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diff --git a/tools/node_modules/eslint/lib/rules/no-extra-parens.js b/tools/node_modules/eslint/lib/rules/no-extra-parens.js
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+++ b/tools/node_modules/eslint/lib/rules/no-extra-parens.js
@@ -0,0 +1,745 @@
+/**
+ * @fileoverview Disallow parenthesising higher precedence subexpressions.
+ * @author Michael Ficarra
+ */
+"use strict";
+
+//------------------------------------------------------------------------------
+// Rule Definition
+//------------------------------------------------------------------------------
+
+const astUtils = require("../ast-utils.js");
+
+module.exports = {
+ meta: {
+ docs: {
+ description: "disallow unnecessary parentheses",
+ category: "Possible Errors",
+ recommended: false
+ },
+
+ fixable: "code",
+
+ schema: {
+ anyOf: [
+ {
+ type: "array",
+ items: [
+ {
+ enum: ["functions"]
+ }
+ ],
+ minItems: 0,
+ maxItems: 1
+ },
+ {
+ type: "array",
+ items: [
+ {
+ enum: ["all"]
+ },
+ {
+ type: "object",
+ properties: {
+ conditionalAssign: { type: "boolean" },
+ nestedBinaryExpressions: { type: "boolean" },
+ returnAssign: { type: "boolean" },
+ ignoreJSX: { enum: ["none", "all", "single-line", "multi-line"] },
+ enforceForArrowConditionals: { type: "boolean" }
+ },
+ additionalProperties: false
+ }
+ ],
+ minItems: 0,
+ maxItems: 2
+ }
+ ]
+ }
+ },
+
+ create(context) {
+ const sourceCode = context.getSourceCode();
+
+ const tokensToIgnore = new WeakSet();
+ const isParenthesised = astUtils.isParenthesised.bind(astUtils, sourceCode);
+ const precedence = astUtils.getPrecedence;
+ const ALL_NODES = context.options[0] !== "functions";
+ const EXCEPT_COND_ASSIGN = ALL_NODES && context.options[1] && context.options[1].conditionalAssign === false;
+ const NESTED_BINARY = ALL_NODES && context.options[1] && context.options[1].nestedBinaryExpressions === false;
+ const EXCEPT_RETURN_ASSIGN = ALL_NODES && context.options[1] && context.options[1].returnAssign === false;
+ const IGNORE_JSX = ALL_NODES && context.options[1] && context.options[1].ignoreJSX;
+ const IGNORE_ARROW_CONDITIONALS = ALL_NODES && context.options[1] &&
+ context.options[1].enforceForArrowConditionals === false;
+
+ const PRECEDENCE_OF_ASSIGNMENT_EXPR = precedence({ type: "AssignmentExpression" });
+ const PRECEDENCE_OF_UPDATE_EXPR = precedence({ type: "UpdateExpression" });
+
+ /**
+ * Determines if this rule should be enforced for a node given the current configuration.
+ * @param {ASTNode} node - The node to be checked.
+ * @returns {boolean} True if the rule should be enforced for this node.
+ * @private
+ */
+ function ruleApplies(node) {
+ if (node.type === "JSXElement") {
+ const isSingleLine = node.loc.start.line === node.loc.end.line;
+
+ switch (IGNORE_JSX) {
+
+ // Exclude this JSX element from linting
+ case "all":
+ return false;
+
+ // Exclude this JSX element if it is multi-line element
+ case "multi-line":
+ return isSingleLine;
+
+ // Exclude this JSX element if it is single-line element
+ case "single-line":
+ return !isSingleLine;
+
+ // Nothing special to be done for JSX elements
+ case "none":
+ break;
+
+ // no default
+ }
+ }
+
+ return ALL_NODES || node.type === "FunctionExpression" || node.type === "ArrowFunctionExpression";
+ }
+
+ /**
+ * Determines if a node is surrounded by parentheses twice.
+ * @param {ASTNode} node - The node to be checked.
+ * @returns {boolean} True if the node is doubly parenthesised.
+ * @private
+ */
+ function isParenthesisedTwice(node) {
+ const previousToken = sourceCode.getTokenBefore(node, 1),
+ nextToken = sourceCode.getTokenAfter(node, 1);
+
+ return isParenthesised(node) && previousToken && nextToken &&
+ astUtils.isOpeningParenToken(previousToken) && previousToken.range[1] <= node.range[0] &&
+ astUtils.isClosingParenToken(nextToken) && nextToken.range[0] >= node.range[1];
+ }
+
+ /**
+ * Determines if a node is surrounded by (potentially) invalid parentheses.
