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

diff --git a/.config/coc/extensions/node_modules/coc-prettier/node_modules/tslint/lib/rules/noReturnAwaitRule.js b/.config/coc/extensions/node_modules/coc-prettier/node_modules/tslint/lib/rules/noReturnAwaitRule.js
new file mode 100644 (file)
index 0000000..a8c55d9
--- /dev/null
+++ b/.config/coc/extensions/node_modules/coc-prettier/node_modules/tslint/lib/rules/noReturnAwaitRule.js
@@ -0,0 +1,114 @@
+"use strict";
+/**
+ * @license
+ * Copyright 2017 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 utils_1 = require("../utils");
+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);
+    };
+    /* tslint:disable:object-literal-sort-keys */
+    Rule.metadata = {
+        ruleName: "no-return-await",
+        description: "Disallows unnecessary `return await`.",
+        rationale: Lint.Utils.dedent(templateObject_1 || (templateObject_1 = tslib_1.__makeTemplateObject(["\n            An async function always wraps the return value in a Promise.\n            Using `return await` just adds extra time before the overreaching promise is resolved without changing the semantics.\n        "], ["\n            An async function always wraps the return value in a Promise.\n            Using \\`return await\\` just adds extra time before the overreaching promise is resolved without changing the semantics.\n        "]))),
+        optionsDescription: "Not configurable.",
+        options: null,
+        optionExamples: [true],
+        type: "functionality",
+        typescriptOnly: false,
+        hasFix: true,
+    };
+    /* tslint:enable:object-literal-sort-keys */
+    Rule.FAILURE_STRING = "Unnecessary 'await'.";
+    return Rule;
+}(Lint.Rules.AbstractRule));
+exports.Rule = Rule;
+function walk(ctx) {
+    return ts.forEachChild(ctx.sourceFile, function cb(node) {
+        if (node.kind === ts.SyntaxKind.AwaitExpression && isUnnecessaryAwait(node)) {
+            var expression = node.expression;
+            var keywordStart = expression.pos - "await".length;
+            ctx.addFailure(keywordStart, expression.pos, Rule.FAILURE_STRING, Lint.Replacement.deleteFromTo(keywordStart, expression.getStart(ctx.sourceFile)));
+        }
+        return ts.forEachChild(node, cb);
+    });
+}
+function isUnnecessaryAwait(node) {
+    while (true) {
+        var parent = node.parent;
+        outer: switch (parent.kind) {
+            case ts.SyntaxKind.ArrowFunction:
+                return true;
+            case ts.SyntaxKind.ReturnStatement:
+                return !isInsideTryBlock(parent.parent);
+            case ts.SyntaxKind.ParenthesizedExpression:
+                break;
+            case ts.SyntaxKind.ConditionalExpression:
+                if (parent.condition === node) {
+                    return false;
+                }
+                break;
+            case ts.SyntaxKind.BinaryExpression:
+                if (parent.right === node) {
+                    switch (parent.operatorToken.kind) {
+                        case ts.SyntaxKind.AmpersandAmpersandToken:
+                        case ts.SyntaxKind.BarBarToken:
+                        case ts.SyntaxKind.CommaToken:
+                            break outer;
+                    }
+                }
+                return false;
+            default:
+                return false;
+        }
+        node = parent;
+    }
+}
+function isInsideTryBlock(node) {
+    while (node.parent !== undefined) {
+        // tslint:disable:deprecation This is needed for https://github.com/palantir/tslint/pull/4274 and will be fixed once TSLint
+        // requires tsutils > 3.0.
+        if (utils_1.isFunctionScopeBoundary(node)) {
+            // tslint:enable:deprecation
+            return false;
+        }
+        if (tsutils_1.isTryStatement(node.parent)) {
+            if (
+            // statements inside the try block always have an error handler, either catch or finally
+            node.parent.tryBlock === node ||
+                // statement inside the catch block only have an error handler if there is a finally block
+                (node.parent.finallyBlock !== undefined && node.parent.catchClause === node)) {
+                return true;
+            }
+            node = node.parent.parent;
+        }
+        else {
+            node = node.parent;
+        }
+    }
+    return false;
+}
+var templateObject_1;