objc-arc: captured block variable accessed in its block literal
initializer need be null initialized before initializer takes
hold, just like any other initialized retainable object pointer.
// rdar://11016025
Meador Inge [Tue, 19 Jun 2012 18:17:30 +0000 (18:17 +0000)]
Revert predefined decl tracking.
r158085 added some logic to track predefined declarations. The main reason we
had predefined declarations in the input was because the __builtin_va_list
declarations were injected into the preprocessor input. As of r158592 we
explicitly build the __builtin_va_list declarations. Therefore the predefined
decl tracking is no longer needed.
Chad Rosier [Tue, 19 Jun 2012 17:48:02 +0000 (17:48 +0000)]
[driver] Make the crash diagnostic message more visable. Bug reports are being
filed, but still missing the preprocessed source and associated run script.
rdar://11684107
Sean Hunt [Tue, 19 Jun 2012 03:39:03 +0000 (03:39 +0000)]
Improve the specification of spellings in Attr.td.
Note that this is mostly a structural patch that handles the change from the old
spelling style to the new one. One consequence of this is that all AT_foo_bar
enum values have changed to not be based off of the first spelling, but rather
off of the class name, so they are now AT_FooBar and the like (a straw poll on
IRC showed support for this). Apologies for code churn.
Most attributes have GNU spellings as a temporary solution until everything else
is sorted out (such as a Keyword spelling, which I intend to add if someone else
doesn't beat me to it). This is definitely a WIP.
I've also killed BaseCheckAttr since it was unused, and I had to go through
every attribute anyway.
[objcmt] When checking whether the subscripting methods are declared use
ObjCInterfaceDec::lookupInstanceMethod to make sure we check categories as well
and update related tests.
Rafael Espindola [Tue, 19 Jun 2012 01:26:10 +0000 (01:26 +0000)]
Add a -fuse-init-array option to cc1 and map to the UseInitArray target
option. On the driver, check if we are using libraries from gcc 4.7 or newer
and if so pass -fuse-init-array to the frontend.
The crtbegin*.o files in gcc 4.7 no longer call the constructors listed in
.ctors, so we have to use .init_array.
Kaelyn Uhrain [Tue, 19 Jun 2012 00:37:47 +0000 (00:37 +0000)]
Improve the error message when a function overload candidate is rejected
because it expects a reference and receives a non-l-value.
For example, given:
int foo(int &);
template<int x> void b() { foo(x); }
clang will now print "expects an l-value for 1st argument" instead of
"no known conversion from 'int' to 'int &' for 1st argument". The change
in wording (and associated code to detect the case) was prompted by
comment #5 in PR3104, and should be the last bit of work needed for the
bug.
Ted Kremenek [Tue, 19 Jun 2012 00:37:39 +0000 (00:37 +0000)]
Sink definition of IBOutlet, IBOutletCollection, and IBAction into
the compiler predefines buffer. These are essentially part of
the Objective-C language.
Jordan Rose [Mon, 18 Jun 2012 23:58:49 +0000 (23:58 +0000)]
Change -Winternal-linkage-in-inline from ExtWarn to Warning in C++.
Per post-commit review, it's not appropriate to use ExtWarn in C++, because
we can't prove that the inline function will actually be defined in more than
one place (and thus we can't prove that this violates the ODR).
This removes the warning entirely from uses in the main source file in C++.
Jordan Rose [Mon, 18 Jun 2012 22:09:19 +0000 (22:09 +0000)]
Support -Winternal-linkage-in-inline in C++ code.
This includes treating anonymous namespaces like internal linkage, and allowing
const variables to be used even if internal. The whole thing's been broken out
into a separate function to avoid nested ifs.
Jordan Rose [Mon, 18 Jun 2012 21:31:37 +0000 (21:31 +0000)]
Add new tool 'diag-build' for showing enabled warnings in a project.
diag-build acts as a wrapper for 'diagtool show-enabled', in the same way
that scan-build acts as a wrapper for the static analyzer. The common case is
simple: use 'diag-build make' or 'diag-build xcodebuild' to list the warnings
enabled for the first compilation command we see. Other build systems require
you to manually specify "dry-run" and "use $CC and $CXX"; if there is a build
system you are interested in, please add it to the switch statement.
diag-build is fairly stupid right now, but it serves its basic purpose.
