xref: /aosp_15_r20/external/flatbuffers/go/lib.go (revision 890232f25432b36107d06881e0a25aaa6b473652)
1package flatbuffers
2
3// FlatBuffer is the interface that represents a flatbuffer.
4type FlatBuffer interface {
5	Table() Table
6	Init(buf []byte, i UOffsetT)
7}
8
9// GetRootAs is a generic helper to initialize a FlatBuffer with the provided buffer bytes and its data offset.
10func GetRootAs(buf []byte, offset UOffsetT, fb FlatBuffer) {
11	n := GetUOffsetT(buf[offset:])
12	fb.Init(buf, n+offset)
13}
14
15// GetSizePrefixedRootAs is a generic helper to initialize a FlatBuffer with the provided size-prefixed buffer
16// bytes and its data offset
17func GetSizePrefixedRootAs(buf []byte, offset UOffsetT, fb FlatBuffer) {
18	n := GetUOffsetT(buf[offset+sizePrefixLength:])
19	fb.Init(buf, n+offset+sizePrefixLength)
20}
21
22// GetSizePrefix reads the size from a size-prefixed flatbuffer
23func GetSizePrefix(buf []byte, offset UOffsetT) uint32 {
24	return GetUint32(buf[offset:])
25}
26