diff --git a/externals/demangle/ItaniumDemangle.cpp b/externals/demangle/ItaniumDemangle.cpp
index b055a2fd7..47dd5d301 100644
--- a/externals/demangle/ItaniumDemangle.cpp
+++ b/externals/demangle/ItaniumDemangle.cpp
@@ -20,9 +20,7 @@
#include <cstdlib>
#include <cstring>
#include <functional>
-#include <numeric>
#include <utility>
-#include <vector>
using namespace llvm;
using namespace llvm::itanium_demangle;
@@ -81,8 +79,8 @@ struct DumpVisitor {
}
void printStr(const char *S) { fprintf(stderr, "%s", S); }
- void print(StringView SV) {
- fprintf(stderr, "\"%.*s\"", (int)SV.size(), SV.begin());
+ void print(std::string_view SV) {
+ fprintf(stderr, "\"%.*s\"", (int)SV.size(), SV.data());
}
void print(const Node *N) {
if (N)
@@ -90,14 +88,6 @@ struct DumpVisitor {
else
printStr("<null>");
}
- void print(NodeOrString NS) {
- if (NS.isNode())
- print(NS.asNode());
- else if (NS.isString())
- print(NS.asString());
- else
- printStr("NodeOrString()");
- }
void print(NodeArray A) {
++Depth;
printStr("{");
@@ -116,13 +106,11 @@ struct DumpVisitor {
// Overload used when T is exactly 'bool', not merely convertible to 'bool'.
void print(bool B) { printStr(B ? "true" : "false"); }
- template <class T>
- typename std::enable_if<std::is_unsigned<T>::value>::type print(T N) {
+ 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>
- typename std::enable_if<std::is_signed<T>::value>::type print(T N) {
+ template <class T> std::enable_if_t<std::is_signed<T>::value> print(T N) {
fprintf(stderr, "%lld", (long long)N);
}
@@ -185,6 +173,50 @@ struct DumpVisitor {
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");
@@ -334,36 +366,21 @@ public:
using Demangler = itanium_demangle::ManglingParser<DefaultAllocator>;
-char *llvm::itaniumDemangle(const char *MangledName, char *Buf,
- size_t *N, int *Status) {
- if (MangledName == nullptr || (Buf != nullptr && N == nullptr)) {
- if (Status)
- *Status = demangle_invalid_args;
+char *llvm::itaniumDemangle(std::string_view MangledName) {
+ if (MangledName.empty())
return nullptr;
- }
-
- int InternalStatus = demangle_success;
- Demangler Parser(MangledName, MangledName + std::strlen(MangledName));
- OutputStream S;
+ Demangler Parser(MangledName.data(),
+ MangledName.data() + MangledName.length());
Node *AST = Parser.parse();
+ if (!AST)
+ return nullptr;
- if (AST == nullptr)
- InternalStatus = demangle_invalid_mangled_name;
- else if (!initializeOutputStream(Buf, N, S, 1024))
- InternalStatus = demangle_memory_alloc_failure;
- else {
- assert(Parser.ForwardTemplateRefs.empty());
- AST->print(S);
- S += '\0';
- if (N != nullptr)
- *N = S.getCurrentPosition();
- Buf = S.getBuffer();
- }
-
- if (Status)
- *Status = InternalStatus;
- return InternalStatus == demangle_success ? Buf : nullptr;
+ OutputBuffer OB;
+ assert(Parser.ForwardTemplateRefs.empty());
+ AST->print(OB);
+ OB += '\0';
+ return OB.getBuffer();
}
ItaniumPartialDemangler::ItaniumPartialDemangler()
@@ -396,14 +413,12 @@ bool ItaniumPartialDemangler::partialDemangle(const char *MangledName) {
}
static char *printNode(const Node *RootNode, char *Buf, size_t *N) {
- OutputStream S;
- if (!initializeOutputStream(Buf, N, S, 128))
- return nullptr;
- RootNode->print(S);
- S += '\0';
+ OutputBuffer OB(Buf, N);
+ RootNode->print(OB);
+ OB += '\0';
if (N != nullptr)
- *N = S.getCurrentPosition();
- return S.getBuffer();
+ *N = OB.getCurrentPosition();
+ return OB.getBuffer();
}
char *ItaniumPartialDemangler::getFunctionBaseName(char *Buf, size_t *N) const {
@@ -417,8 +432,8 @@ char *ItaniumPartialDemangler::getFunctionBaseName(char *Buf, size_t *N) const {
case Node::KAbiTagAttr:
Name = static_cast<const AbiTagAttr *>(Name)->Base;
continue;
- case Node::KStdQualifiedName:
- Name = static_cast<const StdQualifiedName *>(Name)->Child;
+ case Node::KModuleEntity:
+ Name = static_cast<const ModuleEntity *>(Name)->Name;
continue;
case Node::KNestedName:
Name = static_cast<const NestedName *>(Name)->Name;
@@ -441,9 +456,7 @@ char *ItaniumPartialDemangler::getFunctionDeclContextName(char *Buf,
return nullptr;
const Node *Name = static_cast<const FunctionEncoding *>(RootNode)->getName();
- OutputStream S;
- if (!initializeOutputStream(Buf, N, S, 128))
- return nullptr;
+ OutputBuffer OB(Buf, N);
KeepGoingLocalFunction:
while (true) {
@@ -458,27 +471,27 @@ char *ItaniumPartialDemangler::getFunctionDeclContextName(char *Buf,
break;
}
+ if (Name->getKind() == Node::KModuleEntity)
+ Name = static_cast<const ModuleEntity *>(Name)->Name;
+
switch (Name->getKind()) {
- case Node::KStdQualifiedName:
- S += "std";
- break;
case Node::KNestedName:
- static_cast<const NestedName *>(Name)->Qual->print(S);
+ static_cast<const NestedName *>(Name)->Qual->print(OB);
break;
case Node::KLocalName: {
auto *LN = static_cast<const LocalName *>(Name);
- LN->Encoding->print(S);
- S += "::";
+ LN->Encoding->print(OB);
+ OB += "::";
Name = LN->Entity;
goto KeepGoingLocalFunction;
}
default:
break;
}
- S += '\0';
+ OB += '\0';
if (N != nullptr)
- *N = S.getCurrentPosition();
- return S.getBuffer();
+ *N = OB.getCurrentPosition();
+ return OB.getBuffer();
}
char *ItaniumPartialDemangler::getFunctionName(char *Buf, size_t *N) const {
@@ -494,17 +507,15 @@ char *ItaniumPartialDemangler::getFunctionParameters(char *Buf,
return nullptr;
NodeArray Params = static_cast<FunctionEncoding *>(RootNode)->getParams();
- OutputStream S;
- if (!initializeOutputStream(Buf, N, S, 128))
- return nullptr;
+ OutputBuffer OB(Buf, N);
- S += '(';
- Params.printWithComma(S);
- S += ')';
- S += '\0';
+ OB += '(';
+ Params.printWithComma(OB);
+ OB += ')';
+ OB += '\0';
if (N != nullptr)
- *N = S.getCurrentPosition();
- return S.getBuffer();
+ *N = OB.getCurrentPosition();
+ return OB.getBuffer();
}
char *ItaniumPartialDemangler::getFunctionReturnType(
@@ -512,18 +523,16 @@ char *ItaniumPartialDemangler::getFunctionReturnType(
if (!isFunction())
return nullptr;
- OutputStream S;
- if (!initializeOutputStream(Buf, N, S, 128))
- return nullptr;
+ OutputBuffer OB(Buf, N);
if (const Node *Ret =
static_cast<const FunctionEncoding *>(RootNode)->getReturnType())
- Ret->print(S);
+ Ret->print(OB);
- S += '\0';
+ OB += '\0';
if (N != nullptr)
- *N = S.getCurrentPosition();
- return S.getBuffer();
+ *N = OB.getCurrentPosition();
+ return OB.getBuffer();
}
char *ItaniumPartialDemangler::finishDemangle(char *Buf, size_t *N) const {
@@ -563,8 +572,8 @@ bool ItaniumPartialDemangler::isCtorOrDtor() const {
case Node::KNestedName:
N = static_cast<const NestedName *>(N)->Name;
break;
- case Node::KStdQualifiedName:
- N = static_cast<const StdQualifiedName *>(N)->Child;
+ case Node::KModuleEntity:
+ N = static_cast<const ModuleEntity *>(N)->Name;
break;
}
}
diff --git a/externals/demangle/llvm/Demangle/Demangle.h b/externals/demangle/llvm/Demangle/Demangle.h
index 5b673e4e1..1552a501a 100644
--- a/externals/demangle/llvm/Demangle/Demangle.h
+++ b/externals/demangle/llvm/Demangle/Demangle.h
@@ -12,6 +12,7 @@
#include <cstddef>
#include <string>
+#include <string_view>
namespace llvm {
/// This is a llvm local version of __cxa_demangle. Other than the name and
@@ -29,9 +30,10 @@ enum : int {
demangle_success = 0,
};
-char *itaniumDemangle(const char *mangled_name, char *buf, size_t *n,
- int *status);
-
+/// Returns a non-NULL pointer to a NUL-terminated C style string
+/// that should be explicitly freed, if successful. Otherwise, may return
+/// nullptr if mangled_name is not a valid mangling or is nullptr.
+char *itaniumDemangle(std::string_view mangled_name);
enum MSDemangleFlags {
MSDF_None = 0,
@@ -40,10 +42,34 @@ enum MSDemangleFlags {
MSDF_NoCallingConvention = 1 << 2,
MSDF_NoReturnType = 1 << 3,
MSDF_NoMemberType = 1 << 4,
+ MSDF_NoVariableType = 1 << 5,
};
-char *microsoftDemangle(const char *mangled_name, char *buf, size_t *n,
+
+/// Demangles the Microsoft symbol pointed at by mangled_name and returns it.
+/// Returns a pointer to the start of a null-terminated demangled string on
+/// success, or nullptr on error.
+/// If n_read is non-null and demangling was successful, it receives how many
+/// bytes of the input string were consumed.
+/// status receives one of the demangle_ enum entries above if it's not nullptr.
+/// Flags controls various details of the demangled representation.
+char *microsoftDemangle(std::string_view mangled_name, size_t *n_read,
int *status, MSDemangleFlags Flags = MSDF_None);
+// Demangles a Rust v0 mangled symbol.
+char *rustDemangle(std::string_view MangledName);
+
+// Demangles a D mangled symbol.
+char *dlangDemangle(std::string_view MangledName);
+
+/// Attempt to demangle a string using different demangling schemes.
+/// The function uses heuristics to determine which demangling scheme to use.
+/// \param MangledName - reference to string to demangle.
+/// \returns - the demangled string, or a copy of the input string if no
+/// demangling occurred.
+std::string demangle(std::string_view MangledName);
+
+bool nonMicrosoftDemangle(std::string_view MangledName, std::string &Result);
+
/// "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.
@@ -59,7 +85,7 @@ struct ItaniumPartialDemangler {
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.
+ /// second and third parameters to __cxa_demangle.
char *finishDemangle(char *Buf, size_t *N) const;
/// Get the base name of a function. This doesn't include trailing template
@@ -95,6 +121,7 @@ struct ItaniumPartialDemangler {
bool isSpecialName() const;
~ItaniumPartialDemangler();
+
private:
void *RootNode;
void *Context;
diff --git a/externals/demangle/llvm/Demangle/DemangleConfig.h b/externals/demangle/llvm/Demangle/DemangleConfig.h
index a8aef9df1..c7f86d766 100644
--- a/externals/demangle/llvm/Demangle/DemangleConfig.h
+++ b/externals/demangle/llvm/Demangle/DemangleConfig.h
@@ -13,8 +13,8 @@
//
//===----------------------------------------------------------------------===//
-#ifndef LLVM_DEMANGLE_COMPILER_H
-#define LLVM_DEMANGLE_COMPILER_H
+#ifndef LLVM_DEMANGLE_DEMANGLECONFIG_H
+#define LLVM_DEMANGLE_DEMANGLECONFIG_H
#ifndef __has_feature
#define __has_feature(x) 0
diff --git a/externals/demangle/llvm/Demangle/ItaniumDemangle.h b/externals/demangle/llvm/Demangle/ItaniumDemangle.h
index 64b35c142..0dc3d7337 100644
--- a/externals/demangle/llvm/Demangle/ItaniumDemangle.h
+++ b/externals/demangle/llvm/Demangle/ItaniumDemangle.h
@@ -1,5 +1,5 @@
-//===------------------------- ItaniumDemangle.h ----------------*- C++ -*-===//
-//
+//===--- ItaniumDemangle.h -----------*- mode:c++;eval:(read-only-mode) -*-===//
+// Do not edit! See README.txt.
// 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
@@ -7,144 +7,220 @@
//
//===----------------------------------------------------------------------===//
//
-// Generic itanium demangler library. This file has two byte-per-byte identical
-// copies in the source tree, one in libcxxabi, and the other in llvm.
+// Generic itanium demangler library.
+// There are two copies of this file in the source tree. The one under
+// libcxxabi is the original and the one under llvm is the copy. Use
+// cp-to-llvm.sh to update the copy. See README.txt for more details.
//
//===----------------------------------------------------------------------===//
#ifndef DEMANGLE_ITANIUMDEMANGLE_H
#define DEMANGLE_ITANIUMDEMANGLE_H
-// FIXME: (possibly) incomplete list of features that clang mangles that this
-// file does not yet support:
-// - C++ modules TS
-
#include "DemangleConfig.h"
-#include "StringView.h"
+#include "StringViewExtras.h"
#include "Utility.h"
+#include <algorithm>
#include <cassert>
#include <cctype>
#include <cstdio>
#include <cstdlib>
#include <cstring>
-#include <numeric>
+#include <limits>
+#include <new>
+#include <string_view>
+#include <type_traits>
#include <utility>
-#define FOR_EACH_NODE_KIND(X) \
- X(NodeArrayNode) \
- X(DotSuffix) \
- X(VendorExtQualType) \
- X(QualType) \
- X(ConversionOperatorType) \
- X(PostfixQualifiedType) \
- X(ElaboratedTypeSpefType) \
- X(NameType) \
- X(AbiTagAttr) \
- X(EnableIfAttr) \
- X(ObjCProtoName) \
- X(PointerType) \
- X(ReferenceType) \
- X(PointerToMemberType) \
- X(ArrayType) \
- X(FunctionType) \
- X(NoexceptSpec) \
- X(DynamicExceptionSpec) \
- X(FunctionEncoding) \
- X(LiteralOperator) \
- X(SpecialName) \
- X(CtorVtableSpecialName) \
- X(QualifiedName) \
- X(NestedName) \
- X(LocalName) \
- X(VectorType) \
- X(PixelVectorType) \
- X(SyntheticTemplateParamName) \
- X(TypeTemplateParamDecl) \
- X(NonTypeTemplateParamDecl) \
- X(TemplateTemplateParamDecl) \
- X(TemplateParamPackDecl) \
- X(ParameterPack) \
- X(TemplateArgumentPack) \
- X(ParameterPackExpansion) \
- X(TemplateArgs) \
- X(ForwardTemplateReference) \
- X(NameWithTemplateArgs) \
- X(GlobalQualifiedName) \
- X(StdQualifiedName) \
- X(ExpandedSpecialSubstitution) \
- X(SpecialSubstitution) \
- X(CtorDtorName) \
- X(DtorName) \
- X(UnnamedTypeName) \
- X(ClosureTypeName) \
- X(StructuredBindingName) \
- X(BinaryExpr) \
- X(ArraySubscriptExpr) \
- X(PostfixExpr) \
- X(ConditionalExpr) \
- X(MemberExpr) \
- X(EnclosingExpr) \
- X(CastExpr) \
- X(SizeofParamPackExpr) \
- X(CallExpr) \
- X(NewExpr) \
- X(DeleteExpr) \
- X(PrefixExpr) \
- X(FunctionParam) \
- X(ConversionExpr) \
- X(InitListExpr) \
- X(FoldExpr) \
- X(ThrowExpr) \
- X(UUIDOfExpr) \
- X(BoolExpr) \
- X(StringLiteral) \
- X(LambdaExpr) \
- X(IntegerCastExpr) \
- X(IntegerLiteral) \
- X(FloatLiteral) \
- X(DoubleLiteral) \
- X(LongDoubleLiteral) \
- X(BracedExpr) \
- X(BracedRangeExpr)
-
DEMANGLE_NAMESPACE_BEGIN
+template <class T, size_t N> class PODSmallVector {
+ static_assert(std::is_pod<T>::value,
+ "T is required to be a plain old data type");
+
+ T *First = nullptr;
+ T *Last = nullptr;
+ T *Cap = nullptr;
+ T Inline[N] = {0};
+
+ bool isInline() const { return First == Inline; }
+
+ void clearInline() {
+ First = Inline;
+ Last = Inline;
+ Cap = Inline + N;
+ }
+
+ void reserve(size_t NewCap) {
+ size_t S = size();
+ if (isInline()) {
+ auto *Tmp = static_cast<T *>(std::malloc(NewCap * sizeof(T)));
+ if (Tmp == nullptr)
+ std::terminate();
+ std::copy(First, Last, Tmp);
+ First = Tmp;
+ } else {
+ First = static_cast<T *>(std::realloc(First, NewCap * sizeof(T)));
+ if (First == nullptr)
+ std::terminate();
+ }
+ Last = First + S;
+ Cap = First + NewCap;
+ }
+
+public:
+ PODSmallVector() : First(Inline), Last(First), Cap(Inline + N) {}
+
+ PODSmallVector(const PODSmallVector &) = delete;
+ PODSmallVector &operator=(const PODSmallVector &) = delete;
+
+ PODSmallVector(PODSmallVector &&Other) : PODSmallVector() {
+ if (Other.isInline()) {
+ std::copy(Other.begin(), Other.end(), First);
+ Last = First + Other.size();
+ Other.clear();
+ return;
+ }
+
+ First = Other.First;
+ Last = Other.Last;
+ Cap = Other.Cap;
+ Other.clearInline();
+ }
+
+ PODSmallVector &operator=(PODSmallVector &&Other) {
+ if (Other.isInline()) {
+ if (!isInline()) {
+ std::free(First);
+ clearInline();
+ }
+ std::copy(Other.begin(), Other.end(), First);
+ Last = First + Other.size();
+ Other.clear();
+ return *this;
+ }
+
+ if (isInline()) {
+ First = Other.First;
+ Last = Other.Last;
+ Cap = Other.Cap;
+ Other.clearInline();
+ return *this;
+ }
+
+ std::swap(First, Other.First);
+ std::swap(Last, Other.Last);
+ std::swap(Cap, Other.Cap);
+ Other.clear();
+ return *this;
+ }
+
+ // NOLINTNEXTLINE(readability-identifier-naming)
+ void push_back(const T &Elem) {
+ if (Last == Cap)
+ reserve(size() * 2);
+ *Last++ = Elem;
+ }
+
+ // NOLINTNEXTLINE(readability-identifier-naming)
+ void pop_back() {
+ assert(Last != First && "Popping empty vector!");
+ --Last;
+ }
+
+ void dropBack(size_t Index) {
+ assert(Index <= size() && "dropBack() can't expand!");
+ Last = First + Index;
+ }
+
+ T *begin() { return First; }
+ T *end() { return Last; }
+
+ bool empty() const { return First == Last; }
+ size_t size() const { return static_cast<size_t>(Last - First); }
+ T &back() {
+ assert(Last != First && "Calling back() on empty vector!");
+ return *(Last - 1);
+ }
+ T &operator[](size_t Index) {
+ assert(Index < size() && "Invalid access!");
+ return *(begin() + Index);
+ }
+ void clear() { Last = First; }
+
+ ~PODSmallVector() {
+ if (!isInline())
+ std::free(First);
+ }
+};
+
// Base class of all AST nodes. The AST is built by the parser, then is
// traversed by the printLeft/Right functions to produce a demangled string.
class Node {
public:
enum Kind : unsigned char {
-#define ENUMERATOR(NodeKind) K ## NodeKind,
- FOR_EACH_NODE_KIND(ENUMERATOR)
-#undef ENUMERATOR
+#define NODE(NodeKind) K##NodeKind,
+#include "ItaniumNodes.def"
};
/// Three-way bool to track a cached value. Unknown is possible if this node
/// has an unexpanded parameter pack below it that may affect this cache.
enum class Cache : unsigned char { Yes, No, Unknown, };
+ /// Operator precedence for expression nodes. Used to determine required
+ /// parens in expression emission.
+ enum class Prec {
+ Primary,
+ Postfix,
+ Unary,
+ Cast,
+ PtrMem,
+ Multiplicative,
+ Additive,
+ Shift,
+ Spaceship,
+ Relational,
+ Equality,
+ And,
+ Xor,
+ Ior,
+ AndIf,
+ OrIf,
+ Conditional,
+ Assign,
+ Comma,
+ Default,
+ };
+
private:
Kind K;
+ Prec Precedence : 6;
+
// FIXME: Make these protected.
public:
/// Tracks if this node has a component on its right side, in which case we
/// need to call printRight.
- Cache RHSComponentCache;
+ Cache RHSComponentCache : 2;
/// Track if this node is a (possibly qualified) array type. This can affect
/// how we format the output string.
- Cache ArrayCache;
+ Cache ArrayCache : 2;
/// Track if this node is a (possibly qualified) function type. This can
/// affect how we format the output string.
- Cache FunctionCache;
+ Cache FunctionCache : 2;
public:
- Node(Kind K_, Cache RHSComponentCache_ = Cache::No,
- Cache ArrayCache_ = Cache::No, Cache FunctionCache_ = Cache::No)
- : K(K_), RHSComponentCache(RHSComponentCache_), ArrayCache(ArrayCache_),
- FunctionCache(FunctionCache_) {}
+ Node(Kind K_, Prec Precedence_ = Prec::Primary,
+ Cache RHSComponentCache_ = Cache::No, Cache ArrayCache_ = Cache::No,
+ Cache FunctionCache_ = Cache::No)
+ : K(K_), Precedence(Precedence_), RHSComponentCache(RHSComponentCache_),
+ ArrayCache(ArrayCache_), FunctionCache(FunctionCache_) {}
+ Node(Kind K_, Cache RHSComponentCache_, Cache ArrayCache_ = Cache::No,
+ Cache FunctionCache_ = Cache::No)
+ : Node(K_, Prec::Primary, RHSComponentCache_, ArrayCache_,
+ FunctionCache_) {}
/// Visit the most-derived object corresponding to this object.
template<typename Fn> void visit(Fn F) const;
@@ -155,52 +231,65 @@ public:
// would construct an equivalent node.
//template<typename Fn> void match(Fn F) const;
- bool hasRHSComponent(OutputStream &S) const {
+ bool hasRHSComponent(OutputBuffer &OB) const {
if (RHSComponentCache != Cache::Unknown)
return RHSComponentCache == Cache::Yes;
- return hasRHSComponentSlow(S);
+ return hasRHSComponentSlow(OB);
}
- bool hasArray(OutputStream &S) const {
+ bool hasArray(OutputBuffer &OB) const {
if (ArrayCache != Cache::Unknown)
return ArrayCache == Cache::Yes;
- return hasArraySlow(S);
+ return hasArraySlow(OB);
}
- bool hasFunction(OutputStream &S) const {
+ bool hasFunction(OutputBuffer &OB) const {
if (FunctionCache != Cache::Unknown)
return FunctionCache == Cache::Yes;
- return hasFunctionSlow(S);
+ return hasFunctionSlow(OB);
}
Kind getKind() const { return K; }
- virtual bool hasRHSComponentSlow(OutputStream &) const { return false; }
- virtual bool hasArraySlow(OutputStream &) const { return false; }
- virtual bool hasFunctionSlow(OutputStream &) const { return false; }
+ Prec getPrecedence() const { return Precedence; }
+
+ virtual bool hasRHSComponentSlow(OutputBuffer &) const { return false; }
+ virtual bool hasArraySlow(OutputBuffer &) const { return false; }
+ virtual bool hasFunctionSlow(OutputBuffer &) const { return false; }
// Dig through "glue" nodes like ParameterPack and ForwardTemplateReference to
// get at a node that actually represents some concrete syntax.
- virtual const Node *getSyntaxNode(OutputStream &) const {
- return this;
+ virtual const Node *getSyntaxNode(OutputBuffer &) const { return this; }
+
+ // Print this node as an expression operand, surrounding it in parentheses if
+ // its precedence is [Strictly] weaker than P.
+ void printAsOperand(OutputBuffer &OB, Prec P = Prec::Default,
+ bool StrictlyWorse = false) const {
+ bool Paren =
+ unsigned(getPrecedence()) >= unsigned(P) + unsigned(StrictlyWorse);
+ if (Paren)
+ OB.printOpen();
+ print(OB);
+ if (Paren)
+ OB.printClose();
}
- void print(OutputStream &S) const {
- printLeft(S);
+ void print(OutputBuffer &OB) const {
+ printLeft(OB);
if (RHSComponentCache != Cache::No)
- printRight(S);
+ printRight(OB);
}
- // Print the "left" side of this Node into OutputStream.
- virtual void printLeft(OutputStream &) const = 0;
+ // Print the "left" side of this Node into OutputBuffer.
+ virtual void printLeft(OutputBuffer &) const = 0;
// Print the "right". This distinction is necessary to represent C++ types
// that appear on the RHS of their subtype, such as arrays or functions.
// Since most types don't have such a component, provide a default
// implementation.
- virtual void printRight(OutputStream &) const {}
+ virtual void printRight(OutputBuffer &) const {}
- virtual StringView getBaseName() const { return StringView(); }
+ virtual std::string_view getBaseName() const { return {}; }
// Silence compiler warnings, this dtor will never be called.
virtual ~Node() = default;
@@ -227,19 +316,19 @@ public:
Node *operator[](size_t Idx) const { return Elements[Idx]; }
- void printWithComma(OutputStream &S) const {
+ void printWithComma(OutputBuffer &OB) const {
bool FirstElement = true;
for (size_t Idx = 0; Idx != NumElements; ++Idx) {
- size_t BeforeComma = S.getCurrentPosition();
+ size_t BeforeComma = OB.getCurrentPosition();
if (!FirstElement)
- S += ", ";
- size_t AfterComma = S.getCurrentPosition();
- Elements[Idx]->print(S);
+ OB += ", ";
+ size_t AfterComma = OB.getCurrentPosition();
+ Elements[Idx]->printAsOperand(OB, Node::Prec::Comma);
// Elements[Idx] is an empty parameter pack expansion, we should erase the
// comma we just printed.
