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Diffstat (limited to 'llvm/lib/Demangle/MicrosoftDemangle.cpp')
-rw-r--r--llvm/lib/Demangle/MicrosoftDemangle.cpp287
1 files changed, 155 insertions, 132 deletions
diff --git a/llvm/lib/Demangle/MicrosoftDemangle.cpp b/llvm/lib/Demangle/MicrosoftDemangle.cpp
index 248b748..4013de7 100644
--- a/llvm/lib/Demangle/MicrosoftDemangle.cpp
+++ b/llvm/lib/Demangle/MicrosoftDemangle.cpp
@@ -14,22 +14,23 @@
//===----------------------------------------------------------------------===//
#include "llvm/Demangle/MicrosoftDemangle.h"
-#include "llvm/Demangle/Demangle.h"
-#include "llvm/Demangle/MicrosoftDemangleNodes.h"
+#include "llvm/Demangle/Demangle.h"
#include "llvm/Demangle/DemangleConfig.h"
-#include "llvm/Demangle/StringView.h"
+#include "llvm/Demangle/MicrosoftDemangleNodes.h"
+#include "llvm/Demangle/StringViewExtras.h"
#include "llvm/Demangle/Utility.h"
#include <array>
#include <cctype>
#include <cstdio>
+#include <string_view>
#include <tuple>
using namespace llvm;
using namespace ms_demangle;
-static bool startsWithDigit(StringView S) {
+static bool startsWithDigit(std::string_view S) {
return !S.empty() && std::isdigit(S.front());
}
@@ -38,21 +39,21 @@ struct NodeList {
NodeList *Next = nullptr;
};
-static bool consumeFront(StringView &S, char C) {
- if (!S.startsWith(C))
+static bool consumeFront(std::string_view &S, char C) {
+ if (!llvm::itanium_demangle::starts_with(S, C))
return false;
S.remove_prefix(1);
return true;
}
-static bool consumeFront(StringView &S, StringView C) {
- if (!S.startsWith(C))
+static bool consumeFront(std::string_view &S, std::string_view C) {
+ if (!llvm::itanium_demangle::starts_with(S, C))
return false;
S.remove_prefix(C.size());
return true;
}
-static bool isMemberPointer(StringView MangledName, bool &Error) {
+static bool isMemberPointer(std::string_view MangledName, bool &Error) {
Error = false;
const char F = MangledName.front();
MangledName.remove_prefix(1);
@@ -118,7 +119,7 @@ static bool isMemberPointer(StringView MangledName, bool &Error) {
}
static SpecialIntrinsicKind
-consumeSpecialIntrinsicKind(StringView &MangledName) {
+consumeSpecialIntrinsicKind(std::string_view &MangledName) {
if (consumeFront(MangledName, "?_7"))
return SpecialIntrinsicKind::Vftable;
if (consumeFront(MangledName, "?_8"))
@@ -154,14 +155,14 @@ consumeSpecialIntrinsicKind(StringView &MangledName) {
return SpecialIntrinsicKind::None;
}
-static bool startsWithLocalScopePattern(StringView S) {
+static bool startsWithLocalScopePattern(std::string_view S) {
if (!consumeFront(S, '?'))
return false;
size_t End = S.find('?');
- if (End == StringView::npos)
+ if (End == std::string_view::npos)
return false;
- StringView Candidate = S.substr(0, End);
+ std::string_view Candidate = S.substr(0, End);
if (Candidate.empty())
return false;
@@ -193,7 +194,7 @@ static bool startsWithLocalScopePattern(StringView S) {
return true;
}
-static bool isTagType(StringView S) {
+static bool isTagType(std::string_view S) {
switch (S.front()) {
case 'T': // union
case 'U': // struct
@@ -204,10 +205,10 @@ static bool isTagType(StringView S) {
return false;
}
-static bool isCustomType(StringView S) { return S[0] == '?'; }
+static bool isCustomType(std::string_view S) { return S[0] == '?'; }
-static bool isPointerType(StringView S) {
- if (S.startsWith("$$Q")) // foo &&
+static bool isPointerType(std::string_view S) {
+ if (llvm::itanium_demangle::starts_with(S, "$$Q")) // foo &&
return true;
switch (S.front()) {
@@ -221,14 +222,15 @@ static bool isPointerType(StringView S) {
return false;
}
-static bool isArrayType(StringView S) { return S[0] == 'Y'; }
+static bool isArrayType(std::string_view S) { return S[0] == 'Y'; }
-static bool isFunctionType(StringView S) {
- return S.startsWith("$$A8@@") || S.startsWith("$$A6");
+static bool isFunctionType(std::string_view S) {
+ return llvm::itanium_demangle::starts_with(S, "$$A8@@") ||
+ llvm::itanium_demangle::starts_with(S, "$$A6");
}
static FunctionRefQualifier
-demangleFunctionRefQualifier(StringView &MangledName) {
+demangleFunctionRefQualifier(std::string_view &MangledName) {
if (consumeFront(MangledName, 'G'))
return FunctionRefQualifier::Reference;
else if (consumeFront(MangledName, 'H'))
@@ -237,7 +239,7 @@ demangleFunctionRefQualifier(StringView &MangledName) {
}
static std::pair<Qualifiers, PointerAffinity>
-demanglePointerCVQualifiers(StringView &MangledName) {
+demanglePointerCVQualifiers(std::string_view &MangledName) {
if (consumeFront(MangledName, "$$Q"))
return std::make_pair(Q_None, PointerAffinity::RValueReference);
@@ -261,18 +263,18 @@ demanglePointerCVQualifiers(StringView &MangledName) {
DEMANGLE_UNREACHABLE;
}
-StringView Demangler::copyString(StringView Borrowed) {
+std::string_view Demangler::copyString(std::string_view Borrowed) {
char *Stable = Arena.allocUnalignedBuffer(Borrowed.size());
// This is not a micro-optimization, it avoids UB, should Borrowed be an null
// buffer.
