--          This file is part of SmallEiffel The GNU Eiffel Compiler.
--          Copyright (C) 1994-98 LORIA - UHP - CRIN - INRIA - FRANCE
--            Dominique COLNET and Suzanne COLLIN - colnet@loria.fr 
--                       http://www.loria.fr/SmallEiffel
-- SmallEiffel is  free  software;  you can  redistribute it and/or modify it 
-- under the terms of the GNU General Public License as published by the Free
-- Software  Foundation;  either  version  2, or (at your option)  any  later 
-- version. SmallEiffel is distributed in the hope that it will be useful,but
-- WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
-- or  FITNESS FOR A PARTICULAR PURPOSE.   See the GNU General Public License 
-- for  more  details.  You  should  have  received a copy of the GNU General 
-- Public  License  along  with  SmallEiffel;  see the file COPYING.  If not,
-- write to the  Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-- Boston, MA 02111-1307, USA.
--
class CALL_N
   --
   -- For calls with more than one argument : "bar.foo(...)".
   -- For other calls, use CALL_0 or CALL_1.
   --  

inherit CALL;
   
creation make, with
   
feature

   arguments: EFFECTIVE_ARG_LIST;

   run_feature: RUN_FEATURE;

feature

   is_pre_computable: BOOLEAN is false;
   
   can_be_dropped: BOOLEAN is false;
   
feature {NONE}

   make(t: like target; sn: like feature_name; a: like arguments) is
      require
	 t /= void;
	 sn /= void;
	 a.count > 1;
      do
	 target := t;
	 feature_name := sn;
	 arguments := a;
      ensure
	 target = t;
	 feature_name = sn;
	 arguments = a
      end;
   
   with(t: like target; sn: like feature_name; a: like arguments;
	rf: RUN_FEATURE; ct: TYPE) is
      require
	 t /= void;
	 sn /= void;
	 a.count > 1;
	 rf /= Void;
	 ct /= Void
      do
	 target := t;
	 feature_name := sn;
	 arguments := a;
	 run_feature := rf;
	 run_feature_match(ct);
      ensure
	 target = t;
	 feature_name = sn;
	 arguments = a;
	 run_feature = rf
      end;
   
feature

   result_type: TYPE is
      local
	 tla: TYPE_LIKE_ARGUMENT;
	 e: EXPRESSION;
      do
	 Result := run_feature.result_type;
	 if Result.is_like_current then
	    Result := run_feature.current_type;
	 else
	    tla ?= Result;
	    if tla /= Void then
	       e := arguments.expression(tla.rank);
	       Result := e.result_type.run_type;
	    end;
	 end;
      end;

   precedence: INTEGER is
      do
	 Result := dot_precedence;
      end;
   
   compile_to_c is
      do
	 call_proc_call_c2c;
      end;
   
   isa_dca_inline_argument: INTEGER is
      do
      end;

   dca_inline_argument(formal_arg_type: TYPE) is
      do
      end;

   arg_count: INTEGER is
      do
	 Result := arguments.count;
      end;
   
   to_runnable(ct: TYPE): like Current is
      local
	 t: like target;
	 a: like arguments;
	 rf: RUN_FEATURE;
      do
	 t := runnable_expression(target,ct);
	 a := runnable_args(arguments,ct);
	 rf := run_feature_for(t,ct);
	 if run_feature = Void then
	    target := t;
	    arguments := a;
	    run_feature := rf;
	    run_feature_match(ct);
	    Result := Current;
	 elseif t = target and then a = arguments then
	    check
	       run_feature = rf
	    end;
	    Result := Current;
	 else
	    !!Result.with(t,feature_name,a,rf,ct);
	 end;
      end;
   
   bracketed_pretty_print, pretty_print is
      do
	 target.print_as_target;
	 fmt.put_string(feature_name.to_string);
	 fmt.level_incr;
	 arguments.pretty_print;
	 fmt.level_decr;
      end;

   short is
      do
	 target.short_target;
	 feature_name.short;
	 arguments.short;
      end;
   
   short_target is
      do
	 short;
	 short_print.a_dot;
      end;

   compile_to_jvm is
      do
	 call_proc_call_c2jvm;
      end;
   
   jvm_branch_if_false: INTEGER is
      do
	 Result := jvm_standard_branch_if_false;
      end;

   jvm_branch_if_true: INTEGER is
      do
	 Result := jvm_standard_branch_if_true;
      end;
   
   is_static: BOOLEAN is
      local
	 running: ARRAY[RUN_CLASS];
	 rf: like run_feature;
      do
	 running := run_feature.run_class.running;
	 if running /= Void and then running.count = 1 then
	    rf := running.first.dynamic(run_feature);
	    if rf.is_static then
	       Result := true;
	    end;
	 end;
      end;

   static_value: INTEGER is
      local
	 running: ARRAY[RUN_CLASS];
	 rf: like run_feature;
      do
	 running := run_feature.run_class.running;
	 if running /= Void and then running.count = 1 then
	    rf := running.first.dynamic(run_feature);
	    if rf.is_static then
	       Result := rf.static_value_mem;
	    end;
	 end;
      end;

feature {RUN_FEATURE_3,RUN_FEATURE_4}

   finalize is
      local
	 rc: RUN_CLASS;
	 rf: RUN_FEATURE;
      do
	 rf := run_feature;
	 rc := rf.current_type.run_class;
	 run_feature := rc.running.first.dynamic(rf);
      end;

feature {NONE}

   run_feature_match(ct: TYPE) is
      do
	 run_feature_has_result;
	 arguments.match_with(run_feature,ct); 
      end;

invariant
   
   arguments.count > 1;
   
end -- CALL_N