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| /**
| * @fileoverview Enforce a maximum number of classes per file
| * @author James Garbutt <https://github.com/43081j>
| */
| "use strict";
|
| //------------------------------------------------------------------------------
| // Requirements
| //------------------------------------------------------------------------------
|
|
| //------------------------------------------------------------------------------
| // Rule Definition
| //------------------------------------------------------------------------------
|
| module.exports = {
| meta: {
| type: "suggestion",
|
| docs: {
| description: "enforce a maximum number of classes per file",
| category: "Best Practices",
| recommended: false,
| url: "https://eslint.org/docs/rules/max-classes-per-file"
| },
|
| schema: [
| {
| type: "integer",
| minimum: 1
| }
| ],
|
| messages: {
| maximumExceeded: "File has too many classes ({{ classCount }}). Maximum allowed is {{ max }}."
| }
| },
| create(context) {
|
| const maxClasses = context.options[0] || 1;
|
| let classCount = 0;
|
| return {
| Program() {
| classCount = 0;
| },
| "Program:exit"(node) {
| if (classCount > maxClasses) {
| context.report({
| node,
| messageId: "maximumExceeded",
| data: {
| classCount,
| max: maxClasses
| }
| });
| }
| },
| "ClassDeclaration, ClassExpression"() {
| classCount++;
| }
| };
| }
| };
|
|