if (Borrowed.size())
- std::memcpy(Stable, Borrowed.begin(), Borrowed.size());
+ std::memcpy(Stable, &*Borrowed.begin(), Borrowed.size());
return {Stable, Borrowed.size()};
}
SpecialTableSymbolNode *
-Demangler::demangleSpecialTableSymbolNode(StringView &MangledName,
+Demangler::demangleSpecialTableSymbolNode(std::string_view &MangledName,
SpecialIntrinsicKind K) {
NamedIdentifierNode *NI = Arena.alloc<NamedIdentifierNode>();
switch (K) {
@@ -313,7 +315,8 @@ Demangler::demangleSpecialTableSymbolNode(StringView &MangledName,
}
LocalStaticGuardVariableNode *
-Demangler::demangleLocalStaticGuard(StringView &MangledName, bool IsThread) {
+Demangler::demangleLocalStaticGuard(std::string_view &MangledName,
+ bool IsThread) {
LocalStaticGuardIdentifierNode *LSGI =
Arena.alloc<LocalStaticGuardIdentifierNode>();
LSGI->IsThread = IsThread;
@@ -337,7 +340,7 @@ Demangler::demangleLocalStaticGuard(StringView &MangledName, bool IsThread) {
}
static NamedIdentifierNode *synthesizeNamedIdentifier(ArenaAllocator &Arena,
- StringView Name) {
+ std::string_view Name) {
NamedIdentifierNode *Id = Arena.alloc<NamedIdentifierNode>();
Id->Name = Name;
return Id;
@@ -354,22 +357,24 @@ static QualifiedNameNode *synthesizeQualifiedName(ArenaAllocator &Arena,
}
static QualifiedNameNode *synthesizeQualifiedName(ArenaAllocator &Arena,
- StringView Name) {
+ std::string_view Name) {
NamedIdentifierNode *Id = synthesizeNamedIdentifier(Arena, Name);
return synthesizeQualifiedName(Arena, Id);
}
static VariableSymbolNode *synthesizeVariable(ArenaAllocator &Arena,
TypeNode *Type,
- StringView VariableName) {
+ std::string_view VariableName) {
VariableSymbolNode *VSN = Arena.alloc<VariableSymbolNode>();
VSN->Type = Type;
VSN->Name = synthesizeQualifiedName(Arena, VariableName);
return VSN;
}
-VariableSymbolNode *Demangler::demangleUntypedVariable(
- ArenaAllocator &Arena, StringView &MangledName, StringView VariableName) {
+VariableSymbolNode *
+Demangler::demangleUntypedVariable(ArenaAllocator &Arena,
+ std::string_view &MangledName,
+ std::string_view VariableName) {
NamedIdentifierNode *NI = synthesizeNamedIdentifier(Arena, VariableName);
QualifiedNameNode *QN = demangleNameScopeChain(MangledName, NI);
VariableSymbolNode *VSN = Arena.alloc<VariableSymbolNode>();
@@ -383,7 +388,7 @@ VariableSymbolNode *Demangler::demangleUntypedVariable(
VariableSymbolNode *
Demangler::demangleRttiBaseClassDescriptorNode(ArenaAllocator &Arena,
- StringView &MangledName) {
+ std::string_view &MangledName) {
RttiBaseClassDescriptorNode *RBCDN =
Arena.alloc<RttiBaseClassDescriptorNode>();
RBCDN->NVOffset = demangleUnsigned(MangledName);
@@ -399,8 +404,9 @@ Demangler::demangleRttiBaseClassDescriptorNode(ArenaAllocator &Arena,
return VSN;
}
-FunctionSymbolNode *Demangler::demangleInitFiniStub(StringView &MangledName,
- bool IsDestructor) {
+FunctionSymbolNode *
+Demangler::demangleInitFiniStub(std::string_view &MangledName,
+ bool IsDestructor) {
DynamicStructorIdentifierNode *DSIN =
Arena.alloc<DynamicStructorIdentifierNode>();
DSIN->IsDestructor = IsDestructor;
@@ -448,7 +454,7 @@ FunctionSymbolNode *Demangler::demangleInitFiniStub(StringView &MangledName,
return FSN;
}
-SymbolNode *Demangler::demangleSpecialIntrinsic(StringView &MangledName) {
+SymbolNode *Demangler::demangleSpecialIntrinsic(std::string_view &MangledName) {
SpecialIntrinsicKind SIK = consumeSpecialIntrinsicKind(MangledName);
switch (SIK) {
@@ -502,8 +508,8 @@ SymbolNode *Demangler::demangleSpecialIntrinsic(StringView &MangledName) {
}
IdentifierNode *
-Demangler::demangleFunctionIdentifierCode(StringView &MangledName) {
- assert(MangledName.startsWith('?'));
+Demangler::demangleFunctionIdentifierCode(std::string_view &MangledName) {
+ assert(llvm::itanium_demangle::starts_with(MangledName, '?'));
MangledName.remove_prefix(1);
if (MangledName.empty()) {
Error = true;
@@ -521,7 +527,7 @@ Demangler::demangleFunctionIdentifierCode(StringView &MangledName) {
}
StructorIdentifierNode *
-Demangler::demangleStructorIdentifier(StringView &MangledName,
+Demangler::demangleStructorIdentifier(std::string_view &MangledName,
bool IsDestructor) {
StructorIdentifierNode *N = Arena.alloc<StructorIdentifierNode>();
