Beego/vendor/github.com/Knetic/govaluate/sanitizedParameters.go

72 lines
1.2 KiB
Go

package govaluate
// sanitizedParameters is a wrapper for Parameters that does sanitization as
// parameters are accessed.
type sanitizedParameters struct {
orig Parameters
}
func (p sanitizedParameters) Get(key string) (interface{}, error) {
value, err := p.orig.Get(key)
if err != nil {
return nil, err
}
// should be converted to fixed point?
if isFixedPoint(value) {
return castFixedPoint(value), nil
}
return value, nil
}
func isFixedPoint(value interface{}) bool {
switch value.(type) {
case uint8:
return true
case uint16:
return true
case uint32:
return true
case uint64:
return true
case int8:
return true
case int16:
return true
case int32:
return true
case int64:
return true
case int:
return true
}
return false
}
func castFixedPoint(value interface{}) float64 {
switch value.(type) {
case uint8:
return float64(value.(uint8))
case uint16:
return float64(value.(uint16))
case uint32:
return float64(value.(uint32))
case uint64:
return float64(value.(uint64))
case int8:
return float64(value.(int8))
case int16:
return float64(value.(int16))
case int32:
return float64(value.(int32))
case int64:
return float64(value.(int64))
case int:
return float64(value.(int))
}
return 0.0
}