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/**
* @fileoverview Rule to require sorting of variables within a single Variable Declaration block
* @author Ilya Volodin
*/
"use strict";
//------------------------------------------------------------------------------
// Rule Definition
//------------------------------------------------------------------------------
module.exports = {
meta: {
docs: {
description: "require variables within the same declaration block to be sorted",
category: "Stylistic Issues",
recommended: false
},
schema: [
{
type: "object",
properties: {
ignoreCase: {
type: "boolean"
}
},
additionalProperties: false
}
]
},
create: function(context) {
const configuration = context.options[0] || {},
ignoreCase = configuration.ignoreCase || false;
return {
VariableDeclaration: function(node) {
node.declarations.reduce(function(memo, decl) {
if (decl.id.type === "ObjectPattern" || decl.id.type === "ArrayPattern") {
return memo;
}
let lastVariableName = memo.id.name,
currenVariableName = decl.id.name;
if (ignoreCase) {
lastVariableName = lastVariableName.toLowerCase();
currenVariableName = currenVariableName.toLowerCase();
}
if (currenVariableName < lastVariableName) {
context.report(decl, "Variables within the same declaration block should be sorted alphabetically.");
return memo;
} else {
return decl;
}
}, node.declarations[0]);
}
};
}
};
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