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package com.legstar.base.visitor;

import com.legstar.base.ConversionException;
import com.legstar.base.type.composite.CobolArrayType;
import com.legstar.base.type.composite.CobolChoiceType;
import com.legstar.base.type.composite.CobolComplexType;
import com.legstar.base.type.primitive.CobolPrimitiveType;

/**
 * Visitor walk a COBOL complex structure described by linked {@link com.legstar.base.type.CobolType}
 * in a depth-first way (visit child before sibling).
 * 
 * Visitors are mutable objects keeping contextual data during traversal. They
 * are not thread safe.
 * 
 */
public interface CobolVisitor {

    void visit(CobolComplexType type) throws ConversionException;

    void visit(CobolArrayType type) throws ConversionException;

    void visit(CobolChoiceType type) throws ConversionException;

    void visit(CobolPrimitiveType < ? > type) throws ConversionException;

}