    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    /**
    031     * @note If <code>loc</code> is <code>Location.NULL</code>, then this
    032     * node is <em>not</em> due to a source-level "type" construct in an
    033     * annotation expression but rather was created during translations.
    034     */
    035
    036    public class TypeExpr extends GCExpr
    037    {
    038      public /*@ non_null @*/ Type type;
    039
    040
    041
    042    // Generated boilerplate constructors:
    043
    044      /**
    045       * Construct a raw TypeExpr 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 TypeExpr() {}    //@ nowarn Invariant,NonNullInit;
    052
    053
    054    // Generated boilerplate methods:
    055
    056      public final int childCount() {
    057         return 1;
    058      }
    059
    060      public final Object childAt(int index) {
    061              /*throws IndexOutOfBoundsException*/
    062         if (index < 0)
    063            throw new IndexOutOfBoundsException("AST child index " + index);
    064         int indexPre = index;
    065
    066         int sz;
    067
    068         if (index == 0) return this.type;
    069         else index--;
    070
    071         throw new IndexOutOfBoundsException("AST child index " + indexPre);
    072      }   //@ nowarn Exception;
    073
    074      public final String toString() {
    075         return "[TypeExpr"
    076            + " sloc = " + this.sloc
    077            + " eloc = " + this.eloc
    078            + " type = " + this.type
    079            + "]";
    080      }
    081
    082      public final int getTag() {
    083         return TagConstants.TYPEEXPR;
    084      }
    085
    086      public final void accept(javafe.ast.Visitor v) {
    087        if (v instanceof Visitor) ((Visitor)v).visitTypeExpr(this);
    088      }
    089
    090      public final Object accept(javafe.ast.VisitorArgResult v, Object o) {
    091        if (v instanceof VisitorArgResult) return ((VisitorArgResult)v).visitTypeExpr(this, o); else return null;
    092      }
    093
    094      public void check() {
    095         super.check();
    096         this.type.check();
    097      }
    098
    099      //@ ensures \result != null;
    100      public static TypeExpr make(int sloc, int eloc, /*@ non_null @*/ Type type) {
    101         //@ set I_will_establish_invariants_afterwards = true;
    102         TypeExpr result = new TypeExpr();
    103         result.sloc = sloc;
    104         result.eloc = eloc;
    105         result.type = type;
    106         return result;
    107      }
    108    }