Exemple #1
0
func ToGo(ptr unsafe.Pointer) interface{} {
	if ptr == nil {
		return nil
	}
	class := C.cfish_Obj_get_class((*C.cfish_Obj)(ptr))
	if class == C.CFISH_STRING {
		return CFStringToGo(ptr)
	} else if class == C.CFISH_BLOB {
		return BlobToGo(ptr)
	} else if class == C.CFISH_VECTOR {
		return VectorToGo(ptr)
	} else if class == C.CFISH_HASH {
		return HashToGo(ptr)
	} else if class == C.CFISH_BOOLEAN {
		if ptr == unsafe.Pointer(C.CFISH_TRUE) {
			return true
		} else {
			return false
		}
	} else if class == C.CFISH_INTEGER {
		val := C.CFISH_Int_Get_Value((*C.cfish_Integer)(ptr))
		return int64(val)
	} else if class == C.CFISH_FLOAT {
		val := C.CFISH_Float_Get_Value((*C.cfish_Float)(ptr))
		return float64(val)
	} else {
		// Don't convert to a native Go type, but wrap in a Go struct.
		return WRAPAny(unsafe.Pointer(C.cfish_incref(unsafe.Pointer(ptr))))
	}
}
Exemple #2
0
func WRAPAny(ptr unsafe.Pointer) Obj {
	if ptr == nil {
		return nil
	}
	class := C.cfish_Obj_get_class((*C.cfish_Obj)(ptr))
	wrapFunc := (*wrapReg)[unsafe.Pointer(class)]
	if wrapFunc == nil {
		className := CFStringToGo(unsafe.Pointer(C.CFISH_Class_Get_Name((*C.cfish_Class)(class))))
		panic(fmt.Sprintf("Failed to find WRAP function for %s", className))
	}
	return wrapFunc(ptr)
}
Exemple #3
0
func BlobToGo(ptr unsafe.Pointer) []byte {
	blob := (*C.cfish_Blob)(ptr)
	if blob == nil {
		return nil
	}
	class := C.cfish_Obj_get_class((*C.cfish_Obj)(ptr))
	if class != C.CFISH_BLOB {
		mess := "Not a Blob: " + StringToGo(unsafe.Pointer(C.CFISH_Class_Get_Name(class)))
		panic(NewErr(mess))
	}
	data := C.CFISH_Blob_Get_Buf(blob)
	size := C.CFISH_Blob_Get_Size(blob)
	if size > C.size_t(C.INT_MAX) {
		panic(fmt.Sprintf("Overflow: %d > %d", size, C.INT_MAX))
	}
	return C.GoBytes(unsafe.Pointer(data), C.int(size))
}
Exemple #4
0
// Read data into the supplied doc.
func (s *SearcherIMP) ReadDoc(docID int32, doc interface{}) error {
	self := (*C.lucy_Searcher)(clownfish.Unwrap(s, "s"))
	class := C.cfish_Obj_get_class((*C.cfish_Obj)(unsafe.Pointer(self)))
	if class == C.LUCY_INDEXSEARCHER {
		ixReader := C.LUCY_IxSearcher_Get_Reader((*C.lucy_IndexSearcher)(unsafe.Pointer(self)))
		cfStr := (*C.cfish_String)(clownfish.GoToClownfish("Lucy::Index::DocReader", unsafe.Pointer(C.CFISH_STRING), false))
		defer C.cfish_decref(unsafe.Pointer(cfStr))
		docReader := C.LUCY_IxReader_Fetch(ixReader, cfStr)
		if docReader == nil {
			return clownfish.NewErr("No DocReader available")
		}
		docReaderGo := clownfish.WRAPAny(unsafe.Pointer(C.cfish_incref(unsafe.Pointer(docReader)))).(DocReader)
		return docReaderGo.ReadDoc(docID, doc)
	} else {
		return clownfish.NewErr("Support for ReadDoc not implemented")
	}
}
Exemple #5
0
func VectorToGo(ptr unsafe.Pointer) []interface{} {
	vec := (*C.cfish_Vector)(ptr)
	if vec == nil {
		return nil
	}
	class := C.cfish_Obj_get_class((*C.cfish_Obj)(ptr))
	if class != C.CFISH_VECTOR {
		mess := "Not a Vector: " + StringToGo(unsafe.Pointer(C.CFISH_Class_Get_Name(class)))
		panic(NewErr(mess))
	}
	size := C.CFISH_Vec_Get_Size(vec)
	if size > C.size_t(maxInt) {
		panic(fmt.Sprintf("Overflow: %d > %d", size, maxInt))
	}
	slice := make([]interface{}, int(size))
	for i := 0; i < int(size); i++ {
		slice[i] = ToGo(unsafe.Pointer(C.CFISH_Vec_Fetch(vec, C.size_t(i))))
	}
	return slice
}
Exemple #6
0
func HashToGo(ptr unsafe.Pointer) map[string]interface{} {
	hash := (*C.cfish_Hash)(ptr)
	if hash == nil {
		return nil
	}
	class := C.cfish_Obj_get_class((*C.cfish_Obj)(ptr))
	if class != C.CFISH_HASH {
		mess := "Not a Hash: " + StringToGo(unsafe.Pointer(C.CFISH_Class_Get_Name(class)))
		panic(NewErr(mess))
	}
	size := C.CFISH_Hash_Get_Size(hash)
	m := make(map[string]interface{}, int(size))
	iter := C.cfish_HashIter_new(hash)
	defer C.cfish_dec_refcount(unsafe.Pointer(iter))
	for C.CFISH_HashIter_Next(iter) {
		key := C.CFISH_HashIter_Get_Key(iter)
		val := C.CFISH_HashIter_Get_Value(iter)
		m[StringToGo(unsafe.Pointer(key))] = ToGo(unsafe.Pointer(val))
	}
	return m
}
Exemple #7
0
func GetClass(o Obj) Class {
	objCF := (*C.cfish_Obj)(Unwrap(o, "o"))
	classCF := C.cfish_Obj_get_class(objCF)
	return WRAPClass(unsafe.Pointer(classCF))
}