Commit Graph

27 Commits

Author SHA1 Message Date
Douglas Gregor 9eb7701dff Various improvements to Clang's code-completion infrastructure:
- 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.

llvm-svn: 86306
2009-11-07 00:00:49 +00:00
Douglas Gregor f329c7c3c0 Include macros in code-completion results
llvm-svn: 85594
2009-10-30 16:50:04 +00:00
John McCall 0ad166672f Track source information for template arguments and template specialization
types.  Preserve it through template instantiation.  Preserve it through PCH,
although TSTs themselves aren't serializable, so that's pretty much meaningless.

llvm-svn: 85500
2009-10-29 08:12:44 +00:00
Douglas Gregor 4bd90e53c2 Eliminate QualifiedDeclRefExpr, which captured the notion of a
qualified reference to a declaration that is not a non-static data
member or non-static member function, e.g., 

  namespace N { int i; }
  int j = N::i;

Instead, extend DeclRefExpr to optionally store the qualifier. Most
clients won't see or care about the difference (since
QualifierDeclRefExpr inherited DeclRefExpr). However, this reduces the
number of top-level expression types that clients need to cope with,
brings the implementation of DeclRefExpr into line with MemberExpr,
and simplifies and unifies our handling of declaration references.

Extended DeclRefExpr to (optionally) store explicitly-specified
template arguments. This occurs when naming a declaration via a
template-id (which will be stored in a TemplateIdRefExpr) that,
following template argument deduction and (possibly) overload
resolution, is replaced with a DeclRefExpr that refers to a template
specialization but maintains the template arguments as written.

llvm-svn: 84962
2009-10-23 18:54:35 +00:00
Daniel Dunbar 2c422dc9ca Move clients to use IdentifierInfo::getNameStart() instead of getName()
llvm-svn: 84436
2009-10-18 20:26:12 +00:00
Douglas Gregor 58acf32af2 Minor tweaks for code-completion:
- Filter out unnamed declarations
  - Filter out declarations whose names are reserved for the
  implementation (e.g., __bar, _Foo) 
  - Place OVERLOAD: or COMPLETION: at the beginning of each
  code-completion result, so we can easily separate them from other
  compilation results.

llvm-svn: 83680
2009-10-09 22:16:47 +00:00
Steve Naroff 3b08630b06 - Fixup SortCodeCompleteResult() to properly sort keywords on Mac OS (compare was system dependent). Worked on Linux, failed on Mac OS (which caused the recently added testcase to fail on Linux).
- Sort results in testcase.

llvm-svn: 83597
2009-10-08 23:45:10 +00:00
Steve Naroff 936354c62a Add code completion support for ObjC property declarations/attributes.
llvm-svn: 83579
2009-10-08 21:55:05 +00:00
Douglas Gregor e6688e653f Determinism is for wimps. <Wimper>
llvm-svn: 82962
2009-09-28 03:51:44 +00:00
Douglas Gregor e412a5a8f7 For code completion, note that injected-class-names found as part of
lookup in a member access expression always start a
nested-name-specifier. Additionally, rank names that start
nested-name-specifiers after other names.

llvm-svn: 82663
2009-09-23 22:26:46 +00:00
Douglas Gregor f0f51985a1 Print the results of code-completion for overloading by displaying the
signature of the function with the current parameter highlighted as a
placeholder.

llvm-svn: 82593
2009-09-23 00:34:09 +00:00
Douglas Gregor 05f477c177 Separate the code-completion results for call completion from the
results for other, textual completion. For call completion, we now
produce enough information to show the function call argument that we
are currently on.

llvm-svn: 82592
2009-09-23 00:16:58 +00:00
Douglas Gregor 64b12b5ee7 Make sure we don't try to add code-completion results without an
active shadow map.

llvm-svn: 82588
2009-09-22 23:31:26 +00:00
Douglas Gregor 2b3ee156fc When code-completion finds a declaration only because it is usable as
the start of a nested-name-specifier, add the "::" after the
nested-name-specifier to the code-completion string.

llvm-svn: 82587
2009-09-22 23:22:24 +00:00
Douglas Gregor 5bf52697b0 Tweak the code-completion results ranking and formation, so that
members found in base classes have the same ranking as members found
in derived classes. However, we will introduce an informative note for
members found in base classes, showing (as a nested-name-specifier)
the qualification to name the base class, to make it clear which
members are from bases.
 

llvm-svn: 82586
2009-09-22 23:15:58 +00:00
Douglas Gregor ba4490399b Teach code-completion to introduce a ", ..." placeholder for variadic functions
llvm-svn: 82577
2009-09-22 21:42:17 +00:00
Anders Carlsson e7ceb85b0d (With Doug's help) fix a crash in the code completion code that lead to a test failure.
llvm-svn: 82558
2009-09-22 17:29:51 +00:00
Douglas Gregor cabea40ea3 Implement code completion within a function call, triggered after the
opening parentheses and after each comma. We gather the set of visible
overloaded functions, perform "partial" overloading based on the set
of arguments that we have thus far, and return the still-viable
results sorted by the likelihood that they will be the best candidate.

