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-rw-r--r--include/clang/ASTMatchers/ASTMatchers.h64
-rw-r--r--include/clang/ASTMatchers/ASTMatchersInternal.h38
2 files changed, 93 insertions, 9 deletions
diff --git a/include/clang/ASTMatchers/ASTMatchers.h b/include/clang/ASTMatchers/ASTMatchers.h
index 4e369523e8..c5ebd3c450 100644
--- a/include/clang/ASTMatchers/ASTMatchers.h
+++ b/include/clang/ASTMatchers/ASTMatchers.h
@@ -1384,18 +1384,26 @@ AST_MATCHER_P(NamedDecl, matchesName, std::string, RegExp) {
/// \brief Matches overloaded operator names.
///
/// Matches overloaded operator names specified in strings without the
-/// "operator" prefix, such as "<<", for OverloadedOperatorCall's.
+/// "operator" prefix: e.g. "<<".
///
-/// Example matches a << b
-/// (matcher == operatorCallExpr(hasOverloadedOperatorName("<<")))
+/// Given:
/// \code
-/// a << b;
-/// c && d; // assuming both operator<<
-/// // and operator&& are overloaded somewhere.
+/// class A { int operator*(); };
+/// const A &operator<<(const A &a, const A &b);
+/// A a;
+/// a << a; // <-- This matches
/// \endcode
-AST_MATCHER_P(CXXOperatorCallExpr,
- hasOverloadedOperatorName, std::string, Name) {
- return getOperatorSpelling(Node.getOperator()) == Name;
+///
+/// \c operatorCallExpr(hasOverloadedOperatorName("<<"))) matches the specified
+/// line and \c recordDecl(hasMethod(hasOverloadedOperatorName("*"))) matches
+/// the declaration of \c A.
+///
+/// Usable as: Matcher<CXXOperatorCallExpr>, Matcher<CXXMethodDecl>
+inline internal::PolymorphicMatcherWithParam1<
+ internal::HasOverloadedOperatorNameMatcher, StringRef>
+hasOverloadedOperatorName(const StringRef Name) {
+ return internal::PolymorphicMatcherWithParam1<
+ internal::HasOverloadedOperatorNameMatcher, StringRef>(Name);
}
/// \brief Matches C++ classes that are directly or indirectly derived from
@@ -1445,6 +1453,27 @@ inline internal::Matcher<CXXRecordDecl> isSameOrDerivedFrom(
return isSameOrDerivedFrom(hasName(BaseName));
}
+/// \brief Matches the first method of a class or struct that satisfies \c
+/// InnerMatcher.
+///
+/// Given:
+/// \code
+/// class A { void func(); };
+/// class B { void member(); };
+/// \code
+///
+/// \c recordDecl(hasMethod(hasName("func"))) matches the declaration of \c A
+/// but not \c B.
+AST_MATCHER_P(CXXRecordDecl, hasMethod, internal::Matcher<CXXMethodDecl>,
+ InnerMatcher) {
+ for (CXXRecordDecl::method_iterator I = Node.method_begin(),
+ E = Node.method_end();
+ I != E; ++I)
+ if (InnerMatcher.matches(**I, Finder, Builder))
+ return true;
+ return false;
+}
+
/// \brief Matches AST nodes that have child AST nodes that match the
/// provided matcher.
///
@@ -1786,6 +1815,23 @@ AST_MATCHER_P(QualType, references, internal::Matcher<QualType>,
InnerMatcher.matches(Node->getPointeeType(), Finder, Builder));
}
+/// \brief Matches QualTypes whose canonical type matches InnerMatcher.
+///
+/// Given:
+/// \code
+/// typedef int &int_ref;
+/// int a;
+/// int_ref b = a;
+/// \code
+///
+/// \c varDecl(hasType(qualType(referenceType()))))) will not match the
+/// declaration of b but \c
+/// varDecl(hasType(qualType(hasCanonicalType(referenceType())))))) does.
+AST_MATCHER_P(QualType, hasCanonicalType, internal::Matcher<QualType>,
+ InnerMatcher) {
+ return InnerMatcher.matches(Node.getCanonicalType(), Finder, Builder);
+}
+
/// \brief Overloaded to match the referenced type's declaration.
inline internal::Matcher<QualType> references(
const internal::Matcher<Decl> &InnerMatcher) {
diff --git a/include/clang/ASTMatchers/ASTMatchersInternal.h b/include/clang/ASTMatchers/ASTMatchersInternal.h
index f309794034..30691ad8f9 100644
--- a/include/clang/ASTMatchers/ASTMatchersInternal.h
+++ b/include/clang/ASTMatchers/ASTMatchersInternal.h
@@ -370,6 +370,44 @@ template <typename T> struct has_getDecl {
static bool const value = sizeof(f<Derived>(0)) == 2;
};
+/// \brief Matches overloaded operators with a specific name.
+///
+/// The type argument ArgT is not used by this matcher but is used by
+/// PolymorphicMatcherWithParam1 and should be StringRef.
+template <typename T, typename ArgT>
+class HasOverloadedOperatorNameMatcher : public SingleNodeMatcherInterface<T> {
+ TOOLING_COMPILE_ASSERT((llvm::is_same<T, CXXOperatorCallExpr>::value ||
+ llvm::is_same<T, CXXMethodDecl>::value),
+ unsupported_class_for_matcher);
+ TOOLING_COMPILE_ASSERT((llvm::is_same<ArgT, StringRef>::value),
+ argument_type_must_be_StringRef);
+public:
+ explicit HasOverloadedOperatorNameMatcher(const StringRef Name)
+ : SingleNodeMatcherInterface<T>(), Name(Name) {}
+
+ virtual bool matchesNode(const T &Node) const LLVM_OVERRIDE {
+ return matchesSpecialized(Node);
+ }
+
+private:
+
+ /// \brief CXXOperatorCallExpr exist only for calls to overloaded operators
+ /// so this function returns true if the call is to an operator of the given
+ /// name.
+ bool matchesSpecialized(const CXXOperatorCallExpr &Node) const {
+ return getOperatorSpelling(Node.getOperator()) == Name;
+ }
+
+ /// \brief Returns true only if CXXMethodDecl represents an overloaded
+ /// operator and has the given operator name.
+ bool matchesSpecialized(const CXXMethodDecl &Node) const {
+ return Node.isOverloadedOperator() &&
+ getOperatorSpelling(Node.getOverloadedOperator()) == Name;
+ }
+
+ std::string Name;
+};
+
/// \brief Matches declarations for QualType and CallExpr.
///
/// Type argument DeclMatcherT is required by PolymorphicMatcherWithParam1 but