org.modelcc.Position Maven / Gradle / Ivy

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ModelCC is a model-based parser generator (a.k.a. compiler compiler) that decouples language specification from language processing, avoiding some of the problems caused by grammar-driven parser generators. ModelCC receives a conceptual model as input, along with constraints that annotate it. It is then able to create a parser for the desired textual language and the generated parser fully automates the instantiation of the language conceptual model. ModelCC also includes a built-in reference resolution mechanism that results in abstract syntax graphs, rather than mere abstract syntax trees.

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/*
 * ModelCC, distributed under ModelCC Shared Software License, www.modelcc.org
 */

package org.modelcc;

import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

/**
 * Position constraint.
 */
@Target(ElementType.FIELD)
@Retention(RetentionPolicy.RUNTIME)
public @interface Position {

	  public static int BEFORE = 0;
	  public static int AFTER = 1;
	  public static int WITHIN = 2;
	  public static int BEFORELAST = 3;

	  public int[] position();

	  public String element();
  
	  public SeparatorPolicy separatorPolicy() default SeparatorPolicy.AFTER;
	  
}