fix: handle token parameters undefined (#9)

gajus · Sep 1, 2018 · 631b161 · 631b161
1 parent 28522d4
commit 631b161
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Showing 2 changed files with 2 additions and 1 deletion.
diff --git a/src/createGenerator.js b/src/createGenerator.js
@@ -31,7 +31,7 @@ const renderSelector = (selectorToken: SelectorTokenType) => {
     } else if (token.type === 'pseudoClassSelector') {
       part = ':' + token.name;
 
-      if (token.parameters.length) {
+      if (token.parameters && token.parameters.length) {
         part += '(' + token.parameters.map(escapeValue).join(', ') + ')';
       }
     } else if (token.type === 'pseudoElementSelector') {

diff --git a/test/generator.js b/test/generator.js
@@ -11,6 +11,7 @@ const MIRROR = {};
 /* eslint-disable sort-keys */
 const validSelectors = {
   '*': MIRROR,
+  '.className:focus': MIRROR,
   '::grault': MIRROR,
   'foo > bar > baz': MIRROR,
   'foo ~ bar ~ baz': MIRROR,