Handle indexed defparams.

The l-value of a defparam assignment is a hierarchical name that may
include array selects to select scopes from module arrays. Therefore
it makes no sense to store parsed defparams in a map. Instead, they
should go into an ordered list. This also maked more sense because later
defparams *may* have the same name as a previous defparam, and will
override the previous defparam. So replace the map of parsed defparams
with a list of parsed defparams.

Also, as soon as the defparam expression is elaborated, the list entry
is no longer needed, so delete it. Save memory.

Module.h

@@ -22,6 +22,7 @@
 
 # include  <list>
 # include  <map>
+# include  <utility>
 # include  "svector.h"
 # include  "StringHeap.h"
 # include  "HName.h"
@@ -118,7 +119,8 @@ class Module : public PScope, public LineInfo {
 	   new parameters within the module, but may be used to set
 	   values within this module (when instantiated) or in other
 	   instantiated modules. */
-      map<pform_name_t,PExpr*>defparms;
+      typedef pair<pform_name_t,PExpr*> named_expr_t;
+      list<named_expr_t>defparms;
 
         /* Parameters may be overridden at instantiation time;
            the overrides do not contain explicit parameter names,
@@ -169,7 +171,7 @@ class Module : public PScope, public LineInfo {
       bool elaborate(Design*, NetScope*scope) const;
 
       typedef map<perm_string,NetExpr*> replace_t;
-      bool elaborate_scope(Design*, NetScope*scope, const replace_t&rep) const;
+      bool elaborate_scope(Design*, NetScope*scope, const replace_t&rep);
 
       bool elaborate_sig(Design*, NetScope*scope) const;
 

elab_scope.cc

@@ -182,7 +182,7 @@ static void elaborate_scope_funcs(Design*des, NetScope*scope,
 }
 
 bool Module::elaborate_scope(Design*des, NetScope*scope,
-			     const replace_t&replacements) const
+			     const replace_t&replacements)
 {
       if (debug_scopes) {
 	    cerr << get_fileline() << ": debug: Elaborate scope "
@@ -201,8 +201,6 @@ bool Module::elaborate_scope(Design*des, NetScope*scope,
 	// place of the elaborated expression.
 
       typedef map<perm_string,param_expr_t>::const_iterator mparm_it_t;
-      typedef map<pform_name_t,PExpr*>::const_iterator pform_parm_it_t;
-
 
 	// This loop scans the parameters in the module, and creates
 	// stub parameter entries in the scope for the parameter name.
@@ -286,15 +284,17 @@ bool Module::elaborate_scope(Design*des, NetScope*scope,
 	// here because the parameter receiving the assignment may be
 	// in a scope not discovered by this pass.
 
-      for (pform_parm_it_t cur = defparms.begin()
-		 ; cur != defparms.end() ;  cur ++ ) {
+      while (! defparms.empty()) {
+	    Module::named_expr_t cur = defparms.front();
+	    defparms.pop_front();
 
-	    PExpr*ex = (*cur).second;
+	    PExpr*ex = cur.second;
 	    assert(ex);
 
 	    NetExpr*val = ex->elaborate_pexpr(des, scope);
+	    delete ex;
 	    if (val == 0) continue;
-	    scope->defparams.push_back(make_pair(cur->first, val));
+	    scope->defparams.push_back(make_pair(cur.first, val));
       }
 
 	// Evaluate the attributes. Evaluate them in the scope of the

net_design.cc

@@ -240,8 +240,6 @@ void NetScope::run_defparams(Design*des)
 		 is the current scope. */
 	    NetScope*targ_scope = des->find_scope(this, eval_path);
 	    if (targ_scope == 0) {
-		  cerr << val->get_fileline() << ": warning: scope of " <<
-			path << "." << perm_name << " not found." << endl;
 
 		    // Push the defparam onto a list for retry
 		    // later. It is possible for the scope lookup to

pform.cc

@@ -1760,7 +1760,7 @@ void pform_set_specparam(perm_string name, PExpr*expr)
 void pform_set_defparam(const pform_name_t&name, PExpr*expr)
 {
       assert(expr);
-      pform_cur_module->defparms[name] = expr;
+      pform_cur_module->defparms.push_back(make_pair(name,expr));
 }
 
 /*

pform_dump.cc

@@ -991,7 +991,6 @@ void Module::dump(ostream&out) const
       }
 
       typedef map<perm_string,param_expr_t>::const_iterator parm_iter_t;
-      typedef map<pform_name_t,PExpr*>::const_iterator parm_hiter_t;
       for (parm_iter_t cur = parameters.begin()
 		 ; cur != parameters.end() ; cur ++) {
 	    out << "    parameter " << (*cur).second.type << " ";
@@ -1068,6 +1067,7 @@ void Module::dump(ostream&out) const
 		<< *(*cur).second << ";" << endl;
       }
 
+      typedef list<Module::named_expr_t>::const_iterator parm_hiter_t;
       for (parm_hiter_t cur = defparms.begin()
 		 ; cur != defparms.end() ;  cur ++) {
 	    out << "    defparam " << (*cur).first << " = ";

pform_types.cc

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2007 Stephen Williams (steve@icarus.com)
+ * Copyright (c) 2007-2008 Stephen Williams (steve@icarus.com)
  *
  *    This source code is free software; you can redistribute it
  *    and/or modify it in source code form under the terms of the GNU
@@ -16,17 +16,6 @@
  *    along with this program; if not, write to the Free Software
  *    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
  */
-#ifdef HAVE_CVS_IDENT
-#ident "$Id: pform_types.cc,v 1.1 2007/05/24 04:07:12 steve Exp $"
-#endif
 
 
 # include  "pform_types.h"
-
-bool operator < (const name_component_t&lef, const name_component_t&rig)
-{
-      if (lef.name < rig.name)
-	    return true;
-
-      return false;
-}

pform_types.h

@@ -1,7 +1,7 @@
 #ifndef __pform_types_H
 #define __pform_types_H
 /*
- * Copyright (c) 2007 Stephen Williams (steve@icarus.com)
+ * Copyright (c) 2007-2008 Stephen Williams (steve@icarus.com)
  *
  *    This source code is free software; you can redistribute it
  *    and/or modify it in source code form under the terms of the GNU
@@ -18,9 +18,6 @@
  *    along with this program; if not, write to the Free Software
  *    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
  */
-#ifdef HAVE_CVS_IDENT
-#ident "$Id: pform_types.h,v 1.2 2007/06/04 02:19:07 steve Exp $"
-#endif
 
 // This for the perm_string type.
 # include  "StringHeap.h"
@@ -50,7 +47,6 @@ struct name_component_t {
       std::list<index_component_t>index;
 };
 
-extern bool operator < (const name_component_t&lef, const name_component_t&rig);
 
 /*
  * The pform_name_t is the general form for a hierarchical