Add an AST matcher for CastExpr kind
Summary:
This AST matcher will match a given CastExpr kind.
It's an narrowing matcher on CastExpr.
Reviewers: klimek, alexfh, sbenza, aaron.ballman
Subscribers: Prazek, jroelofs, aaron.ballman, klimek, cfe-commits
Differential Revision: http://reviews.llvm.org/D19871
llvm-svn: 269460
diff --git a/clang/lib/ASTMatchers/Dynamic/Marshallers.h b/clang/lib/ASTMatchers/Dynamic/Marshallers.h
index f28abb0..7b1a307 100644
--- a/clang/lib/ASTMatchers/Dynamic/Marshallers.h
+++ b/clang/lib/ASTMatchers/Dynamic/Marshallers.h
@@ -96,6 +96,28 @@
}
};
+template <> struct ArgTypeTraits<clang::CastKind> {
+private:
+ static clang::CastKind getCastKind(llvm::StringRef AttrKind) {
+ return llvm::StringSwitch<clang::CastKind>(AttrKind)
+#define CAST_OPERATION(Name) .Case( #Name, CK_##Name)
+#include "clang/AST/OperationKinds.def"
+ .Default(CK_Invalid);
+ }
+
+public:
+ static bool is(const VariantValue &Value) {
+ return Value.isString() &&
+ getCastKind(Value.getString()) != CK_Invalid;
+ }
+ static clang::CastKind get(const VariantValue &Value) {
+ return getCastKind(Value.getString());
+ }
+ static ArgKind getKind() {
+ return ArgKind(ArgKind::AK_String);
+ }
+};
+
/// \brief Matcher descriptor interface.
///
/// Provides a \c create() method that constructs the matcher from the provided