Reworked control flow to:
- rewrite the block expr body "in place".
- used Chris's new rewriter hook "getRewritenText" to "lift" the text for later use.
- finally, we do the block expr text replacement.
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clang -mmacosx-version-min=10.4.9 ...
you'll end up with a target triple like "i686-apple-darwin8.9".
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Since we don't have DeclGroup's and location information for types, there is some fancy footwork to do this fairly reliably.
O.K...it's a kludge. One day, we can use this as motivation to do this more gracefully:-)
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"Method accepting NSError** argument should have non-void return value to indicate that an error occurred."
Test case written, but the header needs to be delta-debugged reduced. Will commit shortly.
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Block literals are now represented by the concrete BlockExpr class.
This is cleanup (removes a FIXME).
No functionality change.
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"Here is a patch what replaces std::ostream with llvm::raw_ostream. This patch
covers the AST library, but ignores Analysis lib."
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- For investigating warnings in system headers / builtins.
- Currently also enables the behavior that allows silent redefinition
of types in system headers. Conceptually these are separate but I
didn't feel it was worth two options (or changing LangOptions).
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Need a couple tweaks to RewriteObjCTryStmt(). Need to deal with implicit finally clauses (to make sure objc_exception_try_exit is called). Also fixed a related bug where we need to generate an implicit @catch else clause (to again make sure objc_exception_try_exit is called).
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This change effects both RecordDecls and CXXRecordDecls, but does not effect EnumDecls (yet).
The motivation of this patch is as follows:
- Capture more source information, necessary for refactoring/rewriting clients.
- Pave the way to resolve ownership issues with RecordDecls with the forthcoming
addition of DeclGroups.
Current caveats:
- Until DeclGroups are in place, we will leak RecordDecls not explicitly
referenced by the AST. For example:
typedef struct { ... } x;
The RecordDecl for the struct will be leaked because the TypedefDecl doesn't
refer to it. This will be solved with DeclGroups.
- This patch also (temporarily) breaks CodeGen. More below.
High-level changes:
- As before, TagType still refers to a TagDecl, but it doesn't own it. When
a struct/union/class is first referenced, a RecordType and RecordDecl are
created for it, and the RecordType refers to that RecordDecl. Later, if
a new RecordDecl is created, the pointer to a RecordDecl in RecordType is
updated to point to the RecordDecl that defines the struct/union/class.
- TagDecl and RecordDecl now how a method 'getDefinition()' to return the
TagDecl*/RecordDecl* that refers to the TagDecl* that defines a particular
enum/struct/class/union. This is useful from going from a RecordDecl* that
defines a forward declaration to the RecordDecl* that provides the actual
definition. Note that this also works for EnumDecls, except that in this case
there is no distinction between forward declarations and definitions (yet).
- Clients should no longer assume that 'isDefinition()' returns true from a
RecordDecl if the corresponding struct/union/class has been defined.
isDefinition() only returns true if a particular RecordDecl is the defining
Decl. Use 'getDefinition()' instead to determine if a struct has been defined.
- The main changes to Sema happen in ActOnTag. To make the changes more
incremental, I split off the processing of enums and structs et al into two
code paths. Enums use the original code path (which is in ActOnTag) and
structs use the ActOnTagStruct. Eventually the two code paths will be merged,
but the idea was to preserve the original logic both for comparison and not to
change the logic for both enums and structs all at once.
- There is NO CHAINING of RecordDecls for the same RecordType. All RecordDecls
that correspond to the same type simply have a pointer to that type. If we
need to figure out what are all the RecordDecls for a given type we can build
a backmap.
- The diff in CXXRecordDecl.[cpp,h] is actually very small; it just mimics the
changes to RecordDecl. For some reason 'svn' marks the entire file as changed.
Why is CodeGen broken:
- Codegen assumes that there is an equivalence between RecordDecl* and
RecordType*. This was true before because we only created one RecordDecl* for
a given RecordType*, but it is no longer true. I believe this shouldn't be too
hard to change, but the patch was big enough as it is.
I have tested this patch on both the clang test suite, and by running the static analyzer over Postgresql and a large Apple-internal project (mix of Objective-C and C).