N->IsDestructor = IsDestructor;
@@ -529,14 +535,14 @@ Demangler::demangleStructorIdentifier(StringView &MangledName,
}
ConversionOperatorIdentifierNode *
-Demangler::demangleConversionOperatorIdentifier(StringView &MangledName) {
+Demangler::demangleConversionOperatorIdentifier(std::string_view &MangledName) {
ConversionOperatorIdentifierNode *N =
Arena.alloc<ConversionOperatorIdentifierNode>();
return N;
}
LiteralOperatorIdentifierNode *
-Demangler::demangleLiteralOperatorIdentifier(StringView &MangledName) {
+Demangler::demangleLiteralOperatorIdentifier(std::string_view &MangledName) {
LiteralOperatorIdentifierNode *N =
Arena.alloc<LiteralOperatorIdentifierNode>();
N->Name = demangleSimpleString(MangledName, /*Memorize=*/false);
@@ -684,7 +690,7 @@ Demangler::translateIntrinsicFunctionCode(char CH,
}
IdentifierNode *
-Demangler::demangleFunctionIdentifierCode(StringView &MangledName,
+Demangler::demangleFunctionIdentifierCode(std::string_view &MangledName,
FunctionIdentifierCodeGroup Group) {
if (MangledName.empty()) {
Error = true;
@@ -722,7 +728,7 @@ Demangler::demangleFunctionIdentifierCode(StringView &MangledName,
DEMANGLE_UNREACHABLE;
}
-SymbolNode *Demangler::demangleEncodedSymbol(StringView &MangledName,
+SymbolNode *Demangler::demangleEncodedSymbol(std::string_view &MangledName,
QualifiedNameNode *Name) {
if (MangledName.empty()) {
Error = true;
@@ -752,7 +758,7 @@ SymbolNode *Demangler::demangleEncodedSymbol(StringView &MangledName,
return FSN;
}
-SymbolNode *Demangler::demangleDeclarator(StringView &MangledName) {
+SymbolNode *Demangler::demangleDeclarator(std::string_view &MangledName) {
// What follows is a main symbol name. This may include namespaces or class
// back references.
QualifiedNameNode *QN = demangleFullyQualifiedSymbolName(MangledName);
@@ -776,17 +782,17 @@ SymbolNode *Demangler::demangleDeclarator(StringView &MangledName) {
return Symbol;
}
-SymbolNode *Demangler::demangleMD5Name(StringView &MangledName) {
- assert(MangledName.startsWith("??@"));
+SymbolNode *Demangler::demangleMD5Name(std::string_view &MangledName) {
+ assert(llvm::itanium_demangle::starts_with(MangledName, "??@"));
// This is an MD5 mangled name. We can't demangle it, just return the
// mangled name.
// An MD5 mangled name is ??@ followed by 32 characters and a terminating @.
size_t MD5Last = MangledName.find('@', strlen("??@"));
- if (MD5Last == StringView::npos) {
+ if (MD5Last == std::string_view::npos) {
Error = true;
return nullptr;
}
- const char *Start = MangledName.begin();
+ const char *Start = &*MangledName.begin();
MangledName.remove_prefix(MD5Last + 1);
// There are two additional special cases for MD5 names:
@@ -801,15 +807,15 @@ SymbolNode *Demangler::demangleMD5Name(StringView &MangledName) {
// either.
consumeFront(MangledName, "??_R4@");
- StringView MD5(Start, MangledName.begin() - Start);
+ std::string_view MD5(Start, &*MangledName.begin() - Start);
SymbolNode *S = Arena.alloc<SymbolNode>(NodeKind::Md5Symbol);
S->Name = synthesizeQualifiedName(Arena, MD5);
return S;
}
-SymbolNode *Demangler::demangleTypeinfoName(StringView &MangledName) {
- assert(MangledName.startsWith('.'));
+SymbolNode *Demangler::demangleTypeinfoName(std::string_view &MangledName) {
+ assert(llvm::itanium_demangle::starts_with(MangledName, '.'));
consumeFront(MangledName, '.');
TypeNode *T = demangleType(MangledName, QualifierMangleMode::Result);
@@ -821,18 +827,18 @@ SymbolNode *Demangler::demangleTypeinfoName(StringView &MangledName) {
}
// Parser entry point.
-SymbolNode *Demangler::parse(StringView &MangledName) {
+SymbolNode *Demangler::parse(std::string_view &MangledName) {
// Typeinfo names are strings stored in RTTI data. They're not symbol names.
// It's still useful to demangle them. They're the only demangled entity
// that doesn't start with a "?" but a ".".
- if (MangledName.startsWith('.'))
+ if (llvm::itanium_demangle::starts_with(MangledName, '.'))
return demangleTypeinfoName(MangledName);
- if (MangledName.startsWith("??@"))
+ if (llvm::itanium_demangle::starts_with(MangledName, "??@"))
return demangleMD5Name(MangledName);
// MSVC-style mangled symbols must start with '?'.
