/**
* Constructs new operation call for the given operation and execution context.
*
* @param operation a valid AST operation to be called. <code>Note:</code> This must be an
* operation owned by a valid QVT Library module
* @param context non-QVT transformation context in which this operation will be called
* @exception IllegalArgumentException If the passed <code>operation</code> or <code>context
* </code> are <code>null</code>; or the operation is not valid AST element for construction
* of the call
*/
HelperOperationCall(Helper operation, NonTransformationExecutionContext context) {
if (operation == null || context == null) {
throw new IllegalArgumentException();
}
fOwningModule = QvtOperationalParserUtil.getOwningModule(operation);
if (fOwningModule == null) {
throw new IllegalArgumentException("Not a library query or helper"); // $NON-NLS-1$
}
fOperation = operation;
fContextType = QvtOperationalParserUtil.getContextualType(fOperation);
fArgumentTypes = new ArrayList<EClassifier>(fOperation.getEParameters().size());
for (EParameter eParam : fOperation.getEParameters()) {
EClassifier paramType = eParam.getEType();
if (paramType == null) {
throw new IllegalArgumentException("Parameter with no type"); // $NON-NLS-1$
}
fArgumentTypes.add(paramType);
}
fContext = context;
}
private Helper defineOperation(
org.eclipse.m2m.internal.qvt.oml.expressions.Library opModule,
QvtOperationalModuleEnv opEnv,
LibraryOperation libOp)
throws LibraryCreationException {
QvtLibraryOperation qvtLibOp = new QvtLibraryOperation(opEnv, libOp);
Helper helper =
org.eclipse.m2m.internal.qvt.oml.expressions.ExpressionsFactory.eINSTANCE.createHelper();
helper.setName(libOp.getName());
helper.setEType(qvtLibOp.getReturnType());
int index = 1;
for (EClassifier type : qvtLibOp.getParamTypes()) {
VarParameter varParam =
org.eclipse.m2m.internal.qvt.oml.expressions.ExpressionsFactory.eINSTANCE
.createVarParameter();
varParam.setKind(DirectionKind.IN);
varParam.setEType(type);
varParam.setName("arg" + index); // $NON-NLS-1$;
++index;
helper.getEParameters().add(varParam);
}
if (qvtLibOp.getContextType() != opModule) {
VarParameter varParam =
org.eclipse.m2m.internal.qvt.oml.expressions.ExpressionsFactory.eINSTANCE
.createVarParameter();
varParam.setKind(DirectionKind.IN);
varParam.setEType(qvtLibOp.getContextType());
varParam.setName(Environment.SELF_VARIABLE_NAME);
helper.setContext(varParam);
}
Class<?> returnClass =
(helper.getEType() != null) ? helper.getEType().getInstanceClass() : null;
CallHandlerAdapter.attach(helper, new Handler(libOp, returnClass));
return helper;
}
