widl: duplicate type in case of argument with range attribute

[Jérôme Gardou]

---
  tools/widl/parser.y |    5 +++++
  1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/tools/widl/parser.y b/tools/widl/parser.y
index 5286977..be22df2 100644
--- a/tools/widl/parser.y
+++ b/tools/widl/parser.y
@@ -1418,6 +1418,11 @@ static var_t *declare_var(attr_list_t *attrs, 
decl_spec_t *decl_spec, const decl
    type_t *func_type = decl ? decl->func_type : NULL;
    type_t *type = decl_spec->type;
  +  /* In case of a range attribute, duplicate the type to keep track of
+   * the min/max values in the type format string */
+  if(is_attr(attrs, ATTR_RANGE))
+    type = duptype(type, 1);
+
    if (is_attr(type->attrs, ATTR_INLINE))
    {
      if (!func_type)
-- 
1.7.2.5