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 ModifiesGroupPragma extends ModifierPragma
031    {
032        public int tag;
033    
034        public /*@ non_null @*/ CondExprModifierPragmaVec items;
035    
036        public /*@ non_null @*/ Expr precondition;
037    
038        public int clauseLoc;
039    
040    
041        public int getStartLoc() { return clauseLoc; }
042    
043        static public ModifiesGroupPragma make(int tag, int loc) {
044            ModifiesGroupPragma t = new ModifiesGroupPragma();
045            t.tag = tag;
046            t.clauseLoc = loc;
047            t.precondition = null;
048            t.items = CondExprModifierPragmaVec.make();
049            return t;
050        }
051    
052        public void addElement(CondExprModifierPragma e) {
053            items.addElement(e);
054        }
055    
056        public ModifiesGroupPragma append(ModifiesGroupPragma m) {
057            items.append(m.items);
058            return this;
059        }
060    
061        public ModifiesGroupPragma append(CondExprModifierPragmaVec ev) {
062            items.append(ev);
063            return this;
064        }
065    
066    
067    // Generated boilerplate constructors:
068    
069        /**
070         * Construct a raw ModifiesGroupPragma whose class invariant(s) have not
071         * yet been established.  It is the caller's job to
072         * initialize the returned node's fields so that any
073         * class invariants hold.
074         */
075        //@ requires I_will_establish_invariants_afterwards;
076        protected ModifiesGroupPragma() {}    //@ nowarn Invariant,NonNullInit;
077    
078    
079    // Generated boilerplate methods:
080    
081        public final int childCount() {
082           int sz = 0;
083           if (this.items != null) sz += this.items.size();
084           return sz + 1;
085        }
086    
087        public final Object childAt(int index) {
088                /*throws IndexOutOfBoundsException*/
089           if (index < 0)
090              throw new IndexOutOfBoundsException("AST child index " + index);
091           int indexPre = index;
092    
093           int sz;
094    
095           sz = (this.items == null ? 0 : this.items.size());
096           if (0 <= index && index < sz)
097              return this.items.elementAt(index);
098           else index -= sz;
099    
100           if (index == 0) return this.precondition;
101           else index--;
102    
103           throw new IndexOutOfBoundsException("AST child index " + indexPre);
104        }   //@ nowarn Exception;
105    
106        public final String toString() {
107           return "[ModifiesGroupPragma"
108              + " tag = " + this.tag
109              + " items = " + this.items
110              + " precondition = " + this.precondition
111              + " clauseLoc = " + this.clauseLoc
112              + "]";
113        }
114    
115        public final int getTag() {
116           return TagConstants.MODIFIESGROUPPRAGMA;
117        }
118    
119        public final void accept(javafe.ast.Visitor v) { 
120            if (v instanceof Visitor) ((Visitor)v).visitModifiesGroupPragma(this);
121        }
122    
123        public final Object accept(javafe.ast.VisitorArgResult v, Object o) { 
124            if (v instanceof VisitorArgResult) return ((VisitorArgResult)v).visitModifiesGroupPragma(this, o); else return null;
125        }
126    
127        public void check() {
128           for(int i = 0; i < this.items.size(); i++)
129              this.items.elementAt(i).check();
130           this.precondition.check();
131        }
132    
133        //@ ensures \result != null;
134        public static ModifiesGroupPragma make(int tag, /*@ non_null @*/ CondExprModifierPragmaVec items, /*@ non_null @*/ Expr precondition, int clauseLoc) {
135           //@ set I_will_establish_invariants_afterwards = true;
136           ModifiesGroupPragma result = new ModifiesGroupPragma();
137           result.tag = tag;
138           result.items = items;
139           result.precondition = precondition;
140           result.clauseLoc = clauseLoc;
141           return result;
142        }
143    }