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type_conversions.go
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type_conversions.go
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package modbus
import "fmt"
func determineUntypedConverter(outType string) (fieldConverterFunc, error) {
switch outType {
case "", "UINT16":
return func(b []byte) interface{} {
return uint16(b[0])
}, nil
case "BOOL":
return func(b []byte) interface{} {
return b[0] != 0
}, nil
}
return nil, fmt.Errorf("invalid output data-type: %s", outType)
}
func determineConverter(inType, byteOrder, outType string, scale float64) (fieldConverterFunc, error) {
if scale != 0.0 {
return determineConverterScale(inType, byteOrder, outType, scale)
}
return determineConverterNoScale(inType, byteOrder, outType)
}
func determineConverterScale(inType, byteOrder, outType string, scale float64) (fieldConverterFunc, error) {
switch inType {
case "INT8L":
return determineConverterI8LScale(outType, byteOrder, scale)
case "INT8H":
return determineConverterI8HScale(outType, byteOrder, scale)
case "UINT8L":
return determineConverterU8LScale(outType, byteOrder, scale)
case "UINT8H":
return determineConverterU8HScale(outType, byteOrder, scale)
case "INT16":
return determineConverterI16Scale(outType, byteOrder, scale)
case "UINT16":
return determineConverterU16Scale(outType, byteOrder, scale)
case "INT32":
return determineConverterI32Scale(outType, byteOrder, scale)
case "UINT32":
return determineConverterU32Scale(outType, byteOrder, scale)
case "INT64":
return determineConverterI64Scale(outType, byteOrder, scale)
case "UINT64":
return determineConverterU64Scale(outType, byteOrder, scale)
case "FLOAT16":
return determineConverterF16Scale(outType, byteOrder, scale)
case "FLOAT32":
return determineConverterF32Scale(outType, byteOrder, scale)
case "FLOAT64":
return determineConverterF64Scale(outType, byteOrder, scale)
}
return nil, fmt.Errorf("invalid input data-type: %s", inType)
}
func determineConverterNoScale(inType, byteOrder, outType string) (fieldConverterFunc, error) {
switch inType {
case "INT8L":
return determineConverterI8L(outType, byteOrder)
case "INT8H":
return determineConverterI8H(outType, byteOrder)
case "UINT8L":
return determineConverterU8L(outType, byteOrder)
case "UINT8H":
return determineConverterU8H(outType, byteOrder)
case "INT16":
return determineConverterI16(outType, byteOrder)
case "UINT16":
return determineConverterU16(outType, byteOrder)
case "INT32":
return determineConverterI32(outType, byteOrder)
case "UINT32":
return determineConverterU32(outType, byteOrder)
case "INT64":
return determineConverterI64(outType, byteOrder)
case "UINT64":
return determineConverterU64(outType, byteOrder)
case "FLOAT16":
return determineConverterF16(outType, byteOrder)
case "FLOAT32":
return determineConverterF32(outType, byteOrder)
case "FLOAT64":
return determineConverterF64(outType, byteOrder)
}
return nil, fmt.Errorf("invalid input data-type: %s", inType)
}