diff options
Diffstat (limited to 'csharp/src/ProtocolBuffers/CodedOutputStream.ComputeSize.cs')
| -rw-r--r-- | csharp/src/ProtocolBuffers/CodedOutputStream.ComputeSize.cs | 653 |
1 files changed, 653 insertions, 0 deletions
diff --git a/csharp/src/ProtocolBuffers/CodedOutputStream.ComputeSize.cs b/csharp/src/ProtocolBuffers/CodedOutputStream.ComputeSize.cs new file mode 100644 index 00000000..ca6662a4 --- /dev/null +++ b/csharp/src/ProtocolBuffers/CodedOutputStream.ComputeSize.cs @@ -0,0 +1,653 @@ +#region Copyright notice and license
+
+// Protocol Buffers - Google's data interchange format
+// Copyright 2008 Google Inc. All rights reserved.
+// http://github.com/jskeet/dotnet-protobufs/
+// Original C++/Java/Python code:
+// http://code.google.com/p/protobuf/
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+// * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+// * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+// * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#endregion
+
+using System;
+using System.Globalization;
+using System.Text;
+using Google.ProtocolBuffers.Descriptors;
+
+namespace Google.ProtocolBuffers
+{
+ // This part of CodedOutputStream provides all the static entry points that are used
+ // by generated code and internally to compute the size of messages prior to being
+ // written to an instance of CodedOutputStream.
+ public sealed partial class CodedOutputStream
+ {
+ private const int LittleEndian64Size = 8;
+ private const int LittleEndian32Size = 4;
+
+ /// <summary>
+ /// Compute the number of bytes that would be needed to encode a
+ /// double field, including the tag.
+ /// </summary>
+ public static int ComputeDoubleSize(int fieldNumber, double value)
+ {
+ return ComputeTagSize(fieldNumber) + LittleEndian64Size;
+ }
+
+ /// <summary>
+ /// Compute the number of bytes that would be needed to encode a
+ /// float field, including the tag.
+ /// </summary>
+ public static int ComputeFloatSize(int fieldNumber, float value)
+ {
+ return ComputeTagSize(fieldNumber) + LittleEndian32Size;
+ }
+
+ /// <summary>
+ /// Compute the number of bytes that would be needed to encode a
+ /// uint64 field, including the tag.
+ /// </summary>
+ [CLSCompliant(false)]
+ public static int ComputeUInt64Size(int fieldNumber, ulong value)
+ {
+ return ComputeTagSize(fieldNumber) + ComputeRawVarint64Size(value);
+ }
+
+ /// <summary>
+ /// Compute the number of bytes that would be needed to encode an
+ /// int64 field, including the tag.
+ /// </summary>
+ public static int ComputeInt64Size(int fieldNumber, long value)
+ {
+ return ComputeTagSize(fieldNumber) + ComputeRawVarint64Size((ulong) value);
+ }
+
+ /// <summary>
+ /// Compute the number of bytes that would be needed to encode an
+ /// int32 field, including the tag.
+ /// </summary>
+ public static int ComputeInt32Size(int fieldNumber, int value)
+ {
+ if (value >= 0)
+ {
+ return ComputeTagSize(fieldNumber) + ComputeRawVarint32Size((uint) value);
+ }
+ else
+ {
+ // Must sign-extend.
+ return ComputeTagSize(fieldNumber) + 10;
+ }
+ }
+
+ /// <summary>
+ /// Compute the number of bytes that would be needed to encode a
+ /// fixed64 field, including the tag.
+ /// </summary>
+ [CLSCompliant(false)]
+ public static int ComputeFixed64Size(int fieldNumber, ulong value)
+ {
+ return ComputeTagSize(fieldNumber) + LittleEndian64Size;
+ }
+
+ /// <summary>
+ /// Compute the number of bytes that would be needed to encode a
+ /// fixed32 field, including the tag.
+ /// </summary>
+ [CLSCompliant(false)]
+ public static int ComputeFixed32Size(int fieldNumber, uint value)
+ {
+ return ComputeTagSize(fieldNumber) + LittleEndian32Size;
+ }
+
+ /// <summary>
+ /// Compute the number of bytes that would be needed to encode a
+ /// bool field, including the tag.
+ /// </summary>
+ public static int ComputeBoolSize(int fieldNumber, bool value)
+ {
+ return ComputeTagSize(fieldNumber) + 1;
+ }
+
+ /// <summary>
+ /// Compute the number of bytes that would be needed to encode a
+ /// string field, including the tag.