- if (AfterComma == S.getCurrentPosition()) {
- S.setCurrentPosition(BeforeComma);
+ if (AfterComma == OB.getCurrentPosition()) {
+ OB.setCurrentPosition(BeforeComma);
continue;
}
@@ -254,43 +343,48 @@ struct NodeArrayNode : Node {
template<typename Fn> void match(Fn F) const { F(Array); }
- void printLeft(OutputStream &S) const override {
- Array.printWithComma(S);
- }
+ void printLeft(OutputBuffer &OB) const override { Array.printWithComma(OB); }
};
class DotSuffix final : public Node {
const Node *Prefix;
- const StringView Suffix;
+ const std::string_view Suffix;
public:
- DotSuffix(const Node *Prefix_, StringView Suffix_)
+ DotSuffix(const Node *Prefix_, std::string_view Suffix_)
: Node(KDotSuffix), Prefix(Prefix_), Suffix(Suffix_) {}
template<typename Fn> void match(Fn F) const { F(Prefix, Suffix); }
- void printLeft(OutputStream &s) const override {
- Prefix->print(s);
- s += " (";
- s += Suffix;
- s += ")";
+ void printLeft(OutputBuffer &OB) const override {
+ Prefix->print(OB);
+ OB += " (";
+ OB += Suffix;
+ OB += ")";
}
};
class VendorExtQualType final : public Node {
const Node *Ty;
- StringView Ext;
+ std::string_view Ext;
+ const Node *TA;
public:
- VendorExtQualType(const Node *Ty_, StringView Ext_)
- : Node(KVendorExtQualType), Ty(Ty_), Ext(Ext_) {}
+ VendorExtQualType(const Node *Ty_, std::string_view Ext_, const Node *TA_)
+ : Node(KVendorExtQualType), Ty(Ty_), Ext(Ext_), TA(TA_) {}
- template<typename Fn> void match(Fn F) const { F(Ty, Ext); }
+ const Node *getTy() const { return Ty; }
+ std::string_view getExt() const { return Ext; }
+ const Node *getTA() const { return TA; }
- void printLeft(OutputStream &S) const override {
- Ty->print(S);
- S += " ";
- S += Ext;
+ template <typename Fn> void match(Fn F) const { F(Ty, Ext, TA); }
+
+ void printLeft(OutputBuffer &OB) const override {
+ Ty->print(OB);
+ OB += " ";
+ OB += Ext;
+ if (TA != nullptr)
+ TA->print(OB);
}
};
@@ -316,13 +410,13 @@ protected:
const Qualifiers Quals;
const Node *Child;
- void printQuals(OutputStream &S) const {
+ void printQuals(OutputBuffer &OB) const {
if (Quals & QualConst)
- S += " const";
+ OB += " const";
if (Quals & QualVolatile)
- S += " volatile";
+ OB += " volatile";
if (Quals & QualRestrict)
- S += " restrict";
+ OB += " restrict";
}
public:
@@ -331,24 +425,27 @@ public:
Child_->ArrayCache, Child_->FunctionCache),
Quals(Quals_), Child(Child_) {}
+ Qualifiers getQuals() const { return Quals; }
+ const Node *getChild() const { return Child; }
+
template<typename Fn> void match(Fn F) const { F(Child, Quals); }
- bool hasRHSComponentSlow(OutputStream &S) const override {
- return Child->hasRHSComponent(S);
+ bool hasRHSComponentSlow(OutputBuffer &OB) const override {
+ return Child->hasRHSComponent(OB);
}
- bool hasArraySlow(OutputStream &S) const override {
- return Child->hasArray(S);
+ bool hasArraySlow(OutputBuffer &OB) const override {
+ return Child->hasArray(OB);
}
- bool hasFunctionSlow(OutputStream &S) const override {
- return Child->hasFunction(S);
+ bool hasFunctionSlow(OutputBuffer &OB) const override {
+ return Child->hasFunction(OB);
}
- void printLeft(OutputStream &S) const override {
- Child->printLeft(S);
- printQuals(S);
+ void printLeft(OutputBuffer &OB) const override {
+ Child->printLeft(OB);
+ printQuals(OB);
}
- void printRight(OutputStream &S) const override { Child->printRight(S); }
+ void printRight(OutputBuffer &OB) const override { Child->printRight(OB); }
};
class ConversionOperatorType final : public Node {
@@ -360,74 +457,96 @@ public:
template<typename Fn> void match(Fn F) const { F(Ty); }
- void printLeft(OutputStream &S) const override {
- S += "operator ";
- Ty->print(S);
+ void printLeft(OutputBuffer &OB) const override {
+ OB += "operator ";
+ Ty->print(OB);
}
};
class PostfixQualifiedType final : public Node {
const Node *Ty;
- const StringView Postfix;
+ const std::string_view Postfix;
public:
- PostfixQualifiedType(Node *Ty_, StringView Postfix_)
+ PostfixQualifiedType(const Node *Ty_, std::string_view Postfix_)
: Node(KPostfixQualifiedType), Ty(Ty_), Postfix(Postfix_) {}
template<typename Fn> void match(Fn F) const { F(Ty, Postfix); }
- void printLeft(OutputStream &s) const override {
- Ty->printLeft(s);
- s += Postfix;
+ void printLeft(OutputBuffer &OB) const override {
+ Ty->printLeft(OB);
+ OB += Postfix;
}
};
class NameType final : public Node {
- const StringView Name;
+ const std::string_view Name;
public:
- NameType(StringView Name_) : Node(KNameType), Name(Name_) {}
+ NameType(std::string_view Name_) : Node(KNameType), Name(Name_) {}
template<typename Fn> void match(Fn F) const { F(Name); }
- StringView getName() const { return Name; }
- StringView getBaseName() const override { return Name; }
+ std::string_view getName() const { return Name; }
+ std::string_view getBaseName() const override { return Name; }
- void printLeft(OutputStream &s) const override { s += Name; }
+ void printLeft(OutputBuffer &OB) const override { OB += Name; }
+};
+
+class BitIntType final : public Node {
+ const Node *Size;
+ bool Signed;
+
+public:
+ BitIntType(const Node *Size_, bool Signed_)
+ : Node(KBitIntType), Size(Size_), Signed(Signed_) {}
+
+ template <typename Fn> void match(Fn F) const { F(Size, Signed); }
+
+ void printLeft(OutputBuffer &OB) const override {
+ if (!Signed)
+ OB += "unsigned ";
+ OB += "_BitInt";
+ OB.printOpen();
+ Size->printAsOperand(OB);
+ OB.printClose();
+ }
};
class ElaboratedTypeSpefType : public Node {
- StringView Kind;
+ std::string_view Kind;
Node *Child;
public:
- ElaboratedTypeSpefType(StringView Kind_, Node *Child_)
+ ElaboratedTypeSpefType(std::string_view Kind_, Node *Child_)
: Node(KElaboratedTypeSpefType), Kind(Kind_), Child(Child_) {}
template<typename Fn> void match(Fn F) const { F(Kind, Child); }
- void printLeft(OutputStream &S) const override {
- S += Kind;
- S += ' ';
- Child->print(S);
+ void printLeft(OutputBuffer &OB) const override {
+ OB += Kind;
+ OB += ' ';
+ Child->print(OB);
}
};
struct AbiTagAttr : Node {
Node *Base;
- StringView Tag;
+ std::string_view Tag;
- AbiTagAttr(Node* Base_, StringView Tag_)
- : Node(KAbiTagAttr, Base_->RHSComponentCache,
- Base_->ArrayCache, Base_->FunctionCache),
+ AbiTagAttr(Node *Base_, std::string_view Tag_)
+ : Node(KAbiTagAttr, Base_->RHSComponentCache, Base_->ArrayCache,
+ Base_->FunctionCache),
Base(Base_), Tag(Tag_) {}
template<typename Fn> void match(Fn F) const { F(Base, Tag); }
- void printLeft(OutputStream &S) const override {
- Base->printLeft(S);
- S += "[abi:";
- S += Tag;
- S += "]";
+ std::string_view getBaseName() const override { return Base->getBaseName(); }
+
+ void printLeft(OutputBuffer &OB) const override {
+ Base->printLeft(OB);
+ OB += "[abi:";
+ OB += Tag;
+ OB += "]";
}
};
@@ -439,21 +558,21 @@ public:
template<typename Fn> void match(Fn F) const { F(Conditions); }
- void printLeft(OutputStream &S) const override {
- S += " [enable_if:";
- Conditions.printWithComma(S);
- S += ']';
+ void printLeft(OutputBuffer &OB) const override {
+ OB += " [enable_if:";
+ Conditions.printWithComma(OB);
+ OB += ']';
}
};
class ObjCProtoName : public Node {
const Node *Ty;
- StringView Protocol;
+ std::string_view Protocol;
friend class PointerType;
public:
- ObjCProtoName(const Node *Ty_, StringView Protocol_)
+ ObjCProtoName(const Node *Ty_, std::string_view Protocol_)
: Node(KObjCProtoName), Ty(Ty_), Protocol(Protocol_) {}
template<typename Fn> void match(Fn F) const { F(Ty, Protocol); }
@@ -463,11 +582,11 @@ public:
static_cast<const NameType *>(Ty)->getName() == "objc_object";
}
- void printLeft(OutputStream &S) const override {
- Ty->print(S);
- S += "<";
- S += Protocol;
- S += ">";
+ void printLeft(OutputBuffer &OB) const override {
+ Ty->print(OB);
+ OB += "<";
+ OB += Protocol;
+ OB += ">";
}
};
@@ -479,36 +598,38 @@ public:
: Node(KPointerType, Pointee_->RHSComponentCache),
Pointee(Pointee_) {}
+ const Node *getPointee() const { return Pointee; }
+
template<typename Fn> void match(Fn F) const { F(Pointee); }
- bool hasRHSComponentSlow(OutputStream &S) const override {
- return Pointee->hasRHSComponent(S);
+ bool hasRHSComponentSlow(OutputBuffer &OB) const override {
+ return Pointee->hasRHSComponent(OB);
}
- void printLeft(OutputStream &s) const override {
+ void printLeft(OutputBuffer &OB) const override {
// We rewrite objc_object<SomeProtocol>* into id<SomeProtocol>.
if (Pointee->getKind() != KObjCProtoName ||
!static_cast<const ObjCProtoName *>(Pointee)->isObjCObject()) {
- Pointee->printLeft(s);
- if (Pointee->hasArray(s))
- s += " ";
- if (Pointee->hasArray(s) || Pointee->hasFunction(s))
- s += "(";
- s += "*";
+ Pointee->printLeft(OB);
+ if (Pointee->hasArray(OB))
+ OB += " ";
+ if (Pointee->hasArray(OB) || Pointee->hasFunction(OB))
+ OB += "(";
+ OB += "*";
} else {
const auto *objcProto = static_cast<const ObjCProtoName *>(Pointee);
- s += "id<";
- s += objcProto->Protocol;
- s += ">";
+ OB += "id<";
+ OB += objcProto->Protocol;
+ OB += ">";
}
}
- void printRight(OutputStream &s) const override {
+ void printRight(OutputBuffer &OB) const override {
if (Pointee->getKind() != KObjCProtoName ||
!static_cast<const ObjCProtoName *>(Pointee)->isObjCObject()) {
- if (Pointee->hasArray(s) || Pointee->hasFunction(s))
- s += ")";
- Pointee->printRight(s);
+ if (Pointee->hasArray(OB) || Pointee->hasFunction(OB))
+ OB += ")";
+ Pointee->printRight(OB);
}
}
};
@@ -528,15 +649,30 @@ class ReferenceType : public Node {
// Dig through any refs to refs, collapsing the ReferenceTypes as we go. The
// rule here is rvalue ref to rvalue ref collapses to a rvalue ref, and any
// other combination collapses to a lvalue ref.
- std::pair<ReferenceKind, const Node *> collapse(OutputStream &S) const {
+ //
+ // A combination of a TemplateForwardReference and a back-ref Substitution
+ // from an ill-formed string may have created a cycle; use cycle detection to
+ // avoid looping forever.
+ std::pair<ReferenceKind, const Node *> collapse(OutputBuffer &OB) const {
auto SoFar = std::make_pair(RK, Pointee);
+ // Track the chain of nodes for the Floyd's 'tortoise and hare'
+ // cycle-detection algorithm, since getSyntaxNode(S) is impure
+ PODSmallVector<const Node *, 8> Prev;
for (;;) {
- const Node *SN = SoFar.second->getSyntaxNode(S);
+ const Node *SN = SoFar.second->getSyntaxNode(OB);
if (SN->getKind() != KReferenceType)
break;
auto *RT = static_cast<const ReferenceType *>(SN);
SoFar.second = RT->Pointee;
SoFar.first = std::min(SoFar.first, RT->RK);
+
+ // The middle of Prev is the 'slow' pointer moving at half speed
+ Prev.push_back(SoFar.second);
+ if (Prev.size() > 1 && SoFar.second == Prev[(Prev.size() - 1) / 2]) {
+ // Cycle detected
+ SoFar.second = nullptr;
+ break;
+ }
}
return SoFar;
}
@@ -548,31 +684,35 @@ public:
template<typename Fn> void match(Fn F) const { F(Pointee, RK); }
- bool hasRHSComponentSlow(OutputStream &S) const override {
- return Pointee->hasRHSComponent(S);
+ bool hasRHSComponentSlow(OutputBuffer &OB) const override {
+ return Pointee->hasRHSComponent(OB);
}
- void printLeft(OutputStream &s) const override {
+ void printLeft(OutputBuffer &OB) const override {
if (Printing)
return;
- SwapAndRestore<bool> SavePrinting(Printing, true);
- std::pair<ReferenceKind, const Node *> Collapsed = collapse(s);
- Collapsed.second->printLeft(s);
- if (Collapsed.second->hasArray(s))
- s += " ";
- if (Collapsed.second->hasArray(s) || Collapsed.second->hasFunction(s))
- s += "(";
+ ScopedOverride<bool> SavePrinting(Printing, true);
+ std::pair<ReferenceKind, const Node *> Collapsed = collapse(OB);
+ if (!Collapsed.second)
+ return;
+ Collapsed.second->printLeft(OB);
+ if (Collapsed.second->hasArray(OB))
+ OB += " ";
+ if (Collapsed.second->hasArray(OB) || Collapsed.second->hasFunction(OB))
+ OB += "(";
- s += (Collapsed.first == ReferenceKind::LValue ? "&" : "&&");
+ OB += (Collapsed.first == ReferenceKind::LValue ? "&" : "&&");
}
- void printRight(OutputStream &s) const override {
+ void printRight(OutputBuffer &OB) const override {
if (Printing)
return;
- SwapAndRestore<bool> SavePrinting(Printing, true);
- std::pair<ReferenceKind, const Node *> Collapsed = collapse(s);
- if (Collapsed.second->hasArray(s) || Collapsed.second->hasFunction(s))
- s += ")";
- Collapsed.second->printRight(s);
+ ScopedOverride<bool> SavePrinting(Printing, true);
+ std::pair<ReferenceKind, const Node *> Collapsed = collapse(OB);
+ if (!Collapsed.second)
+ return;
+ if (Collapsed.second->hasArray(OB) || Collapsed.second->hasFunction(OB))
+ OB += ")";
+ Collapsed.second->printRight(OB);
}
};
@@ -587,69 +727,33 @@ public:
template<typename Fn> void match(Fn F) const { F(ClassType, MemberType); }
- bool hasRHSComponentSlow(OutputStream &S) const override {
- return MemberType->hasRHSComponent(S);
+ bool hasRHSComponentSlow(OutputBuffer &OB) const override {
+ return MemberType->hasRHSComponent(OB);
}
- void printLeft(OutputStream &s) const override {
- MemberType->printLeft(s);
- if (MemberType->hasArray(s) || MemberType->hasFunction(s))
- s += "(";
+ void printLeft(OutputBuffer &OB) const override {
+ MemberType->printLeft(OB);
+ if (MemberType->hasArray(OB) || MemberType->hasFunction(OB))
+ OB += "(";
else
- s += " ";
- ClassType->print(s);
- s += "::*";
+ OB += " ";
+ ClassType->print(OB);
+ OB += "::*";
}
- void printRight(OutputStream &s) const override {
- if (MemberType->hasArray(s) || MemberType->hasFunction(s))
- s += ")";
- MemberType->printRight(s);
- }
-};
-
-class NodeOrString {
- const void *First;
- const void *Second;
-
-public:
- /* implicit */ NodeOrString(StringView Str) {
- const char *FirstChar = Str.begin();
- const char *SecondChar = Str.end();
- if (SecondChar == nullptr) {
- assert(FirstChar == SecondChar);
- ++FirstChar, ++SecondChar;
- }
- First = static_cast<const void *>(FirstChar);
- Second = static_cast<const void *>(SecondChar);
- }
-
- /* implicit */ NodeOrString(Node *N)
- : First(static_cast<const void *>(N)), Second(nullptr) {}
- NodeOrString() : First(nullptr), Second(nullptr) {}
-
- bool isString() const { return Second && First; }
- bool isNode() const { return First && !Second; }
- bool isEmpty() const { return !First && !Second; }
-
- StringView asString() const {
- assert(isString());
- return StringView(static_cast<const char *>(First),
- static_cast<const char *>(Second));
- }
-
- const Node *asNode() const {
- assert(isNode());
- return static_cast<const Node *>(First);
+ void printRight(OutputBuffer &OB) const override {
+ if (MemberType->hasArray(OB) || MemberType->hasFunction(OB))
+ OB += ")";
+ MemberType->printRight(OB);
}
};
class ArrayType final : public Node {
const Node *Base;
- NodeOrString Dimension;
+ Node *Dimension;
public:
- ArrayType(const Node *Base_, NodeOrString Dimension_)
+ ArrayType(const Node *Base_, Node *Dimension_)
: Node(KArrayType,
/*RHSComponentCache=*/Cache::Yes,
/*ArrayCache=*/Cache::Yes),
@@ -657,21 +761,19 @@ public:
template<typename Fn> void match(Fn F) const { F(Base, Dimension); }
- bool hasRHSComponentSlow(OutputStream &) const override { return true; }
- bool hasArraySlow(OutputStream &) const override { return true; }
+ bool hasRHSComponentSlow(OutputBuffer &) const override { return true; }
+ bool hasArraySlow(OutputBuffer &) const override { return true; }
- void printLeft(OutputStream &S) const override { Base->printLeft(S); }
+ void printLeft(OutputBuffer &OB) const override { Base->printLeft(OB); }
- void printRight(OutputStream &S) const override {
- if (S.back() != ']')
- S += " ";
- S += "[";
- if (Dimension.isString())
- S += Dimension.asString();
- else if (Dimension.isNode())
- Dimension.asNode()->print(S);
- S += "]";
- Base->printRight(S);
+ void printRight(OutputBuffer &OB) const override {
+ if (OB.back() != ']')
+ OB += " ";
+ OB += "[";
+ if (Dimension)
+ Dimension->print(OB);
+ OB += "]";
+ Base->printRight(OB);
}
};
@@ -695,8 +797,8 @@ public:
F(Ret, Params, CVQuals, RefQual, ExceptionSpec);
}
- bool hasRHSComponentSlow(OutputStream &) const override { return true; }
- bool hasFunctionSlow(OutputStream &) const override { return true; }
+ bool hasRHSComponentSlow(OutputBuffer &) const override { return true; }
+ bool hasFunctionSlow(OutputBuffer &) const override { return true; }
// Handle C++'s ... quirky decl grammar by using the left & right
// distinction. Consider:
@@ -705,32 +807,32 @@ public:
// that takes a char and returns an int. If we're trying to print f, start
// by printing out the return types's left, then print our parameters, then
// finally print right of the return type.
- void printLeft(OutputStream &S) const override {
- Ret->printLeft(S);
- S += " ";
+ void printLeft(OutputBuffer &OB) const override {
+ Ret->printLeft(OB);
+ OB += " ";
}
- void printRight(OutputStream &S) const override {
- S += "(";
- Params.printWithComma(S);
- S += ")";
- Ret->printRight(S);
+ void printRight(OutputBuffer &OB) const override {
+ OB.printOpen();
+ Params.printWithComma(OB);
+ OB.printClose();
+ Ret->printRight(OB);
if (CVQuals & QualConst)
- S += " const";
+ OB += " const";
if (CVQuals & QualVolatile)
- S += " volatile";
+ OB += " volatile";
if (CVQuals & QualRestrict)
- S += " restrict";
+ OB += " restrict";
if (RefQual == FrefQualLValue)
- S += " &";
+ OB += " &";
else if (RefQual == FrefQualRValue)
- S += " &&";
+ OB += " &&";
if (ExceptionSpec != nullptr) {
- S += ' ';
- ExceptionSpec->print(S);
+ OB += ' ';
+ ExceptionSpec->print(OB);
}
}
};
@@ -742,10 +844,11 @@ public:
template<typename Fn> void match(Fn F) const { F(E); }
- void printLeft(OutputStream &S) const override {
- S += "noexcept(";
- E->print(S);
- S += ")";
+ void printLeft(OutputBuffer &OB) const override {
+ OB += "noexcept";
+ OB.printOpen();
+ E->printAsOperand(OB);
+ OB.printClose();
}
};
@@ -757,10 +860,11 @@ public:
template<typename Fn> void match(Fn F) const { F(Types); }
- void printLeft(OutputStream &S) const override {
- S += "throw(";
- Types.printWithComma(S);
- S += ')';
+ void printLeft(OutputBuffer &OB) const override {
+ OB += "throw";
+ OB.printOpen();
+ Types.printWithComma(OB);
+ OB.printClose();
}
};
@@ -791,41 +895,41 @@ public:
NodeArray getParams() const { return Params; }
const Node *getReturnType() const { return Ret; }
- bool hasRHSComponentSlow(OutputStream &) const override { return true; }
- bool hasFunctionSlow(OutputStream &) const override { return true; }
+ bool hasRHSComponentSlow(OutputBuffer &) const override { return true; }
+ bool hasFunctionSlow(OutputBuffer &) const override { return true; }
const Node *getName() const { return Name; }
- void printLeft(OutputStream &S) const override {
+ void printLeft(OutputBuffer &OB) const override {
if (Ret) {
- Ret->printLeft(S);
- if (!Ret->hasRHSComponent(S))
- S += " ";
+ Ret->printLeft(OB);
+ if (!Ret->hasRHSComponent(OB))
+ OB += " ";
}
- Name->print(S);
+ Name->print(OB);
}
- void printRight(OutputStream &S) const override {
- S += "(";
- Params.printWithComma(S);
- S += ")";
+ void printRight(OutputBuffer &OB) const override {
+ OB.printOpen();
+ Params.printWithComma(OB);
+ OB.printClose();
if (Ret)
- Ret->printRight(S);
+ Ret->printRight(OB);
if (CVQuals & QualConst)
- S += " const";
+ OB += " const";
if (CVQuals & QualVolatile)
- S += " volatile";
+ OB += " volatile";
if (CVQuals & QualRestrict)
- S += " restrict";
+ OB += " restrict";
if (RefQual == FrefQualLValue)
- S += " &";
+ OB += " &";
else if (RefQual == FrefQualRValue)
- S += " &&";
+ OB += " &&";
if (Attrs != nullptr)
- Attrs->print(S);
+ Attrs->print(OB);
}
};
@@ -838,25 +942,25 @@ public:
template<typename Fn> void match(Fn F) const { F(OpName); }
- void printLeft(OutputStream &S) const override {
- S += "operator\"\" ";
- OpName->print(S);
+ void printLeft(OutputBuffer &OB) const override {
+ OB += "operator\"\" ";
+ OpName->print(OB);
}
};
class SpecialName final : public Node {
- const StringView Special;
+ const std::string_view Special;
const Node *Child;
public:
- SpecialName(StringView Special_, const Node *Child_)
+ SpecialName(std::string_view Special_, const Node *Child_)
: Node(KSpecialName), Special(Special_), Child(Child_) {}
template<typename Fn> void match(Fn F) const { F(Special, Child); }
- void printLeft(OutputStream &S) const override {
- S += Special;
- Child->print(S);
+ void printLeft(OutputBuffer &OB) const override {
+ OB += Special;
+ Child->print(OB);
}
};
@@ -871,11 +975,11 @@ public:
template<typename Fn> void match(Fn F) const { F(FirstType, SecondType); }
- void printLeft(OutputStream &S) const override {
- S += "construction vtable for ";
- FirstType->print(S);
- S += "-in-";
- SecondType->print(S);
+ void printLeft(OutputBuffer &OB) const override {
+ OB += "construction vtable for ";
+ FirstType->print(OB);
+ OB += "-in-";
+ SecondType->print(OB);
}
};
@@ -888,12 +992,52 @@ struct NestedName : Node {
template<typename Fn> void match(Fn F) const { F(Qual, Name); }
- StringView getBaseName() const override { return Name->getBaseName(); }
+ std::string_view getBaseName() const override { return Name->getBaseName(); }
- void printLeft(OutputStream &S) const override {
- Qual->print(S);
- S += "::";
- Name->print(S);
+ void printLeft(OutputBuffer &OB) const override {
+ Qual->print(OB);
+ OB += "::";
+ Name->print(OB);
+ }
+};
+
+struct ModuleName : Node {
+ ModuleName *Parent;
+ Node *Name;
+ bool IsPartition;
+
+ ModuleName(ModuleName *Parent_, Node *Name_, bool IsPartition_ = false)
+ : Node(KModuleName), Parent(Parent_), Name(Name_),
+ IsPartition(IsPartition_) {}
+
+ template <typename Fn> void match(Fn F) const {
+ F(Parent, Name, IsPartition);
+ }
+
+ void printLeft(OutputBuffer &OB) const override {
+ if (Parent)
+ Parent->print(OB);
+ if (Parent || IsPartition)
+ OB += IsPartition ? ':' : '.';
+ Name->print(OB);
+ }
+};
+
+struct ModuleEntity : Node {
+ ModuleName *Module;
+ Node *Name;
+
+ ModuleEntity(ModuleName *Module_, Node *Name_)
+ : Node(KModuleEntity), Module(Module_), Name(Name_) {}
+
+ template <typename Fn> void match(Fn F) const { F(Module, Name); }
+
+ std::string_view getBaseName() const override { return Name->getBaseName(); }
+
+ void printLeft(OutputBuffer &OB) const override {
+ Name->print(OB);
+ OB += '@';
+ Module->print(OB);
}
};
@@ -906,10 +1050,10 @@ struct LocalName : Node {
template<typename Fn> void match(Fn F) const { F(Encoding, Entity); }
- void printLeft(OutputStream &S) const override {
- Encoding->print(S);
- S += "::";
- Entity->print(S);
+ void printLeft(OutputBuffer &OB) const override {
+ Encoding->print(OB);
+ OB += "::";
+ Entity->print(OB);
}
};
@@ -924,51 +1068,66 @@ public:
template<typename Fn> void match(Fn F) const { F(Qualifier, Name); }
- StringView getBaseName() const override { return Name->getBaseName(); }
+ std::string_view getBaseName() const override { return Name->getBaseName(); }
- void printLeft(OutputStream &S) const override {
- Qualifier->print(S);
- S += "::";
- Name->print(S);
+ void printLeft(OutputBuffer &OB) const override {
+ Qualifier->print(OB);
+ OB += "::";
+ Name->print(OB);
}
};
class VectorType final : public Node {
const Node *BaseType;
- const NodeOrString Dimension;
+ const Node *Dimension;
public:
- VectorType(const Node *BaseType_, NodeOrString Dimension_)
- : Node(KVectorType), BaseType(BaseType_),
- Dimension(Dimension_) {}
+ VectorType(const Node *BaseType_, const Node *Dimension_)
+ : Node(KVectorType), BaseType(BaseType_), Dimension(Dimension_) {}
+
+ const Node *getBaseType() const { return BaseType; }
+ const Node *getDimension() const { return Dimension; }
template<typename Fn> void match(Fn F) const { F(BaseType, Dimension); }
- void printLeft(OutputStream &S) const override {
- BaseType->print(S);
- S += " vector[";
- if (Dimension.isNode())
- Dimension.asNode()->print(S);
- else if (Dimension.isString())
- S += Dimension.asString();
- S += "]";
+ void printLeft(OutputBuffer &OB) const override {
+ BaseType->print(OB);
+ OB += " vector[";
+ if (Dimension)
+ Dimension->print(OB);
+ OB += "]";
}
};
class PixelVectorType final : public Node {
- const NodeOrString Dimension;
+ const Node *Dimension;
public:
- PixelVectorType(NodeOrString Dimension_)
+ PixelVectorType(const Node *Dimension_)
: Node(KPixelVectorType), Dimension(Dimension_) {}
template<typename Fn> void match(Fn F) const { F(Dimension); }
- void printLeft(OutputStream &S) const override {
+ void printLeft(OutputBuffer &OB) const override {
// FIXME: This should demangle as "vector pixel".
