598 lines
17 KiB
C++
598 lines
17 KiB
C++
|
//===------------------------- ItaniumDemangle.cpp ------------------------===//
|
||
|
|
//
|
||
|
|
// 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
|
||
|
|
//
|
||
|
|
//===----------------------------------------------------------------------===//
|
||
|
|
|
||
|
|
// FIXME: (possibly) incomplete list of features that clang mangles that this
|
||
|
|
// file does not yet support:
|
||
|
|
// - C++ modules TS
|
||
|
|
|
||
|
|
#include "llvm/Demangle/Demangle.h"
|
||
|
|
#include "llvm/Demangle/ItaniumDemangle.h"
|
||
|
|
|
||
|
|
#include <cassert>
|
||
|
|
#include <cctype>
|
||
|
|
#include <cstdio>
|
||
|
|
#include <cstdlib>
|
||
|
|
#include <cstring>
|
||
|
|
#include <functional>
|
||
|
|
#include <utility>
|
||
|
|
|
||
|
|
using namespace llvm;
|
||
|
|
using namespace llvm::itanium_demangle;
|
||
|
|
|
||
|
|
constexpr const char *itanium_demangle::FloatData<float>::spec;
|
||
|
|
constexpr const char *itanium_demangle::FloatData<double>::spec;
|
||
|
|
constexpr const char *itanium_demangle::FloatData<long double>::spec;
|
||
|
|
|
||
|
|
// <discriminator> := _ <non-negative number> # when number < 10
|
||
|
|
// := __ <non-negative number> _ # when number >= 10
|
||
|
|
// extension := decimal-digit+ # at the end of string
|
||
|
|
const char *itanium_demangle::parse_discriminator(const char *first,
|
||
|
|
const char *last) {
|
||
|
|
// parse but ignore discriminator
|
||
|
|
if (first != last) {
|
||
|
|
if (*first == '_') {
|
||
|
|
const char *t1 = first + 1;
|
||
|
|
if (t1 != last) {
|
||
|
|
if (std::isdigit(*t1))
|
||
|
|
first = t1 + 1;
|
||
|
|
else if (*t1 == '_') {
|
||
|
|
for (++t1; t1 != last && std::isdigit(*t1); ++t1)
|
||
|
|
;
|
||
|
|
if (t1 != last && *t1 == '_')
|
||
|
|
first = t1 + 1;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
} else if (std::isdigit(*first)) {
|
||
|
|
const char *t1 = first + 1;
|
||
|
|
for (; t1 != last && std::isdigit(*t1); ++t1)
|
||
|
|
;
|
||
|
|
if (t1 == last)
|
||
|
|
first = last;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return first;
|
||
|
|
}
|
||
|
|
|
||
|
|
#ifndef NDEBUG
|
||
|
|
namespace {
|
||
|
|
struct DumpVisitor {
|
||
|
|
unsigned Depth = 0;
|
||
|
|
bool PendingNewline = false;
|
||
|
|
|
||
|
|
template<typename NodeT> static constexpr bool wantsNewline(const NodeT *) {
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
static bool wantsNewline(NodeArray A) { return !A.empty(); }
|
||
|
|
static constexpr bool wantsNewline(...) { return false; }
|
||
|
|
|
||
|
|
template<typename ...Ts> static bool anyWantNewline(Ts ...Vs) {
|
||
|
|
for (bool B : {wantsNewline(Vs)...})
|
||
|
|
if (B)
|
||
|
|
return true;
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
void printStr(const char *S) { fprintf(stderr, "%s", S); }
|
||
|
|
void print(std::string_view SV) {
|
||
|
|
fprintf(stderr, "\"%.*s\"", (int)SV.size(), SV.data());
|
||
|
|
}
|
||
|
|
void print(const Node *N) {
|
||
|
|
if (N)
|
||
|
|
N->visit(std::ref(*this));
|
||
|
|
else
|
||
|
|
printStr("<null>");
|
||
|
|
}
|
||
|
|
void print(NodeArray A) {
|
||
|
|
++Depth;
|
||
|
|
printStr("{");
|
||
|
|
bool First = true;
|
||
|
|
for (const Node *N : A) {
|
||
|
|
if (First)
|
||
|
|
print(N);
|
||
|
|
else
|
||
|
|
printWithComma(N);
|
||
|
|
First = false;
|
||
|
|
}
|
||
|
|
printStr("}");
|
||
|
|
--Depth;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Overload used when T is exactly 'bool', not merely convertible to 'bool'.