Hopefully it can grow to meet any additional requirements.
Move a few static functions from DiagnosticRenderer.cpp into SourceManager.
This simplifies the code a little bit, since these functions all took a
SourceManager parameter and called a bunch of methods on it, and makes
the functions available to other users.
James Dennett [Mon, 18 Jun 2012 18:42:20 +0000 (18:42 +0000)]
Documentation cleanup:
* Escaped "::" where needed to prevent Doxygen trying to make links;
* Updated one mention of C++0x to refer to C++11;
* Fixed a \brief summary to make it somewhat concise.
Jordan Rose [Mon, 18 Jun 2012 17:49:58 +0000 (17:49 +0000)]
Allow internal decls in inline functions if the function is in the main file.
This handles the very common case of people writing inline functions in their
main source files and not tagging them as inline. These cases should still
behave as the user intended. (The diagnostic is still emitted as an extension.)
I'm reworking this code anyway to account for C++'s equivalent restriction in
[basic.def.odr]p6, but this should get some bots back to green.
Sean Hunt [Mon, 18 Jun 2012 16:13:52 +0000 (16:13 +0000)]
Handle C++11 attribute namespaces automatically.
Now, as long as the 'Namespaces' variable is correct inside Attr.td, the
generated code will correctly admit a C++11 attribute only when it has the
appropriate namespace(s).
Richard Smith [Mon, 18 Jun 2012 06:11:04 +0000 (06:11 +0000)]
Extend the error recovery for a template-argument-list terminated by '>>' to
also deal with '>>>' (in CUDA), '>=', and '>>='. Fix the FixItHints logic to
deal with cases where the token is followed by an adjacent '=', '==', '>=',
'>>=', or '>>>' token, where a naive fix-it would result in a differing token
stream on a re-lex.
Chandler Carruth [Sun, 17 Jun 2012 11:47:03 +0000 (11:47 +0000)]
Switch users of SmallMap to use SmallDenseMap instead.
The most important change here is that the destructor and copy
constructor for StoredDeclsList will now reliably be run. Previously,
the destructors at least were missed in some cases. See the LLVM commits
discussions for why SmallMap is broken and going away.
James Dennett [Sun, 17 Jun 2012 06:45:58 +0000 (06:45 +0000)]
Documentation cleanup:
* Escaped # characters in Doxygen comments as needed;
* Added/reformatted \brief docs;
* Used a \file comment to document the file (MultipleIncludeOpt.h).
James Dennett [Sun, 17 Jun 2012 04:36:28 +0000 (04:36 +0000)]
Documentation cleanup:
* Added \file, \brief and \verbatim...\endverbatim markup, particularly around
documentation of subset of the grammars that are being parsed.
James Dennett [Sun, 17 Jun 2012 03:40:43 +0000 (03:40 +0000)]
Documentation cleanup:
* Removed docs for Lexer::makeFileCharRange from Lexer.cpp, as they're in
the header file;
* Reworked the documentation for SkipBlockComment so that it doesn't confuse
Doxygen's comment parsing;
* Added another summary with \brief markup.
Richard Smith [Sat, 16 Jun 2012 23:34:14 +0000 (23:34 +0000)]
-Wuninitialized bugfix: when entering the scope of a variable with no
initializer, it is uninitialized, even if we may be coming from somewhere where
it was initialized.
Eli Friedman [Sat, 16 Jun 2012 02:19:17 +0000 (02:19 +0000)]
Fix Sema and IRGen for atomic compound assignment so it has the right semantics when promotions are involved.
(As far as I can tell, this only affects some edge cases.)
Jordan Rose [Sat, 16 Jun 2012 01:28:00 +0000 (01:28 +0000)]
[analyzer] Return an UnknownVal when we try to get the binding for a VLA.
