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• RubricStmt.java

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com.googlecode.sarasvati.rubric.lang.RubricStmt Maven / Gradle / Ivy

/*
    This file is part of Sarasvati.

    Sarasvati is free software: you can redistribute it and/or modify
    it under the terms of the GNU Lesser General Public License as
    published by the Free Software Foundation, either version 3 of the
    License, or (at your option) any later version.

    Sarasvati is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with Sarasvati.  If not, see .

    Copyright 2008, 2012 Paul Lorenz
*/

package com.googlecode.sarasvati.rubric.lang;

import com.googlecode.sarasvati.rubric.env.RubricEnv;
import com.googlecode.sarasvati.rubric.visitor.RubricVisitor;

/**
 * Base type for all Rubric statements
 *
 * @author Paul Lorenz
 */
public interface RubricStmt
{
  Object eval (RubricEnv env);

  void traverse (RubricVisitor visitor);

  boolean isEqualTo (RubricStmt stmt);

  boolean isDateSymbol ();

  boolean isIf ();

  boolean isRelativeDate ();

  boolean isResult ();

  boolean isStringSymbol ();

  boolean isDelayUntil();

  RubricStmtDateSymbol asDateSymbol ();

  RubricStmtIf asIf ();

  RubricStmtRelativeDate asRelativeDate ();

  RubricStmtResult asResult ();

  RubricStmtStringSymbol asStringSymbol ();

  RubricDelayUntilStmt asDelayUntilStmt();
}