Add IsImplicit field in ObjCMessageExpr that is true when the message

was constructed, e.g. for a property access.

This allows the selector identifier locations machinery for ObjCMessageExpr
to function correctly, in that there are not real locations to handle/report for
such a message.

llvm-svn: 148013

1 files changed, 45 insertions, 19 deletions

diff --git a/clang/lib/AST/Expr.cpp b/clang/lib/AST/Expr.cpp
index f87d60f7fbe..e7177aabe2b 100644
--- a/clang/lib/AST/Expr.cpp
+++ b/clang/lib/AST/Expr.cpp
@@ -2789,7 +2789,8 @@ ObjCMessageExpr::ObjCMessageExpr(QualType T,
                                  SelectorLocationsKind SelLocsK,
                                  ObjCMethodDecl *Method,
                                  ArrayRef<Expr *> Args,
-                                 SourceLocation RBracLoc)
+                                 SourceLocation RBracLoc,
+                                 bool isImplicit)
   : Expr(ObjCMessageExprClass, T, VK, OK_Ordinary,
          /*TypeDependent=*/false, /*ValueDependent=*/false,
          /*InstantiationDependent=*/false,
@@ -2797,8 +2798,8 @@ ObjCMessageExpr::ObjCMessageExpr(QualType T,
     SelectorOrMethod(reinterpret_cast<uintptr_t>(Method? Method
                                                        : Sel.getAsOpaquePtr())),
     Kind(IsInstanceSuper? SuperInstance : SuperClass),
-    HasMethod(Method != 0), IsDelegateInitCall(false), SuperLoc(SuperLoc),
-    LBracLoc(LBracLoc), RBracLoc(RBracLoc) 
+    HasMethod(Method != 0), IsDelegateInitCall(false), IsImplicit(isImplicit),
+    SuperLoc(SuperLoc), LBracLoc(LBracLoc), RBracLoc(RBracLoc) 
 {
   initArgsAndSelLocs(Args, SelLocs, SelLocsK);
   setReceiverPointer(SuperType.getAsOpaquePtr());
@@ -2813,14 +2814,15 @@ ObjCMessageExpr::ObjCMessageExpr(QualType T,
                                  SelectorLocationsKind SelLocsK,
                                  ObjCMethodDecl *Method,
                                  ArrayRef<Expr *> Args,
-                                 SourceLocation RBracLoc)
+                                 SourceLocation RBracLoc,
+                                 bool isImplicit)
   : Expr(ObjCMessageExprClass, T, VK, OK_Ordinary, T->isDependentType(),
          T->isDependentType(), T->isInstantiationDependentType(),
          T->containsUnexpandedParameterPack()),
     SelectorOrMethod(reinterpret_cast<uintptr_t>(Method? Method
                                                        : Sel.getAsOpaquePtr())),
     Kind(Class),
-    HasMethod(Method != 0), IsDelegateInitCall(false),
+    HasMethod(Method != 0), IsDelegateInitCall(false), IsImplicit(isImplicit),
     LBracLoc(LBracLoc), RBracLoc(RBracLoc) 
 {
   initArgsAndSelLocs(Args, SelLocs, SelLocsK);
@@ -2836,7 +2838,8 @@ ObjCMessageExpr::ObjCMessageExpr(QualType T,
                                  SelectorLocationsKind SelLocsK,
                                  ObjCMethodDecl *Method,
                                  ArrayRef<Expr *> Args,
-                                 SourceLocation RBracLoc)
+                                 SourceLocation RBracLoc,
+                                 bool isImplicit)
   : Expr(ObjCMessageExprClass, T, VK, OK_Ordinary, Receiver->isTypeDependent(),
          Receiver->isTypeDependent(),
          Receiver->isInstantiationDependent(),
@@ -2844,7 +2847,7 @@ ObjCMessageExpr::ObjCMessageExpr(QualType T,
     SelectorOrMethod(reinterpret_cast<uintptr_t>(Method? Method
                                                        : Sel.getAsOpaquePtr())),
     Kind(Instance),
-    HasMethod(Method != 0), IsDelegateInitCall(false),
+    HasMethod(Method != 0), IsDelegateInitCall(false), IsImplicit(isImplicit),
     LBracLoc(LBracLoc), RBracLoc(RBracLoc) 
 {
   initArgsAndSelLocs(Args, SelLocs, SelLocsK);
@@ -2884,12 +2887,19 @@ ObjCMessageExpr *ObjCMessageExpr::Create(ASTContext &Context, QualType T,
                                          ArrayRef<SourceLocation> SelLocs,
                                          ObjCMethodDecl *Method,
                                          ArrayRef<Expr *> Args,
-                                         SourceLocation RBracLoc) {
-  SelectorLocationsKind SelLocsK;
-  ObjCMessageExpr *Mem = alloc(Context, Args, RBracLoc, SelLocs, Sel, SelLocsK);
+                                         SourceLocation RBracLoc,
+                                         bool isImplicit) {
+  assert((!SelLocs.empty() || isImplicit) &&
+         "No selector locs for non-implicit message");
+  ObjCMessageExpr *Mem;
+  SelectorLocationsKind SelLocsK = SelectorLocationsKind();
+  if (isImplicit)
+    Mem = alloc(Context, Args.size(), 0);
+  else
+    Mem = alloc(Context, Args, RBracLoc, SelLocs, Sel, SelLocsK);
   return new (Mem) ObjCMessageExpr(T, VK, LBracLoc, SuperLoc, IsInstanceSuper,
                                    SuperType, Sel, SelLocs, SelLocsK,
-                                   Method, Args, RBracLoc);
+                                   Method, Args, RBracLoc, isImplicit);
 }
 