- S += "pixel vector[";
- S += Dimension.asString();
- S += "]";
+ OB += "pixel vector[";
+ Dimension->print(OB);
+ OB += "]";
+ }
+};
+
+class BinaryFPType final : public Node {
+ const Node *Dimension;
+
+public:
+ BinaryFPType(const Node *Dimension_)
+ : Node(KBinaryFPType), Dimension(Dimension_) {}
+
+ template<typename Fn> void match(Fn F) const { F(Dimension); }
+
+ void printLeft(OutputBuffer &OB) const override {
+ OB += "_Float";
+ Dimension->print(OB);
}
};
@@ -990,20 +1149,20 @@ public:
template<typename Fn> void match(Fn F) const { F(Kind, Index); }
- void printLeft(OutputStream &S) const override {
+ void printLeft(OutputBuffer &OB) const override {
switch (Kind) {
case TemplateParamKind::Type:
- S += "$T";
+ OB += "$T";
break;
case TemplateParamKind::NonType:
- S += "$N";
+ OB += "$N";
break;
case TemplateParamKind::Template:
- S += "$TT";
+ OB += "$TT";
break;
}
if (Index > 0)
- S << Index - 1;
+ OB << Index - 1;
}
};
@@ -1017,13 +1176,9 @@ public:
template<typename Fn> void match(Fn F) const { F(Name); }
- void printLeft(OutputStream &S) const override {
- S += "typename ";
- }
+ void printLeft(OutputBuffer &OB) const override { OB += "typename "; }
- void printRight(OutputStream &S) const override {
- Name->print(S);
- }
+ void printRight(OutputBuffer &OB) const override { Name->print(OB); }
};
/// A non-type template parameter declaration, 'int N'.
@@ -1037,15 +1192,15 @@ public:
template<typename Fn> void match(Fn F) const { F(Name, Type); }
- void printLeft(OutputStream &S) const override {
- Type->printLeft(S);
- if (!Type->hasRHSComponent(S))
- S += " ";
+ void printLeft(OutputBuffer &OB) const override {
+ Type->printLeft(OB);
+ if (!Type->hasRHSComponent(OB))
+ OB += " ";
}
- void printRight(OutputStream &S) const override {
- Name->print(S);
- Type->printRight(S);
+ void printRight(OutputBuffer &OB) const override {
+ Name->print(OB);
+ Type->printRight(OB);
}
};
@@ -1062,15 +1217,14 @@ public:
template<typename Fn> void match(Fn F) const { F(Name, Params); }
- void printLeft(OutputStream &S) const override {
- S += "template<";
- Params.printWithComma(S);
- S += "> typename ";
+ void printLeft(OutputBuffer &OB) const override {
+ ScopedOverride<unsigned> LT(OB.GtIsGt, 0);
+ OB += "template<";
+ Params.printWithComma(OB);
+ OB += "> typename ";
}
- void printRight(OutputStream &S) const override {
- Name->print(S);
- }
+ void printRight(OutputBuffer &OB) const override { Name->print(OB); }
};
/// A template parameter pack declaration, 'typename ...T'.
@@ -1083,14 +1237,12 @@ public:
template<typename Fn> void match(Fn F) const { F(Param); }
- void printLeft(OutputStream &S) const override {
- Param->printLeft(S);
- S += "...";
+ void printLeft(OutputBuffer &OB) const override {
+ Param->printLeft(OB);
+ OB += "...";
}
- void printRight(OutputStream &S) const override {
- Param->printRight(S);
- }
+ void printRight(OutputBuffer &OB) const override { Param->printRight(OB); }
};
/// An unexpanded parameter pack (either in the expression or type context). If
@@ -1104,11 +1256,12 @@ public:
class ParameterPack final : public Node {
NodeArray Data;
- // Setup OutputStream for a pack expansion unless we're already expanding one.
- void initializePackExpansion(OutputStream &S) const {
- if (S.CurrentPackMax == std::numeric_limits<unsigned>::max()) {
- S.CurrentPackMax = static_cast<unsigned>(Data.size());
- S.CurrentPackIndex = 0;
+ // Setup OutputBuffer for a pack expansion, unless we're already expanding
+ // one.
+ void initializePackExpansion(OutputBuffer &OB) const {
+ if (OB.CurrentPackMax == std::numeric_limits<unsigned>::max()) {
+ OB.CurrentPackMax = static_cast<unsigned>(Data.size());
+ OB.CurrentPackIndex = 0;
}
}
@@ -1131,38 +1284,38 @@ public:
template<typename Fn> void match(Fn F) const { F(Data); }
- bool hasRHSComponentSlow(OutputStream &S) const override {
- initializePackExpansion(S);
- size_t Idx = S.CurrentPackIndex;
- return Idx < Data.size() && Data[Idx]->hasRHSComponent(S);
+ bool hasRHSComponentSlow(OutputBuffer &OB) const override {
+ initializePackExpansion(OB);
+ size_t Idx = OB.CurrentPackIndex;
+ return Idx < Data.size() && Data[Idx]->hasRHSComponent(OB);
}
- bool hasArraySlow(OutputStream &S) const override {
- initializePackExpansion(S);
- size_t Idx = S.CurrentPackIndex;
- return Idx < Data.size() && Data[Idx]->hasArray(S);
+ bool hasArraySlow(OutputBuffer &OB) const override {
+ initializePackExpansion(OB);
+ size_t Idx = OB.CurrentPackIndex;
+ return Idx < Data.size() && Data[Idx]->hasArray(OB);
}
- bool hasFunctionSlow(OutputStream &S) const override {
- initializePackExpansion(S);
- size_t Idx = S.CurrentPackIndex;
- return Idx < Data.size() && Data[Idx]->hasFunction(S);
+ bool hasFunctionSlow(OutputBuffer &OB) const override {
+ initializePackExpansion(OB);
+ size_t Idx = OB.CurrentPackIndex;
+ return Idx < Data.size() && Data[Idx]->hasFunction(OB);
}
- const Node *getSyntaxNode(OutputStream &S) const override {
- initializePackExpansion(S);
- size_t Idx = S.CurrentPackIndex;
- return Idx < Data.size() ? Data[Idx]->getSyntaxNode(S) : this;
+ const Node *getSyntaxNode(OutputBuffer &OB) const override {
+ initializePackExpansion(OB);
+ size_t Idx = OB.CurrentPackIndex;
+ return Idx < Data.size() ? Data[Idx]->getSyntaxNode(OB) : this;
}
- void printLeft(OutputStream &S) const override {
- initializePackExpansion(S);
- size_t Idx = S.CurrentPackIndex;
+ void printLeft(OutputBuffer &OB) const override {
+ initializePackExpansion(OB);
+ size_t Idx = OB.CurrentPackIndex;
if (Idx < Data.size())
- Data[Idx]->printLeft(S);
+ Data[Idx]->printLeft(OB);
}
- void printRight(OutputStream &S) const override {
- initializePackExpansion(S);
- size_t Idx = S.CurrentPackIndex;
+ void printRight(OutputBuffer &OB) const override {
+ initializePackExpansion(OB);
+ size_t Idx = OB.CurrentPackIndex;
if (Idx < Data.size())
- Data[Idx]->printRight(S);
+ Data[Idx]->printRight(OB);
}
};
@@ -1181,8 +1334,8 @@ public:
NodeArray getElements() const { return Elements; }
- void printLeft(OutputStream &S) const override {
- Elements.printWithComma(S);
+ void printLeft(OutputBuffer &OB) const override {
+ Elements.printWithComma(OB);
}
};
@@ -1199,35 +1352,35 @@ public:
const Node *getChild() const { return Child; }
- void printLeft(OutputStream &S) const override {
+ void printLeft(OutputBuffer &OB) const override {
constexpr unsigned Max = std::numeric_limits<unsigned>::max();
- SwapAndRestore<unsigned> SavePackIdx(S.CurrentPackIndex, Max);
- SwapAndRestore<unsigned> SavePackMax(S.CurrentPackMax, Max);
- size_t StreamPos = S.getCurrentPosition();
+ ScopedOverride<unsigned> SavePackIdx(OB.CurrentPackIndex, Max);
+ ScopedOverride<unsigned> SavePackMax(OB.CurrentPackMax, Max);
+ size_t StreamPos = OB.getCurrentPosition();
// Print the first element in the pack. If Child contains a ParameterPack,
// it will set up S.CurrentPackMax and print the first element.
- Child->print(S);
+ Child->print(OB);
// No ParameterPack was found in Child. This can occur if we've found a pack
// expansion on a <function-param>.
- if (S.CurrentPackMax == Max) {
- S += "...";
+ if (OB.CurrentPackMax == Max) {
+ OB += "...";
return;
}
// We found a ParameterPack, but it has no elements. Erase whatever we may
// of printed.
- if (S.CurrentPackMax == 0) {
- S.setCurrentPosition(StreamPos);
+ if (OB.CurrentPackMax == 0) {
+ OB.setCurrentPosition(StreamPos);
return;
}
// Else, iterate through the rest of the elements in the pack.
- for (unsigned I = 1, E = S.CurrentPackMax; I < E; ++I) {
- S += ", ";
- S.CurrentPackIndex = I;
- Child->print(S);
+ for (unsigned I = 1, E = OB.CurrentPackMax; I < E; ++I) {
+ OB += ", ";
+ OB.CurrentPackIndex = I;
+ Child->print(OB);
}
}
};
@@ -1242,12 +1395,11 @@ public:
NodeArray getParams() { return Params; }
- void printLeft(OutputStream &S) const override {
- S += "<";
- Params.printWithComma(S);
- if (S.back() == '>')
- S += " ";
- S += ">";
+ void printLeft(OutputBuffer &OB) const override {
+ ScopedOverride<unsigned> LT(OB.GtIsGt, 0);
+ OB += "<";
+ Params.printWithComma(OB);
+ OB += ">";
}
};
@@ -1289,42 +1441,42 @@ struct ForwardTemplateReference : Node {
// special handling.
template<typename Fn> void match(Fn F) const = delete;
- bool hasRHSComponentSlow(OutputStream &S) const override {
+ bool hasRHSComponentSlow(OutputBuffer &OB) const override {
if (Printing)
return false;
- SwapAndRestore<bool> SavePrinting(Printing, true);
- return Ref->hasRHSComponent(S);
+ ScopedOverride<bool> SavePrinting(Printing, true);
+ return Ref->hasRHSComponent(OB);
}
- bool hasArraySlow(OutputStream &S) const override {
+ bool hasArraySlow(OutputBuffer &OB) const override {
if (Printing)
return false;
- SwapAndRestore<bool> SavePrinting(Printing, true);
- return Ref->hasArray(S);
+ ScopedOverride<bool> SavePrinting(Printing, true);
+ return Ref->hasArray(OB);
}
- bool hasFunctionSlow(OutputStream &S) const override {
+ bool hasFunctionSlow(OutputBuffer &OB) const override {
if (Printing)
return false;
- SwapAndRestore<bool> SavePrinting(Printing, true);
- return Ref->hasFunction(S);
+ ScopedOverride<bool> SavePrinting(Printing, true);
+ return Ref->hasFunction(OB);
}
- const Node *getSyntaxNode(OutputStream &S) const override {
+ const Node *getSyntaxNode(OutputBuffer &OB) const override {
if (Printing)
return this;
- SwapAndRestore<bool> SavePrinting(Printing, true);
- return Ref->getSyntaxNode(S);
+ ScopedOverride<bool> SavePrinting(Printing, true);
+ return Ref->getSyntaxNode(OB);
}
- void printLeft(OutputStream &S) const override {
+ void printLeft(OutputBuffer &OB) const override {
if (Printing)
return;
- SwapAndRestore<bool> SavePrinting(Printing, true);
- Ref->printLeft(S);
+ ScopedOverride<bool> SavePrinting(Printing, true);
+ Ref->printLeft(OB);
}
- void printRight(OutputStream &S) const override {
+ void printRight(OutputBuffer &OB) const override {
if (Printing)
return;
- SwapAndRestore<bool> SavePrinting(Printing, true);
- Ref->printRight(S);
+ ScopedOverride<bool> SavePrinting(Printing, true);
+ Ref->printRight(OB);
}
};
@@ -1338,11 +1490,11 @@ struct NameWithTemplateArgs : Node {
template<typename Fn> void match(Fn F) const { F(Name, TemplateArgs); }
- StringView getBaseName() const override { return Name->getBaseName(); }
+ std::string_view getBaseName() const override { return Name->getBaseName(); }
- void printLeft(OutputStream &S) const override {
- Name->print(S);
- TemplateArgs->print(S);
+ void printLeft(OutputBuffer &OB) const override {
+ Name->print(OB);
+ TemplateArgs->print(OB);
}
};
@@ -1355,26 +1507,11 @@ public:
template<typename Fn> void match(Fn F) const { F(Child); }
- StringView getBaseName() const override { return Child->getBaseName(); }
+ std::string_view getBaseName() const override { return Child->getBaseName(); }
- void printLeft(OutputStream &S) const override {
- S += "::";
- Child->print(S);
- }
-};
-
-struct StdQualifiedName : Node {
- Node *Child;
-
- StdQualifiedName(Node *Child_) : Node(KStdQualifiedName), Child(Child_) {}
-
- template<typename Fn> void match(Fn F) const { F(Child); }
-
- StringView getBaseName() const override { return Child->getBaseName(); }
-
- void printLeft(OutputStream &S) const override {
- S += "std::";
- Child->print(S);
+ void printLeft(OutputBuffer &OB) const override {
+ OB += "::";
+ Child->print(OB);
}
};
@@ -1387,109 +1524,81 @@ enum class SpecialSubKind {
iostream,
};
-class ExpandedSpecialSubstitution final : public Node {
+class SpecialSubstitution;
+class ExpandedSpecialSubstitution : public Node {
+protected:
SpecialSubKind SSK;
+ ExpandedSpecialSubstitution(SpecialSubKind SSK_, Kind K_)
+ : Node(K_), SSK(SSK_) {}
public:
ExpandedSpecialSubstitution(SpecialSubKind SSK_)
- : Node(KExpandedSpecialSubstitution), SSK(SSK_) {}
+ : ExpandedSpecialSubstitution(SSK_, KExpandedSpecialSubstitution) {}
+ inline ExpandedSpecialSubstitution(SpecialSubstitution const *);
template<typename Fn> void match(Fn F) const { F(SSK); }
- StringView getBaseName() const override {
+protected:
+ bool isInstantiation() const {
+ return unsigned(SSK) >= unsigned(SpecialSubKind::string);
+ }
+
+ std::string_view getBaseName() const override {
switch (SSK) {
case SpecialSubKind::allocator:
- return StringView("allocator");
+ return {"allocator"};
case SpecialSubKind::basic_string:
- return StringView("basic_string");
+ return {"basic_string"};
case SpecialSubKind::string:
- return StringView("basic_string");
+ return {"basic_string"};
case SpecialSubKind::istream:
- return StringView("basic_istream");
+ return {"basic_istream"};
case SpecialSubKind::ostream:
- return StringView("basic_ostream");
+ return {"basic_ostream"};
case SpecialSubKind::iostream:
- return StringView("basic_iostream");
+ return {"basic_iostream"};
}
DEMANGLE_UNREACHABLE;
}
- void printLeft(OutputStream &S) const override {
- switch (SSK) {
- case SpecialSubKind::allocator:
- S += "std::allocator";
- break;
- case SpecialSubKind::basic_string:
- S += "std::basic_string";
- break;
- case SpecialSubKind::string:
- S += "std::basic_string<char, std::char_traits<char>, "
- "std::allocator<char> >";
- break;
- case SpecialSubKind::istream:
- S += "std::basic_istream<char, std::char_traits<char> >";
- break;
- case SpecialSubKind::ostream:
- S += "std::basic_ostream<char, std::char_traits<char> >";
- break;
- case SpecialSubKind::iostream:
- S += "std::basic_iostream<char, std::char_traits<char> >";
- break;
+private:
+ void printLeft(OutputBuffer &OB) const override {
+ OB << "std::" << getBaseName();
+ if (isInstantiation()) {
+ OB << "<char, std::char_traits<char>";
+ if (SSK == SpecialSubKind::string)
+ OB << ", std::allocator<char>";
+ OB << ">";
}
}
};
-class SpecialSubstitution final : public Node {
+class SpecialSubstitution final : public ExpandedSpecialSubstitution {
public:
- SpecialSubKind SSK;
-
SpecialSubstitution(SpecialSubKind SSK_)
- : Node(KSpecialSubstitution), SSK(SSK_) {}
+ : ExpandedSpecialSubstitution(SSK_, KSpecialSubstitution) {}
template<typename Fn> void match(Fn F) const { F(SSK); }
- StringView getBaseName() const override {
- switch (SSK) {
- case SpecialSubKind::allocator:
- return StringView("allocator");
- case SpecialSubKind::basic_string:
- return StringView("basic_string");
- case SpecialSubKind::string:
- return StringView("string");
- case SpecialSubKind::istream:
- return StringView("istream");
- case SpecialSubKind::ostream:
- return StringView("ostream");
- case SpecialSubKind::iostream:
- return StringView("iostream");
+ std::string_view getBaseName() const override {
+ std::string_view SV = ExpandedSpecialSubstitution::getBaseName();
+ if (isInstantiation()) {
+ // The instantiations are typedefs that drop the "basic_" prefix.
+ assert(llvm::itanium_demangle::starts_with(SV, "basic_"));
+ SV.remove_prefix(sizeof("basic_") - 1);
}
- DEMANGLE_UNREACHABLE;
+ return SV;
}
- void printLeft(OutputStream &S) const override {
- switch (SSK) {
- case SpecialSubKind::allocator:
- S += "std::allocator";
- break;
- case SpecialSubKind::basic_string:
- S += "std::basic_string";
- break;
- case SpecialSubKind::string:
- S += "std::string";
- break;
- case SpecialSubKind::istream:
- S += "std::istream";
- break;
- case SpecialSubKind::ostream:
- S += "std::ostream";
- break;
- case SpecialSubKind::iostream:
- S += "std::iostream";
- break;
- }
+ void printLeft(OutputBuffer &OB) const override {
+ OB << "std::" << getBaseName();
}
};
+inline ExpandedSpecialSubstitution::ExpandedSpecialSubstitution(
+ SpecialSubstitution const *SS)
+ : ExpandedSpecialSubstitution(SS->SSK) {}
+
class CtorDtorName final : public Node {
const Node *Basename;
const bool IsDtor;
@@ -1502,10 +1611,10 @@ public:
template<typename Fn> void match(Fn F) const { F(Basename, IsDtor, Variant); }
- void printLeft(OutputStream &S) const override {
+ void printLeft(OutputBuffer &OB) const override {
if (IsDtor)
- S += "~";
- S += Basename->getBaseName();
+ OB += "~";
+ OB += Basename->getBaseName();
}
};
@@ -1517,35 +1626,36 @@ public:
template<typename Fn> void match(Fn F) const { F(Base); }
- void printLeft(OutputStream &S) const override {
- S += "~";
- Base->printLeft(S);
+ void printLeft(OutputBuffer &OB) const override {
+ OB += "~";
+ Base->printLeft(OB);
}
};
class UnnamedTypeName : public Node {
- const StringView Count;
+ const std::string_view Count;
public:
- UnnamedTypeName(StringView Count_) : Node(KUnnamedTypeName), Count(Count_) {}
+ UnnamedTypeName(std::string_view Count_)
+ : Node(KUnnamedTypeName), Count(Count_) {}
template<typename Fn> void match(Fn F) const { F(Count); }
- void printLeft(OutputStream &S) const override {
- S += "'unnamed";
- S += Count;
- S += "\'";
+ void printLeft(OutputBuffer &OB) const override {
+ OB += "'unnamed";
+ OB += Count;
+ OB += "\'";
}
};
class ClosureTypeName : public Node {
NodeArray TemplateParams;
NodeArray Params;
- StringView Count;
+ std::string_view Count;
public:
ClosureTypeName(NodeArray TemplateParams_, NodeArray Params_,
- StringView Count_)
+ std::string_view Count_)
: Node(KClosureTypeName), TemplateParams(TemplateParams_),
Params(Params_), Count(Count_) {}
@@ -1553,22 +1663,23 @@ public:
F(TemplateParams, Params, Count);
}
- void printDeclarator(OutputStream &S) const {
+ void printDeclarator(OutputBuffer &OB) const {
if (!TemplateParams.empty()) {
- S += "<";
- TemplateParams.printWithComma(S);
- S += ">";
+ ScopedOverride<unsigned> LT(OB.GtIsGt, 0);
+ OB += "<";
+ TemplateParams.printWithComma(OB);
+ OB += ">";
}
- S += "(";
- Params.printWithComma(S);
- S += ")";
+ OB.printOpen();
+ Params.printWithComma(OB);
+ OB.printClose();
}
- void printLeft(OutputStream &S) const override {
- S += "\'lambda";
- S += Count;
- S += "\'";
- printDeclarator(S);
+ void printLeft(OutputBuffer &OB) const override {
+ OB += "\'lambda";
+ OB += Count;
+ OB += "\'";
+ printDeclarator(OB);
}
};
@@ -1580,10 +1691,10 @@ public:
template<typename Fn> void match(Fn F) const { F(Bindings); }
- void printLeft(OutputStream &S) const override {
- S += '[';
- Bindings.printWithComma(S);
- S += ']';
+ void printLeft(OutputBuffer &OB) const override {
+ OB.printOpen('[');
+ Bindings.printWithComma(OB);
+ OB.printClose(']');
}
};
@@ -1591,32 +1702,35 @@ public:
class BinaryExpr : public Node {
const Node *LHS;
- const StringView InfixOperator;
+ const std::string_view InfixOperator;
const Node *RHS;
public:
- BinaryExpr(const Node *LHS_, StringView InfixOperator_, const Node *RHS_)
- : Node(KBinaryExpr), LHS(LHS_), InfixOperator(InfixOperator_), RHS(RHS_) {
+ BinaryExpr(const Node *LHS_, std::string_view InfixOperator_,
+ const Node *RHS_, Prec Prec_)
+ : Node(KBinaryExpr, Prec_), LHS(LHS_), InfixOperator(InfixOperator_),
+ RHS(RHS_) {}
+
+ template <typename Fn> void match(Fn F) const {
+ F(LHS, InfixOperator, RHS, getPrecedence());
}
- template<typename Fn> void match(Fn F) const { F(LHS, InfixOperator, RHS); }
-
- void printLeft(OutputStream &S) const override {
- // might be a template argument expression, then we need to disambiguate
- // with parens.
- if (InfixOperator == ">")
- S += "(";
-
- S += "(";
- LHS->print(S);
- S += ") ";
- S += InfixOperator;
- S += " (";
- RHS->print(S);
- S += ")";
-
- if (InfixOperator == ">")
- S += ")";
+ void printLeft(OutputBuffer &OB) const override {
+ bool ParenAll = OB.isGtInsideTemplateArgs() &&
+ (InfixOperator == ">" || InfixOperator == ">>");
+ if (ParenAll)
+ OB.printOpen();
+ // Assignment is right associative, with special LHS precedence.
