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 javafe.ast;
013    
014    import javafe.util.Assert;
015    import javafe.util.Location;
016    import javafe.util.ErrorSet;
017    
018    // Convention: unless otherwise noted, integer fields named "loc" refer
019    // to the location of the first character of the syntactic unit
020    
021    
022    /** Represents a LocalVariableDeclarationStatement.
023     *  The modifiers field of LocalVarDecl allow for future extensibility.
024     */
025    
026    public class LocalVarDecl extends GenericVarDecl
027    {
028      public VarInit init;
029    
030    
031      // The "locAssignOp" field is used only if "init" is non-null
032      public int locAssignOp;
033    
034    
035      private void postCheck() {
036        // Check invariants on modifiers...
037        // should be liberal...
038      }
039    
040      public int getEndLoc() {
041        if (init == null)
042          return super.getEndLoc();
043    
044        return init.getEndLoc();
045      }
046    
047    
048    // Generated boilerplate constructors:
049    
050      /**
051       * Construct a raw LocalVarDecl 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 LocalVarDecl() {}    //@ nowarn Invariant,NonNullInit;
058    
059    
060    // Generated boilerplate methods:
061    
062      public final int childCount() {
063         int sz = 0;
064         if (this.pmodifiers != null) sz += this.pmodifiers.size();
065         return sz + 3;
066      }
067    
068      public final Object childAt(int index) {
069              /*throws IndexOutOfBoundsException*/
070         if (index < 0)
071            throw new IndexOutOfBoundsException("AST child index " + index);
072         int indexPre = index;
073    
074         int sz;
075    
076         sz = (this.pmodifiers == null ? 0 : this.pmodifiers.size());
077         if (0 <= index && index < sz)
078            return this.pmodifiers.elementAt(index);
079         else index -= sz;
080    
081         if (index == 0) return this.id;
082         else index--;
083    
084         if (index == 0) return this.type;
085         else index--;
086    
087         if (index == 0) return this.init;
088         else index--;
089    
090         throw new IndexOutOfBoundsException("AST child index " + indexPre);
091      }   //@ nowarn Exception;
092    
093      public final String toString() {
094         return "[LocalVarDecl"
095            + " modifiers = " + this.modifiers
096            + " pmodifiers = " + this.pmodifiers
097            + " id = " + this.id
098            + " type = " + this.type
099            + " locId = " + this.locId
100            + " init = " + this.init
101            + " locAssignOp = " + this.locAssignOp
102            + "]";
103      }
104    
105      public final int getTag() {
106         return TagConstants.LOCALVARDECL;
107      }
108    
109      public final void accept(Visitor v) { v.visitLocalVarDecl(this); }
110    
111      public final Object accept(VisitorArgResult v, Object o) {return v.visitLocalVarDecl(this, o); }
112    
113      public void check() {
114         super.check();
115         if (this.pmodifiers != null)
116            for(int i = 0; i < this.pmodifiers.size(); i++)
117               this.pmodifiers.elementAt(i).check();
118         if (this.id == null) throw new RuntimeException();
119         this.type.check();
120         if (this.init != null)
121            this.init.check();
122         postCheck();
123      }
124    
125      //@ requires type.syntax;
126      //@ requires locId != javafe.util.Location.NULL;
127      //@ ensures \result != null;
128      public static LocalVarDecl make(int modifiers, ModifierPragmaVec pmodifiers, /*@ non_null @*/ Identifier id, /*@ non_null @*/ Type type, int locId, VarInit init, int locAssignOp) {
129         //@ set I_will_establish_invariants_afterwards = true;
130         LocalVarDecl result = new LocalVarDecl();
131         result.modifiers = modifiers;
132         result.pmodifiers = pmodifiers;
133         result.id = id;
134         result.type = type;
135         result.locId = locId;
136         result.init = init;
137         result.locAssignOp = locAssignOp;
138         return result;
139      }
140    }