 ObjCMessageExpr *ObjCMessageExpr::Create(ASTContext &Context, QualType T,
@@ -2900,11 +2910,19 @@ ObjCMessageExpr *ObjCMessageExpr::Create(ASTContext &Context, QualType T,
                                          ArrayRef<SourceLocation> SelLocs,
                                          ObjCMethodDecl *Method,
                                          ArrayRef<Expr *> Args,
-                                         SourceLocation RBracLoc) {
-  SelectorLocationsKind SelLocsK;
-  ObjCMessageExpr *Mem = alloc(Context, Args, RBracLoc, SelLocs, Sel, SelLocsK);
+                                         SourceLocation RBracLoc,
+                                         bool isImplicit) {
+  assert((!SelLocs.empty() || isImplicit) &&
+         "No selector locs for non-implicit message");
+  ObjCMessageExpr *Mem;
+  SelectorLocationsKind SelLocsK = SelectorLocationsKind();
+  if (isImplicit)
+    Mem = alloc(Context, Args.size(), 0);
+  else
+    Mem = alloc(Context, Args, RBracLoc, SelLocs, Sel, SelLocsK);
   return new (Mem) ObjCMessageExpr(T, VK, LBracLoc, Receiver, Sel,
-                                   SelLocs, SelLocsK, Method, Args, RBracLoc);
+                                   SelLocs, SelLocsK, Method, Args, RBracLoc,
+                                   isImplicit);
 }
 
 ObjCMessageExpr *ObjCMessageExpr::Create(ASTContext &Context, QualType T,
@@ -2915,11 +2933,19 @@ ObjCMessageExpr *ObjCMessageExpr::Create(ASTContext &Context, QualType T,
                                          ArrayRef<SourceLocation> SelLocs,
                                          ObjCMethodDecl *Method,
                                          ArrayRef<Expr *> Args,
-                                         SourceLocation RBracLoc) {
-  SelectorLocationsKind SelLocsK;
-  ObjCMessageExpr *Mem = alloc(Context, Args, RBracLoc, SelLocs, Sel, SelLocsK);
+                                         SourceLocation RBracLoc,
+                                         bool isImplicit) {
+  assert((!SelLocs.empty() || isImplicit) &&
+         "No selector locs for non-implicit message");
+  ObjCMessageExpr *Mem;
+  SelectorLocationsKind SelLocsK = SelectorLocationsKind();
+  if (isImplicit)
+    Mem = alloc(Context, Args.size(), 0);
+  else
+    Mem = alloc(Context, Args, RBracLoc, SelLocs, Sel, SelLocsK);
   return new (Mem) ObjCMessageExpr(T, VK, LBracLoc, Receiver, Sel,
-                                   SelLocs, SelLocsK, Method, Args, RBracLoc);
+                                   SelLocs, SelLocsK, Method, Args, RBracLoc,
+                                   isImplicit);
 }
 
 ObjCMessageExpr *ObjCMessageExpr::CreateEmpty(ASTContext &Context,