CallContextStubs.cpp

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/*----------------------------------------------------------------------------*/
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/* Copyright (c) 2005-2009 Rexx Language Association. All rights reserved.    */
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/******************************************************************************/
/* REXX API support                                                           */
/*                                                                            */
/* Stub functions for all APIs accessed via the NativeMethodContext           */
/*                                                                            */
/******************************************************************************/
 
#include "RexxCore.h"
#include "ContextApi.hpp"
#include "RexxNativeActivation.hpp"
#include "SupplierClass.hpp"
#include "Interpreter.hpp"
#include "MethodClass.hpp"
#include "PackageClass.hpp"
#include "DirectoryClass.hpp"
 
BEGIN_EXTERN_C()
 
RexxArrayObject RexxEntry GetCallArguments(RexxCallContext *c)
{
    ApiContext context(c);
    try
    {
        return (RexxArrayObject)context.context->getPositionalArguments();
    }
    catch (RexxNativeActivation *)
    {
    }
    return NULLOBJECT;
}
 
RexxObjectPtr RexxEntry GetCallArgument(RexxCallContext *c, stringsize_t i)
{
    ApiContext context(c);
    try
    {
        return (RexxObjectPtr)context.context->getPositionalArgument(i);
    }
    catch (RexxNativeActivation *)
    {
    }
    return NULLOBJECT;
}
 
CSTRING RexxEntry GetRoutineName(RexxCallContext *c)
{
    ApiContext context(c);
    try
    {
        return (CSTRING)context.context->getMessageName()->getStringData();
    }
    catch (RexxNativeActivation *)
    {
    }
    return NULL;
}
 
RexxRoutineObject RexxEntry GetCurrentRoutine(RexxCallContext *c)
{
    ApiContext context(c);
    try
    {
        return (RexxRoutineObject)context.context->getExecutable();
    }
    catch (RexxNativeActivation *)
    {
    }
    return NULL;
}
 
void RexxEntry SetContextVariable(RexxCallContext *c, CSTRING n, RexxObjectPtr v)
{
    ApiContext context(c);
    try
    {
        context.context->setContextVariable((const char *)n, (RexxObject *)v);
    }
    catch (RexxNativeActivation *)
    {
    }
}
 
RexxObjectPtr RexxEntry GetContextVariable(RexxCallContext *c, CSTRING n)
{
    ApiContext context(c);
    try
    {
        return (RexxObjectPtr)context.context->getContextVariable((const char *)n);
    }
    catch (RexxNativeActivation *)
    {
    }
    return NULLOBJECT;
}
 
void RexxEntry DropContextVariable(RexxCallContext *c, CSTRING n)
{
    ApiContext context(c);
    try
    {
        context.context->dropContextVariable((const char *)n);
    }
    catch (RexxNativeActivation *)
    {
    }
}
 
RexxDirectoryObject RexxEntry GetAllContextVariables(RexxCallContext *c)
{
    ApiContext context(c);
    try
    {
        return (RexxDirectoryObject)context.ret(context.context->getAllContextVariables());
    }
    catch (RexxNativeActivation *)
    {
    }
    return NULLOBJECT;
}
 
RexxStemObject RexxEntry ResolveStemVariable(RexxCallContext *c, RexxObjectPtr s)
{
    ApiContext context(c);
    try
    {
        return (RexxStemObject)context.context->resolveStemVariable((RexxObject *)s);
    }
    catch (RexxNativeActivation *)
    {
        // this may throw an exception, so clear it out.  The null return is the
        // failure indication.
        context.context->clearException();
    }
    return NULLOBJECT;
}
 
void RexxEntry InvalidRoutine(RexxCallContext *c)
{
    ApiContext context(c);
    try
    {
        // raise an exception which will be reraised when the caller returns.
        reportException(Error_Incorrect_call_external, context.context->getMessageName());
    }
    catch (RexxNativeActivation *)
    {
    }
}
 
void RexxEntry SetExitContextVariable(RexxExitContext *c, CSTRING n, RexxObjectPtr v)
{
    ApiContext context(c);
    try
    {
        context.context->setContextVariable((const char *)n, (RexxObject *)v);
    }
    catch (RexxNativeActivation *)
    {
    }
}
 
