Golang C.CFISH_Vec_Fetch函数代码示例

func (h *HitsIMP) Next(hit interface{}) bool {
	self := (*C.lucy_Hits)(clownfish.Unwrap(h, "h"))
	ivars := C.lucy_Hits_IVARS(self)
	matchDoc := (*C.lucy_MatchDoc)(unsafe.Pointer(
		C.CFISH_Vec_Fetch(ivars.match_docs, C.size_t(ivars.offset))))
	ivars.offset += 1

	if matchDoc == nil {
		// Bail if there aren't any more *captured* hits.  (There may be
		// more total hits.)
		return false
	} else {
		// Lazily fetch HitDoc, set score.
		searcher := clownfish.WRAPAny(unsafe.Pointer(C.cfish_incref(
			unsafe.Pointer(ivars.searcher)))).(Searcher)
		docID := int32(C.LUCY_MatchDoc_Get_Doc_ID(matchDoc))
		err := searcher.ReadDoc(docID, hit)
		if err != nil {
			h.err = err
			return false
		}
		if ss, ok := hit.(setScorer); ok {
			ss.SetScore(float32(C.LUCY_MatchDoc_Get_Score(matchDoc)))
		}
		return true
	}
}

func fetchEntry(ivars *C.lucy_InverterIVARS, fieldGo string) *C.lucy_InverterEntry {
	field := (*C.cfish_String)(clownfish.GoToClownfish(fieldGo,
		unsafe.Pointer(C.CFISH_STRING), false))
	defer C.cfish_decref(unsafe.Pointer(field))
	schema := ivars.schema
	fieldNum := C.LUCY_Seg_Field_Num(ivars.segment, field)
	if fieldNum == 0 {
		// This field seems not to be in the segment yet.  Try to find it in
		// the Schema.
		if C.LUCY_Schema_Fetch_Type(schema, field) != nil {
			// The field is in the Schema.  Get a field num from the Segment.
			fieldNum = C.LUCY_Seg_Add_Field(ivars.segment, field)
		} else {
			// We've truly failed to find the field.  The user must
			// not have spec'd it.
			fieldGo := clownfish.CFStringToGo(unsafe.Pointer(field))
			err := clownfish.NewErr("Unknown field name: '" + fieldGo + "'")
			panic(err)
		}
	}
	entry := C.CFISH_Vec_Fetch(ivars.entry_pool, C.size_t(fieldNum))
	if entry == nil {
		newEntry := C.lucy_InvEntry_new(schema, field, fieldNum)
		C.CFISH_Vec_Store(ivars.entry_pool, C.size_t(fieldNum),
			(*C.cfish_Obj)(unsafe.Pointer(entry)))
		return newEntry
	}
	return (*C.lucy_InverterEntry)(unsafe.Pointer(entry))
}

func (spec *SortSpecIMP) GetRules() []SortRule {
	self := (*C.lucy_SortSpec)(clownfish.Unwrap(spec, "spec"))
	vec := C.LUCY_SortSpec_Get_Rules(self)
	length := int(C.CFISH_Vec_Get_Size(vec))
	slice := make([]SortRule, length)
	for i := 0; i < length; i++ {
		elem := C.cfish_incref(unsafe.Pointer(C.CFISH_Vec_Fetch(vec, C.size_t(i))))
		slice[i] = WRAPSortRule(unsafe.Pointer(elem))
	}
	return slice
}

func (td *TopDocsIMP) GetMatchDocs() []MatchDoc {
	self := (*C.lucy_TopDocs)(clownfish.Unwrap(td, "td"))
	vec := C.LUCY_TopDocs_Get_Match_Docs(self)
	length := int(C.CFISH_Vec_Get_Size(vec))
	slice := make([]MatchDoc, length)
	for i := 0; i < length; i++ {
		elem := C.cfish_incref(unsafe.Pointer(C.CFISH_Vec_Fetch(vec, C.size_t(i))))
		slice[i] = WRAPMatchDoc(unsafe.Pointer(elem))
	}
	return slice
}

func (h *HashIMP) Keys() []string {
	self := (*C.cfish_Hash)(Unwrap(h, "h"))
	keysCF := C.CFISH_Hash_Keys(self)
	numKeys := C.CFISH_Vec_Get_Size(keysCF)
	keys := make([]string, 0, int(numKeys))
	for i := C.size_t(0); i < numKeys; i++ {
		keys = append(keys, CFStringToGo(unsafe.Pointer(C.CFISH_Vec_Fetch(keysCF, i))))
	}
	C.cfish_decref(unsafe.Pointer(keysCF))
	return keys
}

func (p *PolyAnalyzerIMP) GetAnalyzers() []Analyzer {
	self := (*C.lucy_PolyAnalyzer)(clownfish.Unwrap(p, "p"))
	retvalCF := C.LUCY_PolyAnalyzer_Get_Analyzers(self)
	size := C.CFISH_Vec_Get_Size(retvalCF)
	retval := make([]Analyzer, int(size))
	for i := 0; i < int(size); i++ {
		child := unsafe.Pointer(C.CFISH_Vec_Fetch(retvalCF, C.size_t(i)))
		retval[i] = clownfish.WRAPAny(unsafe.Pointer(C.cfish_incref(child))).(Analyzer)
	}
	return retval
}

