A 'remark' is information that is not an error or a warning, but rather some
additional information provided to the user. In contrast to a 'note' a 'remark'
is an independent diagnostic, whereas a 'note' always depends on another
diagnostic.
A typical use case for remark nodes is information provided to the user, e.g.
information provided by the vectorizer about loops that have been vectorized.
This patch provides the initial implementation of 'remarks'. It includes the
actual definiton of the remark nodes, their printing as well as basic parameter
handling. We are reusing the existing diagnostic parameters which means a remark
can be enabled with normal '-Wdiagnostic-name' flags and can be upgraded to
an error using '-Werror=diagnostic-name'. '-Werror' alone does not upgrade
remarks.
This patch is by intention minimal in terms of parameter handling. More
experience and more discussions will most likely lead to further enhancements
in the parameter handling.
llvm-svn: 202475
clang_Type_getTemplateArgument
Note that these functions don't handle variadic templates -- see tests.
Patch by Matthieu Nottale and Philippe Daouadi.
llvm-svn: 202406
This commit improves libclang to report the error condition when
CXTranslationUnit can not be created because of a stale PCH file. This allows
the caller, for example, to rebuild the PCH file and retry the request.
There two are APIs in libclang that return a CXTranslationUnit and don't
support reporting detailed errors (the only error condition is a NULL result).
For these APIs, a second, superior, version is introduced --
clang_createTranslationUnit2 and clang_parseTranslationUnit2. These functions
return a CXTranslationUnit indirectly and also return an error code. Old
functions are still supported and are nothing more than convenience wrappers
that ignore extended error codes.
As a cleanup, this commit also categorizes some libclang errors in the
functions I had to modify anyway.
llvm-svn: 201249
the build
When Clang loads the module, it verifies the user source files that the module
was built from. If any file was changed, the module is rebuilt. There are two
problems with this:
1. correctness: we don't verify system files (there are too many of them, and
stat'ing all of them would take a lot of time);
2. performance: the same module file is verified again and again during a
single build.
This change allows the build system to optimize source file verification. The
idea is based on the fact that while the project is being built, the source
files don't change. This allows us to verify the module only once during a
single build session. The build system passes a flag,
-fbuild-session-timestamp=, to inform Clang of the time when the build started.
The build system also requests to enable this feature by passing
-fmodules-validate-once-per-build-session. If these flags are not passed, the
behavior is not changed. When Clang verifies the module the first time, it
writes out a timestamp file. Then, when Clang loads the module the second
time, it finds a timestamp file, so it can compare the verification timestamp
of the module with the time when the build started. If the verification
timestamp is too old, the module is verified again, and the timestamp file is
updated.
llvm-svn: 201224
-Wdocumentation won't seek -isystem. LIBXML2's headers in a certain distro might be incompatible to -Wdocumentation.
FIXME: Could autoconf detect clang or availability of -isystem?
llvm-svn: 185927
The big changes are:
- Deleting Driver/(Arg|Opt)*
- Rewriting includes to llvm/Option/ and re-sorting
- 'using namespace llvm::opt' in clang::driver
- Fixing the autoconf build by adding option everywhere
As discussed in the review, this change includes using directives in
header files. I'll make follow up changes to remove those in favor of
name specifiers.
Reviewers: espindola
Differential Revision: http://llvm-reviews.chandlerc.com/D975
llvm-svn: 183989
This allows resolving top-header filenames of modules to FileEntries when
we need them, not eagerly.
Note that that this breaks ABI for libclang functions
clang_Module_getTopLevelHeader / clang_Module_getNumTopLevelHeaders
but this is fine because they are experimental and not widely used yet.
llvm-svn: 176975
It passes to the visitor, that the caller provides, CXCursor_InclusionDirective cursors for
all the include directives in a particular file.
llvm-svn: 176682
that were already parsed in the same "indexing session".
An indexing session is defined as using the same CXIndexAction object
for multiple clang_indexSourceFile calls.
Passing CXIndexOpt_SkipParsedBodiesInSession as an indexing option will
enable the mode where we try to skip bodies that were already parsed in
another translation unit.
If a function's body was skipped, the "flags" field in the CXIdxDeclInfo
structure will have "CXIdxDeclFlag_Skipped" bit was set.
llvm-svn: 169539
MSVC supports only C89, so it is important to keep c-index-test.c
buildable with C89. However, Clang defaults to C99, so while building
Clang with Clang one can introduce C99 constructs into c-index-test.c
without noticing.
Thanks to Nakamura Takumi for helping with MSVC bits.
llvm-svn: 167561
Richard Smith