aboutsummaryrefslogtreecommitdiff
path: root/node_modules/tslint/lib/rules/noVoidExpressionRule.js
diff options
context:
space:
mode:
authorFlorian Dold <florian.dold@gmail.com>2019-03-27 21:01:33 +0100
committerFlorian Dold <florian.dold@gmail.com>2019-03-27 21:01:33 +0100
commitcc97a4dd2a967e1c2273bd5f4c5f49a5bf2e2585 (patch)
tree92c5d88706a6ffc654d1b133618d357890e7096b /node_modules/tslint/lib/rules/noVoidExpressionRule.js
parent3771b4d6b67b34c130f3a9a1a15f42deefdb2eda (diff)
remove node_modules
Diffstat (limited to 'node_modules/tslint/lib/rules/noVoidExpressionRule.js')
-rw-r--r--node_modules/tslint/lib/rules/noVoidExpressionRule.js88
1 files changed, 0 insertions, 88 deletions
diff --git a/node_modules/tslint/lib/rules/noVoidExpressionRule.js b/node_modules/tslint/lib/rules/noVoidExpressionRule.js
deleted file mode 100644
index 96742a87d..000000000
--- a/node_modules/tslint/lib/rules/noVoidExpressionRule.js
+++ /dev/null
@@ -1,88 +0,0 @@
-"use strict";
-/**
- * @license
- * Copyright 2016 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 OPTION_IGNORE_ARROW_FUNCTION_SHORTHAND = "ignore-arrow-function-shorthand";
-var Rule = /** @class */ (function (_super) {
- tslib_1.__extends(Rule, _super);
- function Rule() {
- return _super !== null && _super.apply(this, arguments) || this;
- }
- Rule.prototype.applyWithProgram = function (sourceFile, program) {
- var ignoreArrowFunctionShorthand = this.ruleArguments.indexOf(OPTION_IGNORE_ARROW_FUNCTION_SHORTHAND) !== -1;
- return this.applyWithFunction(sourceFile, walk, { ignoreArrowFunctionShorthand: ignoreArrowFunctionShorthand }, program.getTypeChecker());
- };
- /* tslint:disable:object-literal-sort-keys */
- Rule.metadata = {
- ruleName: "no-void-expression",
- description: "Requires expressions of type `void` to appear in statement position.",
- optionsDescription: Lint.Utils.dedent(templateObject_1 || (templateObject_1 = tslib_1.__makeTemplateObject(["\n If `", "` is provided, `() => returnsVoid()` will be allowed.\n Otherwise, it must be written as `() => { returnsVoid(); }`."], ["\n If \\`", "\\` is provided, \\`() => returnsVoid()\\` will be allowed.\n Otherwise, it must be written as \\`() => { returnsVoid(); }\\`."])), OPTION_IGNORE_ARROW_FUNCTION_SHORTHAND),
- options: {
- type: "array",
- items: {
- type: "string",
- enum: [OPTION_IGNORE_ARROW_FUNCTION_SHORTHAND],
- },
- minLength: 0,
- maxLength: 1,
- },
- rationale: Lint.Utils.dedent(templateObject_2 || (templateObject_2 = tslib_1.__makeTemplateObject(["\n It's misleading returning the results of an expression whose type is `void`.\n Attempting to do so is likely a symptom of expecting a different return type from a function.\n For example, the following code will log `undefined` but looks like it logs a value:\n\n ```\n const performWork = (): void => {\n workFirst();\n workSecond();\n };\n\n console.log(performWork());\n ```\n "], ["\n It's misleading returning the results of an expression whose type is \\`void\\`.\n Attempting to do so is likely a symptom of expecting a different return type from a function.\n For example, the following code will log \\`undefined\\` but looks like it logs a value:\n\n \\`\\`\\`\n const performWork = (): void => {\n workFirst();\n workSecond();\n };\n\n console.log(performWork());\n \\`\\`\\`\n "]))),
- requiresTypeInfo: true,
- type: "functionality",
- typescriptOnly: false,
- };
- /* tslint:enable:object-literal-sort-keys */
- Rule.FAILURE_STRING = "Expression has type `void`. Put it on its own line as a statement.";
- return Rule;
-}(Lint.Rules.TypedRule));
-exports.Rule = Rule;
-function walk(ctx, checker) {
- var sourceFile = ctx.sourceFile, ignoreArrowFunctionShorthand = ctx.options.ignoreArrowFunctionShorthand;
- return ts.forEachChild(sourceFile, function cb(node) {
- if (isPossiblyVoidExpression(node)
- && !isParentAllowedVoid(node)
- && tsutils_1.isTypeFlagSet(checker.getTypeAtLocation(node), ts.TypeFlags.Void)) {
- ctx.addFailureAtNode(node, Rule.FAILURE_STRING);
- }
- return ts.forEachChild(node, cb);
- });
- function isParentAllowedVoid(node) {
- switch (node.parent.kind) {
- case ts.SyntaxKind.ExpressionStatement:
- return true;
- case ts.SyntaxKind.ArrowFunction:
- return ignoreArrowFunctionShorthand;
- default:
- return false;
- }
- }
-}
-function isPossiblyVoidExpression(node) {
- switch (node.kind) {
- case ts.SyntaxKind.AwaitExpression:
- case ts.SyntaxKind.CallExpression:
- case ts.SyntaxKind.TaggedTemplateExpression:
- return true;
- default:
- return false;
- }
-}
-var templateObject_1, templateObject_2;