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- gcc is not happy if we start a preprocessed file with
#line 1 "XXX" 1
- Workaround by making sure file starts with a simple #line change.
Also, factored WriteLineInfo out.
Also, fixed bug where FileType was not being correctly updated.
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The motivation behind this change is that chaining the RecordDecls is simply unnecessary. Once we create multiple RecordDecls for the same struct/union/class, clients that care about all the declarations of the same struct can build a back map by seeing which Decls refer to the same RecordType.
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- Change enum name to Kind.
- Change enum constants to English strings.
Also, fix getPropertyImplementation (which probably should be renamed)
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an APInt directly to an ostream now, so add some hacks. It would
be better to switch all of the bugreport (and friends) stuff over
to raw_ostream.
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- Used to autoselect runtime when neither -fnext-runtime nor
-fgnu-runtime is specified.
- Default impl is false, all darwin targets set it to true.
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For example, adding the default system include paths in clients is now as
simple as
InitHeaderSearch init(headers);
init.AddDefaultSystemIncludePaths(langopts);
init.Realize();
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- Wired to -fnext-runtime and -fgnu-runtime options.
- Defaults to GNU, no autoselection for NeXT.
Emit NeXT OBJC_IMAGE_INFO marker.
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- Maps to LangOptions.Exceptions
- Currently always off, should autoselect based on language.
Update CodeGen to set unwind attribute on functions definitions based
on LangOptions.Exceptions.
- Still need to set attributes appropriately on calls.
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- Drop Expr.h,RecordLayout.h from ASTContext.h (for DeclBase.h and
SourceLocation.h)
- Move ASTContext constructor into implementation
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* Move FormatError() from TextDiagnostic up to DiagClient, remove now
empty class TextDiagnostic
* Make DiagClient optional for Diagnostic
This fixes the following problems:
* -html-diags (and probably others) does now output the same set of
warnings as console clang does
* nothing crashes if one forgets to call setHeaderSearch() on
TextDiagnostic
* some code duplication is removed
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This happened because seralization was done in the constructor, and at that time the TranslationUnit is no longer valid.
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The motivation is that clients may either:
(a) query the ASTConsumer object after AST parsing to collect data/etc.
(b) reuse the ASTConsumer.
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While this is a safe rewriter fix, there is still a need for some discussion (see report for more info).
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- ActOnDeclarator now takes an additional parameter which is the
AsmLabel if used. Its unfortunate that this bubbles up this high,
but we cannot just lump it in as an attribute without mistakenly
*accepting* it as an attribute.
- The actual asm-label itself is, however, encoded as an AsmLabelAttr
on the FunctionDecl.
- Slightly improved parser error recovery on malformed asm-labels.
- CodeGen support still missing...
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- Just added prints for all the action functions. Ideally this would
be extended to print all the information for the actions.
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This fixes a critical rewriter bug (<rdar://problem/6096760> clang ObjC rewriter: 'self' not expected value in class method called with 'super').
Also added a couple FIXME's since I'm not happy with my fix to Sema. It would be nicer if the super handling for class/instance messages was the same (based on PreDefinedExpr).
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- Make sure ObjCIvarDecl propagates the bitfield width.
- RewriteObjC::SynthesizeIvarOffsetComputation(): Avoid using the __OFFSETOF__ mumbo jumbo for bitfields (since it isn't legal C). This fixes <rdar://problem/5986079> clang ObjC rewriter: bitfields and ivar access don't mix.
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This fixes <rdar://problem/6034961> clang ObjC rewriter: rewriting methods with function pointer return values does not work
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clang.cpp now #include these definitions to create the command line options, and
AnalysisConsumer #includes this file to generate the switch statement to create
actions.
Renamed -check-objc-methodsigs to -warn-objc-methodsigs.
The "missing -dealloc" check is now optional: -warn-objc-missing-dealloc
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ObjCImplementationDecls and sees if a ancestor class defines a method with the
same selector but with a different type signature. Right now it just compares
return types, and mainly looks at differences in primitive values. The checking
will be expanded in the future.
