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datatype.go
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datatype.go
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// Copyright 2019 The ebml-go authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package ebml
import (
"reflect"
)
// DataType represents EBML Element data type.
type DataType int
// EBML Element data types.
const (
DataTypeMaster DataType = iota
DataTypeInt
DataTypeUInt
DataTypeDate
DataTypeFloat
DataTypeBinary
DataTypeString
DataTypeBlock
)
var dataTypeName = map[DataType]string{
DataTypeMaster: "Master",
DataTypeInt: "Int",
DataTypeUInt: "UInt",
DataTypeDate: "Date",
DataTypeFloat: "Float",
DataTypeBinary: "Binary",
DataTypeString: "String",
DataTypeBlock: "Block",
}
func (t DataType) String() string {
if name, ok := dataTypeName[t]; ok {
return name
}
return "unknown"
}
func isConvertible(src, dst reflect.Type) bool {
switch src.Kind() {
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
switch dst.Kind() {
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
return true
default:
return false
}
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
switch dst.Kind() {
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
return true
default:
return false
}
case reflect.Float32, reflect.Float64:
switch dst.Kind() {
case reflect.Float32, reflect.Float64:
return true
default:
return false
}
}
return false
}