Fix vhdl_expr::cast when expression has no assigned type

This avoids a couple of segfaults
2008-09-02 20:22:50 +01:00 · 2008-09-02 20:22:50 +01:00 · 4cb2090978
parent ff766899b0
commit 4cb2090978
1 changed files with 5 additions and 0 deletions
--- a/tgt-vhdl/cast.cc
+++ b/tgt-vhdl/cast.cc
@ -32,6 +32,11 @@ vhdl_expr *vhdl_expr::cast(const vhdl_type *to)
   //          << " (" << type_->get_width() << ") "
   //          << " to=" << to->get_string() << " ("
   //          << to->get_width() << ")" << std::endl;
+
+   // If this expression hasn't been given a type then
+   // we can't generate any type conversion code
+   if (NULL == type_)
+      return this;
   
   if (to->get_name() == type_->get_name()) {
      if (to->get_width() == type_->get_width())