+ /// </summary>
+ public static int ComputeStringSize(int fieldNumber, String value)
+ {
+ int byteArraySize = Encoding.UTF8.GetByteCount(value);
+ return ComputeTagSize(fieldNumber) +
+ ComputeRawVarint32Size((uint) byteArraySize) +
+ byteArraySize;
+ }
+
+ /// <summary>
+ /// Compute the number of bytes that would be needed to encode a
+ /// group field, including the tag.
+ /// </summary>
+ public static int ComputeGroupSize(int fieldNumber, IMessageLite value)
+ {
+ return ComputeTagSize(fieldNumber)*2 + value.SerializedSize;
+ }
+
+ /// <summary>
+ /// Compute the number of bytes that would be needed to encode a
+ /// group field represented by an UnknownFieldSet, including the tag.
+ /// </summary>
+ [Obsolete]
+ public static int ComputeUnknownGroupSize(int fieldNumber,
+ IMessageLite value)
+ {
+ return ComputeTagSize(fieldNumber)*2 + value.SerializedSize;
+ }
+
+ /// <summary>
+ /// Compute the number of bytes that would be needed to encode an
+ /// embedded message field, including the tag.
+ /// </summary>
+ public static int ComputeMessageSize(int fieldNumber, IMessageLite value)
+ {
+ int size = value.SerializedSize;
+ return ComputeTagSize(fieldNumber) + ComputeRawVarint32Size((uint) size) + size;
+ }
+
+ /// <summary>
+ /// Compute the number of bytes that would be needed to encode a
+ /// bytes field, including the tag.
+ /// </summary>
+ public static int ComputeBytesSize(int fieldNumber, ByteString value)
+ {
+ return ComputeTagSize(fieldNumber) +
+ ComputeRawVarint32Size((uint) value.Length) +
+ value.Length;
+ }
+
+ /// <summary>
+ /// Compute the number of bytes that would be needed to encode a
+ /// uint32 field, including the tag.
+ /// </summary>
+ [CLSCompliant(false)]
+ public static int ComputeUInt32Size(int fieldNumber, uint value)
+ {
+ return ComputeTagSize(fieldNumber) + ComputeRawVarint32Size(value);
+ }
+
+ /// <summary>
+ /// Compute the number of bytes that would be needed to encode a
+ /// enum field, including the tag. The caller is responsible for
+ /// converting the enum value to its numeric value.
+ /// </summary>
+ public static int ComputeEnumSize(int fieldNumber, int value)
+ {
+ return ComputeTagSize(fieldNumber) + ComputeEnumSizeNoTag(value);
+ }
+
+ /// <summary>
+ /// Compute the number of bytes that would be needed to encode an
+ /// sfixed32 field, including the tag.
+ /// </summary>
+ public static int ComputeSFixed32Size(int fieldNumber, int value)
+ {
+ return ComputeTagSize(fieldNumber) + LittleEndian32Size;
+ }
+
+ /// <summary>
+ /// Compute the number of bytes that would be needed to encode an
+ /// sfixed64 field, including the tag.
+ /// </summary>
+ public static int ComputeSFixed64Size(int fieldNumber, long value)
+ {
+ return ComputeTagSize(fieldNumber) + LittleEndian64Size;
+ }
+
+ /// <summary>
+ /// Compute the number of bytes that would be needed to encode an
+ /// sint32 field, including the tag.
+ /// </summary>
+ public static int ComputeSInt32Size(int fieldNumber, int value)
+ {
+ return ComputeTagSize(fieldNumber) + ComputeRawVarint32Size(EncodeZigZag32(value));
+ }
+
+ /// <summary>
+ /// Compute the number of bytes that would be needed to encode an
+ /// sint64 field, including the tag.
+ /// </summary>
+ public static int ComputeSInt64Size(int fieldNumber, long value)
+ {
+ return ComputeTagSize(fieldNumber) + ComputeRawVarint64Size(EncodeZigZag64(value));
+ }
+
+ /// <summary>
+ /// Compute the number of bytes that would be needed to encode a
+ /// double field, including the tag.
+ /// </summary>
+ public static int ComputeDoubleSizeNoTag(double value)
+ {
+ return LittleEndian64Size;
+ }
+
+ /// <summary>
+ /// Compute the number of bytes that would be needed to encode a
+ /// float field, including the tag.
+ /// </summary>
+ public static int ComputeFloatSizeNoTag(float value)
+ {
+ return LittleEndian32Size;
+ }
+
+ /// <summary>
+ /// Compute the number of bytes that would be needed to encode a
+ /// uint64 field, including the tag.
