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[ASTMatchers] Make hasOverloadedOperatorName also match freestanding overloads. 

Freestanding overloads are represented as FunctionDecls in the AST, make
the matcher also match them.

Differential Revision: http://reviews.llvm.org/D4493

llvm-svn: 212940
This commit is contained in:
Benjamin Kramer 2014-07-14 14:05:02 +00:00
parent 8e254166e1
commit 09514492cc
3 changed files with 12 additions and 5 deletions
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6
clang/include/clang/ASTMatchers/ASTMatchers.h
View File

@ -1542,14 +1542,14 @@ AST_MATCHER_P(NamedDecl, matchesName, std::string, RegExp) {
/// line and \c recordDecl(hasMethod(hasOverloadedOperatorName("*"))) matches
/// the declaration of \c A.
///
/// Usable as: Matcher<CXXOperatorCallExpr>, Matcher<CXXMethodDecl>
/// Usable as: Matcher<CXXOperatorCallExpr>, Matcher<FunctionDecl>
inline internal::PolymorphicMatcherWithParam1<
internal::HasOverloadedOperatorNameMatcher, StringRef,
AST_POLYMORPHIC_SUPPORTED_TYPES_2(CXXOperatorCallExpr, CXXMethodDecl)>
AST_POLYMORPHIC_SUPPORTED_TYPES_2(CXXOperatorCallExpr, FunctionDecl)>
hasOverloadedOperatorName(const StringRef Name) {
return internal::PolymorphicMatcherWithParam1<
internal::HasOverloadedOperatorNameMatcher, StringRef,
AST_POLYMORPHIC_SUPPORTED_TYPES_2(CXXOperatorCallExpr, CXXMethodDecl)>(
AST_POLYMORPHIC_SUPPORTED_TYPES_2(CXXOperatorCallExpr, FunctionDecl)>(
Name);
}

4
clang/include/clang/ASTMatchers/ASTMatchersInternal.h
View File

@ -517,7 +517,7 @@ template <typename T> struct has_getDecl {
template <typename T, typename ArgT>
class HasOverloadedOperatorNameMatcher : public SingleNodeMatcherInterface<T> {
static_assert(std::is_same<T, CXXOperatorCallExpr>::value ||
std::is_same<T, CXXMethodDecl>::value,
std::is_base_of<FunctionDecl, T>::value,
"unsupported class for matcher");
static_assert(std::is_same<ArgT, StringRef>::value,
"argument type must be StringRef");
@ -541,7 +541,7 @@ private:
/// \brief Returns true only if CXXMethodDecl represents an overloaded
/// operator and has the given operator name.
bool matchesSpecialized(const CXXMethodDecl &Node) const {
bool matchesSpecialized(const FunctionDecl &Node) const {
return Node.isOverloadedOperator() &&
getOperatorSpelling(Node.getOverloadedOperator()) == Name;
}

7
clang/unittests/ASTMatchers/ASTMatchersTest.cpp
View File

@ -1095,12 +1095,19 @@ TEST(Matcher, HasOperatorNameForOverloadedOperatorCall) {
"bool operator&&(Y x, Y y) { return true; }; "
"Y a; Y b; bool c = a && b;",
OpCallLessLess));
StatementMatcher OpStarCall =
operatorCallExpr(hasOverloadedOperatorName("*"));
EXPECT_TRUE(matches("class Y; int operator*(Y &); void f(Y &y) { *y; }",
OpStarCall));
DeclarationMatcher ClassWithOpStar =
recordDecl(hasMethod(hasOverloadedOperatorName("*")));
EXPECT_TRUE(matches("class Y { int operator*(); };",
ClassWithOpStar));
EXPECT_TRUE(notMatches("class Y { void myOperator(); };",
ClassWithOpStar)) ;
DeclarationMatcher AnyOpStar = functionDecl(hasOverloadedOperatorName("*"));
EXPECT_TRUE(matches("class Y; int operator*(Y &);", AnyOpStar));
EXPECT_TRUE(matches("class Y { int operator*(); };", AnyOpStar));
}
TEST(Matcher, NestedOverloadedOperatorCalls) {