|
||
|
|
void print(bool B) { printStr(B ? "true" : "false"); }
|
||
|
|
|
||
|
|
template <class T> std::enable_if_t<std::is_unsigned<T>::value> print(T N) {
|
||
|
|
fprintf(stderr, "%llu", (unsigned long long)N);
|
||
|
|
}
|
||
|
|
|
||
|
|
template <class T> std::enable_if_t<std::is_signed<T>::value> print(T N) {
|
||
|
|
fprintf(stderr, "%lld", (long long)N);
|
||
|
|
}
|
||
|
|
|
||
|
|
void print(ReferenceKind RK) {
|
||
|
|
switch (RK) {
|
||
|
|
case ReferenceKind::LValue:
|
||
|
|
return printStr("ReferenceKind::LValue");
|
||
|
|
case ReferenceKind::RValue:
|
||
|
|
return printStr("ReferenceKind::RValue");
|
||
|
|
}
|
||
|
|
}
|
||
|
|
void print(FunctionRefQual RQ) {
|
||
|
|
switch (RQ) {
|
||
|
|
case FunctionRefQual::FrefQualNone:
|
||
|
|
return printStr("FunctionRefQual::FrefQualNone");
|
||
|
|
case FunctionRefQual::FrefQualLValue:
|
||
|
|
return printStr("FunctionRefQual::FrefQualLValue");
|
||
|
|
case FunctionRefQual::FrefQualRValue:
|
||
|
|
return printStr("FunctionRefQual::FrefQualRValue");
|
||
|
|
}
|
||
|
|
}
|
||
|
|
void print(Qualifiers Qs) {
|
||
|
|
if (!Qs) return printStr("QualNone");
|
||
|
|
struct QualName { Qualifiers Q; const char *Name; } Names[] = {
|
||
|
|
{QualConst, "QualConst"},
|
||
|
|
{QualVolatile, "QualVolatile"},
|
||
|
|
{QualRestrict, "QualRestrict"},
|
||
|
|
};
|
||
|
|
for (QualName Name : Names) {
|
||
|
|
if (Qs & Name.Q) {
|
||
|
|
printStr(Name.Name);
|
||
|
|
Qs = Qualifiers(Qs & ~Name.Q);
|
||
|
|
if (Qs) printStr(" | ");
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
void print(SpecialSubKind SSK) {
|
||
|
|
switch (SSK) {
|
||
|
|
case SpecialSubKind::allocator:
|
||
|
|
return printStr("SpecialSubKind::allocator");
|
||
|
|
case SpecialSubKind::basic_string:
|
||
|
|
return printStr("SpecialSubKind::basic_string");
|
||
|
|
case SpecialSubKind::string:
|
||
|
|
return printStr("SpecialSubKind::string");
|
||
|
|
case SpecialSubKind::istream:
|
||
|
|
return printStr("SpecialSubKind::istream");
|
||
|
|
case SpecialSubKind::ostream:
|
||
|
|
return printStr("SpecialSubKind::ostream");
|
||
|
|
case SpecialSubKind::iostream:
|
||
|
|
return printStr("SpecialSubKind::iostream");
|
||
|
|
}
|
||
|
|
}
|
||
|
|
void print(TemplateParamKind TPK) {
|
||
|
|
switch (TPK) {
|
||
|
|
case TemplateParamKind::Type:
|
||
|
|
return printStr("TemplateParamKind::Type");
|
||
|
|
case TemplateParamKind::NonType:
|
||
|
|
return printStr("TemplateParamKind::NonType");
|
||
|
|
case TemplateParamKind::Template:
|
||
|
|
return printStr("TemplateParamKind::Template");
|
||
|
|
}
|
