UnresolvedLookupExpr and UnresolvedMemberExpr.
Also, improve the computation that checks whether the base of a member
expression (either unresolved or dependent-scoped) is implicit. The
previous check didn't cover all of the cases we use in our
representation, which threw off source-location information for these
expressions (which, in turn, caused some breakage in libclang's token
annotation).
llvm-svn: 126681
CXXDependentScopeMemberExpr, and clean up instantiation of
nested-name-specifiers with dependent template specialization types in
the process.
llvm-svn: 126663
UnresolvedUsingValueDecl to use NestedNameSpecifierLoc rather than the
extremely-lossy NestedNameSpecifier/SourceRange pair it used to use,
improving source-location information.
Various infrastructure updates to support NestedNameSpecifierLoc:
- AST/PCH (de-)serialization
- Recursive AST visitor
- libclang traversal (including the first tests of this
functionality)
llvm-svn: 126459
way it keeps track of namespaces. Previously, we would map from the
namespace alias to its underlying namespace when building a
nested-name-specifier, losing source information in the process.
llvm-svn: 126358
This removes the final dependency edge from any lib outside of CodeGen
to core. As a result we can, and do, trim the dependency on core
from libclang, PrintFunctionNames, the unit tests and c-index-test.
While at it, review and trim other unneeded dependencies.
llvm-svn: 125820
class and to bind the shared value using OpaqueValueExpr. This fixes an
unnoticed problem with deserialization of these expressions where the
deserialized form would lose the vital pointer-equality trait; or rather,
it fixes it because this patch also does the right thing for deserializing
OVEs.
Change OVEs to not be a "temporary object" in the sense that copy elision is
permitted.
This new representation is not totally unawkward to work with, but I think
that's really part and parcel with the semantics we're modelling here. In
particular, it's much easier to fix things like the copy elision bug and to
make the CFG look right.
I've tried to update the analyzer to deal with this in at least some
obvious cases, and I think we get a much better CFG out, but the printing
of OpaqueValueExprs probably needs some work.
llvm-svn: 125744
LabelDecl and LabelStmt. There is a 1-1 correspondence between the
two, but this simplifies a bunch of code by itself. This is because
labels are the only place where we previously had references to random
other statements, causing grief for AST serialization and other stuff.
This does cause one regression (attr(unused) doesn't silence unused
label warnings) which I'll address next.
This does fix some minor bugs:
1. "The only valid attribute " diagnostic was capitalized.
2. Various diagnostics printed as ''labelname'' instead of 'labelname'
3. This reduces duplication of label checking between functions and blocks.
Review appreciated, particularly for the cindex and template bits.
llvm-svn: 125733
code-completion results accessed via libclang, to extend the lifetime
of the allocator used for cached global code-completion results at
least until these completion results are destroyed. Fixes
<rdar://problem/8997369>.
llvm-svn: 125678
there were only three virtual methods of any significance.
The primary way to grab child iterators now is with
Stmt::child_range children();
Stmt::const_child_range children() const;
where a child_range is just a std::pair of iterators suitable for
being llvm::tie'd to some locals. I've left the old child_begin()
and child_end() accessors in place, but it's probably a substantial
penalty to grab the iterators individually now, since the
switch-based dispatch is kindof inherently slower than vtable
dispatch. Grabbing them together is probably a slight win over the
status quo, although of course we could've achieved that with vtables, too.
I also reclassified SwitchCase (correctly) as an abstract Stmt
class, which (as the first such class that wasn't an Expr subclass)
required some fiddling in a few places.
There are somewhat gross metaprogramming hooks in place to ensure
that new statements/expressions continue to implement
getSourceRange() and children(). I had to work around a recent clang
bug; dgregor actually fixed it already, but I didn't want to
introduce a selfhosting dependency on ToT.
llvm-svn: 125183
whose inode has changed since the file was first created and that is
being seen through a different path name (e.g., due to symlinks or
relative path elements), such that its FileEntry pointer doesn't match
a known FileEntry pointer. Since this requires a system call (to
stat()), we only perform this deeper checking if we can't find the
file by comparing FileEntry pointers.
