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
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
//! Types of Language Server Index Format (LSIF). LSIF is a standard format
//! for language servers or other programming tools to dump their knowledge
//! about a workspace.
//!
//! Based on <https://microsoft.github.io/language-server-protocol/specifications/lsif/0.6.0/specification/>

use serde::{Deserialize, Serialize};
use crate::{Url, Range};

pub type Id = crate::NumberOrString;

#[derive(Debug, PartialEq, Serialize, Deserialize)]
#[serde(untagged)]
pub enum LocationOrRangeId {
    Location(crate::Location),
    RangeId(Id),
}

#[derive(Debug, PartialEq, Serialize, Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct Entry {
    pub id: Id,
    #[serde(flatten)]
    pub data: Element,
}

#[derive(Debug, PartialEq, Serialize, Deserialize)]
#[serde(rename_all = "camelCase")]
#[serde(tag = "type")]
pub enum Element {
    Vertex(Vertex),
    Edge(Edge),
}

#[derive(Debug, PartialEq, Serialize, Deserialize)]
pub struct ToolInfo {
    pub name: String,
    #[serde(default = "Default::default")]
    #[serde(skip_serializing_if = "Vec::is_empty")]
    pub args: Vec<String>,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub version: Option<String>,
}

#[derive(Debug, PartialEq, Serialize, Deserialize)]
pub enum Encoding {
    /// Currently only 'utf-16' is supported due to the limitations in LSP.
    #[serde(rename = "utf-16")]
    Utf16,
}

#[derive(Debug, PartialEq, Serialize, Deserialize)]
pub struct RangeBasedDocumentSymbol {
    pub id: Id,
    #[serde(default = "Default::default")]
    #[serde(skip_serializing_if = "Vec::is_empty")]
    pub children: Vec<RangeBasedDocumentSymbol>,
}

#[derive(Debug, PartialEq, Serialize, Deserialize)]
#[serde(rename_all = "camelCase")]
#[serde(untagged)]
pub enum DocumentSymbolOrRangeBasedVec {
    DocumentSymbol(Vec<crate::DocumentSymbol>),
    RangeBased(Vec<RangeBasedDocumentSymbol>),
}

#[derive(Debug, PartialEq, Serialize, Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct DefinitionTag {
    /// The text covered by the range     
    text: String,
    /// The symbol kind.
    kind: crate::SymbolKind,
    /// Indicates if this symbol is deprecated.
    #[serde(default)]
    #[serde(skip_serializing_if = "std::ops::Not::not")]
    deprecated: bool,
    /// The full range of the definition not including leading/trailing whitespace but everything else, e.g comments and code.
    /// The range must be included in fullRange.
    full_range: Range,
    /// Optional detail information for the definition.
    #[serde(skip_serializing_if = "Option::is_none")]
    detail: Option<String>,
}


#[derive(Debug, PartialEq, Serialize, Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct DeclarationTag {
    /// The text covered by the range     
    text: String,
    /// The symbol kind.
    kind: crate::SymbolKind,
    /// Indicates if this symbol is deprecated.
    #[serde(default)]
    deprecated: bool,
    /// The full range of the definition not including leading/trailing whitespace but everything else, e.g comments and code.
    /// The range must be included in fullRange.
    full_range: Range,
    /// Optional detail information for the definition.
    #[serde(skip_serializing_if = "Option::is_none")]
    detail: Option<String>,
}

#[derive(Debug, PartialEq, Serialize, Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct ReferenceTag {
    text: String,
}

#[derive(Debug, PartialEq, Serialize, Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct UnknownTag {
    text: String,
}

#[derive(Debug, PartialEq, Serialize, Deserialize)]
#[serde(rename_all = "camelCase")]
#[serde(tag = "type")]
pub enum RangeTag {
    Definition(DefinitionTag),
    Declaration(DeclarationTag),
    Reference(ReferenceTag),
    Unknown(UnknownTag),
}

#[derive(Debug, PartialEq, Serialize, Deserialize)]
#[serde(rename_all = "camelCase")]
#[serde(tag = "label")]
pub enum Vertex {
    MetaData(MetaData),
    /// <https://github.com/Microsoft/language-server-protocol/blob/master/indexFormat/specification.md#the-project-vertex>
    Project(Project),
    Document(Document),
    /// <https://github.com/Microsoft/language-server-protocol/blob/master/indexFormat/specification.md#ranges>
    Range {
        #[serde(flatten)]
        range: Range,
        #[serde(skip_serializing_if = "Option::is_none")]
        tag: Option<RangeTag>,
    },
    /// <https://github.com/Microsoft/language-server-protocol/blob/master/indexFormat/specification.md#result-set>
    ResultSet(ResultSet),
    Moniker(crate::Moniker),
    PackageInformation(PackageInformation),

