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proc_call_1.e
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2000-03-25
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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://SmallEiffel.loria.fr
-- 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 PROC_CALL_1
--
-- For a procedure call with only one argument.
--
inherit PROC_CALL redefine use_current end;
creation make, with
feature
arguments: EFFECTIVE_ARG_LIST;
feature {NONE}
make(t: like target; pn: like feature_name; a: like arguments) is
require
t /= Void;
pn /= Void;
a /= Void;
do
target := t;
feature_name := pn;
arguments := a;
ensure
target = t;
feature_name = pn;
arguments = a;
end;
with(t: like target; pn: like feature_name; a: like arguments;
rf: RUN_FEATURE; ct: TYPE) is
require
t /= Void;
pn /= Void;
a /= Void;
rf /= Void;
ct /= Void
do
target := t;
feature_name := pn;
arguments := a;
run_feature := rf;
run_feature_match(ct);
ensure
target = t;
feature_name = pn;
arguments = a;
run_feature = rf
end;
feature
arg_count: INTEGER is 1;
arg1: EXPRESSION is
do
Result := arguments.first;
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;
compile_to_jvm is
do
if as_c_inline_c = feature_name.to_string then
eh.add_position(start_position);
fatal_error(
"Cannot use %"c_inline_c%" to produce Java byte code.");
else
call_proc_call_c2jvm;
end;
end;
use_current: BOOLEAN is
local
ms: MANIFEST_STRING;
s: STRING;
do
if as_c_inline_c = feature_name.to_string then
ms ?= arg1;
if ms /= Void then
manifest_string_pool.used_for_c_inline(ms);
s := ms.to_string;
Result := s.has('C');
end;
else
Result := standard_use_current;
end;
end;
pretty_print is
do
target.print_as_target;
fmt.put_string(feature_name.to_string);
fmt.put_character('(');
arg1.pretty_print;
fmt.put_character(')');
if fmt.semi_colon_flag then
fmt.put_character(';');
end;
end;
feature {CREATION_CALL}
make_runnable(w: like target; a: like arguments;
rf: RUN_FEATURE): like Current is
do
if run_feature = Void then
target := w;
arguments := a;
run_feature := rf;
Result := Current;
else
!!Result.make(w,feature_name,a);
Result.set_run_feature(rf);
end;
end;
feature {NONE}
run_feature_match(ct: TYPE) is
do
run_feature_has_no_result;
arguments.match_with(run_feature,ct);
end;
invariant
arguments.count = 1
end -- PROC_CALL_1