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/**
* @fileoverview Rule to flag use of unary increment and decrement operators.
* @author Ian Christian Myers
* @author Brody McKee (github.com/mrmckeb)
*/
"use strict";
//------------------------------------------------------------------------------
// Rule Definition
//------------------------------------------------------------------------------
module.exports = {
meta: {
docs: {
description: "disallow the unary operators `++` and `--`",
category: "Stylistic Issues",
recommended: false
},
schema: [
{
type: "object",
properties: {
allowForLoopAfterthoughts: {
type: "boolean"
}
},
additionalProperties: false
}
]
},
create(context) {
const config = context.options[0];
let allowInForAfterthought = false;
if (typeof config === "object") {
allowInForAfterthought = config.allowForLoopAfterthoughts === true;
}
return {
UpdateExpression(node) {
if (allowInForAfterthought && node.parent.type === "ForStatement") {
return;
}
context.report({
node,
message: "Unary operator '{{operator}}' used.",
data: {
operator: node.operator
}
});
}
};
}
};
|
