    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 GeneralizedQuantifiedExpr extends GCExpr
    031    {
    032      // Sum, Product, Max, Min
    033      public int quantifier;
    034
    035      public /*@ non_null @*/ GenericVarDeclVec vars;
    036
    037      public /*@ non_null @*/ Expr expr;
    038
    039      public /*@ non_null @*/ Expr rangeExpr;
    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.MIN
    049           || quantifier == TagConstants.PRODUCT
    050           || quantifier == TagConstants.MAXQUANT
    051           || quantifier == TagConstants.SUM);
    052        Assert.notFalse(goodtag);
    053      }
    054
    055
    056    // Generated boilerplate constructors:
    057
    058      /**
    059       * Construct a raw GeneralizedQuantifiedExpr whose class invariant(s) have not
    060       * yet been established.  It is the caller's job to
    061       * initialize the returned node's fields so that any
    062       * class invariants hold.
    063       */
    064      //@ requires I_will_establish_invariants_afterwards;
    065      protected GeneralizedQuantifiedExpr() {}    //@ nowarn Invariant,NonNullInit;
    066
    067
    068    // Generated boilerplate methods:
    069
    070      public final int childCount() {
    071         int sz = 0;
    072         if (this.vars != null) sz += this.vars.size();
    073         if (this.nopats != null) sz += this.nopats.size();
    074         return sz + 2;
    075      }
    076
    077      public final Object childAt(int index) {
    078              /*throws IndexOutOfBoundsException*/
    079         if (index < 0)
    080            throw new IndexOutOfBoundsException("AST child index " + index);
    081         int indexPre = index;
    082
    083         int sz;
    084
    085         sz = (this.vars == null ? 0 : this.vars.size());
    086         if (0 <= index && index < sz)
    087            return this.vars.elementAt(index);
    088         else index -= sz;
    089
    090         if (index == 0) return this.expr;
    091         else index--;
    092
    093         if (index == 0) return this.rangeExpr;
    094         else index--;
    095
    096         sz = (this.nopats == null ? 0 : this.nopats.size());
    097         if (0 <= index && index < sz)
    098            return this.nopats.elementAt(index);
    099         else index -= sz;
    100
    101         throw new IndexOutOfBoundsException("AST child index " + indexPre);
    102      }   //@ nowarn Exception;
    103
    104      public final String toString() {
    105         return "[GeneralizedQuantifiedExpr"
    106            + " sloc = " + this.sloc
    107            + " eloc = " + this.eloc
    108            + " quantifier = " + this.quantifier
    109            + " vars = " + this.vars
    110            + " expr = " + this.expr
    111            + " rangeExpr = " + this.rangeExpr
    112            + " nopats = " + this.nopats
    113            + "]";
    114      }
    115
    116      public final void accept(javafe.ast.Visitor v) {
    117        if (v instanceof Visitor) ((Visitor)v).visitGeneralizedQuantifiedExpr(this);
    118      }
    119
    120      public final Object accept(javafe.ast.VisitorArgResult v, Object o) {
    121        if (v instanceof VisitorArgResult) return ((VisitorArgResult)v).visitGeneralizedQuantifiedExpr(this, o); else return null;
    122      }
    123
    124      public void check() {
    125         super.check();
    126         for(int i = 0; i < this.vars.size(); i++)
    127            this.vars.elementAt(i).check();
    128         this.expr.check();
    129         this.rangeExpr.check();
    130         if (this.nopats != null)
    131            for(int i = 0; i < this.nopats.size(); i++)
    132               this.nopats.elementAt(i).check();
    133         postCheck();
    134      }
    135
    136      //@ ensures \result != null;
    137      public static GeneralizedQuantifiedExpr make(int sloc, int eloc, int quantifier, /*@ non_null @*/ GenericVarDeclVec vars, /*@ non_null @*/ Expr expr, /*@ non_null @*/ Expr rangeExpr, ExprVec nopats) {
    138         //@ set I_will_establish_invariants_afterwards = true;
    139         GeneralizedQuantifiedExpr result = new GeneralizedQuantifiedExpr();
    140         result.sloc = sloc;
    141         result.eloc = eloc;
    142         result.quantifier = quantifier;
    143         result.vars = vars;
    144         result.expr = expr;
    145         result.rangeExpr = rangeExpr;
    146         result.nopats = nopats;
    147         return result;
    148      }
    149    }