The problem was that text files were open in text mode and Microsoft implementation of fread and write will try to do nasty line-feed conversion which make the line position no longer valid. The fix is to read and write files in binary mode.
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clang_codeCompleteAt(). This uncovered a few issues with the latter:
- ASTUnit wasn't saving/restoring diagnostic state appropriately between
reparses and code completions.
- "Overload" completions weren't being passed through to the client
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improvements to the compiler and the introduction of crash recovery,
it no longer makes sense to allow this mode. Moreover, this eliminates
one use of the "clang" executable from within libclang; we'd like them
all to go away.
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produces a simple "display" name that captures the
arguments/parameters for a function, function template, class
template, or class template specialization.
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ensure we at least get some minimal testing of running in a multithreaded
environment (for example, having a reduced stack size).
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I will not mix declaration and statements in C90.
I will not mix declaration and statements in C90.
I will not mix declaration and statements in C90.
I will not mix declaration and statements in C90.
I will not mix declaration and statements in C90.
I will not mix declaration and statements in C90.
I will not mix declaration and statements in C90.
I will not mix declaration and statements in C90.
I will not mix declaration and statements in C90.
I will not mix declaration and statements in C90.
I will not mix declaration and statements in C90.
I will not mix declaration and statements in C90.
I will not mix declaration and statements in C90.
I will not mix declaration and statements in C90.
I will not mix declaration and statements in C90.
I will not mix declaration and statements in C90.
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to an "overloaded" set of declarations. This cursor kind works for
unresolved references to functions/templates (e.g., a call within a
template), using declarations, and Objective-C class and protocol
forward declarations.
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clang_getSpecializedCursorTemplate(), which determines the template
(or member thereof) that the given cursor specializes or from which it
was instantiated. This routine can be used to establish a link between
templates and their instantiations/specializations.
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into the clients, e.g., the printing code-completion consumer and
c-index-test. Clients may want to re-sort the results anyway.
Provide a libclang function that sorts the results.
3rd try. How embarrassing.
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into the clients, e.g., the printing code-completion consumer and
c-index-test. Clients may want to re-sort the results anyway.
Provide a libclang function that sorts the results.
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into the clients, e.g., the printing code-completion consumer and
c-index-test. Clients may want to re-sort the results anyway.
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of a cursor or code-completion result, e.g., whether that result
refers to an unavailable, deleted, or deprecated declaration.
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when the CXTranslationUnit_CacheCompletionResults option is given to
clang_parseTranslationUnit(). Essentially, we compute code-completion
results for macro definitions after we have parsed the file, then
store an ASTContext-agnostic version of those results (completion
string, cursor kind, priority, and active contexts) in the
ASTUnit. When performing code completion in that ASTUnit, we splice
the macro definition results into the results provided by the actual
code-completion (which has had macros turned off) before libclang gets
those results. We use completion context information to only splice in
those results that make sense for that context.
With a completion involving all of the macros from Cocoa.h and a few other
system libraries (totally ~8500 macro definitions) living in a
precompiled header, we get about a 9% performance improvement from
code completion, since we no longer have to deserialize all of the
macro definitions from the precompiled header.
Note that macro definitions are merely the canary; the cache is
designed to also support other top-level declarations, which should be
a bigger performance win. That optimization will be next.
Note also that there is no mechanism for determining when to throw
away the cache and recompute its contents.
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clang_reparseTranslationUnit(), along with a function to retrieve the
default recommended reparsing options for a translation unit.
Also, add the CXTranslationUnit_CacheCompletionResults flag, which is
also currently unused.
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"editing" mode, introduce a separate function
clang_defaultEditingTranslationUnitOptions() that retrieves the set of
options. No functionality change.
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flags enumeration + default-generating function that allows
code-completion to be customized via the libclang API.
Plus, turn on spell-checking when performing code completion.
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completion within the translation unit using the same command-line
arguments for parsing the translation unit. Eventually, we'll reuse
the precompiled preamble to improve code-completion performance, and
this also gives us a place to cache results.
Expose this function via the new libclang function
clang_codeCompleteAt(), which performs the code completion within a
CXTranslationUnit. The completion occurs in-process
(clang_codeCompletion() runs code completion out-of-process).
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interaction, by effectively defaulting to
DISABLE_SMART_POINTERS. We're embracing the model where all AST nodes
are ASTContext-allocated and live as long as the ASTContext lives.
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reparses an already-parsed translation unit. At the moment it's just a
convenience function, but we hope to use it for performance
optimizations.
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Clang's representation of the C type system to clients. It is nowhere near complete, and will
be expanded on demand.
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and we now include the file name that declares the symbol with no linkage in the USR.
USRs for such symbols are generated only in restructed cases, e.g., anonymous enum declarations,
typedefs, etc.
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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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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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diagnostic callback mechanism, so all diagnostics now go through that
callback. Also, eliminate the displayDiagnostics flag to
clang_createIndex(), since it is no longer necessary: the client
determines whether to display diagnostics or not.
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clients can format diagnostics as they wish rather than having to
parse standard error. All of the important parts of the front end's
diagnostics are exposed: text, severity, location, source ranges, and
fix-its. The diagnostics callback is now available with
clang_createTranslationUnitFromSource() and
clang_createTranslationUnit().
As part of this change, CXSourceLocation and CXSourceRange got one
pointer larger, since we need to hold on to the SourceManager and
LangOptions structures in the source location. This is the minimum
amount of information needed for the functions that operate on source
locations and ranges (as implemented now). Previously we held on to
the ASTContext, but the diagnostics callback can end up with source
locations when there is no ASTContext (or preprocessor).
