blob: 3788693e042466c4469cb53c02a87d885e2d8b86 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
|
//===--- Serialization.h - Binary serialization of index data ----*- C++-*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file provides serialization of indexed symbols and other data.
//
// It writes sections:
// - metadata such as version info
// - a string table (which is compressed)
// - lists of encoded symbols
//
// The format has a simple versioning scheme: the format version number is
// written in the file and non-current versions are rejected when reading.
//
// Human-readable YAML serialization is also supported, and recommended for
// debugging and experiments only.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CLANG_TOOLS_EXTRA_CLANGD_INDEX_RIFF_H
#define LLVM_CLANG_TOOLS_EXTRA_CLANGD_INDEX_RIFF_H
#include "Headers.h"
#include "Index.h"
#include "index/Symbol.h"
#include "llvm/Support/Error.h"
namespace clang {
namespace clangd {
enum class IndexFileFormat {
RIFF, // Versioned binary format, suitable for production use.
YAML, // Human-readable format, suitable for experiments and debugging.
};
// Holds the contents of an index file that was read.
struct IndexFileIn {
llvm::Optional<SymbolSlab> Symbols;
llvm::Optional<RefSlab> Refs;
// Keys are URIs of the source files.
llvm::Optional<IncludeGraph> Sources;
};
// Parse an index file. The input must be a RIFF or YAML file.
llvm::Expected<IndexFileIn> readIndexFile(llvm::StringRef);
// Specifies the contents of an index file to be written.
struct IndexFileOut {
const SymbolSlab *Symbols = nullptr;
const RefSlab *Refs = nullptr;
// Keys are URIs of the source files.
const IncludeGraph *Sources = nullptr;
// TODO: Support serializing Dex posting lists.
IndexFileFormat Format = IndexFileFormat::RIFF;
IndexFileOut() = default;
IndexFileOut(const IndexFileIn &I)
: Symbols(I.Symbols ? I.Symbols.getPointer() : nullptr),
Refs(I.Refs ? I.Refs.getPointer() : nullptr) {}
};
// Serializes an index file.
llvm::raw_ostream &operator<<(llvm::raw_ostream &OS, const IndexFileOut &O);
// Convert a single symbol to YAML, a nice debug representation.
std::string toYAML(const Symbol &);
std::string toYAML(const std::pair<SymbolID, ArrayRef<Ref>> &);
// Build an in-memory static index from an index file.
// The size should be relatively small, so data can be managed in memory.
std::unique_ptr<SymbolIndex> loadIndex(llvm::StringRef Filename,
bool UseDex = true);
} // namespace clangd
} // namespace clang
#endif
|
