src/vs/editor/common/services/languagesRegistry.ts
367 LOC · 313 covered · 54 uncovered · 98 ranges · 1430 concepts · 27 introducers · 699 tests
File neighbourhood
The centred file is linked to every concept that introduces one of its ranges, every test that runs code from the file, and the gray connector concepts standing between those tests and the file's own introducer concepts. Undirected links join concepts to every file where they introduce source and concepts to the tests they introduce; arrows show specialization between the displayed concepts and bridge only concepts omitted from this view. Concept colors match the source ranges below; connector concepts have no source color and are shown in gray.
Focused file, its introducer and connector concepts, their introduced files, and tests that run code from the file
In the embedded map, ordinary wheel input scrolls the page; use the visible controls to zoom and drag to pan. Open the full-screen map for canvas navigation: wheel pans, Ctrl/Command plus wheel zooms, and arrow keys pan when this region is focused. On touch screens, open the full-screen map to pan or pinch. If JavaScript or WebGL is unavailable, use the related-file, concept, and source links on this page.
Graph controls are ready.
Interactive rendering requires JavaScript and WebGL. Use the related-file, concept, and source links on this page while the interactive map is unavailable.
1
>
/*---------------------------------------------------------------------------------------------
languagesRegistry.ts ×26
2
>
* Copyright (c) Microsoft Corporation. All rights reserved.
3
>
* Licensed under the MIT License. See License.txt in the project root for license information.
4
>
*--------------------------------------------------------------------------------------------*/
5
>
6
>
import { Emitter, Event } from '../../../base/common/event.js';
7
>
import { Disposable, IDisposable } from '../../../base/common/lifecycle.js';
8
>
import { compareIgnoreCase, regExpLeadsToEndlessLoop } from '../../../base/common/strings.js';
9
>
import { clearPlatformLanguageAssociations, getLanguageIds, registerPlatformLanguageAssociation } from './languagesAssociations.js';
10
>
import { URI } from '../../../base/common/uri.js';
11
>
import { ILanguageIdCodec } from '../languages.js';
12
>
import { LanguageId } from '../encodedTokenAttributes.js';
13
>
import { ModesRegistry, PLAINTEXT_LANGUAGE_ID } from '../languages/modesRegistry.js';
14
>
import { ILanguageExtensionPoint, ILanguageNameIdPair, ILanguageIcon } from '../languages/language.js';
15
>
import { Extensions, IConfigurationRegistry } from '../../../platform/configuration/common/configurationRegistry.js';
16
>
import { Registry } from '../../../platform/registry/common/platform.js';
17
>
18
>
const hasOwnProperty = Object.prototype.hasOwnProperty;
19
>
const NULL_LANGUAGE_ID = 'vs.editor.nullLanguage';
20
>
21
>
interface IResolvedLanguage {
22
>
identifier: string;
23
>
name: string | null;
24
>
mimetypes: string[];
25
>
aliases: string[];
26
>
extensions: string[];
27
>
filenames: string[];
28
>
configurationFiles: URI[];
29
>
icons: ILanguageIcon[];
30
>
}
31
>
32
>
export class LanguageIdCodec implements ILanguageIdCodec {
33
>
34
>
private _nextLanguageId: number;
35
>
private readonly _languageIdToLanguage: string[] = [];
36
>
private readonly _languageToLanguageId = new Map<string, number>();
37
>
38
>
constructor() {
40
>
this._register(PLAINTEXT_LANGUAGE_ID, LanguageId.PlainText);
41
>
this._nextLanguageId = 2;
42
>
}
44
>
private _register(language: string, languageId: LanguageId): void {
46
>
this._languageToLanguageId.set(language, languageId);
47
>
}
49
>
public register(language: string): void {
52
>
}
54
>
this._register(language, languageId);
57
>
public encodeLanguageId(languageId: string): LanguageId {
59
>
}
61
>
public decodeLanguageId(languageId: LanguageId): string {
62
>
return this._languageIdToLanguage[languageId] || NULL_LANGUAGE_ID;
encodedTokenAttributes.ts ×1
63
>
}
