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/*
* Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
* Copyright (C) 2012 - Scilab Enterprises - Calixte DENIZET
*
* This file must be used under the terms of the CeCILL.
* This source file is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at
* http://www.cecill.info/licences/Licence_CeCILL_V2.1-en.txt
*
*/
#include "ScilabGateway.hxx"
namespace org_modules_external_objects
{
int ScilabGateway::objectExtract(char * fname, const int envId, void * pvApiCtx)
{
SciErr err;
char * fieldName = 0;
int tmpvar[2] = {0, 0};
int * addr = 0;
int * tab = 0;
int idObj = 0;
int eId = 0;
int ret = 0;
int type = -1;
err = getVarAddressFromPosition(pvApiCtx, Rhs, &addr);
if (err.iErr)
{
throw ScilabAbstractEnvironmentException(__LINE__, __FILE__, gettext("Invalid variable: cannot retrieve the data"));
}
eId = ScilabObjects::getEnvironmentId(addr, pvApiCtx);
ScilabAbstractEnvironment & env = ScilabEnvironments::getEnvironment(eId);
OptionsHelper & helper = env.getOptionsHelper();
ScilabGatewayOptions & options = env.getGatewayOptions();
OptionsHelper::setCopyOccurred(false);
ScilabObjects::initialization(env, pvApiCtx);
options.setIsNew(false);
const int inc = helper.getUseScilabIndex() ? -1 : 0;
idObj = ScilabObjects::getArgumentId(addr, tmpvar, false, false, eId, pvApiCtx);
/*
* If all the parameters are integer, we can guess that a matrix extraction is expected
*/
tab = new int[Rhs - 1];
for (int i = 1; i < Rhs; i++)
{
err = getVarAddressFromPosition(pvApiCtx, i, &addr);
if (err.iErr)
{
ScilabObjects::removeTemporaryVars(eId, tmpvar);
throw ScilabAbstractEnvironmentException(__LINE__, __FILE__, gettext("Invalid variable: cannot retrieve the data"));
}
tab[i - 1] = ScilabObjects::isPositiveIntegerAtAddress(addr, pvApiCtx);
if (tab[i - 1] == -1)
{
delete[] tab;
tab = 0;
break;
}
tab[i - 1] += inc;
}
ScilabObjects::removeTemporaryVars(eId, tmpvar);
if (tab)
{
try
{
ret = env.getarrayelement(idObj, tab, Rhs - 1);
}
catch (std::exception & e) { }
delete[] tab;
}
if (!ret)
{
err = getVarAddressFromPosition(pvApiCtx, 1, &addr);
if (err.iErr)
{
throw ScilabAbstractEnvironmentException(__LINE__, __FILE__, gettext("Invalid variable: cannot retrieve the data"));
}
if (isStringType(pvApiCtx, addr) && isScalar(pvApiCtx, addr) && getAllocatedSingleString(pvApiCtx, addr, &fieldName))
{
throw ScilabAbstractEnvironmentException(__LINE__, __FILE__, gettext("Wrong type for input argument #%d: A String expected."), 1);
}
if (fieldName)
{
try
{
type = env.getfieldtype(idObj, fieldName);
}
catch (std::exception & e)
{
freeAllocatedSingleString(fieldName);
throw;
}
if (type == -1)
{
freeAllocatedSingleString(fieldName);
}
}
if (type == -1)
{
int * args = new int[Rhs - 1];
int * tmpvar = new int[Rhs];
*tmpvar = 0;
for (int i = 0; i < Rhs - 1; i++)
{
int * laddr = 0;
err = getVarAddressFromPosition(pvApiCtx, i + 1, &laddr);
if (err.iErr)
{
ScilabObjects::removeTemporaryVars(eId, tmpvar);
delete[] tmpvar;
delete[] args;
throw ScilabAbstractEnvironmentException(__LINE__, __FILE__, gettext("Invalid variable: cannot retrieve the data"));
}
try
{
args[i] = ScilabObjects::getArgumentId(laddr, tmpvar, false, false, eId, pvApiCtx);
}
catch (ScilabAbstractEnvironmentException & e)
{
delete[] tmpvar;
delete[] args;
throw;
}
}
try
{
ret = env.extract(idObj, args, Rhs - 1);
}
catch (std::exception & e)
{
ScilabObjects::removeTemporaryVars(eId, tmpvar);
delete[] tmpvar;
delete[] args;
throw;
}
ScilabObjects::removeTemporaryVars(eId, tmpvar);
delete[] tmpvar;
delete[] args;
}
else
{
if (type == 0)
{
// setMethodName will free fieldName
options.setMethodName(fieldName);
options.setObjId(idObj);
OptionsHelper::setEnvId(eId);
ScilabObjects::copyInvocationMacroToStack(Rhs + 1, env, pvApiCtx);
LhsVar(1) = Rhs + 1;
PutLhsVar();
return 0;
}
else if (type == 1)
{
try
{
ret = env.getfield(idObj, fieldName);
}
catch (std::exception & e)
{
freeAllocatedSingleString(fieldName);
throw;
}
freeAllocatedSingleString(fieldName);
}
}
}
if (helper.getAutoUnwrap())
{
if (!ScilabObjects::unwrap(ret, Rhs + 1, eId, pvApiCtx))
{
try
{
ScilabObjects::createEnvironmentObjectAtPos(EXTERNAL_OBJECT, Rhs + 1, ret, eId, pvApiCtx);
}
catch (ScilabAbstractEnvironmentException & e)
{
env.removeobject(ret);
throw;
}
}
else
{
env.removeobject(ret);
}
}
else
{
try
{
ScilabObjects::createEnvironmentObjectAtPos(EXTERNAL_OBJECT, Rhs + 1, ret, eId, pvApiCtx);
}
catch (ScilabAbstractEnvironmentException & e)
{
env.removeobject(ret);
throw;
}
}
LhsVar(1) = Rhs + 1;
PutLhsVar();
return 0;
}
}
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