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 /** 031 * @note If <code>loc</code> is <code>Location.NULL</code>, then this 032 * node is <em>not</em> due to a source-level "type" construct in an 033 * annotation expression but rather was created during translations. 034 */ 035 036 public class TypeExpr extends GCExpr 037 { 038 public /*@ non_null @*/ Type type; 039 040 041 042 // Generated boilerplate constructors: 043 044 /** 045 * Construct a raw TypeExpr 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 TypeExpr() {} //@ nowarn Invariant,NonNullInit; 052 053 054 // Generated boilerplate methods: 055 056 public final int childCount() { 057 return 1; 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 throw new IndexOutOfBoundsException("AST child index " + indexPre); 072 } //@ nowarn Exception; 073 074 public final String toString() { 075 return "[TypeExpr" 076 + " sloc = " + this.sloc 077 + " eloc = " + this.eloc 078 + " type = " + this.type 079 + "]"; 080 } 081 082 public final int getTag() { 083 return TagConstants.TYPEEXPR; 084 } 085 086 public final void accept(javafe.ast.Visitor v) { 087 if (v instanceof Visitor) ((Visitor)v).visitTypeExpr(this); 088 } 089 090 public final Object accept(javafe.ast.VisitorArgResult v, Object o) { 091 if (v instanceof VisitorArgResult) return ((VisitorArgResult)v).visitTypeExpr(this, o); else return null; 092 } 093 094 public void check() { 095 super.check(); 096 this.type.check(); 097 } 098 099 //@ ensures \result != null; 100 public static TypeExpr make(int sloc, int eloc, /*@ non_null @*/ Type type) { 101 //@ set I_will_establish_invariants_afterwards = true; 102 TypeExpr result = new TypeExpr(); 103 result.sloc = sloc; 104 result.eloc = eloc; 105 result.type = type; 106 return result; 107 } 108 }