- if (!MangledName.startsWith('?')) {
+ if (!llvm::itanium_demangle::starts_with(MangledName, '?')) {
Error = true;
return nullptr;
}
@@ -847,7 +853,7 @@ SymbolNode *Demangler::parse(StringView &MangledName) {
return demangleDeclarator(MangledName);
}
-TagTypeNode *Demangler::parseTagUniqueName(StringView &MangledName) {
+TagTypeNode *Demangler::parseTagUniqueName(std::string_view &MangledName) {
if (!consumeFront(MangledName, ".?A")) {
Error = true;
return nullptr;
@@ -868,8 +874,9 @@ TagTypeNode *Demangler::parseTagUniqueName(StringView &MangledName) {
// ::= 3 # global
// ::= 4 # static local
-VariableSymbolNode *Demangler::demangleVariableEncoding(StringView &MangledName,
- StorageClass SC) {
+VariableSymbolNode *
+Demangler::demangleVariableEncoding(std::string_view &MangledName,
+ StorageClass SC) {
VariableSymbolNode *VSN = Arena.alloc<VariableSymbolNode>();
VSN->Type = demangleType(MangledName, QualifierMangleMode::Drop);
@@ -919,7 +926,8 @@ VariableSymbolNode *Demangler::demangleVariableEncoding(StringView &MangledName,
// ::= <hex digit>+ @ # when Number == 0 or >= 10
//
// <hex-digit> ::= [A-P] # A = 0, B = 1, ...
-std::pair<uint64_t, bool> Demangler::demangleNumber(StringView &MangledName) {
+std::pair<uint64_t, bool>
+Demangler::demangleNumber(std::string_view &MangledName) {
bool IsNegative = consumeFront(MangledName, '?');
if (startsWithDigit(MangledName)) {
@@ -946,7 +954,7 @@ std::pair<uint64_t, bool> Demangler::demangleNumber(StringView &MangledName) {
return {0ULL, false};
}
-uint64_t Demangler::demangleUnsigned(StringView &MangledName) {
+uint64_t Demangler::demangleUnsigned(std::string_view &MangledName) {
bool IsNegative = false;
uint64_t Number = 0;
std::tie(Number, IsNegative) = demangleNumber(MangledName);
@@ -955,7 +963,7 @@ uint64_t Demangler::demangleUnsigned(StringView &MangledName) {
return Number;
}
-int64_t Demangler::demangleSigned(StringView &MangledName) {
+int64_t Demangler::demangleSigned(std::string_view &MangledName) {
bool IsNegative = false;
uint64_t Number = 0;
std::tie(Number, IsNegative) = demangleNumber(MangledName);
@@ -967,7 +975,7 @@ int64_t Demangler::demangleSigned(StringView &MangledName) {
// First 10 strings can be referenced by special BackReferences ?0, ?1, ..., ?9.
// Memorize it.
-void Demangler::memorizeString(StringView S) {
+void Demangler::memorizeString(std::string_view S) {
if (Backrefs.NamesCount >= BackrefContext::Max)
return;
for (size_t i = 0; i < Backrefs.NamesCount; ++i)
@@ -978,7 +986,8 @@ void Demangler::memorizeString(StringView S) {
Backrefs.Names[Backrefs.NamesCount++] = N;
}
-NamedIdentifierNode *Demangler::demangleBackRefName(StringView &MangledName) {
+NamedIdentifierNode *
+Demangler::demangleBackRefName(std::string_view &MangledName) {
assert(startsWithDigit(MangledName));
size_t I = MangledName[0] - '0';
@@ -996,15 +1005,15 @@ void Demangler::memorizeIdentifier(IdentifierNode *Identifier) {
// memorize it for the purpose of back-referencing.
OutputBuffer OB;
Identifier->output(OB, OF_Default);
- StringView Owned = copyString(OB);
+ std::string_view Owned = copyString(OB);
memorizeString(Owned);
std::free(OB.getBuffer());
}
IdentifierNode *
-Demangler::demangleTemplateInstantiationName(StringView &MangledName,
+Demangler::demangleTemplateInstantiationName(std::string_view &MangledName,
NameBackrefBehavior NBB) {
- assert(MangledName.startsWith("?$"));
+ assert(llvm::itanium_demangle::starts_with(MangledName, "?$"));
consumeFront(MangledName, "?$");
BackrefContext OuterContext;
@@ -1035,9 +1044,9 @@ Demangler::demangleTemplateInstantiationName(StringView &MangledName,
return Identifier;
}
-NamedIdentifierNode *Demangler::demangleSimpleName(StringView &MangledName,
- bool Memorize) {
- StringView S = demangleSimpleString(MangledName, Memorize);
+NamedIdentifierNode *
+Demangler::demangleSimpleName(std::string_view &MangledName, bool Memorize) {
+ std::string_view S = demangleSimpleString(MangledName, Memorize);
if (Error)
return nullptr;
@@ -1053,9 +1062,9 @@ static uint8_t rebasedHexDigitToNumber(char C) {
return (C <= 'J') ? (C - 'A') : (10 + C - 'K');
}
-uint8_t Demangler::demangleCharLiteral(StringView &MangledName) {
+uint8_t Demangler::demangleCharLiteral(std::string_view &MangledName) {
assert(!MangledName.empty());
- if (!MangledName.startsWith('?')) {
+ if (!llvm::itanium_demangle::starts_with(MangledName, '?')) {
const uint8_t F = MangledName.front();
MangledName.remove_prefix(1);
return F;
@@ -1069,7 +1078,7 @@ uint8_t Demangler::demangleCharLiteral(StringView &MangledName) {
// Two hex digits
if (MangledName.size() < 2)
goto CharLiteralError;
- StringView Nibbles = MangledName.substr(0, 2);
+ std::string_view Nibbles = MangledName.substr(0, 2);
if (!isRebasedHexDigit(Nibbles[0]) || !isRebasedHexDigit(Nibbles[1]))
goto CharLiteralError;
// Don't append the null terminator.
