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remove timer and simon
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+78
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/**
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* @fileoverview Rule to flag use of an empty block statement
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* @author Nicholas C. Zakas
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*/
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"use strict";
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//------------------------------------------------------------------------------
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// Requirements
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//------------------------------------------------------------------------------
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const astUtils = require("../ast-utils");
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//------------------------------------------------------------------------------
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// Rule Definition
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//------------------------------------------------------------------------------
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module.exports = {
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meta: {
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docs: {
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description: "disallow empty block statements",
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category: "Possible Errors",
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recommended: true
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},
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schema: [
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{
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type: "object",
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properties: {
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allowEmptyCatch: {
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type: "boolean"
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}
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},
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additionalProperties: false
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}
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]
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},
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create(context) {
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const options = context.options[0] || {},
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allowEmptyCatch = options.allowEmptyCatch || false;
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const sourceCode = context.getSourceCode();
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return {
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BlockStatement(node) {
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// if the body is not empty, we can just return immediately
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if (node.body.length !== 0) {
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return;
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}
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// a function is generally allowed to be empty
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if (astUtils.isFunction(node.parent)) {
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return;
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}
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if (allowEmptyCatch && node.parent.type === "CatchClause") {
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return;
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}
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// any other block is only allowed to be empty, if it contains a comment
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if (sourceCode.getCommentsInside(node).length > 0) {
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return;
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}
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context.report({ node, message: "Empty block statement." });
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},
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SwitchStatement(node) {
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if (typeof node.cases === "undefined" || node.cases.length === 0) {
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context.report({ node, message: "Empty switch statement." });
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}
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}
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};
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}
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};
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