1 files changed, 81 insertions, 0 deletions
diff --git a/node_modules/tslint/lib/rules/awaitPromiseRule.js b/node_modules/tslint/lib/rules/awaitPromiseRule.js
new file mode 100644
index 000000000..18c255e72
--- /dev/null
+++ b/node_modules/tslint/lib/rules/awaitPromiseRule.js
@@ -0,0 +1,81 @@
+"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 Rule = (function (_super) {
+    tslib_1.__extends(Rule, _super);
+    function Rule() {
+        return _super !== null && _super.apply(this, arguments) || this;
+    }
+    Rule.prototype.applyWithProgram = function (sourceFile, program) {
+        var promiseTypes = new Set(["Promise"].concat(this.ruleArguments));
+        var tc = program.getTypeChecker();
+        return this.applyWithFunction(sourceFile, function (ctx) { return walk(ctx, tc, promiseTypes); });
+    };
+    return Rule;
+}(Lint.Rules.TypedRule));
+/* tslint:disable:object-literal-sort-keys */
+Rule.metadata = {
+    ruleName: "await-promise",
+    description: "Warns for an awaited value that is not a Promise.",
+    optionsDescription: (_a = ["\n            A list of 'string' names of any additional classes that should also be handled as Promises.\n        "], _a.raw = ["\n            A list of 'string' names of any additional classes that should also be handled as Promises.\n        "], Lint.Utils.dedent(_a)),
+    options: {
+        type: "list",
+        listType: {
+            type: "array",
+            items: { type: "string" },
+        },
+    },
+    optionExamples: [true, [true, "Thenable"]],
+    type: "functionality",
+    typescriptOnly: true,
+    requiresTypeInfo: true,
+};
+/* tslint:enable:object-literal-sort-keys */
+Rule.FAILURE_STRING = "'await' of non-Promise.";
+exports.Rule = Rule;
+function walk(ctx, tc, promiseTypes) {
+    return ts.forEachChild(ctx.sourceFile, cb);
+    function cb(node) {
+        if (tsutils_1.isAwaitExpression(node) && !couldBePromise(tc.getTypeAtLocation(node.expression))) {
+            ctx.addFailureAtNode(node, Rule.FAILURE_STRING);
+        }
+        return ts.forEachChild(node, cb);
+    }
+    function couldBePromise(type) {
+        if (Lint.isTypeFlagSet(type, ts.TypeFlags.Any) || isPromiseType(type)) {
+            return true;
+        }
+        if (isUnionType(type)) {
+            return type.types.some(couldBePromise);
+        }
+        var bases = type.getBaseTypes();
+        return bases !== undefined && bases.some(couldBePromise);
+    }
+    function isPromiseType(type) {
+        var target = type.target;
+        return target !== undefined && target.symbol !== undefined && promiseTypes.has(target.symbol.name);
+    }
+}
+function isUnionType(type) {
+    return Lint.isTypeFlagSet(type, ts.TypeFlags.Union);
+}
+var _a;