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native_c.e
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1999-06-05
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138 lines
-- 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.
--
deferred class NATIVE_C
--
-- Common root for NATIVE_WITHOUT_CURRENT, NATIVE_INLINE_WITHOUT_CURRENT,
-- NATIVE_WITH_CURRENT and NATIVE_INLINE_WITH_CURRENT.
--
inherit NATIVE;
feature
need_prototype: BOOLEAN is
deferred
end;
feature
frozen c_define_function(rf8: RUN_FEATURE_8; bcn, name: STRING) is
do
if need_prototype then
rf8.c_prototype;
end;
if run_control.no_check then
body.clear;
body.extend('R');
body.extend('=');
wrapped_external_call(rf8.base_feature,rf8.arg_count);
rf8.c_define_with_body(body);
end;
end;
frozen c_mapping_function(rf8: RUN_FEATURE_8; bcn, name: STRING) is
do
if run_control.boost then
c_mapping_external(rf8.base_feature,rf8.arg_count);
else
rf8.default_mapping_function;
end;
end;
frozen c_define_procedure(rf7: RUN_FEATURE_7; bcn, name: STRING) is
do
if need_prototype then
rf7.c_prototype;
end;
if run_control.no_check then
body.clear;
wrapped_external_call(rf7.base_feature,rf7.arg_count);
rf7.c_define_with_body(body);
end;
end;
frozen c_mapping_procedure(rf7: RUN_FEATURE_7; bcn, name: STRING) is
do
if run_control.boost then
c_mapping_external(rf7.base_feature,rf7.arg_count);
cpp.put_string(fz_00);
else
rf7.default_mapping_procedure;
end;
end;
feature {NONE}
c_mapping_external(er: EXTERNAL_ROUTINE; arg_count: INTEGER) is
local
eruc, tcbd: BOOLEAN;
do
eruc := use_current(er);
if not eruc then
tcbd := cpp.target_cannot_be_dropped;
if tcbd then
cpp.put_character(',');
end;
end;
cpp.put_string(er.external_c_name);
cpp.put_character('(');
if eruc then
cpp.put_target_as_value;
end;
if arg_count > 0 then
if eruc then
cpp.put_character(',');
end;
cpp.put_arguments;
end;
cpp.put_character(')');
if not eruc and then tcbd then
cpp.put_character(')');
end;
end;
feature {NONE}
wrapped_external_call(er: EXTERNAL_ROUTINE; arg_count: INTEGER) is
local
i: INTEGER;
do
body.append(er.external_c_name);
body.extend('(');
if use_current(er) then
body.extend('C');
if arg_count > 0 then
body.extend(',');
end;
end;
from
i := 1;
until
i > arg_count
loop
body.extend('a');
i.append_in(body);
i := i + 1;
if i <= arg_count then
body.extend(',');
end;
end;
body.append(fz_14);
end;
end -- NATIVE_C