.gitignore added

[dotfiles/.git] / .config / coc / extensions / node_modules / coc-prettier / node_modules / tslint / lib / rules / noVoidExpressionRule.js

diff --git a/.config/coc/extensions/node_modules/coc-prettier/node_modules/tslint/lib/rules/noVoidExpressionRule.js b/.config/coc/extensions/node_modules/coc-prettier/node_modules/tslint/lib/rules/noVoidExpressionRule.js
new file mode 100644 (file)
index 0000000..7fea33e
--- /dev/null
+++ b/.config/coc/extensions/node_modules/coc-prettier/node_modules/tslint/lib/rules/noVoidExpressionRule.js
@@ -0,0 +1,94 @@
+"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 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;
+            // Something like "x && console.log(x)".
+            case ts.SyntaxKind.BinaryExpression:
+                return isParentAllowedVoid(node.parent);
+            // Something like "!!cond ? console.log(true) : console.log(false)"
+            case ts.SyntaxKind.ConditionalExpression:
+                return true;
+            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;