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
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
|
use std::{fmt, iter::FromIterator, sync::Arc};
use hir::{ExpandResult, MacroFile};
use ide_db::base_db::{
salsa::debug::{DebugQueryTable, TableEntry},
CrateId, FileId, FileTextQuery, SourceDatabase, SourceRootId,
};
use ide_db::{
symbol_index::{LibrarySymbolsQuery, SymbolIndex},
RootDatabase,
};
use itertools::Itertools;
use profile::{memory_usage, Bytes};
use rustc_hash::FxHashMap;
use stdx::format_to;
use syntax::{ast, Parse, SyntaxNode};
fn syntax_tree_stats(db: &RootDatabase) -> SyntaxTreeStats {
ide_db::base_db::ParseQuery.in_db(db).entries::<SyntaxTreeStats>()
}
fn macro_syntax_tree_stats(db: &RootDatabase) -> SyntaxTreeStats {
hir::db::ParseMacroExpansionQuery.in_db(db).entries::<SyntaxTreeStats>()
}
// Feature: Status
//
// Shows internal statistic about memory usage of rust-analyzer.
//
// |===
// | Editor | Action Name
//
// | VS Code | **Rust Analyzer: Status**
// |===
// image::https://user-images.githubusercontent.com/48062697/113065584-05f34500-91b1-11eb-98cc-5c196f76be7f.gif[]
pub(crate) fn status(db: &RootDatabase, file_id: Option<FileId>) -> String {
let mut buf = String::new();
format_to!(buf, "{}\n", FileTextQuery.in_db(db).entries::<FilesStats>());
format_to!(buf, "{}\n", LibrarySymbolsQuery.in_db(db).entries::<LibrarySymbolsStats>());
format_to!(buf, "{}\n", syntax_tree_stats(db));
format_to!(buf, "{} (macros)\n", macro_syntax_tree_stats(db));
format_to!(buf, "{} total\n", memory_usage());
format_to!(buf, "\ncounts:\n{}", profile::countme::get_all());
if let Some(file_id) = file_id {
format_to!(buf, "\nfile info:\n");
let krate = crate::parent_module::crate_for(db, file_id).pop();
match krate {
Some(krate) => {
let crate_graph = db.crate_graph();
let display_crate = |krate: CrateId| match &crate_graph[krate].display_name {
Some(it) => format!("{}({:?})", it, krate),
None => format!("{:?}", krate),
};
format_to!(buf, "crate: {}\n", display_crate(krate));
let deps = crate_graph[krate]
.dependencies
.iter()
.map(|dep| format!("{}={:?}", dep.name, dep.crate_id))
.format(", ");
format_to!(buf, "deps: {}\n", deps);
}
None => format_to!(buf, "does not belong to any crate"),
}
}
buf
}
#[derive(Default)]
struct FilesStats {
total: usize,
size: Bytes,
}
impl fmt::Display for FilesStats {
fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
write!(fmt, "{} ({}) files", self.total, self.size)
}
}
impl FromIterator<TableEntry<FileId, Arc<String>>> for FilesStats {
fn from_iter<T>(iter: T) -> FilesStats
where
T: IntoIterator<Item = TableEntry<FileId, Arc<String>>>,
{
let mut res = FilesStats::default();
for entry in iter {
res.total += 1;
res.size += entry.value.unwrap().len();
}
res
}
}
#[derive(Default)]
pub(crate) struct SyntaxTreeStats {
total: usize,
pub(crate) retained: usize,
}
impl fmt::Display for SyntaxTreeStats {
fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
write!(fmt, "{} trees, {} retained", self.total, self.retained)
}
}
impl FromIterator<TableEntry<FileId, Parse<ast::SourceFile>>> for SyntaxTreeStats {
fn from_iter<T>(iter: T) -> SyntaxTreeStats
where
T: IntoIterator<Item = TableEntry<FileId, Parse<ast::SourceFile>>>,
{
let mut res = SyntaxTreeStats::default();
for entry in iter {
res.total += 1;
res.retained += entry.value.is_some() as usize;
}
res
}
}
impl<M> FromIterator<TableEntry<MacroFile, ExpandResult<Option<(Parse<SyntaxNode>, M)>>>>
for SyntaxTreeStats
{
fn from_iter<T>(iter: T) -> SyntaxTreeStats
where
T: IntoIterator<Item = TableEntry<MacroFile, ExpandResult<Option<(Parse<SyntaxNode>, M)>>>>,
{
let mut res = SyntaxTreeStats::default();
for entry in iter {
res.total += 1;
res.retained += entry.value.is_some() as usize;
}
res
}
}
#[derive(Default)]
struct LibrarySymbolsStats {
total: usize,
size: Bytes,
}
impl fmt::Display for LibrarySymbolsStats {
fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
write!(fmt, "{} ({}) index symbols", self.total, self.size)
}
}
impl FromIterator<TableEntry<(), Arc<FxHashMap<SourceRootId, SymbolIndex>>>>
for LibrarySymbolsStats
{
fn from_iter<T>(iter: T) -> LibrarySymbolsStats
where
T: IntoIterator<Item = TableEntry<(), Arc<FxHashMap<SourceRootId, SymbolIndex>>>>,
{
let mut res = LibrarySymbolsStats::default();
for entry in iter {
let value = entry.value.unwrap();
for symbols in value.values() {
res.total += symbols.len();
res.size += symbols.memory_size();
}
}
res
}
}
|
