53 lines
1.5 KiB
C++
53 lines
1.5 KiB
C++
#define HAVE_DECL_BASENAME 1
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#include "demangle.h"
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#include <cstring>
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#include <regex>
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#include <llvm/Config/llvm-config.h>
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#include <llvm/Demangle/Demangle.h>
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extern "C"
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char* msvc_demangle(const char* sym, int options)
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{
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auto mangled = sym;
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auto suffix = std::strchr(sym, '!');
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if (suffix != 0) {
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mangled = suffix + 1;
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}
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auto flags = llvm::MSDemangleFlags(llvm::MSDF_NoAccessSpecifier | llvm::MSDF_NoCallingConvention);
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if (!(options & DMGL_ANSI)) {
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/* TODO: Wait for LLVM's demangler to get a flag for this */;
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}
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//HACK: We should probably not do this on DMGL_AUTO, but the GNU C++
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// demangler also omits the return type even without
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// DMGL_RET_DROP...
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if ((options & (DMGL_RET_DROP | DMGL_AUTO))) {
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flags = llvm::MSDemangleFlags(flags | llvm::MSDF_NoReturnType);
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}
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#if LLVM_VERSION_MAJOR > 10
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auto demangled = llvm::microsoftDemangle(mangled, nullptr, nullptr, nullptr, nullptr, flags);
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#else
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auto demangled = llvm::microsoftDemangle(mangled, nullptr, nullptr, nullptr, flags);
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#endif
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if (demangled == nullptr) {
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return nullptr;
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}
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auto result = std::string(demangled);
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//TODO: Use OF_NoTagSpecifier (not currently available as a MSDF_* flag)
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result = std::regex_replace(result, std::regex("(class|struct|union|enum) "), "");
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result = std::regex_replace(result, std::regex(" (\\*|&)"), "$1");
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if (!(options & DMGL_PARAMS)) {
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result = std::regex_replace(result, std::regex(" \(.*\)"), "");
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}
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return strdup(result.c_str());
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}
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