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value.go
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value.go
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// Copyright 2022 exl Author. All Rights Reserved.
// 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 exl
import (
"fmt"
"reflect"
"strconv"
)
func setValue(srcValue, distValue reflect.Value) {
switch distValue.Kind() {
case reflect.String:
setStringValue(srcValue, distValue)
case reflect.Bool:
setBoolValue(srcValue, distValue)
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
setIntValue(srcValue, distValue)
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
setUintValue(srcValue, distValue)
case reflect.Float32, reflect.Float64:
setFloatValue(srcValue, distValue)
default:
if srcValue.Type() == distValue.Type() {
distValue.Set(srcValue)
}
}
}
func setStringValue(srcValue, distValue reflect.Value) {
switch srcValue.Kind() {
// Interface->String
default:
if srcValue.CanInterface() {
distValue.SetString(fmt.Sprintf("%v", srcValue.Interface()))
}
// String->String
case reflect.String:
distValue.SetString(srcValue.String())
}
}
func setBoolValue(srcValue, distValue reflect.Value) {
switch srcValue.Kind() {
// String->Bool
case reflect.String:
boolVal, _ := strconv.ParseBool(srcValue.String())
distValue.SetBool(boolVal)
// Bool->Bool
case reflect.Bool:
distValue.Set(srcValue)
}
}
// set int value
func setIntValue(srcValue, distValue reflect.Value) {
switch srcValue.Kind() {
// String->Int
case reflect.String:
floatVal, _ := strconv.ParseFloat(srcValue.String(), 64)
distValue.SetInt(int64(floatVal))
// Float->Int
case reflect.Float32, reflect.Float64:
distValue.SetInt(int64(srcValue.Float()))
// Uint->Int
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
distValue.SetInt(int64(srcValue.Uint()))
// Int->Int
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
distValue.SetInt(srcValue.Int())
}
}
// set uint value
func setUintValue(srcValue, distValue reflect.Value) {
switch srcValue.Kind() {
// String->Uint
case reflect.String:
floatVal, _ := strconv.ParseFloat(srcValue.String(), 64)
distValue.SetUint(uint64(floatVal))
// Float->Uint
case reflect.Float32, reflect.Float64:
distValue.SetUint(uint64(srcValue.Float()))
// Int->Uint
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
distValue.SetUint(uint64(srcValue.Int()))
// Uint->Uint
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
distValue.SetUint(srcValue.Uint())
}
}
// set float value
func setFloatValue(srcValue, distValue reflect.Value) {
switch srcValue.Kind() {
// String->Float
case reflect.String:
floatVal, _ := strconv.ParseFloat(srcValue.String(), 64)
distValue.SetFloat(floatVal)
// Int->Float
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
distValue.SetFloat(float64(srcValue.Int()))
// Uint->Float
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
distValue.SetFloat(float64(srcValue.Uint()))
// Float->Float
case reflect.Float32, reflect.Float64:
distValue.SetFloat(srcValue.Float())
}
}