Standardize on the most common namespace setup in our *.cpp files:
using namespace llvm;
namespace clang {
namespace clangd {
void foo(StringRef) { ... }
And remove redundant llvm:: qualifiers. (Except for cases like
make_unique where this causes problems with std:: and ADL).
This choice is pretty arbitrary, but some broad consistency is nice.
This is going to conflict with everything. Sorry :-/
Squash the other configurations:
A)
using namespace llvm;
using namespace clang;
using namespace clangd;
void clangd::foo(StringRef);
This is in some of the older files. (It prevents accidentally defining a
new function instead of one in the header file, for what that's worth).
B)
namespace clang {
namespace clangd {
void foo(llvm::StringRef) { ... }
This is fine, but in practice the using directive often gets added over time.
C)
namespace clang {
namespace clangd {
using namespace llvm; // inside the namespace
This was pretty common, but is a bit misleading: name lookup preferrs
clang::clangd::foo > clang::foo > llvm:: foo (no matter where the using
directive is).
llvm-svn: 344850
Summary:
The RefSlab::size can easily cause confusions, it returns the number of
different symbols, rahter than the number of all references.
- add numRefs() method and cache it, since calculating it everytime is nontrivial.
- clear misused places.
Reviewers: sammccall
Subscribers: ilya-biryukov, ioeric, MaskRay, jkorous, arphaman, kadircet, cfe-commits
Differential Revision: https://reviews.llvm.org/D53389
llvm-svn: 344745
Summary:
This would buy us more memory. Using a 32-bits integer is enough for
most human-readable source code (up to 4M lines and 4K columns).
Previsouly, we used 8 bytes for a position, now 4 bytes, it would save
us 8 bytes for each Ref and each Symbol instance.
For LLVM-project binary index file, we save ~13% memory.
| Before | After |
| 412MB | 355MB |
Reviewers: sammccall
Subscribers: ilya-biryukov, ioeric, MaskRay, jkorous, arphaman, kadircet, cfe-commits
Differential Revision: https://reviews.llvm.org/D53363
llvm-svn: 344735
* With the current implementation, `sizeof(std::vector<Chunk>)` is added
twice to the `Dex` memory estimate which is incorrect
* `Dex` logs memory usage estimation before `BackingDataSize` is set and
hence the log report excludes size of the external `SymbolSlab` which is
coupled with `Dex` instance
Reviewed By: ioeric
Differential Revision: https://reviews.llvm.org/D52503
llvm-svn: 343117
Summary:
Interface is in one file, implementation in two as they have little in common.
A couple of ad-hoc YAML functions left exposed:
- symbol -> YAML I expect to keep for tools like dexp
- YAML -> symbol is used for the MR-style indexer, I think we can eliminate
this (merge-on-the-fly, else use a different serialization)
Reviewers: kbobyrev
Subscribers: mgorny, ilya-biryukov, ioeric, MaskRay, jkorous, arphaman, kadircet, cfe-commits
Differential Revision: https://reviews.llvm.org/D52453
llvm-svn: 342999
Summary:
This is intended to replace the current YAML format for general use.
It's ~10x more compact than YAML, and ~40% more compact than gzipped YAML:
llvmidx.riff = 20M, llvmidx.yaml = 272M, llvmidx.yaml.gz = 32M
It's also simpler/faster to read and write.
The format is a RIFF container (chunks of (type, size, data)) with:
- a compressed string table
- simple binary encoding of symbols (with varints for compactness)
It can be extended to include occurrences, Dex posting lists, etc.
There's no rich backwards-compatibility scheme, but a version number is included
so we can detect incompatible files and do ad-hoc back-compat.
Alternatives considered:
- compressed YAML or JSON: bulky and slow to load
- llvm bitstream: confusing model and libraries are hard to use. My attempt
produced slightly larger files, and the code was longer and slower.
- protobuf or similar: would be really nice (esp for back-compat) but the
dependency is a big hassle
- ad-hoc binary format without a container: it seems clear we're going
to add posting lists and occurrences here, and that they will benefit
from sharing a string table. The container makes it easy to debug
these pieces in isolation, and make them optional.
Reviewers: ioeric
Subscribers: mgorny, ilya-biryukov, MaskRay, jkorous, mgrang, arphaman, kadircet, cfe-commits
Differential Revision: https://reviews.llvm.org/D51585
llvm-svn: 341375
Sam McCall