@@ -1111,7 +1120,7 @@ CharLiteralError:
return '\0';
}
-wchar_t Demangler::demangleWcharLiteral(StringView &MangledName) {
+wchar_t Demangler::demangleWcharLiteral(std::string_view &MangledName) {
uint8_t C1, C2;
C1 = demangleCharLiteral(MangledName);
@@ -1156,7 +1165,7 @@ static void outputHex(OutputBuffer &OB, unsigned C) {
TempBuffer[Pos--] = 'x';
assert(Pos >= 0);
TempBuffer[Pos--] = '\\';
- OB << StringView(&TempBuffer[Pos + 1]);
+ OB << std::string_view(&TempBuffer[Pos + 1]);
}
static void outputEscapedChar(OutputBuffer &OB, unsigned C) {
@@ -1278,7 +1287,8 @@ static unsigned decodeMultiByteChar(const uint8_t *StringBytes,
return Result;
}
-FunctionSymbolNode *Demangler::demangleVcallThunkNode(StringView &MangledName) {
+FunctionSymbolNode *
+Demangler::demangleVcallThunkNode(std::string_view &MangledName) {
FunctionSymbolNode *FSN = Arena.alloc<FunctionSymbolNode>();
VcallThunkIdentifierNode *VTIN = Arena.alloc<VcallThunkIdentifierNode>();
FSN->Signature = Arena.alloc<ThunkSignatureNode>();
@@ -1297,10 +1307,10 @@ FunctionSymbolNode *Demangler::demangleVcallThunkNode(StringView &MangledName) {
}
EncodedStringLiteralNode *
-Demangler::demangleStringLiteral(StringView &MangledName) {
+Demangler::demangleStringLiteral(std::string_view &MangledName) {
// This function uses goto, so declare all variables up front.
OutputBuffer OB;
- StringView CRC;
+ std::string_view CRC;
uint64_t StringByteSize;
bool IsWcharT = false;
bool IsNegative = false;
@@ -1335,7 +1345,7 @@ Demangler::demangleStringLiteral(StringView &MangledName) {
// CRC 32 (always 8 characters plus a terminator)
CrcEndPos = MangledName.find('@');
- if (CrcEndPos == StringView::npos)
+ if (CrcEndPos == std::string_view::npos)
goto StringLiteralError;
CRC = MangledName.substr(0, CrcEndPos);
MangledName.remove_prefix(CrcEndPos + 1);
@@ -1410,9 +1420,9 @@ StringLiteralError:
// Returns MangledName's prefix before the first '@', or an error if
// MangledName contains no '@' or the prefix has length 0.
-StringView Demangler::demangleSimpleString(StringView &MangledName,
- bool Memorize) {
- StringView S;
+std::string_view Demangler::demangleSimpleString(std::string_view &MangledName,
+ bool Memorize) {
+ std::string_view S;
for (size_t i = 0; i < MangledName.size(); ++i) {
if (MangledName[i] != '@')
continue;
@@ -1431,25 +1441,25 @@ StringView Demangler::demangleSimpleString(StringView &MangledName,
}
NamedIdentifierNode *
-Demangler::demangleAnonymousNamespaceName(StringView &MangledName) {
- assert(MangledName.startsWith("?A"));
+Demangler::demangleAnonymousNamespaceName(std::string_view &MangledName) {
+ assert(llvm::itanium_demangle::starts_with(MangledName, "?A"));
consumeFront(MangledName, "?A");
NamedIdentifierNode *Node = Arena.alloc<NamedIdentifierNode>();
Node->Name = "`anonymous namespace'";
size_t EndPos = MangledName.find('@');
- if (EndPos == StringView::npos) {
+ if (EndPos == std::string_view::npos) {
Error = true;
return nullptr;
}
- StringView NamespaceKey = MangledName.substr(0, EndPos);
+ std::string_view NamespaceKey = MangledName.substr(0, EndPos);
memorizeString(NamespaceKey);
MangledName = MangledName.substr(EndPos + 1);
return Node;
}
NamedIdentifierNode *
-Demangler::demangleLocallyScopedNamePiece(StringView &MangledName) {
+Demangler::demangleLocallyScopedNamePiece(std::string_view &MangledName) {
assert(startsWithLocalScopePattern(MangledName));
NamedIdentifierNode *Identifier = Arena.alloc<NamedIdentifierNode>();
@@ -1481,7 +1491,7 @@ Demangler::demangleLocallyScopedNamePiece(StringView &MangledName) {
// Parses a type name in the form of A@B@C@@ which represents C::B::A.
QualifiedNameNode *
-Demangler::demangleFullyQualifiedTypeName(StringView &MangledName) {
+Demangler::demangleFullyQualifiedTypeName(std::string_view &MangledName) {
IdentifierNode *Identifier =
demangleUnqualifiedTypeName(MangledName, /*Memorize=*/true);
if (Error)
@@ -1499,7 +1509,7 @@ Demangler::demangleFullyQualifiedTypeName(StringView &MangledName) {
// Symbol names have slightly different rules regarding what can appear
// so we separate out the implementations for flexibility.
