eslint-plugin-stylistic-compat/dist/rules/space-before-function-paren.js

Compatibility version of @stylistic/eslint-plugin for Node.js >= 12 and ESLint v8

'use strict';

var _someInstanceProperty = require('@babel/runtime-corejs3/core-js/instance/some');
var _reduceInstanceProperty = require('@babel/runtime-corejs3/core-js/instance/reduce');
var utils = require('../utils.js');
var vendor = require('../vendor.js');
require('@babel/runtime-corejs3/core-js/object/from-entries');
require('@babel/runtime-corejs3/core-js/instance/map');
require('@babel/runtime-corejs3/core-js/instance/filter');
require('@babel/runtime-corejs3/core-js/object/entries');
require('@babel/runtime-corejs3/core-js/set');
require('@babel/runtime-corejs3/core-js/instance/flags');
require('@babel/runtime-corejs3/core-js/instance/includes');
require('@babel/runtime-corejs3/core-js/instance/starts-with');
require('@babel/runtime-corejs3/core-js/array/from');
require('@babel/runtime-corejs3/core-js/array/is-array');
require('@babel/runtime-corejs3/core-js/instance/concat');
require('@babel/runtime-corejs3/core-js/object/keys');
require('@babel/runtime-corejs3/core-js/object/assign');
require('@babel/runtime-corejs3/core-js/instance/keys');
require('@babel/runtime-corejs3/core-js/instance/find');
require('@babel/runtime-corejs3/core-js/instance/reverse');
require('@babel/runtime-corejs3/core-js/object/define-property');
require('@babel/runtime-corejs3/core-js/instance/slice');
require('@babel/runtime-corejs3/core-js/object/create');
require('@babel/runtime-corejs3/core-js/object/freeze');
require('@babel/runtime-corejs3/core-js/instance/last-index-of');
require('@babel/runtime-corejs3/core-js/object/define-properties');
require('@babel/runtime-corejs3/core-js/instance/index-of');
require('@babel/runtime-corejs3/core-js/instance/at');
require('@babel/runtime-corejs3/core-js/symbol');
require('@babel/runtime-corejs3/core-js/symbol/iterator');
require('@babel/runtime-corejs3/core-js/parse-int');
require('@babel/runtime-corejs3/core-js/parse-float');
require('@babel/runtime-corejs3/core-js/weak-map');
require('@babel/runtime-corejs3/core-js/global-this');
require('@babel/runtime-corejs3/core-js/instance/for-each');
require('eslint/use-at-your-own-risk');
require('eslint');
require('@babel/runtime-corejs3/core-js/object/get-own-property-descriptor');
require('@babel/runtime-corejs3/core-js/map');
require('@babel/runtime-corejs3/core-js/instance/every');
require('@babel/runtime-corejs3/core-js/instance/sort');
require('@babel/runtime-corejs3/core-js/array/of');
require('@babel/runtime-corejs3/core-js/instance/entries');
require('@babel/runtime-corejs3/core-js/instance/find-index');
require('@babel/runtime-corejs3/core-js/instance/flat');
require('@babel/runtime-corejs3/core-js/instance/values');
require('@babel/runtime-corejs3/core-js/object/get-own-property-names');
require('@babel/runtime-corejs3/core-js/number/is-finite');
require('@babel/runtime-corejs3/core-js/number/is-nan');
require('@babel/runtime-corejs3/core-js/number/parse-float');
require('@babel/runtime-corejs3/core-js/number/parse-int');
require('@babel/runtime-corejs3/core-js/object/is');
require('@babel/runtime-corejs3/core-js/object/is-extensible');
require('@babel/runtime-corejs3/core-js/object/is-frozen');
require('@babel/runtime-corejs3/core-js/object/is-sealed');
require('@babel/runtime-corejs3/core-js/object/values');
require('@babel/runtime-corejs3/core-js/string/from-code-point');
require('@babel/runtime-corejs3/core-js/string/raw');
require('@babel/runtime-corejs3/core-js/instance/code-point-at');
require('@babel/runtime-corejs3/core-js/instance/ends-with');
require('@babel/runtime-corejs3/core-js/instance/pad-end');
require('@babel/runtime-corejs3/core-js/instance/pad-start');
require('@babel/runtime-corejs3/core-js/instance/trim');
require('@babel/runtime-corejs3/core-js/instance/trim-end');
require('@babel/runtime-corejs3/core-js/instance/trim-left');
require('@babel/runtime-corejs3/core-js/instance/trim-right');
require('@babel/runtime-corejs3/core-js/instance/trim-start');
require('@babel/runtime-corejs3/core-js/symbol/for');
require('@babel/runtime-corejs3/core-js/symbol/key-for');
require('@babel/runtime-corejs3/core-js/object/prevent-extensions');
require('@babel/runtime-corejs3/core-js/object/seal');
require('@babel/runtime-corejs3/core-js/object/get-prototype-of');
require('@babel/runtime-corejs3/core-js/symbol/replace');
require('@babel/runtime-corejs3/core-js/instance/bind');
require('@babel/runtime-corejs3/core-js/instance/splice');
require('@babel/runtime-corejs3/core-js/instance/repeat');

