| package flatbuffers |
| |
| // FlatBuffer is the interface that represents a flatbuffer. |
| type FlatBuffer interface { |
| Table() Table |
| Init(buf []byte, i UOffsetT) |
| } |
| |
| // GetRootAs is a generic helper to initialize a FlatBuffer with the provided buffer bytes and its data offset. |
| func GetRootAs(buf []byte, offset UOffsetT, fb FlatBuffer) { |
| n := GetUOffsetT(buf[offset:]) |
| fb.Init(buf, n+offset) |
| } |
| |
| // GetSizePrefixedRootAs is a generic helper to initialize a FlatBuffer with the provided size-prefixed buffer |
| // bytes and its data offset |
| func GetSizePrefixedRootAs(buf []byte, offset UOffsetT, fb FlatBuffer) { |
| n := GetUOffsetT(buf[offset+sizePrefixLength:]) |
| fb.Init(buf, n+offset+sizePrefixLength) |
| } |
| |
| // GetSizePrefix reads the size from a size-prefixed flatbuffer |
| func GetSizePrefix(buf []byte, offset UOffsetT) uint32 { |
| return GetUint32(buf[offset:]) |
| } |
| |
| // GetIndirectOffset retrives the relative offset in the provided buffer stored at `offset`. |
| func GetIndirectOffset(buf []byte, offset UOffsetT) UOffsetT { |
| return offset + GetUOffsetT(buf[offset:]) |
| } |
| |
| // GetBufferIdentifier returns the file identifier as string |
| func GetBufferIdentifier(buf []byte) string { |
| return string(buf[SizeUOffsetT:][:fileIdentifierLength]) |
| } |
| |
| // GetBufferIdentifier returns the file identifier as string for a size-prefixed buffer |
| func GetSizePrefixedBufferIdentifier(buf []byte) string { |
| return string(buf[SizeUOffsetT+sizePrefixLength:][:fileIdentifierLength]) |
| } |
| |
| // BufferHasIdentifier checks if the identifier in a buffer has the expected value |
| func BufferHasIdentifier(buf []byte, identifier string) bool { |
| return GetBufferIdentifier(buf) == identifier |
| } |
| |
| // BufferHasIdentifier checks if the identifier in a buffer has the expected value for a size-prefixed buffer |
| func SizePrefixedBufferHasIdentifier(buf []byte, identifier string) bool { |
| return GetSizePrefixedBufferIdentifier(buf) == identifier |
| } |