    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    /* ---------------------------------------------------------------------- */
    023
    024    public class CatchClause extends ASTNode
    025    {
    026      public /*@ non_null @*/ FormalParaDecl arg;
    027
    028      public /*@ non_null @*/ BlockStmt body;
    029
    030      //@ invariant loc != javafe.util.Location.NULL;
    031      public int loc;
    032
    033      public int getStartLoc() { return loc; }
    034      public int getEndLoc() { return body.getEndLoc(); }
    035
    036
    037    // Generated boilerplate constructors:
    038
    039      /**
    040       * Construct a raw CatchClause whose class invariant(s) have not
    041       * yet been established.  It is the caller's job to
    042       * initialize the returned node's fields so that any
    043       * class invariants hold.
    044       */
    045      //@ requires I_will_establish_invariants_afterwards;
    046      protected CatchClause() {}    //@ nowarn Invariant,NonNullInit;
    047
    048
    049    // Generated boilerplate methods:
    050
    051      public final int childCount() {
    052         return 2;
    053      }
    054
    055      public final Object childAt(int index) {
    056              /*throws IndexOutOfBoundsException*/
    057         if (index < 0)
    058            throw new IndexOutOfBoundsException("AST child index " + index);
    059         int indexPre = index;
    060
    061         int sz;
    062
    063         if (index == 0) return this.arg;
    064         else index--;
    065
    066         if (index == 0) return this.body;
    067         else index--;
    068
    069         throw new IndexOutOfBoundsException("AST child index " + indexPre);
    070      }   //@ nowarn Exception;
    071
    072      public final String toString() {
    073         return "[CatchClause"
    074            + " arg = " + this.arg
    075            + " body = " + this.body
    076            + " loc = " + this.loc
    077            + "]";
    078      }
    079
    080      public final int getTag() {
    081         return TagConstants.CATCHCLAUSE;
    082      }
    083
    084      public final void accept(Visitor v) { v.visitCatchClause(this); }
    085
    086      public final Object accept(VisitorArgResult v, Object o) {return v.visitCatchClause(this, o); }
    087
    088      public void check() {
    089         super.check();
    090         this.arg.check();
    091         this.body.check();
    092      }
    093
    094      //@ requires loc != javafe.util.Location.NULL;
    095      //@ ensures \result != null;
    096      public static CatchClause make(/*@ non_null @*/ FormalParaDecl arg, /*@ non_null @*/ BlockStmt body, int loc) {
    097         //@ set I_will_establish_invariants_afterwards = true;
    098         CatchClause result = new CatchClause();
    099         result.arg = arg;
    100         result.body = body;
    101         result.loc = loc;
    102         return result;
    103      }
    104    }