Also, add a micro-optimization where we don't bother to compute line
numbers when given the location (1, 1). This improves the
efficiency of clang_getLocationForOffset().
llvm-svn: 124800
BumpPtrAllocator, rather than manually new/delete'ing them. This
optimization also allows us to avoid allocating memory for and copying
constant strings (e.g., "return", "class").
This also required embedding the priority and availability of results
within the code completion string, to avoid extra memory allocation
within libclang.
llvm-svn: 124673
clang_getDeclObjCTypeEncoding(); use ASTContext's methods instead,
which will (lazily) create the type as needed. Otherwise, we can end
up with null QualTypes.
llvm-svn: 124133
template template parameter pack that cannot be fully expanded because
its enclosing pack expansion could not be expanded. This form of
TemplateName plays the same role as SubstTemplateTypeParmPackType and
SubstNonTypeTemplateParmPackExpr do for template type parameter packs
and non-type template parameter packs, respectively.
We should now handle these multi-level pack expansion substitutions
anywhere. The largest remaining gap in our variadic-templates support
is that we cannot cope with non-type template parameter packs whose
type is a pack expansion.
llvm-svn: 123521
that captures the substitution of a non-type template argument pack
for a non-type template parameter pack within a pack expansion that
cannot be fully expanded. This follows the approach taken by
SubstTemplateTypeParmPackType.
llvm-svn: 123506
expansions with something that is easier to use correctly: a new
template argment kind, rather than a bit on an existing kind. Update
all of the switch statements that deal with template arguments, fixing
a few latent bugs in the process. I"m happy with this representation,
now.
And, oh look! Template instantiation and deduction work for template
template argument pack expansions.
llvm-svn: 122896
template argument (described by an expression, of course). For
example:
template<int...> struct int_tuple { };
template<int ...Values>
struct square {
typedef int_tuple<(Values*Values)...> type;
};
It also lays the foundation for pack expansions in an initializer-list.
llvm-svn: 122751
16-bits in size. Implement this by splitting WChar into two enums, like we have
for char. This fixes a miscompmilation of XULRunner, PR8856.
llvm-svn: 122558
take into account the region of interest. Otherwise, we may fail to
traverse some important preprocessed entity cursors.
Fixes <rdar://problem/8554072>.
llvm-svn: 122350
clang_getCursorLexicalParent() to cope with class and function
templates, along with the parent of the translation unit. Fixes PR8761
and PR8766.
llvm-svn: 122324
area of printing template arguments. The functionality changes here
are limited to cases of variadic templates that aren't yet enabled.
llvm-svn: 122250
pack expansions, e.g. given
template<typename... Types> struct tuple;
template<typename... Types>
struct tuple_of_refs {
typedef tuple<Types&...> types;
};
the type of the "types" typedef is a PackExpansionType whose pattern
is Types&.
This commit introduces support for creating pack expansions for
template type arguments, as above, but not for any other kind of pack
expansion, nor for any form of instantiation.
llvm-svn: 122223
common base for ExtQuals and Type that stores the underlying type
pointer. This results in a 2% performance win for -emit-llvm on a
typical C file, with 1% memory growth in the AST.
Note that there is an API change in this optimization:
QualType::getTypePtr() can no longer be invoked on a NULL
QualType. If the QualType might be NULL, use
QualType::getTypePtrOrNull(). I've audited all uses of getTypePtr() in
the code base and changed the appropriate uses over to
getTypePtrOrNull().
A future optimization opportunity would be to distinguish between
cast/dyn_cast and cast_or_null/dyn_cast_or_null; for the former, we
could use getTypePtr() rather than getTypePtrOrNull(), to take another
branch out of the cast/dyn_cast implementation.
llvm-svn: 121489
struct X {
X() : au_i1(123) {}
union {
int au_i1;
float au_f1;
};
};
clang will now deal with au_i1 explicitly as an IndirectFieldDecl.
llvm-svn: 120900
trap the serialized preprocessing records (macro definitions, macro
instantiations, macro definitions) from the generation of the
precompiled preamble, then replay those when walking the list of
preprocessed entities. This eliminates a bug where clang_getCursor()
wasn't able to find preprocessed-entity cursors in the preamble.
llvm-svn: 120396
FileSystemOpts through a ton of apis, simplifying a lot of code.
