10 #include "llvm/Support/Endian.h" 17 return llvm::createStringError(llvm::inconvertibleErrorCode(), Msg);
20 llvm::Expected<Chunk>
readChunk(llvm::StringRef &Stream) {
21 if (Stream.size() < 8)
22 return makeError(
"incomplete chunk header");
24 std::copy(Stream.begin(), Stream.begin() + 4, C.
ID.begin());
25 Stream = Stream.drop_front(4);
26 uint32_t Len = llvm::support::endian::read32le(Stream.take_front(4).begin());
27 Stream = Stream.drop_front(4);
28 if (Stream.size() < Len)
30 C.
Data = Stream.take_front(Len);
31 Stream = Stream.drop_front(Len);
32 if (Len % 2 & !Stream.empty()) {
35 Stream = Stream.drop_front();
41 OS.write(C.
ID.data(), C.
ID.size());
43 llvm::support::endian::write32le(Size, C.
Data.size());
44 OS.write(Size,
sizeof(Size));
46 if (C.
Data.size() % 2)
51 llvm::Expected<File>
readFile(llvm::StringRef Stream) {
54 return RIFF.takeError();
57 if (
RIFF->Data.size() < 4)
60 std::copy(
RIFF->Data.begin(),
RIFF->Data.begin() + 4, F.
Type.begin());
61 for (llvm::StringRef Body =
RIFF->Data.drop_front(4); !Body.empty();)
65 return Chunk.takeError();
72 for (
const auto &C : F.
Chunks)
73 DataLen += 4 + 4 + C.Data.size() + (C.Data.size() % 2);
76 llvm::support::endian::write32le(Size, DataLen);
77 OS.write(Size,
sizeof(Size));
78 OS.write(F.
Type.data(), F.
Type.size());
79 for (
const auto &C : F.
Chunks)
static llvm::Error makeError(const char *Msg)
constexpr FourCC fourCC(const char(&Literal)[5])
llvm::Expected< File > readFile(llvm::StringRef Stream)
std::vector< Chunk > Chunks
llvm::Expected< Chunk > readChunk(llvm::StringRef &Stream)
===– Representation.cpp - ClangDoc Representation --------—*- C++ -*-===//
llvm::raw_ostream & operator<<(llvm::raw_ostream &OS, const Chunk &C)