||
|
|
}
|
||
|
|
void print(Node::Prec P) {
|
||
|
|
switch (P) {
|
||
|
|
case Node::Prec::Primary:
|
||
|
|
return printStr("Node::Prec::Primary");
|
||
|
|
case Node::Prec::Postfix:
|
||
|
|
return printStr("Node::Prec::Postfix");
|
||
|
|
case Node::Prec::Unary:
|
||
|
|
return printStr("Node::Prec::Unary");
|
||
|
|
case Node::Prec::Cast:
|
||
|
|
return printStr("Node::Prec::Cast");
|
||
|
|
case Node::Prec::PtrMem:
|
||
|
|
return printStr("Node::Prec::PtrMem");
|
||
|
|
case Node::Prec::Multiplicative:
|
||
|
|
return printStr("Node::Prec::Multiplicative");
|
||
|
|
case Node::Prec::Additive:
|
||
|
|
return printStr("Node::Prec::Additive");
|
||
|
|
case Node::Prec::Shift:
|
||
|
|
return printStr("Node::Prec::Shift");
|
||
|
|
case Node::Prec::Spaceship:
|
||
|
|
return printStr("Node::Prec::Spaceship");
|
||
|
|
case Node::Prec::Relational:
|
||
|
|
return printStr("Node::Prec::Relational");
|
||
|
|
case Node::Prec::Equality:
|
||
|
|
return printStr("Node::Prec::Equality");
|
||
|
|
case Node::Prec::And:
|
||
|
|
return printStr("Node::Prec::And");
|
||
|
|
case Node::Prec::Xor:
|
||
|
|
return printStr("Node::Prec::Xor");
|
||
|
|
case Node::Prec::Ior:
|
||
|
|
return printStr("Node::Prec::Ior");
|
||
|
|
case Node::Prec::AndIf:
|
||
|
|
return printStr("Node::Prec::AndIf");
|
||
|
|
case Node::Prec::OrIf:
|
||
|
|
return printStr("Node::Prec::OrIf");
|
||
|
|
case Node::Prec::Conditional:
|
||
|
|
return printStr("Node::Prec::Conditional");
|
||
|
|
case Node::Prec::Assign:
|
||
|
|
return printStr("Node::Prec::Assign");
|
||
|
|
case Node::Prec::Comma:
|
||
|
|
return printStr("Node::Prec::Comma");
|
||
|
|
case Node::Prec::Default:
|
||
|
|
return printStr("Node::Prec::Default");
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void newLine() {
|
||
|
|
printStr("\n");
|
||
|
|
for (unsigned I = 0; I != Depth; ++I)
|
||
|
|
printStr(" ");
|
||
|
|
PendingNewline = false;
|
||
|
|
}
|
||
|
|
|
||
|
|
template<typename T> void printWithPendingNewline(T V) {
|
||
|
|
print(V);
|
||
|
|
if (wantsNewline(V))
|
||
|
|
PendingNewline = true;
|
||
|
|
}
|
||
|
|
|
||
|
|
template<typename T> void printWithComma(T V) {
|
||
|
|
if (PendingNewline || wantsNewline(V)) {
|
||
|
|
printStr(",");
|
||
|
|
newLine();
|
||
|
|
} else {
|
||
|
|
printStr(", ");
|
||
|
|
}
|
||
|
|
|
||
|
|
printWithPendingNewline(V);
|
||
|
|
}
|
||
|
|
|
||
|
|
struct CtorArgPrinter {
|
||
|
|
DumpVisitor &Visitor;
|
||
|
|
|
||
|
|
template<typename T, typename ...Rest> void operator()(T V, Rest ...Vs) {
|
||
|
|
if (Visitor.anyWantNewline(V, Vs...))
