add_llvm_library(LLVMDemangle
ItaniumDemangle.cpp
+
+ ADDITIONAL_HEADER_DIRS
+ "${LLVM_MAIN_INCLUDE_DIR}/llvm/Demangle"
)
--- /dev/null
+//===--- Compiler.h ---------------------------------------------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//
+// This file contains a variety of feature test macros copied from
+// include/llvm/Support/Compiler.h so that LLVMDemangle does not need to take
+// a dependency on LLVMSupport.
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_DEMANGLE_COMPILER_H
+#define LLVM_DEMANGLE_COMPILER_H
+
+#ifdef _MSC_VER
+// snprintf is implemented in VS 2015
+#if _MSC_VER < 1900
+#define snprintf _snprintf_s
+#endif
+#endif
+
+#ifndef __has_feature
+#define __has_feature(x) 0
+#endif
+
+#ifndef __has_cpp_attribute
+#define __has_cpp_attribute(x) 0
+#endif
+
+#ifndef __has_attribute
+#define __has_attribute(x) 0
+#endif
+
+#ifndef __has_builtin
+#define __has_builtin(x) 0
+#endif
+
+#ifndef LLVM_GNUC_PREREQ
+#if defined(__GNUC__) && defined(__GNUC_MINOR__) && defined(__GNUC_PATCHLEVEL__)
+#define LLVM_GNUC_PREREQ(maj, min, patch) \
+ ((__GNUC__ << 20) + (__GNUC_MINOR__ << 10) + __GNUC_PATCHLEVEL__ >= \
+ ((maj) << 20) + ((min) << 10) + (patch))
+#elif defined(__GNUC__) && defined(__GNUC_MINOR__)
+#define LLVM_GNUC_PREREQ(maj, min, patch) \
+ ((__GNUC__ << 20) + (__GNUC_MINOR__ << 10) >= ((maj) << 20) + ((min) << 10))
+#else
+#define LLVM_GNUC_PREREQ(maj, min, patch) 0
+#endif
+#endif
+
+#if __has_attribute(used) || LLVM_GNUC_PREREQ(3, 1, 0)
+#define LLVM_ATTRIBUTE_USED __attribute__((__used__))
+#else
+#define LLVM_ATTRIBUTE_USED
+#endif
+
+#if __has_builtin(__builtin_unreachable) || LLVM_GNUC_PREREQ(4, 5, 0)
+#define LLVM_BUILTIN_UNREACHABLE __builtin_unreachable()
+#elif defined(_MSC_VER)
+#define LLVM_BUILTIN_UNREACHABLE __assume(false)
+#endif
+
+#if __has_attribute(noinline) || LLVM_GNUC_PREREQ(3, 4, 0)
+#define LLVM_ATTRIBUTE_NOINLINE __attribute__((noinline))
+#elif defined(_MSC_VER)
+#define LLVM_ATTRIBUTE_NOINLINE __declspec(noinline)
+#else
+#define LLVM_ATTRIBUTE_NOINLINE
+#endif
+
+#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
+#define LLVM_DUMP_METHOD LLVM_ATTRIBUTE_NOINLINE LLVM_ATTRIBUTE_USED
+#else
+#define LLVM_DUMP_METHOD LLVM_ATTRIBUTE_NOINLINE
+#endif
+
+#if __cplusplus > 201402L && __has_cpp_attribute(fallthrough)
+#define LLVM_FALLTHROUGH [[fallthrough]]
+#elif __has_cpp_attribute(gnu::fallthrough)
+#define LLVM_FALLTHROUGH [[gnu::fallthrough]]
+#elif !__cplusplus
+// Workaround for llvm.org/PR23435, since clang 3.6 and below emit a spurious
+// error when __has_cpp_attribute is given a scoped attribute in C mode.
