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codeql-action/node_modules/eslint/lib/rules/global-require.js
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/** | |
* @fileoverview Rule for disallowing require() outside of the top-level module context | |
* @author Jamund Ferguson | |
* @deprecated in ESLint v7.0.0 | |
*/ | |
"use strict"; | |
const ACCEPTABLE_PARENTS = new Set([ | |
"AssignmentExpression", | |
"VariableDeclarator", | |
"MemberExpression", | |
"ExpressionStatement", | |
"CallExpression", | |
"ConditionalExpression", | |
"Program", | |
"VariableDeclaration", | |
"ChainExpression" | |
]); | |
/** | |
* Finds the eslint-scope reference in the given scope. | |
* @param {Object} scope The scope to search. | |
* @param {ASTNode} node The identifier node. | |
* @returns {Reference|null} Returns the found reference or null if none were found. | |
*/ | |
function findReference(scope, node) { | |
const references = scope.references.filter(reference => reference.identifier.range[0] === node.range[0] && | |
reference.identifier.range[1] === node.range[1]); | |
if (references.length === 1) { | |
return references[0]; | |
} | |
/* c8 ignore next */ | |
return null; | |
} | |
/** | |
* Checks if the given identifier node is shadowed in the given scope. | |
* @param {Object} scope The current scope. | |
* @param {ASTNode} node The identifier node to check. | |
* @returns {boolean} Whether or not the name is shadowed. | |
*/ | |
function isShadowed(scope, node) { | |
const reference = findReference(scope, node); | |
return reference && reference.resolved && reference.resolved.defs.length > 0; | |
} | |
/** @type {import('../shared/types').Rule} */ | |
module.exports = { | |
meta: { | |
deprecated: true, | |
replacedBy: [], | |
type: "suggestion", | |
docs: { | |
description: "Require `require()` calls to be placed at top-level module scope", | |
recommended: false, | |
url: "https://eslint.org/docs/latest/rules/global-require" | |
}, | |
schema: [], | |
messages: { | |
unexpected: "Unexpected require()." | |
} | |
}, | |
create(context) { | |
const sourceCode = context.sourceCode; | |
return { | |
CallExpression(node) { | |
const currentScope = sourceCode.getScope(node); | |
if (node.callee.name === "require" && !isShadowed(currentScope, node.callee)) { | |
const isGoodRequire = sourceCode.getAncestors(node).every(parent => ACCEPTABLE_PARENTS.has(parent.type)); | |
if (!isGoodRequire) { | |
context.report({ node, messageId: "unexpected" }); | |
} | |
} | |
} | |
}; | |
} | |
}; |