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node_modules/tslint/lib/rules/radixRule.js

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+"use strict";
+/**
+ * @license
+ * Copyright 2013 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 radix_examples_1 = require("./code-examples/radix.examples");
+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: "radix",
+        description: "Requires the radix parameter to be specified when calling `parseInt`.",
+        rationale: Lint.Utils.dedent(templateObject_1 || (templateObject_1 = tslib_1.__makeTemplateObject(["\n            From [MDN](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/parseInt):\n            > Always specify this parameter to eliminate reader confusion and to guarantee predictable behavior.\n            > Different implementations produce different results when a radix is not specified, usually defaulting the value to 10."], ["\n            From [MDN](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/parseInt):\n            > Always specify this parameter to eliminate reader confusion and to guarantee predictable behavior.\n            > Different implementations produce different results when a radix is not specified, usually defaulting the value to 10."]))),
+        optionsDescription: "Not configurable.",
+        options: null,
+        optionExamples: [true],
+        type: "functionality",
+        typescriptOnly: false,
+        codeExamples: radix_examples_1.codeExamples,
+    };
+    /* tslint:enable:object-literal-sort-keys */
+    Rule.FAILURE_STRING = "Missing radix parameter";
+    return Rule;
+}(Lint.Rules.AbstractRule));
+exports.Rule = Rule;
+function isParseInt(expression) {
+    return tsutils_1.isIdentifier(expression) && expression.text === "parseInt";
+}
+function isPropertyAccessParseInt(expression) {
+    return tsutils_1.isPropertyAccessExpression(expression) && expression.name.text === "parseInt";
+}
+function isPropertyAccessOfIdentifier(expression, identifiers) {
+    return (tsutils_1.isPropertyAccessExpression(expression) &&
+        tsutils_1.isIdentifier(expression.expression) &&
+        identifiers.some(function (identifier) { return expression.expression.text === identifier; }));
+}
+function isPropertyAccessOfProperty(expression, identifiers) {
+    return (tsutils_1.isPropertyAccessExpression(expression) &&
+        tsutils_1.isPropertyAccessExpression(expression.expression) &&
+        identifiers.some(function (identifier) {
+            return expression.expression.name.text === identifier;
+        }));
+}
+function walk(ctx) {
+    return ts.forEachChild(ctx.sourceFile, function cb(node) {
+        if (tsutils_1.isCallExpression(node) &&
+            node.arguments.length === 1 &&
+            // parseInt("123")
+            (isParseInt(node.expression) ||
+                // window.parseInt("123") || global.parseInt("123") || Number.parseInt("123")
+                (isPropertyAccessParseInt(node.expression) &&
+                    isPropertyAccessOfIdentifier(node.expression, [
+                        "global",
+                        "window",
+                        "Number",
+                    ])) ||
+                // window.Number.parseInt("123") || global.Number.parseInt("123")
+                (isPropertyAccessParseInt(node.expression) &&
+                    isPropertyAccessOfProperty(node.expression, ["Number"]) &&
+                    isPropertyAccessOfIdentifier(node.expression.expression, ["global", "window"])))) {
+            ctx.addFailureAtNode(node, Rule.FAILURE_STRING);
+        }
+        return ts.forEachChild(node, cb);
+    });
+}
+var templateObject_1;