+ * @param {ASTNode} node - The node to be checked.
+ * @returns {boolean} True if the node is incorrectly parenthesised.
+ * @private
+ */
+ function hasExcessParens(node) {
+ return ruleApplies(node) && isParenthesised(node);
+ }
+
+ /**
+ * Determines if a node that is expected to be parenthesised is surrounded by
+ * (potentially) invalid extra parentheses.
+ * @param {ASTNode} node - The node to be checked.
+ * @returns {boolean} True if the node is has an unexpected extra pair of parentheses.
+ * @private
+ */
+ function hasDoubleExcessParens(node) {
+ return ruleApplies(node) && isParenthesisedTwice(node);
+ }
+
+ /**
+ * Determines if a node test expression is allowed to have a parenthesised assignment
+ * @param {ASTNode} node - The node to be checked.
+ * @returns {boolean} True if the assignment can be parenthesised.
+ * @private
+ */
+ function isCondAssignException(node) {
+ return EXCEPT_COND_ASSIGN && node.test.type === "AssignmentExpression";
+ }
+
+ /**
+ * Determines if a node is in a return statement
+ * @param {ASTNode} node - The node to be checked.
+ * @returns {boolean} True if the node is in a return statement.
+ * @private
+ */
+ function isInReturnStatement(node) {
+ while (node) {
+ if (node.type === "ReturnStatement" ||
+ (node.type === "ArrowFunctionExpression" && node.body.type !== "BlockStatement")) {
+ return true;
+ }
+ node = node.parent;
+ }
+
+ return false;
+ }
+
+ /**
+ * Determines if a constructor function is newed-up with parens
+ * @param {ASTNode} newExpression - The NewExpression node to be checked.
+ * @returns {boolean} True if the constructor is called with parens.
+ * @private
+ */
+ function isNewExpressionWithParens(newExpression) {
+ const lastToken = sourceCode.getLastToken(newExpression);
+ const penultimateToken = sourceCode.getTokenBefore(lastToken);
+
+ return newExpression.arguments.length > 0 || astUtils.isOpeningParenToken(penultimateToken) && astUtils.isClosingParenToken(lastToken);
+ }
+
+ /**
+ * Determines if a node is or contains an assignment expression
+ * @param {ASTNode} node - The node to be checked.
+ * @returns {boolean} True if the node is or contains an assignment expression.
+ * @private
+ */
+ function containsAssignment(node) {
+ if (node.type === "AssignmentExpression") {
+ return true;
+ }
+ if (node.type === "ConditionalExpression" &&
+ (node.consequent.type === "AssignmentExpression" || node.alternate.type === "AssignmentExpression")) {
+ return true;
+ }
+ if ((node.left && node.left.type === "AssignmentExpression") ||
+ (node.right && node.right.type === "AssignmentExpression")) {
+ return true;
+ }
+
+ return false;
+ }
+
+ /**
+ * Determines if a node is contained by or is itself a return statement and is allowed to have a parenthesised assignment
+ * @param {ASTNode} node - The node to be checked.
+ * @returns {boolean} True if the assignment can be parenthesised.
+ * @private
+ */
+ function isReturnAssignException(node) {
+ if (!EXCEPT_RETURN_ASSIGN || !isInReturnStatement(node)) {
+ return false;
+ }
+
+ if (node.type === "ReturnStatement") {
+ return node.argument && containsAssignment(node.argument);
+ }
+ if (node.type === "ArrowFunctionExpression" && node.body.type !== "BlockStatement") {
+ return containsAssignment(node.body);
+ }
+ return containsAssignment(node);
+
+ }
+
+ /**
+ * Determines if a node following a [no LineTerminator here] restriction is
+ * surrounded by (potentially) invalid extra parentheses.
+ * @param {Token} token - The token preceding the [no LineTerminator here] restriction.
+ * @param {ASTNode} node - The node to be checked.
+ * @returns {boolean} True if the node is incorrectly parenthesised.
