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float_output.go
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/
float_output.go
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package filter
import (
"math"
"reflect"
)
// Result 获得过滤结果
func (floatType *FloatType) Result() (float64, error) {
return floatType.value, floatType.err
}
// Value 获得当前值
func (floatType *FloatType) Value() float64 {
return floatType.value
}
// Error 获得错误信息
func (floatType *FloatType) Error() error {
return floatType.err
}
// Set 使用反射赋值到变量
func (floatType *FloatType) Set(target interface{}, customError ...string) error {
if floatType.err != nil {
return floatType.err
}
targetValueOf, checkErr := setCheck(target)
if checkErr != nil {
floatType.err = wrapError(floatType.name, customError...)
return floatType.err
}
// 开始赋值
targetTypeOf := targetValueOf.Elem().Type().Kind()
switch targetTypeOf { //nolint:exhaustive
case reflect.Float64:
targetValueOf.Elem().SetFloat(floatType.value)
case reflect.Float32:
_, err := floatType.Float32()
if err != nil {
floatType.err = wrapError(floatType.name, customError...)
return floatType.err
}
targetValueOf.Elem().SetFloat(floatType.value)
default:
floatType.err = wrapError(floatType.name, customError...)
}
return floatType.err
}
// Float32 转为float32类型
func (floatType *FloatType) Float32(customError ...string) (value float32, err error) {
if floatType.err != nil {
return 0, floatType.err
}
if floatType.value < math.SmallestNonzeroFloat32 || floatType.value > math.MaxFloat32 {
floatType.err = wrapError(floatType.name, customError...)
return 0, floatType.err
}
return float32(floatType.value), nil
}
// DefaultFloat32 转为float32类型,出错则用默认值替代
func (floatType *FloatType) DefaultFloat32(def float32) float32 {
value, err := floatType.Float32()
if err != nil {
return def
}
return value
}
// Float64 转为float64类型
func (floatType *FloatType) Float64() (float64, error) {
return floatType.Result()
}
// DefaultFloat64 转为float64类型,出错则用默认值替代
func (floatType *FloatType) DefaultFloat64(def float64) float64 {
value, err := floatType.Result()
if err != nil {
return def
}
return value
}