+#define LLVM_FALLTHROUGH
+#elif __has_cpp_attribute(clang::fallthrough)
+#define LLVM_FALLTHROUGH [[clang::fallthrough]]
+#else
+#define LLVM_FALLTHROUGH
+#endif
+
+#endif
// file does not yet support:
// - C++ modules TS
+#include "Compiler.h"
+#include "StringView.h"
+#include "Utility.h"
#include "llvm/Demangle/Demangle.h"
-#include <algorithm>
#include <cassert>
#include <cctype>
#include <cstdio>
#include <numeric>
#include <vector>
-#ifdef _MSC_VER
-// snprintf is implemented in VS 2015
-#if _MSC_VER < 1900
-#define snprintf _snprintf_s
-#endif
-#endif
-
-// A variety of feature test macros copied from include/llvm/Support/Compiler.h
-#ifndef __has_feature
-#define __has_feature(x) 0
-#endif
-
-#ifndef __has_cpp_attribute
-#define __has_cpp_attribute(x) 0
-#endif
-
-#ifndef __has_attribute
-#define __has_attribute(x) 0
-#endif
-
-#ifndef __has_builtin
-#define __has_builtin(x) 0
-#endif
-
-#ifndef LLVM_GNUC_PREREQ
-#if defined(__GNUC__) && defined(__GNUC_MINOR__) && defined(__GNUC_PATCHLEVEL__)
-#define LLVM_GNUC_PREREQ(maj, min, patch) \
- ((__GNUC__ << 20) + (__GNUC_MINOR__ << 10) + __GNUC_PATCHLEVEL__ >= \
- ((maj) << 20) + ((min) << 10) + (patch))
-#elif defined(__GNUC__) && defined(__GNUC_MINOR__)
-#define LLVM_GNUC_PREREQ(maj, min, patch) \
- ((__GNUC__ << 20) + (__GNUC_MINOR__ << 10) >= ((maj) << 20) + ((min) << 10))
-#else
-#define LLVM_GNUC_PREREQ(maj, min, patch) 0
-#endif
-#endif
-
-#if __has_attribute(used) || LLVM_GNUC_PREREQ(3, 1, 0)
-#define LLVM_ATTRIBUTE_USED __attribute__((__used__))
-#else
-#define LLVM_ATTRIBUTE_USED
-#endif
-
-#if __has_builtin(__builtin_unreachable) || LLVM_GNUC_PREREQ(4, 5, 0)
-#define LLVM_BUILTIN_UNREACHABLE __builtin_unreachable()
-#elif defined(_MSC_VER)
-#define LLVM_BUILTIN_UNREACHABLE __assume(false)
-#endif
-
-#if __has_attribute(noinline) || LLVM_GNUC_PREREQ(3, 4, 0)
-#define LLVM_ATTRIBUTE_NOINLINE __attribute__((noinline))
-#elif defined(_MSC_VER)
-#define LLVM_ATTRIBUTE_NOINLINE __declspec(noinline)
-#else
-#define LLVM_ATTRIBUTE_NOINLINE
-#endif
-
-#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
-#define LLVM_DUMP_METHOD LLVM_ATTRIBUTE_NOINLINE LLVM_ATTRIBUTE_USED
-#else
-#define LLVM_DUMP_METHOD LLVM_ATTRIBUTE_NOINLINE
-#endif
-
-#if __cplusplus > 201402L && __has_cpp_attribute(fallthrough)
-#define LLVM_FALLTHROUGH [[fallthrough]]
-#elif __has_cpp_attribute(gnu::fallthrough)
-#define LLVM_FALLTHROUGH [[gnu::fallthrough]]
-#elif !__cplusplus
-// Workaround for llvm.org/PR23435, since clang 3.6 and below emit a spurious
-// error when __has_cpp_attribute is given a scoped attribute in C mode.
-#define LLVM_FALLTHROUGH
-#elif __has_cpp_attribute(clang::fallthrough)
-#define LLVM_FALLTHROUGH [[clang::fallthrough]]
-#else
-#define LLVM_FALLTHROUGH
-#endif
namespace {
-class StringView {
- const char *First;
- const char *Last;
-
-public:
- template <size_t N>
- StringView(const char (&Str)[N]) : First(Str), Last(Str + N - 1) {}
- StringView(const char *First_, const char *Last_) : First(First_), Last(Last_) {}
- StringView() : First(nullptr), Last(nullptr) {}
-
- StringView substr(size_t From, size_t To) {
- if (To >= size())
- To = size() - 1;
- if (From >= size())
- From = size() - 1;
- return StringView(First + From, First + To);
- }
-
- StringView dropFront(size_t N) const {
- if (N >= size())
- N = size() - 1;
- return StringView(First + N, Last);
- }
-
- bool startsWith(StringView Str) const {
- if (Str.size() > size())
- return false;
- return std::equal(Str.begin(), Str.end(), begin());
- }
-
- const char &operator[](size_t Idx) const { return *(begin() + Idx); }
-
- const char *begin() const { return First; }
- const char *end() const { return Last; }
- size_t size() const { return static_cast<size_t>(Last - First); }
- bool empty() const { return First == Last; }
-};
-
-bool operator==(const StringView &LHS, const StringView &RHS) {
- return LHS.size() == RHS.size() &&
- std::equal(LHS.begin(), LHS.end(), RHS.begin());
-}
-
-// Stream that AST nodes write their string representation into after the AST
-// has been parsed.
