(clang/driver) command line arguments (including the source file).
 - The arguments are expected to include the source file.

 - The idea is that even though this is a somewhat odd API, its the form which
   many tools can most easily use (for example, by interposing with the compiler).

Also, switch index-test's -ast-from-source to use this entry point, and provide
a -arg command line argument which can be used to test that the command line
arguments are handled correctly.

llvm-svn: 90288

used to create a particular command.

llvm-svn: 90287

llvm-svn: 90285

Fixes pr5660.

llvm-svn: 90283

In SourceManager::isBeforeInTranslationUnit, if we are trying to compare two source locations with no common ancestor in the include stack, determine order by assuming memory buffers preceed files, and then that FileIDs are created in order.

The later assumption is patently false, but this was already broken -- this situation is conceptually impossible, my feeling is we should fix SourceManager and friends to make it impossible in practice as well. However, we need to fix PR5662 and perhaps some other things involving memory buffers first. In the short term I'm pretty sure this is reliable.

Chris, Argiris, is this going to break anything that wasn't already broken?

llvm-svn: 90280

llvm-svn: 90277

in diagnostics when we fail to open a file.  This allows us to
report things like:

$ clang test.c -I.
test.c:2:10: fatal error: error opening file './foo.h': Permission denied
#include "foo.h"
         ^

llvm-svn: 90276

llvm-svn: 90274

"Fixes" PR5645.

llvm-svn: 90272

Gets clang-on-clang passing again.

llvm-svn: 90270

llvm-svn: 90268

llvm-svn: 90267

implicit member access to a specific declaration, go ahead and create
it as a DeclRefExpr or a MemberExpr (with implicit CXXThisExpr base) as
appropriate.  Otherwise, create an UnresolvedMemberExpr or
DependentScopeMemberExpr with a null base expression.

By representing implicit accesses directly in the AST, we get the ability
to correctly delay the decision about whether it's actually an instance
member access or not until resolution is complete.  This permits us
to correctly avoid diagnosing the 'problem' of 'MyType::foo()'
where the relationship to the type isn't really known until instantiation.

llvm-svn: 90266

llvm-svn: 90264

llvm-svn: 90263

llvm-svn: 90262

to use it so it at least won't try to access Sema once it is gone.

llvm-svn: 90261

Exit the command line into <built-in> instead of going directly from the command line to the input file.

We passed <built-in> on the way in, so we should pass it again on the way out.

llvm-svn: 90250

of a subclass (direct or indirect) of a weak_import root class, emit a weak reference 
for the root class's metaclass (should complete radar 6815425).

llvm-svn: 90249

Fix early-return logic in scanReachableSymbols() to match the rest of the recursive logic in the methods of ScanReachableSymbols.

llvm-svn: 90245

llvm-svn: 90244

override virtual functions. Also, eliminate a (now redundant) call to
AddOverriddenMethods.

llvm-svn: 90242

common to both parsing and template instantiation, so that we'll find
overridden virtuals for member functions of class templates when they
are instantiated. 

Additionally, factor out the checking for pure virtual functions, so
that it will be executed both at parsing time and at template
instantiation time. 

These changes fix PR5656 (for real), although one more tweak
w.r.t. member function templates will be coming along shortly.

llvm-svn: 90241

ValueDecl, because that isn't always the case in ill-formed
code. Diagnose a common mistake (forgetting to provide a template
argument list for a class template, PR5655) and dyn_cast so that we
handle the general problem of referring to a non-value declaration
gracefully.

llvm-svn: 90239

be defined as pure. Fixes PR5656.

llvm-svn: 90237

llvm-svn: 90229

Also, add an -ast-from-source option to index-test which allows index-test to
run on source files directly.

llvm-svn: 90223

llvm-svn: 90215

llvm-svn: 90213

llvm-svn: 90209

llvm-svn: 90208

Highlights include:

  Fix __cxa_begin_catch so it now returns a value.
  Added getUnwindResumeOrRethrowFn helper to build up calls to
  _Unwind_Resume_or_Rethrow.
  Broke out object copying code into CopyObject from EmitCXXThrowExpr.
  Built up another version of CopyObject that can copy from memory for
  use in the catch parameter code.
  RTTI generation for type matching for catch.
  Code to check for the type match for catch.
  Code to generate the catch parameter, WIP, need make sure references
  and pointers and copy ctors work.

llvm-svn: 90205

llvm-svn: 90204

where it belongs.

llvm-svn: 90198

llvm-svn: 90197

llvm-svn: 90196

llvm-svn: 90195

quite slow and doesn't really stress the APIs people should really use.
 - I'm not even sure if this mode is still useful given the other scanning mode;
   Steve?

llvm-svn: 90193

Add c-index-test -test-load-source, which loads the translation unit from a source file (and other command line arguments).

llvm-svn: 90187

ASTContext instead of malloc.  Besides reducing malloc traffic, this
also removes a source of memory leaks when using a BumpPtrAllocator
for the allocator of ASTContext.  There are still leaks when using
MallocAllocator because Decl::Destroy() isn't fully finished.

Fixes: <rdar://problem/7431556>
llvm-svn: 90174