+ * @private
+ */
+ function hasExcessParensNoLineTerminator(token, node) {
+ if (token.loc.end.line === node.loc.start.line) {
+ return hasExcessParens(node);
+ }
+
+ return hasDoubleExcessParens(node);
+ }
+
+ /**
+ * Determines whether a node should be preceded by an additional space when removing parens
+ * @param {ASTNode} node node to evaluate; must be surrounded by parentheses
+ * @returns {boolean} `true` if a space should be inserted before the node
+ * @private
+ */
+ function requiresLeadingSpace(node) {
+ const leftParenToken = sourceCode.getTokenBefore(node);
+ const tokenBeforeLeftParen = sourceCode.getTokenBefore(node, 1);
+ const firstToken = sourceCode.getFirstToken(node);
+
+ return tokenBeforeLeftParen &&
+ tokenBeforeLeftParen.range[1] === leftParenToken.range[0] &&
+ leftParenToken.range[1] === firstToken.range[0] &&
+ !astUtils.canTokensBeAdjacent(tokenBeforeLeftParen, firstToken);
+ }
+
+ /**
+ * Determines whether a node should be followed by an additional space when removing parens
+ * @param {ASTNode} node node to evaluate; must be surrounded by parentheses
+ * @returns {boolean} `true` if a space should be inserted after the node
+ * @private
+ */
+ function requiresTrailingSpace(node) {
+ const nextTwoTokens = sourceCode.getTokensAfter(node, { count: 2 });
+ const rightParenToken = nextTwoTokens[0];
+ const tokenAfterRightParen = nextTwoTokens[1];
+ const tokenBeforeRightParen = sourceCode.getLastToken(node);
+
+ return rightParenToken && tokenAfterRightParen &&
+ !sourceCode.isSpaceBetweenTokens(rightParenToken, tokenAfterRightParen) &&
+ !astUtils.canTokensBeAdjacent(tokenBeforeRightParen, tokenAfterRightParen);
+ }
+
+ /**
+ * Determines if a given expression node is an IIFE
+ * @param {ASTNode} node The node to check
+ * @returns {boolean} `true` if the given node is an IIFE
+ */
+ function isIIFE(node) {
+ return node.type === "CallExpression" && node.callee.type === "FunctionExpression";
+ }
+
+ /**
+ * Report the node
+ * @param {ASTNode} node node to evaluate
+ * @returns {void}
+ * @private
+ */
+ function report(node) {
+ const leftParenToken = sourceCode.getTokenBefore(node);
+ const rightParenToken = sourceCode.getTokenAfter(node);
+
+ if (!isParenthesisedTwice(node)) {
+ if (tokensToIgnore.has(sourceCode.getFirstToken(node))) {
+ return;
+ }
+
+ if (isIIFE(node) && !isParenthesised(node.callee)) {
+ return;
+ }
+ }
+
+ context.report({
+ node,
+ loc: leftParenToken.loc.start,
+ message: "Gratuitous parentheses around expression.",
+ fix(fixer) {
+ const parenthesizedSource = sourceCode.text.slice(leftParenToken.range[1], rightParenToken.range[0]);
+
+ return fixer.replaceTextRange([
+ leftParenToken.range[0],
+ rightParenToken.range[1]
+ ], (requiresLeadingSpace(node) ? " " : "") + parenthesizedSource + (requiresTrailingSpace(node) ? " " : ""));
+ }
+ });
+ }
+
+ /**
+ * Evaluate Unary update
+ * @param {ASTNode} node node to evaluate
+ * @returns {void}
+ * @private
+ */
+ function checkUnaryUpdate(node) {
+ if (node.type === "UnaryExpression" && node.argument.type === "BinaryExpression" && node.argument.operator === "**") {
+ return;
+ }
+
+ if (hasExcessParens(node.argument) && precedence(node.argument) >= precedence(node)) {
+ report(node.argument);
+ }
+ }
+
+ /**
+ * Check if a member expression contains a call expression
+ * @param {ASTNode} node MemberExpression node to evaluate
+ * @returns {boolean} true if found, false if not
+ */
+ function doesMemberExpressionContainCallExpression(node) {
+ let currentNode = node.object;
+ let currentNodeType = node.object.type;
+
+ while (currentNodeType === "MemberExpression") {
+ currentNode = currentNode.object;
+ currentNodeType = currentNode.type;
+ }
+
+ return currentNodeType === "CallExpression";
+ }
+
+ /**
+ * Evaluate a new call
+ * @param {ASTNode} node node to evaluate
+ * @returns {void}
+ * @private
+ */
+ function checkCallNew(node) {
+ const callee = node.callee;
+
+ if (hasExcessParens(callee) && precedence(callee) >= precedence(node)) {
+ const hasNewParensException = callee.type === "NewExpression" && !isNewExpressionWithParens(callee);
+
+ if (
+ hasDoubleExcessParens(callee) ||
+ !isIIFE(node) && !hasNewParensException && !(
+
+ /*
+ * Allow extra parens around a new expression if
+ * there are intervening parentheses.
