package org.simantics.scl.reflection.functions;

import java.lang.reflect.Constructor;
import java.lang.reflect.InvocationTargetException;

import org.simantics.scl.runtime.function.FunctionImplN;

public class ConstructorFunction extends FunctionImplN {
    Constructor<?> constructor;

    public ConstructorFunction(Constructor<?> constructor) {
        super(constructor.getParameterTypes().length);
        this.constructor = constructor;
    }
    
    public Constructor<?> getConstructor() {
        return constructor;
    }

    @Override
    public Object doApply(Object... ps) {
        try {
            return constructor.newInstance(ps);
        } catch (InstantiationException e) {
            throw new RuntimeException(e);
        } catch (IllegalArgumentException e) {
            throw new RuntimeException(e);
        } catch (IllegalAccessException e) {
            throw new RuntimeException(e);
        } catch (InvocationTargetException e) {
            throw new RuntimeException(e.getCause());
        }
    }
    
    @Override
    public String toString() {
        return constructor.getName();
    }
}