Still to do:
- Code completion needs to support the diagnostics callback, once we
have the ability to (de-)serialize diagnostics.
- Eliminate the "displayDiagnostics" argument to createIndex; we'll
always pass diagnostics to the callback and let it deal with display.
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utility of this change will be made clearer in a subsequent patch when
perform_test_load()' does more than stream the AST.
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- Added more routines to manipulate/compare source locations and ranges
- Switched clang_getCursor() over to take a CXSourceLocation rather
than file/line/column.
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opaque data structures accessed through the new functions
clang_getInstantiationLocation(), clang_getRangeStart(), and
clang_getRangeEnd(). The new API permits later extensions to introduce
new functions to allow CIndex clients to walk macro instantiations, if
we ever care.
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CIndex functions that (1) map from a reference or declaration to the
corresponding definition, if available, and (2) determine whether a
given declaration cursor is also a definition. This eliminates a lot
of duplication in the cursor kinds, and maps more closely to the Clang
ASTs.
This is another API + ABI breaker with no deprecation. Yay, progress.
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cursor itself. In particular, for references this returns the source
range of the reference rather than the source range of the thing it
refers to.
Switch c-index-test from clang_getDeclExtent (which will eventually be
deprecated and removed) over to clang_getCursorExtent. The source
ranges we print for references now make sense; fix up the tests
appropriately.
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clang_getCursorLine(), clang_getCursorColumn(),
clang_getCursorSource(), and clang_getCursorSourceFile(). Mark those 4
functions as deprecated and stop using them ourselves.
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Renamed CXSourceFileLine to CXSourceLocation and added a CXFile, to
better match Clang's SourceLocation. Teach clang_getDeclExtent to fill
in the CXFile properly.
Renamed CXSourceExtent to CXSourceRange, to better match Clang's
SourceLocation.
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to directly check the results of clang_getCursor(). Also, start
migrating some index-test tests over to c-index test [*] and some
grep-using tests over to FileCheck.
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C++ grammatical constructs that show up in top-level (namespace-level)
declarations, member declarations, template declarations, statements,
expressions, conditions, etc. For example, we now provide a pattern
for
static_cast<type>(expr)
when we can have an expression, or
using namespace identifier;
when we can have a using directive.
Also, improves the results of code completion at the beginning of a
top-level declaration. Previously, we would see value names (function
names, global variables, etc.); now we see types, namespace names,
etc., but no values.
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the heap, so that clients are not forced to copy the results during
the initial iteration. A separate clang_disposeCodeCompleteResults
function frees the returned results.
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- This is much faster, as it avoids the overhead of dumping an AST file to disk and reloading it.
- For debugging purposes, there is a clang_setUseExternalASTGeneration hook which can be used to disable this.
On the Sketch Cocoa app, the speedup is pretty nice, especially when using a PCH file while scanning the source:
Wall time to c-index-test all files (no PCH):
Old: 23.4221
New: 12.3884
Wall time to c-index-test all files (with a PCH, and "local" mode):
Old: 10.9233
New: 1.9038
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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?
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This abstraction will help us manage string memory for complex names that cross the C++/C boundary (e.g. ObjC methods, selectors). This patch also uses it in clang_getTranslationUnitSpelling (which I'm not sure is necessary). Will investigate later...since the extra malloc() can't hurt (for now).
Patch by John Thompson.
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- Provide an actual test for code-completion via CIndex.
- Actually print optional strings in c-index-test
- Export clang_getCompletionChunkCompletionString from CIndex
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- Introduce more code-completion string "chunk" kinds that describe
symbols, the actual text that the user is expected to type, etc.
- Make the generation of macro results optional, since it can be
slow
- Make code-completion accessible through the C API, marshalling the
code-completion results through a temporary file (ick) to maintain
process separation.
The last doesn't have tests yet.
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Localize the optimization to ResolveLocationInAST(). The last valid AST location is now stored with ASTUnit. There still isn't optimal, however it's an improvement (with a much cleaner API). Having the client manage an "hint" is error prone and complex.
I wanted to land the major changes before finishing up the optimizations.
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- Remove clang_wantOnlyLocalDeclarations().
- Remove 'displayDiagnostics' arguments to clang_createTranslationUnitFromSourceFile() and clang_createTranslationUnit().
- Have clang_createTranslationUnitFromSourceFile() strip the '-o <outfile>' command line arguments if they exist. Document this semantic in the header. Also verify we have a valid ASTUnit before telling it to 'unlinkTemporaryFile()'.
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clang_createTranslationUnit() and clang_createTranslationUnitFromSourceFile(). The user can now
specify if the diagnostics from Clang are printed to stderr or are silenced completely. We can
obviously evolve this API to be more general in the future.
Note: Added a FIXME since I wasn't certain what was the best way to redirect to something analogous
to '/dev/null' on Windows.
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substantive change is that clang_getCursorSource() now returns the
file in which a macro was instantiated when the cursor points into a
macro instantiation, rather than crashing.
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header or not via a new "PCHLevel" field in Decl. We currently use
this information to help CIndex filter out declarations that came from
a precompiled header (rather than from an AST file). Further down the
road, it can be used to help implement multi-level precompiled
headers.
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Fix clang_getCursorDecl to do the right thing for expr refs
Fixup test file to accommodate new output (which includes the line/column for the referenced decl)
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Implement clang_getCursor() - wired up to Argiris's work.
Implement callbacks for CXCursor_ObjCProtocolRef.
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- Traverse category methods, add a "class ref" and make the little test harness a bit more flexible.
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Ted Kremenek