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//===-- ResourceSerializator.h ----------------------------------*- C++-*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===---------------------------------------------------------------------===//
//
// This defines a visitor serializing resources to a .res stream.
//
//===---------------------------------------------------------------------===//
#ifndef LLVM_TOOLS_LLVMRC_RESOURCESERIALIZATOR_H
#define LLVM_TOOLS_LLVMRC_RESOURCESERIALIZATOR_H
#include "ResourceScriptStmt.h"
#include "ResourceVisitor.h"
#include "llvm/Support/Endian.h"
namespace llvm {
namespace rc {
class ResourceFileWriter : public Visitor {
public:
ResourceFileWriter(std::unique_ptr<raw_fd_ostream> Stream)
: FS(std::move(Stream)) {
assert(FS && "Output stream needs to be provided to the serializator");
}
Error visitNullResource(const RCResource *) override;
Error visitHTMLResource(const RCResource *) override;
Error visitLanguageStmt(const LanguageResource *) override;
struct ObjectInfo {
uint16_t LanguageInfo;
ObjectInfo() : LanguageInfo(0) {}
} ObjectData;
private:
Error handleError(Error &&Err, const RCResource *Res);
Error
writeResource(const RCResource *Res,
Error (ResourceFileWriter::*BodyWriter)(const RCResource *));
Error writeNullBody(const RCResource *);
Error writeHTMLBody(const RCResource *);
// Output stream handling.
std::unique_ptr<raw_fd_ostream> FS;
uint64_t tell() const { return FS->tell(); }
uint64_t writeObject(const ArrayRef<uint8_t> Data);
template <typename T> uint64_t writeInt(const T &Value) {
support::detail::packed_endian_specific_integral<T, support::little,
support::unaligned>
Object(Value);
return writeObject(Object);
}
template <typename T> uint64_t writeObject(const T &Value) {
return writeObject(ArrayRef<uint8_t>(
reinterpret_cast<const uint8_t *>(&Value), sizeof(T)));
}
template <typename T> void writeObjectAt(const T &Value, uint64_t Position) {
FS->pwrite((const char *)&Value, sizeof(T), Position);
}
Error writeCString(StringRef Str, bool WriteTerminator = true);
Error writeIdentifier(const IntOrString &Ident);
Error writeIntOrString(const IntOrString &Data);
Error appendFile(StringRef Filename);
void padStream(uint64_t Length);
};
} // namespace rc
} // namespace llvm
#endif
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