instantiations when we have the corresponding macro definition and by
removing macro definition information from our table when the macro is
undefined.
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record (which includes all macro instantiations and definitions). As
with all lay deserialization, this introduces a new external source
(here, an external preprocessing record source) that loads all of the
preprocessed entities prior to iterating over the entities.
The preprocessing record is an optional part of the precompiled header
that is disabled by default (enabled with
-detailed-preprocessing-record). When the preprocessor given to the
PCH writer has a preprocessing record, that record is written into the
PCH file. When the PCH reader is given a PCH file that contains a
preprocessing record, it will be lazily loaded (which, effectively,
implicitly adds -detailed-preprocessing-record). This is the first
case where we have sections of the precompiled header that are
added/removed based on a compilation flag, which is
unfortunate. However, this data consumes ~550k in the PCH file for
Cocoa.h (out of ~9.9MB), and there is a non-trivial cost to gathering
this detailed preprocessing information, so it's too expensive to turn
on by default. In the future, we should investigate a better encoding
of this information.
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deserialization of precompiled headers, where the deserialization of
the source location entry for a buffer (e.g., macro instantiation
scratch space) would overwrite a one-element FileID cache in the
source manager. When tickled at the wrong time, we would return the
wrong decomposed source location and eventually cause c-index-test to
crash.
Found by dumb luck. It's amazing this hasn't shown up before.
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definitions) as part of the translation unit, so that normal
visitation, token-annotation, and cursor-at retrieval all see
preprocessing elements.
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--- Reverse-merging r98907 into '.':
D test/Index/c-index-getCursor-pp.c
U tools/CIndex/CIndex.cpp
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definitions) as part of the translation unit, so that normal
visitation, token-annotation, and cursor-at retrieval all see
preprocessing elements.
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preprocessing record. Use that link with clang_getCursorReferenced()
and clang_getCursorDefinition() to match instantiations of a macro to
the definition of the macro.
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the macro definitions and macro instantiations that are found
during preprocessing. Preprocessing records are *not* generated by
default; rather, we provide a PPCallbacks subclass that hooks into the
existing callback mechanism to record this activity.
The only client of preprocessing records is CIndex, which keeps track
of macro definitions and instantations so that they can be exposed via
cursors. At present, only token annotation uses these facilities, and
only for macro instantiations; both will change in the near
future. However, with this change, token annotation properly annotates
macro instantiations that do not produce any tokens and instantiations
of macros that are later undef'd, improving our consistency.
Preprocessing directives that are not macro definitions are still
handled by clang_annotateTokens() via re-lexing, so that we don't have
to track every preprocessing directive in the preprocessing record.
Performance impact of preprocessing records is still TBD, although it
is limited to CIndex and therefore out of the path of the main compiler.
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directives while annotating tokens in CIndex. This functionality
should probably be factored out of this routine, but we're not there
yet.
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therefore not creating ElaboratedTypes, which are still pretty-printed
with the written tag).
Most of these testcase changes were done by script, so don't feel too
sorry for my fingers.
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Objective-C method declaration, e.g., for
- (Foo *)myMethod;
we now have TypeSourceInfo for the Foo*.
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end-of-line source location when given a column number beyond the
length of the line, or an end-of-file source location when given a
line number beyond the length of the file. Previously, we would return
an invalid location.
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and the c-index-test executable end up getting different copies of
stderr, causing non-deterministic ordering of output. Fixed by
flushing the file after printing a diagnostic (only on Windows).
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before the selector name (but after the return type). Among other things,
this allows IBAction to be implemented with an attribute.
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knobs to control formatting. Eventually, I'd like to merge the
implementation of this code with the TextDiagnosticPrinter, so that
it's easy for CIndex clients to produce beautiful diagnostics like the
clang compiler does.
Use this new function to display diagnostics within c-index-test.
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we attach diagnostics to translation units and code-completion
results, so they can be queried at any time.
To facilitate this, the new StoredDiagnostic class stores a diagnostic
in a serializable/deserializable form, and ASTUnit knows how to
capture diagnostics in this stored form. CIndex's CXDiagnostic is a
thin wrapper around StoredDiagnostic, providing a C interface to
stored or de-serialized diagnostics.
I've XFAIL'd one test case temporarily, because currently we end up
storing diagnostics in an ASTUnit that's never returned to the user
(because it contains errors). I'll introduce a temporary fix for this
soon; the real fix will be to allow us to return and query invalid ASTs.
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dyncast is just due to \r\n newline interaction w/ regexps. The remap-load.c
failure is a bit stranger (the end of the extent is on the next line), but I
don't care to investigate.
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and fix-it information, so we can see everything in one place. Along
the way, fix a few bugs with deserialization and query of diagnostics
in CIndex.
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so that CIndex can report diagnostics through the normal mechanisms
even when executing Clang in a separate process. This applies both
when performing code completion and when using ASTs as an intermediary
for clang_createTranslationUnitFromSourceFile().
The serialized format is not perfect at the moment, because it does
not encapsulate macro-instantiation information. Instead, it maps all
source locations back to the instantiation location. However, it does
maintain source-range and fix-it information. To get perfect fidelity
from the serialized format would require serializing a large chunk of
the source manager; at present, it isn't clear if this code will live
long enough for that to matter.
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string when given a cursor that does not have a name. Also, don't give
silly names for statements and non-reference expressions.
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the tag kind (union, struct, class, enum) over to the name of the tag,
if there is a name, since most clients want to point at the name.
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condition even when we've visited the condition variable, so that
we'll see implicit conversions there.
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Douglas Gregor
Bob Wilson
John McCall
Ted Kremenek
Daniel Dunbar
Benjamin Kramer
Chris Lattner