Allow nested recursion in mixin calls (ala bootstrap)

lesscpy/plib/deferred.py

@@ -45,9 +45,6 @@ class Deferred(Node):
         ident.parse(scope)
         mixins = scope.mixins(ident.raw())
         
-#        if scope.real:
-#            print(scope.real[-1].raw())
-        
         if not mixins:
             ident.parse(None)
             mixins = scope.mixins(ident.raw())
@@ -78,6 +75,7 @@ class Deferred(Node):
                 
         if mixins:
             for mixin in mixins:
+                scope.current = scope.real[-1] if scope.real else None
                 res = mixin.call(scope, args)
                 if res: 
                     # Add variables to scope to support

lesscpy/test/css/mixin-args-recursive.css

@@ -34,3 +34,36 @@
 .a .span1 {
 	width: 12px;
 }
+.span3 {
+	width: 60px;
+}
+.span2 {
+	width: 36px;
+}
+.span1 {
+	width: 12px;
+}
+.nested {
+	padding: 1px;
+}
+.nested .span3 {
+	width: 60px;
+}
+.nested .span2 {
+	width: 36px;
+}
+.nested .span1 {
+	width: 12px;
+}
+.nested .deep {
+	padding: 1px;
+}
+.nested .deep .span3 {
+	width: 60px;
+}
+.nested .deep .span2 {
+	width: 36px;
+}
+.nested .deep .span1 {
+	width: 12px;
+}

lesscpy/test/css/mixin-args-recursive.min.css

@@ -10,3 +10,14 @@
 .a .span3{width:60px;}
 .a .span2{width:36px;}
 .a .span1{width:12px;}
+.span3{width:60px;}
+.span2{width:36px;}
+.span1{width:12px;}
+.nested{padding:1px;}
+.nested .span3{width:60px;}
+.nested .span2{width:36px;}
+.nested .span1{width:12px;}
+.nested .deep{padding:1px;}
+.nested .deep .span3{width:60px;}
+.nested .deep .span2{width:36px;}
+.nested .deep .span1{width:12px;}

lesscpy/test/less/mixin-args-recursive.less

@@ -12,4 +12,33 @@
 
 .a {
 	.spanX(12);
-}
+}
+// Nested recursion
+@gridColumns:             3;
+@gridColumnWidth:         60px;
+@gridGutterWidth:         20px;
+#grid {
+	.core (@gridColumnWidth, @gridGutterWidth) {
+		.spanX (@index) when (@index > 0) {
+			(~".span@{index}") { .span(@index); }
+			.spanX(@index - 1);
+	    }
+	    .spanX (0) {}
+	    
+	    .span (@columns) {
+	    	width: (@gridColumnWidth * @columns) + (@gridGutterWidth * (@columns - 1));
+	    }
+	    
+	    .spanX (@gridColumns);
+	    
+	    .nested {
+	    	padding: 1px;
+	    	.spanX (@gridColumns);
+	    	.deep {
+	    		padding: 1px;
+	    		.spanX (@gridColumns);
+	    	}
+	    }
+	}
+}
+#grid > .core(@gridColumnWidth, @gridGutterWidth);