001    // -*- mode: java -*-
002    /* Copyright 2000, 2001, Compaq Computer Corporation */
003    
004    /* IF THIS IS A JAVA FILE, DO NOT EDIT IT!  
005    
006       Most Java files in this directory which are part of the Javafe AST
007       are automatically generated using the astgen comment (see
008       ESCTools/Javafe/astgen) from the input file 'hierarchy.h'.  If you
009       wish to modify AST classes or introduce new ones, modify
010       'hierarchy.j.'
011     */
012    
013    package javafe.ast;
014    
015    import javafe.util.Assert;
016    import javafe.util.Location;
017    import javafe.util.ErrorSet;
018    
019    // Convention: unless otherwise noted, integer fields named "loc" refer
020    // to the location of the first character of the syntactic unit
021    
022    
023    /**
024     * Represents a class literal (Type . class)
025     */
026    
027    public class ClassLiteral extends Expr
028    {
029      //@ invariant type.syntax;
030      public /*@ non_null @*/ Type type;
031    
032      //@ invariant locDot != javafe.util.Location.NULL;
033      public int locDot;
034    
035    
036      //@ public represents startLoc <- type.getStartLoc();
037      public /*@ pure @*/ int getStartLoc() { return type.getStartLoc(); }
038    
039      //@ also public normal_behavior
040      //@ ensures \result == locDot;
041      public /*@ pure @*/ int getEndLoc() { return locDot; }
042    
043    
044    // Generated boilerplate constructors:
045    
046      //@ ensures this.type == type;
047      //@ ensures this.locDot == locDot;
048      protected ClassLiteral(/*@ non_null @*/ Type type, int locDot) {
049         super();
050         this.type = type;
051         this.locDot = locDot;
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 /*@non_null*/String toString() {
075         return "[ClassLiteral"
076            + " type = " + this.type
077            + " locDot = " + this.locDot
078            + "]";
079      }
080    
081      public final int getTag() {
082         return TagConstants.CLASSLITERAL;
083      }
084    
085      public final void accept(Visitor v) { v.visitClassLiteral(this); }
086    
087      public final Object accept(VisitorArgResult v, Object o) {return v.visitClassLiteral(this, o); }
088    
089      public void check() {
090         super.check();
091         this.type.check();
092      }
093    
094      //@ requires type.syntax;
095      //@ requires locDot != javafe.util.Location.NULL;
096      //@ ensures \result != null;
097      public static ClassLiteral make(/*@ non_null @*/ Type type, int locDot) {
098         ClassLiteral result = new ClassLiteral(type, locDot);
099         return result;
100      }
101    }