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
|
//! Semantic Tokens helpers
use std::ops;
use lsp_types::{Range, SemanticToken, SemanticTokenModifier, SemanticTokenType, SemanticTokens};
macro_rules! define_semantic_token_types {
($(($ident:ident, $string:literal)),*$(,)?) => {
$(pub(crate) const $ident: SemanticTokenType = SemanticTokenType::new($string);)*
pub(crate) const SUPPORTED_TYPES: &[SemanticTokenType] = &[
SemanticTokenType::COMMENT,
SemanticTokenType::KEYWORD,
SemanticTokenType::STRING,
SemanticTokenType::NUMBER,
SemanticTokenType::REGEXP,
SemanticTokenType::OPERATOR,
SemanticTokenType::NAMESPACE,
SemanticTokenType::TYPE,
SemanticTokenType::STRUCT,
SemanticTokenType::CLASS,
SemanticTokenType::INTERFACE,
SemanticTokenType::ENUM,
SemanticTokenType::TYPE_PARAMETER,
SemanticTokenType::FUNCTION,
SemanticTokenType::MEMBER,
SemanticTokenType::PROPERTY,
SemanticTokenType::MACRO,
SemanticTokenType::VARIABLE,
SemanticTokenType::PARAMETER,
SemanticTokenType::LABEL,
$($ident),*
];
};
}
define_semantic_token_types![
(ATTRIBUTE, "attribute"),
(BOOLEAN, "boolean"),
(BUILTIN_TYPE, "builtinType"),
(ENUM_MEMBER, "enumMember"),
(LIFETIME, "lifetime"),
(SELF_KEYWORD, "selfKeyword"),
(TYPE_ALIAS, "typeAlias"),
(UNION, "union"),
(UNRESOLVED_REFERENCE, "unresolvedReference"),
(FORMAT_SPECIFIER, "formatSpecifier"),
(ESCAPE_SEQUENCE, "escapeSequence"),
];
macro_rules! define_semantic_token_modifiers {
($(($ident:ident, $string:literal)),*$(,)?) => {
$(pub(crate) const $ident: SemanticTokenModifier = SemanticTokenModifier::new($string);)*
pub(crate) const SUPPORTED_MODIFIERS: &[SemanticTokenModifier] = &[
SemanticTokenModifier::DOCUMENTATION,
SemanticTokenModifier::DECLARATION,
SemanticTokenModifier::DEFINITION,
SemanticTokenModifier::STATIC,
SemanticTokenModifier::ABSTRACT,
SemanticTokenModifier::DEPRECATED,
SemanticTokenModifier::READONLY,
$($ident),*
];
};
}
define_semantic_token_modifiers![
(CONSTANT, "constant"),
(CONTROL_FLOW, "controlFlow"),
(INJECTED, "injected"),
(MUTABLE, "mutable"),
(UNSAFE, "unsafe"),
(ATTRIBUTE_MODIFIER, "attribute"),
];
#[derive(Default)]
pub(crate) struct ModifierSet(pub(crate) u32);
impl ops::BitOrAssign<SemanticTokenModifier> for ModifierSet {
fn bitor_assign(&mut self, rhs: SemanticTokenModifier) {
let idx = SUPPORTED_MODIFIERS.iter().position(|it| it == &rhs).unwrap();
self.0 |= 1 << idx;
}
}
/// Tokens are encoded relative to each other.
///
/// This is a direct port of https://github.com/microsoft/vscode-languageserver-node/blob/f425af9de46a0187adb78ec8a46b9b2ce80c5412/server/src/sematicTokens.proposed.ts#L45
#[derive(Default)]
pub(crate) struct SemanticTokensBuilder {
prev_line: u32,
prev_char: u32,
data: Vec<SemanticToken>,
}
impl SemanticTokensBuilder {
/// Push a new token onto the builder
pub fn push(&mut self, range: Range, token_index: u32, modifier_bitset: u32) {
let mut push_line = range.start.line as u32;
let mut push_char = range.start.character as u32;
if !self.data.is_empty() {
push_line -= self.prev_line;
if push_line == 0 {
push_char -= self.prev_char;
}
}
// A token cannot be multiline
let token_len = range.end.character - range.start.character;
let token = SemanticToken {
delta_line: push_line,
delta_start: push_char,
length: token_len as u32,
token_type: token_index,
token_modifiers_bitset: modifier_bitset,
};
self.data.push(token);
self.prev_line = range.start.line as u32;
self.prev_char = range.start.character as u32;
}
pub fn build(self) -> SemanticTokens {
SemanticTokens { result_id: None, data: self.data }
}
}
pub fn type_index(type_: SemanticTokenType) -> u32 {
SUPPORTED_TYPES.iter().position(|it| *it == type_).unwrap() as u32
}
|
