Fix css_parser null error when using CSS with @ declarations

tneotia · tneotia · commit ee9d41ae404e · 2021-06-12T14:22:48.000-04:00
diff --git a/lib/src/css_parser.dart b/lib/src/css_parser.dart
@@ -370,7 +370,11 @@ class DeclarationVisitor extends css.Visitor {
 
   @override
   void visitExpressions(css.Expressions node) {
-    _properties[_currentProperty]!.addAll(node.expressions);
+    if (_properties[_currentProperty] != null) {
+      _properties[_currentProperty]!.addAll(node.expressions);
+    } else {
+      _properties[_currentProperty] = node.expressions;
+    }
   }
 }
 

Original file line number	Diff line number	Diff line change
`@@ -370,7 +370,11 @@ class DeclarationVisitor extends css.Visitor {`
`370`	`370`
`371`	`371`	`@override`
`372`	`372`	`void visitExpressions(css.Expressions node) {`
`373`		`- _properties[_currentProperty]!.addAll(node.expressions);`
	`373`	`+ if (_properties[_currentProperty] != null) {`
	`374`	`+ _properties[_currentProperty]!.addAll(node.expressions);`
	`375`	`+ } else {`
	`376`	`+ _properties[_currentProperty] = node.expressions;`
	`377`	`+ }`
`374`	`378`	`}`
`375`	`379`	`}`
`376`	`380`