import * as vscode from 'vscode'; import { TextMateRuleSettings } from './scopes'; let mappings = new Map(); const defaultMapping = new Map([ [ 'comment', [ 'comment', 'comment.block', 'comment.line', 'comment.block.documentation' ] ], ['string', ['string']], ['keyword', ['keyword']], ['keyword.control', ['keyword.control', 'keyword', 'keyword.other']], [ 'keyword.unsafe', ['storage.modifier', 'keyword.other', 'keyword.control', 'keyword'] ], ['function', ['entity.name.function']], ['parameter', ['variable.parameter']], ['constant', ['constant', 'variable']], ['type', ['entity.name.type']], ['builtin', ['variable.language', 'support.type', 'support.type']], ['text', ['string', 'string.quoted', 'string.regexp']], ['attribute', ['keyword']], ['literal', ['string', 'string.quoted', 'string.regexp']], ['macro', ['support.other']], ['variable', ['variable']], ['variable.mut', ['variable', 'storage.modifier']], [ 'field', [ 'variable.object.property', 'meta.field.declaration', 'meta.definition.property', 'variable.other' ] ], ['module', ['entity.name.section', 'entity.other']] ]); // Temporary exported for debugging for now. export function find(scope: string): string[] { return mappings.get(scope) || []; } export function toRule( scope: string, intoRule: (scope: string) => TextMateRuleSettings | undefined ): TextMateRuleSettings | undefined { return find(scope) .map(intoRule) .filter(rule => rule !== undefined)[0]; } function isString(value: any): value is string { return typeof value === 'string'; } function isArrayOfString(value: any): value is string[] { return Array.isArray(value) && value.every(item => isString(item)); } export function load() { const rawConfig: { [key: string]: any } = vscode.workspace .getConfiguration('rust-analyzer') .get('scopeMappings') || {}; mappings = Object.entries(rawConfig) .filter(([_, value]) => isString(value) || isArrayOfString(value)) .reduce((list, [key, value]: [string, string | string[]]) => { return list.set(key, isString(value) ? [value] : value); }, defaultMapping); }