QualifiedNameNode *
-Demangler::demangleFullyQualifiedSymbolName(StringView &MangledName) {
+Demangler::demangleFullyQualifiedSymbolName(std::string_view &MangledName) {
// This is the final component of a symbol name (i.e. the leftmost component
// of a mangled name. Since the only possible template instantiation that
// can appear in this context is a function template, and since those are
@@ -1528,8 +1538,9 @@ Demangler::demangleFullyQualifiedSymbolName(StringView &MangledName) {
return QN;
}
-IdentifierNode *Demangler::demangleUnqualifiedTypeName(StringView &MangledName,
- bool Memorize) {
+IdentifierNode *
+Demangler::demangleUnqualifiedTypeName(std::string_view &MangledName,
+ bool Memorize) {
// An inner-most name can be a back-reference, because a fully-qualified name
// (e.g. Scope + Inner) can contain other fully qualified names inside of
// them (for example template parameters), and these nested parameters can
@@ -1537,32 +1548,33 @@ IdentifierNode *Demangler::demangleUnqualifiedTypeName(StringView &MangledName,
if (startsWithDigit(MangledName))
return demangleBackRefName(MangledName);
- if (MangledName.startsWith("?$"))
+ if (llvm::itanium_demangle::starts_with(MangledName, "?$"))
return demangleTemplateInstantiationName(MangledName, NBB_Template);
return demangleSimpleName(MangledName, Memorize);
}
IdentifierNode *
-Demangler::demangleUnqualifiedSymbolName(StringView &MangledName,
+Demangler::demangleUnqualifiedSymbolName(std::string_view &MangledName,
NameBackrefBehavior NBB) {
if (startsWithDigit(MangledName))
return demangleBackRefName(MangledName);
- if (MangledName.startsWith("?$"))
+ if (llvm::itanium_demangle::starts_with(MangledName, "?$"))
return demangleTemplateInstantiationName(MangledName, NBB);
- if (MangledName.startsWith('?'))
+ if (llvm::itanium_demangle::starts_with(MangledName, '?'))
return demangleFunctionIdentifierCode(MangledName);
return demangleSimpleName(MangledName, /*Memorize=*/(NBB & NBB_Simple) != 0);
}
-IdentifierNode *Demangler::demangleNameScopePiece(StringView &MangledName) {
+IdentifierNode *
+Demangler::demangleNameScopePiece(std::string_view &MangledName) {
if (startsWithDigit(MangledName))
return demangleBackRefName(MangledName);
- if (MangledName.startsWith("?$"))
+ if (llvm::itanium_demangle::starts_with(MangledName, "?$"))
return demangleTemplateInstantiationName(MangledName, NBB_Template);
- if (MangledName.startsWith("?A"))
+ if (llvm::itanium_demangle::starts_with(MangledName, "?A"))
return demangleAnonymousNamespaceName(MangledName);
if (startsWithLocalScopePattern(MangledName))
@@ -1584,7 +1596,7 @@ static NodeArrayNode *nodeListToNodeArray(ArenaAllocator &Arena, NodeList *Head,
}
QualifiedNameNode *
-Demangler::demangleNameScopeChain(StringView &MangledName,
+Demangler::demangleNameScopeChain(std::string_view &MangledName,
IdentifierNode *UnqualifiedName) {
NodeList *Head = Arena.alloc<NodeList>();
@@ -1615,7 +1627,7 @@ Demangler::demangleNameScopeChain(StringView &MangledName,
return QN;
}
-FuncClass Demangler::demangleFunctionClass(StringView &MangledName) {
+FuncClass Demangler::demangleFunctionClass(std::string_view &MangledName) {
const char F = MangledName.front();
MangledName.remove_prefix(1);
switch (F) {
@@ -1702,7 +1714,8 @@ FuncClass Demangler::demangleFunctionClass(StringView &MangledName) {
return FC_Public;
}
-CallingConv Demangler::demangleCallingConvention(StringView &MangledName) {
+CallingConv
+Demangler::demangleCallingConvention(std::string_view &MangledName) {
if (MangledName.empty()) {
Error = true;
return CallingConv::None;
@@ -1743,7 +1756,8 @@ CallingConv Demangler::demangleCallingConvention(StringView &MangledName) {
return CallingConv::None;
}
-StorageClass Demangler::demangleVariableStorageClass(StringView &MangledName) {
+StorageClass
+Demangler::demangleVariableStorageClass(std::string_view &MangledName) {
assert(MangledName.front() >= '0' && MangledName.front() <= '4');
const char F = MangledName.front();
@@ -1764,7 +1778,7 @@ StorageClass Demangler::demangleVariableStorageClass(StringView &MangledName) {
}
std::pair<Qualifiers, bool>
-Demangler::demangleQualifiers(StringView &MangledName) {
+Demangler::demangleQualifiers(std::string_view &MangledName) {
if (MangledName.empty()) {
Error = true;
return std::make_pair(Q_None, false);
@@ -1798,7 +1812,7 @@ Demangler::demangleQualifiers(StringView &MangledName) {
// <variable-type> ::= <type> <cvr-qualifiers>
// ::= <type> <pointee-cvr-qualifiers> # pointers, references
-TypeNode *Demangler::demangleType(StringView &MangledName,
