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/**
* @fileoverview warns against using hungarian notation in function arguments
* (i.e. aArg).
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
"use strict";
// -----------------------------------------------------------------------------
// Rule Definition
// -----------------------------------------------------------------------------
module.exports = function(context) {
// ---------------------------------------------------------------------------
// Helpers
// ---------------------------------------------------------------------------
function isPrefixed(name) {
return name.length >= 2 && /^a[A-Z]/.test(name);
}
function deHungarianize(name) {
return name.substring(1, 2).toLowerCase() + name.substring(2, name.length);
}
function checkFunction(node) {
for (var i = 0; i < node.params.length; i++) {
var param = node.params[i];
if (param.name && isPrefixed(param.name)) {
var errorObj = {
name: param.name,
suggestion: deHungarianize(param.name),
};
context.report(
param,
"Parameter '{{name}}' uses Hungarian Notation, " +
"consider using '{{suggestion}}' instead.",
errorObj
);
}
}
}
// ---------------------------------------------------------------------------
// Public
// ---------------------------------------------------------------------------
return {
FunctionDeclaration: checkFunction,
ArrowFunctionExpression: checkFunction,
FunctionExpression: checkFunction,
};
};
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