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 public class TryFinallyStmt extends Stmt 023 { 024 // @note locTry might will be shared with tryClause.locTry if 025 // tryClause is a TryCatchStmt 026 public /*@ non_null @*/ Stmt tryClause; 027 028 public /*@ non_null @*/ Stmt finallyClause; 029 030 //@ invariant loc != javafe.util.Location.NULL; 031 public int loc; 032 033 //@ invariant locFinally != javafe.util.Location.NULL; 034 public int locFinally; 035 036 037 private void postCheck() { 038 int t = tryClause.getTag(); 039 Assert.notFalse(t != TagConstants.SWITCHLABEL //@ nowarn Pre; 040 && t != TagConstants.CONSTRUCTORINVOCATION 041 && t != TagConstants.VARDECLSTMT); 042 t = finallyClause.getTag(); 043 Assert.notFalse(t != TagConstants.SWITCHLABEL //@ nowarn Pre; 044 && t != TagConstants.CONSTRUCTORINVOCATION 045 && t != TagConstants.VARDECLSTMT); 046 } 047 public int getStartLoc() { return loc; } 048 public int getEndLoc() { return finallyClause.getEndLoc(); } 049 050 051 // Generated boilerplate constructors: 052 053 /** 054 * Construct a raw TryFinallyStmt whose class invariant(s) have not 055 * yet been established. It is the caller's job to 056 * initialize the returned node's fields so that any 057 * class invariants hold. 058 */ 059 //@ requires I_will_establish_invariants_afterwards; 060 protected TryFinallyStmt() {} //@ nowarn Invariant,NonNullInit; 061 062 063 // Generated boilerplate methods: 064 065 public final int childCount() { 066 return 2; 067 } 068 069 public final Object childAt(int index) { 070 /*throws IndexOutOfBoundsException*/ 071 if (index < 0) 072 throw new IndexOutOfBoundsException("AST child index " + index); 073 int indexPre = index; 074 075 int sz; 076 077 if (index == 0) return this.tryClause; 078 else index--; 079 080 if (index == 0) return this.finallyClause; 081 else index--; 082 083 throw new IndexOutOfBoundsException("AST child index " + indexPre); 084 } //@ nowarn Exception; 085 086 public final String toString() { 087 return "[TryFinallyStmt" 088 + " tryClause = " + this.tryClause 089 + " finallyClause = " + this.finallyClause 090 + " loc = " + this.loc 091 + " locFinally = " + this.locFinally 092 + "]"; 093 } 094 095 public final int getTag() { 096 return TagConstants.TRYFINALLYSTMT; 097 } 098 099 public final void accept(Visitor v) { v.visitTryFinallyStmt(this); } 100 101 public final Object accept(VisitorArgResult v, Object o) {return v.visitTryFinallyStmt(this, o); } 102 103 public void check() { 104 super.check(); 105 this.tryClause.check(); 106 this.finallyClause.check(); 107 postCheck(); 108 } 109 110 //@ requires loc != javafe.util.Location.NULL; 111 //@ requires locFinally != javafe.util.Location.NULL; 112 //@ ensures \result != null; 113 public static TryFinallyStmt make(/*@ non_null @*/ Stmt tryClause, /*@ non_null @*/ Stmt finallyClause, int loc, int locFinally) { 114 //@ set I_will_establish_invariants_afterwards = true; 115 TryFinallyStmt result = new TryFinallyStmt(); 116 result.tryClause = tryClause; 117 result.finallyClause = finallyClause; 118 result.loc = loc; 119 result.locFinally = locFinally; 120 return result; 121 } 122 }