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