+ */
+ callee.type === "MemberExpression" &&
+ doesMemberExpressionContainCallExpression(callee)
+ )
+ ) {
+ report(node.callee);
+ }
+ }
+ if (node.arguments.length === 1) {
+ if (hasDoubleExcessParens(node.arguments[0]) && precedence(node.arguments[0]) >= PRECEDENCE_OF_ASSIGNMENT_EXPR) {
+ report(node.arguments[0]);
+ }
+ } else {
+ node.arguments
+ .filter(arg => hasExcessParens(arg) && precedence(arg) >= PRECEDENCE_OF_ASSIGNMENT_EXPR)
+ .forEach(report);
+ }
+ }
+
+ /**
+ * Evaluate binary logicals
+ * @param {ASTNode} node node to evaluate
+ * @returns {void}
+ * @private
+ */
+ function checkBinaryLogical(node) {
+ const prec = precedence(node);
+ const leftPrecedence = precedence(node.left);
+ const rightPrecedence = precedence(node.right);
+ const isExponentiation = node.operator === "**";
+ const shouldSkipLeft = (NESTED_BINARY && (node.left.type === "BinaryExpression" || node.left.type === "LogicalExpression")) ||
+ node.left.type === "UnaryExpression" && isExponentiation;
+ const shouldSkipRight = NESTED_BINARY && (node.right.type === "BinaryExpression" || node.right.type === "LogicalExpression");
+
+ if (!shouldSkipLeft && hasExcessParens(node.left) && (leftPrecedence > prec || (leftPrecedence === prec && !isExponentiation))) {
+ report(node.left);
+ }
+ if (!shouldSkipRight && hasExcessParens(node.right) && (rightPrecedence > prec || (rightPrecedence === prec && isExponentiation))) {
+ report(node.right);
+ }
+ }
+
+ /**
+ * Check the parentheses around the super class of the given class definition.
+ * @param {ASTNode} node The node of class declarations to check.
+ * @returns {void}
+ */
+ function checkClass(node) {
+ if (!node.superClass) {
+ return;
+ }
+
+ /*
+ * If `node.superClass` is a LeftHandSideExpression, parentheses are extra.
+ * Otherwise, parentheses are needed.
+ */
+ const hasExtraParens = precedence(node.superClass) > PRECEDENCE_OF_UPDATE_EXPR
+ ? hasExcessParens(node.superClass)
+ : hasDoubleExcessParens(node.superClass);
+
+ if (hasExtraParens) {
+ report(node.superClass);
+ }
+ }
+
+ /**
+ * Check the parentheses around the argument of the given spread operator.
+ * @param {ASTNode} node The node of spread elements/properties to check.
+ * @returns {void}
+ */
+ function checkSpreadOperator(node) {
+ const hasExtraParens = precedence(node.argument) >= PRECEDENCE_OF_ASSIGNMENT_EXPR
+ ? hasExcessParens(node.argument)
+ : hasDoubleExcessParens(node.argument);
+
+ if (hasExtraParens) {
+ report(node.argument);
+ }
+ }
+
+ /**
+ * Checks the parentheses for an ExpressionStatement or ExportDefaultDeclaration
+ * @param {ASTNode} node The ExpressionStatement.expression or ExportDefaultDeclaration.declaration node
+ * @returns {void}
+ */
+ function checkExpressionOrExportStatement(node) {
+ const firstToken = isParenthesised(node) ? sourceCode.getTokenBefore(node) : sourceCode.getFirstToken(node);
+ const secondToken = sourceCode.getTokenAfter(firstToken, astUtils.isNotOpeningParenToken);
+ const thirdToken = secondToken ? sourceCode.getTokenAfter(secondToken) : null;
+
+ if (
+ astUtils.isOpeningParenToken(firstToken) &&
+ (
+ astUtils.isOpeningBraceToken(secondToken) ||
+ secondToken.type === "Keyword" && (
