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// Helper for converting SafeArray to array of objects.
package ole
import (
"unsafe"
)
type SafeArrayConversion struct {
Array *SafeArray
}
func (sac *SafeArrayConversion) ToStringArray() (strings []string) {
totalElements, _ := sac.TotalElements(0)
strings = make([]string, totalElements)
for i := int64(0); i < totalElements; i++ {
strings[int32(i)], _ = safeArrayGetElementString(sac.Array, i)
}
return
}
func (sac *SafeArrayConversion) ToByteArray() (bytes []byte) {
totalElements, _ := sac.TotalElements(0)
bytes = make([]byte, totalElements)
for i := int64(0); i < totalElements; i++ {
safeArrayGetElement(sac.Array, i, unsafe.Pointer(&bytes[int32(i)]))
}
return
}
func (sac *SafeArrayConversion) ToValueArray() (values []interface{}) {
totalElements, _ := sac.TotalElements(0)
values = make([]interface{}, totalElements)
vt, _ := safeArrayGetVartype(sac.Array)
for i := 0; i < int(totalElements); i++ {
switch VT(vt) {
case VT_BOOL:
var v bool
safeArrayGetElement(sac.Array, int64(i), unsafe.Pointer(&v))
values[i] = v
case VT_I1:
var v int8
safeArrayGetElement(sac.Array, int64(i), unsafe.Pointer(&v))
values[i] = v
case VT_I2:
var v int16
safeArrayGetElement(sac.Array, int64(i), unsafe.Pointer(&v))
values[i] = v
case VT_I4:
var v int32
safeArrayGetElement(sac.Array, int64(i), unsafe.Pointer(&v))
values[i] = v
case VT_I8:
var v int64
safeArrayGetElement(sac.Array, int64(i), unsafe.Pointer(&v))
values[i] = v
case VT_UI1:
var v uint8
safeArrayGetElement(sac.Array, int64(i), unsafe.Pointer(&v))
values[i] = v
case VT_UI2:
var v uint16
safeArrayGetElement(sac.Array, int64(i), unsafe.Pointer(&v))
values[i] = v
case VT_UI4:
var v uint32
safeArrayGetElement(sac.Array, int64(i), unsafe.Pointer(&v))
values[i] = v
case VT_UI8:
var v uint64
safeArrayGetElement(sac.Array, int64(i), unsafe.Pointer(&v))
values[i] = v
case VT_R4:
var v float32
safeArrayGetElement(sac.Array, int64(i), unsafe.Pointer(&v))
values[i] = v
case VT_R8:
var v float64
safeArrayGetElement(sac.Array, int64(i), unsafe.Pointer(&v))
values[i] = v
case VT_BSTR:
var v string
safeArrayGetElement(sac.Array, int64(i), unsafe.Pointer(&v))
values[i] = v
case VT_VARIANT:
var v VARIANT
safeArrayGetElement(sac.Array, int64(i), unsafe.Pointer(&v))
values[i] = v.Value()
default:
// TODO
}
}
return
}
func (sac *SafeArrayConversion) GetType() (varType uint16, err error) {
return safeArrayGetVartype(sac.Array)
}
func (sac *SafeArrayConversion) GetDimensions() (dimensions *uint32, err error) {
return safeArrayGetDim(sac.Array)
}
func (sac *SafeArrayConversion) GetSize() (length *uint32, err error) {
return safeArrayGetElementSize(sac.Array)
}
func (sac *SafeArrayConversion) TotalElements(index uint32) (totalElements int64, err error) {
if index < 1 {
index = 1
}
// Get array bounds
var LowerBounds int64
var UpperBounds int64
LowerBounds, err = safeArrayGetLBound(sac.Array, index)
if err != nil {
return
}
UpperBounds, err = safeArrayGetUBound(sac.Array, index)
if err != nil {
return
}
totalElements = UpperBounds - LowerBounds + 1
return
}
// Release Safe Array memory
func (sac *SafeArrayConversion) Release() {
safeArrayDestroy(sac.Array)
}
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