Current Dev State

static/js/ketcher2/node_modules/eslint/lib/rules/new-parens.js

@@ -0,0 +1,58 @@
+/**
+ * @fileoverview Rule to flag when using constructor without parentheses
+ * @author Ilya Volodin
+ */
+
+"use strict";
+
+//------------------------------------------------------------------------------
+// Requirements
+//------------------------------------------------------------------------------
+
+const astUtils = require("../ast-utils");
+
+//------------------------------------------------------------------------------
+// Helpers
+//------------------------------------------------------------------------------
+
+//------------------------------------------------------------------------------
+// Rule Definition
+//------------------------------------------------------------------------------
+
+module.exports = {
+    meta: {
+        docs: {
+            description: "require parentheses when invoking a constructor with no arguments",
+            category: "Stylistic Issues",
+            recommended: false
+        },
+
+        schema: [],
+
+        fixable: "code"
+    },
+
+    create(context) {
+        const sourceCode = context.getSourceCode();
+
+        return {
+            NewExpression(node) {
+                if (node.arguments.length !== 0) {
+                    return;  // shortcut: if there are arguments, there have to be parens
+                }
+
+                const lastToken = sourceCode.getLastToken(node);
+                const hasLastParen = lastToken && astUtils.isClosingParenToken(lastToken);
+                const hasParens = hasLastParen && astUtils.isOpeningParenToken(sourceCode.getTokenBefore(lastToken));
+
+                if (!hasParens) {
+                    context.report({
+                        node,
+                        message: "Missing '()' invoking a constructor.",
+                        fix: fixer => fixer.insertTextAfter(node, "()")
+                    });
+                }
+            }
+        };
+    }
+};