+ secondToken.value === "function" ||
+ secondToken.value === "class" ||
+ secondToken.value === "let" && astUtils.isOpeningBracketToken(sourceCode.getTokenAfter(secondToken, astUtils.isNotClosingParenToken))
+ ) ||
+ secondToken && secondToken.type === "Identifier" && secondToken.value === "async" && thirdToken && thirdToken.type === "Keyword" && thirdToken.value === "function"
+ )
+ ) {
+ tokensToIgnore.add(secondToken);
+ }
+
+ if (hasExcessParens(node)) {
+ report(node);
+ }
+ }
+
+ return {
+ ArrayExpression(node) {
+ node.elements
+ .filter(e => e && hasExcessParens(e) && precedence(e) >= PRECEDENCE_OF_ASSIGNMENT_EXPR)
+ .forEach(report);
+ },
+
+ ArrowFunctionExpression(node) {
+ if (isReturnAssignException(node)) {
+ return;
+ }
+
+ if (node.body.type === "ConditionalExpression" &&
+ IGNORE_ARROW_CONDITIONALS &&
+ !isParenthesisedTwice(node.body)
+ ) {
+ return;
+ }
+
+ if (node.body.type !== "BlockStatement") {
+ const firstBodyToken = sourceCode.getFirstToken(node.body, astUtils.isNotOpeningParenToken);
+ const tokenBeforeFirst = sourceCode.getTokenBefore(firstBodyToken);
+
+ if (astUtils.isOpeningParenToken(tokenBeforeFirst) && astUtils.isOpeningBraceToken(firstBodyToken)) {
+ tokensToIgnore.add(firstBodyToken);
+ }
+ if (hasExcessParens(node.body) && precedence(node.body) >= PRECEDENCE_OF_ASSIGNMENT_EXPR) {
+ report(node.body);
+ }
+ }
+ },
+
+ AssignmentExpression(node) {
+ if (isReturnAssignException(node)) {
+ return;
+ }
+
+ if (hasExcessParens(node.right) && precedence(node.right) >= precedence(node)) {
+ report(node.right);
+ }
+ },
+
+ BinaryExpression: checkBinaryLogical,
+ CallExpression: checkCallNew,
+
+ ConditionalExpression(node) {
+ if (isReturnAssignException(node)) {
+ return;
+ }
+
+ if (hasExcessParens(node.test) && precedence(node.test) >= precedence({ type: "LogicalExpression", operator: "||" })) {
+ report(node.test);
+ }
+
+ if (hasExcessParens(node.consequent) && precedence(node.consequent) >= PRECEDENCE_OF_ASSIGNMENT_EXPR) {
+ report(node.consequent);
+ }
+
+ if (hasExcessParens(node.alternate) && precedence(node.alternate) >= PRECEDENCE_OF_ASSIGNMENT_EXPR) {
+ report(node.alternate);
+ }
+ },
+
+ DoWhileStatement(node) {
+ if (hasDoubleExcessParens(node.test) && !isCondAssignException(node)) {
+ report(node.test);
+ }
+ },
+
+ ExportDefaultDeclaration: node => checkExpressionOrExportStatement(node.declaration),
+ ExpressionStatement: node => checkExpressionOrExportStatement(node.expression),
+
+ "ForInStatement, ForOfStatement"(node) {
+ if (node.left.type !== "VariableDeclarator") {
+ const firstLeftToken = sourceCode.getFirstToken(node.left, astUtils.isNotOpeningParenToken);
+
+ if (
+ firstLeftToken.value === "let" && (
+
+ /*
+ * If `let` is the only thing on the left side of the loop, it's the loop variable: `for ((let) of foo);`
+ * Removing it will cause a syntax error, because it will be parsed as the start of a VariableDeclarator.
+ */
+ firstLeftToken.range[1] === node.left.range[1] ||
+
+ /*
+ * If `let` is followed by a `[` token, it's a property access on the `let` value: `for ((let[foo]) of bar);`
+ * Removing it will cause the property access to be parsed as a destructuring declaration of `foo` instead.
