If a ParmVarDecl's default argument is a CXXExprWithTemporaries, return the underlying expr instead. Add getNumDefaultArgTemporaries and getDefaultArgTemporary which returns the temporaries a default arg creates.
llvm-svn: 91439
diff --git a/clang/lib/AST/Decl.cpp b/clang/lib/AST/Decl.cpp
index 4d0d422..c0f4b77e 100644
--- a/clang/lib/AST/Decl.cpp
+++ b/clang/lib/AST/Decl.cpp
@@ -19,6 +19,7 @@
#include "clang/AST/TypeLoc.h"
#include "clang/AST/Stmt.h"
#include "clang/AST/Expr.h"
+#include "clang/AST/ExprCXX.h"
#include "clang/AST/PrettyPrinter.h"
#include "clang/Basic/Builtins.h"
#include "clang/Basic/IdentifierTable.h"
@@ -91,6 +92,34 @@
return new (C) ParmVarDecl(ParmVar, DC, L, Id, T, TInfo, S, DefArg);
}
+Expr *ParmVarDecl::getDefaultArg() {
+ assert(!hasUnparsedDefaultArg() && "Default argument is not yet parsed!");
+ assert(!hasUninstantiatedDefaultArg() &&
+ "Default argument is not yet instantiated!");
+
+ Expr *Arg = getInit();
+ if (CXXExprWithTemporaries *E = dyn_cast_or_null<CXXExprWithTemporaries>(Arg))
+ return E->getSubExpr();
+
+ return Arg;
+}
+
+unsigned ParmVarDecl::getNumDefaultArgTemporaries() const {
+ if (const CXXExprWithTemporaries *E =
+ dyn_cast<CXXExprWithTemporaries>(getInit()))
+ return E->getNumTemporaries();
+
+ return 0;
+}
+
+CXXTemporary *ParmVarDecl::getDefaultArgTemporary(unsigned i) {
+ assert(getNumDefaultArgTemporaries() &&
+ "Default arguments does not have any temporaries!");
+
+ CXXExprWithTemporaries *E = cast<CXXExprWithTemporaries>(getInit());
+ return E->getTemporary(i);
+}
+
SourceRange ParmVarDecl::getDefaultArgRange() const {
if (const Expr *E = getInit())
return E->getSourceRange();