Commit Graph

6 Commits

Author SHA1 Message Date
Eric Liu 9ec459ff6b [clangd] Add an interface that finds symbol by SymbolID in SymbolIndex.
Summary:
Potential use case: argument go-to-definition result with symbol
information (e.g. function definition in cc file) that might not be in the AST.

Reviewers: sammccall

Reviewed By: sammccall

Subscribers: klimek, ilya-biryukov, jkorous-apple, cfe-commits

Differential Revision: https://reviews.llvm.org/D44305

llvm-svn: 327487
2018-03-14 09:48:05 +00:00
Sam McCall d1a7a37c22 [clangd] Pass Context implicitly using TLS.
Summary:
Instead of passing Context explicitly around, we now have a thread-local
Context object `Context::current()` which is an implicit argument to
every function.
Most manipulation of this should use the WithContextValue helper, which
augments the current Context to add a single KV pair, and restores the
old context on destruction.

Advantages are:
- less boilerplate in functions that just propagate contexts
- reading most code doesn't require understanding context at all, and
  using context as values in fewer places still
- fewer options to pass the "wrong" context when it changes within a
  scope (e.g. when using Span)
- contexts pass through interfaces we can't modify, such as VFS
- propagating contexts across threads was slightly tricky (e.g.
  copy vs move, no move-init in lambdas), and is now encapsulated in
  the threadpool

Disadvantages are all the usual TLS stuff - hidden magic, and
potential for higher memory usage on threads that don't use the
context. (In practice, it's just one pointer)

Reviewers: ilya-biryukov

Subscribers: klimek, jkorous-apple, ioeric, cfe-commits

Differential Revision: https://reviews.llvm.org/D42517

llvm-svn: 323872
2018-01-31 13:40:48 +00:00
Haojian Wu ba28e9ac5d [clangd] Add static index for the global code completion.
Summary:
Use the YAML-format symbols (generated by the global-symbol-builder tool) to
do the global code completion.
It is **experimental** only , but it allows us to experience global code
completion on a relatively small project.

Tested with LLVM project.

Reviewers: sammccall, ioeric

Reviewed By: sammccall, ioeric

Subscribers: klimek, ilya-biryukov, cfe-commits

Differential Revision: https://reviews.llvm.org/D41668

llvm-svn: 322191
2018-01-10 14:44:34 +00:00
Benjamin Kramer 50a967d601 [clangd] Simplify code. No functionality change intended.
llvm-svn: 321523
2017-12-28 14:47:01 +00:00
Eric Liu 6f648df1b9 [clangd] Index-based code completion.
Summary: Use symbol index to populate completion results for qualfified IDs e.g. "nx::A^".

Reviewers: ilya-biryukov, sammccall

Reviewed By: ilya-biryukov, sammccall

Subscribers: rwols, klimek, mgorny, cfe-commits, sammccall

Differential Revision: https://reviews.llvm.org/D41281

llvm-svn: 321083
2017-12-19 16:50:37 +00:00
Eric Liu 3732cadc73 [clangd] Symbol index interfaces and an in-memory index implementation.
Summary:
o Index interfaces to support using different index sources (e.g. AST index, global index) for code completion, cross-reference finding etc. This patch focuses on code completion.

The following changes in the original patch has been split out.
o Implement an AST-based index.
o Add an option to replace sema code completion for qualified-id with index-based completion.
o Implement an initial naive code completion index which matches symbols that have the query string as substring.

Reviewers: malaperle, sammccall

Reviewed By: sammccall

Subscribers: hokein, klimek, malaperle, mgorny, ilya-biryukov, cfe-commits

Differential Revision: https://reviews.llvm.org/D40548

llvm-svn: 320688
2017-12-14 11:25:49 +00:00