82 lines
2.1 KiB
JavaScript
82 lines
2.1 KiB
JavaScript
import { findVariable } from "@eslint-community/eslint-utils";
|
|
|
|
const ERROR = "error";
|
|
const SUGGESTION = "suggestion";
|
|
const selector = [
|
|
"Identifier",
|
|
'[name="n"]',
|
|
`:not(${[
|
|
"MemberExpression[computed=false] > .property",
|
|
"Property[shorthand=false][computed=false] > .key",
|
|
].join(", ")})`,
|
|
].join("");
|
|
|
|
export default {
|
|
meta: {
|
|
type: "suggestion",
|
|
messages: {
|
|
[ERROR]: "Please rename variable 'n'.",
|
|
[SUGGESTION]: "Rename to `node`.",
|
|
},
|
|
fixable: "code",
|
|
hasSuggestions: true,
|
|
},
|
|
create(context) {
|
|
const variables = new Map();
|
|
return {
|
|
[selector](node) {
|
|
const scope = context.sourceCode.getScope(node);
|
|
const variable = findVariable(scope, node);
|
|
|
|
/* istanbul ignore next */
|
|
if (!variable) {
|
|
return;
|
|
}
|
|
|
|
if (!variables.has(variable)) {
|
|
variables.set(variable, { fixable: true });
|
|
}
|
|
|
|
const data = variables.get(variable);
|
|
if (!data.fixable) {
|
|
return;
|
|
}
|
|
|
|
const nodeVariable = findVariable(scope, "node");
|
|
if (nodeVariable) {
|
|
data.fixable = false;
|
|
}
|
|
},
|
|
"Program:exit"() {
|
|
for (const [variable, { fixable }] of variables.entries()) {
|
|
const [node] = variable.identifiers;
|
|
|
|
const fix = function* (fixer) {
|
|
const identifiers = new Set([
|
|
...variable.identifiers,
|
|
...variable.references.map((reference) => reference.identifier),
|
|
]);
|
|
|
|
for (const identifier of identifiers) {
|
|
const { parent } = identifier;
|
|
if (parent && parent.type === "Property" && parent.shorthand) {
|
|
yield fixer.replaceText(identifier, "n: node");
|
|
} else {
|
|
yield fixer.replaceText(identifier, "node");
|
|
}
|
|
}
|
|
};
|
|
|
|
const problem = { node, messageId: ERROR };
|
|
if (fixable) {
|
|
problem.fix = fix;
|
|
} else {
|
|
problem.suggest = [{ messageId: SUGGESTION, fix }];
|
|
}
|
|
context.report(problem);
|
|
}
|
|
},
|
|
};
|
|
},
|
|
};
|