This also fixes a latent bug in ASTUnit where it would invoke
methods on FileManager without creating one in some code paths
in cindextext.
llvm-svn: 120010
-Move the stuff of Diagnostic related to creating/querying diagnostic IDs into a new DiagnosticIDs class.
-DiagnosticIDs can be shared among multiple Diagnostics for multiple translation units.
-The rest of the state in Diagnostic object is considered related and tied to one translation unit.
-Have Diagnostic point to the SourceManager that is related with. Diagnostic can now accept just a
SourceLocation instead of a FullSourceLoc.
-Reflect the changes to various interfaces.
llvm-svn: 119730
an implicit "this"; it causes clang_getCursor() to find the implicit
"this" expression (which isn't written in the source!) rather than the
actual member.
llvm-svn: 119516
interest (e.g., as used by clang_getCursor()), count the
decl-specifier-seq as part of the source range, as we do for
clang_annotateTokens(). Makes clang_getCursor() work properly for the
result types of functions, for example.
llvm-svn: 119514
we were just getting a range covering only the property name, which is
certainly not correct (and broke token annotation, among other
things).
Also, teach libclang about the relationship between
@synthesize/@dynamic and @property, so we get property name and
cursor-reference information for @synthesize and @dynamic.
llvm-svn: 119409
for the backing of generated USRs. This optmizes
for the case when a client generates a sequence
of USRs in sequence, disposing of them soon
after generating them. By using a string buffer,
we recycle malloc'ed memory instead of constantly
malloc'ing and copying strings.
llvm-svn: 119338
but to wrap both an ASTUnit and a "string pool"
that will be used for fast USR generation.
This requires a bunch of mechanical changes, as
there was a ton of code that assumed that CXTranslationUnit
and ASTUnit* were the same.
Along with this change, introduce CXStringBuf,
which provides an llvm::SmallVector<char> backing
for repeatedly generating CXStrings without a huge
amount of malloc() traffic. This requires making
some changes to the representation of CXString
by renaming a few fields (but keeping the size
of the object the same).
llvm-svn: 119337
the Stmt* visitation in CursorVisitor to be
data-recursive.
Since AnnotationTokensWorker explicitly calls
CursorVisitor::VisitChildren(), it essentially
transforms the data-recursive algorithm in
CursorVisitor back into a non-data recursive one.
This is particularly bad because the data-recursive
algorithm uses more stack space per stack frame,
which can cause us to blow the stack in some cases.
"Fix" this by making the stack that AnnotationTokensWorker
runs in really huge. The real fix is to modify
AnnotationTokensWorker not to do the explicit
recursive call.
llvm-svn: 119047
is gradually becoming more data recursive, AnnotateTokensVisitor does its own recursive call
within the visitor that can still blow out the stack. This can potentially be reworked to avoid this,
but for now just do token annotation on a separate thread.
llvm-svn: 118783
diagnostic-capturing client lives as long as the ASTUnit itself
does. Otherwise, we can end up with crashes when we get a diagnostic
outside of parsing/code completion. The circumstances under which this
happen are really hard to reproduce, because a file needs to change
from under us.
llvm-svn: 118751
location where we're spelling a token even within a
macro. clang_getInstantiationLocation() tells where we instantiated
the macro.
I'm still not thrilled with the CXSourceLocation/CXSourceRange APIs,
since they gloss over macro-instantiation information.
Take 2: this time, adjusted tests appropriately and used a "simple"
approach to the spelling location.
llvm-svn: 118495
location where we're spelling a token even within a
macro. clang_getInstantiationLocation() tells where we instantiated
the macro.
I'm still not thrilled with the CXSourceLocation/CXSourceRange APIs,
since they gloss over macro-instantiation information.
llvm-svn: 118492
to deeply nested BinaryOperators. This is done by turning the explicit recursion into being data recursive.
