</pre></td></tr>
-<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXMethodDecl.html">CXXMethodDecl</a>></td><td class="name" onclick="toggle('forEachOverridden0')"><a name="forEachOverridden0Anchor">forEachOverridden</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXMethodDecl.html">CXXMethodDecl</a>> InnerMatcher</td></tr>
-<tr><td colspan="4" class="doc" id="forEachOverridden0"><pre>Matches each method overriden by the given method. This matcher may
-produce multiple matches.
-
-Given
- class A { virtual void f(); };
- class B : public A { void f(); };
- class C : public B { void f(); };
-cxxMethodDecl(ofClass(hasName("C")),
- forEachOverridden(cxxMethodDecl().bind("b"))).bind("d")
- matches once, with "b" binding "A::f" and "d" binding "C::f" (Note
- that B::f is not overridden by C::f).
-
-The check can produce multiple matches in case of multiple inheritance, e.g.
- class A1 { virtual void f(); };
- class A2 { virtual void f(); };
- class C : public A1, public A2 { void f(); };
-cxxMethodDecl(ofClass(hasName("C")),
- forEachOverridden(cxxMethodDecl().bind("b"))).bind("d")
- matches twice, once with "b" binding "A1::f" and "d" binding "C::f", and
- once with "b" binding "A2::f" and "d" binding "C::f".
-</pre></td></tr>
-
-
<tr><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXMethodDecl.html">CXXMethodDecl</a>></td><td class="name" onclick="toggle('ofClass0')"><a name="ofClass0Anchor">ofClass</a></td><td>Matcher<<a href="http://clang.llvm.org/doxygen/classclang_1_1CXXRecordDecl.html">CXXRecordDecl</a>> InnerMatcher</td></tr>
<tr><td colspan="4" class="doc" id="ofClass0"><pre>Matches the class declaration that the given method declaration
belongs to.
overridden_methods_end(const CXXMethodDecl *Method) const;
unsigned overridden_methods_size(const CXXMethodDecl *Method) const;
- typedef llvm::iterator_range<overridden_cxx_method_iterator>
- overridden_method_range;
- overridden_method_range overridden_methods(const CXXMethodDecl *Method) const;
/// \brief Note that the given C++ \p Method overrides the given \p
/// Overridden method.
#ifndef LLVM_CLANG_AST_DECLCXX_H
#define LLVM_CLANG_AST_DECLCXX_H
-#include "clang/AST/ASTContext.h"
#include "clang/AST/ASTUnresolvedSet.h"
#include "clang/AST/Attr.h"
#include "clang/AST/Decl.h"
method_iterator begin_overridden_methods() const;
method_iterator end_overridden_methods() const;
unsigned size_overridden_methods() const;
- typedef ASTContext::overridden_method_range overridden_method_range;
- overridden_method_range overridden_methods() const;
/// Returns the parent of this method declaration, which
/// is the class in which this method is defined.
InnerMatcher.matches(*Parent, Finder, Builder));
}
-/// \brief Matches each method overriden by the given method. This matcher may
-/// produce multiple matches.
-///
-/// Given
-/// \code
-/// class A { virtual void f(); };
-/// class B : public A { void f(); };
-/// class C : public B { void f(); };
-/// \endcode
-/// cxxMethodDecl(ofClass(hasName("C")),
-/// forEachOverridden(cxxMethodDecl().bind("b"))).bind("d")
-/// matches once, with "b" binding "A::f" and "d" binding "C::f" (Note
-/// that B::f is not overridden by C::f).
-///
-/// The check can produce multiple matches in case of multiple inheritance, e.g.
-/// \code
-/// class A1 { virtual void f(); };
-/// class A2 { virtual void f(); };
-/// class C : public A1, public A2 { void f(); };
-/// \endcode
-/// cxxMethodDecl(ofClass(hasName("C")),
-/// forEachOverridden(cxxMethodDecl().bind("b"))).bind("d")
-/// matches twice, once with "b" binding "A1::f" and "d" binding "C::f", and
-/// once with "b" binding "A2::f" and "d" binding "C::f".
-AST_MATCHER_P(CXXMethodDecl, forEachOverridden,
- internal::Matcher<CXXMethodDecl>, InnerMatcher) {
- BoundNodesTreeBuilder Result;
- bool Matched = false;
- for (const auto *Overridden : Node.overridden_methods()) {
- BoundNodesTreeBuilder OverriddenBuilder(*Builder);
- const bool OverriddenMatched =
- InnerMatcher.matches(*Overridden, Finder, &OverriddenBuilder);
- if (OverriddenMatched) {
- Matched = true;
- Result.addMatch(OverriddenBuilder);
- }
- }
- *Builder = std::move(Result);
- return Matched;
-}
-
/// \brief Matches if the given method declaration is virtual.
