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 NumericalQuantifiedExpr extends GCExpr
031    {
032      // NumOf
033      public int quantifier;
034    
035      public /*@ non_null @*/ GenericVarDeclVec vars;
036    
037      public /*@ non_null @*/ Expr rangeExpr;
038    
039      public /*@ non_null @*/ Expr expr;
040    
041      public ExprVec nopats;
042    
043    
044      public final int getTag() { return quantifier; }
045    
046      private void postCheck() {
047        boolean goodtag =
048          (quantifier == TagConstants.NUM_OF);
049        Assert.notFalse(goodtag);
050      }
051    
052    
053    // Generated boilerplate constructors:
054    
055      /**
056       * Construct a raw NumericalQuantifiedExpr whose class invariant(s) have not
057       * yet been established.  It is the caller's job to
058       * initialize the returned node's fields so that any
059       * class invariants hold.
060       */
061      //@ requires I_will_establish_invariants_afterwards;
062      protected NumericalQuantifiedExpr() {}    //@ nowarn Invariant,NonNullInit;
063    
064    
065    // Generated boilerplate methods:
066    
067      public final int childCount() {
068         int sz = 0;
069         if (this.vars != null) sz += this.vars.size();
070         if (this.nopats != null) sz += this.nopats.size();
071         return sz + 2;
072      }
073    
074      public final Object childAt(int index) {
075              /*throws IndexOutOfBoundsException*/
076         if (index < 0)
077            throw new IndexOutOfBoundsException("AST child index " + index);
078         int indexPre = index;
079    
080         int sz;
081    
082         sz = (this.vars == null ? 0 : this.vars.size());
083         if (0 <= index && index < sz)
084            return this.vars.elementAt(index);
085         else index -= sz;
086    
087         if (index == 0) return this.rangeExpr;
088         else index--;
089    
090         if (index == 0) return this.expr;
091         else index--;
092    
093         sz = (this.nopats == null ? 0 : this.nopats.size());
094         if (0 <= index && index < sz)
095            return this.nopats.elementAt(index);
096         else index -= sz;
097    
098         throw new IndexOutOfBoundsException("AST child index " + indexPre);
099      }   //@ nowarn Exception;
100    
101      public final String toString() {
102         return "[NumericalQuantifiedExpr"
103            + " sloc = " + this.sloc
104            + " eloc = " + this.eloc
105            + " quantifier = " + this.quantifier
106            + " vars = " + this.vars
107            + " rangeExpr = " + this.rangeExpr
108            + " expr = " + this.expr
109            + " nopats = " + this.nopats
110            + "]";
111      }
112    
113      public final void accept(javafe.ast.Visitor v) { 
114        if (v instanceof Visitor) ((Visitor)v).visitNumericalQuantifiedExpr(this);
115      }
116    
117      public final Object accept(javafe.ast.VisitorArgResult v, Object o) { 
118        if (v instanceof VisitorArgResult) return ((VisitorArgResult)v).visitNumericalQuantifiedExpr(this, o); else return null;
119      }
120    
121      public void check() {
122         super.check();
123         for(int i = 0; i < this.vars.size(); i++)
124            this.vars.elementAt(i).check();
125         this.rangeExpr.check();
126         this.expr.check();
127         if (this.nopats != null)
128            for(int i = 0; i < this.nopats.size(); i++)
129               this.nopats.elementAt(i).check();
130         postCheck();
131      }
132    
133      //@ ensures \result != null;
134      public static NumericalQuantifiedExpr make(int sloc, int eloc, int quantifier, /*@ non_null @*/ GenericVarDeclVec vars, /*@ non_null @*/ Expr rangeExpr, /*@ non_null @*/ Expr expr, ExprVec nopats) {
135         //@ set I_will_establish_invariants_afterwards = true;
136         NumericalQuantifiedExpr result = new NumericalQuantifiedExpr();
137         result.sloc = sloc;
138         result.eloc = eloc;
139         result.quantifier = quantifier;
140         result.vars = vars;
141         result.rangeExpr = rangeExpr;
142         result.expr = expr;
143         result.nopats = nopats;
144         return result;
145      }
146    }