    001    /* Copyright 2000, 2001, Compaq Computer Corporation */
    002
    003    /* IF THIS IS A JAVA FILE, DO NOT EDIT IT!
    004
    005       Most Java files in this directory which are part of the Javafe AST
    006       are automatically generated using the astgen comment (see
    007       ESCTools/Javafe/astgen) from the input file 'hierarchy.h'.  If you
    008       wish to modify AST classes or introduce new ones, modify
    009       'hierarchy.j.'
    010     */
    011
    012    package escjava.ast;
    013
    014    import java.util.Hashtable;
    015    import java.util.Set;
    016    import java.util.ArrayList;
    017
    018    import javafe.ast.*;
    019    import javafe.util.Assert;
    020    import javafe.util.Location;
    021    import escjava.ParsedRoutineSpecs;
    022
    023    // Convention: unless otherwise noted, integer fields named "loc" refer
    024    // to the location of the first character of the syntactic unit
    025
    026    //# TagBase javafe.tc.TagConstants.LAST_TAG + 1
    027    //# VisitorRoot javafe.ast.Visitor
    028
    029
    030    public class SimpleCmd extends GuardedCmd
    031    {
    032      // Denotes skip or raise
    033      public int cmd;
    034
    035      public int loc;
    036
    037
    038      public final int getTag() { return cmd; }
    039
    040      private void postCheck() {
    041        boolean goodtag =
    042          (cmd == TagConstants.SKIPCMD || cmd == TagConstants.RAISECMD);
    043        Assert.notFalse(goodtag);
    044      }
    045
    046      public int getStartLoc() { return loc; }
    047
    048
    049    // Generated boilerplate constructors:
    050
    051      /**
    052       * Construct a raw SimpleCmd whose class invariant(s) have not
    053       * yet been established.  It is the caller's job to
    054       * initialize the returned node's fields so that any
    055       * class invariants hold.
    056       */
    057      //@ requires I_will_establish_invariants_afterwards;
    058      protected SimpleCmd() {}    //@ nowarn Invariant,NonNullInit;
    059
    060
    061    // Generated boilerplate methods:
    062
    063      public final int childCount() {
    064         return 0;
    065      }
    066
    067      public final Object childAt(int index) {
    068              /*throws IndexOutOfBoundsException*/
    069         if (index < 0)
    070            throw new IndexOutOfBoundsException("AST child index " + index);
    071         int indexPre = index;
    072
    073         int sz;
    074
    075         throw new IndexOutOfBoundsException("AST child index " + indexPre);
    076      }   //@ nowarn Exception;
    077
    078      public final String toString() {
    079         return "[SimpleCmd"
    080            + " cmd = " + this.cmd
    081            + " loc = " + this.loc
    082            + "]";
    083      }
    084
    085      public final void accept(javafe.ast.Visitor v) {
    086        if (v instanceof Visitor) ((Visitor)v).visitSimpleCmd(this);
    087      }
    088
    089      public final Object accept(javafe.ast.VisitorArgResult v, Object o) {
    090        if (v instanceof VisitorArgResult) return ((VisitorArgResult)v).visitSimpleCmd(this, o); else return null;
    091      }
    092
    093      public void check() {
    094         super.check();
    095         postCheck();
    096      }
    097
    098      //@ ensures \result != null;
    099      public static SimpleCmd make(int cmd, int loc) {
    100         //@ set I_will_establish_invariants_afterwards = true;
    101         SimpleCmd result = new SimpleCmd();
    102         result.cmd = cmd;
    103         result.loc = loc;
    104         return result;
    105      }
    106    }