Fixes: <rdar://problem/8289205>
llvm-svn: 118444
abstractions (e.g., TemplateArgumentListBuilder) that were designed to
support variadic templates. Only a few remnants of variadic templates
remain, in the parser (parsing template type parameter packs), AST
(template type parameter pack bits and TemplateArgument::Pack), and
Sema; these are expected to be used in a future implementation of
variadic templates.
But don't get too excited about that happening now.
llvm-svn: 118385
CXXConstructorExpr/CXXTemporaryObjectExpr references the constructor
it calls. Then, tweak clang_getCursor() to prefer such a call over a
type reference to the type being called.
llvm-svn: 118297
When -working-directory is passed in command line, file paths are resolved relative to the specified directory.
This helps both when using libclang (where we can't require the user to actually change the working directory)
and to help reproduce test cases when the reproduction work comes along.
--FileSystemOptions is introduced which controls how file system operations are performed (currently it just contains
the working directory value if set).
--FileSystemOptions are passed around to various interfaces that perform file operations.
--Opening & reading the content of files should be done only through FileManager. This is useful in general since
file operations will be abstracted in the future for the reproduction mechanism.
FileSystemOptions is independent of FileManager so that we can have multiple translation units sharing the same
FileManager but with different FileSystemOptions.
Addresses rdar://8583824.
llvm-svn: 118203
ensuring that they cover all of their child nodes. There's still a
clang_getCursor()-related issue with CXXFunctionalCastExprs with
CXXConstructExprs as children (see FIXME in the test case); I'll look
at that separately.
llvm-svn: 118132
within an @implementation, but we have no way to record that information in the AST.
This may cause CursorVisitor to miss these Decls when doing a AST walk.
Fixes <rdar://problem/8595462>.
llvm-svn: 118109
to recover some context that is currently not modeled directly in the AST. Currently VarDecl's cannot
properly determine their source range because they have no context on whether or not they appear in a DeclGroup.
For the meantime, this bandaid suffices in libclang since that is where the correct SourceRange is directly needed.
Fixes <rdar://problem/8595749>.
llvm-svn: 117973
entities in the preprocessing record. Previously, we would only end up
getting the first token of a preprocessing record annotated
correctly. For example, given
#include "foo.h"
we would only get the '#' annotated as an inclusion directive; the
'include' and '"foo.h"' tokens would be given the general 'processing
directive' annotation.
Now, we get proper annotations for entities in the preprocessing
record.
llvm-svn: 117001
inclusion directives, keeping track of every #include, #import,
etc. in the translation unit. We keep track of the source location and
kind of the inclusion, how the file name was spelled, and the
underlying file to which the inclusion resolved.
llvm-svn: 116952
declaring methods and when sending messages to them, by bringing all
of the selector into TypedCheck chunks in the completion result. This
way, we can improve the sorting of these results to account for the
full selector name rather than just the first chunk.
llvm-svn: 116746
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.
llvm-svn: 116286
diagnostics produced by the driver itself. Previously, we were
allowing these to either be dropped or to slip through to stderr.
Fixes <rdar://problem/7595339>.
llvm-svn: 116285
on the presence of a 'clang' executable. Simplify
CIndexer::getClangResourcesPath() a bit.
Patch up the CMake makefiles to install headers into two locations in
the build tree, for those silly cases where 'clang' will end up
looking into the wrong build directory for headers.
llvm-svn: 116260
emitting diagnostics in a binary form to be consumed by libclang,
since libclang no longer does any of its work out-of-process, making
this code dead. Besides, this stuff never worked at 100% anyway.
llvm-svn: 116250
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
llvm-svn: 116241
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.
llvm-svn: 116207
following amusing sequence:
- AST writing schedules writing a type X* that it had never seen
before
- AST writing starts writing another declaration, ends up
deserializing X* from a prior AST file. Now we have two type IDs for
the same type!
- AST writer tries to write X*. It only has the lower-numbered ID
from the the prior AST file, so references to the higher-numbered ID
that was scheduled for writing go off into lalaland.
