1 //===-- ScopedPrinter.h ---------------------------------------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 #ifndef LLVM_SUPPORT_SCOPEDPRINTER_H
11 #define LLVM_SUPPORT_SCOPEDPRINTER_H
13 #include "llvm/ADT/APSInt.h"
14 #include "llvm/ADT/ArrayRef.h"
15 #include "llvm/ADT/SmallVector.h"
16 #include "llvm/ADT/StringRef.h"
17 #include "llvm/Support/DataTypes.h"
18 #include "llvm/Support/Endian.h"
19 #include "llvm/Support/raw_ostream.h"
24 template <typename T> struct EnumEntry {
26 // While Name suffices in most of the cases, in certain cases
27 // GNU style and LLVM style of ELFDumper do not
28 // display same string for same enum. The AltName if initialized appropriately
29 // will hold the string that GNU style emits.
31 // "EM_X86_64" string on LLVM style for Elf_Ehdr->e_machine corresponds to
32 // "Advanced Micro Devices X86-64" on GNU style
35 EnumEntry(StringRef N, StringRef A, T V) : Name(N), AltName(A), Value(V) {}
36 EnumEntry(StringRef N, T V) : Name(N), AltName(N), Value(V) {}
40 // To avoid sign-extension we have to explicitly cast to the appropriate
41 // unsigned type. The overloads are here so that every type that is implicitly
42 // convertible to an integer (including enums and endian helpers) can be used
43 // without requiring type traits or call-site changes.
44 HexNumber(char Value) : Value(static_cast<unsigned char>(Value)) {}
45 HexNumber(signed char Value) : Value(static_cast<unsigned char>(Value)) {}
46 HexNumber(signed short Value) : Value(static_cast<unsigned short>(Value)) {}
47 HexNumber(signed int Value) : Value(static_cast<unsigned int>(Value)) {}
48 HexNumber(signed long Value) : Value(static_cast<unsigned long>(Value)) {}
49 HexNumber(signed long long Value)
50 : Value(static_cast<unsigned long long>(Value)) {}
51 HexNumber(unsigned char Value) : Value(Value) {}
52 HexNumber(unsigned short Value) : Value(Value) {}
53 HexNumber(unsigned int Value) : Value(Value) {}
54 HexNumber(unsigned long Value) : Value(Value) {}
55 HexNumber(unsigned long long Value) : Value(Value) {}
59 raw_ostream &operator<<(raw_ostream &OS, const HexNumber &Value);
60 const std::string to_hexString(uint64_t Value, bool UpperCase = true);
62 template <class T> const std::string to_string(const T &Value) {
64 llvm::raw_string_ostream stream(number);
71 ScopedPrinter(raw_ostream &OS) : OS(OS), IndentLevel(0) {}
73 void flush() { OS.flush(); }
75 void indent(int Levels = 1) { IndentLevel += Levels; }
77 void unindent(int Levels = 1) {
78 IndentLevel = std::max(0, IndentLevel - Levels);
81 void resetIndent() { IndentLevel = 0; }
83 int getIndentLevel() { return IndentLevel; }
85 void setPrefix(StringRef P) { Prefix = P; }
89 for (int i = 0; i < IndentLevel; ++i)
93 template <typename T> HexNumber hex(T Value) { return HexNumber(Value); }
95 template <typename T, typename TEnum>
96 void printEnum(StringRef Label, T Value,
97 ArrayRef<EnumEntry<TEnum>> EnumValues) {
100 for (const auto &EnumItem : EnumValues) {
101 if (EnumItem.Value == Value) {
102 Name = EnumItem.Name;
109 startLine() << Label << ": " << Name << " (" << hex(Value) << ")\n";
111 startLine() << Label << ": " << hex(Value) << "\n";
115 template <typename T, typename TFlag>
116 void printFlags(StringRef Label, T Value, ArrayRef<EnumEntry<TFlag>> Flags,
117 TFlag EnumMask1 = {}, TFlag EnumMask2 = {},
118 TFlag EnumMask3 = {}) {
119 typedef EnumEntry<TFlag> FlagEntry;
120 typedef SmallVector<FlagEntry, 10> FlagVector;
123 for (const auto &Flag : Flags) {
128 if (Flag.Value & EnumMask1)
129 EnumMask = EnumMask1;
130 else if (Flag.Value & EnumMask2)
131 EnumMask = EnumMask2;
132 else if (Flag.Value & EnumMask3)
133 EnumMask = EnumMask3;
134 bool IsEnum = (Flag.Value & EnumMask) != 0;
135 if ((!IsEnum && (Value & Flag.Value) == Flag.Value) ||
136 (IsEnum && (Value & EnumMask) == Flag.Value)) {
137 SetFlags.push_back(Flag);
141 llvm::sort(SetFlags, &flagName<TFlag>);
143 startLine() << Label << " [ (" << hex(Value) << ")\n";
144 for (const auto &Flag : SetFlags) {
145 startLine() << " " << Flag.Name << " (" << hex(Flag.Value) << ")\n";
147 startLine() << "]\n";
150 template <typename T> void printFlags(StringRef Label, T Value) {
151 startLine() << Label << " [ (" << hex(Value) << ")\n";
153 uint64_t Curr = Value;
156 startLine() << " " << hex(Flag) << "\n";
160 startLine() << "]\n";
163 void printNumber(StringRef Label, uint64_t Value) {
164 startLine() << Label << ": " << Value << "\n";
167 void printNumber(StringRef Label, uint32_t Value) {
168 startLine() << Label << ": " << Value << "\n";
171 void printNumber(StringRef Label, uint16_t Value) {
172 startLine() << Label << ": " << Value << "\n";
175 void printNumber(StringRef Label, uint8_t Value) {
176 startLine() << Label << ": " << unsigned(Value) << "\n";
179 void printNumber(StringRef Label, int64_t Value) {
