    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    }