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author | Paul Yang <paulyang1211@gmail.com> | 2015-05-06 17:32:07 -0700 |
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committer | Paul Yang <paulyang1211@gmail.com> | 2015-05-06 17:32:07 -0700 |
commit | b89de5f6e0d81eccc34664f19362b83a82a152ca (patch) | |
tree | f27448a279bea152488306d66e999c4d2a70fa42 /objectivec/GPBWireFormat.m | |
parent | f47db47cd97c00a3a49584eda13e03c3352e5215 (diff) | |
parent | 30650d81d9baa446dbc8deb784ba53794cafda5b (diff) | |
download | protobuf-b89de5f6e0d81eccc34664f19362b83a82a152ca.tar.gz protobuf-b89de5f6e0d81eccc34664f19362b83a82a152ca.tar.bz2 protobuf-b89de5f6e0d81eccc34664f19362b83a82a152ca.zip |
Merge pull request #331 from thomasvl/objc_alpha1_drop
Objective C compiler plugin and runtime
Diffstat (limited to 'objectivec/GPBWireFormat.m')
-rw-r--r-- | objectivec/GPBWireFormat.m | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/objectivec/GPBWireFormat.m b/objectivec/GPBWireFormat.m new file mode 100644 index 00000000..7435221f --- /dev/null +++ b/objectivec/GPBWireFormat.m @@ -0,0 +1,78 @@ +// Protocol Buffers - Google's data interchange format +// Copyright 2008 Google Inc. All rights reserved. +// https://developers.google.com/protocol-buffers/ +// +// 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. + +#import "GPBWireFormat.h" + +#import "GPBUtilities_PackagePrivate.h" + +enum { + GPBWireFormatTagTypeBits = 3, + GPBWireFormatTagTypeMask = 7 /* = (1 << GPBWireFormatTagTypeBits) - 1 */, +}; + +uint32_t GPBWireFormatMakeTag(uint32_t fieldNumber, GPBWireFormat wireType) { + return (fieldNumber << GPBWireFormatTagTypeBits) | wireType; +} + +GPBWireFormat GPBWireFormatGetTagWireType(uint32_t tag) { + return (GPBWireFormat)(tag & GPBWireFormatTagTypeMask); +} + +uint32_t GPBWireFormatGetTagFieldNumber(uint32_t tag) { + return GPBLogicalRightShift32(tag, GPBWireFormatTagTypeBits); +} + +GPBWireFormat GPBWireFormatForType(GPBType type, BOOL isPacked) { + if (isPacked) { + return GPBWireFormatLengthDelimited; + } + + static const GPBWireFormat format[GPBTypeCount] = { + GPBWireFormatVarint, // GPBTypeBool + GPBWireFormatFixed32, // GPBTypeFixed32 + GPBWireFormatFixed32, // GPBTypeSFixed32 + GPBWireFormatFixed32, // GPBTypeFloat + GPBWireFormatFixed64, // GPBTypeFixed64 + GPBWireFormatFixed64, // GPBTypeSFixed64 + GPBWireFormatFixed64, // GPBTypeDouble + GPBWireFormatVarint, // GPBTypeInt32 + GPBWireFormatVarint, // GPBTypeInt64 + GPBWireFormatVarint, // GPBTypeSInt32 + GPBWireFormatVarint, // GPBTypeSInt64 + GPBWireFormatVarint, // GPBTypeUInt32 + GPBWireFormatVarint, // GPBTypeUInt64 + GPBWireFormatLengthDelimited, // GPBTypeBytes + GPBWireFormatLengthDelimited, // GPBTypeString + GPBWireFormatLengthDelimited, // GPBTypeMessage + GPBWireFormatStartGroup, // GPBTypeGroup + GPBWireFormatVarint // GPBTypeEnum + }; + return format[type]; +} |