[Fix] jsx-props-no-spreading: add support for namespaced jsx components

Author: jonathanpalma

.editorconfig

@@ -7,6 +7,7 @@ end_of_line = lf
 charset = utf-8
 trim_trailing_whitespace = true
 insert_final_newline = true
+quote_type = single
 
 [*.md]
 trim_trailing_whitespace = false

lib/rules/jsx-props-no-spreading.js

@@ -79,11 +79,23 @@ module.exports = {
     const exceptions = configuration.exceptions || DEFAULTS.exceptions;
     const isException = (tag, allExceptions) => allExceptions.indexOf(tag) !== -1;
     const isProperty = property => property.type === 'Property';
+    const getTagNameFromMemberExpression = node => `${node.property.parent.object.name}.${node.property.name}`;
     return {
       JSXSpreadAttribute(node) {
-        const tagName = node.parent.name.name;
+        const jsxOpeningElement = node.parent.name;
+        const type = jsxOpeningElement.type;
+
+        let tagName;
+        if (type === 'JSXIdentifier') {
+          tagName = jsxOpeningElement.name;
+        } else if (type === 'JSXMemberExpression') {
+          tagName = getTagNameFromMemberExpression(jsxOpeningElement);
+        } else {
+          tagName = undefined;
+        }
+
         const isHTMLTag = tagName && tagName[0] !== tagName[0].toUpperCase();
-        const isCustomTag = tagName && tagName[0] === tagName[0].toUpperCase();
+        const isCustomTag = tagName && (tagName[0] === tagName[0].toUpperCase() || tagName.includes('.'));
         if (
           isHTMLTag &&
           ((ignoreHtmlTags && !isException(tagName, exceptions)) ||

tests/lib/rules/jsx-props-no-spreading.js

@@ -89,6 +89,37 @@ ruleTester.run('jsx-props-no-spreading', rule, {
       </App>
     `,
     options: [{explicitSpread: 'ignore'}]
+  }, {
+    code: [
+      'const props = {};',
+      '<App>',
+      '   <components.Group {...props}/>',
+      '   <Nav.Item {...props}/>',
+      '</App>'
+    ].join('\n'),
+    options: [{exceptions: ['components.Group', 'Nav.Item']}]
+  }, {
+    code: [
+      'const props = {};',
+      '<App>',
+      '   <components.Group {...props}/>',
+      '   <Nav.Item {...props}/>',
+      '</App>'
+    ].join('\n'),
+    options: [{custom: 'ignore'}]
+  }, {
+    code: [
+      'const props = {};',
+      '<App>',
+      '   <components.Group {...props}/>',
+      '   <Nav.Item {...props}/>',
+      '</App>'
+    ].join('\n'),
+    options: [{
+      custom: 'enforce',
+      html: 'ignore',
+      exceptions: ['components.Group', 'Nav.Item']
+    }]
   }],
 
   invalid: [{
@@ -192,5 +223,15 @@ ruleTester.run('jsx-props-no-spreading', rule, {
     `,
     options: [{explicitSpread: 'ignore'}],
     errors: [expectedError]
+  }, {
+    code: [
+      'const props = {};',
+      '<App>',
+      '   <components.Group {...props}/>',
+      '   <Nav.Item {...props}/>',
+      '</App>'
+    ].join('\n'),
+    options: [{exceptions: ['components.DropdownIndicator', 'Nav.Item']}],
+    errors: [expectedError]
   }]
 });