const ruleComposer = require("eslint-rule-composer");
const eslint = require("eslint");
const rule = new eslint.Linter().getRules().get("no-unused-expressions");
function isFinalStatementInBlockStatement(node) {
const parent = node.parent;
return /^(?:If|Expression)Statement$/.test(node.type) && parent.type === "BlockStatement" && parent.body[parent.body.length - 1] === node;
}
function isInDoStatement(node) {
if (!node) return false;
if (node.type === "DoExpression") return true;
if (node.type === "IfStatement" && node.parent && node.parent.type === "IfStatement") {
return isInDoStatement(node.parent);
}
if (isFinalStatementInBlockStatement(node)) {
return isInDoStatement(node.parent.parent);
}
return false;
}
function isOptionalCallExpression(node) {
return !!node && node.type === "ExpressionStatement" && node.expression.type === "ChainExpression" && node.expression.expression.type === "CallExpression";
}
module.exports = ruleComposer.filterReports(rule, problem => !isInDoStatement(problem.node) && !isOptionalCallExpression(problem.node));
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