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37 lines
950 B
37 lines
950 B
'use strict';
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const isSameNode = require('./is-same-node');
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/**
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* Finds the eslint-scope reference in the given scope.
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* @param {Object} scope The scope to search.
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* @param {ASTNode} node The identifier node.
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* @returns {Reference|undefined} Returns the found reference or null if none were found.
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*/
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function findReference(scope, node) {
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const references = scope.references
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.filter(reference => isSameNode(reference.identifier, node));
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if (references.length === 1) {
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return references[0];
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}
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}
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/**
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* Checks if the given identifier node is shadowed in the given scope.
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* @param {Object} scope The current scope.
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* @param {string} node The identifier node to check
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* @returns {boolean} Whether or not the name is shadowed.
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*/
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function isShadowed(scope, node) {
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const reference = findReference(scope, node);
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return (
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reference &&
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reference.resolved &&
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reference.resolved.defs.length > 0
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);
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}
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module.exports = isShadowed;
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