1 files changed, 89 insertions, 0 deletions
diff --git a/tools/node_modules/eslint/lib/rules/jsx-quotes.js b/tools/node_modules/eslint/lib/rules/jsx-quotes.js
new file mode 100644
index 0000000000..5653922d94
--- /dev/null
+++ b/tools/node_modules/eslint/lib/rules/jsx-quotes.js
@@ -0,0 +1,89 @@
+/**
+ * @fileoverview A rule to ensure consistent quotes used in jsx syntax.
+ * @author Mathias Schreck <https://github.com/lo1tuma>
+ */
+
+"use strict";
+
+//------------------------------------------------------------------------------
+// Requirements
+//------------------------------------------------------------------------------
+
+const astUtils = require("../ast-utils");
+
+//------------------------------------------------------------------------------
+// Constants
+//------------------------------------------------------------------------------
+
+const QUOTE_SETTINGS = {
+    "prefer-double": {
+        quote: "\"",
+        description: "singlequote",
+        convert(str) {
+            return str.replace(/'/g, "\"");
+        }
+    },
+    "prefer-single": {
+        quote: "'",
+        description: "doublequote",
+        convert(str) {
+            return str.replace(/"/g, "'");
+        }
+    }
+};
+
+//------------------------------------------------------------------------------
+// Rule Definition
+//------------------------------------------------------------------------------
+
+module.exports = {
+    meta: {
+        docs: {
+            description: "enforce the consistent use of either double or single quotes in JSX attributes",
+            category: "Stylistic Issues",
+            recommended: false
+        },
+
+        fixable: "whitespace",
+
+        schema: [
+            {
+                enum: ["prefer-single", "prefer-double"]
+            }
+        ]
+    },
+
+    create(context) {
+        const quoteOption = context.options[0] || "prefer-double",
+            setting = QUOTE_SETTINGS[quoteOption];
+
+        /**
+         * Checks if the given string literal node uses the expected quotes
+         * @param {ASTNode} node - A string literal node.
+         * @returns {boolean} Whether or not the string literal used the expected quotes.
+         * @public
+         */
+        function usesExpectedQuotes(node) {
+            return node.value.indexOf(setting.quote) !== -1 || astUtils.isSurroundedBy(node.raw, setting.quote);
+        }
+
+        return {
+            JSXAttribute(node) {
+                const attributeValue = node.value;
+
+                if (attributeValue && astUtils.isStringLiteral(attributeValue) && !usesExpectedQuotes(attributeValue)) {
+                    context.report({
+                        node: attributeValue,
+                        message: "Unexpected usage of {{description}}.",
+                        data: {
+                            description: setting.description
+                        },
+                        fix(fixer) {
+                            return fixer.replaceText(attributeValue, setting.convert(attributeValue.raw));
+                        }
+                    });
+                }
+            }
+        };
+    }
+};