|
||
|
|
Visitor.newLine();
|
||
|
|
Visitor.printWithPendingNewline(V);
|
||
|
|
int PrintInOrder[] = { (Visitor.printWithComma(Vs), 0)..., 0 };
|
||
|
|
(void)PrintInOrder;
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
template<typename NodeT> void operator()(const NodeT *Node) {
|
||
|
|
Depth += 2;
|
||
|
|
fprintf(stderr, "%s(", itanium_demangle::NodeKind<NodeT>::name());
|
||
|
|
Node->match(CtorArgPrinter{*this});
|
||
|
|
fprintf(stderr, ")");
|
||
|
|
Depth -= 2;
|
||
|
|
}
|
||
|
|
|
||
|
|
void operator()(const ForwardTemplateReference *Node) {
|
||
|
|
Depth += 2;
|
||
|
|
fprintf(stderr, "ForwardTemplateReference(");
|
||
|
|
if (Node->Ref && !Node->Printing) {
|
||
|
|
Node->Printing = true;
|
||
|
|
CtorArgPrinter{*this}(Node->Ref);
|
||
|
|
Node->Printing = false;
|
||
|
|
} else {
|
||
|
|
CtorArgPrinter{*this}(Node->Index);
|
||
|
|
}
|
||
|
|
fprintf(stderr, ")");
|
||
|
|
Depth -= 2;
|
||
|
|
}
|
||
|
|
};
|
||
|
|
}
|
||
|
|
|
||
|
|
void itanium_demangle::Node::dump() const {
|
||
|
|
DumpVisitor V;
|
||
|
|
visit(std::ref(V));
|
||
|
|
V.newLine();
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
namespace {
|
||
|
|
class BumpPointerAllocator {
|
||
|
|
struct BlockMeta {
|
||
|
|
BlockMeta* Next;
|
||
|
|
size_t Current;
|
||
|
|
};
|
||
|
|
|
||
|
|
static constexpr size_t AllocSize = 4096;
|
||
|
|
static constexpr size_t UsableAllocSize = AllocSize - sizeof(BlockMeta);
|
||
|
|
|
||
|
|
alignas(long double) char InitialBuffer[AllocSize];
|
||
|
|
BlockMeta* BlockList = nullptr;
|
||
|
|
|
||
|
|
void grow() {
|
||
|
|
char* NewMeta = static_cast<char *>(std::malloc(AllocSize));
|
||
|
|
if (NewMeta == nullptr)
|
||
|
|
std::terminate();
|
||
|
|
BlockList = new (NewMeta) BlockMeta{BlockList, 0};
|
||
|
|
}
|
||
|
|
|
||
|
|
void* allocateMassive(size_t NBytes) {
|
||
|
|
NBytes += sizeof(BlockMeta);
|
||
|
|
BlockMeta* NewMeta = reinterpret_cast<BlockMeta*>(std::malloc(NBytes));
|
||
|
|
if (NewMeta == nullptr)
|
||
|
|
std::terminate();
|
||
|
|
BlockList->Next = new (NewMeta) BlockMeta{BlockList->Next, 0};
|
||
|
|
return static_cast<void*>(NewMeta + 1);
|
||
|
|
}
|
||
|
|
|
||
|
|
public:
|
||
|
|
BumpPointerAllocator()
|
||
|
|
: BlockList(new (InitialBuffer) BlockMeta{nullptr, 0}) {}
|
||
|
|
|
||
|
|
void* allocate(size_t N) {
|
||
|
|
N = (N + 15u) & ~15u;
|
||
|
|
if (N + BlockList->Current >= UsableAllocSize) {
|
||
|
|
if (N > UsableAllocSize)
|
||
|
|
return allocateMassive(N);
|
||
|
|
grow();
|
||
|
|
}
|
||
|
|
BlockList->Current += N;
|
||
|
|
return static_cast<void*>(reinterpret_cast<char*>(BlockList + 1) +
|
||
|
|
BlockList->Current - N);
|
||
|
|
}
|
||
|
|
|
||
|
|
void reset() {
|
||
|
|
while (BlockList) {
|
||
|
|
BlockMeta* Tmp = BlockList;
|
||
|
|
BlockList = BlockList->Next;
|
||
|
|
if (reinterpret_cast<char*>(Tmp) != InitialBuffer)
|
||
|
|
std::free(Tmp);
|
||
|
|
}
|
||
|
|
BlockList = new (InitialBuffer) BlockMeta{nullptr, 0};
|
||
|
|
}
|
||
|
|
|
||
|
|
~BumpPointerAllocator() { reset(); }
|
||
|
|
};
|
||
|
|
|
||
|
|
class DefaultAllocator {
|
||
|
|
BumpPointerAllocator Alloc;
|
||
|
|
|
||
|
|
public:
|
||
|
|
void reset() { Alloc.reset(); }
|
||
|
|
|
||
|
|
template<typename T, typename ...Args> T *makeNode(Args &&...args) {
|
||
|
|
return new (Alloc.allocate(sizeof(T)))
|
||
|
|
T(std::forward<Args>(args)...);
|
||
|
|
}
|
||
|
|
|
||
|
|
void *allocateNodeArray(size_t sz) {
|
||
|
|
return Alloc.allocate(sizeof(Node *) * sz);
|
||
|
|
}
|
||
|
|
};
|
||
|
|
} // unnamed namespace
|
||
|
|
|
||
|
|
//===----------------------------------------------------------------------===//
|
||
|
|
// Code beyond this point should not be synchronized with libc++abi.