+ bool IsAssign = getPrecedence() == Prec::Assign;
+ LHS->printAsOperand(OB, IsAssign ? Prec::OrIf : getPrecedence(), !IsAssign);
+ // No space before comma operator
+ if (!(InfixOperator == ","))
+ OB += " ";
+ OB += InfixOperator;
+ OB += " ";
+ RHS->printAsOperand(OB, getPrecedence(), IsAssign);
+ if (ParenAll)
+ OB.printClose();
}
};
@@ -1625,35 +1739,36 @@ class ArraySubscriptExpr : public Node {
const Node *Op2;
public:
- ArraySubscriptExpr(const Node *Op1_, const Node *Op2_)
- : Node(KArraySubscriptExpr), Op1(Op1_), Op2(Op2_) {}
+ ArraySubscriptExpr(const Node *Op1_, const Node *Op2_, Prec Prec_)
+ : Node(KArraySubscriptExpr, Prec_), Op1(Op1_), Op2(Op2_) {}
- template<typename Fn> void match(Fn F) const { F(Op1, Op2); }
+ template <typename Fn> void match(Fn F) const {
+ F(Op1, Op2, getPrecedence());
+ }
- void printLeft(OutputStream &S) const override {
- S += "(";
- Op1->print(S);
- S += ")[";
- Op2->print(S);
- S += "]";
+ void printLeft(OutputBuffer &OB) const override {
+ Op1->printAsOperand(OB, getPrecedence());
+ OB.printOpen('[');
+ Op2->printAsOperand(OB);
+ OB.printClose(']');
}
};
class PostfixExpr : public Node {
const Node *Child;
- const StringView Operator;
+ const std::string_view Operator;
public:
- PostfixExpr(const Node *Child_, StringView Operator_)
- : Node(KPostfixExpr), Child(Child_), Operator(Operator_) {}
+ PostfixExpr(const Node *Child_, std::string_view Operator_, Prec Prec_)
+ : Node(KPostfixExpr, Prec_), Child(Child_), Operator(Operator_) {}
- template<typename Fn> void match(Fn F) const { F(Child, Operator); }
+ template <typename Fn> void match(Fn F) const {
+ F(Child, Operator, getPrecedence());
+ }
- void printLeft(OutputStream &S) const override {
- S += "(";
- Child->print(S);
- S += ")";
- S += Operator;
+ void printLeft(OutputBuffer &OB) const override {
+ Child->printAsOperand(OB, getPrecedence(), true);
+ OB += Operator;
}
};
@@ -1663,78 +1778,128 @@ class ConditionalExpr : public Node {
const Node *Else;
public:
- ConditionalExpr(const Node *Cond_, const Node *Then_, const Node *Else_)
- : Node(KConditionalExpr), Cond(Cond_), Then(Then_), Else(Else_) {}
+ ConditionalExpr(const Node *Cond_, const Node *Then_, const Node *Else_,
+ Prec Prec_)
+ : Node(KConditionalExpr, Prec_), Cond(Cond_), Then(Then_), Else(Else_) {}
- template<typename Fn> void match(Fn F) const { F(Cond, Then, Else); }
+ template <typename Fn> void match(Fn F) const {
+ F(Cond, Then, Else, getPrecedence());
+ }
- void printLeft(OutputStream &S) const override {
- S += "(";
- Cond->print(S);
- S += ") ? (";
- Then->print(S);
- S += ") : (";
- Else->print(S);
- S += ")";
+ void printLeft(OutputBuffer &OB) const override {
+ Cond->printAsOperand(OB, getPrecedence());
+ OB += " ? ";
+ Then->printAsOperand(OB);
+ OB += " : ";
+ Else->printAsOperand(OB, Prec::Assign, true);
}
};
class MemberExpr : public Node {
const Node *LHS;
- const StringView Kind;
+ const std::string_view Kind;
const Node *RHS;
public:
- MemberExpr(const Node *LHS_, StringView Kind_, const Node *RHS_)
- : Node(KMemberExpr), LHS(LHS_), Kind(Kind_), RHS(RHS_) {}
+ MemberExpr(const Node *LHS_, std::string_view Kind_, const Node *RHS_,
+ Prec Prec_)
+ : Node(KMemberExpr, Prec_), LHS(LHS_), Kind(Kind_), RHS(RHS_) {}
- template<typename Fn> void match(Fn F) const { F(LHS, Kind, RHS); }
+ template <typename Fn> void match(Fn F) const {
+ F(LHS, Kind, RHS, getPrecedence());
+ }
- void printLeft(OutputStream &S) const override {
- LHS->print(S);
- S += Kind;
- RHS->print(S);
+ void printLeft(OutputBuffer &OB) const override {
+ LHS->printAsOperand(OB, getPrecedence(), true);
+ OB += Kind;
+ RHS->printAsOperand(OB, getPrecedence(), false);
+ }
+};
+
+class SubobjectExpr : public Node {
+ const Node *Type;
+ const Node *SubExpr;
+ std::string_view Offset;
+ NodeArray UnionSelectors;
+ bool OnePastTheEnd;
+
+public:
+ SubobjectExpr(const Node *Type_, const Node *SubExpr_,
+ std::string_view Offset_, NodeArray UnionSelectors_,
+ bool OnePastTheEnd_)
+ : Node(KSubobjectExpr), Type(Type_), SubExpr(SubExpr_), Offset(Offset_),
+ UnionSelectors(UnionSelectors_), OnePastTheEnd(OnePastTheEnd_) {}
+
+ template<typename Fn> void match(Fn F) const {
+ F(Type, SubExpr, Offset, UnionSelectors, OnePastTheEnd);
+ }
+
+ void printLeft(OutputBuffer &OB) const override {
+ SubExpr->print(OB);
+ OB += ".<";
+ Type->print(OB);
+ OB += " at offset ";
+ if (Offset.empty()) {
+ OB += "0";
+ } else if (Offset[0] == 'n') {
+ OB += "-";
+ OB += std::string_view(Offset.data() + 1, Offset.size() - 1);
+ } else {
+ OB += Offset;
+ }
+ OB += ">";
}
};
class EnclosingExpr : public Node {
- const StringView Prefix;
+ const std::string_view Prefix;
const Node *Infix;
- const StringView Postfix;
+ const std::string_view Postfix;
public:
- EnclosingExpr(StringView Prefix_, Node *Infix_, StringView Postfix_)
- : Node(KEnclosingExpr), Prefix(Prefix_), Infix(Infix_),
- Postfix(Postfix_) {}
+ EnclosingExpr(std::string_view Prefix_, const Node *Infix_,
+ Prec Prec_ = Prec::Primary)
+ : Node(KEnclosingExpr, Prec_), Prefix(Prefix_), Infix(Infix_) {}
- template<typename Fn> void match(Fn F) const { F(Prefix, Infix, Postfix); }
+ template <typename Fn> void match(Fn F) const {
+ F(Prefix, Infix, getPrecedence());
+ }
- void printLeft(OutputStream &S) const override {
- S += Prefix;
- Infix->print(S);
- S += Postfix;
+ void printLeft(OutputBuffer &OB) const override {
+ OB += Prefix;
+ OB.printOpen();
+ Infix->print(OB);
+ OB.printClose();
+ OB += Postfix;
}
};
class CastExpr : public Node {
// cast_kind<to>(from)
- const StringView CastKind;
+ const std::string_view CastKind;
const Node *To;
const Node *From;
public:
- CastExpr(StringView CastKind_, const Node *To_, const Node *From_)
- : Node(KCastExpr), CastKind(CastKind_), To(To_), From(From_) {}
+ CastExpr(std::string_view CastKind_, const Node *To_, const Node *From_,
+ Prec Prec_)
+ : Node(KCastExpr, Prec_), CastKind(CastKind_), To(To_), From(From_) {}
- template<typename Fn> void match(Fn F) const { F(CastKind, To, From); }
+ template <typename Fn> void match(Fn F) const {
+ F(CastKind, To, From, getPrecedence());
+ }
- void printLeft(OutputStream &S) const override {
- S += CastKind;
- S += "<";
- To->printLeft(S);
- S += ">(";
- From->printLeft(S);
- S += ")";
+ void printLeft(OutputBuffer &OB) const override {
+ OB += CastKind;
+ {
+ ScopedOverride<unsigned> LT(OB.GtIsGt, 0);
+ OB += "<";
+ To->printLeft(OB);
+ OB += ">";
+ }
+ OB.printOpen();
+ From->printAsOperand(OB);
+ OB.printClose();
}
};
@@ -1747,11 +1912,12 @@ public:
template<typename Fn> void match(Fn F) const { F(Pack); }
- void printLeft(OutputStream &S) const override {
- S += "sizeof...(";
+ void printLeft(OutputBuffer &OB) const override {
+ OB += "sizeof...";
+ OB.printOpen();
ParameterPackExpansion PPE(Pack);
- PPE.printLeft(S);
- S += ")";
+ PPE.printLeft(OB);
+ OB.printClose();
}
};
@@ -1760,16 +1926,18 @@ class CallExpr : public Node {
NodeArray Args;
public:
- CallExpr(const Node *Callee_, NodeArray Args_)
- : Node(KCallExpr), Callee(Callee_), Args(Args_) {}
+ CallExpr(const Node *Callee_, NodeArray Args_, Prec Prec_)
+ : Node(KCallExpr, Prec_), Callee(Callee_), Args(Args_) {}
- template<typename Fn> void match(Fn F) const { F(Callee, Args); }
+ template <typename Fn> void match(Fn F) const {
+ F(Callee, Args, getPrecedence());
+ }
- void printLeft(OutputStream &S) const override {
- Callee->print(S);
- S += "(";
- Args.printWithComma(S);
- S += ")";
+ void printLeft(OutputBuffer &OB) const override {
+ Callee->print(OB);
+ OB.printOpen();
+ Args.printWithComma(OB);
+ OB.printClose();
}
};
@@ -1782,33 +1950,32 @@ class NewExpr : public Node {
bool IsArray; // new[] ?
public:
NewExpr(NodeArray ExprList_, Node *Type_, NodeArray InitList_, bool IsGlobal_,
- bool IsArray_)
- : Node(KNewExpr), ExprList(ExprList_), Type(Type_), InitList(InitList_),
- IsGlobal(IsGlobal_), IsArray(IsArray_) {}
+ bool IsArray_, Prec Prec_)
+ : Node(KNewExpr, Prec_), ExprList(ExprList_), Type(Type_),
+ InitList(InitList_), IsGlobal(IsGlobal_), IsArray(IsArray_) {}
template<typename Fn> void match(Fn F) const {
- F(ExprList, Type, InitList, IsGlobal, IsArray);
+ F(ExprList, Type, InitList, IsGlobal, IsArray, getPrecedence());
}
- void printLeft(OutputStream &S) const override {
+ void printLeft(OutputBuffer &OB) const override {
if (IsGlobal)
- S += "::operator ";
- S += "new";
+ OB += "::";
+ OB += "new";
if (IsArray)
- S += "[]";
- S += ' ';
+ OB += "[]";
if (!ExprList.empty()) {
- S += "(";
- ExprList.printWithComma(S);
- S += ")";
+ OB.printOpen();
+ ExprList.printWithComma(OB);
+ OB.printClose();
}
- Type->print(S);
+ OB += " ";
+ Type->print(OB);
if (!InitList.empty()) {
- S += "(";
- InitList.printWithComma(S);
- S += ")";
+ OB.printOpen();
+ InitList.printWithComma(OB);
+ OB.printClose();
}
-
}
};
@@ -1818,50 +1985,55 @@ class DeleteExpr : public Node {
bool IsArray;
public:
- DeleteExpr(Node *Op_, bool IsGlobal_, bool IsArray_)
- : Node(KDeleteExpr), Op(Op_), IsGlobal(IsGlobal_), IsArray(IsArray_) {}
+ DeleteExpr(Node *Op_, bool IsGlobal_, bool IsArray_, Prec Prec_)
+ : Node(KDeleteExpr, Prec_), Op(Op_), IsGlobal(IsGlobal_),
+ IsArray(IsArray_) {}
- template<typename Fn> void match(Fn F) const { F(Op, IsGlobal, IsArray); }
+ template <typename Fn> void match(Fn F) const {
+ F(Op, IsGlobal, IsArray, getPrecedence());
+ }
- void printLeft(OutputStream &S) const override {
+ void printLeft(OutputBuffer &OB) const override {
if (IsGlobal)
- S += "::";
- S += "delete";
+ OB += "::";
+ OB += "delete";
if (IsArray)
- S += "[] ";
- Op->print(S);
+ OB += "[]";
+ OB += ' ';
+ Op->print(OB);
}
};
class PrefixExpr : public Node {
- StringView Prefix;
+ std::string_view Prefix;
Node *Child;
public:
- PrefixExpr(StringView Prefix_, Node *Child_)
- : Node(KPrefixExpr), Prefix(Prefix_), Child(Child_) {}
+ PrefixExpr(std::string_view Prefix_, Node *Child_, Prec Prec_)
+ : Node(KPrefixExpr, Prec_), Prefix(Prefix_), Child(Child_) {}
- template<typename Fn> void match(Fn F) const { F(Prefix, Child); }
+ template <typename Fn> void match(Fn F) const {
+ F(Prefix, Child, getPrecedence());
+ }
- void printLeft(OutputStream &S) const override {
- S += Prefix;
- S += "(";
- Child->print(S);
- S += ")";
+ void printLeft(OutputBuffer &OB) const override {
+ OB += Prefix;
+ Child->printAsOperand(OB, getPrecedence());
}
};
class FunctionParam : public Node {
- StringView Number;
+ std::string_view Number;
public:
- FunctionParam(StringView Number_) : Node(KFunctionParam), Number(Number_) {}
+ FunctionParam(std::string_view Number_)
+ : Node(KFunctionParam), Number(Number_) {}
template<typename Fn> void match(Fn F) const { F(Number); }
- void printLeft(OutputStream &S) const override {
- S += "fp";
- S += Number;
+ void printLeft(OutputBuffer &OB) const override {
+ OB += "fp";
+ OB += Number;
}
};
@@ -1870,17 +2042,45 @@ class ConversionExpr : public Node {
NodeArray Expressions;
public:
- ConversionExpr(const Node *Type_, NodeArray Expressions_)
- : Node(KConversionExpr), Type(Type_), Expressions(Expressions_) {}
+ ConversionExpr(const Node *Type_, NodeArray Expressions_, Prec Prec_)
+ : Node(KConversionExpr, Prec_), Type(Type_), Expressions(Expressions_) {}
- template<typename Fn> void match(Fn F) const { F(Type, Expressions); }
+ template <typename Fn> void match(Fn F) const {
+ F(Type, Expressions, getPrecedence());
+ }
- void printLeft(OutputStream &S) const override {
- S += "(";
- Type->print(S);
- S += ")(";
- Expressions.printWithComma(S);
- S += ")";
+ void printLeft(OutputBuffer &OB) const override {
+ OB.printOpen();
+ Type->print(OB);
+ OB.printClose();
+ OB.printOpen();
+ Expressions.printWithComma(OB);
+ OB.printClose();
+ }
+};
+
+class PointerToMemberConversionExpr : public Node {
+ const Node *Type;
+ const Node *SubExpr;
+ std::string_view Offset;
+
+public:
+ PointerToMemberConversionExpr(const Node *Type_, const Node *SubExpr_,
+ std::string_view Offset_, Prec Prec_)
+ : Node(KPointerToMemberConversionExpr, Prec_), Type(Type_),
+ SubExpr(SubExpr_), Offset(Offset_) {}
+
+ template <typename Fn> void match(Fn F) const {
+ F(Type, SubExpr, Offset, getPrecedence());
+ }
+
+ void printLeft(OutputBuffer &OB) const override {
+ OB.printOpen();
+ Type->print(OB);
+ OB.printClose();
+ OB.printOpen();
+ SubExpr->print(OB);
+ OB.printClose();
}
};
@@ -1893,12 +2093,12 @@ public:
template<typename Fn> void match(Fn F) const { F(Ty, Inits); }
- void printLeft(OutputStream &S) const override {
+ void printLeft(OutputBuffer &OB) const override {
if (Ty)
- Ty->print(S);
- S += '{';
- Inits.printWithComma(S);
- S += '}';
+ Ty->print(OB);
+ OB += '{';
+ Inits.printWithComma(OB);
+ OB += '}';
}
};
@@ -1912,18 +2112,18 @@ public:
template<typename Fn> void match(Fn F) const { F(Elem, Init, IsArray); }
- void printLeft(OutputStream &S) const override {
+ void printLeft(OutputBuffer &OB) const override {
if (IsArray) {
- S += '[';
- Elem->print(S);
- S += ']';
+ OB += '[';
+ Elem->print(OB);
+ OB += ']';
} else {
- S += '.';
- Elem->print(S);
+ OB += '.';
+ Elem->print(OB);
}
if (Init->getKind() != KBracedExpr && Init->getKind() != KBracedRangeExpr)
- S += " = ";
- Init->print(S);
+ OB += " = ";
+ Init->print(OB);
}
};
@@ -1937,25 +2137,25 @@ public:
template<typename Fn> void match(Fn F) const { F(First, Last, Init); }
- void printLeft(OutputStream &S) const override {
- S += '[';
- First->print(S);
- S += " ... ";
- Last->print(S);
- S += ']';
+ void printLeft(OutputBuffer &OB) const override {
+ OB += '[';
+ First->print(OB);
+ OB += " ... ";
+ Last->print(OB);
+ OB += ']';
if (Init->getKind() != KBracedExpr && Init->getKind() != KBracedRangeExpr)
- S += " = ";
- Init->print(S);
+ OB += " = ";
+ Init->print(OB);
}
};
class FoldExpr : public Node {
const Node *Pack, *Init;
- StringView OperatorName;
+ std::string_view OperatorName;
bool IsLeftFold;
public:
- FoldExpr(bool IsLeftFold_, StringView OperatorName_, const Node *Pack_,
+ FoldExpr(bool IsLeftFold_, std::string_view OperatorName_, const Node *Pack_,
const Node *Init_)
: Node(KFoldExpr), Pack(Pack_), Init(Init_), OperatorName(OperatorName_),
IsLeftFold(IsLeftFold_) {}
@@ -1964,43 +2164,35 @@ public:
F(IsLeftFold, OperatorName, Pack, Init);
}
- void printLeft(OutputStream &S) const override {
+ void printLeft(OutputBuffer &OB) const override {
auto PrintPack = [&] {
- S += '(';
- ParameterPackExpansion(Pack).print(S);
- S += ')';
+ OB.printOpen();
+ ParameterPackExpansion(Pack).print(OB);
+ OB.printClose();
};
- S += '(';
-
- if (IsLeftFold) {
- // init op ... op pack
- if (Init != nullptr) {
- Init->print(S);
- S += ' ';
- S += OperatorName;
- S += ' ';
- }
- // ... op pack
- S += "... ";
- S += OperatorName;
- S += ' ';
- PrintPack();
- } else { // !IsLeftFold
- // pack op ...
- PrintPack();
- S += ' ';
- S += OperatorName;
- S += " ...";
- // pack op ... op init
- if (Init != nullptr) {
- S += ' ';
- S += OperatorName;
- S += ' ';
- Init->print(S);
- }
+ OB.printOpen();
+ // Either '[init op ]... op pack' or 'pack op ...[ op init]'
+ // Refactored to '[(init|pack) op ]...[ op (pack|init)]'
+ // Fold expr operands are cast-expressions
+ if (!IsLeftFold || Init != nullptr) {
+ // '(init|pack) op '
+ if (IsLeftFold)
+ Init->printAsOperand(OB, Prec::Cast, true);
+ else
+ PrintPack();
+ OB << " " << OperatorName << " ";
}
- S += ')';
+ OB << "...";
+ if (IsLeftFold || Init != nullptr) {
+ // ' op (init|pack)'
+ OB << " " << OperatorName << " ";
+ if (IsLeftFold)
+ PrintPack();
+ else
+ Init->printAsOperand(OB, Prec::Cast, true);
+ }
+ OB.printClose();
}
};
@@ -2012,24 +2204,9 @@ public:
template<typename Fn> void match(Fn F) const { F(Op); }
- void printLeft(OutputStream &S) const override {
- S += "throw ";
- Op->print(S);
- }
-};
-
-// MSVC __uuidof extension, generated by clang in -fms-extensions mode.
-class UUIDOfExpr : public Node {
- Node *Operand;
-public:
- UUIDOfExpr(Node *Operand_) : Node(KUUIDOfExpr), Operand(Operand_) {}
-
- template<typename Fn> void match(Fn F) const { F(Operand); }
-
- void printLeft(OutputStream &S) const override {
- S << "__uuidof(";
- Operand->print(S);
- S << ")";
+ void printLeft(OutputBuffer &OB) const override {
+ OB += "throw ";
+ Op->print(OB);
}
};
@@ -2041,8 +2218,8 @@ public:
template<typename Fn> void match(Fn F) const { F(Value); }
- void printLeft(OutputStream &S) const override {
- S += Value ? StringView("true") : StringView("false");
+ void printLeft(OutputBuffer &OB) const override {
+ OB += Value ? std::string_view("true") : std::string_view("false");
}
};
@@ -2054,10 +2231,10 @@ public:
template<typename Fn> void match(Fn F) const { F(Type); }
- void printLeft(OutputStream &S) const override {
- S += "\"<";
- Type->print(S);
- S += ">\"";
+ void printLeft(OutputBuffer &OB) const override {
+ OB += "\"<";
+ Type->print(OB);
+ OB += ">\"";
}
};
@@ -2069,58 +2246,61 @@ public:
template<typename Fn> void match(Fn F) const { F(Type); }
- void printLeft(OutputStream &S) const override {
- S += "[]";
+ void printLeft(OutputBuffer &OB) const override {
+ OB += "[]";
if (Type->getKind() == KClosureTypeName)
- static_cast<const ClosureTypeName *>(Type)->printDeclarator(S);
- S += "{...}";
+ static_cast<const ClosureTypeName *>(Type)->printDeclarator(OB);
+ OB += "{...}";
}
};
-class IntegerCastExpr : public Node {
+class EnumLiteral : public Node {
// ty(integer)
const Node *Ty;
- StringView Integer;
+ std::string_view Integer;
public:
- IntegerCastExpr(const Node *Ty_, StringView Integer_)
- : Node(KIntegerCastExpr), Ty(Ty_), Integer(Integer_) {}
+ EnumLiteral(const Node *Ty_, std::string_view Integer_)
+ : Node(KEnumLiteral), Ty(Ty_), Integer(Integer_) {}
template<typename Fn> void match(Fn F) const { F(Ty, Integer); }
- void printLeft(OutputStream &S) const override {
- S += "(";
- Ty->print(S);
- S += ")";
- S += Integer;
+ void printLeft(OutputBuffer &OB) const override {
+ OB.printOpen();
+ Ty->print(OB);
+ OB.printClose();
+
+ if (Integer[0] == 'n')
+ OB << '-' << std::string_view(Integer.data() + 1, Integer.size() - 1);
+ else
+ OB << Integer;
}
};
class IntegerLiteral : public Node {
- StringView Type;
- StringView Value;
+ std::string_view Type;
+ std::string_view Value;
public:
- IntegerLiteral(StringView Type_, StringView Value_)
+ IntegerLiteral(std::string_view Type_, std::string_view Value_)
: Node(KIntegerLiteral), Type(Type_), Value(Value_) {}
template<typename Fn> void match(Fn F) const { F(Type, Value); }
- void printLeft(OutputStream &S) const override {
+ void printLeft(OutputBuffer &OB) const override {
if (Type.size() > 3) {
- S += "(";
- S += Type;
- S += ")";
+ OB.printOpen();
+ OB += Type;
+ OB.printClose();
}
- if (Value[0] == 'n') {
- S += "-";
- S += Value.dropFront(1);
- } else
- S += Value;
+ if (Value[0] == 'n')
+ OB << '-' << std::string_view(Value.data() + 1, Value.size() - 1);
+ else
+ OB += Value;
if (Type.size() <= 3)
- S += Type;
+ OB += Type;
}
};
@@ -2139,29 +2319,26 @@ constexpr Node::Kind getFloatLiteralKind(long double *) {
}
template <class Float> class FloatLiteralImpl : public Node {
- const StringView Contents;
+ const std::string_view Contents;
static constexpr Kind KindForClass =
float_literal_impl::getFloatLiteralKind((Float *)nullptr);
public:
- FloatLiteralImpl(StringView Contents_)
+ FloatLiteralImpl(std::string_view Contents_)
: Node(KindForClass), Contents(Contents_) {}
template<typename Fn> void match(Fn F) const { F(Contents); }
- void printLeft(OutputStream &s) const override {
- const char *first = Contents.begin();
- const char *last = Contents.end() + 1;
-
+ void printLeft(OutputBuffer &OB) const override {
const size_t N = FloatData<Float>::mangled_size;
- if (static_cast<std::size_t>(last - first) > N) {
- last = first + N;
+ if (Contents.size() >= N) {
union {
Float value;
char buf[sizeof(Float)];
};
- const char *t = first;
+ const char *t = Contents.data();
+ const char *last = t + N;
char *e = buf;
for (; t != last; ++t, ++e) {
unsigned d1 = isdigit(*t) ? static_cast<unsigned>(*t - '0')
@@ -2176,7 +2353,7 @@ public:
#endif
char num[FloatData<Float>::max_demangled_size] = {0};
int n = snprintf(num, sizeof(num), FloatData<Float>::spec, value);
- s += StringView(num, num + n);
+ OB += std::string_view(num, n);
}
}
};
@@ -2190,143 +2367,22 @@ using LongDoubleLiteral = FloatLiteralImpl<long double>;
template<typename Fn>
void Node::visit(Fn F) const {
switch (K) {
-#define CASE(X) case K ## X: return F(static_cast<const X*>(this));
- FOR_EACH_NODE_KIND(CASE)
-#undef CASE
+#define NODE(X) \
+ case K##X: \
+ return F(static_cast<const X *>(this));
+#include "ItaniumNodes.def"
}
assert(0 && "unknown mangling node kind");
}
/// Determine the kind of a node from its type.
template<typename NodeT> struct NodeKind;
-#define SPECIALIZATION(X) \
- template<> struct NodeKind<X> { \
- static constexpr Node::Kind Kind = Node::K##X; \
- static constexpr const char *name() { return #X; } \
+#define NODE(X) \
+ template <> struct NodeKind<X> { \
+ static constexpr Node::Kind Kind = Node::K##X; \
+ static constexpr const char *name() { return #X; } \
};
-FOR_EACH_NODE_KIND(SPECIALIZATION)
-#undef SPECIALIZATION
-
-#undef FOR_EACH_NODE_KIND
-
-template <class T, size_t N>
-class PODSmallVector {
- static_assert(std::is_pod<T>::value,
- "T is required to be a plain old data type");
-
- T* First;
- T* Last;
- T* Cap;
- T Inline[N];
-
- bool isInline() const { return First == Inline; }
-
- void clearInline() {
- First = Inline;
- Last = Inline;
- Cap = Inline + N;
- }
-
- void reserve(size_t NewCap) {
- size_t S = size();
- if (isInline()) {
- auto* Tmp = static_cast<T*>(std::malloc(NewCap * sizeof(T)));
- if (Tmp == nullptr)
- std::terminate();
- std::copy(First, Last, Tmp);
- First = Tmp;
- } else {
- First = static_cast<T*>(std::realloc(First, NewCap * sizeof(T)));
- if (First == nullptr)
- std::terminate();
- }
- Last = First + S;
- Cap = First + NewCap;
- }
-
-public:
- PODSmallVector() : First(Inline), Last(First), Cap(Inline + N) {}
-
- PODSmallVector(const PODSmallVector&) = delete;
- PODSmallVector& operator=(const PODSmallVector&) = delete;
-
- PODSmallVector(PODSmallVector&& Other) : PODSmallVector() {
- if (Other.isInline()) {
- std::copy(Other.begin(), Other.end(), First);
- Last = First + Other.size();
- Other.clear();
- return;
- }
-
- First = Other.First;
- Last = Other.Last;
- Cap = Other.Cap;
- Other.clearInline();
- }
-
- PODSmallVector& operator=(PODSmallVector&& Other) {
- if (Other.isInline()) {
- if (!isInline()) {
- std::free(First);
- clearInline();
- }
- std::copy(Other.begin(), Other.end(), First);
- Last = First + Other.size();
- Other.clear();
- return *this;
- }
-
- if (isInline()) {
- First = Other.First;
- Last = Other.Last;
- Cap = Other.Cap;
- Other.clearInline();
- return *this;
- }
-
- std::swap(First, Other.First);
- std::swap(Last, Other.Last);
- std::swap(Cap, Other.Cap);
- Other.clear();
- return *this;
- }
-
- void push_back(const T& Elem) {
- if (Last == Cap)
- reserve(size() * 2);
- *Last++ = Elem;
- }
-
- void pop_back() {
- assert(Last != First && "Popping empty vector!");
- --Last;
- }
-
- void dropBack(size_t Index) {
- assert(Index <= size() && "dropBack() can't expand!");
- Last = First + Index;
- }
-
- T* begin() { return First; }
- T* end() { return Last; }
-
- bool empty() const { return First == Last; }
- size_t size() const { return static_cast<size_t>(Last - First); }
- T& back() {
- assert(Last != First && "Calling back() on empty vector!");
- return *(Last - 1);
- }
- T& operator[](size_t Index) {
- assert(Index < size() && "Invalid access!");
- return *(begin() + Index);
- }
- void clear() { Last = First; }
-
- ~PODSmallVector() {
- if (!isInline())
- std::free(First);
- }
-};
+#include "ItaniumNodes.def"
template <typename Derived, typename Alloc> struct AbstractManglingParser {
const char *First;
@@ -2350,9 +2406,9 @@ template <typename Derived, typename Alloc> struct AbstractManglingParser {
TemplateParamList Params;
public:
- ScopedTemplateParamList(AbstractManglingParser *Parser)
- : Parser(Parser),
- OldNumTemplateParamLists(Parser->TemplateParams.size()) {
+ ScopedTemplateParamList(AbstractManglingParser *TheParser)
+ : Parser(TheParser),
+ OldNumTemplateParamLists(TheParser->TemplateParams.size()) {
Parser->TemplateParams.push_back(&Params);
}
~ScopedTemplateParamList() {
@@ -2424,8 +2480,9 @@ template <typename Derived, typename Alloc> struct AbstractManglingParser {
return res;
}
- bool consumeIf(StringView S) {
- if (StringView(First, Last).startsWith(S)) {
+ bool consumeIf(std::string_view S) {
+ if (llvm::itanium_demangle::starts_with(
+ std::string_view(First, Last - First), S)) {
First += S.size();
return true;
}
@@ -2442,7 +2499,7 @@ template <typename Derived, typename Alloc> struct AbstractManglingParser {
char consume() { return First != Last ? *First++ : '\0'; }
- char look(unsigned Lookahead = 0) {
+ char look(unsigned Lookahead = 0) const {
if (static_cast<size_t>(Last - First) <= Lookahead)
return '\0';
return First[Lookahead];
@@ -2450,10 +2507,10 @@ template <typename Derived, typename Alloc> struct AbstractManglingParser {
size_t numLeft() const { return static_cast<size_t>(Last - First); }
- StringView parseNumber(bool AllowNegative = false);
+ std::string_view parseNumber(bool AllowNegative = false);
Qualifiers parseCVQualifiers();
bool parsePositiveInteger(size_t *Out);
- StringView parseBareSourceName();
+ std::string_view parseBareSourceName();
bool parseSeqId(size_t *Out);
Node *parseSubstitution();
@@ -2464,16 +2521,17 @@ template <typename Derived, typename Alloc> struct AbstractManglingParser {
/// Parse the <expr> production.
