forked from BigfootDev/flatbuffers
08cf50c54a
* initial changes to support size prefixed buffers in Java * add slice equivalent to CSharp ByteBuffer * resolve TODO for slicing in CSharp code generation * add newly generated Java and CSharp test sources * fix typo in comment * add FinishSizePrefixed methods to CSharp FlatBufferBuilder as well * add option to allow writing the prefix as well * generate size-prefixed monster binary as well * extend JavaTest to test the size prefixed binary as well * use constants for size prefix length * fuse common code for getRootAs and getSizePrefixedRootAs * pulled file identifier out of if * add FinishSizePrefixed, GetSizePrefixedRootAs support for Python * Revert "extend JavaTest to test the size prefixed binary as well" This reverts commit68be4420dd. * Revert "generate size-prefixed monster binary as well" This reverts commit2939516fdf. * fix ByteBuffer.cs Slice() method; add proper CSharp and Java tests * fix unused parameter * increment version number * pulled out generated methods into separate utility class * pulled out generated methods into separate utility class for Python * fix indentation * remove unnecessary comment * fix newline and copyright * add ByteBufferUtil to csproj compilation * hide ByteBuffer's internal data; track offset into parent's array * test unsafe versions as well; compile and run in debug mode * clarify help text for size prefix * move ByteBuffer slicing behavior to subclass * fix protection levels * add size prefix support for text generation * add ByteBufferSlice to csproj compilation * revert size prefix handling for nested buffers * use duplicate instead of slice for removing size prefix * remove slice subclass and use duplicate for removing size prefix * remove slice specific tests * remove superfluous command line option
40 lines
1.2 KiB
C#
40 lines
1.2 KiB
C#
/*
|
|
* Copyright 2017 Google Inc. All rights reserved.
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
using System;
|
|
|
|
namespace FlatBuffers
|
|
{
|
|
/// <summary>
|
|
/// Class that collects utility functions around `ByteBuffer`.
|
|
/// </summary>
|
|
public class ByteBufferUtil
|
|
{
|
|
// Extract the size prefix from a `ByteBuffer`.
|
|
public static int GetSizePrefix(ByteBuffer bb) {
|
|
return bb.GetInt(bb.Position);
|
|
}
|
|
|
|
// Create a duplicate of a size-prefixed `ByteBuffer` that has its position
|
|
// advanced just past the size prefix.
|
|
public static ByteBuffer RemoveSizePrefix(ByteBuffer bb) {
|
|
ByteBuffer s = bb.Duplicate();
|
|
s.Position += FlatBufferConstants.SizePrefixLength;
|
|
return s;
|
|
}
|
|
}
|
|
}
|