aboutsummaryrefslogtreecommitdiff
path: root/crates/ra_ide_api/src/status.rs
blob: dee2ea46a959036fc925e2582ec96e6b7b9f126e (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
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
use std::{fmt, iter::FromIterator, sync::Arc};

use hir::MacroFile;
use ra_db::{
    salsa::{
        debug::{DebugQueryTable, TableEntry},
        Database,
    },
    FileTextQuery, SourceRootId,
};
use ra_prof::{memory_usage, Bytes};
use ra_syntax::{ast, Parse, SyntaxNode};

use crate::{
    db::RootDatabase,
    symbol_index::{LibrarySymbolsQuery, SymbolIndex},
    FileId,
};

fn syntax_tree_stats(db: &RootDatabase) -> SyntaxTreeStats {
    db.query(ra_db::ParseQuery).entries::<SyntaxTreeStats>()
}
fn macro_syntax_tree_stats(db: &RootDatabase) -> SyntaxTreeStats {
    db.query(hir::db::ParseMacroQuery).entries::<SyntaxTreeStats>()
}

pub(crate) fn status(db: &RootDatabase) -> String {
    let files_stats = db.query(FileTextQuery).entries::<FilesStats>();
    let syntax_tree_stats = syntax_tree_stats(db);
    let macro_syntax_tree_stats = macro_syntax_tree_stats(db);
    let symbols_stats = db.query(LibrarySymbolsQuery).entries::<LibrarySymbolsStats>();
    format!(
        "{}\n{}\n{}\n{} (macros)\n\n\nmemory:\n{}\ngc {:?} seconds ago",
        files_stats,
        symbols_stats,
        syntax_tree_stats,
        macro_syntax_tree_stats,
        memory_usage(),
        db.last_gc.elapsed().as_secs(),
    )
}

#[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 FromIterator<TableEntry<MacroFile, Option<Parse<SyntaxNode>>>> for SyntaxTreeStats {
    fn from_iter<T>(iter: T) -> SyntaxTreeStats
    where
        T: IntoIterator<Item = TableEntry<MacroFile, Option<Parse<SyntaxNode>>>>,
    {
        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, "{} ({}) symbols", self.total, self.size,)
    }
}

impl FromIterator<TableEntry<SourceRootId, Arc<SymbolIndex>>> for LibrarySymbolsStats {
    fn from_iter<T>(iter: T) -> LibrarySymbolsStats
    where
        T: IntoIterator<Item = TableEntry<SourceRootId, Arc<SymbolIndex>>>,
    {
        let mut res = LibrarySymbolsStats::default();
        for entry in iter {
            let value = entry.value.unwrap();
            res.total += value.len();
            res.size += value.memory_size();
        }
        res
    }
}