +func castBool(v reflect.Value) (reflect.Value, error) { + switch v.Type().Kind() { + case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: + switch v.Int() { + case 0: + return reflect.ValueOf(false), nil + case 1: + return reflect.ValueOf(true), nil + } + return nilValue, fmt.Errorf("failed to cast to bool from %d", v.Int()) + case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr: + switch v.Uint() { + case 0: + return reflect.ValueOf(false), nil + case 1: + return reflect.ValueOf(true), nil + } + return nilValue, fmt.Errorf("failed to cast to bool from %d", v.Uint()) + case reflect.String: + b, err := strconv.ParseBool(v.String()) + if err != nil { + return nilValue, err + } + return reflect.ValueOf(b), nil + case reflect.Bool: + return v, nil + case reflect.Float32, reflect.Float64: + switch v.Float() { + case 0: + return reflect.ValueOf(false), nil + case 1: + return reflect.ValueOf(true), nil + } + return nilValue, fmt.Errorf("failed to cast to bool from %f", v.Float()) + case reflect.Array: + if v.Len() > 0 { + return castBool(v.Index(0)) + } + return nilValue, fmt.Errorf("failed to cast to string from empty array") + case reflect.Slice: + if v.Len() > 0 { + return castBool(v.Index(0)) + } + return nilValue, fmt.Errorf("failed to cast to string from empty slice") + case reflect.Interface: + return castBool(reflect.ValueOf(v.Interface())) + case reflect.Map: + return nilValue, fmt.Errorf("failed to cast to string from map") + case reflect.Struct: + return nilValue, fmt.Errorf("failed to cast to string from struct") + case reflect.Ptr: + return castBool(v.Elem()) + } + return nilValue, fmt.Errorf("failed to cast to bool from %s", v.Type().Kind()) +} + +func castFloat(v reflect.Value) (reflect.Value, error) { + switch v.Type().Kind() { + case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64: + return reflect.ValueOf(float64(v.Int())), nil + case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr: + return reflect.ValueOf(float64(v.Uint())), nil + case reflect.String: + f64, err := strconv.ParseFloat(v.String(), 64) + if err != nil { + return nilValue, err + } + return reflect.ValueOf(f64), nil + case reflect.Bool: + if v.Bool() { + return reflect.ValueOf(float64(1)), nil + } + return reflect.ValueOf(float64(0)), nil + case reflect.Float32, reflect.Float64: + return v, nil + case reflect.Array: + if v.Len() > 0 { + return castFloat(v.Index(0)) + } + return nilValue, fmt.Errorf("failed to cast to float64 from empty array") + case reflect.Slice: + if v.Len() > 0 { + return castFloat(v.Index(0)) + } + return nilValue, fmt.Errorf("failed to cast to float64 from empty slice") + case reflect.Interface: + return castFloat(reflect.ValueOf(v.Interface())) + case reflect.Map: + return nilValue, fmt.Errorf("failed to cast to float64 from map") + case reflect.Struct: + return nilValue, fmt.Errorf("failed to cast to float64 from struct") + case reflect.Ptr: + return castFloat(v.Elem()) + } + return nilValue, fmt.Errorf("failed to cast to float64 from %s", v.Type().Kind()) +} + +func castArray(t reflect.Type, v reflect.Value) (reflect.Value, error) { + kind := v.Type().Kind() + if kind == reflect.Interface { + return castArray(t, reflect.ValueOf(v.Interface())) + } + if kind != reflect.Slice && kind != reflect.Array { + return nilValue, fmt.Errorf("failed to cast to array from %s", kind) + } + if t.Elem() == v.Type().Elem() { + return v, nil + } + if t.Len() != v.Len() { + return nilValue, fmt.Errorf("failed to cast [%d]array from slice of %d length", t.Len(), v.Len()) + } + ret := reflect.New(t).Elem() + for i := 0; i < v.Len(); i++ { + vv, err := castValue(t.Elem(), v.Index(i)) + if err != nil { + return nilValue, err + } + ret.Index(i).Set(vv) + } + return ret, nil +} + +func castSlice(t reflect.Type, v reflect.Value) (reflect.Value, error) { + kind := v.Type().Kind() + if kind == reflect.Interface { + return castSlice(t, reflect.ValueOf(v.Interface())) + } + if kind != reflect.Slice && kind != reflect.Array { + return nilValue, fmt.Errorf("failed to cast to slice from %s", kind) + } + if t.Elem() == v.Type().Elem() { + return v, nil + } + ret := reflect.MakeSlice(t, v.Len(), v.Len()) + for i := 0; i < v.Len(); i++ { + vv, err := castValue(t.Elem(), v.Index(i)) + if err != nil { + return nilValue, err + } + ret.Index(i).Set(vv) + } + return ret, nil +} + +func castMap(t reflect.Type, v reflect.Value) (reflect.Value, error) { + ret := reflect.MakeMap(t) + switch v.Type().Kind() { + case reflect.Map: + iter := v.MapRange() + for iter.Next() { + key, err := castValue(t.Key(), iter.Key()) + if err != nil { + return nilValue, err + } + value, err := castValue(t.Elem(), iter.Value()) + if err != nil { + return nilValue, err + } + ret.SetMapIndex(key, value) + } + return ret, nil + case reflect.Interface: + return castMap(t, reflect.ValueOf(v.Interface())) + case reflect.Slice: + if v.Len() > 0 { + return castMap(t, v.Index(0)) + } + return nilValue, fmt.Errorf("failed to cast to map from empty slice") + } + return nilValue, fmt.Errorf("failed to cast to map from %s", v.Type().Kind()) +} + +func castStruct(t reflect.Type, v reflect.Value) (reflect.Value, error) { + ret := reflect.New(t).Elem() + switch v.Type().Kind() { + case reflect.Map: + iter := v.MapRange() + for iter.Next() { + key := iter.Key() + k, err := castString(key) + if err != nil { + return nilValue, err + } + fieldName := k.String() + field, ok := t.FieldByName(fieldName) + if ok { + value, err := castValue(field.Type, iter.Value()) + if err != nil { + return nilValue, err + } + ret.FieldByName(fieldName).Set(value) + } + } + return ret, nil + case reflect.Struct: + for i := 0; i < v.Type().NumField(); i++ { + name := v.Type().Field(i).Name + ret.FieldByName(name).Set(v.FieldByName(name)) + } + return ret, nil + case reflect.Interface: + return castStruct(t, reflect.ValueOf(v.Interface())) + case reflect.Slice: + if v.Len() > 0 { + return castStruct(t, v.Index(0)) + } + return nilValue, fmt.Errorf("failed to cast to struct from empty slice") + default: + return nilValue, fmt.Errorf("failed to cast to struct from %s", v.Type().Kind()) + } +} |