// Turn a Vector of Clownfish Strings into a slice of Go string.  NULL
// elements in the Vector are not allowed.
func vecToStringSlice(v *C.cfish_Vector) []string {
	if v == nil {
		return nil
	}
	length := int(C.CFISH_Vec_Get_Size(v))
	slice := make([]string, length)
	for i := 0; i < length; i++ {
		slice[i] = clownfish.CFStringToGo(unsafe.Pointer(C.CFISH_Vec_Fetch(v, C.size_t(i))))
	}
	return slice
}

func (c *ClassIMP) GetMethods() []Method {
	self := (*C.cfish_Class)(Unwrap(c, "c"))
	methsVec := C.CFISH_Class_Get_Methods(self)
	size := C.CFISH_Vec_Get_Size(methsVec)
	meths := make([]Method, 0, int(size))
	for i := C.size_t(0); i < size; i++ {
		meths = append(meths, WRAPMethod(unsafe.Pointer(C.CFISH_Vec_Fetch(methsVec, i))))
	}
	C.cfish_decref(unsafe.Pointer(methsVec))
	return meths
}

func vecToSpanSlice(v *C.cfish_Vector) []Span {
	if v == nil {
		return nil
	}
	length := int(C.CFISH_Vec_Get_Size(v))
	slice := make([]Span, length)
	for i := 0; i < length; i++ {
		elem := C.CFISH_Vec_Fetch(v, C.size_t(i))
		slice[i] = clownfish.ToGo(unsafe.Pointer(elem)).(Span)
	}
	return slice
}

func (sc *SortCollectorIMP) PopMatchDocs() []MatchDoc {
	self := (*C.lucy_SortCollector)(clownfish.Unwrap(sc, "sc"))
	matchDocsC := C.LUCY_SortColl_Pop_Match_Docs(self)
	defer C.cfish_decref(unsafe.Pointer(matchDocsC))
	length := int(C.CFISH_Vec_Get_Size(matchDocsC))
	slice := make([]MatchDoc, length)
	for i := 0; i < length; i++ {
		elem := C.cfish_incref(unsafe.Pointer(C.CFISH_Vec_Fetch(matchDocsC, C.size_t(i))))
		slice[i] = WRAPMatchDoc(unsafe.Pointer(elem))
	}
	return slice
}

func (d *DataReaderIMP) GetSegments() []Segment {
	self := (*C.lucy_DataReader)(clownfish.Unwrap(d, "d"))
	retvalCF := C.LUCY_DataReader_Get_Segments(self)
	if retvalCF == nil {
		return nil
	}
	size := C.CFISH_Vec_Get_Size(retvalCF)
	retval := make([]Segment, int(size))
	for i := 0; i < int(size); i++ {
		elem := unsafe.Pointer(C.CFISH_Vec_Fetch(retvalCF, C.size_t(i)))
		retval[i] = clownfish.ToGo(unsafe.Pointer(C.cfish_incref(elem))).(Segment)
	}
	return retval
}

func (r *IndexReaderIMP) SegReaders() []SegReader {
	self := (*C.lucy_IndexReader)(clownfish.Unwrap(r, "r"))
	retvalCF := C.LUCY_IxReader_Seg_Readers(self)
	defer C.cfish_decref(unsafe.Pointer(retvalCF))
	if retvalCF == nil {
		return nil
	}
	size := C.CFISH_Vec_Get_Size(retvalCF)
	retval := make([]SegReader, int(size))
	for i := 0; i < int(size); i++ {
		elem := unsafe.Pointer(C.CFISH_Vec_Fetch(retvalCF, C.size_t(i)))
		retval[i] = clownfish.ToGo(unsafe.Pointer(C.cfish_incref(elem))).(SegReader)
	}
	return retval
}

func readDocPolyDR(pdr *C.lucy_PolyDocReader, docID int32, doc interface{}) error {
	ivars := C.lucy_PolyDocReader_IVARS(pdr)
	segTick := C.lucy_PolyReader_sub_tick(ivars.offsets, C.int32_t(docID))
	offset := C.LUCY_I32Arr_Get(ivars.offsets, C.size_t(segTick))
	defDocReader := (*C.lucy_DefaultDocReader)(C.CFISH_Vec_Fetch(ivars.readers, C.size_t(segTick)))
	if defDocReader == nil {
		return clownfish.NewErr(fmt.Sprintf("Invalid docID: %d", docID))
	}
	if !C.cfish_Obj_is_a((*C.cfish_Obj)(unsafe.Pointer(defDocReader)), C.LUCY_DEFAULTDOCREADER) {
		panic(clownfish.NewErr("Unexpected type")) // sanity check
	}
	adjustedDocID := docID - int32(offset)
	err := doReadDocData(defDocReader, adjustedDocID, doc)
	if docDoc, ok := doc.(Doc); ok {
		docDoc.SetDocID(docID)
	}
	return err
}

func (im *IndexManagerIMP) Recycle(reader PolyReader, delWriter DeletionsWriter,
	cutoff int64, optimize bool) (retval []SegReader, err error) {
	err = clownfish.TrapErr(func() {
		self := (*C.lucy_IndexManager)(clownfish.Unwrap(im, "im"))
		readerC := (*C.lucy_PolyReader)(clownfish.Unwrap(reader, "reader"))
		delWriterC := (*C.lucy_DeletionsWriter)(clownfish.Unwrap(delWriter, "delWriter"))
		vec := C.LUCY_IxManager_Recycle(self, readerC, delWriterC,
			C.int64_t(cutoff), C.bool(optimize))
		if vec != nil {
			defer C.cfish_decref(unsafe.Pointer(vec))
			size := int(C.CFISH_Vec_Get_Size(vec))
			retval = make([]SegReader, size)
			for i := 0; i < size; i++ {
				elem := C.CFISH_Vec_Fetch(vec, C.size_t(i))
				retval[i] = WRAPSegReader(unsafe.Pointer(C.cfish_incref(unsafe.Pointer(elem))))
			}
		}
	})
	return retval, err
}

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
}