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 VarInCmd extends GuardedCmd
031    {
032      // denotes VAR v IN g END.
033      public /*@ non_null @*/ GenericVarDeclVec v;
034    
035      public /*@ non_null @*/ GuardedCmd g;
036    
037    
038      public int getStartLoc() { return g.getStartLoc(); }
039      public int getEndLoc() { return g.getEndLoc(); }
040    
041    
042    // Generated boilerplate constructors:
043    
044      /**
045       * Construct a raw VarInCmd whose class invariant(s) have not
046       * yet been established.  It is the caller's job to
047       * initialize the returned node's fields so that any
048       * class invariants hold.
049       */
050      //@ requires I_will_establish_invariants_afterwards;
051      protected VarInCmd() {}    //@ nowarn Invariant,NonNullInit;
052    
053    
054    // Generated boilerplate methods:
055    
056      public final int childCount() {
057         int sz = 0;
058         if (this.v != null) sz += this.v.size();
059         return sz + 1;
060      }
061    
062      public final Object childAt(int index) {
063              /*throws IndexOutOfBoundsException*/
064         if (index < 0)
065            throw new IndexOutOfBoundsException("AST child index " + index);
066         int indexPre = index;
067    
068         int sz;
069    
070         sz = (this.v == null ? 0 : this.v.size());
071         if (0 <= index && index < sz)
072            return this.v.elementAt(index);
073         else index -= sz;
074    
075         if (index == 0) return this.g;
076         else index--;
077    
078         throw new IndexOutOfBoundsException("AST child index " + indexPre);
079      }   //@ nowarn Exception;
080    
081      public final String toString() {
082         return "[VarInCmd"
083            + " v = " + this.v
084            + " g = " + this.g
085            + "]";
086      }
087    
088      public final int getTag() {
089         return TagConstants.VARINCMD;
090      }
091    
092      public final void accept(javafe.ast.Visitor v) { 
093        if (v instanceof Visitor) ((Visitor)v).visitVarInCmd(this);
094      }
095    
096      public final Object accept(javafe.ast.VisitorArgResult v, Object o) { 
097        if (v instanceof VisitorArgResult) return ((VisitorArgResult)v).visitVarInCmd(this, o); else return null;
098      }
099    
100      public void check() {
101         super.check();
102         for(int i = 0; i < this.v.size(); i++)
103            this.v.elementAt(i).check();
104         this.g.check();
105      }
106    
107      //@ ensures \result != null;
108      public static VarInCmd make(/*@ non_null @*/ GenericVarDeclVec v, /*@ non_null @*/ GuardedCmd g) {
109         //@ set I_will_establish_invariants_afterwards = true;
110         VarInCmd result = new VarInCmd();
111         result.v = v;
112         result.g = g;
113         return result;
114      }
115    }