+ /// </summary>
+ [CLSCompliant(false)]
+ public static int ComputeUInt64SizeNoTag(ulong value)
+ {
+ return ComputeRawVarint64Size(value);
+ }
+
+ /// <summary>
+ /// Compute the number of bytes that would be needed to encode an
+ /// int64 field, including the tag.
+ /// </summary>
+ public static int ComputeInt64SizeNoTag(long value)
+ {
+ return ComputeRawVarint64Size((ulong) value);
+ }
+
+ /// <summary>
+ /// Compute the number of bytes that would be needed to encode an
+ /// int32 field, including the tag.
+ /// </summary>
+ public static int ComputeInt32SizeNoTag(int value)
+ {
+ if (value >= 0)
+ {
+ return ComputeRawVarint32Size((uint) value);
+ }
+ else
+ {
+ // Must sign-extend.
+ return 10;
+ }
+ }
+
+ /// <summary>
+ /// Compute the number of bytes that would be needed to encode a
+ /// fixed64 field, including the tag.
+ /// </summary>
+ [CLSCompliant(false)]
+ public static int ComputeFixed64SizeNoTag(ulong value)
+ {
+ return LittleEndian64Size;
+ }
+
+ /// <summary>
+ /// Compute the number of bytes that would be needed to encode a
+ /// fixed32 field, including the tag.
+ /// </summary>
+ [CLSCompliant(false)]
+ public static int ComputeFixed32SizeNoTag(uint value)
+ {
+ return LittleEndian32Size;
+ }
+
+ /// <summary>
+ /// Compute the number of bytes that would be needed to encode a
+ /// bool field, including the tag.
+ /// </summary>
+ public static int ComputeBoolSizeNoTag(bool value)
+ {
+ return 1;
+ }
+
+ /// <summary>
+ /// Compute the number of bytes that would be needed to encode a
+ /// string field, including the tag.
+ /// </summary>
+ public static int ComputeStringSizeNoTag(String value)
+ {
+ int byteArraySize = Encoding.UTF8.GetByteCount(value);
+ return ComputeRawVarint32Size((uint) byteArraySize) +
+ byteArraySize;
+ }
+
+ /// <summary>
+ /// Compute the number of bytes that would be needed to encode a
+ /// group field, including the tag.
+ /// </summary>
+ public static int ComputeGroupSizeNoTag(IMessageLite value)
+ {
+ return value.SerializedSize;
+ }
+
+ /// <summary>
+ /// Compute the number of bytes that would be needed to encode a
+ /// group field represented by an UnknownFieldSet, including the tag.
+ /// </summary>
+ [Obsolete]
+ public static int ComputeUnknownGroupSizeNoTag(IMessageLite value)
+ {
+ return value.SerializedSize;
+ }
+
+ /// <summary>
+ /// Compute the number of bytes that would be needed to encode an
+ /// embedded message field, including the tag.
+ /// </summary>
+ public static int ComputeMessageSizeNoTag(IMessageLite value)
+ {
+ int size = value.SerializedSize;
+ return ComputeRawVarint32Size((uint) size) + size;
+ }
+
+ /// <summary>
+ /// Compute the number of bytes that would be needed to encode a
+ /// bytes field, including the tag.
+ /// </summary>
+ public static int ComputeBytesSizeNoTag(ByteString value)
+ {
+ return ComputeRawVarint32Size((uint) value.Length) +
+ value.Length;
+ }
+
+ /// <summary>
+ /// Compute the number of bytes that would be needed to encode a
+ /// uint32 field, including the tag.
+ /// </summary>
+ [CLSCompliant(false)]
+ public static int ComputeUInt32SizeNoTag(uint value)
+ {
+ return ComputeRawVarint32Size(value);
+ }
+
+ /// <summary>
+ /// Compute the number of bytes that would be needed to encode a
+ /// enum field, including the tag. The caller is responsible for
+ /// converting the enum value to its numeric value.
+ /// </summary>
+ public static int ComputeEnumSizeNoTag(int value)
+ {
+ return ComputeInt32SizeNoTag(value);
+ }
+
+ /// <summary>
+ /// Compute the number of bytes that would be needed to encode an
+ /// sfixed32 field, including the tag.
+ /// </summary>
+ public static int ComputeSFixed32SizeNoTag(int value)
+ {
+ return LittleEndian32Size;
+ }
+
+ /// <summary>
+ /// Compute the number of bytes that would be needed to encode an
+ /// sfixed64 field, including the tag.
