--          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 E_PRECURSOR_FUNCTION
   --   
   -- Handling of the pseudo variable "Current".
   --

inherit 
   E_PRECURSOR redefine run_feature end;
   EXPRESSION;
   
creation make

feature {NONE}

   run_feature: RUN_FEATURE_11;

feature

   is_pre_computable: BOOLEAN is false;

   is_static: BOOLEAN is false;

   is_writable: BOOLEAN is false;

   c_simple: BOOLEAN is false;
  
   can_be_dropped: BOOLEAN is false
  
   isa_dca_inline_argument: INTEGER is 0;

feature
   
   result_type: TYPE is
      do
	 Result := run_feature.result_type;
      end;
   

   collect_c_tmp is
      do
	 if run_feature /= Void then
	    run_feature.collect_c_tmp;
	 end;
	 if arguments /= Void then
	    arguments.collect_c_tmp;
	 end;
      end;

   
   to_runnable(ct: TYPE): like Current is
      local
	 wrf: RUN_FEATURE;
	 super: FUNCTION;
	 pn: PRECURSOR_NAME;
      do
	 if current_type = Void then
	    current_type := ct;
	    Result := Current;
	    wrf := small_eiffel.top_rf;
	    if wrf.result_type = Void then
	       eh.add_position(start_position);
	       fatal_error("Inside a procedure, a Precursor call must %
                           %be a procedure call (not a function call)."); 
	    end;
	    super ?= super_feature(wrf);
	    pn := precursor_name(wrf.name,super);
	    !!run_feature.make(ct,pn,super);
	    prepare_arguments(ct);
	 else
	    !!Result.make(start_position,parent,arguments);
	    Result := Result.to_runnable(ct);
	 end;
      end;

feature 

   static_value: INTEGER is
      do
      end;

   dca_inline_argument(formal_arg_type: TYPE) is
      do
      end;
   
   precedence: INTEGER is
      do
	 Result := dot_precedence;
      end;
      
feature

   mapping_c_target(formal_type: TYPE) is
      do
	 compile_to_c;
      end;

   mapping_c_arg(formal_arg_type: TYPE) is
      do
	 compile_to_c;
      end;
   
   c_declare_for_old is
      do
	 if arguments /= Void then
	    arguments.c_declare_for_old;
	 end;
      end;

   compile_to_c_old is
      do
	 if arguments /= Void then
	    arguments.compile_to_c_old;
	 end;
      end;

feature 
   
   compile_target_to_jvm is
      do
	 standard_compile_target_to_jvm;
      end;

   compile_to_jvm_old is
      do
	 if arguments /= Void then
	    arguments.compile_to_jvm_old;
	 end;
      end;
   
   compile_to_jvm_into(dest: TYPE): INTEGER is
      do
	 Result := standard_compile_to_jvm_into(dest);
      end;

feature

   compile_to_jvm_assignment(a: ASSIGNMENT) is
      do
      end;
   
   jvm_branch_if_false: INTEGER is
      do
	 compile_to_jvm;
	 Result := code_attribute.opcode_ifeq;
      end;

   jvm_branch_if_true: INTEGER is
      do
	 compile_to_jvm;
	 Result := code_attribute.opcode_ifne;
      end;
   
   jvm_assign is
      do
      end;

   bracketed_pretty_print is
      do
	 pretty_print;
      end;
   
   print_as_target is
      do
	 pretty_print;
	 fmt.put_character('.');
      end;

   short is
      do
      end;

   short_target is
      do
      end;

feature {NONE}

   put_semi_colon is
      do
      end;

end -- E_PRECURSOR_FUNCTION