-class OutputStream {
- char *Buffer;
- size_t CurrentPosition;
- size_t BufferCapacity;
-
- // Ensure there is at least n more positions in buffer.
- void grow(size_t N) {
- if (N + CurrentPosition >= BufferCapacity) {
- BufferCapacity *= 2;
- if (BufferCapacity < N + CurrentPosition)
- BufferCapacity = N + CurrentPosition;
- Buffer = static_cast<char *>(std::realloc(Buffer, BufferCapacity));
- }
- }
-
-public:
- OutputStream(char *StartBuf, size_t Size)
- : Buffer(StartBuf), CurrentPosition(0), BufferCapacity(Size) {}
- OutputStream() = default;
- void reset(char *Buffer_, size_t BufferCapacity_) {
- CurrentPosition = 0;
- Buffer = Buffer_;
- BufferCapacity = BufferCapacity_;
- }
-
- /// If a ParameterPackExpansion (or similar type) is encountered, the offset
- /// into the pack that we're currently printing.
- unsigned CurrentPackIndex = std::numeric_limits<unsigned>::max();
- unsigned CurrentPackMax = std::numeric_limits<unsigned>::max();
-
- OutputStream &operator+=(StringView R) {
- size_t Size = R.size();
- if (Size == 0)
- return *this;
- grow(Size);
- memmove(Buffer + CurrentPosition, R.begin(), Size);
- CurrentPosition += Size;
- return *this;
- }
-
- OutputStream &operator+=(char C) {
- grow(1);
- Buffer[CurrentPosition++] = C;
- return *this;
- }
-
- size_t getCurrentPosition() const { return CurrentPosition; }
- void setCurrentPosition(size_t NewPos) { CurrentPosition = NewPos; }
-
- char back() const {
- return CurrentPosition ? Buffer[CurrentPosition - 1] : '\0';
- }
-
- bool empty() const { return CurrentPosition == 0; }
-
- char *getBuffer() { return Buffer; }
- char *getBufferEnd() { return Buffer + CurrentPosition - 1; }
- size_t getBufferCapacity() { return BufferCapacity; }
-};
-
-template <class T>
-class SwapAndRestore {
- T &Restore;
- T OriginalValue;
-public:
- SwapAndRestore(T& Restore_, T NewVal)
- : Restore(Restore_), OriginalValue(Restore) {
- Restore = std::move(NewVal);
- }
- ~SwapAndRestore() { Restore = std::move(OriginalValue); }
-
- SwapAndRestore(const SwapAndRestore &) = delete;
- SwapAndRestore &operator=(const SwapAndRestore &) = delete;
-};
// Base class of all AST nodes. The AST is built by the parser, then is
// traversed by the printLeft/Right functions to produce a demangled string.
// <unresolved-name>
// extension ::= srN <unresolved-type> [<template-args>] <unresolved-qualifier-level>* E <base-unresolved-name>
// ::= [gs] <base-unresolved-name> # x or (with "gs") ::x
-// ::= [gs] sr <unresolved-qualifier-level>+ E <base-unresolved-name>
+// ::= [gs] sr <unresolved-qualifier-level>+ E <base-unresolved-name>
// # A::x, N::y, A<T>::z; "gs" means leading "::"
// ::= sr <unresolved-type> <base-unresolved-name> # T::x / decltype(p)::x
// extension ::= sr <unresolved-type> <template-args> <base-unresolved-name>
return SoFar;
}
- // [gs] sr <unresolved-qualifier-level>+ E <base-unresolved-name>
+ // [gs] sr <unresolved-qualifier-level>+ E <base-unresolved-name>
if (std::isdigit(look())) {
do {
Node *Qual = parseSimpleId();
--- /dev/null
+//===--- StringView.h -------------------------------------------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//
+// This file contains a limited version of LLVM's StringView class. It is
+// copied here so that LLVMDemangle need not take a dependency on LLVMSupport.
