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 }