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Split BugReporter into BugReporter and GRBugReporter so checkers not based on GRExprEngine can still use the BugReporter mechanism.
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This allows an optimization in AnalysisConsumer where the same LiveVariables information is used between multiple analyses.
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Modified the DeadStores logic in AnalysisConsumer.cpp to use the LiveVariables object created by the AnalysisManager.
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Renamed -dump-cfg to -cfg-dump, and -view-cfg to -cfg-view. This naming better matches the same options for asts (e.g. -ast-dump).
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analyses. This potentially is the primordial origins of a Clang-equivalent
"PassManager".
The new AnalysisConsumer interface allows multiple analyses to be run from a
single invocation of Clang.
Migrated the logic of "-warn-dead-stores" and "-warn-uninit-values" to use the
new AnalysisConsumer interface. The new interface results in a significant code
reduction to incorporate an analysis into the Driver.
Updated a test case to (correctly) acknowledge that it contains a dead store
(this check wasn't being performed because it was previously masked by
-warn-uninit-values).
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'There's not much to say about this patch, it just adds the Arch Linux
gcc 4.3.1 header paths for i686 and amd64. The patch was generated
using "svn diff" with clang at revision 52660. The paths aren't
distribution-specific, so they should work for all Linux distributions
using the default(?) names like "i686-pc-linux-gnu".'
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TranslationUnit object instead of an ASTContext. By default it calls
Initialize(ASTConstext& Context) (to match with the current interface used by
most ASTConsumers).
Modified the ObjC-Rewriter to use InitializeTU, and to tell the TranslationUnit
to not free its Decls. This is a workaround for: <rdar://problem/5966749>
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This fix involved tightening up needToScanForQualifiers(), which predated ObjCQualifiedIdType.
It also includes a minor tweak to the code that searches for the beginning of the qualified type. If the AST contained the correct beginning of the declaration (i.e. the beginning of the declaration specifiers), this code would be more robust. Since it doesn't, we apply an adhoc heuristic. Note that DeclSpec contains this info...we just don't propagate it to the AST (at present).
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essentially that we were destroying the declarations twice.
(Note that we don't use -serialize directly in the testsuite, only
SerializeTest.)
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macros but doesn't expand #includes, remove comments, remove #defines
etc.
For example:
----
#include <stdio.h>
#define bbaa
#define funclike(x) x "a" x "b" x
bbaa bbaa
#if 1
funclike("gar")
foo /*blah*/ bar
bar
#endif
#if 0
funclike()
#endif
----
rewrites to:
----
#include <stdio.h>
#define bbaa
#define funclike(x) x "a" x "b" x
/*bbaa bbaa*/
#if 1
"gar" "a" "gar" "b" "gar"/*funclike*//*("gar")*/
foo /*blah*/ bar
bar
#endif
#if 0
/*funclike()*/
#endif
----
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pedantic error. Perhaps I should add a class of 'extension' that is
'extension that warns by default', which would be cleaner.
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when it is constructed via deserialization. This is done by recording a flag
indicating that this is the case, and it deletes these objects by getting
the references stored in the ASTContext object. This fixes some memory
leaks that occurs when we deserialize translation units from bitcode files.
The rationale between having TranslationUnit sometimes own these objects and
sometimes not is that a TranslationUnit object can be constructed from
state generated by the parser (Preprocessor; semantic analyzer, etc.), and thus
in these cases won't own the IdentifierTable or Selectors, etc. During
deserialization, there is no Preprocessor, so somebody needs to own these
objects in order for them to be properly reclaimed.
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them to not be stack-allocated.
HTMLDiagnostics now batches PathDiagnostics before emitting HTML in its dtor.
This is a workaround for a problem when we trampled the Preprocessor state
when highlighting macros (sometimes resulting in an assertion failure).
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Daniel Dunbar
Steve Naroff
Chris Lattner
Ted Kremenek
Argyrios Kyrtzidis
Douglas Gregor
Nico Weber
Zhongxing Xu
Matthijs Kooijman
Nuno Lopes
Eli Friedman
Dan Gohman
Sanjiv Gupta
Fariborz Jahanian