@maniascript/mslint/dist/lib/rules/no-unused-include.js

ManiaScript linter

import {} from '../linter/rule.js';
import { Identifier, IncludeDirective } from '@maniascript/parser';
export const noUnusedInclude = {
    meta: {
        id: 'no-unused-include',
        description: 'An included library must be used in the file',
        recommended: true
    },
    create(context) {
        const unusedIncludes = new Map();
        let isEnabled = true;
        return {
            'RequireContextDirective:enter': () => {
                isEnabled = false;
            },
            'ExtendsDirective:enter': () => {
                isEnabled = false;
            },
            'IncludeDirective:exit': (node) => {
                if (isEnabled && node instanceof IncludeDirective && node.alias !== undefined) {
                    unusedIncludes.set(node.alias.name, node);
                }
            },
            'Identifier:enter': (node) => {
                if (isEnabled && node instanceof Identifier && node.namespace !== undefined) {
                    unusedIncludes.delete(node.namespace);
                }
            },
            'Program:exit': () => {
                if (isEnabled) {
                    for (const unusedInclude of unusedIncludes) {
                        if (unusedInclude[1].alias !== undefined) {
                            context.report(unusedInclude[1], `Include '${unusedInclude[1].alias.name}' is never used`);
                        }
                        else {
                            context.report(unusedInclude[1], `Include '${unusedInclude[1].path.value}' is never used`);
                        }
                    }
                }
            }
        };
    }
};