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/**
* @fileoverview Reject calls to ChromeUtils.import(..., null). This allows to
* retrieve the global object for the JSM, instead we should rely on explicitly
* exported symbols.
*
* 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
*/
"use strict";
function isIdentifier(node, id) {
return node && node.type === "Identifier" && node.name === id;
}
function getRangeAfterArgToEnd(context, argNumber, args) {
let sourceCode = context.getSourceCode();
return [
sourceCode.getTokenAfter(args[argNumber]).range[0],
args[args.length - 1].range[1],
];
}
module.exports = {
meta: {
docs: {
},
hasSuggestions: true,
messages: {
importOnlyOneArg: "ChromeUtils.import only takes one argument.",
importOnlyOneArgSuggestion: "Remove the unnecessary parameters.",
},
schema: [],
type: "problem",
},
create(context) {
return {
CallExpression(node) {
let { callee } = node;
if (
isIdentifier(callee.object, "ChromeUtils") &&
isIdentifier(callee.property, "import") &&
node.arguments.length >= 2
) {
context.report({
node,
messageId: "importOnlyOneArg",
suggest: [
{
messageId: "importOnlyOneArgSuggestion",
fix: fixer => {
return fixer.removeRange(
getRangeAfterArgToEnd(context, 0, node.arguments)
);
},
},
],
});
}
},
};
},
};