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