Most of the changes in this patch are a refactoring of the overloading
routines for a function call, since we needed to separate out the
notion of building an overload set (common to code-completion and
normal semantic analysis) and then what to do with that overload
set. As part of this change, I've pushed explicit template arguments
into a few more subroutines.

There is still much more work to do in this area. Function templates
won't be handled well (unless we happen to deduce all of the template
arguments before we hit the completion point), nor will overloaded
function-call operators or calls to member functions.

llvm-svn: 82549
2009-09-22 15:41:20 +00:00
Douglas Gregor 9d64c5e3a5 Code completion for ordinary names when we're starting a declaration, expression, or statement
llvm-svn: 82481
2009-09-21 20:51:25 +00:00
Douglas Gregor 2af2f670d1 When providing a code-completion suggestion for a hidden name, include
a nested-name-specifier that describes how to refer to that name. For
example, given:

  struct Base { int member; };
  struct Derived : Base { int member; };

the code-completion result for a member access into "Derived" will
provide both "member" to refer to Derived::member (no qualification needed) and
"Base::member" to refer to Base::member (qualification included).

llvm-svn: 82476
2009-09-21 20:12:40 +00:00
Douglas Gregor f251067530 Enhance "case" code completion in C++ to suggest qualified names for
enumerators when either the user intentionally wrote a qualified name
(in which case we just use that nested-name-specifier to match
the user's code) or when this is the first "case" statement and we
need a qualified name to refer to an enumerator in a different scope.

llvm-svn: 82474
2009-09-21 19:57:38 +00:00
Douglas Gregor d328d57c39 Code completion for "case" statements within a switch on an expression
of enumeration type, providing the various unused enumerators as options.

llvm-svn: 82467
2009-09-21 18:10:23 +00:00
Douglas Gregor 3545ff43f4 Refactor and simplify the CodeCompleteConsumer, so that all of the
real work is performed within Sema. Addresses Chris's comments, but
still retains the heavyweight list-of-multimaps data structure.

llvm-svn: 82459
2009-09-21 16:56:56 +00:00
Douglas Gregor c811ede9b7 C++ code completion after the "operator" keyword. Provide overloaded
operators, type specifiers, type names, and nested-name-specifiers.

llvm-svn: 82264
2009-09-18 20:05:18 +00:00
Douglas Gregor 7e90c6db18 Introduce four new code-completion hooks for C++:
- after "using", show anything that can be a nested-name-specifier.
  - after "using namespace", show any visible namespaces or namespace aliases
  - after "namespace", show any namespace definitions in the current scope
  - after "namespace identifier = ", show any visible namespaces or
    namespace aliases

llvm-svn: 82251
2009-09-18 19:03:04 +00:00
Douglas Gregor f45b0cf389 Implement code completion for tags, e.g., code completion after "enum"
will provide the names of various enumerations currently
visible. Introduced filtering of code-completion results when we build
the result set, so that we can identify just the kinds of declarations
we want.

This implementation is incomplete for C++, since we don't consider
that the token after the tag keyword could start a
nested-name-specifier. 

llvm-svn: 82222
2009-09-18 15:37:17 +00:00
Douglas Gregor 2436e7116b Initial implementation of a code-completion interface in Clang. In
essence, code completion is triggered by a magic "code completion"
token produced by the lexer [*], which the parser recognizes at
certain points in the grammar. The parser then calls into the Action
object with the appropriate CodeCompletionXXX action.

Sema implements the CodeCompletionXXX callbacks by performing minimal
translation, then forwarding them to a CodeCompletionConsumer
subclass, which uses the results of semantic analysis to provide
code-completion results. At present, only a single, "printing" code
completion consumer is available, for regression testing and
debugging. However, the design is meant to permit other
code-completion consumers.

This initial commit contains two code-completion actions: one for
member access, e.g., "x." or "p->", and one for
nested-name-specifiers, e.g., "std::". More code-completion actions
will follow, along with improved gathering of code-completion results
for the various contexts.

[*] In the current -code-completion-dump testing/debugging mode, the
file is truncated at the completion point and EOF is translated into
"code completion".

llvm-svn: 82166
2009-09-17 21:32:03 +00:00