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Avoid unsafe when sizing types

This commit is contained in:
Matt Mastracci 2016-02-29 13:04:12 -07:00
parent a8d2eeee34
commit 36daedf35f
1 changed files with 20 additions and 19 deletions
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39
go/unsafe.go → go/sizes.go
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@ -1,47 +1,48 @@
package flatbuffers package flatbuffers
import "unsafe" const (
var (
// See http://golang.org/ref/spec#Numeric_types // See http://golang.org/ref/spec#Numeric_types
// SizeUint8 is the byte size of a uint8. // SizeUint8 is the byte size of a uint8.
SizeUint8 = int(unsafe.Sizeof(uint8(0))) SizeUint8 = 1
// SizeUint16 is the byte size of a uint16. // SizeUint16 is the byte size of a uint16.
SizeUint16 = int(unsafe.Sizeof(uint16(0))) SizeUint16 = 2
// SizeUint32 is the byte size of a uint32. // SizeUint32 is the byte size of a uint32.
SizeUint32 = int(unsafe.Sizeof(uint32(0))) SizeUint32 = 4
// SizeUint64 is the byte size of a uint64. // SizeUint64 is the byte size of a uint64.
SizeUint64 = int(unsafe.Sizeof(uint64(0))) SizeUint64 = 8
// SizeInt8 is the byte size of a int8. // SizeInt8 is the byte size of a int8.
SizeInt8 = int(unsafe.Sizeof(int8(0))) SizeInt8 = 1
// SizeInt16 is the byte size of a int16. // SizeInt16 is the byte size of a int16.
SizeInt16 = int(unsafe.Sizeof(int16(0))) SizeInt16 = 2
// SizeInt32 is the byte size of a int32. // SizeInt32 is the byte size of a int32.
SizeInt32 = int(unsafe.Sizeof(int32(0))) SizeInt32 = 4
// SizeInt64 is the byte size of a int64. // SizeInt64 is the byte size of a int64.
SizeInt64 = int(unsafe.Sizeof(int64(0))) SizeInt64 = 8
// SizeFloat32 is the byte size of a float32. // SizeFloat32 is the byte size of a float32.
SizeFloat32 = int(unsafe.Sizeof(float32(0))) SizeFloat32 = 4
// SizeFloat64 is the byte size of a float64. // SizeFloat64 is the byte size of a float64.
SizeFloat64 = int(unsafe.Sizeof(float64(0))) SizeFloat64 = 8
// SizeByte is the byte size of a byte. // SizeByte is the byte size of a byte.
// The `byte` type is aliased (by Go definition) to uint8. // The `byte` type is aliased (by Go definition) to uint8.
SizeByte = SizeUint8 SizeByte = 1
// SizeBool is the byte size of a bool. // SizeBool is the byte size of a bool.
// The `bool` type is aliased (by flatbuffers convention) to uint8. // The `bool` type is aliased (by flatbuffers convention) to uint8.
SizeBool = SizeUint8 SizeBool = 1
// SizeSOffsetT is the byte size of an SOffsetT. // SizeSOffsetT is the byte size of an SOffsetT.
SizeSOffsetT = int(unsafe.Sizeof(SOffsetT(0))) // The `SOffsetT` type is aliased (by flatbuffers convention) to int32.
SizeSOffsetT = 4
// SizeUOffsetT is the byte size of an UOffsetT. // SizeUOffsetT is the byte size of an UOffsetT.
SizeUOffsetT = int(unsafe.Sizeof(UOffsetT(0))) // The `UOffsetT` type is aliased (by flatbuffers convention) to uint32.
SizeUOffsetT = 4
// SizeVOffsetT is the byte size of an VOffsetT. // SizeVOffsetT is the byte size of an VOffsetT.
SizeVOffsetT = int(unsafe.Sizeof(VOffsetT(0))) // The `VOffsetT` type is aliased (by flatbuffers convention) to uint16.
SizeVOffsetT = 2
) )
// byteSliceToString converts a []byte to string without a heap allocation. // byteSliceToString converts a []byte to string without a heap allocation.