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- -- 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.
- --
- deferred class CALL_1
- --
- -- For calls with only one argument.
- --
-
- inherit CALL;
-
- feature
-
- arguments: EFFECTIVE_ARG_LIST;
-
- feature
-
- make(t: like target; fn: like feature_name; a: like arguments) is
- require
- t /= Void;
- fn /= Void;
- a /= Void;
- do
- target := t;
- feature_name := fn;
- arguments := a;
- ensure
- target = t;
- feature_name = fn;
- arguments = a;
- end;
-
- feature
-
- can_be_dropped: BOOLEAN is do end;
- -- ******************************* VERIFIER CA ???
-
- is_pre_computable: BOOLEAN is false;
-
- arg1: EXPRESSION is
- do
- Result := arguments.first;
- end;
-
- arg_count: INTEGER is 1;
-
- to_runnable(ct: TYPE): like Current is
- local
- a: like arguments;
- tla: TYPE_LIKE_ARGUMENT;
- do
- if current_type = Void then
- to_runnable_0(ct);
- a := arguments.to_runnable(ct);
- if a = Void then
- error(arg1.start_position,fz_bad_argument);
- else
- arguments := a;
- end;
- if nb_errors = 0 then
- arguments.match_with(run_feature);
- end;
- if nb_errors = 0 then
- tla ?= result_type;
- if tla /= Void then
- result_type := arg1.result_type.run_type;
- end;
- end;
- if nb_errors = 0 then
- Result := Current;
- end;
- else
- Result := twin;
- Result.set_current_type(Void);
- Result := Result.to_runnable(ct);
- end;
- end;
-
- feature {NONE}
-
- with_target(t: like target) is
- require
- t.is_checked;
- do
- target := t;
- end;
-
- invariant
-
- arguments.count = 1
-
- end -- CALL_1
-
-