1 files changed, 88 insertions, 0 deletions
diff --git a/node_modules/tslint/lib/rules/noUnboundMethodRule.js b/node_modules/tslint/lib/rules/noUnboundMethodRule.js
new file mode 100644
index 000000000..388cfa404
--- /dev/null
+++ b/node_modules/tslint/lib/rules/noUnboundMethodRule.js
@@ -0,0 +1,88 @@
+"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 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) {
+        return this.applyWithWalker(new Walker(sourceFile, this.getOptions(), program));
+    };
+    return Rule;
+}(Lint.Rules.TypedRule));
+/* tslint:disable:object-literal-sort-keys */
+Rule.metadata = {
+    ruleName: "no-unbound-method",
+    description: "Warns when a method is used as outside of a method call.",
+    optionsDescription: "Not configurable.",
+    options: null,
+    optionExamples: [true],
+    type: "functionality",
+    typescriptOnly: true,
+    requiresTypeInfo: true,
+};
+/* tslint:enable:object-literal-sort-keys */
+Rule.FAILURE_STRING = "Avoid referencing unbound methods which may cause unintentional scoping of 'this'.";
+exports.Rule = Rule;
+var Walker = (function (_super) {
+    tslib_1.__extends(Walker, _super);
+    function Walker() {
+        return _super !== null && _super.apply(this, arguments) || this;
+    }
+    Walker.prototype.visitPropertyAccessExpression = function (node) {
+        if (!isSafeUse(node)) {
+            var symbol = this.getTypeChecker().getSymbolAtLocation(node);
+            var declaration = symbol === undefined ? undefined : symbol.valueDeclaration;
+            if (declaration !== undefined && isMethod(declaration)) {
+                this.addFailureAtNode(node, Rule.FAILURE_STRING);
+            }
+        }
+        _super.prototype.visitPropertyAccessExpression.call(this, node);
+    };
+    return Walker;
+}(Lint.ProgramAwareRuleWalker));
+function isMethod(node) {
+    switch (node.kind) {
+        case ts.SyntaxKind.MethodDeclaration:
+        case ts.SyntaxKind.MethodSignature:
+            return true;
+        default:
+            return false;
+    }
+}
+function isSafeUse(node) {
+    var parent = node.parent;
+    switch (parent.kind) {
+        case ts.SyntaxKind.CallExpression:
+            return parent.expression === node;
+        case ts.SyntaxKind.TaggedTemplateExpression:
+            return parent.tag === node;
+        // E.g. `obj.method.bind(obj)`.
+        case ts.SyntaxKind.PropertyAccessExpression:
+            return true;
+        // Allow most binary operators, but don't allow e.g. `myArray.forEach(obj.method || otherObj.otherMethod)`.
+        case ts.SyntaxKind.BinaryExpression:
+            return parent.operatorToken.kind !== ts.SyntaxKind.BarBarToken;
+        default:
+            return false;
+    }
+}