Node *parseExpr();
- Node *parsePrefixExpr(StringView Kind);
- Node *parseBinaryExpr(StringView Kind);
- Node *parseIntegerLiteral(StringView Lit);
+ Node *parsePrefixExpr(std::string_view Kind, Node::Prec Prec);
+ Node *parseBinaryExpr(std::string_view Kind, Node::Prec Prec);
+ Node *parseIntegerLiteral(std::string_view Lit);
Node *parseExprPrimary();
template <class Float> Node *parseFloatingLiteral();
Node *parseFunctionParam();
- Node *parseNewExpr();
Node *parseConversionExpr();
Node *parseBracedExpr();
Node *parseFoldExpr();
+ Node *parsePointerToMemberConversionExpr(Node::Prec Prec);
+ Node *parseSubobjectExpr();
/// Parse the <type> production.
Node *parseType();
@@ -2520,17 +2578,81 @@ template <typename Derived, typename Alloc> struct AbstractManglingParser {
Node *parseName(NameState *State = nullptr);
Node *parseLocalName(NameState *State);
Node *parseOperatorName(NameState *State);
- Node *parseUnqualifiedName(NameState *State);
+ bool parseModuleNameOpt(ModuleName *&Module);
+ Node *parseUnqualifiedName(NameState *State, Node *Scope, ModuleName *Module);
Node *parseUnnamedTypeName(NameState *State);
Node *parseSourceName(NameState *State);
- Node *parseUnscopedName(NameState *State);
+ Node *parseUnscopedName(NameState *State, bool *isSubstName);
Node *parseNestedName(NameState *State);
Node *parseCtorDtorName(Node *&SoFar, NameState *State);
Node *parseAbiTags(Node *N);
+ struct OperatorInfo {
+ enum OIKind : unsigned char {
+ Prefix, // Prefix unary: @ expr
+ Postfix, // Postfix unary: expr @
+ Binary, // Binary: lhs @ rhs
+ Array, // Array index: lhs [ rhs ]
+ Member, // Member access: lhs @ rhs
+ New, // New
+ Del, // Delete
+ Call, // Function call: expr (expr*)
+ CCast, // C cast: (type)expr
+ Conditional, // Conditional: expr ? expr : expr
+ NameOnly, // Overload only, not allowed in expression.
+ // Below do not have operator names
+ NamedCast, // Named cast, @<type>(expr)
+ OfIdOp, // alignof, sizeof, typeid
+
+ Unnameable = NamedCast,
+ };
+ char Enc[2]; // Encoding
+ OIKind Kind; // Kind of operator
+ bool Flag : 1; // Entry-specific flag
+ Node::Prec Prec : 7; // Precedence
+ const char *Name; // Spelling
+
+ public:
+ constexpr OperatorInfo(const char (&E)[3], OIKind K, bool F, Node::Prec P,
+ const char *N)
+ : Enc{E[0], E[1]}, Kind{K}, Flag{F}, Prec{P}, Name{N} {}
+
+ public:
+ bool operator<(const OperatorInfo &Other) const {
+ return *this < Other.Enc;
+ }
+ bool operator<(const char *Peek) const {
+ return Enc[0] < Peek[0] || (Enc[0] == Peek[0] && Enc[1] < Peek[1]);
+ }
+ bool operator==(const char *Peek) const {
+ return Enc[0] == Peek[0] && Enc[1] == Peek[1];
+ }
+ bool operator!=(const char *Peek) const { return !this->operator==(Peek); }
+
+ public:
+ std::string_view getSymbol() const {
+ std::string_view Res = Name;
+ if (Kind < Unnameable) {
+ assert(llvm::itanium_demangle::starts_with(Res, "operator") &&
+ "operator name does not start with 'operator'");
+ Res.remove_prefix(sizeof("operator") - 1);
+ if (llvm::itanium_demangle::starts_with(Res, ' '))
+ Res.remove_prefix(1);
+ }
+ return Res;
+ }
+ std::string_view getName() const { return Name; }
+ OIKind getKind() const { return Kind; }
+ bool getFlag() const { return Flag; }
+ Node::Prec getPrecedence() const { return Prec; }
+ };
+ static const OperatorInfo Ops[];
+ static const size_t NumOps;
+ const OperatorInfo *parseOperatorEncoding();
+
/// Parse the <unresolved-name> production.
- Node *parseUnresolvedName();
+ Node *parseUnresolvedName(bool Global);
Node *parseSimpleId();
Node *parseBaseUnresolvedName();
Node *parseUnresolvedType();
@@ -2551,41 +2673,35 @@ const char* parse_discriminator(const char* first, const char* last);
// ::= <substitution>
template <typename Derived, typename Alloc>
Node *AbstractManglingParser<Derived, Alloc>::parseName(NameState *State) {
- consumeIf('L'); // extension
-
if (look() == 'N')
return getDerived().parseNestedName(State);
if (look() == 'Z')
return getDerived().parseLocalName(State);
- // ::= <unscoped-template-name> <template-args>
- if (look() == 'S' && look(1) != 't') {
- Node *S = getDerived().parseSubstitution();
- if (S == nullptr)
- return nullptr;
- if (look() != 'I')
- return nullptr;
+ Node *Result = nullptr;
+ bool IsSubst = false;
+
+ Result = getDerived().parseUnscopedName(State, &IsSubst);
+ if (!Result)
+ return nullptr;
+
+ if (look() == 'I') {
+ // ::= <unscoped-template-name> <template-args>
+ if (!IsSubst)
+ // An unscoped-template-name is substitutable.
+ Subs.push_back(Result);
Node *TA = getDerived().parseTemplateArgs(State != nullptr);
if (TA == nullptr)
return nullptr;
- if (State) State->EndsWithTemplateArgs = true;
- return make<NameWithTemplateArgs>(S, TA);
+ if (State)
+ State->EndsWithTemplateArgs = true;
+ Result = make<NameWithTemplateArgs>(Result, TA);
+ } else if (IsSubst) {
+ // The substitution case must be followed by <template-args>.
+ return nullptr;
}
- Node *N = getDerived().parseUnscopedName(State);
- if (N == nullptr)
- return nullptr;
- // ::= <unscoped-template-name> <template-args>
- if (look() == 'I') {
- Subs.push_back(N);
- Node *TA = getDerived().parseTemplateArgs(State != nullptr);
- if (TA == nullptr)
- return nullptr;
- if (State) State->EndsWithTemplateArgs = true;
- return make<NameWithTemplateArgs>(N, TA);
- }
- // ::= <unscoped-name>
- return N;
+ return Result;
}
// <local-name> := Z <function encoding> E <entity name> [<discriminator>]
@@ -2626,34 +2742,63 @@ Node *AbstractManglingParser<Derived, Alloc>::parseLocalName(NameState *State) {
// <unscoped-name> ::= <unqualified-name>
// ::= St <unqualified-name> # ::std::
-// extension ::= StL<unqualified-name>
+// [*] extension
template <typename Derived, typename Alloc>
Node *
-AbstractManglingParser<Derived, Alloc>::parseUnscopedName(NameState *State) {
- if (consumeIf("StL") || consumeIf("St")) {
- Node *R = getDerived().parseUnqualifiedName(State);
- if (R == nullptr)
+AbstractManglingParser<Derived, Alloc>::parseUnscopedName(NameState *State,
+ bool *IsSubst) {
+
+ Node *Std = nullptr;
+ if (consumeIf("St")) {
+ Std = make<NameType>("std");
+ if (Std == nullptr)
return nullptr;
- return make<StdQualifiedName>(R);
}
- return getDerived().parseUnqualifiedName(State);
+
+ Node *Res = nullptr;
+ ModuleName *Module = nullptr;
+ if (look() == 'S') {
+ Node *S = getDerived().parseSubstitution();
+ if (!S)
+ return nullptr;
+ if (S->getKind() == Node::KModuleName)
+ Module = static_cast<ModuleName *>(S);
+ else if (IsSubst && Std == nullptr) {
+ Res = S;
+ *IsSubst = true;
+ } else {
+ return nullptr;
+ }
+ }
+
+ if (Res == nullptr || Std != nullptr) {
+ Res = getDerived().parseUnqualifiedName(State, Std, Module);
+ }
+
+ return Res;
}
-// <unqualified-name> ::= <operator-name> [abi-tags]
-// ::= <ctor-dtor-name>
-// ::= <source-name>
-// ::= <unnamed-type-name>
-// ::= DC <source-name>+ E # structured binding declaration
+// <unqualified-name> ::= [<module-name>] L? <operator-name> [<abi-tags>]
+// ::= [<module-name>] <ctor-dtor-name> [<abi-tags>]
+// ::= [<module-name>] L? <source-name> [<abi-tags>]
+// ::= [<module-name>] L? <unnamed-type-name> [<abi-tags>]
+// # structured binding declaration
+// ::= [<module-name>] L? DC <source-name>+ E
template <typename Derived, typename Alloc>
-Node *
-AbstractManglingParser<Derived, Alloc>::parseUnqualifiedName(NameState *State) {
- // <ctor-dtor-name>s are special-cased in parseNestedName().
+Node *AbstractManglingParser<Derived, Alloc>::parseUnqualifiedName(
+ NameState *State, Node *Scope, ModuleName *Module) {
+ if (getDerived().parseModuleNameOpt(Module))
+ return nullptr;
+
+ consumeIf('L');
+
Node *Result;
- if (look() == 'U')
- Result = getDerived().parseUnnamedTypeName(State);
- else if (look() >= '1' && look() <= '9')
+ if (look() >= '1' && look() <= '9') {
Result = getDerived().parseSourceName(State);
- else if (consumeIf("DC")) {
+ } else if (look() == 'U') {
+ Result = getDerived().parseUnnamedTypeName(State);
+ } else if (consumeIf("DC")) {
+ // Structured binding
size_t BindingsBegin = Names.size();
do {
Node *Binding = getDerived().parseSourceName(State);
@@ -2662,13 +2807,46 @@ AbstractManglingParser<Derived, Alloc>::parseUnqualifiedName(NameState *State) {
Names.push_back(Binding);
} while (!consumeIf('E'));
Result = make<StructuredBindingName>(popTrailingNodeArray(BindingsBegin));
- } else
+ } else if (look() == 'C' || look() == 'D') {
+ // A <ctor-dtor-name>.
+ if (Scope == nullptr || Module != nullptr)
+ return nullptr;
+ Result = getDerived().parseCtorDtorName(Scope, State);
+ } else {
Result = getDerived().parseOperatorName(State);
+ }
+
+ if (Result != nullptr && Module != nullptr)
+ Result = make<ModuleEntity>(Module, Result);
if (Result != nullptr)
Result = getDerived().parseAbiTags(Result);
+ if (Result != nullptr && Scope != nullptr)
+ Result = make<NestedName>(Scope, Result);
+
return Result;
}
+// <module-name> ::= <module-subname>
+// ::= <module-name> <module-subname>
+// ::= <substitution> # passed in by caller
+// <module-subname> ::= W <source-name>
+// ::= W P <source-name>
+template <typename Derived, typename Alloc>
+bool AbstractManglingParser<Derived, Alloc>::parseModuleNameOpt(
+ ModuleName *&Module) {
+ while (consumeIf('W')) {
+ bool IsPartition = consumeIf('P');
+ Node *Sub = getDerived().parseSourceName(nullptr);
+ if (!Sub)
+ return true;
+ Module =
+ static_cast<ModuleName *>(make<ModuleName>(Module, Sub, IsPartition));
+ Subs.push_back(Module);
+ }
+
+ return false;
+}
+
// <unnamed-type-name> ::= Ut [<nonnegative number>] _
// ::= <closure-type-name>
//
@@ -2684,19 +2862,19 @@ AbstractManglingParser<Derived, Alloc>::parseUnnamedTypeName(NameState *State) {
TemplateParams.clear();
if (consumeIf("Ut")) {
- StringView Count = parseNumber();
+ std::string_view Count = parseNumber();
if (!consumeIf('_'))
return nullptr;
return make<UnnamedTypeName>(Count);
}
if (consumeIf("Ul")) {
- SwapAndRestore<size_t> SwapParams(ParsingLambdaParamsAtLevel,
+ ScopedOverride<size_t> SwapParams(ParsingLambdaParamsAtLevel,
TemplateParams.size());
ScopedTemplateParamList LambdaTemplateParams(this);
size_t ParamsBegin = Names.size();
while (look() == 'T' &&
- StringView("yptn").find(look(1)) != StringView::npos) {
+ std::string_view("yptn").find(look(1)) != std::string_view::npos) {
Node *T = parseTemplateParamDecl();
if (!T)
return nullptr;
@@ -2739,7 +2917,7 @@ AbstractManglingParser<Derived, Alloc>::parseUnnamedTypeName(NameState *State) {
}
NodeArray Params = popTrailingNodeArray(ParamsBegin);
- StringView Count = parseNumber();
+ std::string_view Count = parseNumber();
if (!consumeIf('_'))
return nullptr;
return make<ClosureTypeName>(TempParams, Params, Count);
@@ -2761,104 +2939,138 @@ Node *AbstractManglingParser<Derived, Alloc>::parseSourceName(NameState *) {
return nullptr;
if (numLeft() < Length || Length == 0)
return nullptr;
- StringView Name(First, First + Length);
+ std::string_view Name(First, Length);
First += Length;
- if (Name.startsWith("_GLOBAL__N"))
+ if (llvm::itanium_demangle::starts_with(Name, "_GLOBAL__N"))
return make<NameType>("(anonymous namespace)");
return make<NameType>(Name);
}
-// <operator-name> ::= aa # &&
-// ::= ad # & (unary)
-// ::= an # &
-// ::= aN # &=
-// ::= aS # =
-// ::= cl # ()
-// ::= cm # ,
-// ::= co # ~
-// ::= cv <type> # (cast)
-// ::= da # delete[]
-// ::= de # * (unary)
-// ::= dl # delete
-// ::= dv # /
-// ::= dV # /=
-// ::= eo # ^
-// ::= eO # ^=
-// ::= eq # ==
-// ::= ge # >=
-// ::= gt # >
-// ::= ix # []
-// ::= le # <=
+// Operator encodings
+template <typename Derived, typename Alloc>
+const typename AbstractManglingParser<
+ Derived, Alloc>::OperatorInfo AbstractManglingParser<Derived,
+ Alloc>::Ops[] = {
+ // Keep ordered by encoding
+ {"aN", OperatorInfo::Binary, false, Node::Prec::Assign, "operator&="},
+ {"aS", OperatorInfo::Binary, false, Node::Prec::Assign, "operator="},
+ {"aa", OperatorInfo::Binary, false, Node::Prec::AndIf, "operator&&"},
+ {"ad", OperatorInfo::Prefix, false, Node::Prec::Unary, "operator&"},
+ {"an", OperatorInfo::Binary, false, Node::Prec::And, "operator&"},
+ {"at", OperatorInfo::OfIdOp, /*Type*/ true, Node::Prec::Unary, "alignof "},
+ {"aw", OperatorInfo::NameOnly, false, Node::Prec::Primary,
+ "operator co_await"},
+ {"az", OperatorInfo::OfIdOp, /*Type*/ false, Node::Prec::Unary, "alignof "},
+ {"cc", OperatorInfo::NamedCast, false, Node::Prec::Postfix, "const_cast"},
+ {"cl", OperatorInfo::Call, false, Node::Prec::Postfix, "operator()"},
+ {"cm", OperatorInfo::Binary, false, Node::Prec::Comma, "operator,"},
+ {"co", OperatorInfo::Prefix, false, Node::Prec::Unary, "operator~"},
+ {"cv", OperatorInfo::CCast, false, Node::Prec::Cast, "operator"}, // C Cast
+ {"dV", OperatorInfo::Binary, false, Node::Prec::Assign, "operator/="},
+ {"da", OperatorInfo::Del, /*Ary*/ true, Node::Prec::Unary,
+ "operator delete[]"},
+ {"dc", OperatorInfo::NamedCast, false, Node::Prec::Postfix, "dynamic_cast"},
+ {"de", OperatorInfo::Prefix, false, Node::Prec::Unary, "operator*"},
+ {"dl", OperatorInfo::Del, /*Ary*/ false, Node::Prec::Unary,
+ "operator delete"},
+ {"ds", OperatorInfo::Member, /*Named*/ false, Node::Prec::PtrMem,
+ "operator.*"},
+ {"dt", OperatorInfo::Member, /*Named*/ false, Node::Prec::Postfix,
+ "operator."},
+ {"dv", OperatorInfo::Binary, false, Node::Prec::Assign, "operator/"},
+ {"eO", OperatorInfo::Binary, false, Node::Prec::Assign, "operator^="},
+ {"eo", OperatorInfo::Binary, false, Node::Prec::Xor, "operator^"},
+ {"eq", OperatorInfo::Binary, false, Node::Prec::Equality, "operator=="},
+ {"ge", OperatorInfo::Binary, false, Node::Prec::Relational, "operator>="},
+ {"gt", OperatorInfo::Binary, false, Node::Prec::Relational, "operator>"},
+ {"ix", OperatorInfo::Array, false, Node::Prec::Postfix, "operator[]"},
+ {"lS", OperatorInfo::Binary, false, Node::Prec::Assign, "operator<<="},
+ {"le", OperatorInfo::Binary, false, Node::Prec::Relational, "operator<="},
+ {"ls", OperatorInfo::Binary, false, Node::Prec::Shift, "operator<<"},
+ {"lt", OperatorInfo::Binary, false, Node::Prec::Relational, "operator<"},
+ {"mI", OperatorInfo::Binary, false, Node::Prec::Assign, "operator-="},
+ {"mL", OperatorInfo::Binary, false, Node::Prec::Assign, "operator*="},
+ {"mi", OperatorInfo::Binary, false, Node::Prec::Additive, "operator-"},
+ {"ml", OperatorInfo::Binary, false, Node::Prec::Multiplicative,
+ "operator*"},
+ {"mm", OperatorInfo::Postfix, false, Node::Prec::Postfix, "operator--"},
+ {"na", OperatorInfo::New, /*Ary*/ true, Node::Prec::Unary,
+ "operator new[]"},
+ {"ne", OperatorInfo::Binary, false, Node::Prec::Equality, "operator!="},
+ {"ng", OperatorInfo::Prefix, false, Node::Prec::Unary, "operator-"},
+ {"nt", OperatorInfo::Prefix, false, Node::Prec::Unary, "operator!"},
+ {"nw", OperatorInfo::New, /*Ary*/ false, Node::Prec::Unary, "operator new"},
+ {"oR", OperatorInfo::Binary, false, Node::Prec::Assign, "operator|="},
+ {"oo", OperatorInfo::Binary, false, Node::Prec::OrIf, "operator||"},
+ {"or", OperatorInfo::Binary, false, Node::Prec::Ior, "operator|"},
+ {"pL", OperatorInfo::Binary, false, Node::Prec::Assign, "operator+="},
+ {"pl", OperatorInfo::Binary, false, Node::Prec::Additive, "operator+"},
+ {"pm", OperatorInfo::Member, /*Named*/ false, Node::Prec::PtrMem,
+ "operator->*"},
+ {"pp", OperatorInfo::Postfix, false, Node::Prec::Postfix, "operator++"},
+ {"ps", OperatorInfo::Prefix, false, Node::Prec::Unary, "operator+"},
+ {"pt", OperatorInfo::Member, /*Named*/ true, Node::Prec::Postfix,
+ "operator->"},
+ {"qu", OperatorInfo::Conditional, false, Node::Prec::Conditional,
+ "operator?"},
+ {"rM", OperatorInfo::Binary, false, Node::Prec::Assign, "operator%="},
+ {"rS", OperatorInfo::Binary, false, Node::Prec::Assign, "operator>>="},
+ {"rc", OperatorInfo::NamedCast, false, Node::Prec::Postfix,
+ "reinterpret_cast"},
+ {"rm", OperatorInfo::Binary, false, Node::Prec::Multiplicative,
+ "operator%"},
+ {"rs", OperatorInfo::Binary, false, Node::Prec::Shift, "operator>>"},
+ {"sc", OperatorInfo::NamedCast, false, Node::Prec::Postfix, "static_cast"},
+ {"ss", OperatorInfo::Binary, false, Node::Prec::Spaceship, "operator<=>"},
+ {"st", OperatorInfo::OfIdOp, /*Type*/ true, Node::Prec::Unary, "sizeof "},
+ {"sz", OperatorInfo::OfIdOp, /*Type*/ false, Node::Prec::Unary, "sizeof "},
+ {"te", OperatorInfo::OfIdOp, /*Type*/ false, Node::Prec::Postfix,
+ "typeid "},
+ {"ti", OperatorInfo::OfIdOp, /*Type*/ true, Node::Prec::Postfix, "typeid "},
+};
+template <typename Derived, typename Alloc>
+const size_t AbstractManglingParser<Derived, Alloc>::NumOps = sizeof(Ops) /
+ sizeof(Ops[0]);
+
+// If the next 2 chars are an operator encoding, consume them and return their
+// OperatorInfo. Otherwise return nullptr.
+template <typename Derived, typename Alloc>
+const typename AbstractManglingParser<Derived, Alloc>::OperatorInfo *
+AbstractManglingParser<Derived, Alloc>::parseOperatorEncoding() {
+ if (numLeft() < 2)
+ return nullptr;
+
+ // We can't use lower_bound as that can link to symbols in the C++ library,
+ // and this must remain independant of that.
+ size_t lower = 0u, upper = NumOps - 1; // Inclusive bounds.
+ while (upper != lower) {
+ size_t middle = (upper + lower) / 2;
+ if (Ops[middle] < First)
+ lower = middle + 1;
+ else
+ upper = middle;
+ }
+ if (Ops[lower] != First)
+ return nullptr;
+
+ First += 2;
+ return &Ops[lower];
+}
+
+// <operator-name> ::= See parseOperatorEncoding()
// ::= li <source-name> # operator ""
-// ::= ls # <<
-// ::= lS # <<=
-// ::= lt # <
-// ::= mi # -
-// ::= mI # -=
-// ::= ml # *
-// ::= mL # *=
-// ::= mm # -- (postfix in <expression> context)
-// ::= na # new[]
-// ::= ne # !=
-// ::= ng # - (unary)
-// ::= nt # !
-// ::= nw # new
-// ::= oo # ||
-// ::= or # |
-// ::= oR # |=
-// ::= pm # ->*
-// ::= pl # +
-// ::= pL # +=
-// ::= pp # ++ (postfix in <expression> context)
-// ::= ps # + (unary)
-// ::= pt # ->
-// ::= qu # ?
-// ::= rm # %
-// ::= rM # %=
-// ::= rs # >>
-// ::= rS # >>=
-// ::= ss # <=> C++2a
-// ::= v <digit> <source-name> # vendor extended operator
+// ::= v <digit> <source-name> # vendor extended operator
template <typename Derived, typename Alloc>
Node *
AbstractManglingParser<Derived, Alloc>::parseOperatorName(NameState *State) {
- switch (look()) {
- case 'a':
- switch (look(1)) {
- case 'a':
- First += 2;
- return make<NameType>("operator&&");
- case 'd':
- case 'n':
- First += 2;
- return make<NameType>("operator&");
- case 'N':
- First += 2;
- return make<NameType>("operator&=");
- case 'S':
- First += 2;
- return make<NameType>("operator=");
- }
- return nullptr;
- case 'c':
- switch (look(1)) {
- case 'l':
- First += 2;
- return make<NameType>("operator()");
- case 'm':
- First += 2;
- return make<NameType>("operator,");
- case 'o':
- First += 2;
- return make<NameType>("operator~");
- // ::= cv <type> # (cast)
- case 'v': {
- First += 2;
- SwapAndRestore<bool> SaveTemplate(TryToParseTemplateArgs, false);
+ if (const auto *Op = parseOperatorEncoding()) {
+ if (Op->getKind() == OperatorInfo::CCast) {
+ // ::= cv <type> # (cast)
+ ScopedOverride<bool> SaveTemplate(TryToParseTemplateArgs, false);
// If we're parsing an encoding, State != nullptr and the conversion
// operators' <type> could have a <template-param> that refers to some
// <template-arg>s further ahead in the mangled name.