///
/// Given
ASTContext::overridden_cxx_method_iterator
ASTContext::overridden_methods_begin(const CXXMethodDecl *Method) const {
- llvm::DenseMap<const CXXMethodDecl *, CXXMethodVector>::const_iterator Pos =
- OverriddenMethods.find(Method->getCanonicalDecl());
+ llvm::DenseMap<const CXXMethodDecl *, CXXMethodVector>::const_iterator Pos
+ = OverriddenMethods.find(Method->getCanonicalDecl());
if (Pos == OverriddenMethods.end())
return nullptr;
+
return Pos->second.begin();
}
ASTContext::overridden_cxx_method_iterator
ASTContext::overridden_methods_end(const CXXMethodDecl *Method) const {
- llvm::DenseMap<const CXXMethodDecl *, CXXMethodVector>::const_iterator Pos =
- OverriddenMethods.find(Method->getCanonicalDecl());
+ llvm::DenseMap<const CXXMethodDecl *, CXXMethodVector>::const_iterator Pos
+ = OverriddenMethods.find(Method->getCanonicalDecl());
if (Pos == OverriddenMethods.end())
return nullptr;
+
return Pos->second.end();
}
unsigned
ASTContext::overridden_methods_size(const CXXMethodDecl *Method) const {
- llvm::DenseMap<const CXXMethodDecl *, CXXMethodVector>::const_iterator Pos =
- OverriddenMethods.find(Method->getCanonicalDecl());
+ llvm::DenseMap<const CXXMethodDecl *, CXXMethodVector>::const_iterator Pos
+ = OverriddenMethods.find(Method->getCanonicalDecl());
if (Pos == OverriddenMethods.end())
return 0;
- return Pos->second.size();
-}
-ASTContext::overridden_method_range
-ASTContext::overridden_methods(const CXXMethodDecl *Method) const {
- return overridden_method_range(overridden_methods_begin(Method),
- overridden_methods_end(Method));
+ return Pos->second.size();
}
void ASTContext::addOverriddenMethod(const CXXMethodDecl *Method,
return getASTContext().overridden_methods_size(this);
}
-CXXMethodDecl::overridden_method_range
-CXXMethodDecl::overridden_methods() const {
- if (isa<CXXConstructorDecl>(this))
- return overridden_method_range(nullptr, nullptr);
- return getASTContext().overridden_methods(this);
-}
-
QualType CXXMethodDecl::getThisType(ASTContext &C) const {
// C++ 9.3.2p1: The type of this in a member function of a class X is X*.
// If the member function is declared const, the type of this is const X*,
EXPECT_TRUE(notMatches(CppString2, returnStmt(forFunction(hasName("F")))));
}
-TEST(Matcher, ForEachOverriden) {
- const auto ForEachOverriddenInClass = [](const char *ClassName) {
- return cxxMethodDecl(ofClass(hasName(ClassName)), isVirtual(),
- forEachOverridden(cxxMethodDecl().bind("overridden")))
- .bind("override");
- };
- constexpr const char Code1[] = "class A { virtual void f(); };"
- "class B : public A { void f(); };"
- "class C : public B { void f(); };";
- // C::f overrides A::f.
- EXPECT_TRUE(matchAndVerifyResultTrue(
- Code1, ForEachOverriddenInClass("C"),
- llvm::make_unique<VerifyIdIsBoundTo<CXXMethodDecl>>("override", "f", 1)));
- EXPECT_TRUE(matchAndVerifyResultTrue(
- Code1, ForEachOverriddenInClass("C"),
- llvm::make_unique<VerifyIdIsBoundTo<CXXMethodDecl>>("overridden", "f",
- 1)));
- // B::f overrides A::f.
- EXPECT_TRUE(matchAndVerifyResultTrue(
- Code1, ForEachOverriddenInClass("B"),
- llvm::make_unique<VerifyIdIsBoundTo<CXXMethodDecl>>("override", "f", 1)));
- EXPECT_TRUE(matchAndVerifyResultTrue(
- Code1, ForEachOverriddenInClass("B"),
- llvm::make_unique<VerifyIdIsBoundTo<CXXMethodDecl>>("overridden", "f",
- 1)));
- // A::f overrides nothing.
- EXPECT_TRUE(notMatches(Code1, ForEachOverriddenInClass("A")));
-
- constexpr const char Code2[] =
- "class A1 { virtual void f(); };"
- "class A2 { virtual void f(); };"
- "class B : public A1, public A2 { void f(); };";
- // B::f overrides A1::f and A2::f. This produces two matches.
- EXPECT_TRUE(matchAndVerifyResultTrue(
- Code2, ForEachOverriddenInClass("B"),
- llvm::make_unique<VerifyIdIsBoundTo<CXXMethodDecl>>("override", "f", 2)));
- EXPECT_TRUE(matchAndVerifyResultTrue(
- Code2, ForEachOverriddenInClass("B"),
- llvm::make_unique<VerifyIdIsBoundTo<CXXMethodDecl>>("overridden", "f",
- 2)));
- // A1::f overrides nothing.
- EXPECT_TRUE(notMatches(Code2, ForEachOverriddenInClass("A1")));
-}
-
} // namespace ast_matchers
} // namespace clang