Propagate the new exception information to FunctionProtoType.

Change the interface to expose the new information and deal with the enormous fallout.
Introduce the new ExceptionSpecificationType value EST_DynamicNone to more easily deal with empty throw specifications.
Update the tests for noexcept and fix the various bugs uncovered, such as lack of tentative parsing support.

llvm-svn: 127537

1 files changed, 8 insertions, 5 deletions

diff --git a/clang/lib/Serialization/ASTWriter.cpp b/clang/lib/Serialization/ASTWriter.cpp
index 5f830976a8c..877650f9de3 100644
--- a/clang/lib/Serialization/ASTWriter.cpp
+++ b/clang/lib/Serialization/ASTWriter.cpp
@@ -178,11 +178,14 @@ void ASTTypeWriter::VisitFunctionProtoType(const FunctionProtoType *T) {
   Record.push_back(T->isVariadic());
   Record.push_back(T->getTypeQuals());
   Record.push_back(static_cast<unsigned>(T->getRefQualifier()));
-  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);
+  Record.push_back(T->getExceptionSpecType());
+  if (T->getExceptionSpecType() == EST_Dynamic) {
+    Record.push_back(T->getNumExceptions());
+    for (unsigned I = 0, N = T->getNumExceptions(); I != N; ++I)
+      Writer.AddTypeRef(T->getExceptionType(I), Record);
+  } else if (T->getExceptionSpecType() == EST_ComputedNoexcept) {
+    Writer.AddStmt(T->getNoexceptExpr());
+  }
   Code = TYPE_FUNCTION_PROTO;
 }