|
||
|
|
//===----------------------------------------------------------------------===//
|
||
|
|
|
||
|
|
using Demangler = itanium_demangle::ManglingParser<DefaultAllocator>;
|
||
|
|
|
||
|
|
char *llvm::itaniumDemangle(std::string_view MangledName) {
|
||
|
|
if (MangledName.empty())
|
||
|
|
return nullptr;
|
||
|
|
|
||
|
|
Demangler Parser(MangledName.data(),
|
||
|
|
MangledName.data() + MangledName.length());
|
||
|
|
Node *AST = Parser.parse();
|
||
|
|
if (!AST)
|
||
|
|
return nullptr;
|
||
|
|
|
||
|
|
OutputBuffer OB;
|
||
|
|
assert(Parser.ForwardTemplateRefs.empty());
|
||
|
|
AST->print(OB);
|
||
|
|
OB += '\0';
|
||
|
|
return OB.getBuffer();
|
||
|
|
}
|
||
|
|
|
||
|
|
ItaniumPartialDemangler::ItaniumPartialDemangler()
|
||
|
|
: RootNode(nullptr), Context(new Demangler{nullptr, nullptr}) {}
|
||
|
|
|
||
|
|
ItaniumPartialDemangler::~ItaniumPartialDemangler() {
|
||
|
|
delete static_cast<Demangler *>(Context);
|
||
|
|
}
|
||
|
|
|
||
|
|
ItaniumPartialDemangler::ItaniumPartialDemangler(
|
||
|
|
ItaniumPartialDemangler &&Other)
|
||
|
|
: RootNode(Other.RootNode), Context(Other.Context) {
|
||
|
|
Other.Context = Other.RootNode = nullptr;
|
||
|
|
}
|
||
|
|
|
||
|
|
ItaniumPartialDemangler &ItaniumPartialDemangler::
|
||
|
|
operator=(ItaniumPartialDemangler &&Other) {
|
||
|
|
std::swap(RootNode, Other.RootNode);
|
||
|
|
std::swap(Context, Other.Context);
|
||
|
|
return *this;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Demangle MangledName into an AST, storing it into this->RootNode.
