Mixin arg values should be evaluated in their own scope.

The hack to make default values use earlier arguments' values was also
applied to the expressions passed in by the caller; whoops.

1 files changed, 3 insertions, 0 deletions

diff --git a/scss/__init__.py b/scss/__init__.py
index bfef326..71af034 100644
--- a/scss/__init__.py
+++ b/scss/__init__.py
@@ -789,9 +789,12 @@ class Scss(object):
                 params_dict[var_name] = var_value
 
         # Evaluate all parameters sent to the function in order:
+        param_values = {}
         for var_name in params:
             var_value = params_dict[var_name]
             value = var_value.evaluate(calculator)
+            param_values[var_name] = value
+        for var_name, value in param_values.items():
             m_vars.set_variable(var_name, value)
 
         # Evaluate arguments not passed to the mixin/function (from the defaults):