This happens in C++ mode right at the declaration of a struct VLA;
MallocChecker sees a bind and tries to get see if it's an escaping bind.
It's likely that our handling of this is still incomplete, but it fixes a
crash on valid without disturbing anything else for now.
[AST/libclang] Fix the selector locations that are reported for a
method definition that has its '{' attached to the method name without
a space.
With a method like:
-(id)meth{
.....
}
the logic in ObjCMethodDecl that determined the selector locations got
confused because it was initialized based on an end location for '{' but
that end location changed to '}' after the method was finished.
Fix this by having an immutable end location for the declarator and
for getLocEnd() get the end location from the body itself.
Jordan Rose [Sat, 16 Jun 2012 00:09:20 +0000 (00:09 +0000)]
[analyzer] Buffers passed to CGBitmapContextCreate can escape.
Specifically, although the bitmap context does not take ownership of the
buffer (unlike CGBitmapContextCreateWithData), the data buffer can be extracted
out of the created CGContextRef. Thus the buffer is not leaked even if its
original pointer goes out of scope, as long as
- the context escapes, or
- it is retrieved via CGBitmapContextGetData and freed.
Actually implementing that logic is beyond the current scope of MallocChecker,
so for now CGBitmapContextCreate goes on our system function exception list.
Jordan Rose [Fri, 15 Jun 2012 23:33:51 +0000 (23:33 +0000)]
[-E] Emit a rewritten _Pragma on its own line.
1. Teach Lexer that pragma lexers are like macro expansions at EOF.
2. Treat pragmas like #define/#undef when printing.
3. If we just printed a directive, add a newline before any more tokens.
(4. Miscellaneous cleanup in PrintPreprocessedOutput.cpp)
PR10594 and <rdar://problem/11562490> (two separate related problems)
James Dennett [Fri, 15 Jun 2012 22:23:43 +0000 (22:23 +0000)]
Documentation cleanup:
* Escaped "::" and "<" as needed in Doxygen comments;
* Marked up code examples with \code...\endcode;
* Documented a \param that is current, instead of a few that aren't;
* Fixed up some \file and \brief comments.
James Dennett [Fri, 15 Jun 2012 22:10:14 +0000 (22:10 +0000)]
Documentation cleanup:
* Escaped Objective-C @keywords in Doxygen comments;
* Documented more accurate \params;
* Exposed some more summaries using \brief.
James Dennett [Fri, 15 Jun 2012 21:43:55 +0000 (21:43 +0000)]
Documentation cleanup:
* Escaped the # of #define in Doxygen comments;
* Formatting: Annotated __VA_ARGS__ with \c;
* Converted docs to use \brief to provide summaries;
* Fixed a typo: disbles -> disables.
Jordan Rose [Fri, 15 Jun 2012 18:19:56 +0000 (18:19 +0000)]
[completion] Add completions for @"..." and @(...), and tidy up @[] and @{}.
Specifically, @[] and @{} didn't have a type associated with them; we now
use "NSArray *" and "NSDictionary *", respectively. @"" has the type
"NSString *". @(), unfortunately, has type "id", since it (currently) may
be either an NSNumber or an NSString.
Add a test for all the Objective-C at-expression completions.
Jordan Rose [Fri, 15 Jun 2012 18:19:52 +0000 (18:19 +0000)]
[analyzer] RetainCount: don't track objects init'd with a delegate
We already didn't track objects that have delegates or callbacks or
objects that are passed through void * "context pointers". It's a
not-uncommon pattern to release the object in its callback, and so
the leak message we give is not very helpful.
Jordan Rose [Fri, 15 Jun 2012 18:19:48 +0000 (18:19 +0000)]
Warn when a static variable is referenced in a non-static inline function.
This is explicitly forbidden in C99 6.7.4p3. This is /not/ forbidden in C++,
probably because by default file-scope const/constexpr variables have internal
linkage, while functions have external linkage. There's also the issue of
anonymous namespaces to consider. Nevertheless, there should probably be a
similar warning, since the semantics of inlining a function that references
a variable with internal linkage do not seem well-defined.
projects / clang / log