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-rw-r--r--contrib/llvm/tools/clang/lib/Checker/CheckObjCInstMethSignature.cpp119
1 files changed, 0 insertions, 119 deletions
diff --git a/contrib/llvm/tools/clang/lib/Checker/CheckObjCInstMethSignature.cpp b/contrib/llvm/tools/clang/lib/Checker/CheckObjCInstMethSignature.cpp
deleted file mode 100644
index 76a0923..0000000
--- a/contrib/llvm/tools/clang/lib/Checker/CheckObjCInstMethSignature.cpp
+++ /dev/null
@@ -1,119 +0,0 @@
-//=- CheckObjCInstMethodRetTy.cpp - Check ObjC method signatures -*- C++ -*-==//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file defines a CheckObjCInstMethSignature, a flow-insenstive check
-// that determines if an Objective-C class interface incorrectly redefines
-// the method signature in a subclass.
-//
-//===----------------------------------------------------------------------===//
-
-#include "clang/Checker/Checkers/LocalCheckers.h"
-#include "clang/Checker/BugReporter/PathDiagnostic.h"
-#include "clang/Checker/BugReporter/BugReporter.h"
-#include "clang/AST/DeclObjC.h"
-#include "clang/AST/Type.h"
-#include "clang/AST/ASTContext.h"
-
-#include "llvm/ADT/DenseMap.h"
-#include "llvm/Support/raw_ostream.h"
-
-using namespace clang;
-
-static bool AreTypesCompatible(QualType Derived, QualType Ancestor,
- ASTContext& C) {
-
- // Right now don't compare the compatibility of pointers. That involves
- // looking at subtyping relationships. FIXME: Future patch.
- if (Derived->isAnyPointerType() && Ancestor->isAnyPointerType())
- return true;
-
- return C.typesAreCompatible(Derived, Ancestor);
-}
-
-static void CompareReturnTypes(const ObjCMethodDecl *MethDerived,
- const ObjCMethodDecl *MethAncestor,
- BugReporter &BR, ASTContext &Ctx,
- const ObjCImplementationDecl *ID) {
-
- QualType ResDerived = MethDerived->getResultType();
- QualType ResAncestor = MethAncestor->getResultType();
-
- if (!AreTypesCompatible(ResDerived, ResAncestor, Ctx)) {
- std::string sbuf;
- llvm::raw_string_ostream os(sbuf);
-
- os << "The Objective-C class '"
- << MethDerived->getClassInterface()
- << "', which is derived from class '"
- << MethAncestor->getClassInterface()
- << "', defines the instance method '"
- << MethDerived->getSelector().getAsString()
- << "' whose return type is '"
- << ResDerived.getAsString()
- << "'. A method with the same name (same selector) is also defined in "
- "class '"
- << MethAncestor->getClassInterface()
- << "' and has a return type of '"
- << ResAncestor.getAsString()
- << "'. These two types are incompatible, and may result in undefined "
- "behavior for clients of these classes.";
-
- BR.EmitBasicReport("Incompatible instance method return type",
- os.str(), MethDerived->getLocStart());
- }
-}
-
-void clang::CheckObjCInstMethSignature(const ObjCImplementationDecl* ID,
- BugReporter& BR) {
-
- const ObjCInterfaceDecl* D = ID->getClassInterface();
- const ObjCInterfaceDecl* C = D->getSuperClass();
-
- if (!C)
- return;
-
- ASTContext& Ctx = BR.getContext();
-
- // Build a DenseMap of the methods for quick querying.
- typedef llvm::DenseMap<Selector,ObjCMethodDecl*> MapTy;
- MapTy IMeths;
- unsigned NumMethods = 0;
-
- for (ObjCImplementationDecl::instmeth_iterator I=ID->instmeth_begin(),
- E=ID->instmeth_end(); I!=E; ++I) {
-
- ObjCMethodDecl* M = *I;
- IMeths[M->getSelector()] = M;
- ++NumMethods;
- }
-
- // Now recurse the class hierarchy chain looking for methods with the
- // same signatures.
- while (C && NumMethods) {
- for (ObjCInterfaceDecl::instmeth_iterator I=C->instmeth_begin(),
- E=C->instmeth_end(); I!=E; ++I) {
-
- ObjCMethodDecl* M = *I;
- Selector S = M->getSelector();
-
- MapTy::iterator MI = IMeths.find(S);
-
- if (MI == IMeths.end() || MI->second == 0)
- continue;
-
- --NumMethods;
- ObjCMethodDecl* MethDerived = MI->second;
- MI->second = 0;
-
- CompareReturnTypes(MethDerived, M, BR, Ctx, ID);
- }
-
- C = C->getSuperClass();
- }
-}
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