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234 lines
9.8 KiB
234 lines
9.8 KiB
1 month ago
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/**
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* @fileoverview Rule to control spacing within function calls
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* @author Matt DuVall <http://www.mattduvall.com>
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* @deprecated in ESLint v8.53.0
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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("./utils/ast-utils");
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//------------------------------------------------------------------------------
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// Rule Definition
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//------------------------------------------------------------------------------
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/** @type {import('../shared/types').Rule} */
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module.exports = {
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meta: {
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deprecated: true,
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replacedBy: [],
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type: "layout",
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docs: {
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description: "Require or disallow spacing between function identifiers and their invocations",
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recommended: false,
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url: "https://eslint.org/docs/latest/rules/func-call-spacing"
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},
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fixable: "whitespace",
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schema: {
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anyOf: [
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{
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type: "array",
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items: [
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{
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enum: ["never"]
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}
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],
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minItems: 0,
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maxItems: 1
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},
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{
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type: "array",
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items: [
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{
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enum: ["always"]
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},
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{
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type: "object",
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properties: {
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allowNewlines: {
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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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minItems: 0,
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maxItems: 2
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}
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]
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},
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messages: {
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unexpectedWhitespace: "Unexpected whitespace between function name and paren.",
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unexpectedNewline: "Unexpected newline between function name and paren.",
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missing: "Missing space between function name and paren."
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}
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},
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create(context) {
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const never = context.options[0] !== "always";
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const allowNewlines = !never && context.options[1] && context.options[1].allowNewlines;
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const sourceCode = context.sourceCode;
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const text = sourceCode.getText();
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/**
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* Check if open space is present in a function name
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* @param {ASTNode} node node to evaluate
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* @param {Token} leftToken The last token of the callee. This may be the closing parenthesis that encloses the callee.
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* @param {Token} rightToken Tha first token of the arguments. this is the opening parenthesis that encloses the arguments.
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* @returns {void}
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* @private
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*/
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function checkSpacing(node, leftToken, rightToken) {
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const textBetweenTokens = text.slice(leftToken.range[1], rightToken.range[0]).replace(/\/\*.*?\*\//gu, "");
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const hasWhitespace = /\s/u.test(textBetweenTokens);
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const hasNewline = hasWhitespace && astUtils.LINEBREAK_MATCHER.test(textBetweenTokens);
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/*
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* never allowNewlines hasWhitespace hasNewline message
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* F F F F Missing space between function name and paren.
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* F F F T (Invalid `!hasWhitespace && hasNewline`)
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* F F T T Unexpected newline between function name and paren.
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* F F T F (OK)
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* F T T F (OK)
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* F T T T (OK)
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* F T F T (Invalid `!hasWhitespace && hasNewline`)
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* F T F F Missing space between function name and paren.
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* T T F F (Invalid `never && allowNewlines`)
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* T T F T (Invalid `!hasWhitespace && hasNewline`)
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* T T T T (Invalid `never && allowNewlines`)
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* T T T F (Invalid `never && allowNewlines`)
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* T F T F Unexpected space between function name and paren.
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* T F T T Unexpected space between function name and paren.
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* T F F T (Invalid `!hasWhitespace && hasNewline`)
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* T F F F (OK)
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*
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* T T Unexpected space between function name and paren.
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* F F Missing space between function name and paren.
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* F F T Unexpected newline between function name and paren.
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*/
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if (never && hasWhitespace) {
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context.report({
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node,
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loc: {
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start: leftToken.loc.end,
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end: {
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line: rightToken.loc.start.line,
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column: rightToken.loc.start.column - 1
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}
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},
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messageId: "unexpectedWhitespace",
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fix(fixer) {
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// Don't remove comments.
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if (sourceCode.commentsExistBetween(leftToken, rightToken)) {
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return null;
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}
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// If `?.` exists, it doesn't hide no-unexpected-multiline errors
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if (node.optional) {
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return fixer.replaceTextRange([leftToken.range[1], rightToken.range[0]], "?.");
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}
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/*
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* Only autofix if there is no newline
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* https://github.com/eslint/eslint/issues/7787
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*/
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if (hasNewline) {
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return null;
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}
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return fixer.removeRange([leftToken.range[1], rightToken.range[0]]);
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}
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});
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} else if (!never && !hasWhitespace) {
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context.report({
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node,
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loc: {
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start: {
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line: leftToken.loc.end.line,
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column: leftToken.loc.end.column - 1
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},
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end: rightToken.loc.start
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},
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messageId: "missing",
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fix(fixer) {
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if (node.optional) {
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return null; // Not sure if inserting a space to either before/after `?.` token.
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}
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return fixer.insertTextBefore(rightToken, " ");
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}
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});
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} else if (!never && !allowNewlines && hasNewline) {
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context.report({
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node,
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loc: {
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start: leftToken.loc.end,
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end: rightToken.loc.start
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},
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messageId: "unexpectedNewline",
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fix(fixer) {
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/*
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* Only autofix if there is no newline
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* https://github.com/eslint/eslint/issues/7787
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* But if `?.` exists, it doesn't hide no-unexpected-multiline errors
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*/
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if (!node.optional) {
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return null;
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}
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// Don't remove comments.
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if (sourceCode.commentsExistBetween(leftToken, rightToken)) {
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return null;
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}
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const range = [leftToken.range[1], rightToken.range[0]];
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const qdToken = sourceCode.getTokenAfter(leftToken);
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if (qdToken.range[0] === leftToken.range[1]) {
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return fixer.replaceTextRange(range, "?. ");
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}
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if (qdToken.range[1] === rightToken.range[0]) {
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return fixer.replaceTextRange(range, " ?.");
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}
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return fixer.replaceTextRange(range, " ?. ");
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}
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});
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}
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}
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return {
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"CallExpression, NewExpression"(node) {
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const lastToken = sourceCode.getLastToken(node);
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const lastCalleeToken = sourceCode.getLastToken(node.callee);
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const parenToken = sourceCode.getFirstTokenBetween(lastCalleeToken, lastToken, astUtils.isOpeningParenToken);
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const prevToken = parenToken && sourceCode.getTokenBefore(parenToken, astUtils.isNotQuestionDotToken);
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// Parens in NewExpression are optional
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if (!(parenToken && parenToken.range[1] < node.range[1])) {
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return;
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}
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checkSpacing(node, prevToken, parenToken);
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},
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ImportExpression(node) {
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const leftToken = sourceCode.getFirstToken(node);
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const rightToken = sourceCode.getTokenAfter(leftToken);
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checkSpacing(node, leftToken, rightToken);
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}
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};
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}
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};
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