1 //===- Formatters.cpp -----------------------------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "llvm/DebugInfo/CodeView/Formatters.h" 10 #include "llvm/ADT/ArrayRef.h" 11 #include "llvm/DebugInfo/CodeView/GUID.h" 12 #include "llvm/Support/raw_ostream.h" 13 #include <algorithm> 14 #include <cassert> 15 16 using namespace llvm; 17 using namespace llvm::codeview; 18 using namespace llvm::codeview::detail; 19 20 GuidAdapter::GuidAdapter(StringRef Guid) 21 : FormatAdapter(makeArrayRef(Guid.bytes_begin(), Guid.bytes_end())) {} 22 23 GuidAdapter::GuidAdapter(ArrayRef<uint8_t> Guid) 24 : FormatAdapter(std::move(Guid)) {} 25 26 void GuidAdapter::format(raw_ostream &Stream, StringRef Style) { 27 static const char *Lookup = "0123456789ABCDEF"; 28 29 assert(Item.size() == 16 && "Expected 16-byte GUID"); 30 Stream << "{"; 31 for (int i = 0; i < 16;) { 32 uint8_t Byte = Item[i]; 33 uint8_t HighNibble = (Byte >> 4) & 0xF; 34 uint8_t LowNibble = Byte & 0xF; 35 Stream << Lookup[HighNibble] << Lookup[LowNibble]; 36 ++i; 37 if (i >= 4 && i <= 10 && i % 2 == 0) 38 Stream << "-"; 39 } 40 Stream << "}"; 41 } 42 43 raw_ostream &llvm::codeview::operator<<(raw_ostream &OS, const GUID &Guid) { 44 codeview::detail::GuidAdapter A(Guid.Guid); 45 A.format(OS, ""); 46 return OS; 47 } 48