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//===--- Demangle.h ---------------------------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-FileCopyrightText: Part of the LLVM Project
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_DEMANGLE_DEMANGLE_H
#define LLVM_DEMANGLE_DEMANGLE_H
#include <cstddef>
#include <string>
namespace llvm {
/// This is a llvm local version of __cxa_demangle. Other than the name and
/// being in the llvm namespace it is identical.
///
/// The mangled_name is demangled into buf and returned. If the buffer is not
/// large enough, realloc is used to expand it.
///
/// The *status will be set to a value from the following enumeration
enum : int {
demangle_unknown_error = -4,
demangle_invalid_args = -3,
demangle_invalid_mangled_name = -2,
demangle_memory_alloc_failure = -1,
demangle_success = 0,
};
char *itaniumDemangle(const char *mangled_name, char *buf, size_t *n,
int *status);
enum MSDemangleFlags {
MSDF_None = 0,
MSDF_DumpBackrefs = 1 << 0,
MSDF_NoAccessSpecifier = 1 << 1,
MSDF_NoCallingConvention = 1 << 2,
MSDF_NoReturnType = 1 << 3,
MSDF_NoMemberType = 1 << 4,
};
char *microsoftDemangle(const char *mangled_name, char *buf, size_t *n,
int *status, MSDemangleFlags Flags = MSDF_None);
/// "Partial" demangler. This supports demangling a string into an AST
/// (typically an intermediate stage in itaniumDemangle) and querying certain
/// properties or partially printing the demangled name.
struct ItaniumPartialDemangler {
ItaniumPartialDemangler();
ItaniumPartialDemangler(ItaniumPartialDemangler &&Other);
ItaniumPartialDemangler &operator=(ItaniumPartialDemangler &&Other);
/// Demangle into an AST. Subsequent calls to the rest of the member functions
/// implicitly operate on the AST this produces.
/// \return true on error, false otherwise
bool partialDemangle(const char *MangledName);
/// Just print the entire mangled name into Buf. Buf and N behave like the
/// second and third parameters to itaniumDemangle.
char *finishDemangle(char *Buf, size_t *N) const;
/// Get the base name of a function. This doesn't include trailing template
/// arguments, ie for "a::b<int>" this function returns "b".
char *getFunctionBaseName(char *Buf, size_t *N) const;
/// Get the context name for a function. For "a::b::c", this function returns
/// "a::b".
char *getFunctionDeclContextName(char *Buf, size_t *N) const;
/// Get the entire name of this function.
char *getFunctionName(char *Buf, size_t *N) const;
/// Get the parameters for this function.
char *getFunctionParameters(char *Buf, size_t *N) const;
char *getFunctionReturnType(char *Buf, size_t *N) const;
/// If this function has any any cv or reference qualifiers. These imply that
/// the function is a non-static member function.
bool hasFunctionQualifiers() const;
/// If this symbol describes a constructor or destructor.
bool isCtorOrDtor() const;
/// If this symbol describes a function.
bool isFunction() const;
/// If this symbol describes a variable.
bool isData() const;
/// If this symbol is a <special-name>. These are generally implicitly
/// generated by the implementation, such as vtables and typeinfo names.
bool isSpecialName() const;
~ItaniumPartialDemangler();
private:
void *RootNode;
void *Context;
};
} // namespace llvm
#endif
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