Sha256: 8e0880e3932fd0f92d7966f325668c5634b3fa56591073e7dac4243ad23fba28
Contents?: true
Size: 2 KB
Versions: 45
Compression:
Stored size: 2 KB
Contents
/**
* @fileoverview Rule to flag labels that are the same as an identifier
* @author Ian Christian Myers
*/
"use strict";
//------------------------------------------------------------------------------
// Requirements
//------------------------------------------------------------------------------
var astUtils = require("../ast-utils");
//------------------------------------------------------------------------------
// Rule Definition
//------------------------------------------------------------------------------
module.exports = {
meta: {
docs: {
description: "disallow labels that share a name with a variable",
category: "Variables",
recommended: false
},
schema: []
},
create: function(context) {
//--------------------------------------------------------------------------
// Helpers
//--------------------------------------------------------------------------
/**
* Check if the identifier is present inside current scope
* @param {object} scope current scope
* @param {string} name To evaluate
* @returns {boolean} True if its present
* @private
*/
function findIdentifier(scope, name) {
return astUtils.getVariableByName(scope, name) !== null;
}
//--------------------------------------------------------------------------
// Public API
//--------------------------------------------------------------------------
return {
LabeledStatement: function(node) {
// Fetch the innermost scope.
var scope = context.getScope();
// Recursively find the identifier walking up the scope, starting
// with the innermost scope.
if (findIdentifier(scope, node.label.name)) {
context.report(node, "Found identifier with same name as label.");
}
}
};
}
};
Version data entries
45 entries across 45 versions & 2 rubygems