rexx-things/modules/api/c++/external/external_methods.cpp
2025-03-12 20:50:48 +00:00

134 lines
6.7 KiB
C++

/*----------------------------------------------------------------------------*/
/* */
/* Copyright (c) 2021 Rexx Language Association. All rights reserved. */
/* */
/* This program and the accompanying materials are made available under */
/* the terms of the Common Public License v1.0 which accompanies this */
/* distribution. A copy is also available at the following address: */
/* https://www.oorexx.org/license.html */
/* */
/* Redistribution and use in source and binary forms, with or */
/* without modification, are permitted provided that the following */
/* conditions are met: */
/* */
/* Redistributions of source code must retain the above copyright */
/* notice, this list of conditions and the following disclaimer. */
/* Redistributions in binary form must reproduce the above copyright */
/* notice, this list of conditions and the following disclaimer in */
/* the documentation and/or other materials provided with the distribution. */
/* */
/* Neither the name of Rexx Language Association nor the names */
/* of its contributors may be used to endorse or promote products */
/* derived from this software without specific prior written permission. */
/* */
/* THIS SOFTWARE IS PROVIDED BY THE COPYright HOLDERS AND CONTRIBUTORS */
/* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT */
/* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS */
/* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYright */
/* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, */
/* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED */
/* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, */
/* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY */
/* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING */
/* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS */
/* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
/* */
/*----------------------------------------------------------------------------*/
#include <oorexxapi.h>
#include <stdio.h>
// -----------------------------------------------------
RexxMethod0(int, // return type
NoArgMethodReturn123) // native method name
{
return 123; // return value
}
// -----------------------------------------------------
RexxMethod0(RexxObjectPtr, // return type a Rexx Object Pointer
NoArgMethodVoid) // native method name
{
fprintf(stdout, "(from native code) \"NoArgMethodVoid\"\n");
return NULLOBJECT; // indicate no return value !
}
// -----------------------------------------------------
RexxMethod1(int, // return type
OneArgMethodReturnArg, // native method name
OPTIONAL_int, arg1) // argument
{
fprintf(stdout, "(from native code) \"OneArgMethodReturnArg\": arg1=[%d]", arg1);
fprintf(stdout, " argumentExists(1)=[%d], argumentOmitted(1)=[%d]\n",
argumentExists(1), argumentOmitted(1));
return arg1; // return value
}
// -----------------------------------------------------
RexxMethod1(RexxObjectPtr, // return type a Rexx Object Pointer
OneArgMethodVoid, // native method name
int, arg1) // argument
{
fprintf(stdout, "(from native code) \"OneArgMethodVoid\": arg1=[%d]\n", arg1);
return NULLOBJECT; // indicate no return value !
}
// -----------------------------------------------------
RexxMethod2(int, // return type
TwoIntArgAdder, // native method name
int, arg1, // argument 1
int, arg2) // argument 2
{
return arg1 + arg2; // return value
}
// -----------------------------------------------------
RexxMethod2(double, // return type
TwoDoubleArgAdder, // native method name
double, arg1, // argument 1
double, arg2) // argument 2
{
return arg1 + arg2; // return value
}
// -----------------------------------------------------
RexxMethod2(RexxObjectPtr, // return type a Rexx Object Pointer
OneArgInvokeOrxMethod, // native method name
OSELF, self, // pseudo-argument: allow access to object instance
int, arg1) // argument from Rexx program!
{
fprintf(stdout, "(from native code) \"OneArgInvokeOrxMethod\": arg1=[%d]\n", arg1);
fprintf(stdout, "(from native code) invoking method \"hello\" in this very same object:\n");
context->SendMessage0(self,"HELLO");
return NULLOBJECT; // indicate no return value !
}
RexxMethodEntry orxtest_meths[] = {
REXX_METHOD(NoArgMethodReturn123 , NoArgMethodReturn123 ),
REXX_METHOD(NoArgMethodVoid , NoArgMethodVoid ),
REXX_METHOD(OneArgMethodReturnArg, OneArgMethodReturnArg),
REXX_METHOD(OneArgMethodVoid , OneArgMethodVoid ),
REXX_METHOD(TwoIntArgAdder , TwoIntArgAdder ),
REXX_METHOD(TwoDoubleArgAdder , TwoDoubleArgAdder ),
REXX_METHOD(OneArgInvokeOrxMethod, OneArgInvokeOrxMethod),
REXX_LAST_METHOD() // end marker
};
RexxPackageEntry DemoExternalMethods_package_entry = {
STANDARD_PACKAGE_HEADER
REXX_INTERPRETER_5_0_0, // ooRexx version 5.0.0 or higher required
"ExternalMethodsDemo", // name of the package
"1.0.0", // package information
NULL, // no load function
NULL, // no unload function
NULL, // the exported routines
orxtest_meths // the exported methods
};
// package loading stub.
OOREXX_GET_PACKAGE(DemoExternalMethods);