To fix this, keep the higher-numbered ID so we end up writing the type
twice. Since this issue occurs so rarely, and type records are
generally rather small, I deemed this better than the alternative: to
keep a separate mapping from the higher-numbered IDs to the
lower-numbered IDs, which we would end up having to check whenever we
want to deserialize any type.
Fixes <rdar://problem/8511624>, I think.
llvm-svn: 115647
produces a simple "display" name that captures the
arguments/parameters for a function, function template, class
template, or class template specialization.
llvm-svn: 115428
This matches the behavior for setters.
Also pass the class extension to ProcessPropertyDecl as the lexical DeclContext, even when not redeclaring the @property.
This fixes the remaining issues in <rdar://problem/7410145>.
llvm-svn: 114477
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.
llvm-svn: 113805
constructor, in source order. Also introduces a new reference kind for
class members, which is used here (for member initializers) and will
also be used for designated initializers and offsetof.
llvm-svn: 113545
last of the C++-specific expressions where we have decent source
information in the AST already. In particular, various
object-construction expressions (CXXNewExpr, CXXTemporaryObjectExpr)
still have poor source-location information that needs to be addressed.
llvm-svn: 112981
cursors. Sadly, this visitation is a hack, because we don't have
proper source-location information for nested-name-specifiers in the
AST. It does improve on the status quo, however.
llvm-svn: 112837
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.
llvm-svn: 112780
three different kinds of AST nodes to represent using declarations:
UsingDecl, UnresolvedUsingValueDecl, and
UnresolvedUsingTypenameDecl. These three are collapsed into a single
cursor kind for using declarations, since libclang clients don't need
the distinction.
Several related changes here:
- Cursor visitation of the three AST nodes for using declarations
- Proper source-range computation for these AST nodes
- Using declarations have no USRs, since they don't actually declare
any entities.
llvm-svn: 112730
in a few related ways:
- Don't recurse into instantiations of templates.
- Recurse into explicit specializations.
- Visit the template arguments of an explicit specialization or
explicit instantiation.
- Include template specialization arguments in the USRs for class
template specializations.
llvm-svn: 112720
suppressing USRs). Also, fix up the source location information for
using directives so that the declaration location refers to the
namespace name.
llvm-svn: 112693
with a new cursor kind for a reference to a namespace.
There's still some oddities in the source location information for
NamespaceAliasDecl that I'll address with a separate commit, so the
source locations displayed in the load-namespaces.cpp test will
change.
llvm-svn: 112676
determines the kind of declaration that would be generated if the
given template were instantiated. This allows a client to distinguish
among class/struct/union templates and function/member function/static
member function templates.
Also, teach clang_CXXMethod_isStatic() about function templates.
llvm-svn: 112655
template. Such cursors occur, for example, in template specialization
types such as vector<int>. Note that we do not handle the
super-interesting case where the template name is unresolved, e.g.,
within a template.
llvm-svn: 112636
libclang. This includes:
- Cursor kind for function templates, with visitation logic
- Cursor kinds for template parameters, with visitation logic
- Visitation logic for template specialization types, qualified type
locations
- USR generation for function templates, template specialization
types, template parameter types.
Also happens to fix PR7804, which I tripped across while testing.
llvm-svn: 112604
conversion functions. This introduces new cursor kinds for these three
C++ entities, and reworks visitation of function declarations so that
we get type-source information for the names.
llvm-svn: 112600
The extra data stored on user-defined literal Tokens is stored in extra
allocated memory, which is managed by the PreprocessorLexer because there isn't
a better place to put it that makes sure it gets deallocated, but only after
it's used up. My testing has shown no significant slowdown as a result, but
independent testing would be appreciated.
llvm-svn: 112458
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.
llvm-svn: 112180
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.
llvm-svn: 112149
- move DeclSpec &c into the Sema library
- move ParseAST into the Parse library
Reflect this change in a thousand different includes.
Reflect this change in the link orders.
llvm-svn: 111667
sure to (1) actually use the remapped files we were given rather
than old data, and (2) keep the remapped files alive until the
code-completion results are destroyed. Big thanks to Daniel for the
test case.
llvm-svn: 111597
Douglas Gregor