From: Argyrios Kyrtzidis <akyrtzi@gmail.com>
Date: Wed, 19 Oct 2011 02:25:16 +0000 (+0000)
Subject: Don't forget to complete the objc interface before asking for information,
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=7c81c2a5915878e4aa6908a097290fd47fb3a154;p=clang

Don't forget to complete the objc interface before asking for information,
otherwise lldb will suffer.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@142471 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/AST/DeclObjC.cpp b/lib/AST/DeclObjC.cpp
index 0481f9cdf5..7eb2688134 100644
--- a/lib/AST/DeclObjC.cpp
+++ b/lib/AST/DeclObjC.cpp
@@ -237,6 +237,9 @@ const ObjCCategoryDecl* ObjCCategoryDecl::getNextClassExtension() const {
 
 ObjCIvarDecl *ObjCInterfaceDecl::lookupInstanceVariable(IdentifierInfo *ID,
                                               ObjCInterfaceDecl *&clsDeclared) {
+  if (ExternallyCompleted)
+    LoadExternalDefinition();
+
   ObjCInterfaceDecl* ClassDecl = this;
   while (ClassDecl != NULL) {
     if (ObjCIvarDecl *I = ClassDecl->getIvarDecl(ID)) {
@@ -261,6 +264,9 @@ ObjCIvarDecl *ObjCInterfaceDecl::lookupInstanceVariable(IdentifierInfo *ID,
 /// the it returns NULL.
 ObjCInterfaceDecl *ObjCInterfaceDecl::lookupInheritedClass(
                                         const IdentifierInfo*ICName) {
+  if (ExternallyCompleted)
+    LoadExternalDefinition();
+
   ObjCInterfaceDecl* ClassDecl = this;
   while (ClassDecl != NULL) {
     if (ClassDecl->getIdentifier() == ICName)
@@ -315,6 +321,9 @@ ObjCMethodDecl *ObjCInterfaceDecl::lookupMethod(Selector Sel,
 ObjCMethodDecl *ObjCInterfaceDecl::lookupPrivateMethod(
                                    const Selector &Sel,
                                    bool Instance) {
+  if (ExternallyCompleted)
+    LoadExternalDefinition();
+
   ObjCMethodDecl *Method = 0;
   if (ObjCImplementationDecl *ImpDecl = getImplementation())
     Method = Instance ? ImpDecl->getInstanceMethod(Sel) 
diff --git a/lib/Sema/SemaExpr.cpp b/lib/Sema/SemaExpr.cpp
index 47c8f540e4..3b4a40b51a 100644
--- a/lib/Sema/SemaExpr.cpp
+++ b/lib/Sema/SemaExpr.cpp
@@ -1934,7 +1934,8 @@ Sema::LookupInObjCMethod(LookupResult &Lookup, Scope *S,
   if (LookForIvars) {
     IFace = CurMethod->getClassInterface();
     ObjCInterfaceDecl *ClassDeclared;
-    if (ObjCIvarDecl *IV = IFace->lookupInstanceVariable(II, ClassDeclared)) {
+    ObjCIvarDecl *IV = 0;
+    if (IFace && (IV = IFace->lookupInstanceVariable(II, ClassDeclared))) {
       // Diagnose using an ivar in a class method.
       if (IsClassMethod)
         return ExprError(Diag(Loc, diag::error_ivar_use_in_class_method)