- SwapAndRestore<bool> SavePermit(PermitForwardTemplateReferences,
+ ScopedOverride<bool> SavePermit(PermitForwardTemplateReferences,
PermitForwardTemplateReferences ||
State != nullptr);
Node *Ty = getDerived().parseType();
@@ -2867,185 +3079,29 @@ AbstractManglingParser<Derived, Alloc>::parseOperatorName(NameState *State) {
if (State) State->CtorDtorConversion = true;
return make<ConversionOperatorType>(Ty);
}
- }
- return nullptr;
- case 'd':
- switch (look(1)) {
- case 'a':
- First += 2;
- return make<NameType>("operator delete[]");
- case 'e':
- First += 2;
- return make<NameType>("operator*");
- case 'l':
- First += 2;
- return make<NameType>("operator delete");
- case 'v':
- First += 2;
- return make<NameType>("operator/");
- case 'V':
- First += 2;
- return make<NameType>("operator/=");
- }
- return nullptr;
- case 'e':
- switch (look(1)) {
- case 'o':
- First += 2;
- return make<NameType>("operator^");
- case 'O':
- First += 2;
- return make<NameType>("operator^=");
- case 'q':
- First += 2;
- return make<NameType>("operator==");
- }
- return nullptr;
- case 'g':
- switch (look(1)) {
- case 'e':
- First += 2;
- return make<NameType>("operator>=");
- case 't':
- First += 2;
- return make<NameType>("operator>");
- }
- return nullptr;
- case 'i':
- if (look(1) == 'x') {
- First += 2;
- return make<NameType>("operator[]");
- }
- return nullptr;
- case 'l':
- switch (look(1)) {
- case 'e':
- First += 2;
- return make<NameType>("operator<=");
+
+ if (Op->getKind() >= OperatorInfo::Unnameable)
+ /* Not a nameable operator. */
+ return nullptr;
+ if (Op->getKind() == OperatorInfo::Member && !Op->getFlag())
+ /* Not a nameable MemberExpr */
+ return nullptr;
+
+ return make<NameType>(Op->getName());
+ }
+
+ if (consumeIf("li")) {
// ::= li <source-name> # operator ""
- case 'i': {
- First += 2;
- Node *SN = getDerived().parseSourceName(State);
- if (SN == nullptr)
- return nullptr;
- return make<LiteralOperator>(SN);
- }
- case 's':
- First += 2;
- return make<NameType>("operator<<");
- case 'S':
- First += 2;
- return make<NameType>("operator<<=");
- case 't':
- First += 2;
- return make<NameType>("operator<");
- }
- return nullptr;
- case 'm':
- switch (look(1)) {
- case 'i':
- First += 2;
- return make<NameType>("operator-");
- case 'I':
- First += 2;
- return make<NameType>("operator-=");
- case 'l':
- First += 2;
- return make<NameType>("operator*");
- case 'L':
- First += 2;
- return make<NameType>("operator*=");
- case 'm':
- First += 2;
- return make<NameType>("operator--");
- }
- return nullptr;
- case 'n':
- switch (look(1)) {
- case 'a':
- First += 2;
- return make<NameType>("operator new[]");
- case 'e':
- First += 2;
- return make<NameType>("operator!=");
- case 'g':
- First += 2;
- return make<NameType>("operator-");
- case 't':
- First += 2;
- return make<NameType>("operator!");
- case 'w':
- First += 2;
- return make<NameType>("operator new");
- }
- return nullptr;
- case 'o':
- switch (look(1)) {
- case 'o':
- First += 2;
- return make<NameType>("operator||");
- case 'r':
- First += 2;
- return make<NameType>("operator|");
- case 'R':
- First += 2;
- return make<NameType>("operator|=");
- }
- return nullptr;
- case 'p':
- switch (look(1)) {
- case 'm':
- First += 2;
- return make<NameType>("operator->*");
- case 'l':
- First += 2;
- return make<NameType>("operator+");
- case 'L':
- First += 2;
- return make<NameType>("operator+=");
- case 'p':
- First += 2;
- return make<NameType>("operator++");
- case 's':
- First += 2;
- return make<NameType>("operator+");
- case 't':
- First += 2;
- return make<NameType>("operator->");
- }
- return nullptr;
- case 'q':
- if (look(1) == 'u') {
- First += 2;
- return make<NameType>("operator?");
- }
- return nullptr;
- case 'r':
- switch (look(1)) {
- case 'm':
- First += 2;
- return make<NameType>("operator%");
- case 'M':
- First += 2;
- return make<NameType>("operator%=");
- case 's':
- First += 2;
- return make<NameType>("operator>>");
- case 'S':
- First += 2;
- return make<NameType>("operator>>=");
- }
- return nullptr;
- case 's':
- if (look(1) == 's') {
- First += 2;
- return make<NameType>("operator<=>");
- }
- return nullptr;
- // ::= v <digit> <source-name> # vendor extended operator
- case 'v':
- if (std::isdigit(look(1))) {
- First += 2;
+ Node *SN = getDerived().parseSourceName(State);
+ if (SN == nullptr)
+ return nullptr;
+ return make<LiteralOperator>(SN);
+ }
+
+ if (consumeIf('v')) {
+ // ::= v <digit> <source-name> # vendor extended operator
+ if (look() >= '0' && look() <= '9') {
+ First++;
Node *SN = getDerived().parseSourceName(State);
if (SN == nullptr)
return nullptr;
@@ -3053,6 +3109,7 @@ AbstractManglingParser<Derived, Alloc>::parseOperatorName(NameState *State) {
}
return nullptr;
}
+
return nullptr;
}
@@ -3071,19 +3128,11 @@ Node *
AbstractManglingParser<Derived, Alloc>::parseCtorDtorName(Node *&SoFar,
NameState *State) {
if (SoFar->getKind() == Node::KSpecialSubstitution) {
- auto SSK = static_cast<SpecialSubstitution *>(SoFar)->SSK;
- switch (SSK) {
- case SpecialSubKind::string:
- case SpecialSubKind::istream:
- case SpecialSubKind::ostream:
- case SpecialSubKind::iostream:
- SoFar = make<ExpandedSpecialSubstitution>(SSK);
- if (!SoFar)
- return nullptr;
- break;
- default:
- break;
- }
+ // Expand the special substitution.
+ SoFar = make<ExpandedSpecialSubstitution>(
+ static_cast<SpecialSubstitution *>(SoFar));
+ if (!SoFar)
+ return nullptr;
}
if (consumeIf('C')) {
@@ -3112,8 +3161,10 @@ AbstractManglingParser<Derived, Alloc>::parseCtorDtorName(Node *&SoFar,
return nullptr;
}
-// <nested-name> ::= N [<CV-Qualifiers>] [<ref-qualifier>] <prefix> <unqualified-name> E
-// ::= N [<CV-Qualifiers>] [<ref-qualifier>] <template-prefix> <template-args> E
+// <nested-name> ::= N [<CV-Qualifiers>] [<ref-qualifier>] <prefix>
+// <unqualified-name> E
+// ::= N [<CV-Qualifiers>] [<ref-qualifier>] <template-prefix>
+// <template-args> E
//
// <prefix> ::= <prefix> <unqualified-name>
// ::= <template-prefix> <template-args>
@@ -3122,7 +3173,7 @@ AbstractManglingParser<Derived, Alloc>::parseCtorDtorName(Node *&SoFar,
// ::= # empty
// ::= <substitution>
// ::= <prefix> <data-member-prefix>
-// extension ::= L
+// [*] extension
//
// <data-member-prefix> := <member source-name> [<template-args>] M
//
@@ -3142,90 +3193,76 @@ AbstractManglingParser<Derived, Alloc>::parseNestedName(NameState *State) {
if (State) State->ReferenceQualifier = FrefQualRValue;
} else if (consumeIf('R')) {
if (State) State->ReferenceQualifier = FrefQualLValue;
- } else
+ } else {
if (State) State->ReferenceQualifier = FrefQualNone;
-
- Node *SoFar = nullptr;
- auto PushComponent = [&](Node *Comp) {
- if (!Comp) return false;
- if (SoFar) SoFar = make<NestedName>(SoFar, Comp);
- else SoFar = Comp;
- if (State) State->EndsWithTemplateArgs = false;
- return SoFar != nullptr;
- };
-
- if (consumeIf("St")) {
- SoFar = make<NameType>("std");
- if (!SoFar)
- return nullptr;
}
+ Node *SoFar = nullptr;
while (!consumeIf('E')) {
- consumeIf('L'); // extension
+ if (State)
+ // Only set end-with-template on the case that does that.
+ State->EndsWithTemplateArgs = false;
- // <data-member-prefix> := <member source-name> [<template-args>] M
- if (consumeIf('M')) {
- if (SoFar == nullptr)
- return nullptr;
- continue;
- }
-
- // ::= <template-param>
if (look() == 'T') {
- if (!PushComponent(getDerived().parseTemplateParam()))
- return nullptr;
- Subs.push_back(SoFar);
- continue;
- }
-
- // ::= <template-prefix> <template-args>
- if (look() == 'I') {
+ // ::= <template-param>
+ if (SoFar != nullptr)
+ return nullptr; // Cannot have a prefix.
+ SoFar = getDerived().parseTemplateParam();
+ } else if (look() == 'I') {
+ // ::= <template-prefix> <template-args>
+ if (SoFar == nullptr)
+ return nullptr; // Must have a prefix.
Node *TA = getDerived().parseTemplateArgs(State != nullptr);
- if (TA == nullptr || SoFar == nullptr)
+ if (TA == nullptr)
return nullptr;
+ if (SoFar->getKind() == Node::KNameWithTemplateArgs)
+ // Semantically <template-args> <template-args> cannot be generated by a
+ // C++ entity. There will always be [something like] a name between
+ // them.
+ return nullptr;
+ if (State)
+ State->EndsWithTemplateArgs = true;
SoFar = make<NameWithTemplateArgs>(SoFar, TA);
- if (!SoFar)
- return nullptr;
- if (State) State->EndsWithTemplateArgs = true;
- Subs.push_back(SoFar);
- continue;
+ } else if (look() == 'D' && (look(1) == 't' || look(1) == 'T')) {
+ // ::= <decltype>
+ if (SoFar != nullptr)
+ return nullptr; // Cannot have a prefix.
+ SoFar = getDerived().parseDecltype();
+ } else {
+ ModuleName *Module = nullptr;
+
+ if (look() == 'S') {
+ // ::= <substitution>
+ Node *S = nullptr;
+ if (look(1) == 't') {
+ First += 2;
+ S = make<NameType>("std");
+ } else {
+ S = getDerived().parseSubstitution();
+ }
+ if (!S)
+ return nullptr;
+ if (S->getKind() == Node::KModuleName) {
+ Module = static_cast<ModuleName *>(S);
+ } else if (SoFar != nullptr) {
+ return nullptr; // Cannot have a prefix.
+ } else {
+ SoFar = S;
+ continue; // Do not push a new substitution.
+ }
+ }
+
+ // ::= [<prefix>] <unqualified-name>
+ SoFar = getDerived().parseUnqualifiedName(State, SoFar, Module);
}
- // ::= <decltype>
- if (look() == 'D' && (look(1) == 't' || look(1) == 'T')) {
- if (!PushComponent(getDerived().parseDecltype()))
- return nullptr;
- Subs.push_back(SoFar);
- continue;
- }
-
- // ::= <substitution>
- if (look() == 'S' && look(1) != 't') {
- Node *S = getDerived().parseSubstitution();
- if (!PushComponent(S))
- return nullptr;
- if (SoFar != S)
- Subs.push_back(S);
- continue;
- }
-
- // Parse an <unqualified-name> thats actually a <ctor-dtor-name>.
- if (look() == 'C' || (look() == 'D' && look(1) != 'C')) {
- if (SoFar == nullptr)
- return nullptr;
- if (!PushComponent(getDerived().parseCtorDtorName(SoFar, State)))
- return nullptr;
- SoFar = getDerived().parseAbiTags(SoFar);
- if (SoFar == nullptr)
- return nullptr;
- Subs.push_back(SoFar);
- continue;
- }
-
- // ::= <prefix> <unqualified-name>
- if (!PushComponent(getDerived().parseUnqualifiedName(State)))
+ if (SoFar == nullptr)
return nullptr;
Subs.push_back(SoFar);
+
+ // No longer used.
+ // <data-member-prefix> := <member source-name> [<template-args>] M
+ consumeIf('M');
}
if (SoFar == nullptr || Subs.empty())
@@ -3320,6 +3357,7 @@ Node *AbstractManglingParser<Derived, Alloc>::parseBaseUnresolvedName() {
// ::= [gs] <base-unresolved-name> # x or (with "gs") ::x
// ::= [gs] sr <unresolved-qualifier-level>+ E <base-unresolved-name>
// # A::x, N::y, A<T>::z; "gs" means leading "::"
+// [gs] has been parsed by caller.
// ::= sr <unresolved-type> <base-unresolved-name> # T::x / decltype(p)::x
// extension ::= sr <unresolved-type> <template-args> <base-unresolved-name>
// # T::N::x /decltype(p)::N::x
@@ -3327,7 +3365,7 @@ Node *AbstractManglingParser<Derived, Alloc>::parseBaseUnresolvedName() {
//
// <unresolved-qualifier-level> ::= <simple-id>
template <typename Derived, typename Alloc>
-Node *AbstractManglingParser<Derived, Alloc>::parseUnresolvedName() {
+Node *AbstractManglingParser<Derived, Alloc>::parseUnresolvedName(bool Global) {
Node *SoFar = nullptr;
// srN <unresolved-type> [<template-args>] <unresolved-qualifier-level>* E <base-unresolved-name>
@@ -3361,8 +3399,6 @@ Node *AbstractManglingParser<Derived, Alloc>::parseUnresolvedName() {
return make<QualifiedName>(SoFar, Base);
}
- bool Global = consumeIf("gs");
-
// [gs] <base-unresolved-name> # x or (with "gs") ::x
if (!consumeIf("sr")) {
SoFar = getDerived().parseBaseUnresolvedName();
@@ -3419,7 +3455,7 @@ Node *AbstractManglingParser<Derived, Alloc>::parseUnresolvedName() {
template <typename Derived, typename Alloc>
Node *AbstractManglingParser<Derived, Alloc>::parseAbiTags(Node *N) {
while (consumeIf('B')) {
- StringView SN = parseBareSourceName();
+ std::string_view SN = parseBareSourceName();
if (SN.empty())
return nullptr;
N = make<AbiTagAttr>(N, SN);
@@ -3431,16 +3467,16 @@ Node *AbstractManglingParser<Derived, Alloc>::parseAbiTags(Node *N) {
// <number> ::= [n] <non-negative decimal integer>
template <typename Alloc, typename Derived>
-StringView
+std::string_view
AbstractManglingParser<Alloc, Derived>::parseNumber(bool AllowNegative) {
const char *Tmp = First;
if (AllowNegative)
consumeIf('n');
if (numLeft() == 0 || !std::isdigit(*First))
- return StringView();
+ return std::string_view();
while (numLeft() != 0 && std::isdigit(*First))
++First;
- return StringView(Tmp, First);
+ return std::string_view(Tmp, First - Tmp);
}
// <positive length number> ::= [0-9]*
@@ -3457,11 +3493,11 @@ bool AbstractManglingParser<Alloc, Derived>::parsePositiveInteger(size_t *Out) {
}
template <typename Alloc, typename Derived>
-StringView AbstractManglingParser<Alloc, Derived>::parseBareSourceName() {
+std::string_view AbstractManglingParser<Alloc, Derived>::parseBareSourceName() {
size_t Int = 0;
if (parsePositiveInteger(&Int) || numLeft() < Int)
- return StringView();
- StringView R(First, First + Int);
+ return {};
+ std::string_view R(First, Int);
First += Int;
return R;
}
@@ -3549,7 +3585,9 @@ Node *AbstractManglingParser<Derived, Alloc>::parseVectorType() {
if (!consumeIf("Dv"))
return nullptr;
if (look() >= '1' && look() <= '9') {
- StringView DimensionNumber = parseNumber();
+ Node *DimensionNumber = make<NameType>(parseNumber());
+ if (!DimensionNumber)
+ return nullptr;
if (!consumeIf('_'))
return nullptr;
if (consumeIf('p'))
@@ -3574,7 +3612,7 @@ Node *AbstractManglingParser<Derived, Alloc>::parseVectorType() {
Node *ElemType = getDerived().parseType();
if (!ElemType)
return nullptr;
- return make<VectorType>(ElemType, StringView());
+ return make<VectorType>(ElemType, /*Dimension=*/nullptr);
}
// <decltype> ::= Dt <expression> E # decltype of an id-expression or class member access (C++0x)
@@ -3590,7 +3628,7 @@ Node *AbstractManglingParser<Derived, Alloc>::parseDecltype() {
return nullptr;
if (!consumeIf('E'))
return nullptr;
- return make<EnclosingExpr>("decltype(", E, ")");
+ return make<EnclosingExpr>("decltype", E);
}
// <array-type> ::= A <positive dimension number> _ <element type>
@@ -3600,10 +3638,12 @@ Node *AbstractManglingParser<Derived, Alloc>::parseArrayType() {
if (!consumeIf('A'))
return nullptr;
- NodeOrString Dimension;
+ Node *Dimension = nullptr;
if (std::isdigit(look())) {
- Dimension = parseNumber();
+ Dimension = make<NameType>(parseNumber());
+ if (!Dimension)
+ return nullptr;
if (!consumeIf('_'))
return nullptr;
} else if (!consumeIf('_')) {
@@ -3641,7 +3681,7 @@ Node *AbstractManglingParser<Derived, Alloc>::parsePointerToMemberType() {
// ::= Te <name> # dependent elaborated type specifier using 'enum'
template <typename Derived, typename Alloc>
Node *AbstractManglingParser<Derived, Alloc>::parseClassEnumType() {
- StringView ElabSpef;
+ std::string_view ElabSpef;
if (consumeIf("Ts"))
ElabSpef = "struct";
else if (consumeIf("Tu"))
@@ -3665,19 +3705,18 @@ Node *AbstractManglingParser<Derived, Alloc>::parseClassEnumType() {
template <typename Derived, typename Alloc>
Node *AbstractManglingParser<Derived, Alloc>::parseQualifiedType() {
if (consumeIf('U')) {
- StringView Qual = parseBareSourceName();
+ std::string_view Qual = parseBareSourceName();
if (Qual.empty())
return nullptr;
- // FIXME parse the optional <template-args> here!
-
// extension ::= U <objc-name> <objc-type> # objc-type<identifier>
- if (Qual.startsWith("objcproto")) {
- StringView ProtoSourceName = Qual.dropFront(std::strlen("objcproto"));
- StringView Proto;
+ if (llvm::itanium_demangle::starts_with(Qual, "objcproto")) {
+ constexpr size_t Len = sizeof("objcproto") - 1;
+ std::string_view ProtoSourceName(Qual.data() + Len, Qual.size() - Len);
+ std::string_view Proto;
{
- SwapAndRestore<const char *> SaveFirst(First, ProtoSourceName.begin()),
- SaveLast(Last, ProtoSourceName.end());
+ ScopedOverride<const char *> SaveFirst(First, ProtoSourceName.data()),
+ SaveLast(Last, &*ProtoSourceName.rbegin() + 1);
Proto = parseBareSourceName();
}
if (Proto.empty())
@@ -3688,10 +3727,17 @@ Node *AbstractManglingParser<Derived, Alloc>::parseQualifiedType() {
return make<ObjCProtoName>(Child, Proto);
}
+ Node *TA = nullptr;
+ if (look() == 'I') {
+ TA = getDerived().parseTemplateArgs();
+ if (TA == nullptr)
+ return nullptr;
+ }
+
Node *Child = getDerived().parseQualifiedType();
if (Child == nullptr)
return nullptr;
- return make<VendorExtQualType>(Child, Qual);
+ return make<VendorExtQualType>(Child, Qual, TA);
}
Qualifiers Quals = parseCVQualifiers();
@@ -3838,7 +3884,7 @@ Node *AbstractManglingParser<Derived, Alloc>::parseType() {
// <builtin-type> ::= u <source-name> # vendor extended type
case 'u': {
++First;
- StringView Res = parseBareSourceName();
+ std::string_view Res = parseBareSourceName();
if (Res.empty())
return nullptr;
// Typically, <builtin-type>s are not considered substitution candidates,
@@ -3864,7 +3910,33 @@ Node *AbstractManglingParser<Derived, Alloc>::parseType() {
// ::= Dh # IEEE 754r half-precision floating point (16 bits)
case 'h':
First += 2;
- return make<NameType>("decimal16");
+ return make<NameType>("half");
+ // ::= DF <number> _ # ISO/IEC TS 18661 binary floating point (N bits)
+ case 'F': {
+ First += 2;
+ Node *DimensionNumber = make<NameType>(parseNumber());
+ if (!DimensionNumber)
+ return nullptr;
+ if (!consumeIf('_'))
+ return nullptr;
+ return make<BinaryFPType>(DimensionNumber);
+ }
+ // ::= DB <number> _ # C23 signed _BitInt(N)
+ // ::= DB <instantiation-dependent expression> _ # C23 signed _BitInt(N)
+ // ::= DU <number> _ # C23 unsigned _BitInt(N)
+ // ::= DU <instantiation-dependent expression> _ # C23 unsigned _BitInt(N)
+ case 'B':
+ case 'U': {
+ bool Signed = look(1) == 'B';
+ First += 2;
+ Node *Size = std::isdigit(look()) ? make<NameType>(parseNumber())
+ : getDerived().parseExpr();
+ if (!Size)
+ return nullptr;
+ if (!consumeIf('_'))
+ return nullptr;
+ return make<BitIntType>(Size, Signed);
+ }
// ::= Di # char32_t
case 'i':
First += 2;
@@ -4012,9 +4084,10 @@ Node *AbstractManglingParser<Derived, Alloc>::parseType() {
}
// ::= <substitution> # See Compression below
case 'S': {
- if (look(1) && look(1) != 't') {
- Node *Sub = getDerived().parseSubstitution();
- if (Sub == nullptr)
+ if (look(1) != 't') {
+ bool IsSubst = false;
+ Result = getDerived().parseUnscopedName(nullptr, &IsSubst);
+ if (!Result)
return nullptr;
// Sub could be either of:
@@ -4027,17 +4100,19 @@ Node *AbstractManglingParser<Derived, Alloc>::parseType() {
// If this is followed by some <template-args>, and we're permitted to
// parse them, take the second production.
- if (TryToParseTemplateArgs && look() == 'I') {
+ if (look() == 'I' && (!IsSubst || TryToParseTemplateArgs)) {
+ if (!IsSubst)
+ Subs.push_back(Result);
Node *TA = getDerived().parseTemplateArgs();
if (TA == nullptr)
return nullptr;
- Result = make<NameWithTemplateArgs>(Sub, TA);
- break;
+ Result = make<NameWithTemplateArgs>(Result, TA);
+ } else if (IsSubst) {
+ // If all we parsed was a substitution, don't re-insert into the
+ // substitution table.
+ return Result;
}
-
- // If all we parsed was a substitution, don't re-insert into the
- // substitution table.
- return Sub;
+ break;
}
DEMANGLE_FALLTHROUGH;
}
@@ -4057,28 +4132,32 @@ Node *AbstractManglingParser<Derived, Alloc>::parseType() {
}
template <typename Derived, typename Alloc>
-Node *AbstractManglingParser<Derived, Alloc>::parsePrefixExpr(StringView Kind) {
+Node *
+AbstractManglingParser<Derived, Alloc>::parsePrefixExpr(std::string_view Kind,
+ Node::Prec Prec) {
Node *E = getDerived().parseExpr();
if (E == nullptr)
return nullptr;
- return make<PrefixExpr>(Kind, E);
+ return make<PrefixExpr>(Kind, E, Prec);
}
template <typename Derived, typename Alloc>
-Node *AbstractManglingParser<Derived, Alloc>::parseBinaryExpr(StringView Kind) {
+Node *
+AbstractManglingParser<Derived, Alloc>::parseBinaryExpr(std::string_view Kind,
+ Node::Prec Prec) {
Node *LHS = getDerived().parseExpr();
if (LHS == nullptr)
return nullptr;
Node *RHS = getDerived().parseExpr();
if (RHS == nullptr)
return nullptr;
- return make<BinaryExpr>(LHS, Kind, RHS);
+ return make<BinaryExpr>(LHS, Kind, RHS, Prec);
}
template <typename Derived, typename Alloc>
-Node *
-AbstractManglingParser<Derived, Alloc>::parseIntegerLiteral(StringView Lit) {
- StringView Tmp = parseNumber(true);
+Node *AbstractManglingParser<Derived, Alloc>::parseIntegerLiteral(
+ std::string_view Lit) {
+ std::string_view Tmp = parseNumber(true);
if (!Tmp.empty() && consumeIf('E'))
return make<IntegerLiteral>(Lit, Tmp);
return nullptr;
@@ -4101,11 +4180,14 @@ Qualifiers AbstractManglingParser<Alloc, Derived>::parseCVQualifiers() {
// ::= fp <top-level CV-Qualifiers> <parameter-2 non-negative number> _ # L == 0, second and later parameters
// ::= fL <L-1 non-negative number> p <top-level CV-Qualifiers> _ # L > 0, first parameter
// ::= fL <L-1 non-negative number> p <top-level CV-Qualifiers> <parameter-2 non-negative number> _ # L > 0, second and later parameters
+// ::= fpT # 'this' expression (not part of standard?)
template <typename Derived, typename Alloc>
Node *AbstractManglingParser<Derived, Alloc>::parseFunctionParam() {
+ if (consumeIf("fpT"))
+ return make<NameType>("this");
if (consumeIf("fp")) {
parseCVQualifiers();
- StringView Num = parseNumber();
+ std::string_view Num = parseNumber();
if (!consumeIf('_'))
return nullptr;
return make<FunctionParam>(Num);
@@ -4116,7 +4198,7 @@ Node *AbstractManglingParser<Derived, Alloc>::parseFunctionParam() {
if (!consumeIf('p'))
return nullptr;
parseCVQualifiers();
- StringView Num = parseNumber();
+ std::string_view Num = parseNumber();
if (!consumeIf('_'))
return nullptr;
return make<FunctionParam>(Num);
@@ -4124,43 +4206,6 @@ Node *AbstractManglingParser<Derived, Alloc>::parseFunctionParam() {
return nullptr;
}
-// [gs] nw <expression>* _ <type> E # new (expr-list) type
-// [gs] nw <expression>* _ <type> <initializer> # new (expr-list) type (init)
-// [gs] na <expression>* _ <type> E # new[] (expr-list) type
-// [gs] na <expression>* _ <type> <initializer> # new[] (expr-list) type (init)
-// <initializer> ::= pi <expression>* E # parenthesized initialization
-template <typename Derived, typename Alloc>
-Node *AbstractManglingParser<Derived, Alloc>::parseNewExpr() {
- bool Global = consumeIf("gs");
- bool IsArray = look(1) == 'a';
- if (!consumeIf("nw") && !consumeIf("na"))
- return nullptr;
- size_t Exprs = Names.size();
- while (!consumeIf('_')) {
- Node *Ex = getDerived().parseExpr();
- if (Ex == nullptr)
- return nullptr;
- Names.push_back(Ex);
- }
- NodeArray ExprList = popTrailingNodeArray(Exprs);
- Node *Ty = getDerived().parseType();
- if (Ty == nullptr)
- return Ty;
- if (consumeIf("pi")) {
- size_t InitsBegin = Names.size();
- while (!consumeIf('E')) {
- Node *Init = getDerived().parseExpr();
- if (Init == nullptr)
- return Init;
- Names.push_back(Init);
- }
- NodeArray Inits = popTrailingNodeArray(InitsBegin);
- return make<NewExpr>(ExprList, Ty, Inits, Global, IsArray);
- } else if (!consumeIf('E'))
- return nullptr;
- return make<NewExpr>(ExprList, Ty, NodeArray(), Global, IsArray);
-}
-
// cv <type> <expression> # conversion with one argument
// cv <type> _ <expression>* E # conversion with a different number of arguments
template <typename Derived, typename Alloc>
@@ -4169,7 +4214,7 @@ Node *AbstractManglingParser<Derived, Alloc>::parseConversionExpr() {
return nullptr;
Node *Ty;
{
- SwapAndRestore<bool> SaveTemp(TryToParseTemplateArgs, false);
+ ScopedOverride<bool> SaveTemp(TryToParseTemplateArgs, false);
Ty = getDerived().parseType();
}
@@ -4262,7 +4307,13 @@ Node *AbstractManglingParser<Derived, Alloc>::parseExprPrimary() {
return getDerived().template parseFloatingLiteral<double>();
case 'e':
++First;
+#if defined(__powerpc__) || defined(__s390__)
+ // Handle cases where long doubles encoded with e have the same size
+ // and representation as doubles.
