001    // -*- mode: java -*-
002    /* Copyright 2000, 2001, Compaq Computer Corporation */
003    
004    /* IF THIS IS A JAVA FILE, DO NOT EDIT IT!  
005    
006       Most Java files in this directory which are part of the Javafe AST
007       are automatically generated using the astgen comment (see
008       ESCTools/Javafe/astgen) from the input file 'hierarchy.h'.  If you
009       wish to modify AST classes or introduce new ones, modify
010       'hierarchy.j.'
011     */
012    
013    package escjava.ast;
014    
015    import java.util.Hashtable;
016    import java.util.Set;
017    import java.util.ArrayList;
018    
019    import javafe.ast.*;
020    import javafe.util.Assert;
021    import javafe.util.Location;
022    import escjava.ParsedRoutineSpecs;
023    
024    // Convention: unless otherwise noted, integer fields named "loc" refer
025    // to the location of the first character of the syntactic unit
026    
027    //# TagBase javafe.tc.TagConstants.LAST_TAG + 1
028    //# VisitorRoot javafe.ast.Visitor
029    
030    
031    public class SimpleCmd extends GuardedCmd
032    {
033      // Denotes skip or raise
034      public int cmd;
035    
036      public int loc;
037    
038    
039      public final int getTag() { return cmd; }
040    
041      private void postCheck() {
042        boolean goodtag =
043          (cmd == TagConstants.SKIPCMD || cmd == TagConstants.RAISECMD);
044        Assert.notFalse(goodtag);
045      }
046    
047      //@ public represents startLoc <- loc;
048      public /*@ pure @*/ int getStartLoc() { return loc; }
049    
050    
051    // Generated boilerplate constructors:
052    
053      //@ ensures this.cmd == cmd;
054      //@ ensures this.loc == loc;
055      protected SimpleCmd(int cmd, int loc) {
056         super();
057         this.cmd = cmd;
058         this.loc = loc;
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 /*@non_null*/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         SimpleCmd result = new SimpleCmd(cmd, loc);
101         return result;
102      }
103    }