+ /// </summary>
+ public static int ComputeSFixed64SizeNoTag(long value)
+ {
+ return LittleEndian64Size;
+ }
+
+ /// <summary>
+ /// Compute the number of bytes that would be needed to encode an
+ /// sint32 field, including the tag.
+ /// </summary>
+ public static int ComputeSInt32SizeNoTag(int value)
+ {
+ return ComputeRawVarint32Size(EncodeZigZag32(value));
+ }
+
+ /// <summary>
+ /// Compute the number of bytes that would be needed to encode an
+ /// sint64 field, including the tag.
+ /// </summary>
+ public static int ComputeSInt64SizeNoTag(long value)
+ {
+ return ComputeRawVarint64Size(EncodeZigZag64(value));
+ }
+
+ /*
+ * Compute the number of bytes that would be needed to encode a
+ * MessageSet extension to the stream. For historical reasons,
+ * the wire format differs from normal fields.
+ */
+
+ /// <summary>
+ /// Compute the number of bytes that would be needed to encode a
+ /// MessageSet extension to the stream. For historical reasons,
+ /// the wire format differs from normal fields.
+ /// </summary>
+ public static int ComputeMessageSetExtensionSize(int fieldNumber, IMessageLite value)
+ {
+ return ComputeTagSize(WireFormat.MessageSetField.Item)*2 +
+ ComputeUInt32Size(WireFormat.MessageSetField.TypeID, (uint) fieldNumber) +
+ ComputeMessageSize(WireFormat.MessageSetField.Message, value);
+ }
+
+ /// <summary>
+ /// Compute the number of bytes that would be needed to encode an
+ /// unparsed MessageSet extension field to the stream. For
+ /// historical reasons, the wire format differs from normal fields.
+ /// </summary>
+ public static int ComputeRawMessageSetExtensionSize(int fieldNumber, ByteString value)
+ {
+ return ComputeTagSize(WireFormat.MessageSetField.Item)*2 +
+ ComputeUInt32Size(WireFormat.MessageSetField.TypeID, (uint) fieldNumber) +
+ ComputeBytesSize(WireFormat.MessageSetField.Message, value);
+ }
+
+ /// <summary>
+ /// Compute the number of bytes that would be needed to encode a varint.
+ /// </summary>
+ [CLSCompliant(false)]
+ public static int ComputeRawVarint32Size(uint value)
+ {
+ if ((value & (0xffffffff << 7)) == 0)
+ {
+ return 1;
+ }
+ if ((value & (0xffffffff << 14)) == 0)
+ {
+ return 2;
+ }
+ if ((value & (0xffffffff << 21)) == 0)
+ {
+ return 3;
+ }
+ if ((value & (0xffffffff << 28)) == 0)
+ {
+ return 4;
+ }
+ return 5;
+ }
+
+ /// <summary>
+ /// Compute the number of bytes that would be needed to encode a varint.
+ /// </summary>
+ [CLSCompliant(false)]
+ public static int ComputeRawVarint64Size(ulong value)
+ {
+ if ((value & (0xffffffffffffffffL << 7)) == 0)
+ {
+ return 1;
+ }
+ if ((value & (0xffffffffffffffffL << 14)) == 0)
+ {
+ return 2;
+ }
+ if ((value & (0xffffffffffffffffL << 21)) == 0)
+ {
+ return 3;
+ }
+ if ((value & (0xffffffffffffffffL << 28)) == 0)
+ {
+ return 4;
+ }
+ if ((value & (0xffffffffffffffffL << 35)) == 0)
+ {
+ return 5;
+ }
+ if ((value & (0xffffffffffffffffL << 42)) == 0)
+ {
+ return 6;
+ }
+ if ((value & (0xffffffffffffffffL << 49)) == 0)
+ {
+ return 7;
+ }
+ if ((value & (0xffffffffffffffffL << 56)) == 0)
+ {
+ return 8;
+ }
+ if ((value & (0xffffffffffffffffL << 63)) == 0)
+ {
+ return 9;
+ }
+ return 10;
+ }
+
+ /// <summary>
+ /// Compute the number of bytes that would be needed to encode a
+ /// field of arbitrary type, including the tag, to the stream.