180 startLine() << Label << ": " << Value << "\n";
183 void printNumber(StringRef Label, int32_t Value) {
184 startLine() << Label << ": " << Value << "\n";
187 void printNumber(StringRef Label, int16_t Value) {
188 startLine() << Label << ": " << Value << "\n";
191 void printNumber(StringRef Label, int8_t Value) {
192 startLine() << Label << ": " << int(Value) << "\n";
195 void printNumber(StringRef Label, const APSInt &Value) {
196 startLine() << Label << ": " << Value << "\n";
199 void printBoolean(StringRef Label, bool Value) {
200 startLine() << Label << ": " << (Value ? "Yes" : "No") << '\n';
203 template <typename... T> void printVersion(StringRef Label, T... Version) {
204 startLine() << Label << ": ";
205 printVersionInternal(Version...);
206 getOStream() << "\n";
209 template <typename T> void printList(StringRef Label, const T &List) {
210 startLine() << Label << ": [";
212 for (const auto &Item : List) {
221 template <typename T, typename U>
222 void printList(StringRef Label, const T &List, const U &Printer) {
223 startLine() << Label << ": [";
225 for (const auto &Item : List) {
234 template <typename T> void printHexList(StringRef Label, const T &List) {
235 startLine() << Label << ": [";
237 for (const auto &Item : List) {
246 template <typename T> void printHex(StringRef Label, T Value) {
247 startLine() << Label << ": " << hex(Value) << "\n";
250 template <typename T> void printHex(StringRef Label, StringRef Str, T Value) {
251 startLine() << Label << ": " << Str << " (" << hex(Value) << ")\n";
254 template <typename T>
255 void printSymbolOffset(StringRef Label, StringRef Symbol, T Value) {
256 startLine() << Label << ": " << Symbol << '+' << hex(Value) << '\n';
259 void printString(StringRef Value) { startLine() << Value << "\n"; }
261 void printString(StringRef Label, StringRef Value) {
262 startLine() << Label << ": " << Value << "\n";
265 void printString(StringRef Label, const std::string &Value) {
266 printString(Label, StringRef(Value));
269 void printString(StringRef Label, const char* Value) {
270 printString(Label, StringRef(Value));
273 template <typename T>
274 void printNumber(StringRef Label, StringRef Str, T Value) {
275 startLine() << Label << ": " << Str << " (" << Value << ")\n";
278 void printBinary(StringRef Label, StringRef Str, ArrayRef<uint8_t> Value) {
279 printBinaryImpl(Label, Str, Value, false);
282 void printBinary(StringRef Label, StringRef Str, ArrayRef<char> Value) {
283 auto V = makeArrayRef(reinterpret_cast<const uint8_t *>(Value.data()),
285 printBinaryImpl(Label, Str, V, false);
288 void printBinary(StringRef Label, ArrayRef<uint8_t> Value) {
289 printBinaryImpl(Label, StringRef(), Value, false);
292 void printBinary(StringRef Label, ArrayRef<char> Value) {
293 auto V = makeArrayRef(reinterpret_cast<const uint8_t *>(Value.data()),
295 printBinaryImpl(Label, StringRef(), V, false);
298 void printBinary(StringRef Label, StringRef Value) {
299 auto V = makeArrayRef(reinterpret_cast<const uint8_t *>(Value.data()),
301 printBinaryImpl(Label, StringRef(), V, false);
304 void printBinaryBlock(StringRef Label, ArrayRef<uint8_t> Value,
305 uint32_t StartOffset) {
306 printBinaryImpl(Label, StringRef(), Value, true, StartOffset);
309 void printBinaryBlock(StringRef Label, ArrayRef<uint8_t> Value) {
310 printBinaryImpl(Label, StringRef(), Value, true);
313 void printBinaryBlock(StringRef Label, StringRef Value) {
314 auto V = makeArrayRef(reinterpret_cast<const uint8_t *>(Value.data()),
316 printBinaryImpl(Label, StringRef(), V, true);
319 template <typename T> void printObject(StringRef Label, const T &Value) {
320 startLine() << Label << ": " << Value << "\n";
323 raw_ostream &startLine() {
328 raw_ostream &getOStream() { return OS; }
331 template <typename T> void printVersionInternal(T Value) {
332 getOStream() << Value;
335 template <typename S, typename T, typename... TArgs>
336 void printVersionInternal(S Value, T Value2, TArgs... Args) {
337 getOStream() << Value << ".";
338 printVersionInternal(Value2, Args...);
341 template <typename T>
342 static bool flagName(const EnumEntry<T> &lhs, const EnumEntry<T> &rhs) {
343 return lhs.Name < rhs.Name;
346 void printBinaryImpl(StringRef Label, StringRef Str, ArrayRef<uint8_t> Value,
347 bool Block, uint32_t StartOffset = 0);
356 ScopedPrinter::printHex<support::ulittle16_t>(StringRef Label,
357 support::ulittle16_t Value) {
358 startLine() << Label << ": " << hex(Value) << "\n";
361 template<char Open, char Close>
362 struct DelimitedScope {
363 explicit DelimitedScope(ScopedPrinter &W) : W(W) {
364 W.startLine() << Open << '\n';
368 DelimitedScope(ScopedPrinter &W, StringRef N) : W(W) {
371 W.getOStream() << ' ';
372 W.getOStream() << Open << '\n';
378 W.startLine() << Close << '\n';
384 using DictScope = DelimitedScope<'{', '}'>;
385 using ListScope = DelimitedScope<'[', ']'>;