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75 lines
2.2 KiB
75 lines
2.2 KiB
/** |
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* @author Toru Nagashima <https://github.com/mysticatea> |
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* See LICENSE file in root directory for full license. |
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*/ |
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"use strict" |
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const { findVariable } = require("eslint-utils") |
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function isExports(node, scope) { |
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let variable = null |
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return ( |
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node != null && |
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node.type === "Identifier" && |
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node.name === "exports" && |
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(variable = findVariable(scope, node)) != null && |
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variable.scope.type === "global" |
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) |
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} |
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function isModuleExports(node, scope) { |
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let variable = null |
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return ( |
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node != null && |
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node.type === "MemberExpression" && |
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!node.computed && |
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node.object.type === "Identifier" && |
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node.object.name === "module" && |
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node.property.type === "Identifier" && |
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node.property.name === "exports" && |
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(variable = findVariable(scope, node.object)) != null && |
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variable.scope.type === "global" |
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) |
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} |
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module.exports = { |
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meta: { |
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docs: { |
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description: "disallow the assignment to `exports`", |
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category: "Possible Errors", |
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recommended: true, |
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url: |
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"https://github.com/mysticatea/eslint-plugin-node/blob/v11.1.0/docs/rules/no-exports-assign.md", |
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}, |
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fixable: null, |
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messages: { |
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forbidden: |
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"Unexpected assignment to 'exports' variable. Use 'module.exports' instead.", |
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}, |
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schema: [], |
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type: "problem", |
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}, |
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create(context) { |
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return { |
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AssignmentExpression(node) { |
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const scope = context.getScope() |
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if ( |
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!isExports(node.left, scope) || |
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// module.exports = exports = {} |
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(node.parent.type === "AssignmentExpression" && |
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node.parent.right === node && |
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isModuleExports(node.parent.left, scope)) || |
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// exports = module.exports = {} |
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(node.right.type === "AssignmentExpression" && |
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isModuleExports(node.right.left, scope)) |
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) { |
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return |
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} |
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context.report({ node, messageId: "forbidden" }) |
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}, |
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} |
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}, |
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}
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