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_DEMANGLE_STRINGVIEW_H
+#define LLVM_DEMANGLE_STRINGVIEW_H
+
+#include <algorithm>
+
+class StringView {
+ const char *First;
+ const char *Last;
+
+public:
+ template <size_t N>
+ StringView(const char (&Str)[N]) : First(Str), Last(Str + N - 1) {}
+ StringView(const char *First_, const char *Last_)
+ : First(First_), Last(Last_) {}
+ StringView() : First(nullptr), Last(nullptr) {}
+
+ StringView substr(size_t From, size_t To) {
+ if (To >= size())
+ To = size() - 1;
+ if (From >= size())
+ From = size() - 1;
+ return StringView(First + From, First + To);
+ }
+
+ StringView dropFront(size_t N) const {
+ if (N >= size())
+ N = size() - 1;
+ return StringView(First + N, Last);
+ }
+
+ bool startsWith(StringView Str) const {
+ if (Str.size() > size())
+ return false;
+ return std::equal(Str.begin(), Str.end(), begin());
+ }
+
+ const char &operator[](size_t Idx) const { return *(begin() + Idx); }
+
+ const char *begin() const { return First; }
+ const char *end() const { return Last; }
+ size_t size() const { return static_cast<size_t>(Last - First); }
+ bool empty() const { return First == Last; }
+};
+
+inline bool operator==(const StringView &LHS, const StringView &RHS) {
+ return LHS.size() == RHS.size() &&
+ std::equal(LHS.begin(), LHS.end(), RHS.begin());
+}
+
+#endif
--- /dev/null
+//===--- Utility.h ----------------------------------------------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//
+// This file contains several utility classes used by the demangle library.
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_DEMANGLE_UTILITY_H
+#define LLVM_DEMANGLE_UTILITY_H
+
+#include <cstring>
+
+// Stream that AST nodes write their string representation into after the AST
+// has been parsed.
+class OutputStream {
+ char *Buffer;
+ size_t CurrentPosition;
+ size_t BufferCapacity;
+
+ // Ensure there is at least n more positions in buffer.
+ void grow(size_t N) {
+ if (N + CurrentPosition >= BufferCapacity) {
+ BufferCapacity *= 2;
+ if (BufferCapacity < N + CurrentPosition)
+ BufferCapacity = N + CurrentPosition;
+ Buffer = static_cast<char *>(std::realloc(Buffer, BufferCapacity));
+ }
+ }
+
+public:
+ OutputStream(char *StartBuf, size_t Size)
+ : Buffer(StartBuf), CurrentPosition(0), BufferCapacity(Size) {}
+ OutputStream() = default;
+ void reset(char *Buffer_, size_t BufferCapacity_) {
+ CurrentPosition = 0;
+ Buffer = Buffer_;
+ BufferCapacity = BufferCapacity_;
+ }
+
+ /// If a ParameterPackExpansion (or similar type) is encountered, the offset
+ /// into the pack that we're currently printing.
+ unsigned CurrentPackIndex = std::numeric_limits<unsigned>::max();
+ unsigned CurrentPackMax = std::numeric_limits<unsigned>::max();
+
+ OutputStream &operator+=(StringView R) {
+ size_t Size = R.size();
+ if (Size == 0)
+ return *this;
+ grow(Size);
+ std::memmove(Buffer + CurrentPosition, R.begin(), Size);
+ CurrentPosition += Size;
+ return *this;
+ }
+
+ OutputStream &operator+=(char C) {
+ grow(1);
+ Buffer[CurrentPosition++] = C;
+ return *this;
+ }
+
+ size_t getCurrentPosition() const { return CurrentPosition; }
+ void setCurrentPosition(size_t NewPos) { CurrentPosition = NewPos; }
+
+ char back() const {
+ return CurrentPosition ? Buffer[CurrentPosition - 1] : '\0';
+ }
+
+ bool empty() const { return CurrentPosition == 0; }
+
+ char *getBuffer() { return Buffer; }
+ char *getBufferEnd() { return Buffer + CurrentPosition - 1; }
+ size_t getBufferCapacity() { return BufferCapacity; }
+};
+
+template <class T> class SwapAndRestore {
+ T &Restore;
+ T OriginalValue;
+
+public:
+ SwapAndRestore(T &Restore_, T NewVal)
+ : Restore(Restore_), OriginalValue(Restore) {
+ Restore = std::move(NewVal);
+ }
+ ~SwapAndRestore() { Restore = std::move(OriginalValue); }
+
+ SwapAndRestore(const SwapAndRestore &) = delete;
+ SwapAndRestore &operator=(const SwapAndRestore &) = delete;
+};
+
+#endif
projects / llvm / commitdiff