+TypeNode *Demangler::demangleType(std::string_view &MangledName,
QualifierMangleMode QMM) {
Qualifiers Quals = Q_None;
bool IsMember = false;
@@ -1830,7 +1844,7 @@ TypeNode *Demangler::demangleType(StringView &MangledName,
if (consumeFront(MangledName, "$$A8@@"))
Ty = demangleFunctionType(MangledName, true);
else {
- assert(MangledName.startsWith("$$A6"));
+ assert(llvm::itanium_demangle::starts_with(MangledName, "$$A6"));
consumeFront(MangledName, "$$A6");
Ty = demangleFunctionType(MangledName, false);
}
@@ -1846,7 +1860,7 @@ TypeNode *Demangler::demangleType(StringView &MangledName,
return Ty;
}
-bool Demangler::demangleThrowSpecification(StringView &MangledName) {
+bool Demangler::demangleThrowSpecification(std::string_view &MangledName) {
if (consumeFront(MangledName, "_E"))
return true;
if (consumeFront(MangledName, 'Z'))
@@ -1856,8 +1870,9 @@ bool Demangler::demangleThrowSpecification(StringView &MangledName) {
return false;
}
-FunctionSignatureNode *Demangler::demangleFunctionType(StringView &MangledName,
- bool HasThisQuals) {
+FunctionSignatureNode *
+Demangler::demangleFunctionType(std::string_view &MangledName,
+ bool HasThisQuals) {
FunctionSignatureNode *FTy = Arena.alloc<FunctionSignatureNode>();
if (HasThisQuals) {
@@ -1883,7 +1898,7 @@ FunctionSignatureNode *Demangler::demangleFunctionType(StringView &MangledName,
}
FunctionSymbolNode *
-Demangler::demangleFunctionEncoding(StringView &MangledName) {
+Demangler::demangleFunctionEncoding(std::string_view &MangledName) {
FuncClass ExtraFlags = FC_None;
if (consumeFront(MangledName, "$$J0"))
ExtraFlags = FC_ExternC;
@@ -1935,8 +1950,8 @@ Demangler::demangleFunctionEncoding(StringView &MangledName) {
return Symbol;
}
-CustomTypeNode *Demangler::demangleCustomType(StringView &MangledName) {
- assert(MangledName.startsWith('?'));
+CustomTypeNode *Demangler::demangleCustomType(std::string_view &MangledName) {
+ assert(llvm::itanium_demangle::starts_with(MangledName, '?'));
MangledName.remove_prefix(1);
CustomTypeNode *CTN = Arena.alloc<CustomTypeNode>();
@@ -1949,7 +1964,8 @@ CustomTypeNode *Demangler::demangleCustomType(StringView &MangledName) {
}
// Reads a primitive type.
-PrimitiveTypeNode *Demangler::demanglePrimitiveType(StringView &MangledName) {
+PrimitiveTypeNode *
+Demangler::demanglePrimitiveType(std::string_view &MangledName) {
if (consumeFront(MangledName, "$$T"))
return Arena.alloc<PrimitiveTypeNode>(PrimitiveKind::Nullptr);
@@ -2012,7 +2028,7 @@ PrimitiveTypeNode *Demangler::demanglePrimitiveType(StringView &MangledName) {
return nullptr;
}
-TagTypeNode *Demangler::demangleClassType(StringView &MangledName) {
+TagTypeNode *Demangler::demangleClassType(std::string_view &MangledName) {
TagTypeNode *TT = nullptr;
const char F = MangledName.front();
@@ -2044,7 +2060,7 @@ TagTypeNode *Demangler::demangleClassType(StringView &MangledName) {
// <pointer-type> ::= E? <pointer-cvr-qualifiers> <ext-qualifiers> <type>
// # the E is required for 64-bit non-static pointers
-PointerTypeNode *Demangler::demanglePointerType(StringView &MangledName) {
+PointerTypeNode *Demangler::demanglePointerType(std::string_view &MangledName) {
PointerTypeNode *Pointer = Arena.alloc<PointerTypeNode>();
std::tie(Pointer->Quals, Pointer->Affinity) =
@@ -2062,7 +2078,8 @@ PointerTypeNode *Demangler::demanglePointerType(StringView &MangledName) {
return Pointer;
}
-PointerTypeNode *Demangler::demangleMemberPointerType(StringView &MangledName) {
+PointerTypeNode *
+Demangler::demangleMemberPointerType(std::string_view &MangledName) {
PointerTypeNode *Pointer = Arena.alloc<PointerTypeNode>();
std::tie(Pointer->Quals, Pointer->Affinity) =
@@ -2092,7 +2109,8 @@ PointerTypeNode *Demangler::demangleMemberPointerType(StringView &MangledName) {
return Pointer;
}
-Qualifiers Demangler::demanglePointerExtQualifiers(StringView &MangledName) {
+Qualifiers
+Demangler::demanglePointerExtQualifiers(std::string_view &MangledName) {
Qualifiers Quals = Q_None;
if (consumeFront(MangledName, 'E'))
Quals = Qualifiers(Quals | Q_Pointer64);
@@ -2104,7 +2122,7 @@ Qualifiers Demangler::demanglePointerExtQualifiers(StringView &MangledName) {
return Quals;
}
-ArrayTypeNode *Demangler::demangleArrayType(StringView &MangledName) {
+ArrayTypeNode *Demangler::demangleArrayType(std::string_view &MangledName) {
assert(MangledName.front() == 'Y');
MangledName.remove_prefix(1);
@@ -2149,8 +2167,9 @@ ArrayTypeNode *Demangler::demangleArrayType(StringView &MangledName) {
}
// Reads a function's parameters.