|
||
|
|
bool ItaniumPartialDemangler::partialDemangle(const char *MangledName) {
|
||
|
|
Demangler *Parser = static_cast<Demangler *>(Context);
|
||
|
|
size_t Len = std::strlen(MangledName);
|
||
|
|
Parser->reset(MangledName, MangledName + Len);
|
||
|
|
RootNode = Parser->parse();
|
||
|
|
return RootNode == nullptr;
|
||
|
|
}
|
||
|
|
|
||
|
|
static char *printNode(const Node *RootNode, char *Buf, size_t *N) {
|
||
|
|
OutputBuffer OB(Buf, N);
|
||
|
|
RootNode->print(OB);
|
||
|
|
OB += '\0';
|
||
|
|
if (N != nullptr)
|
||
|
|
*N = OB.getCurrentPosition();
|
||
|
|
return OB.getBuffer();
|
||
|
|
}
|
||
|
|
|
||
|
|
char *ItaniumPartialDemangler::getFunctionBaseName(char *Buf, size_t *N) const {
|
||
|
|
if (!isFunction())
|
||
|
|
return nullptr;
|
||
|
|
|
||
|
|
const Node *Name = static_cast<const FunctionEncoding *>(RootNode)->getName();
|
||
|
|
|
||
|
|
while (true) {
|
||
|
|
switch (Name->getKind()) {
|
||
|
|
case Node::KAbiTagAttr:
|
||
|
|
Name = static_cast<const AbiTagAttr *>(Name)->Base;
|
||
|
|
continue;
|
||
|
|
case Node::KModuleEntity:
|
||
|
|
Name = static_cast<const ModuleEntity *>(Name)->Name;
|
||
|
|
continue;
|
||
|
|
case Node::KNestedName:
|
||
|
|
Name = static_cast<const NestedName *>(Name)->Name;
|
||
|
|
continue;
|
||
|
|
case Node::KLocalName:
|
||
|
|
Name = static_cast<const LocalName *>(Name)->Entity;
|
||
|
|
continue;
|
||
|
|
case Node::KNameWithTemplateArgs:
|
||
|
|
Name = static_cast<const NameWithTemplateArgs *>(Name)->Name;
|
||
|
|
continue;
|
||
|
|
default:
|
||
|
|
return printNode(Name, Buf, N);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
char *ItaniumPartialDemangler::getFunctionDeclContextName(char *Buf,
|
||
|
|
size_t *N) const {
|
||
|
|
if (!isFunction())
|
||
|
|
return nullptr;
|
||
|
|
const Node *Name = static_cast<const FunctionEncoding *>(RootNode)->getName();
|
||
|
|
|
||
|
|
OutputBuffer OB(Buf, N);
|
||
|
|
|
||
|
|
KeepGoingLocalFunction:
|
||
|
|
while (true) {
|
||
|
|
if (Name->getKind() == Node::KAbiTagAttr) {
|
||
|
|
Name = static_cast<const AbiTagAttr *>(Name)->Base;
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
if (Name->getKind() == Node::KNameWithTemplateArgs) {
|
||
|
|
Name = static_cast<const NameWithTemplateArgs *>(Name)->Name;
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (Name->getKind() == Node::KModuleEntity)
|
||
|
|
Name = static_cast<const ModuleEntity *>(Name)->Name;
|
||
|
|
|
||
|
|
switch (Name->getKind()) {
|
||
|
|
case Node::KNestedName:
|
||
|
|
static_cast<const NestedName *>(Name)->Qual->print(OB);
|
||
|
|
break;
|
||
|
|
case Node::KLocalName: {
|
||
|
|
auto *LN = static_cast<const LocalName *>(Name);
|
||
|
|
LN->Encoding->print(OB);
|
||
|
|
OB += "::";
|
||
|
|
Name = LN->Entity;
|
||
|
|
goto KeepGoingLocalFunction;
|
||
|
|
}
|
||
|
|
default:
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
OB += '\0';
|
||
|
|
if (N != nullptr)
|
||
|
|
*N = OB.getCurrentPosition();
|
||
|
|
return OB.getBuffer();
|
||
|
|
}
|
||
|
|
|
||
|
|
char *ItaniumPartialDemangler::getFunctionName(char *Buf, size_t *N) const {
|
||
|
|
if (!isFunction())
|
||
|
|
return nullptr;
|
||
|
|
auto *Name = static_cast<FunctionEncoding *>(RootNode)->getName();
|
||
|
|
return printNode(Name, Buf, N);