var spaceBeforeFunctionParen = utils.createRule({
  name: "space-before-function-paren",
  package: "ts",
  meta: {
    type: "layout",
    docs: {
      description: "Enforce consistent spacing before function parenthesis"
    },
    fixable: "whitespace",
    schema: [{
      oneOf: [{
        type: "string",
        enum: ["always", "never"]
      }, {
        type: "object",
        properties: {
          anonymous: {
            type: "string",
            enum: ["always", "never", "ignore"]
          },
          named: {
            type: "string",
            enum: ["always", "never", "ignore"]
          },
          asyncArrow: {
            type: "string",
            enum: ["always", "never", "ignore"]
          }
        },
        additionalProperties: false
      }]
    }],
    messages: {
      unexpectedSpace: "Unexpected space before function parentheses.",
      missingSpace: "Missing space before function parentheses."
    }
  },
  defaultOptions: ["always"],
  create(context, [firstOption]) {
    const sourceCode = context.sourceCode;
    const baseConfig = typeof firstOption === "string" ? firstOption : "always";
    const overrideConfig = typeof firstOption === "object" ? firstOption : {};
    function isNamedFunction(node) {
      if (node.id != null) return true;
      const parent = node.parent;
      return parent.type === vendor.distExports.AST_NODE_TYPES.MethodDefinition || parent.type === vendor.distExports.AST_NODE_TYPES.TSAbstractMethodDefinition || parent.type === vendor.distExports.AST_NODE_TYPES.Property && (parent.kind === "get" || parent.kind === "set" || parent.method);
    }
    function getConfigForFunction(node) {
      if (node.type === vendor.distExports.AST_NODE_TYPES.ArrowFunctionExpression) {
        if (node.async && vendor.astUtilsExports.isOpeningParenToken(sourceCode.getFirstToken(node, {
          skip: 1
        }))) {
          var _overrideConfig$async;
          return (_overrideConfig$async = overrideConfig.asyncArrow) != null ? _overrideConfig$async : baseConfig;
        }
      } else if (isNamedFunction(node)) {
        var _overrideConfig$named;
        return (_overrideConfig$named = overrideConfig.named) != null ? _overrideConfig$named : baseConfig;
      } else if (!node.generator) {
        var _overrideConfig$anony;
        return (_overrideConfig$anony = overrideConfig.anonymous) != null ? _overrideConfig$anony : baseConfig;
      }
      return "ignore";
    }
    function checkFunction(node) {
      const functionConfig = getConfigForFunction(node);
      if (functionConfig === "ignore") return;
      let leftToken;
      let rightToken;
      if (node.typeParameters) {
        leftToken = sourceCode.getLastToken(node.typeParameters);
        rightToken = sourceCode.getTokenAfter(leftToken);
      } else {
        rightToken = sourceCode.getFirstToken(node, vendor.astUtilsExports.isOpeningParenToken);
        leftToken = sourceCode.getTokenBefore(rightToken);
      }
      const hasSpacing = sourceCode.isSpaceBetween(leftToken, rightToken);
      if (hasSpacing && functionConfig === "never") {
        context.report({
          node,
          loc: {
            start: leftToken.loc.end,
            end: rightToken.loc.start
          },
          messageId: "unexpectedSpace",
          fix: fixer => {
            const comments = sourceCode.getCommentsBefore(rightToken);
            if (_someInstanceProperty(comments).call(comments, comment => comment.type === "Line")) return null;
            return fixer.replaceTextRange([leftToken.range[1], rightToken.range[0]], _reduceInstanceProperty(comments).call(comments, (text, comment) => text + sourceCode.getText(comment), ""));
          }
        });
      } else if (!hasSpacing && functionConfig === "always" && (!node.typeParameters || node.id)) {
        context.report({
          node,
          loc: rightToken.loc,
          messageId: "missingSpace",
          fix: fixer => fixer.insertTextAfter(leftToken, " ")
        });
      }
    }
    return {
      ArrowFunctionExpression: checkFunction,
      FunctionDeclaration: checkFunction,
      FunctionExpression: checkFunction,
      TSEmptyBodyFunctionExpression: checkFunction,
      TSDeclareFunction: checkFunction
    };
  }
});

module.exports = spaceBeforeFunctionParen;