+ return getDerived().template parseFloatingLiteral<double>();
+#else
return getDerived().template parseFloatingLiteral<long double>();
+#endif
case '_':
if (consumeIf("_Z")) {
Node *R = getDerived().parseEncoding();
@@ -4280,7 +4331,7 @@ Node *AbstractManglingParser<Derived, Alloc>::parseExprPrimary() {
return nullptr;
}
case 'D':
- if (consumeIf("DnE"))
+ if (consumeIf("Dn") && (consumeIf('0'), consumeIf('E')))
return make<NameType>("nullptr");
return nullptr;
case 'T':
@@ -4301,12 +4352,12 @@ Node *AbstractManglingParser<Derived, Alloc>::parseExprPrimary() {
Node *T = getDerived().parseType();
if (T == nullptr)
return nullptr;
- StringView N = parseNumber();
+ std::string_view N = parseNumber(/*AllowNegative=*/true);
if (N.empty())
return nullptr;
if (!consumeIf('E'))
return nullptr;
- return make<IntegerCastExpr>(T, N);
+ return make<EnumLiteral>(T, N);
}
}
}
@@ -4367,55 +4418,38 @@ Node *AbstractManglingParser<Derived, Alloc>::parseFoldExpr() {
if (!consumeIf('f'))
return nullptr;
- char FoldKind = look();
- bool IsLeftFold, HasInitializer;
- HasInitializer = FoldKind == 'L' || FoldKind == 'R';
- if (FoldKind == 'l' || FoldKind == 'L')
- IsLeftFold = true;
- else if (FoldKind == 'r' || FoldKind == 'R')
- IsLeftFold = false;
- else
+ bool IsLeftFold = false, HasInitializer = false;
+ switch (look()) {
+ default:
return nullptr;
+ case 'L':
+ IsLeftFold = true;
+ HasInitializer = true;
+ break;
+ case 'R':
+ HasInitializer = true;
+ break;
+ case 'l':
+ IsLeftFold = true;
+ break;
+ case 'r':
+ break;
+ }
++First;
- // FIXME: This map is duplicated in parseOperatorName and parseExpr.
- StringView OperatorName;
- if (consumeIf("aa")) OperatorName = "&&";
- else if (consumeIf("an")) OperatorName = "&";
- else if (consumeIf("aN")) OperatorName = "&=";
- else if (consumeIf("aS")) OperatorName = "=";
- else if (consumeIf("cm")) OperatorName = ",";
- else if (consumeIf("ds")) OperatorName = ".*";
- else if (consumeIf("dv")) OperatorName = "/";
- else if (consumeIf("dV")) OperatorName = "/=";
- else if (consumeIf("eo")) OperatorName = "^";
- else if (consumeIf("eO")) OperatorName = "^=";
- else if (consumeIf("eq")) OperatorName = "==";
- else if (consumeIf("ge")) OperatorName = ">=";
- else if (consumeIf("gt")) OperatorName = ">";
- else if (consumeIf("le")) OperatorName = "<=";
- else if (consumeIf("ls")) OperatorName = "<<";
- else if (consumeIf("lS")) OperatorName = "<<=";
- else if (consumeIf("lt")) OperatorName = "<";
- else if (consumeIf("mi")) OperatorName = "-";
- else if (consumeIf("mI")) OperatorName = "-=";
- else if (consumeIf("ml")) OperatorName = "*";
- else if (consumeIf("mL")) OperatorName = "*=";
- else if (consumeIf("ne")) OperatorName = "!=";
- else if (consumeIf("oo")) OperatorName = "||";
- else if (consumeIf("or")) OperatorName = "|";
- else if (consumeIf("oR")) OperatorName = "|=";
- else if (consumeIf("pl")) OperatorName = "+";
- else if (consumeIf("pL")) OperatorName = "+=";
- else if (consumeIf("rm")) OperatorName = "%";
- else if (consumeIf("rM")) OperatorName = "%=";
- else if (consumeIf("rs")) OperatorName = ">>";
- else if (consumeIf("rS")) OperatorName = ">>=";
- else return nullptr;
+ const auto *Op = parseOperatorEncoding();
+ if (!Op)
+ return nullptr;
+ if (!(Op->getKind() == OperatorInfo::Binary
+ || (Op->getKind() == OperatorInfo::Member
+ && Op->getName().back() == '*')))
+ return nullptr;
- Node *Pack = getDerived().parseExpr(), *Init = nullptr;
+ Node *Pack = getDerived().parseExpr();
if (Pack == nullptr)
return nullptr;
+
+ Node *Init = nullptr;
if (HasInitializer) {
Init = getDerived().parseExpr();
if (Init == nullptr)
@@ -4425,7 +4459,53 @@ Node *AbstractManglingParser<Derived, Alloc>::parseFoldExpr() {
if (IsLeftFold && Init)
std::swap(Pack, Init);
- return make<FoldExpr>(IsLeftFold, OperatorName, Pack, Init);
+ return make<FoldExpr>(IsLeftFold, Op->getSymbol(), Pack, Init);
+}
+
+// <expression> ::= mc <parameter type> <expr> [<offset number>] E
+//
+// Not yet in the spec: https://github.com/itanium-cxx-abi/cxx-abi/issues/47
+template <typename Derived, typename Alloc>
+Node *
+AbstractManglingParser<Derived, Alloc>::parsePointerToMemberConversionExpr(
+ Node::Prec Prec) {
+ Node *Ty = getDerived().parseType();
+ if (!Ty)
+ return nullptr;
+ Node *Expr = getDerived().parseExpr();
+ if (!Expr)
+ return nullptr;
+ std::string_view Offset = getDerived().parseNumber(true);
+ if (!consumeIf('E'))
+ return nullptr;
+ return make<PointerToMemberConversionExpr>(Ty, Expr, Offset, Prec);
+}
+
+// <expression> ::= so <referent type> <expr> [<offset number>] <union-selector>* [p] E
+// <union-selector> ::= _ [<number>]
+//
+// Not yet in the spec: https://github.com/itanium-cxx-abi/cxx-abi/issues/47
+template <typename Derived, typename Alloc>
+Node *AbstractManglingParser<Derived, Alloc>::parseSubobjectExpr() {
+ Node *Ty = getDerived().parseType();
+ if (!Ty)
+ return nullptr;
+ Node *Expr = getDerived().parseExpr();
+ if (!Expr)
+ return nullptr;
+ std::string_view Offset = getDerived().parseNumber(true);
+ size_t SelectorsBegin = Names.size();
+ while (consumeIf('_')) {
+ Node *Selector = make<NameType>(parseNumber());
+ if (!Selector)
+ return nullptr;
+ Names.push_back(Selector);
+ }
+ bool OnePastTheEnd = consumeIf('p');
+ if (!consumeIf('E'))
+ return nullptr;
+ return make<SubobjectExpr>(
+ Ty, Expr, Offset, popTrailingNodeArray(SelectorsBegin), OnePastTheEnd);
}
// <expression> ::= <unary operator-name> <expression>
@@ -4475,313 +4555,127 @@ Node *AbstractManglingParser<Derived, Alloc>::parseFoldExpr() {
template <typename Derived, typename Alloc>
Node *AbstractManglingParser<Derived, Alloc>::parseExpr() {
bool Global = consumeIf("gs");
- if (numLeft() < 2)
- return nullptr;
- switch (*First) {
- case 'L':
- return getDerived().parseExprPrimary();
- case 'T':
- return getDerived().parseTemplateParam();
- case 'f': {
- // Disambiguate a fold expression from a <function-param>.
- if (look(1) == 'p' || (look(1) == 'L' && std::isdigit(look(2))))
- return getDerived().parseFunctionParam();
- return getDerived().parseFoldExpr();
- }
- case 'a':
- switch (First[1]) {
- case 'a':
- First += 2;
- return getDerived().parseBinaryExpr("&&");
- case 'd':
- First += 2;
- return getDerived().parsePrefixExpr("&");
- case 'n':
- First += 2;
- return getDerived().parseBinaryExpr("&");
- case 'N':
- First += 2;
- return getDerived().parseBinaryExpr("&=");
- case 'S':
- First += 2;
- return getDerived().parseBinaryExpr("=");
- case 't': {
- First += 2;
- Node *Ty = getDerived().parseType();
- if (Ty == nullptr)
- return nullptr;
- return make<EnclosingExpr>("alignof (", Ty, ")");
- }
- case 'z': {
- First += 2;
- Node *Ty = getDerived().parseExpr();
- if (Ty == nullptr)
- return nullptr;
- return make<EnclosingExpr>("alignof (", Ty, ")");
- }
- }
- return nullptr;
- case 'c':
- switch (First[1]) {
- // cc <type> <expression> # const_cast<type>(expression)
- case 'c': {
- First += 2;
- Node *Ty = getDerived().parseType();
- if (Ty == nullptr)
- return Ty;
+ const auto *Op = parseOperatorEncoding();
+ if (Op) {
+ auto Sym = Op->getSymbol();
+ switch (Op->getKind()) {
+ case OperatorInfo::Binary:
+ // Binary operator: lhs @ rhs
+ return getDerived().parseBinaryExpr(Sym, Op->getPrecedence());
+ case OperatorInfo::Prefix:
+ // Prefix unary operator: @ expr
+ return getDerived().parsePrefixExpr(Sym, Op->getPrecedence());
+ case OperatorInfo::Postfix: {
+ // Postfix unary operator: expr @
+ if (consumeIf('_'))
+ return getDerived().parsePrefixExpr(Sym, Op->getPrecedence());
Node *Ex = getDerived().parseExpr();
if (Ex == nullptr)
- return Ex;
- return make<CastExpr>("const_cast", Ty, Ex);
- }
- // cl <expression>+ E # call
- case 'l': {
- First += 2;
- Node *Callee = getDerived().parseExpr();
- if (Callee == nullptr)
- return Callee;
- size_t ExprsBegin = Names.size();
- while (!consumeIf('E')) {
- Node *E = getDerived().parseExpr();
- if (E == nullptr)
- return E;
- Names.push_back(E);
- }
- return make<CallExpr>(Callee, popTrailingNodeArray(ExprsBegin));
- }
- case 'm':
- First += 2;
- return getDerived().parseBinaryExpr(",");
- case 'o':
- First += 2;
- return getDerived().parsePrefixExpr("~");
- case 'v':
- return getDerived().parseConversionExpr();
- }
- return nullptr;
- case 'd':
- switch (First[1]) {
- case 'a': {
- First += 2;
- Node *Ex = getDerived().parseExpr();
- if (Ex == nullptr)
- return Ex;
- return make<DeleteExpr>(Ex, Global, /*is_array=*/true);
- }
- case 'c': {
- First += 2;
- Node *T = getDerived().parseType();
- if (T == nullptr)
- return T;
- Node *Ex = getDerived().parseExpr();
- if (Ex == nullptr)
- return Ex;
- return make<CastExpr>("dynamic_cast", T, Ex);
- }
- case 'e':
- First += 2;
- return getDerived().parsePrefixExpr("*");
- case 'l': {
- First += 2;
- Node *E = getDerived().parseExpr();
- if (E == nullptr)
- return E;
- return make<DeleteExpr>(E, Global, /*is_array=*/false);
- }
- case 'n':
- return getDerived().parseUnresolvedName();
- case 's': {
- First += 2;
- Node *LHS = getDerived().parseExpr();
- if (LHS == nullptr)
return nullptr;
- Node *RHS = getDerived().parseExpr();
- if (RHS == nullptr)
- return nullptr;
- return make<MemberExpr>(LHS, ".*", RHS);
+ return make<PostfixExpr>(Ex, Sym, Op->getPrecedence());
}
- case 't': {
- First += 2;
- Node *LHS = getDerived().parseExpr();
- if (LHS == nullptr)
- return LHS;
- Node *RHS = getDerived().parseExpr();
- if (RHS == nullptr)
- return nullptr;
- return make<MemberExpr>(LHS, ".", RHS);
- }
- case 'v':
- First += 2;
- return getDerived().parseBinaryExpr("/");
- case 'V':
- First += 2;
- return getDerived().parseBinaryExpr("/=");
- }
- return nullptr;
- case 'e':
- switch (First[1]) {
- case 'o':
- First += 2;
- return getDerived().parseBinaryExpr("^");
- case 'O':
- First += 2;
- return getDerived().parseBinaryExpr("^=");
- case 'q':
- First += 2;
- return getDerived().parseBinaryExpr("==");
- }
- return nullptr;
- case 'g':
- switch (First[1]) {
- case 'e':
- First += 2;
- return getDerived().parseBinaryExpr(">=");
- case 't':
- First += 2;
- return getDerived().parseBinaryExpr(">");
- }
- return nullptr;
- case 'i':
- switch (First[1]) {
- case 'x': {
- First += 2;
+ case OperatorInfo::Array: {
+ // Array Index: lhs [ rhs ]
Node *Base = getDerived().parseExpr();
if (Base == nullptr)
return nullptr;
Node *Index = getDerived().parseExpr();
if (Index == nullptr)
- return Index;
- return make<ArraySubscriptExpr>(Base, Index);
+ return nullptr;
+ return make<ArraySubscriptExpr>(Base, Index, Op->getPrecedence());
}
- case 'l': {
- First += 2;
+ case OperatorInfo::Member: {
+ // Member access lhs @ rhs
+ Node *LHS = getDerived().parseExpr();
+ if (LHS == nullptr)
+ return nullptr;
+ Node *RHS = getDerived().parseExpr();
+ if (RHS == nullptr)
+ return nullptr;
+ return make<MemberExpr>(LHS, Sym, RHS, Op->getPrecedence());
+ }
+ case OperatorInfo::New: {
+ // New
+ // # new (expr-list) type [(init)]
+ // [gs] nw <expression>* _ <type> [pi <expression>*] E
+ // # new[] (expr-list) type [(init)]
+ // [gs] na <expression>* _ <type> [pi <expression>*] E
+ size_t Exprs = Names.size();
+ while (!consumeIf('_')) {
+ Node *Ex = getDerived().parseExpr();
+ if (Ex == nullptr)
+ return nullptr;
+ Names.push_back(Ex);
+ }
+ NodeArray ExprList = popTrailingNodeArray(Exprs);
+ Node *Ty = getDerived().parseType();
+ if (Ty == nullptr)
+ return nullptr;
+ bool HaveInits = consumeIf("pi");
size_t InitsBegin = Names.size();
while (!consumeIf('E')) {
- Node *E = getDerived().parseBracedExpr();
+ if (!HaveInits)
+ return nullptr;
+ Node *Init = getDerived().parseExpr();
+ if (Init == nullptr)
+ return Init;
+ Names.push_back(Init);
+ }
+ NodeArray Inits = popTrailingNodeArray(InitsBegin);
+ return make<NewExpr>(ExprList, Ty, Inits, Global,
+ /*IsArray=*/Op->getFlag(), Op->getPrecedence());
+ }
+ case OperatorInfo::Del: {
+ // Delete
+ Node *Ex = getDerived().parseExpr();
+ if (Ex == nullptr)
+ return nullptr;
+ return make<DeleteExpr>(Ex, Global, /*IsArray=*/Op->getFlag(),
+ Op->getPrecedence());
+ }
+ case OperatorInfo::Call: {
+ // Function Call
+ Node *Callee = getDerived().parseExpr();
+ if (Callee == nullptr)
+ return nullptr;
+ size_t ExprsBegin = Names.size();
+ while (!consumeIf('E')) {
+ Node *E = getDerived().parseExpr();
if (E == nullptr)
return nullptr;
Names.push_back(E);
}
- return make<InitListExpr>(nullptr, popTrailingNodeArray(InitsBegin));
+ return make<CallExpr>(Callee, popTrailingNodeArray(ExprsBegin),
+ Op->getPrecedence());
}
- }
- return nullptr;
- case 'l':
- switch (First[1]) {
- case 'e':
- First += 2;
- return getDerived().parseBinaryExpr("<=");
- case 's':
- First += 2;
- return getDerived().parseBinaryExpr("<<");
- case 'S':
- First += 2;
- return getDerived().parseBinaryExpr("<<=");
- case 't':
- First += 2;
- return getDerived().parseBinaryExpr("<");
- }
- return nullptr;
- case 'm':
- switch (First[1]) {
- case 'i':
- First += 2;
- return getDerived().parseBinaryExpr("-");
- case 'I':
- First += 2;
- return getDerived().parseBinaryExpr("-=");
- case 'l':
- First += 2;
- return getDerived().parseBinaryExpr("*");
- case 'L':
- First += 2;
- return getDerived().parseBinaryExpr("*=");
- case 'm':
- First += 2;
- if (consumeIf('_'))
- return getDerived().parsePrefixExpr("--");
- Node *Ex = getDerived().parseExpr();
- if (Ex == nullptr)
+ case OperatorInfo::CCast: {
+ // C Cast: (type)expr
+ Node *Ty;
+ {
+ ScopedOverride<bool> SaveTemp(TryToParseTemplateArgs, false);
+ Ty = getDerived().parseType();
+ }
+ if (Ty == nullptr)
return nullptr;
- return make<PostfixExpr>(Ex, "--");
- }
- return nullptr;
- case 'n':
- switch (First[1]) {
- case 'a':
- case 'w':
- return getDerived().parseNewExpr();
- case 'e':
- First += 2;
- return getDerived().parseBinaryExpr("!=");
- case 'g':
- First += 2;
- return getDerived().parsePrefixExpr("-");
- case 't':
- First += 2;
- return getDerived().parsePrefixExpr("!");
- case 'x':
- First += 2;
- Node *Ex = getDerived().parseExpr();
- if (Ex == nullptr)
- return Ex;
- return make<EnclosingExpr>("noexcept (", Ex, ")");
- }
- return nullptr;
- case 'o':
- switch (First[1]) {
- case 'n':
- return getDerived().parseUnresolvedName();
- case 'o':
- First += 2;
- return getDerived().parseBinaryExpr("||");
- case 'r':
- First += 2;
- return getDerived().parseBinaryExpr("|");
- case 'R':
- First += 2;
- return getDerived().parseBinaryExpr("|=");
- }
- return nullptr;
- case 'p':
- switch (First[1]) {
- case 'm':
- First += 2;
- return getDerived().parseBinaryExpr("->*");
- case 'l':
- First += 2;
- return getDerived().parseBinaryExpr("+");
- case 'L':
- First += 2;
- return getDerived().parseBinaryExpr("+=");
- case 'p': {
- First += 2;
- if (consumeIf('_'))
- return getDerived().parsePrefixExpr("++");
- Node *Ex = getDerived().parseExpr();
- if (Ex == nullptr)
- return Ex;
- return make<PostfixExpr>(Ex, "++");
- }
- case 's':
- First += 2;
- return getDerived().parsePrefixExpr("+");
- case 't': {
- First += 2;
- Node *L = getDerived().parseExpr();
- if (L == nullptr)
+
+ size_t ExprsBegin = Names.size();
+ bool IsMany = consumeIf('_');
+ while (!consumeIf('E')) {
+ Node *E = getDerived().parseExpr();
+ if (E == nullptr)
+ return E;
+ Names.push_back(E);
+ if (!IsMany)
+ break;
+ }
+ NodeArray Exprs = popTrailingNodeArray(ExprsBegin);
+ if (!IsMany && Exprs.size() != 1)
return nullptr;
- Node *R = getDerived().parseExpr();
- if (R == nullptr)
- return nullptr;
- return make<MemberExpr>(L, "->", R);
+ return make<ConversionExpr>(Ty, Exprs, Op->getPrecedence());
}
- }
- return nullptr;
- case 'q':
- if (First[1] == 'u') {
- First += 2;
+ case OperatorInfo::Conditional: {
+ // Conditional operator: expr ? expr : expr
Node *Cond = getDerived().parseExpr();
if (Cond == nullptr)
return nullptr;
@@ -4791,169 +4685,158 @@ Node *AbstractManglingParser<Derived, Alloc>::parseExpr() {
Node *RHS = getDerived().parseExpr();
if (RHS == nullptr)
return nullptr;
- return make<ConditionalExpr>(Cond, LHS, RHS);
+ return make<ConditionalExpr>(Cond, LHS, RHS, Op->getPrecedence());
}
- return nullptr;
- case 'r':
- switch (First[1]) {
- case 'c': {
- First += 2;
- Node *T = getDerived().parseType();
- if (T == nullptr)
- return T;
- Node *Ex = getDerived().parseExpr();
- if (Ex == nullptr)
- return Ex;
- return make<CastExpr>("reinterpret_cast", T, Ex);
- }
- case 'm':
- First += 2;
- return getDerived().parseBinaryExpr("%");
- case 'M':
- First += 2;
- return getDerived().parseBinaryExpr("%=");
- case 's':
- First += 2;
- return getDerived().parseBinaryExpr(">>");
- case 'S':
- First += 2;
- return getDerived().parseBinaryExpr(">>=");
- }
- return nullptr;
- case 's':
- switch (First[1]) {
- case 'c': {
- First += 2;
- Node *T = getDerived().parseType();
- if (T == nullptr)
- return T;
- Node *Ex = getDerived().parseExpr();
- if (Ex == nullptr)
- return Ex;
- return make<CastExpr>("static_cast", T, Ex);
- }
- case 'p': {
- First += 2;
- Node *Child = getDerived().parseExpr();
- if (Child == nullptr)
- return nullptr;
- return make<ParameterPackExpansion>(Child);
- }
- case 'r':
- return getDerived().parseUnresolvedName();
- case 't': {
- First += 2;
+ case OperatorInfo::NamedCast: {
+ // Named cast operation, @<type>(expr)
Node *Ty = getDerived().parseType();
if (Ty == nullptr)
- return Ty;
- return make<EnclosingExpr>("sizeof (", Ty, ")");
- }
- case 'z': {
- First += 2;
+ return nullptr;
Node *Ex = getDerived().parseExpr();
if (Ex == nullptr)
- return Ex;
- return make<EnclosingExpr>("sizeof (", Ex, ")");
+ return nullptr;
+ return make<CastExpr>(Sym, Ty, Ex, Op->getPrecedence());
}
- case 'Z':
- First += 2;
- if (look() == 'T') {
- Node *R = getDerived().parseTemplateParam();
- if (R == nullptr)
- return nullptr;
- return make<SizeofParamPackExpr>(R);
- } else if (look() == 'f') {
- Node *FP = getDerived().parseFunctionParam();
- if (FP == nullptr)
- return nullptr;
- return make<EnclosingExpr>("sizeof... (", FP, ")");
- }
+ case OperatorInfo::OfIdOp: {
+ // [sizeof/alignof/typeid] ( <type>|<expr> )
+ Node *Arg =
+ Op->getFlag() ? getDerived().parseType() : getDerived().parseExpr();
+ if (!Arg)
+ return nullptr;
+ return make<EnclosingExpr>(Sym, Arg, Op->getPrecedence());
+ }
+ case OperatorInfo::NameOnly: {
+ // Not valid as an expression operand.
return nullptr;
- case 'P': {
- First += 2;
- size_t ArgsBegin = Names.size();
- while (!consumeIf('E')) {
- Node *Arg = getDerived().parseTemplateArg();
- if (Arg == nullptr)
- return nullptr;
- Names.push_back(Arg);
- }
- auto *Pack = make<NodeArrayNode>(popTrailingNodeArray(ArgsBegin));
- if (!Pack)
- return nullptr;
- return make<EnclosingExpr>("sizeof... (", Pack, ")");
}
}
+ DEMANGLE_UNREACHABLE;
+ }
+
+ if (numLeft() < 2)
return nullptr;
- case 't':
- switch (First[1]) {
- case 'e': {
- First += 2;
- Node *Ex = getDerived().parseExpr();
- if (Ex == nullptr)
- return Ex;
- return make<EnclosingExpr>("typeid (", Ex, ")");
- }
- case 'i': {
- First += 2;
- Node *Ty = getDerived().parseType();
- if (Ty == nullptr)
- return Ty;
- return make<EnclosingExpr>("typeid (", Ty, ")");
- }
- case 'l': {
- First += 2;
- Node *Ty = getDerived().parseType();
- if (Ty == nullptr)
+
+ if (look() == 'L')
+ return getDerived().parseExprPrimary();
+ if (look() == 'T')
+ return getDerived().parseTemplateParam();
+ if (look() == 'f') {
+ // Disambiguate a fold expression from a <function-param>.
+ if (look(1) == 'p' || (look(1) == 'L' && std::isdigit(look(2))))
+ return getDerived().parseFunctionParam();
+ return getDerived().parseFoldExpr();
+ }
+ if (consumeIf("il")) {
+ size_t InitsBegin = Names.size();
+ while (!consumeIf('E')) {
+ Node *E = getDerived().parseBracedExpr();
+ if (E == nullptr)
return nullptr;
- size_t InitsBegin = Names.size();
+ Names.push_back(E);
+ }
+ return make<InitListExpr>(nullptr, popTrailingNodeArray(InitsBegin));
+ }
+ if (consumeIf("mc"))
+ return parsePointerToMemberConversionExpr(Node::Prec::Unary);
+ if (consumeIf("nx")) {
+ Node *Ex = getDerived().parseExpr();
+ if (Ex == nullptr)
+ return Ex;
+ return make<EnclosingExpr>("noexcept ", Ex, Node::Prec::Unary);
+ }
+ if (consumeIf("so"))
+ return parseSubobjectExpr();
+ if (consumeIf("sp")) {
+ Node *Child = getDerived().parseExpr();
+ if (Child == nullptr)
+ return nullptr;
+ return make<ParameterPackExpansion>(Child);
+ }
+ if (consumeIf("sZ")) {
+ if (look() == 'T') {
+ Node *R = getDerived().parseTemplateParam();
+ if (R == nullptr)
+ return nullptr;
+ return make<SizeofParamPackExpr>(R);
+ }
+ Node *FP = getDerived().parseFunctionParam();
+ if (FP == nullptr)
+ return nullptr;
+ return make<EnclosingExpr>("sizeof... ", FP);
+ }
+ if (consumeIf("sP")) {
+ size_t ArgsBegin = Names.size();
+ while (!consumeIf('E')) {
+ Node *Arg = getDerived().parseTemplateArg();
+ if (Arg == nullptr)
+ return nullptr;
+ Names.push_back(Arg);
+ }
+ auto *Pack = make<NodeArrayNode>(popTrailingNodeArray(ArgsBegin));
+ if (!Pack)
+ return nullptr;
+ return make<EnclosingExpr>("sizeof... ", Pack);
+ }
+ if (consumeIf("tl")) {
+ Node *Ty = getDerived().parseType();
+ if (Ty == nullptr)
+ return nullptr;
+ size_t InitsBegin = Names.size();
+ while (!consumeIf('E')) {
+ Node *E = getDerived().parseBracedExpr();
+ if (E == nullptr)
+ return nullptr;
+ Names.push_back(E);
+ }
+ return make<InitListExpr>(Ty, popTrailingNodeArray(InitsBegin));
+ }
+ if (consumeIf("tr"))
+ return make<NameType>("throw");
+ if (consumeIf("tw")) {
+ Node *Ex = getDerived().parseExpr();
+ if (Ex == nullptr)
+ return nullptr;
+ return make<ThrowExpr>(Ex);
+ }
+ if (consumeIf('u')) {
+ Node *Name = getDerived().parseSourceName(/*NameState=*/nullptr);
+ if (!Name)
+ return nullptr;
+ // Special case legacy __uuidof mangling. The 't' and 'z' appear where the
+ // standard encoding expects a <template-arg>, and would be otherwise be
+ // interpreted as <type> node 'short' or 'ellipsis'. However, neither
+ // __uuidof(short) nor __uuidof(...) can actually appear, so there is no
+ // actual conflict here.
