diff options
Diffstat (limited to 'vendor/github.com/go-ole/go-ole/safearrayconversion.go')
-rw-r--r-- | vendor/github.com/go-ole/go-ole/safearrayconversion.go | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/vendor/github.com/go-ole/go-ole/safearrayconversion.go b/vendor/github.com/go-ole/go-ole/safearrayconversion.go new file mode 100644 index 000000000..ffeb2b97b --- /dev/null +++ b/vendor/github.com/go-ole/go-ole/safearrayconversion.go @@ -0,0 +1,140 @@ +// 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) +} |