+ */
+ astUtils.isOpeningBracketToken(
+ sourceCode.getTokenAfter(firstLeftToken, astUtils.isNotClosingParenToken)
+ )
+ )
+ ) {
+ tokensToIgnore.add(firstLeftToken);
+ }
+ }
+ if (hasExcessParens(node.right)) {
+ report(node.right);
+ }
+ if (hasExcessParens(node.left)) {
+ report(node.left);
+ }
+ },
+
+ ForStatement(node) {
+ if (node.init && hasExcessParens(node.init)) {
+ report(node.init);
+ }
+
+ if (node.test && hasExcessParens(node.test) && !isCondAssignException(node)) {
+ report(node.test);
+ }
+
+ if (node.update && hasExcessParens(node.update)) {
+ report(node.update);
+ }
+ },
+
+ IfStatement(node) {
+ if (hasDoubleExcessParens(node.test) && !isCondAssignException(node)) {
+ report(node.test);
+ }
+ },
+
+ LogicalExpression: checkBinaryLogical,
+
+ MemberExpression(node) {
+ const nodeObjHasExcessParens = hasExcessParens(node.object);
+
+ if (
+ nodeObjHasExcessParens &&
+ precedence(node.object) >= precedence(node) &&
+ (
+ node.computed ||
+ !(
+ astUtils.isDecimalInteger(node.object) ||
+
+ // RegExp literal is allowed to have parens (#1589)
+ (node.object.type === "Literal" && node.object.regex)
+ )
+ )
+ ) {
+ report(node.object);
+ }
+
+ if (nodeObjHasExcessParens &&
+ node.object.type === "CallExpression" &&
+ node.parent.type !== "NewExpression") {
+ report(node.object);
+ }
+
+ if (node.computed && hasExcessParens(node.property)) {
+ report(node.property);
+ }
+ },
+
+ NewExpression: checkCallNew,
+
+ ObjectExpression(node) {
+ node.properties
+ .filter(property => {
+ const value = property.value;
+
+ return value && hasExcessParens(value) && precedence(value) >= PRECEDENCE_OF_ASSIGNMENT_EXPR;
+ }).forEach(property => report(property.value));
+ },
+
+ ReturnStatement(node) {
+ const returnToken = sourceCode.getFirstToken(node);
+
+ if (isReturnAssignException(node)) {
+ return;
+ }
+
+ if (node.argument &&
+ hasExcessParensNoLineTerminator(returnToken, node.argument) &&
+
+ // RegExp literal is allowed to have parens (#1589)
+ !(node.argument.type === "Literal" && node.argument.regex)) {
+ report(node.argument);
+ }
+ },
+
+ SequenceExpression(node) {
+ node.expressions
+ .filter(e => hasExcessParens(e) && precedence(e) >= precedence(node))
+ .forEach(report);
+ },
+
+ SwitchCase(node) {
+ if (node.test && hasExcessParens(node.test)) {
+ report(node.test);
+ }
+ },
+
+ SwitchStatement(node) {
+ if (hasDoubleExcessParens(node.discriminant)) {
+ report(node.discriminant);
+ }
+ },
+
+ ThrowStatement(node) {
+ const throwToken = sourceCode.getFirstToken(node);
+
+ if (hasExcessParensNoLineTerminator(throwToken, node.argument)) {
+ report(node.argument);
+ }
+ },
+
+ UnaryExpression: checkUnaryUpdate,
+ UpdateExpression: checkUnaryUpdate,
+ AwaitExpression: checkUnaryUpdate,
+
+ VariableDeclarator(node) {
+ if (node.init && hasExcessParens(node.init) &&
+ precedence(node.init) >= PRECEDENCE_OF_ASSIGNMENT_EXPR &&
+
+ // RegExp literal is allowed to have parens (#1589)
+ !(node.init.type === "Literal" && node.init.regex)) {
+ report(node.init);
+ }
+ },
+
+ WhileStatement(node) {
+ if (hasDoubleExcessParens(node.test) && !isCondAssignException(node)) {
+ report(node.test);
+ }
+ },
+
+ WithStatement(node) {
+ if (hasDoubleExcessParens(node.object)) {
+ report(node.object);
+ }
+ },
+
+ YieldExpression(node) {
+ if (node.argument) {
+ const yieldToken = sourceCode.getFirstToken(node);
+
+ if ((precedence(node.argument) >= precedence(node) &&
+ hasExcessParensNoLineTerminator(yieldToken, node.argument)) ||
+ hasDoubleExcessParens(node.argument)) {
+ report(node.argument);
+ }
+ }
+ },
+
+ ClassDeclaration: checkClass,
+ ClassExpression: checkClass,
+
+ SpreadElement: checkSpreadOperator,
+ SpreadProperty: checkSpreadOperator,
+ ExperimentalSpreadProperty: checkSpreadOperator
+ };
+
+ }
+};