+ /// </summary>
+ public static int ComputeFieldSize(FieldType fieldType, int fieldNumber, Object value)
+ {
+ switch (fieldType)
+ {
+ case FieldType.Double:
+ return ComputeDoubleSize(fieldNumber, (double) value);
+ case FieldType.Float:
+ return ComputeFloatSize(fieldNumber, (float) value);
+ case FieldType.Int64:
+ return ComputeInt64Size(fieldNumber, (long) value);
+ case FieldType.UInt64:
+ return ComputeUInt64Size(fieldNumber, (ulong) value);
+ case FieldType.Int32:
+ return ComputeInt32Size(fieldNumber, (int) value);
+ case FieldType.Fixed64:
+ return ComputeFixed64Size(fieldNumber, (ulong) value);
+ case FieldType.Fixed32:
+ return ComputeFixed32Size(fieldNumber, (uint) value);
+ case FieldType.Bool:
+ return ComputeBoolSize(fieldNumber, (bool) value);
+ case FieldType.String:
+ return ComputeStringSize(fieldNumber, (string) value);
+ case FieldType.Group:
+ return ComputeGroupSize(fieldNumber, (IMessageLite) value);
+ case FieldType.Message:
+ return ComputeMessageSize(fieldNumber, (IMessageLite) value);
+ case FieldType.Bytes:
+ return ComputeBytesSize(fieldNumber, (ByteString) value);
+ case FieldType.UInt32:
+ return ComputeUInt32Size(fieldNumber, (uint) value);
+ case FieldType.SFixed32:
+ return ComputeSFixed32Size(fieldNumber, (int) value);
+ case FieldType.SFixed64:
+ return ComputeSFixed64Size(fieldNumber, (long) value);
+ case FieldType.SInt32:
+ return ComputeSInt32Size(fieldNumber, (int) value);
+ case FieldType.SInt64:
+ return ComputeSInt64Size(fieldNumber, (long) value);
+ case FieldType.Enum:
+ if (value is Enum)
+ {
+ return ComputeEnumSize(fieldNumber, Convert.ToInt32(value));
+ }
+ else
+ {
+ return ComputeEnumSize(fieldNumber, ((IEnumLite) value).Number);
+ }
+ default:
+ throw new ArgumentOutOfRangeException("Invalid field type " + fieldType);
+ }
+ }
+
+ /// <summary>
+ /// Compute the number of bytes that would be needed to encode a
+ /// field of arbitrary type, excluding the tag, to the stream.
+ /// </summary>
+ public static int ComputeFieldSizeNoTag(FieldType fieldType, Object value)
+ {
+ switch (fieldType)
+ {
+ case FieldType.Double:
+ return ComputeDoubleSizeNoTag((double) value);
+ case FieldType.Float:
+ return ComputeFloatSizeNoTag((float) value);
+ case FieldType.Int64:
+ return ComputeInt64SizeNoTag((long) value);
+ case FieldType.UInt64:
+ return ComputeUInt64SizeNoTag((ulong) value);
+ case FieldType.Int32:
+ return ComputeInt32SizeNoTag((int) value);
+ case FieldType.Fixed64:
+ return ComputeFixed64SizeNoTag((ulong) value);
+ case FieldType.Fixed32:
+ return ComputeFixed32SizeNoTag((uint) value);
+ case FieldType.Bool:
+ return ComputeBoolSizeNoTag((bool) value);
+ case FieldType.String:
+ return ComputeStringSizeNoTag((string) value);
+ case FieldType.Group:
+ return ComputeGroupSizeNoTag((IMessageLite) value);
+ case FieldType.Message:
+ return ComputeMessageSizeNoTag((IMessageLite) value);
+ case FieldType.Bytes:
+ return ComputeBytesSizeNoTag((ByteString) value);
+ case FieldType.UInt32:
+ return ComputeUInt32SizeNoTag((uint) value);
+ case FieldType.SFixed32:
+ return ComputeSFixed32SizeNoTag((int) value);
+ case FieldType.SFixed64:
+ return ComputeSFixed64SizeNoTag((long) value);
+ case FieldType.SInt32:
+ return ComputeSInt32SizeNoTag((int) value);
+ case FieldType.SInt64:
+ return ComputeSInt64SizeNoTag((long) value);
+ case FieldType.Enum:
+ if (value is Enum)
+ {
+ return ComputeEnumSizeNoTag(Convert.ToInt32(value));
+ }
+ else
+ {
+ return ComputeEnumSizeNoTag(((IEnumLite) value).Number);
+ }
+ default:
+ throw new ArgumentOutOfRangeException("Invalid field type " + fieldType);
+ }
+ }
+
+ /// <summary>
+ /// Compute the number of bytes that would be needed to encode a tag.
+ /// </summary>
+ public static int ComputeTagSize(int fieldNumber)
+ {
+ return ComputeRawVarint32Size(WireFormat.MakeTag(fieldNumber, 0));
+ }
+ }
+}
\ No newline at end of file |