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6e9b496643
Deserialize.h Serialization.h now includes trait speciailizations for unsigned long, etc. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43307 91177308-0d34-0410-b5e6-96231b3b80d8
93 lines
2.3 KiB
C++
93 lines
2.3 KiB
C++
//==- Deserialize.cpp - Generic Object Serialization to Bitcode --*- C++ -*-==//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file was developed by Ted Kremenek and is distributed under the
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// University of Illinois Open Source License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file defines the internal methods used for object serialization.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Bitcode/Deserialize.h"
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using namespace llvm;
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Deserializer::Deserializer(BitstreamReader& stream)
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: Stream(stream), RecIdx(0) {
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}
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Deserializer::~Deserializer() {
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assert (RecIdx >= Record.size() &&
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"Still scanning bitcode record when deserialization completed.");
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}
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void Deserializer::ReadRecord() {
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// FIXME: Check if we haven't run off the edge of the stream.
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// FIXME: Handle abbreviations.
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// FIXME: Check for the correct code.
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unsigned Code = Stream.ReadCode();
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assert (Record.size() == 0);
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Stream.ReadRecord(Code,Record);
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assert (Record.size() > 0);
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}
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uint64_t Deserializer::ReadInt() {
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// FIXME: Any error recovery/handling with incomplete or bad files?
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if (!inRecord())
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ReadRecord();
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return Record[RecIdx++];
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}
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char* Deserializer::ReadCStr(char* cstr, unsigned MaxLen, bool isNullTerm) {
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if (cstr == NULL)
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MaxLen = 0; // Zero this just in case someone does something funny.
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unsigned len = ReadInt();
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assert (MaxLen == 0 || (len + (isNullTerm ? 1 : 0)) <= MaxLen);
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if (!cstr)
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cstr = new char[len + (isNullTerm ? 1 : 0)];
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assert (cstr != NULL);
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for (unsigned i = 0; i < len; ++i)
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cstr[i] = (char) ReadInt();
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if (isNullTerm)
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cstr[len+1] = '\0';
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return cstr;
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}
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void Deserializer::ReadCStr(std::vector<char>& buff, bool isNullTerm) {
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unsigned len = ReadInt();
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buff.clear();
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buff.reserve(len);
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for (unsigned i = 0; i < len; ++i)
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buff.push_back((char) ReadInt());
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if (isNullTerm)
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buff.push_back('\0');
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}
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#define INT_READ(TYPE)\
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void SerializeTrait<TYPE>::Read(Deserializer& D, TYPE& X) {\
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X = (TYPE) D.ReadInt(); }
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INT_READ(bool)
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INT_READ(unsigned char)
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INT_READ(unsigned short)
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INT_READ(unsigned int)
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INT_READ(unsigned long)
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INT_READ(unsigned long long)
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