    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 SubSubGetsCmd extends AssignCmd
    031    {
    032      // denotes v[index][index] := rhs.  I expect that v will be "elems".
    033      public /*@ non_null @*/ Expr index1;
    034
    035      public /*@ non_null @*/ Expr index2;
    036
    037
    038
    039    // Generated boilerplate constructors:
    040
    041      /**
    042       * Construct a raw SubSubGetsCmd whose class invariant(s) have not
    043       * yet been established.  It is the caller's job to
    044       * initialize the returned node's fields so that any
    045       * class invariants hold.
    046       */
    047      //@ requires I_will_establish_invariants_afterwards;
    048      protected SubSubGetsCmd() {}    //@ nowarn Invariant,NonNullInit;
    049
    050
    051    // Generated boilerplate methods:
    052
    053      public final int childCount() {
    054         return 4;
    055      }
    056
    057      public final Object childAt(int index) {
    058              /*throws IndexOutOfBoundsException*/
    059         if (index < 0)
    060            throw new IndexOutOfBoundsException("AST child index " + index);
    061         int indexPre = index;
    062
    063         int sz;
    064
    065         if (index == 0) return this.v;
    066         else index--;
    067
    068         if (index == 0) return this.rhs;
    069         else index--;
    070
    071         if (index == 0) return this.index1;
    072         else index--;
    073
    074         if (index == 0) return this.index2;
    075         else index--;
    076
    077         throw new IndexOutOfBoundsException("AST child index " + indexPre);
    078      }   //@ nowarn Exception;
    079
    080      public final String toString() {
    081         return "[SubSubGetsCmd"
    082            + " v = " + this.v
    083            + " rhs = " + this.rhs
    084            + " index1 = " + this.index1
    085            + " index2 = " + this.index2
    086            + "]";
    087      }
    088
    089      public final int getTag() {
    090         return TagConstants.SUBSUBGETSCMD;
    091      }
    092
    093      public final void accept(javafe.ast.Visitor v) {
    094        if (v instanceof Visitor) ((Visitor)v).visitSubSubGetsCmd(this);
    095      }
    096
    097      public final Object accept(javafe.ast.VisitorArgResult v, Object o) {
    098        if (v instanceof VisitorArgResult) return ((VisitorArgResult)v).visitSubSubGetsCmd(this, o); else return null;
    099      }
    100
    101      public void check() {
    102         super.check();
    103         this.v.check();
    104         this.rhs.check();
    105         this.index1.check();
    106         this.index2.check();
    107      }
    108
    109      //@ ensures \result != null;
    110      public static SubSubGetsCmd make(/*@ non_null @*/ VariableAccess v, /*@ non_null @*/ Expr rhs, /*@ non_null @*/ Expr index1, /*@ non_null @*/ Expr index2) {
    111         //@ set I_will_establish_invariants_afterwards = true;
    112         SubSubGetsCmd result = new SubSubGetsCmd();
    113         result.v = v;
    114         result.rhs = rhs;
    115         result.index1 = index1;
    116         result.index2 = index2;
    117         return result;
    118      }
    119    }