added own error handler for the scope provider

 */

package de.ugoe.cs.swe;

import org.apache.log4j.Logger;

import org.eclipse.xtext.scoping.IScope;

import org.eclipse.xtext.scoping.impl.AbstractDeclarativeScopeProvider;

import org.eclipse.xtext.util.PolymorphicDispatcher;

import com.google.inject.Binder;

import com.google.inject.TypeLiteral;

import com.google.inject.name.Names;

import de.ugoe.cs.swe.scoping.TTCN3ScopeErrorHandler;

/**

 * Use this class to register components to be used at runtime / without the Equinox extension registry.

 */

public class TTCN3RuntimeModule extends AbstractTTCN3RuntimeModule {

	public void configureErrorHandler(Binder binder) {

		Logger logger = Logger.getLogger(PolymorphicDispatcher.class);

		//PolymorphicDispatcher.ErrorHandler<IScope> handler = new TTCN3ScopeErrorHandler<IScope>( logger );

		PolymorphicDispatcher.ErrorHandler<IScope> handler = new PolymorphicDispatcher.NullErrorHandler<IScope>();

		binder.bind(new TypeLiteral<PolymorphicDispatcher.ErrorHandler<IScope>>(){})

        	.annotatedWith(Names.named(AbstractDeclarativeScopeProvider.NAMED_ERROR_HANDLER))

        	.toInstance( handler );		

	}

}

package de.ugoe.cs.swe.scoping;

import org.apache.log4j.Logger;

import org.eclipse.xtext.util.PolymorphicDispatcher.ErrorHandler;

public class TTCN3ScopeErrorHandler<IScope> implements ErrorHandler<IScope> {

    private Logger logger;

    public TTCN3ScopeErrorHandler( Logger logger ) {

        this.logger = logger;

    }

    @Override

    public IScope handle( Object[] params, Throwable throwable ) {

        if( !(throwable instanceof NoSuchMethodException ) ) {

            logger.warn("Error in polymorphic dispatcher : "+throwable.getMessage(), throwable);

        }

        return null;

    }	

}