    #[serde(rename = "$event")]
    Event(Event),

    DefinitionResult,
    DeclarationResult,
    TypeDefinitionResult,
    ReferenceResult,
    ImplementationResult,
    FoldingRangeResult {
        result: Vec<crate::FoldingRange>,
    },
    HoverResult {
        result: crate::Hover,
    },
    DocumentSymbolResult {
        result: DocumentSymbolOrRangeBasedVec,
    },
    DocumentLinkResult {
        result: Vec<crate::DocumentLink>,
    },
    DiagnosticResult {
        result: Vec<crate::Diagnostic>,
    },
}

#[derive(Debug, PartialEq, Serialize, Deserialize)]
#[serde(rename_all = "camelCase")]
pub enum EventKind {
    Begin,
    End,
}

#[derive(Debug, PartialEq, Serialize, Deserialize)]
#[serde(rename_all = "camelCase")]
pub enum EventScope {
    Document,
    Project,
}


#[derive(Debug, PartialEq, Serialize, Deserialize)]
pub struct Event {
    pub kind: EventKind,
    pub scope: EventScope,
    pub data: Id,
}

#[derive(Debug, PartialEq, Serialize, Deserialize)]
#[serde(rename_all = "camelCase")]
#[serde(tag = "label")]
pub enum Edge {
    Contains(EdgeDataMultiIn),
    Moniker(EdgeData),
    NextMoniker(EdgeData),
    Next(EdgeData),
    PackageInformation(EdgeData),
    Item(Item),

    // Methods
    #[serde(rename = "textDocument/definition")]
    Definition(EdgeData),
    #[serde(rename = "textDocument/declaration")]
    Declaration(EdgeData),
    #[serde(rename = "textDocument/hover")]
    Hover(EdgeData),
    #[serde(rename = "textDocument/references")]
    References(EdgeData),
    #[serde(rename = "textDocument/implementation")]
    Implementation(EdgeData),
    #[serde(rename = "textDocument/typeDefinition")]
    TypeDefinition(EdgeData),
    #[serde(rename = "textDocument/foldingRange")]
    FoldingRange(EdgeData),
    #[serde(rename = "textDocument/documentLink")]
    DocumentLink(EdgeData),
    #[serde(rename = "textDocument/documentSymbol")]
    DocumentSymbol(EdgeData),
    #[serde(rename = "textDocument/diagnostic")]
    Diagnostic(EdgeData),
}

#[derive(Debug, PartialEq, Serialize, Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct EdgeData {
    pub in_v: Id,
    pub out_v: Id,
}

#[derive(Debug, PartialEq, Serialize, Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct EdgeDataMultiIn {
    pub in_vs: Vec<Id>,
    pub out_v: Id,
}

#[derive(Debug, PartialEq, Serialize, Deserialize)]
#[serde(untagged)]
pub enum DefinitionResultType {
    Scalar(LocationOrRangeId),
    Array(LocationOrRangeId),
}

#[derive(Debug, PartialEq, Serialize, Deserialize)]
#[serde(rename_all = "camelCase")]
pub enum ItemKind {
    Declarations,
    Definitions,
    References,
    ReferenceResults,
    ImplementationResults,
}

#[derive(Debug, PartialEq, Serialize, Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct Item {
    pub document: Id,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub property: Option<ItemKind>,
    #[serde(flatten)]
    pub edge_data: EdgeDataMultiIn,
}

#[derive(Debug, PartialEq, Serialize, Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct Document {
    pub uri: Url,
    pub language_id: String,
}

/// <https://github.com/Microsoft/language-server-protocol/blob/master/indexFormat/specification.md#result-set>
#[derive(Debug, PartialEq, Serialize, Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct ResultSet {
    #[serde(skip_serializing_if = "Option::is_none")]
    pub key: Option<String>,
}

/// <https://github.com/Microsoft/language-server-protocol/blob/master/indexFormat/specification.md#the-project-vertex>
#[derive(Debug, PartialEq, Serialize, Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct Project {
    #[serde(skip_serializing_if = "Option::is_none")]
    pub resource: Option<Url>,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub content: Option<String>,
    pub kind: String,
}

#[derive(Debug, PartialEq, Serialize, Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct MetaData {
    /// The version of the LSIF format using semver notation. See <https://semver.org/>. Please note
    /// the version numbers starting with 0 don't adhere to semver and adopters have to assume
    /// that each new version is breaking.
    pub version: String,

    /// The project root (in form of an URI) used to compute this dump.
    pub project_root: Url,

    /// The string encoding used to compute line and character values in
    /// positions and ranges.
    pub position_encoding: Encoding,

    /// Information about the tool that created the dump
    #[serde(skip_serializing_if = "Option::is_none")]
    pub tool_info: Option<ToolInfo>,
}

#[derive(Debug, PartialEq, Serialize, Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct Repository {
    pub r#type: String,
    pub url: String,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub commit_id: Option<String>,
}

#[derive(Debug, PartialEq, Serialize, Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct PackageInformation {
    pub name: String,
    pub manager: String,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub uri: Option<Url>,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub content: Option<String>,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub repository: Option<Repository>,
    #[serde(skip_serializing_if = "Option::is_none")]
    pub version: Option<String>,
}