|
||
|
|
}
|
||
|
|
|
||
|
|
char *ItaniumPartialDemangler::getFunctionParameters(char *Buf,
|
||
|
|
size_t *N) const {
|
||
|
|
if (!isFunction())
|
||
|
|
return nullptr;
|
||
|
|
NodeArray Params = static_cast<FunctionEncoding *>(RootNode)->getParams();
|
||
|
|
|
||
|
|
OutputBuffer OB(Buf, N);
|
||
|
|
|
||
|
|
OB += '(';
|
||
|
|
Params.printWithComma(OB);
|
||
|
|
OB += ')';
|
||
|
|
OB += '\0';
|
||
|
|
if (N != nullptr)
|
||
|
|
*N = OB.getCurrentPosition();
|
||
|
|
return OB.getBuffer();
|
||
|
|
}
|
||
|
|
|
||
|
|
char *ItaniumPartialDemangler::getFunctionReturnType(
|
||
|
|
char *Buf, size_t *N) const {
|
||
|
|
if (!isFunction())
|
||
|
|
return nullptr;
|
||
|
|
|
||
|
|
OutputBuffer OB(Buf, N);
|
||
|
|
|
||
|
|
if (const Node *Ret =
|
||
|
|
static_cast<const FunctionEncoding *>(RootNode)->getReturnType())
|
||
|
|
Ret->print(OB);
|
||
|
|
|
||
|
|
OB += '\0';
|
||
|
|
if (N != nullptr)
|
||
|
|
*N = OB.getCurrentPosition();
|
||
|
|
return OB.getBuffer();
|
||
|
|
}
|
||
|
|
|
||
|
|
char *ItaniumPartialDemangler::finishDemangle(char *Buf, size_t *N) const {
|
||
|
|
assert(RootNode != nullptr && "must call partialDemangle()");
|
||
|
|
return printNode(static_cast<Node *>(RootNode), Buf, N);
|
||
|
|
}
|
||
|
|
|
||
|
|
bool ItaniumPartialDemangler::hasFunctionQualifiers() const {
|
||
|
|
assert(RootNode != nullptr && "must call partialDemangle()");
|
||
|
|
if (!isFunction())
|
||
|
|
return false;
|
||
|
|
auto *E = static_cast<const FunctionEncoding *>(RootNode);
|
||
|
|
return E->getCVQuals() != QualNone || E->getRefQual() != FrefQualNone;
|
||
|
|
}
|
||
|
|
|
||
|
|
bool ItaniumPartialDemangler::isCtorOrDtor() const {
|
||
|
|
const Node *N = static_cast<const Node *>(RootNode);
|
||
|
|
while (N) {
|
||
|
|
switch (N->getKind()) {
|
||
|
|
default:
|
||
|
|
return false;
|
||
|
|
case Node::KCtorDtorName:
|
||
|
|
return true;
|
||
|
|
|
||
|
|
case Node::KAbiTagAttr:
|
||
|
|
N = static_cast<const AbiTagAttr *>(N)->Base;
|
||
|
|
break;
|
||
|
|
case Node::KFunctionEncoding:
|
||
|
|
N = static_cast<const FunctionEncoding *>(N)->getName();
|
||
|
|
break;
|
||
|
|
case Node::KLocalName:
|
||
|
|
N = static_cast<const LocalName *>(N)->Entity;
|
||
|
|
break;
|
||
|
|
case Node::KNameWithTemplateArgs:
|
||
|
|
N = static_cast<const NameWithTemplateArgs *>(N)->Name;
|
||
|
|
break;
|
||
|
|
case Node::KNestedName:
|
||
|
|
N = static_cast<const NestedName *>(N)->Name;
|
||
|
|
break;
|
||
|
|
case Node::KModuleEntity:
|
||
|
|
N = static_cast<const ModuleEntity *>(N)->Name;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
bool ItaniumPartialDemangler::isFunction() const {
|
||
|
|
assert(RootNode != nullptr && "must call partialDemangle()");
|
||
|
|
return static_cast<const Node *>(RootNode)->getKind() ==
|
||
|
|
Node::KFunctionEncoding;
|
||
|
|
}
|
||
|
|
|
||
|
|
bool ItaniumPartialDemangler::isSpecialName() const {
|
||
|
|
assert(RootNode != nullptr && "must call partialDemangle()");
|
||
|
|
auto K = static_cast<const Node *>(RootNode)->getKind();
|
||
|
|
return K == Node::KSpecialName || K == Node::KCtorVtableSpecialName;
|
||
|
|
}
|
||
|
|
|
||
|
|
bool ItaniumPartialDemangler::isData() const {
|
||
|
|
return !isFunction() && !isSpecialName();
|
||
|
|
}
|