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 SetCompExpr extends Expr 031 { 032 public /*@ non_null @*/ Type type; 033 034 public /*@ non_null @*/ FormalParaDecl fp; 035 036 public /*@ non_null @*/ Expr expr; 037 038 039 public int getStartLoc() { return fp.getStartLoc(); } 040 041 042 // Generated boilerplate constructors: 043 044 /** 045 * Construct a raw SetCompExpr whose class invariant(s) have not 046 * yet been established. It is the caller's job to 047 * initialize the returned node's fields so that any 048 * class invariants hold. 049 */ 050 //@ requires I_will_establish_invariants_afterwards; 051 protected SetCompExpr() {} //@ nowarn Invariant,NonNullInit; 052 053 054 // Generated boilerplate methods: 055 056 public final int childCount() { 057 return 3; 058 } 059 060 public final Object childAt(int index) { 061 /*throws IndexOutOfBoundsException*/ 062 if (index < 0) 063 throw new IndexOutOfBoundsException("AST child index " + index); 064 int indexPre = index; 065 066 int sz; 067 068 if (index == 0) return this.type; 069 else index--; 070 071 if (index == 0) return this.fp; 072 else index--; 073 074 if (index == 0) return this.expr; 075 else index--; 076 077 throw new IndexOutOfBoundsException("AST child index " + indexPre); 078 } //@ nowarn Exception; 079 080 public final String toString() { 081 return "[SetCompExpr" 082 + " type = " + this.type 083 + " fp = " + this.fp 084 + " expr = " + this.expr 085 + "]"; 086 } 087 088 public final int getTag() { 089 return TagConstants.SETCOMPEXPR; 090 } 091 092 public final void accept(javafe.ast.Visitor v) { 093 if (v instanceof Visitor) ((Visitor)v).visitSetCompExpr(this); 094 } 095 096 public final Object accept(javafe.ast.VisitorArgResult v, Object o) { 097 if (v instanceof VisitorArgResult) return ((VisitorArgResult)v).visitSetCompExpr(this, o); else return null; 098 } 099 100 public void check() { 101 this.type.check(); 102 this.fp.check(); 103 this.expr.check(); 104 } 105 106 //@ ensures \result != null; 107 public static SetCompExpr make(/*@ non_null @*/ Type type, /*@ non_null @*/ FormalParaDecl fp, /*@ non_null @*/ Expr expr) { 108 //@ set I_will_establish_invariants_afterwards = true; 109 SetCompExpr result = new SetCompExpr(); 110 result.type = type; 111 result.fp = fp; 112 result.expr = expr; 113 return result; 114 } 115 }