com.sri.ai.grinder.sgdpllt.interpreter.AbstractInterpreter Maven / Gradle / Ivy
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package com.sri.ai.grinder.sgdpllt.interpreter;
import com.google.common.annotations.Beta;
import com.sri.ai.grinder.sgdpllt.api.MultiIndexQuantifierEliminator;
import com.sri.ai.grinder.sgdpllt.library.boole.ForAllRewriter;
import com.sri.ai.grinder.sgdpllt.library.boole.ThereExistsRewriter;
import com.sri.ai.grinder.sgdpllt.library.number.MaxRewriter;
import com.sri.ai.grinder.sgdpllt.library.number.ProductRewriter;
import com.sri.ai.grinder.sgdpllt.library.number.SummationRewriter;
import com.sri.ai.grinder.sgdpllt.library.set.CardinalityByBruteForce;
import com.sri.ai.grinder.sgdpllt.rewriter.api.Rewriter;
import com.sri.ai.grinder.sgdpllt.rewriter.api.TopRewriter;
import com.sri.ai.grinder.sgdpllt.rewriter.core.Exhaustive;
import com.sri.ai.grinder.sgdpllt.rewriter.core.Recursive;
import com.sri.ai.grinder.sgdpllt.rewriter.help.RedirectingRewriter;
/**
* A {@link Rewriter} based on a {@link TopRewriter},
* adding the functionality of solving quantified and aggregate expressions with a {@link MultiIndexQuantifierEliminator}
* provided by the implementation of an abstract method.
*
* @author braz
*
*/
@Beta
public abstract class AbstractInterpreter extends RedirectingRewriter {
/**
* Must provide a {@link MultiIndexQuantifierEliminator} based on given {@link TopRewriterUsingContextAssignments}.
* @param topRewriterUsingContextAssignments
* @return
*/
abstract protected MultiIndexQuantifierEliminator makeQuantifierEliminator(TopRewriterUsingContextAssignments topRewriterUsingContextAssignments);
public AbstractInterpreter() {
}
public void setBaseTopRewriter(TopRewriter baseTopRewriter) {
Rewriter result = new Recursive(new Exhaustive(new TopRewriterUsingQuantifierEliminatorAndContextAssignments(baseTopRewriter)));
setBaseRewriter(result);
}
protected class TopRewriterUsingQuantifierEliminatorAndContextAssignments extends TopRewriterUsingContextAssignments {
public TopRewriterUsingQuantifierEliminatorAndContextAssignments(TopRewriter baseTopRewriter) {
super();
MultiIndexQuantifierEliminator quantifierEliminator = makeQuantifierEliminator(this);
setBaseRewriter(
TopRewriter.merge(
baseTopRewriter,
new SummationRewriter(quantifierEliminator),
new ProductRewriter(quantifierEliminator),
new MaxRewriter(quantifierEliminator),
new ThereExistsRewriter(quantifierEliminator),
new ForAllRewriter(quantifierEliminator),
new CardinalityByBruteForce(quantifierEliminator)
));
}
}
}