65
>
66
>
export class LanguagesRegistry extends Disposable {
67
>
68
>
static instanceCount = 0;
69
>
70
>
private readonly _onDidChange: Emitter<void> = this._register(new Emitter<void>());
71
>
public readonly onDidChange: Event<void> = this._onDidChange.event;
72
>
73
>
private readonly _warnOnOverwrite: boolean;
74
>
public readonly languageIdCodec: LanguageIdCodec;
75
>
private _dynamicLanguages: ILanguageExtensionPoint[];
76
>
private _languages: { [id: string]: IResolvedLanguage };
77
>
private _mimeTypesMap: { [mimeType: string]: string };
78
>
private _nameMap: { [name: string]: string };
79
>
private _lowercaseNameMap: { [name: string]: string };
80
>
81
>
constructor(useModesRegistry = true, warnOnOverwrite = false) {
83
>
LanguagesRegistry.instanceCount++;
84
>
85
>
this._warnOnOverwrite = warnOnOverwrite;
86
>
this.languageIdCodec = new LanguageIdCodec();
87
>
this._dynamicLanguages = [];
88
>
this._languages = {};
89
>
this._mimeTypesMap = {};
90
>
this._nameMap = {};
91
>
this._lowercaseNameMap = {};
92
>
93
>
if (useModesRegistry) {
95
>
this._register(ModesRegistry.onDidChangeLanguages((m) => {
98
>
}
101
>
override dispose() {
103
>
super.dispose();
104
>
}
106
>
public setDynamicLanguages(def: ILanguageExtensionPoint[]): void {
107
this._dynamicLanguages = def;
108
this._initializeFromRegistry();
109
}
111
>
private _initializeFromRegistry(): void {
113
>
this._mimeTypesMap = {};
114
>
this._nameMap = {};
115
>
this._lowercaseNameMap = {};
116
>
117
>
clearPlatformLanguageAssociations();
118
>
const desc = (<ILanguageExtensionPoint[]>[]).concat(ModesRegistry.getLanguages()).concat(this._dynamicLanguages);
119
>
this._registerLanguages(desc);
120
>
}
122
>
registerLanguage(desc: ILanguageExtensionPoint): IDisposable {
124
>
}
126
>
_registerLanguages(desc: ILanguageExtensionPoint[]): void {
128
>
for (const d of desc) {
129
>
this._registerLanguage(d);
130
>
}
131
>
132
>
// Rebuild fast path maps
133
>
this._mimeTypesMap = {};
134
>
this._nameMap = {};
135
>
this._lowercaseNameMap = {};
136
>
Object.keys(this._languages).forEach((langId) => {
137
>
const language = this._languages[langId];
138
>
if (language.name) {
140
>
}
142
>
this._lowercaseNameMap[alias.toLowerCase()] = language.identifier;
143
>
});
144
>
language.mimetypes.forEach((mimetype) => {
145
>
this._mimeTypesMap[mimetype] = language.identifier;
146
>
});
147
>
});
148
>
149
>
Registry.as<IConfigurationRegistry>(Extensions.Configuration).registerOverrideIdentifiers(this.getRegisteredLanguageIds());
150
>
151
>
this._onDidChange.fire();
152
>
}
154
>
private _registerLanguage(lang: ILanguageExtensionPoint): void {
156
>
157
>
let resolvedLanguage: IResolvedLanguage;
158
>
if (hasOwnProperty.call(this._languages, langId)) {
161
>
this.languageIdCodec.register(langId);
162
>
resolvedLanguage = {
163
>
identifier: langId,
164
>
name: null,
165
>
mimetypes: [],
166
>
aliases: [],
167
>
extensions: [],
168
>
filenames: [],
169
>
configurationFiles: [],
170
>
icons: []
171
>
};
172
>
this._languages[langId] = resolvedLanguage;
173
>
}
174
>
175
>
this._mergeLanguage(resolvedLanguage, lang);
176
>
}
178
>
private _mergeLanguage(resolvedLanguage: IResolvedLanguage, lang: ILanguageExtensionPoint): void {
180
>
181
>
let primaryMime: string | null = null;
182
>
183
>
if (Array.isArray(lang.mimetypes) && lang.mimetypes.length > 0) {
185
>
primaryMime = lang.mimetypes[0];
186
>
}
188
>
if (!primaryMime) {
190
>
resolvedLanguage.mimetypes.push(primaryMime);
191
>
}
193
>
if (Array.isArray(lang.extensions)) {
195
>
// insert first as this appears to be the 'primary' language definition
languagesRegistry.ts ×1
196
>
resolvedLanguage.extensions = lang.extensions.concat(resolvedLanguage.extensions);
198
>
resolvedLanguage.extensions = resolvedLanguage.extensions.concat(lang.extensions);
199
>
}
200
>
for (const extension of lang.extensions) {
201
>
registerPlatformLanguageAssociation({ id: langId, mime: primaryMime, extension: extension }, this._warnOnOverwrite);