-NodeArrayNode *Demangler::demangleFunctionParameterList(StringView &MangledName,
- bool &IsVariadic) {
+NodeArrayNode *
+Demangler::demangleFunctionParameterList(std::string_view &MangledName,
+ bool &IsVariadic) {
// Empty parameter list.
if (consumeFront(MangledName, 'X'))
return nullptr;
@@ -2158,8 +2177,8 @@ NodeArrayNode *Demangler::demangleFunctionParameterList(StringView &MangledName,
NodeList *Head = Arena.alloc<NodeList>();
NodeList **Current = &Head;
size_t Count = 0;
- while (!Error && !MangledName.startsWith('@') &&
- !MangledName.startsWith('Z')) {
+ while (!Error && !llvm::itanium_demangle::starts_with(MangledName, '@') &&
+ !llvm::itanium_demangle::starts_with(MangledName, 'Z')) {
++Count;
if (startsWithDigit(MangledName)) {
@@ -2215,12 +2234,12 @@ NodeArrayNode *Demangler::demangleFunctionParameterList(StringView &MangledName,
}
NodeArrayNode *
-Demangler::demangleTemplateParameterList(StringView &MangledName) {
+Demangler::demangleTemplateParameterList(std::string_view &MangledName) {
NodeList *Head = nullptr;
NodeList **Current = &Head;
size_t Count = 0;
- while (!MangledName.startsWith('@')) {
+ while (!llvm::itanium_demangle::starts_with(MangledName, '@')) {
if (consumeFront(MangledName, "$S") || consumeFront(MangledName, "$$V") ||
consumeFront(MangledName, "$$$V") || consumeFront(MangledName, "$$Z")) {
// parameter pack separator
@@ -2244,8 +2263,10 @@ Demangler::demangleTemplateParameterList(StringView &MangledName) {
} else if (consumeFront(MangledName, "$$C")) {
// Type has qualifiers.
TP.N = demangleType(MangledName, QualifierMangleMode::Mangle);
- } else if (MangledName.startsWith("$1") || MangledName.startsWith("$H") ||
- MangledName.startsWith("$I") || MangledName.startsWith("$J")) {
+ } else if (llvm::itanium_demangle::starts_with(MangledName, "$1") ||
+ llvm::itanium_demangle::starts_with(MangledName, "$H") ||
+ llvm::itanium_demangle::starts_with(MangledName, "$I") ||
+ llvm::itanium_demangle::starts_with(MangledName, "$J")) {
// Pointer to member
TP.N = TPRN = Arena.alloc<TemplateParameterReferenceNode>();
TPRN->IsMemberPointer = true;
@@ -2258,7 +2279,7 @@ Demangler::demangleTemplateParameterList(StringView &MangledName) {
char InheritanceSpecifier = MangledName.front();
MangledName.remove_prefix(1);
SymbolNode *S = nullptr;
- if (MangledName.startsWith('?')) {
+ if (llvm::itanium_demangle::starts_with(MangledName, '?')) {
S = parse(MangledName);
if (Error || !S->Name) {
Error = true;
@@ -2287,13 +2308,14 @@ Demangler::demangleTemplateParameterList(StringView &MangledName) {
}
TPRN->Affinity = PointerAffinity::Pointer;
TPRN->Symbol = S;
- } else if (MangledName.startsWith("$E?")) {
+ } else if (llvm::itanium_demangle::starts_with(MangledName, "$E?")) {
consumeFront(MangledName, "$E");
// Reference to symbol
TP.N = TPRN = Arena.alloc<TemplateParameterReferenceNode>();
TPRN->Symbol = parse(MangledName);
TPRN->Affinity = PointerAffinity::Reference;
- } else if (MangledName.startsWith("$F") || MangledName.startsWith("$G")) {
+ } else if (llvm::itanium_demangle::starts_with(MangledName, "$F") ||
+ llvm::itanium_demangle::starts_with(MangledName, "$G")) {
TP.N = TPRN = Arena.alloc<TemplateParameterReferenceNode>();
// Data member pointer.
@@ -2338,7 +2360,8 @@ Demangler::demangleTemplateParameterList(StringView &MangledName) {
// Template parameter lists cannot be variadic, so it can only be terminated
// by @ (as opposed to 'Z' in the function parameter case).
- assert(MangledName.startsWith('@')); // The above loop exits only on '@'.
+ assert(llvm::itanium_demangle::starts_with(
+ MangledName, '@')); // The above loop exits only on '@'.
consumeFront(MangledName, '@');
return nodeListToNodeArray(Arena, Head, Count);
}
@@ -2355,8 +2378,8 @@ void Demangler::dumpBackReferences() {
TypeNode *T = Backrefs.FunctionParams[I];
T->output(OB, OF_Default);
- StringView B = OB;
- std::printf(" [%d] - %.*s\n", (int)I, (int)B.size(), B.begin());
+ std::string_view B = OB;
+ std::printf(" [%d] - %.*s\n", (int)I, (int)B.size(), &*B.begin());
}
std::free(OB.getBuffer());
@@ -2365,7 +2388,7 @@ void Demangler::dumpBackReferences() {
std::printf("%d name backreferences\n", (int)Backrefs.NamesCount);
for (size_t I = 0; I < Backrefs.NamesCount; ++I) {
std::printf(" [%d] - %.*s\n", (int)I, (int)Backrefs.Names[I]->Name.size(),
- Backrefs.Names[I]->Name.begin());
+ &*Backrefs.Names[I]->Name.begin());
}
if (Backrefs.NamesCount > 0)
std::printf("\n");
@@ -2376,10 +2399,10 @@ char *llvm::microsoftDemangle(const char *MangledName, size_t *NMangled,
int *Status, MSDemangleFlags Flags) {
Demangler D;
- StringView Name{MangledName};
+ std::string_view Name{MangledName};
SymbolNode *AST = D.parse(Name);
if (!D.Error && NMangled)
- *NMangled = Name.begin() - MangledName;
+ *NMangled = &*Name.begin() - MangledName;
if (Flags & MSDF_DumpBackrefs)
D.dumpBackReferences();
generated by cgit v1.1 at 2025-09-29 16:24:39 +0000