+ bool IsUUID = false;
+ Node *UUID = nullptr;
+ if (Name->getBaseName() == "__uuidof") {
+ if (consumeIf('t')) {
+ UUID = getDerived().parseType();
+ IsUUID = true;
+ } else if (consumeIf('z')) {
+ UUID = getDerived().parseExpr();
+ IsUUID = true;
+ }
+ }
+ size_t ExprsBegin = Names.size();
+ if (IsUUID) {
+ if (UUID == nullptr)
+ return nullptr;
+ Names.push_back(UUID);
+ } else {
while (!consumeIf('E')) {
- Node *E = getDerived().parseBracedExpr();
+ Node *E = getDerived().parseTemplateArg();
if (E == nullptr)
- return nullptr;
+ return E;
Names.push_back(E);
}
- return make<InitListExpr>(Ty, popTrailingNodeArray(InitsBegin));
}
- case 'r':
- First += 2;
- return make<NameType>("throw");
- case 'w': {
- First += 2;
- Node *Ex = getDerived().parseExpr();
- if (Ex == nullptr)
- return nullptr;
- return make<ThrowExpr>(Ex);
- }
- }
- return nullptr;
- case '1':
- case '2':
- case '3':
- case '4':
- case '5':
- case '6':
- case '7':
- case '8':
- case '9':
- return getDerived().parseUnresolvedName();
+ return make<CallExpr>(Name, popTrailingNodeArray(ExprsBegin),
+ Node::Prec::Postfix);
}
- if (consumeIf("u8__uuidoft")) {
- Node *Ty = getDerived().parseType();
- if (!Ty)
- return nullptr;
- return make<UUIDOfExpr>(Ty);
- }
-
- if (consumeIf("u8__uuidofz")) {
- Node *Ex = getDerived().parseExpr();
- if (!Ex)
- return nullptr;
- return make<UUIDOfExpr>(Ex);
- }
-
- return nullptr;
+ // Only unresolved names remain.
+ return getDerived().parseUnresolvedName(Global);
}
// <call-offset> ::= h <nv-offset> _
@@ -4986,19 +4869,32 @@ bool AbstractManglingParser<Alloc, Derived>::parseCallOffset() {
// # second call-offset is result adjustment
// ::= T <call-offset> <base encoding>
// # base is the nominal target function of thunk
-// ::= GV <object name> # Guard variable for one-time initialization
+// # Guard variable for one-time initialization
+// ::= GV <object name>
// # No <type>
// ::= TW <object name> # Thread-local wrapper
// ::= TH <object name> # Thread-local initialization
// ::= GR <object name> _ # First temporary
// ::= GR <object name> <seq-id> _ # Subsequent temporaries
-// extension ::= TC <first type> <number> _ <second type> # construction vtable for second-in-first
+// # construction vtable for second-in-first
+// extension ::= TC <first type> <number> _ <second type>
// extension ::= GR <object name> # reference temporary for object
+// extension ::= GI <module name> # module global initializer
template <typename Derived, typename Alloc>
Node *AbstractManglingParser<Derived, Alloc>::parseSpecialName() {
switch (look()) {
case 'T':
switch (look(1)) {
+ // TA <template-arg> # template parameter object
+ //
+ // Not yet in the spec: https://github.com/itanium-cxx-abi/cxx-abi/issues/63
+ case 'A': {
+ First += 2;
+ Node *Arg = getDerived().parseTemplateArg();
+ if (Arg == nullptr)
+ return nullptr;
+ return make<SpecialName>("template parameter object for ", Arg);
+ }
// TV <type> # virtual table
case 'V': {
First += 2;
@@ -5110,6 +5006,16 @@ Node *AbstractManglingParser<Derived, Alloc>::parseSpecialName() {
return nullptr;
return make<SpecialName>("reference temporary for ", Name);
}
+ // GI <module-name> v
+ case 'I': {
+ First += 2;
+ ModuleName *Module = nullptr;
+ if (getDerived().parseModuleNameOpt(Module))
+ return nullptr;
+ if (Module == nullptr)
+ return nullptr;
+ return make<SpecialName>("initializer for module ", Module);
+ }
}
}
return nullptr;
@@ -5120,6 +5026,26 @@ Node *AbstractManglingParser<Derived, Alloc>::parseSpecialName() {
// ::= <special-name>
template <typename Derived, typename Alloc>
Node *AbstractManglingParser<Derived, Alloc>::parseEncoding() {
+ // The template parameters of an encoding are unrelated to those of the
+ // enclosing context.
+ class SaveTemplateParams {
+ AbstractManglingParser *Parser;
+ decltype(TemplateParams) OldParams;
+ decltype(OuterTemplateParams) OldOuterParams;
+
+ public:
+ SaveTemplateParams(AbstractManglingParser *TheParser) : Parser(TheParser) {
+ OldParams = std::move(Parser->TemplateParams);
+ OldOuterParams = std::move(Parser->OuterTemplateParams);
+ Parser->TemplateParams.clear();
+ Parser->OuterTemplateParams.clear();
+ }
+ ~SaveTemplateParams() {
+ Parser->TemplateParams = std::move(OldParams);
+ Parser->OuterTemplateParams = std::move(OldOuterParams);
+ }
+ } SaveTemplateParams(this);
+
if (look() == 'G' || look() == 'T')
return getDerived().parseSpecialName();
@@ -5204,14 +5130,19 @@ template <>
struct FloatData<long double>
{
#if defined(__mips__) && defined(__mips_n64) || defined(__aarch64__) || \
- defined(__wasm__)
+ defined(__wasm__) || defined(__riscv) || defined(__loongarch__)
static const size_t mangled_size = 32;
#elif defined(__arm__) || defined(__mips__) || defined(__hexagon__)
static const size_t mangled_size = 16;
#else
static const size_t mangled_size = 20; // May need to be adjusted to 16 or 24 on other platforms
#endif
- static const size_t max_demangled_size = 40;
+ // `-0x1.ffffffffffffffffffffffffffffp+16383` + 'L' + '\0' == 42 bytes.
+ // 28 'f's * 4 bits == 112 bits, which is the number of mantissa bits.
+ // Negatives are one character longer than positives.
+ // `0x1.` and `p` are constant, and exponents `+16383` and `-16382` are the
+ // same length. 1 sign bit, 112 mantissa bits, and 15 exponent bits == 128.
+ static const size_t max_demangled_size = 42;
static constexpr const char *spec = "%LaL";
};
@@ -5221,7 +5152,7 @@ Node *AbstractManglingParser<Alloc, Derived>::parseFloatingLiteral() {
const size_t N = FloatData<Float>::mangled_size;
if (numLeft() <= N)
return nullptr;
- StringView Data(First, First + N);
+ std::string_view Data(First, N);
for (char C : Data)
if (!std::isxdigit(C))
return nullptr;
@@ -5264,43 +5195,41 @@ bool AbstractManglingParser<Alloc, Derived>::parseSeqId(size_t *Out) {
// <substitution> ::= Si # ::std::basic_istream<char, std::char_traits<char> >
// <substitution> ::= So # ::std::basic_ostream<char, std::char_traits<char> >
// <substitution> ::= Sd # ::std::basic_iostream<char, std::char_traits<char> >
+// The St case is handled specially in parseNestedName.
template <typename Derived, typename Alloc>
Node *AbstractManglingParser<Derived, Alloc>::parseSubstitution() {
if (!consumeIf('S'))
return nullptr;
- if (std::islower(look())) {
- Node *SpecialSub;
+ if (look() >= 'a' && look() <= 'z') {
+ SpecialSubKind Kind;
switch (look()) {
case 'a':
- ++First;
- SpecialSub = make<SpecialSubstitution>(SpecialSubKind::allocator);
+ Kind = SpecialSubKind::allocator;
break;
case 'b':
- ++First;
- SpecialSub = make<SpecialSubstitution>(SpecialSubKind::basic_string);
- break;
- case 's':
- ++First;
- SpecialSub = make<SpecialSubstitution>(SpecialSubKind::string);
- break;
- case 'i':
- ++First;
- SpecialSub = make<SpecialSubstitution>(SpecialSubKind::istream);
- break;
- case 'o':
- ++First;
- SpecialSub = make<SpecialSubstitution>(SpecialSubKind::ostream);
+ Kind = SpecialSubKind::basic_string;
break;
case 'd':
- ++First;
- SpecialSub = make<SpecialSubstitution>(SpecialSubKind::iostream);
+ Kind = SpecialSubKind::iostream;
+ break;
+ case 'i':
+ Kind = SpecialSubKind::istream;
+ break;
+ case 'o':
+ Kind = SpecialSubKind::ostream;
+ break;
+ case 's':
+ Kind = SpecialSubKind::string;
break;
default:
return nullptr;
}
+ ++First;
+ auto *SpecialSub = make<SpecialSubstitution>(Kind);
if (!SpecialSub)
return nullptr;
+
// Itanium C++ ABI 5.1.2: If a name that would use a built-in <substitution>
// has ABI tags, the tags are appended to the substitution; the result is a
// substitutable component.
@@ -5543,7 +5472,8 @@ Node *AbstractManglingParser<Derived, Alloc>::parse() {
if (Encoding == nullptr)
return nullptr;
if (look() == '.') {
- Encoding = make<DotSuffix>(Encoding, StringView(First, Last));
+ Encoding =
+ make<DotSuffix>(Encoding, std::string_view(First, Last - First));
First = Last;
}
if (numLeft() != 0)
diff --git a/externals/demangle/llvm/Demangle/ItaniumNodes.def b/externals/demangle/llvm/Demangle/ItaniumNodes.def
new file mode 100644
index 000000000..5985769ef
--- /dev/null
+++ b/externals/demangle/llvm/Demangle/ItaniumNodes.def
@@ -0,0 +1,96 @@
+//===--- ItaniumNodes.def ------------*- mode:c++;eval:(read-only-mode) -*-===//
+// Do not edit! See README.txt.
+// 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
+//
+//===----------------------------------------------------------------------===//
+//
+// Define the demangler's node names
+
+#ifndef NODE
+#error Define NODE to handle nodes
+#endif
+
+NODE(NodeArrayNode)
+NODE(DotSuffix)
+NODE(VendorExtQualType)
+NODE(QualType)
+NODE(ConversionOperatorType)
+NODE(PostfixQualifiedType)
+NODE(ElaboratedTypeSpefType)
+NODE(NameType)
+NODE(AbiTagAttr)
+NODE(EnableIfAttr)
+NODE(ObjCProtoName)
+NODE(PointerType)
+NODE(ReferenceType)
+NODE(PointerToMemberType)
+NODE(ArrayType)
+NODE(FunctionType)
+NODE(NoexceptSpec)
+NODE(DynamicExceptionSpec)
+NODE(FunctionEncoding)
+NODE(LiteralOperator)
+NODE(SpecialName)
+NODE(CtorVtableSpecialName)
+NODE(QualifiedName)
+NODE(NestedName)
+NODE(LocalName)
+NODE(ModuleName)
+NODE(ModuleEntity)
+NODE(VectorType)
+NODE(PixelVectorType)
+NODE(BinaryFPType)
+NODE(BitIntType)
+NODE(SyntheticTemplateParamName)
+NODE(TypeTemplateParamDecl)
+NODE(NonTypeTemplateParamDecl)
+NODE(TemplateTemplateParamDecl)
+NODE(TemplateParamPackDecl)
+NODE(ParameterPack)
+NODE(TemplateArgumentPack)
+NODE(ParameterPackExpansion)
+NODE(TemplateArgs)
+NODE(ForwardTemplateReference)
+NODE(NameWithTemplateArgs)
+NODE(GlobalQualifiedName)
+NODE(ExpandedSpecialSubstitution)
+NODE(SpecialSubstitution)
+NODE(CtorDtorName)
+NODE(DtorName)
+NODE(UnnamedTypeName)
+NODE(ClosureTypeName)
+NODE(StructuredBindingName)
+NODE(BinaryExpr)
+NODE(ArraySubscriptExpr)
+NODE(PostfixExpr)
+NODE(ConditionalExpr)
+NODE(MemberExpr)
+NODE(SubobjectExpr)
+NODE(EnclosingExpr)
+NODE(CastExpr)
+NODE(SizeofParamPackExpr)
+NODE(CallExpr)
+NODE(NewExpr)
+NODE(DeleteExpr)
+NODE(PrefixExpr)
+NODE(FunctionParam)
+NODE(ConversionExpr)
+NODE(PointerToMemberConversionExpr)
+NODE(InitListExpr)
+NODE(FoldExpr)
+NODE(ThrowExpr)
+NODE(BoolExpr)
+NODE(StringLiteral)
+NODE(LambdaExpr)
+NODE(EnumLiteral)
+NODE(IntegerLiteral)
+NODE(FloatLiteral)
+NODE(DoubleLiteral)
+NODE(LongDoubleLiteral)
+NODE(BracedExpr)
+NODE(BracedRangeExpr)
+
+#undef NODE
diff --git a/externals/demangle/llvm/Demangle/StringView.h b/externals/demangle/llvm/Demangle/StringView.h
index 44d2b18a3..76b215252 100644
--- a/externals/demangle/llvm/Demangle/StringView.h
+++ b/externals/demangle/llvm/Demangle/StringView.h
@@ -1,5 +1,5 @@
-//===--- StringView.h -------------------------------------------*- C++ -*-===//
-//
+//===--- StringView.h ----------------*- mode:c++;eval:(read-only-mode) -*-===//
+// Do not edit! See README.txt.
// 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
@@ -8,6 +8,9 @@
//===----------------------------------------------------------------------===//
//
// FIXME: Use std::string_view instead when we support C++17.
+// There are two copies of this file in the source tree. The one under
+// libcxxabi is the original and the one under llvm is the copy. Use
+// cp-to-llvm.sh to update the copy. See README.txt for more details.
//
//===----------------------------------------------------------------------===//
@@ -15,7 +18,6 @@
#define DEMANGLE_STRINGVIEW_H
#include "DemangleConfig.h"
-#include <algorithm>
#include <cassert>
#include <cstring>
@@ -37,29 +39,23 @@ public:
StringView(const char *Str) : First(Str), Last(Str + std::strlen(Str)) {}
StringView() : First(nullptr), Last(nullptr) {}
- StringView substr(size_t From) const {
- return StringView(begin() + From, size() - From);
+ StringView substr(size_t Pos, size_t Len = npos) const {
+ assert(Pos <= size());
+ if (Len > size() - Pos)
+ Len = size() - Pos;
+ return StringView(begin() + Pos, Len);
}
size_t find(char C, size_t From = 0) const {
- size_t FindBegin = std::min(From, size());
// Avoid calling memchr with nullptr.
- if (FindBegin < size()) {
+ if (From < size()) {
// Just forward to memchr, which is faster than a hand-rolled loop.
- if (const void *P = ::memchr(First + FindBegin, C, size() - FindBegin))
+ if (const void *P = ::memchr(First + From, C, size() - From))
return size_t(static_cast<const char *>(P) - First);
}
return npos;
}
- StringView substr(size_t From, size_t To) const {
- if (To >= size())
- To = size() - 1;
- if (From >= size())
- From = size() - 1;
- return StringView(First + From, First + To);
- }
-
StringView dropFront(size_t N = 1) const {
if (N >= size())
N = size();
@@ -106,7 +102,7 @@ public:
bool startsWith(StringView Str) const {
if (Str.size() > size())
return false;
- return std::equal(Str.begin(), Str.end(), begin());
+ return std::strncmp(Str.begin(), begin(), Str.size()) == 0;
}
const char &operator[](size_t Idx) const { return *(begin() + Idx); }
@@ -119,7 +115,7 @@ public:
inline bool operator==(const StringView &LHS, const StringView &RHS) {
return LHS.size() == RHS.size() &&
- std::equal(LHS.begin(), LHS.end(), RHS.begin());
+ std::strncmp(LHS.begin(), RHS.begin(), LHS.size()) == 0;
}
DEMANGLE_NAMESPACE_END
diff --git a/externals/demangle/llvm/Demangle/StringViewExtras.h b/externals/demangle/llvm/Demangle/StringViewExtras.h
new file mode 100644
index 000000000..83685c304
--- /dev/null
+++ b/externals/demangle/llvm/Demangle/StringViewExtras.h
@@ -0,0 +1,39 @@
+//===--- StringViewExtras.h ----------*- mode:c++;eval:(read-only-mode) -*-===//
+// Do not edit! See README.txt.
+// 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
+//
+//===----------------------------------------------------------------------===//
+//
+// There are two copies of this file in the source tree. The one under
+// libcxxabi is the original and the one under llvm is the copy. Use
+// cp-to-llvm.sh to update the copy. See README.txt for more details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef DEMANGLE_STRINGVIEW_H
+#define DEMANGLE_STRINGVIEW_H
+
+#include "DemangleConfig.h"
+
+#include <string_view>
+
+DEMANGLE_NAMESPACE_BEGIN
+
+inline bool starts_with(std::string_view self, char C) noexcept {
+ return !self.empty() && *self.begin() == C;
+}
+
+inline bool starts_with(std::string_view haystack,
+ std::string_view needle) noexcept {
+ if (needle.size() > haystack.size())
+ return false;
+ haystack.remove_suffix(haystack.size() - needle.size());
+ return haystack == needle;
+}
+
+DEMANGLE_NAMESPACE_END
+
+#endif
diff --git a/externals/demangle/llvm/Demangle/Utility.h b/externals/demangle/llvm/Demangle/Utility.h
index 50d05c6b1..30dfbfc8d 100644
--- a/externals/demangle/llvm/Demangle/Utility.h
+++ b/externals/demangle/llvm/Demangle/Utility.h
@@ -1,5 +1,5 @@
-//===--- Utility.h ----------------------------------------------*- C++ -*-===//
-//
+//===--- Utility.h -------------------*- mode:c++;eval:(read-only-mode) -*-===//
+// Do not edit! See README.txt.
// 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
@@ -7,70 +7,83 @@
//
//===----------------------------------------------------------------------===//
//
-// Provide some utility classes for use in the demangler(s).
+// Provide some utility classes for use in the demangler.
+// There are two copies of this file in the source tree. The one in libcxxabi
+// is the original and the one in llvm is the copy. Use cp-to-llvm.sh to update
+// the copy. See README.txt for more details.
//
//===----------------------------------------------------------------------===//
#ifndef DEMANGLE_UTILITY_H
#define DEMANGLE_UTILITY_H
-#include "StringView.h"
+#include "DemangleConfig.h"
+
+#include <array>
+#include <cassert>
#include <cstdint>
#include <cstdlib>
#include <cstring>
-#include <iterator>
+#include <exception>
#include <limits>
+#include <string_view>
DEMANGLE_NAMESPACE_BEGIN
// Stream that AST nodes write their string representation into after the AST
// has been parsed.
-class OutputStream {
- char *Buffer;
- size_t CurrentPosition;
- size_t BufferCapacity;
+class OutputBuffer {
+ char *Buffer = nullptr;
+ size_t CurrentPosition = 0;
+ size_t BufferCapacity = 0;
- // Ensure there is at least n more positions in buffer.
+ // Ensure there are at least N more positions in the buffer.
void grow(size_t N) {
- if (N + CurrentPosition >= BufferCapacity) {
+ size_t Need = N + CurrentPosition;
+ if (Need > BufferCapacity) {
+ // Reduce the number of reallocations, with a bit of hysteresis. The
+ // number here is chosen so the first allocation will more-than-likely not
+ // allocate more than 1K.
+ Need += 1024 - 32;
BufferCapacity *= 2;
- if (BufferCapacity < N + CurrentPosition)
- BufferCapacity = N + CurrentPosition;
+ if (BufferCapacity < Need)
+ BufferCapacity = Need;
Buffer = static_cast<char *>(std::realloc(Buffer, BufferCapacity));
if (Buffer == nullptr)
std::terminate();
}
}
- void writeUnsigned(uint64_t N, bool isNeg = false) {
- // Handle special case...
- if (N == 0) {
- *this << '0';
- return;
- }
+ OutputBuffer &writeUnsigned(uint64_t N, bool isNeg = false) {
+ std::array<char, 21> Temp;
+ char *TempPtr = Temp.data() + Temp.size();
- char Temp[21];
- char *TempPtr = std::end(Temp);
-
- while (N) {
- *--TempPtr = '0' + char(N % 10);
+ // Output at least one character.
+ do {
+ *--TempPtr = char('0' + N % 10);
N /= 10;
- }
+ } while (N);
- // Add negative sign...
+ // Add negative sign.
if (isNeg)
*--TempPtr = '-';
- this->operator<<(StringView(TempPtr, std::end(Temp)));
+
+ return operator+=(
+ std::string_view(TempPtr, Temp.data() + Temp.size() - TempPtr));
}
public:
- OutputStream(char *StartBuf, size_t Size)
- : Buffer(StartBuf), CurrentPosition(0), BufferCapacity(Size) {}
- OutputStream() = default;
- void reset(char *Buffer_, size_t BufferCapacity_) {
- CurrentPosition = 0;
- Buffer = Buffer_;
- BufferCapacity = BufferCapacity_;
+ OutputBuffer(char *StartBuf, size_t Size)
+ : Buffer(StartBuf), BufferCapacity(Size) {}
+ OutputBuffer(char *StartBuf, size_t *SizePtr)
+ : OutputBuffer(StartBuf, StartBuf ? *SizePtr : 0) {}
+ OutputBuffer() = default;
+ // Non-copyable
+ OutputBuffer(const OutputBuffer &) = delete;
+ OutputBuffer &operator=(const OutputBuffer &) = delete;
+
+ operator std::string_view() const {
+ return std::string_view(Buffer, CurrentPosition);
}
/// If a ParameterPackExpansion (or similar type) is encountered, the offset
@@ -78,115 +91,116 @@ public:
unsigned CurrentPackIndex = std::numeric_limits<unsigned>::max();
unsigned CurrentPackMax = std::numeric_limits<unsigned>::max();
- OutputStream &operator+=(StringView R) {
- size_t Size = R.size();
- if (Size == 0)
- return *this;
- grow(Size);
- std::memmove(Buffer + CurrentPosition, R.begin(), Size);
- CurrentPosition += Size;
+ /// When zero, we're printing template args and '>' needs to be parenthesized.
+ /// Use a counter so we can simply increment inside parentheses.
+ unsigned GtIsGt = 1;
+
+ bool isGtInsideTemplateArgs() const { return GtIsGt == 0; }
+
+ void printOpen(char Open = '(') {
+ GtIsGt++;
+ *this += Open;
+ }
+ void printClose(char Close = ')') {
+ GtIsGt--;
+ *this += Close;
+ }
+
+ OutputBuffer &operator+=(std::string_view R) {
+ if (size_t Size = R.size()) {
+ grow(Size);
+ std::memcpy(Buffer + CurrentPosition, &*R.begin(), Size);
+ CurrentPosition += Size;
+ }
return *this;
}
- OutputStream &operator+=(char C) {
+ OutputBuffer &operator+=(char C) {
grow(1);
Buffer[CurrentPosition++] = C;
return *this;
}
- OutputStream &operator<<(StringView R) { return (*this += R); }
+ OutputBuffer &prepend(std::string_view R) {
+ size_t Size = R.size();
- OutputStream &operator<<(char C) { return (*this += C); }
+ grow(Size);
+ std::memmove(Buffer + Size, Buffer, CurrentPosition);
+ std::memcpy(Buffer, &*R.begin(), Size);
+ CurrentPosition += Size;
- OutputStream &operator<<(long long N) {
- if (N < 0)
- writeUnsigned(static_cast<unsigned long long>(-N), true);
- else
- writeUnsigned(static_cast<unsigned long long>(N));
return *this;
}
- OutputStream &operator<<(unsigned long long N) {
- writeUnsigned(N, false);
- return *this;
+ OutputBuffer &operator<<(std::string_view R) { return (*this += R); }
+
+ OutputBuffer &operator<<(char C) { return (*this += C); }
+
+ OutputBuffer &operator<<(long long N) {
+ return writeUnsigned(static_cast<unsigned long long>(std::abs(N)), N < 0);
}
- OutputStream &operator<<(long N) {
+ OutputBuffer &operator<<(unsigned long long N) {
+ return writeUnsigned(N, false);
+ }
+
+ OutputBuffer &operator<<(long N) {
return this->operator<<(static_cast<long long>(N));
}
- OutputStream &operator<<(unsigned long N) {
+ OutputBuffer &operator<<(unsigned long N) {
return this->operator<<(static_cast<unsigned long long>(N));
}
- OutputStream &operator<<(int N) {
+ OutputBuffer &operator<<(int N) {
return this->operator<<(static_cast<long long>(N));
}
- OutputStream &operator<<(unsigned int N) {
+ OutputBuffer &operator<<(unsigned int N) {
return this->operator<<(static_cast<unsigned long long>(N));
}
+ void insert(size_t Pos, const char *S, size_t N) {
+ assert(Pos <= CurrentPosition);
+ if (N == 0)
+ return;
+ grow(N);
+ std::memmove(Buffer + Pos + N, Buffer + Pos, CurrentPosition - Pos);
+ std::memcpy(Buffer + Pos, S, N);
+ CurrentPosition += N;
+ }
+
size_t getCurrentPosition() const { return CurrentPosition; }
void setCurrentPosition(size_t NewPos) { CurrentPosition = NewPos; }
char back() const {
- return CurrentPosition ? Buffer[CurrentPosition - 1] : '\0';
+ assert(CurrentPosition);
+ return Buffer[CurrentPosition - 1];
}
bool empty() const { return CurrentPosition == 0; }
char *getBuffer() { return Buffer; }
char *getBufferEnd() { return Buffer + CurrentPosition - 1; }
- size_t getBufferCapacity() { return BufferCapacity; }
+ size_t getBufferCapacity() const { return BufferCapacity; }
};
-template <class T> class SwapAndRestore {
- T &Restore;
- T OriginalValue;
- bool ShouldRestore = true;
+template <class T> class ScopedOverride {
+ T &Loc;
+ T Original;
public:
- SwapAndRestore(T &Restore_) : SwapAndRestore(Restore_, Restore_) {}
+ ScopedOverride(T &Loc_) : ScopedOverride(Loc_, Loc_) {}
- SwapAndRestore(T &Restore_, T NewVal)
- : Restore(Restore_), OriginalValue(Restore) {
- Restore = std::move(NewVal);
- }
- ~SwapAndRestore() {
- if (ShouldRestore)
- Restore = std::move(OriginalValue);
+ ScopedOverride(T &Loc_, T NewVal) : Loc(Loc_), Original(Loc_) {
+ Loc_ = std::move(NewVal);
}
+ ~ScopedOverride() { Loc = std::move(Original); }
- void shouldRestore(bool ShouldRestore_) { ShouldRestore = ShouldRestore_; }
-
- void restoreNow(bool Force) {
- if (!Force && !ShouldRestore)
- return;
-
- Restore = std::move(OriginalValue);
- ShouldRestore = false;
- }
-
- SwapAndRestore(const SwapAndRestore &) = delete;
- SwapAndRestore &operator=(const SwapAndRestore &) = delete;
+ ScopedOverride(const ScopedOverride &) = delete;
+ ScopedOverride &operator=(const ScopedOverride &) = delete;
};
-inline bool initializeOutputStream(char *Buf, size_t *N, OutputStream &S,
- size_t InitSize) {
- size_t BufferSize;
- if (Buf == nullptr) {
- Buf = static_cast<char *>(std::malloc(InitSize));
- if (Buf == nullptr)
- return false;
- BufferSize = InitSize;
- } else
- BufferSize = *N;
-
- S.reset(Buf, BufferSize);
- return true;
-}
-
DEMANGLE_NAMESPACE_END
#endif