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import * as vscode from 'vscode';
import { TextMateRuleSettings } from './scopes';
let mappings = new Map<string, string[]>();
const defaultMapping = new Map<string, string[]>([
['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);
}
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