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Java > Open Source Codes > com > sun > java_cup > internal > action_production


1
2 package com.sun.java_cup.internal;
3
4 /** A specialized version of a production used when we split an existing
5  * production in order to remove an embedded action. Here we keep a bit
6  * of extra bookkeeping so that we know where we came from.
7  * @version last updated: 11/25/95
8  * @author Scott Hudson
9  */
10
11 public class action_production extends production {
12
13   /** Constructor.
14    * @param base the production we are being factored out of.
15    * @param lhs_sym the LHS symbol for this production.
16    * @param rhs_parts array of production parts for the RHS.
17    * @param rhs_len how much of the rhs_parts array is valid.
18    * @param action_str the trailing reduce action for this production.
19    */
20   public action_production(
21     production base,
22     non_terminal lhs_sym,
23     production_part rhs_parts[],
24     int rhs_len,
25     String JavaDoc action_str)
26     throws internal_error
27     {
28       super(lhs_sym, rhs_parts, rhs_len, action_str);
29       _base_production = base;
30     }
31
32   /*. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .*/
33
34   /** The production we were taken out of. */
35   protected production _base_production;
36
37   /** The production we were taken out of. */
38   public production base_production() {return _base_production;}
39 }
40
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