RexxObjectPtr RexxEntry GetExitContextVariable(RexxExitContext *c, CSTRING n)
{
    ApiContext context(c);
    try
    {
        return (RexxObjectPtr)context.context->getContextVariable((const char *)n);
    }
    catch (RexxNativeActivation *)
    {
    }
    return NULLOBJECT;
}
 
void RexxEntry DropExitContextVariable(RexxExitContext *c, CSTRING n)
{
    ApiContext context(c);
    try
    {
        context.context->dropContextVariable((const char *)n);
    }
    catch (RexxNativeActivation *)
    {
    }
}
 
RexxDirectoryObject RexxEntry GetAllExitContextVariables(RexxExitContext *c)
{
    ApiContext context(c);
    try
    {
        return (RexxDirectoryObject)context.ret(context.context->getAllContextVariables());
    }
    catch (RexxNativeActivation *)
    {
    }
    return NULLOBJECT;
}
 
 
RexxObjectPtr RexxEntry GetExitCallerContext(RexxExitContext *c)
{
    ApiContext context(c);
    try
    {
        return (RexxObjectPtr)context.ret(context.context->getRexxContextObject());
    }
    catch (RexxNativeActivation *)
    {
    }
    return NULLOBJECT;
}
 
stringsize_t RexxEntry GetContextDigits(RexxCallContext *c)
{
    ApiContext context(c);
    try
    {
        return context.context->digits();
    }
    catch (RexxNativeActivation *)
    {
    }
    return 0;
}
 
stringsize_t RexxEntry GetContextFuzz(RexxCallContext *c)
{
    ApiContext context(c);
    try
    {
        return context.context->fuzz();
    }
    catch (RexxNativeActivation *)
    {
    }
    return 0;
 
}
logical_t RexxEntry GetContextForm(RexxCallContext *c)
{
    ApiContext context(c);
    try
    {
        return context.context->form() ? true : false;
    }
    catch (RexxNativeActivation *)
    {
    }
    return false;
}
 
RexxObjectPtr RexxEntry GetCallerContext(RexxCallContext *c)
{
    ApiContext context(c);
    try
    {
        return (RexxObjectPtr)context.ret(context.context->getRexxContextObject());
    }
    catch (RexxNativeActivation *)
    {
    }
    return NULLOBJECT;
}
 
 
RexxClassObject RexxEntry FindCallContextClass(RexxCallContext *c, CSTRING n)
{
    ApiContext context(c);
    try
    {
        // convert the name to a string instance, and check the environments.
        RexxString *name = new_upper_string(n);
        return (RexxClassObject)context.ret(context.context->findCallerClass(name));
    }
    catch (RexxNativeActivation *)
    {
    }
    return NULLOBJECT;
}
 
 
END_EXTERN_C()
 
CallContextInterface RexxActivity::callContextFunctions =
{
    CALL_INTERFACE_VERSION,
    GetCallArguments,
    GetCallArgument,
    GetRoutineName,
    GetCurrentRoutine,
    SetContextVariable,
    GetContextVariable,
    DropContextVariable,
    GetAllContextVariables,
    ResolveStemVariable,
    InvalidRoutine,
    GetContextDigits,
    GetContextFuzz,
    GetContextForm,
    GetCallerContext,
    FindCallContextClass
};
 
ExitContextInterface RexxActivity::exitContextFunctions =
{
    EXIT_INTERFACE_VERSION,
    SetExitContextVariable,
    GetExitContextVariable,
    DropExitContextVariable,
    GetAllExitContextVariables,
    GetExitCallerContext,
};