languagesRegistry.ts ×1
202
>
}
205
>
if (Array.isArray(lang.filenames)) {
207
>
registerPlatformLanguageAssociation({ id: langId, mime: primaryMime, filename: filename }, this._warnOnOverwrite);
208
>
resolvedLanguage.filenames.push(filename);
209
>
}
210
>
}
212
>
if (Array.isArray(lang.filenamePatterns)) {
213
for (const filenamePattern of lang.filenamePatterns) {
214
registerPlatformLanguageAssociation({ id: langId, mime: primaryMime, filepattern: filenamePattern }, this._warnOnOverwrite);
215
}
216
}
218
>
if (typeof lang.firstLine === 'string' && lang.firstLine.length > 0) {
219
let firstLineRegexStr = lang.firstLine;
220
if (firstLineRegexStr.charAt(0) !== '^') {
221
firstLineRegexStr = '^' + firstLineRegexStr;
222
}
223
try {
224
const firstLineRegex = new RegExp(firstLineRegexStr);
225
if (!regExpLeadsToEndlessLoop(firstLineRegex)) {
226
registerPlatformLanguageAssociation({ id: langId, mime: primaryMime, firstline: firstLineRegex }, this._warnOnOverwrite);
227
}
228
} catch (err) {
229
// Most likely, the regex was bad
230
console.warn(`[${lang.id}]: Invalid regular expression \`${firstLineRegexStr}\`: `, err);
231
}
232
}
234
>
resolvedLanguage.aliases.push(langId);
235
>
236
>
let langAliases: Array<string | null> | null = null;
237
>
if (typeof lang.aliases !== 'undefined' && Array.isArray(lang.aliases)) {
240
>
langAliases = [null];
243
>
}
246
>
if (langAliases !== null) {
248
>
if (!langAlias || langAlias.length === 0) {
250
>
}
252
>
}
255
>
const containsAliases = (langAliases !== null && langAliases.length > 0);
256
>
if (containsAliases && langAliases![0] === null) {
259
>
const bestName = (containsAliases ? langAliases![0] : null) || langId;
languagesRegistry.ts ×2
260
>
if (containsAliases || !resolvedLanguage.name) {
261
>
resolvedLanguage.name = bestName;
262
>
}
263
>
}
265
>
if (lang.configuration) {
267
>
}
269
>
if (lang.icon) {
270
resolvedLanguage.icons.push(lang.icon);
271
}
274
>
public isRegisteredLanguageId(languageId: string | null | undefined): boolean {
276
return false;
277
}
279
>
}
281
>
public getRegisteredLanguageIds(): string[] {
283
>
}
285
>
public getSortedRegisteredLanguageNames(): ILanguageNameIdPair[] {
287
>
for (const languageName in this._nameMap) {
289
>
result.push({
290
>
languageName: languageName,
291
>
languageId: this._nameMap[languageName]
292
>
});
293
>
}
294
>
}
295
>
result.sort((a, b) => compareIgnoreCase(a.languageName, b.languageName));
languagesRegistry.ts ×2
296
>
return result;
297
>
}
299
>
public getLanguageName(languageId: string): string | null {
301
return null;
302
}
304
>
}
306
>
public getMimeType(languageId: string): string | null {
308
return null;
309
}
311
>
return (language.mimetypes[0] || null);
312
>
}
314
>
public getExtensions(languageId: string): ReadonlyArray<string> {
316
return [];
317
}
319
>
}
321
>
public getFilenames(languageId: string): ReadonlyArray<string> {
323
return [];
324
}
326
>
}
328
>
public getIcon(languageId: string): ILanguageIcon | null {
329
if (!hasOwnProperty.call(this._languages, languageId)) {
330
return null;
331
}
332
const language = this._languages[languageId];
333
return (language.icons[0] || null);
334
}
336
>
public getConfigurationFiles(languageId: string): ReadonlyArray<URI> {
338
>
return [];
339
>
}
340
>
return this._languages[languageId].configurationFiles || [];
341
>
}
343
>
public getLanguageIdByLanguageName(languageName: string): string | null {
345
>
if (!hasOwnProperty.call(this._lowercaseNameMap, languageNameLower)) {
346
return null;
347
}
349
>
}
351
>
public getLanguageIdByMimeType(mimeType: string | null | undefined): string | null {
352
if (!mimeType) {
353
return null;
354
}
355
if (hasOwnProperty.call(this._mimeTypesMap, mimeType)) {
356
return this._mimeTypesMap[mimeType];
357
}
358
return null;
359
}
361
>
public guessLanguageIdByFilepathOrFirstLine(resource: URI | null, firstLine?: string): string[] {
362
if (!resource && !firstLine) {
363
return [];
364
}
365
return getLanguageIds(resource, firstLine);
366
}