Make a home for exception specs in the AST. Now Sema can hook them up.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@70506 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/ASTContext.cpp b/lib/AST/ASTContext.cpp
index b88149a..0494de1 100644
--- a/lib/AST/ASTContext.cpp
+++ b/lib/AST/ASTContext.cpp
@@ -1321,12 +1321,15 @@
/// list. isVariadic indicates whether the argument list includes '...'.
QualType ASTContext::getFunctionType(QualType ResultTy,const QualType *ArgArray,
unsigned NumArgs, bool isVariadic,
- unsigned TypeQuals) {
+ unsigned TypeQuals, bool hasExceptionSpec,
+ bool hasAnyExceptionSpec, unsigned NumExs,
+ const QualType *ExArray) {
// Unique functions, to guarantee there is only one function of a particular
// structure.
llvm::FoldingSetNodeID ID;
FunctionProtoType::Profile(ID, ResultTy, ArgArray, NumArgs, isVariadic,
- TypeQuals);
+ TypeQuals, hasExceptionSpec, hasAnyExceptionSpec,
+ NumExs, ExArray);
void *InsertPos = 0;
if (FunctionProtoType *FTP =
@@ -1346,24 +1349,32 @@
CanonicalArgs.reserve(NumArgs);
for (unsigned i = 0; i != NumArgs; ++i)
CanonicalArgs.push_back(getCanonicalType(ArgArray[i]));
-
+ llvm::SmallVector<QualType, 2> CanonicalExs;
+ CanonicalExs.reserve(NumExs);
+ for (unsigned i = 0; i != NumExs; ++i)
+ CanonicalExs.push_back(getCanonicalType(ExArray[i]));
+
Canonical = getFunctionType(getCanonicalType(ResultTy),
&CanonicalArgs[0], NumArgs,
- isVariadic, TypeQuals);
-
+ isVariadic, TypeQuals, hasExceptionSpec,
+ hasAnyExceptionSpec, NumExs, &CanonicalExs[0]);
+
// Get the new insert position for the node we care about.
FunctionProtoType *NewIP =
FunctionProtoTypes.FindNodeOrInsertPos(ID, InsertPos);
assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP;
}
-
+
// FunctionProtoType objects are allocated with extra bytes after them
- // for a variable size array (for parameter types) at the end of them.
+ // for two variable size arrays (for parameter and exception types) at the
+ // end of them.
FunctionProtoType *FTP =
- (FunctionProtoType*)Allocate(sizeof(FunctionProtoType) +
- NumArgs*sizeof(QualType), 8);
+ (FunctionProtoType*)Allocate(sizeof(FunctionProtoType) +
+ NumArgs*sizeof(QualType) +
+ NumExs*sizeof(QualType), 8);
new (FTP) FunctionProtoType(ResultTy, ArgArray, NumArgs, isVariadic,
- TypeQuals, Canonical);
+ TypeQuals, hasExceptionSpec, hasAnyExceptionSpec,
+ ExArray, NumExs, Canonical);
Types.push_back(FTP);
FunctionProtoTypes.InsertNode(FTP, InsertPos);
return QualType(FTP, 0);
@@ -2930,6 +2941,8 @@
allRTypes = false;
if (lproto && rproto) { // two C99 style function prototypes
+ assert(!lproto->hasExceptionSpec() && !rproto->hasExceptionSpec() &&
+ "C++ shouldn't be here");
unsigned lproto_nargs = lproto->getNumArgs();
unsigned rproto_nargs = rproto->getNumArgs();
@@ -2968,6 +2981,7 @@
const FunctionProtoType *proto = lproto ? lproto : rproto;
if (proto) {
+ assert(!proto->hasExceptionSpec() && "C++ shouldn't be here");
if (proto->isVariadic()) return QualType();
// Check that the types are compatible with the types that
// would result from default argument promotions (C99 6.7.5.3p15).
