--- /dev/null
+"use strict";
+/**
+ * @license
+ * Copyright 2018 Palantir Technologies, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+Object.defineProperty(exports, "__esModule", { value: true });
+var tslib_1 = require("tslib");
+var tsutils_1 = require("tsutils");
+var ts = require("typescript");
+var Lint = require("../index");
+var ALWAYS_OR_NEVER = {
+ enum: ["always", "never"],
+ type: "string",
+};
+var Rule = /** @class */ (function (_super) {
+ tslib_1.__extends(Rule, _super);
+ function Rule() {
+ return _super !== null && _super.apply(this, arguments) || this;
+ }
+ Rule.prototype.apply = function (sourceFile) {
+ return this.applyWithFunction(sourceFile, walk, parseOptions(this.ruleArguments[0]));
+ };
+ Rule.metadata = {
+ description: "Require or disallow a space before function parenthesis",
+ hasFix: true,
+ optionExamples: [
+ true,
+ [true, "always"],
+ [true, "never"],
+ [true, { anonymous: "always", named: "never", asyncArrow: "always" }],
+ ],
+ options: {
+ properties: {
+ anonymous: ALWAYS_OR_NEVER,
+ asyncArrow: ALWAYS_OR_NEVER,
+ constructor: ALWAYS_OR_NEVER,
+ method: ALWAYS_OR_NEVER,
+ named: ALWAYS_OR_NEVER,
+ },
+ type: "object",
+ },
+ optionsDescription: Lint.Utils.dedent(templateObject_1 || (templateObject_1 = tslib_1.__makeTemplateObject(["\n One argument which is an object which may contain the keys `anonymous`, `named`, and `asyncArrow`\n These should be set to either `\"always\"` or `\"never\"`.\n\n * `\"anonymous\"` checks before the opening paren in anonymous functions\n * `\"named\"` checks before the opening paren in named functions\n * `\"asyncArrow\"` checks before the opening paren in async arrow functions\n * `\"method\"` checks before the opening paren in class methods\n * `\"constructor\"` checks before the opening paren in class constructors\n "], ["\n One argument which is an object which may contain the keys \\`anonymous\\`, \\`named\\`, and \\`asyncArrow\\`\n These should be set to either \\`\"always\"\\` or \\`\"never\"\\`.\n\n * \\`\"anonymous\"\\` checks before the opening paren in anonymous functions\n * \\`\"named\"\\` checks before the opening paren in named functions\n * \\`\"asyncArrow\"\\` checks before the opening paren in async arrow functions\n * \\`\"method\"\\` checks before the opening paren in class methods\n * \\`\"constructor\"\\` checks before the opening paren in class constructors\n "]))),
+ ruleName: "space-before-function-paren",
+ type: "style",
+ typescriptOnly: false,
+ };
+ Rule.INVALID_WHITESPACE_ERROR = "Spaces before function parens are disallowed";
+ Rule.MISSING_WHITESPACE_ERROR = "Missing whitespace before function parens";
+ return Rule;
+}(Lint.Rules.AbstractRule));
+exports.Rule = Rule;
+var optionNames = ["anonymous", "asyncArrow", "constructor", "method", "named"];
+function parseOptions(json) {
+ // Need to specify constructor or it will be Object
+ var options = { constructor: undefined };
+ for (var _i = 0, optionNames_1 = optionNames; _i < optionNames_1.length; _i++) {
+ var optionName = optionNames_1[_i];
+ options[optionName] =
+ typeof json === "object" ? json[optionName] : json === undefined ? "always" : json;
+ }
+ return options;
+}
+function walk(ctx) {
+ var options = ctx.options, sourceFile = ctx.sourceFile;
+ ts.forEachChild(sourceFile, function cb(node) {
+ var option = getOption(node, options);
+ if (option !== undefined) {
+ check(node, option);
+ }
+ ts.forEachChild(node, cb);
+ });
+ function check(node, option) {
+ var openParen = tsutils_1.getChildOfKind(node, ts.SyntaxKind.OpenParenToken, sourceFile);
+ // openParen may be missing for an async arrow function `async x => ...`.
+ if (openParen === undefined) {
+ return;
+ }
+ var hasSpace = Lint.isWhiteSpace(sourceFile.text.charCodeAt(openParen.end - 2));
+ if (hasSpace && option === "never") {
+ var pos = openParen.getStart() - 1;
+ ctx.addFailureAt(pos, 1, Rule.INVALID_WHITESPACE_ERROR, Lint.Replacement.deleteText(pos, 1));
+ }
+ else if (!hasSpace && option === "always") {
+ var pos = openParen.getStart();
+ ctx.addFailureAt(pos, 1, Rule.MISSING_WHITESPACE_ERROR, Lint.Replacement.appendText(pos, " "));
+ }
+ }
+}
+function getOption(node, options) {
+ switch (node.kind) {
+ case ts.SyntaxKind.ArrowFunction:
+ return !hasTypeParameters(node) &&
+ tsutils_1.hasModifier(node.modifiers, ts.SyntaxKind.AsyncKeyword)
+ ? options.asyncArrow
+ : undefined;
+ case ts.SyntaxKind.Constructor:
+ return options.constructor;
+ case ts.SyntaxKind.FunctionDeclaration:
+ // name is optional for function declaration which is default export (TS will emit error in other cases).
+ // Can be handled in the same way as function expression.
+ case ts.SyntaxKind.FunctionExpression: {
+ var functionName = node.name;
+ var hasName = functionName !== undefined && functionName.text !== "";
+ return hasName
+ ? options.named
+ : !hasTypeParameters(node)
+ ? options.anonymous
+ : undefined;
+ }
+ case ts.SyntaxKind.MethodDeclaration:
+ case ts.SyntaxKind.MethodSignature:
+ case ts.SyntaxKind.GetAccessor:
+ case ts.SyntaxKind.SetAccessor:
+ return options.method;
+ default:
+ return undefined;
+ }
+}
+function hasTypeParameters(node) {
+ return node.typeParameters !== undefined;
+}
+var templateObject_1;
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