Begin reworking static analyzer support for C++ method calls. The current logic was divorced

from how we process ordinary function calls, had a tremendous about of redundancy, and relied
strictly on inlining behavior (which was incomplete) to provide semantics instead of falling
back to the conservative analysis we use for C functions.  This is a significant step into
making C++ analyzer support more useful.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@128557 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 13 insertions, 2 deletions

diff --git a/lib/AST/ExprCXX.cpp b/lib/AST/ExprCXX.cpp
index 35c2d41008..02d60ef0a7 100644
--- a/lib/AST/ExprCXX.cpp
+++ b/lib/AST/ExprCXX.cpp
@@ -384,14 +384,25 @@ SourceRange CXXOperatorCallExpr::getSourceRange() const {
   }
 }
 
-Expr *CXXMemberCallExpr::getImplicitObjectArgument() {
-  if (MemberExpr *MemExpr = dyn_cast<MemberExpr>(getCallee()->IgnoreParens()))
+Expr *CXXMemberCallExpr::getImplicitObjectArgument() const {
+  if (const MemberExpr *MemExpr = 
+        dyn_cast<MemberExpr>(getCallee()->IgnoreParens()))
     return MemExpr->getBase();
 
   // FIXME: Will eventually need to cope with member pointers.
   return 0;
 }
 
+CXXMethodDecl *CXXMemberCallExpr::getMethodDecl() const {
+  if (const MemberExpr *MemExpr = 
+      dyn_cast<MemberExpr>(getCallee()->IgnoreParens()))
+    return cast<CXXMethodDecl>(MemExpr->getMemberDecl());
+
+  // FIXME: Will eventually need to cope with member pointers.
+  return 0;
+}
+
+
 CXXRecordDecl *CXXMemberCallExpr::getRecordDecl() {
   Expr* ThisArg = getImplicitObjectArgument();
   if (!ThisArg)