diff --git a/lib/AST/Type.cpp b/lib/AST/Type.cpp
index d6cf4bd..9308288 100644
--- a/lib/AST/Type.cpp
+++ b/lib/AST/Type.cpp
@@ -920,17 +920,26 @@
void FunctionProtoType::Profile(llvm::FoldingSetNodeID &ID, QualType Result,
arg_type_iterator ArgTys,
unsigned NumArgs, bool isVariadic,
- unsigned TypeQuals) {
+ unsigned TypeQuals, bool hasExceptionSpec,
+ bool anyExceptionSpec, unsigned NumExceptions,
+ exception_iterator Exs) {
ID.AddPointer(Result.getAsOpaquePtr());
for (unsigned i = 0; i != NumArgs; ++i)
ID.AddPointer(ArgTys[i].getAsOpaquePtr());
ID.AddInteger(isVariadic);
ID.AddInteger(TypeQuals);
+ ID.AddInteger(hasExceptionSpec);
+ if (hasExceptionSpec) {
+ ID.AddInteger(anyExceptionSpec);
+ for(unsigned i = 0; i != NumExceptions; ++i)
+ ID.AddPointer(Exs[i].getAsOpaquePtr());
+ }
}
void FunctionProtoType::Profile(llvm::FoldingSetNodeID &ID) {
Profile(ID, getResultType(), arg_type_begin(), NumArgs, isVariadic(),
- getTypeQuals());
+ getTypeQuals(), hasExceptionSpec(), hasAnyExceptionSpec(),
+ getNumExceptions(), exception_begin());
}
void ObjCQualifiedInterfaceType::Profile(llvm::FoldingSetNodeID &ID,
diff --git a/lib/Frontend/PCHReader.cpp b/lib/Frontend/PCHReader.cpp
index 9323620..949d02a 100644
--- a/lib/Frontend/PCHReader.cpp
+++ b/lib/Frontend/PCHReader.cpp
@@ -1584,8 +1584,16 @@
ParamTypes.push_back(GetType(Record[Idx++]));
bool isVariadic = Record[Idx++];
unsigned Quals = Record[Idx++];
+ bool hasExceptionSpec = Record[Idx++];
+ bool hasAnyExceptionSpec = Record[Idx++];
+ unsigned NumExceptions = Record[Idx++];
+ llvm::SmallVector<QualType, 2> Exceptions;
+ for (unsigned I = 0; I != NumExceptions; ++I)
+ Exceptions.push_back(GetType(Record[Idx++]));
return Context->getFunctionType(ResultType, &ParamTypes[0], NumParams,
- isVariadic, Quals);
+ isVariadic, Quals, hasExceptionSpec,
+ hasAnyExceptionSpec, NumExceptions,
+ &Exceptions[0]);
}
case pch::TYPE_TYPEDEF:
diff --git a/lib/Frontend/PCHWriter.cpp b/lib/Frontend/PCHWriter.cpp
index b28d0c8..2db93c3 100644
--- a/lib/Frontend/PCHWriter.cpp
+++ b/lib/Frontend/PCHWriter.cpp
@@ -161,6 +161,11 @@
Writer.AddTypeRef(T->getArgType(I), Record);
Record.push_back(T->isVariadic());
Record.push_back(T->getTypeQuals());
+ Record.push_back(T->hasExceptionSpec());
+ Record.push_back(T->hasAnyExceptionSpec());
+ Record.push_back(T->getNumExceptions());
+ for (unsigned I = 0, N = T->getNumExceptions(); I != N; ++I)
+ Writer.AddTypeRef(T->getExceptionType(I), Record);
Code = pch::TYPE_FUNCTION_PROTO;
}
diff --git a/lib/Sema/SemaDecl.cpp b/lib/Sema/SemaDecl.cpp
index 9e2bd44..2381c62 100644
--- a/lib/Sema/SemaDecl.cpp
+++ b/lib/Sema/SemaDecl.cpp
@@ -714,6 +714,7 @@
(OldProto = dyn_cast<FunctionProtoType>(OldFuncType))) {
// The old declaration provided a function prototype, but the
// new declaration does not. Merge in the prototype.
+ assert(!OldProto->hasExceptionSpec() && "Exception spec in C");
llvm::SmallVector<QualType, 16> ParamTypes(OldProto->arg_type_begin(),
OldProto->arg_type_end());
NewQType = Context.getFunctionType(NewFuncType->getResultType(),
diff --git a/lib/Sema/SemaDeclCXX.cpp b/lib/Sema/SemaDeclCXX.cpp
index 71d2f80..e9b7fb0 100644
--- a/lib/Sema/SemaDeclCXX.cpp
+++ b/lib/Sema/SemaDeclCXX.cpp
@@ -995,6 +995,9 @@
QualType ClassType = Context.getTypeDeclType(ClassDecl);
ClassType = Context.getCanonicalType(ClassType);
+ // FIXME: Implicit declarations have exception specifications, which are
+ // the union of the specifications of the implicitly called functions.
+
if (!ClassDecl->hasUserDeclaredConstructor()) {
// C++ [class.ctor]p5:
// A default constructor for a class X is a constructor of class X