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llvm-mirror/lib/DebugInfo/CodeView/Formatters.cpp
Reid Kleckner 9308fade75 [codeview] Fix YAML for LF_TYPESERVER2 by hoisting PDB_UniqueId
Summary:
We were treating the GUIDs in TypeServer2Record as strings, and the
non-ASCII bytes in the GUID would not round-trip through YAML.

We already had the PDB_UniqueId type portably represent a Windows GUID,
but we need to hoist that up to the DebugInfo/CodeView library so that
we can use it in the TypeServer2Record as well as in PDB parsing code.

Reviewers: inglorion, amccarth

Subscribers: llvm-commits, hiraditya

Differential Revision: https://reviews.llvm.org/D35495

llvm-svn: 308234
2017-07-17 23:59:44 +00:00

49 lines
1.4 KiB
C++

//===- Formatters.cpp -----------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "llvm/DebugInfo/CodeView/Formatters.h"
#include "llvm/ADT/ArrayRef.h"
#include "llvm/DebugInfo/CodeView/GUID.h"
#include "llvm/Support/raw_ostream.h"
#include <algorithm>
#include <cassert>
using namespace llvm;
using namespace llvm::codeview;
using namespace llvm::codeview::detail;
GuidAdapter::GuidAdapter(StringRef Guid)
: FormatAdapter(makeArrayRef(Guid.bytes_begin(), Guid.bytes_end())) {}
GuidAdapter::GuidAdapter(ArrayRef<uint8_t> Guid)
: FormatAdapter(std::move(Guid)) {}
void GuidAdapter::format(raw_ostream &Stream, StringRef Style) {
static const char *Lookup = "0123456789ABCDEF";
assert(Item.size() == 16 && "Expected 16-byte GUID");
Stream << "{";
for (int i = 0; i < 16;) {
uint8_t Byte = Item[i];
uint8_t HighNibble = (Byte >> 4) & 0xF;
uint8_t LowNibble = Byte & 0xF;
Stream << Lookup[HighNibble] << Lookup[LowNibble];
++i;
if (i >= 4 && i <= 10 && i % 2 == 0)
Stream << "-";
}
Stream << "}";
}
raw_ostream &llvm::codeview::operator<<(raw_ostream &OS, const GUID &Guid) {
codeview::detail::GuidAdapter A(Guid.Guid);
A.format(OS, "");
return OS;
}