Add Decl getter/setters for uninstantiated default arguments for function parameters.
llvm-svn: 79965
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@ -285,11 +285,16 @@ protected:
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/// \brief Placeholder type used in Init to denote an unparsed C++ default
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/// argument.
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struct UnparsedDefaultArgument;
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/// \brief Placeholder type used in Init to denote an uninstantiated C++
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/// default argument.
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struct UninstantiatedDefaultArgument;
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/// \brief The initializer for this variable or, for a ParmVarDecl, the
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/// C++ default argument.
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mutable llvm::PointerUnion3<Stmt *, EvaluatedStmt *, UnparsedDefaultArgument*>
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Init;
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mutable llvm::PointerUnion4<Stmt *, EvaluatedStmt *,
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UnparsedDefaultArgument *,
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UninstantiatedDefaultArgument *> Init;
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private:
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// FIXME: This can be packed into the bitfields in Decl.
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@ -600,20 +605,32 @@ public:
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const Expr *getDefaultArg() const {
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assert(!hasUnparsedDefaultArg() && "Default argument is not yet parsed!");
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assert(!hasUninstantiatedDefaultArg() &&
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"Default argument is not yet instantiated!");
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return getInit();
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}
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Expr *getDefaultArg() {
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assert(!hasUnparsedDefaultArg() && "Default argument is not yet parsed!");
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assert(!hasUninstantiatedDefaultArg() &&
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"Default argument is not yet instantiated!");
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return getInit();
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}
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void setDefaultArg(Expr *defarg) {
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Init = reinterpret_cast<Stmt *>(defarg);
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}
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void setUninstantiatedDefaultArg(Expr *arg) {
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Init = reinterpret_cast<UninstantiatedDefaultArgument *>(arg);
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}
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Expr *getUninstantiatedDefaultArg() {
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return (Expr *)Init.get<UninstantiatedDefaultArgument *>();
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}
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/// hasDefaultArg - Determines whether this parameter has a default argument,
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/// either parsed or not.
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bool hasDefaultArg() const {
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return getInit() || hasUnparsedDefaultArg();
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return getInit() || hasUnparsedDefaultArg() ||
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hasUninstantiatedDefaultArg();
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}
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/// hasUnparsedDefaultArg - Determines whether this parameter has a
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@ -630,6 +647,10 @@ public:
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return Init.is<UnparsedDefaultArgument*>();
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}
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bool hasUninstantiatedDefaultArg() const {
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return Init.is<UninstantiatedDefaultArgument*>();
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}
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/// setUnparsedDefaultArg - Specify that this parameter has an
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/// unparsed default argument. The argument will be replaced with a
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/// real default argument via setDefaultArg when the class
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