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//===- DiffPrinter.h ------------------------------------------ *- C++ --*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_TOOLS_LLVMPDBDUMP_DIFFPRINTER_H
#define LLVM_TOOLS_LLVMPDBDUMP_DIFFPRINTER_H
#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/StringMap.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/DebugInfo/PDB/Native/RawConstants.h"
#include "llvm/Support/FormatVariadic.h"
#include "llvm/Support/raw_ostream.h"
#include <list>
#include <unordered_set>
namespace std {
template <> struct hash<llvm::pdb::PdbRaw_FeatureSig> {
typedef llvm::pdb::PdbRaw_FeatureSig argument_type;
typedef std::size_t result_type;
result_type operator()(argument_type Item) const {
return std::hash<uint32_t>{}(uint32_t(Item));
}
};
} // namespace std
namespace llvm {
namespace pdb {
class PDBFile;
enum class DiffResult { UNSPECIFIED, IDENTICAL, EQUIVALENT, DIFFERENT };
struct IdenticalDiffProvider {
template <typename T, typename U>
DiffResult compare(const T &Left, const U &Right) {
return (Left == Right) ? DiffResult::IDENTICAL : DiffResult::DIFFERENT;
}
template <typename T> std::string format(const T &Item, bool Right) {
return formatv("{0}", Item).str();
}
};
struct EquivalentDiffProvider {
template <typename T, typename U>
DiffResult compare(const T &Left, const U &Right) {
return (Left == Right) ? DiffResult::IDENTICAL : DiffResult::EQUIVALENT;
}
template <typename T> std::string format(const T &Item, bool Right) {
return formatv("{0}", Item).str();
}
};
class DiffPrinter {
public:
DiffPrinter(uint32_t Indent, StringRef Header, uint32_t PropertyWidth,
uint32_t FieldWidth, bool Result, bool Values,
raw_ostream &Stream);
~DiffPrinter();
template <typename T, typename U> struct Identical {};
template <typename Provider = IdenticalDiffProvider, typename T, typename U>
void print(StringRef Property, const T &Left, const U &Right,
Provider P = Provider()) {
std::string L = P.format(Left, false);
std::string R = P.format(Right, true);
DiffResult Result = P.compare(Left, Right);
printExplicit(Property, Result, L, R);
}
void printExplicit(StringRef Property, DiffResult C, StringRef Left,
StringRef Right);
template <typename T, typename U>
void printExplicit(StringRef Property, DiffResult C, const T &Left,
const U &Right) {
std::string L = formatv("{0}", Left).str();
std::string R = formatv("{0}", Right).str();
printExplicit(Property, C, StringRef(L), StringRef(R));
}
template <typename T, typename U>
void diffUnorderedArray(StringRef Property, ArrayRef<T> Left,
ArrayRef<U> Right) {
std::unordered_set<T> LS(Left.begin(), Left.end());
std::unordered_set<U> RS(Right.begin(), Right.end());
std::string Count1 = formatv("{0} element(s)", Left.size());
std::string Count2 = formatv("{0} element(s)", Right.size());
print(std::string(Property) + "s (set)", Count1, Count2);
for (const auto &L : LS) {
auto Iter = RS.find(L);
std::string Text = formatv("{0}", L).str();
if (Iter == RS.end()) {
print(Property, Text, "(not present)");
continue;
}
print(Property, Text, Text);
RS.erase(Iter);
}
for (const auto &R : RS) {
auto Iter = LS.find(R);
std::string Text = formatv("{0}", R).str();
if (Iter == LS.end()) {
print(Property, "(not present)", Text);
continue;
}
print(Property, Text, Text);
}
}
template <typename ValueProvider = IdenticalDiffProvider, typename T,
typename U>
void diffUnorderedMap(StringRef Property, const StringMap<T> &Left,
const StringMap<U> &Right,
ValueProvider P = ValueProvider()) {
StringMap<U> RightCopy(Right);
std::string Count1 = formatv("{0} element(s)", Left.size());
std::string Count2 = formatv("{0} element(s)", Right.size());
print(std::string(Property) + "s (map)", Count1, Count2);
for (const auto &L : Left) {
auto Iter = RightCopy.find(L.getKey());
if (Iter == RightCopy.end()) {
printExplicit(L.getKey(), DiffResult::DIFFERENT, L.getValue(),
"(not present)");
continue;
}
print(L.getKey(), L.getValue(), Iter->getValue(), P);
RightCopy.erase(Iter);
}
for (const auto &R : RightCopy) {
printExplicit(R.getKey(), DiffResult::DIFFERENT, "(not present)",
R.getValue());
}
}
void printFullRow(StringRef Text);
private:
uint32_t tableWidth() const;
void printHeaderRow();
void printSeparatorRow();
void newLine(char InitialChar = '|');
void printValue(StringRef Value, DiffResult C, AlignStyle Style,
uint32_t Width, bool Force);
void printResult(DiffResult Result);
bool PrintResult;
bool PrintValues;
uint32_t Indent;
uint32_t PropertyWidth;
uint32_t FieldWidth;
raw_ostream &OS;
};
} // namespace pdb
} // namespace llvm
#endif
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