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