package org.eclipse.xtend.backend.expr;

import java.util.ArrayList;
import java.util.List;

import org.eclipse.xtend.backend.common.BackendType;
import org.eclipse.xtend.backend.common.ExecutionContext;
import org.eclipse.xtend.backend.common.ExpressionBase;
import org.eclipse.xtend.backend.common.SourcePos;


/**
 * 
 * @author Arno Haase (http://www.haase-consulting.com)
 */
public final class CreateCachedExpression extends ExpressionBase {
    private final BackendType _t;
    private final List<ExpressionBase> _paramExpr;

    public CreateCachedExpression (BackendType t, List<ExpressionBase> paramExpr, SourcePos sourcePos) {
        super(sourcePos);
        
        _t = t;
        _paramExpr = paramExpr;
    }

    @Override
    public Object evaluateInternal(ExecutionContext ctx) {
        final List<Object> params = new ArrayList<Object>();
        
        for (ExpressionBase e: _paramExpr)
            params.add (e.evaluate(ctx));
        
        return ctx.getCreationCache().createRaw (_t, params);
    }
}