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 /** Represents a field declaration. */ 023 024 public class FieldDecl extends GenericVarDecl implements TypeDeclElem 025 { 026 //@ invariant hasParent ==> parent != null; 027 public TypeDecl parent; 028 029 public VarInit init; 030 031 032 // The "locAssignOp" field is used only if "init" is non-null 033 public int locAssignOp; 034 035 036 private void postCheck() { 037 // Check invariants on modifiers... 038 // should be liberal... 039 } 040 041 public TypeDecl getParent() { return parent; } 042 public void setParent(TypeDecl p) { parent = p; } 043 public ModifierPragmaVec getPModifiers() { return null; } 044 045 public int getEndLoc() { 046 if (init == null) 047 return super.getEndLoc(); 048 049 return init.getEndLoc(); 050 } 051 052 053 // Generated boilerplate constructors: 054 055 /** 056 * Construct a raw FieldDecl whose class invariant(s) have not 057 * yet been established. It is the caller's job to 058 * initialize the returned node's fields so that any 059 * class invariants hold. 060 */ 061 //@ requires I_will_establish_invariants_afterwards; 062 protected FieldDecl() {} //@ nowarn Invariant,NonNullInit; 063 064 065 // Generated boilerplate methods: 066 067 public final int childCount() { 068 int sz = 0; 069 if (this.pmodifiers != null) sz += this.pmodifiers.size(); 070 return sz + 3; 071 } 072 073 public final Object childAt(int index) { 074 /*throws IndexOutOfBoundsException*/ 075 if (index < 0) 076 throw new IndexOutOfBoundsException("AST child index " + index); 077 int indexPre = index; 078 079 int sz; 080 081 sz = (this.pmodifiers == null ? 0 : this.pmodifiers.size()); 082 if (0 <= index && index < sz) 083 return this.pmodifiers.elementAt(index); 084 else index -= sz; 085 086 if (index == 0) return this.id; 087 else index--; 088 089 if (index == 0) return this.type; 090 else index--; 091 092 if (index == 0) return this.init; 093 else index--; 094 095 throw new IndexOutOfBoundsException("AST child index " + indexPre); 096 } //@ nowarn Exception; 097 098 public final String toString() { 099 return "[FieldDecl" 100 + " modifiers = " + this.modifiers 101 + " pmodifiers = " + this.pmodifiers 102 + " id = " + this.id 103 + " type = " + this.type 104 + " locId = " + this.locId 105 + " init = " + this.init 106 + " locAssignOp = " + this.locAssignOp 107 + "]"; 108 } 109 110 public final int getTag() { 111 return TagConstants.FIELDDECL; 112 } 113 114 public final void accept(Visitor v) { v.visitFieldDecl(this); } 115 116 public final Object accept(VisitorArgResult v, Object o) {return v.visitFieldDecl(this, o); } 117 118 public void check() { 119 super.check(); 120 if (this.pmodifiers != null) 121 for(int i = 0; i < this.pmodifiers.size(); i++) 122 this.pmodifiers.elementAt(i).check(); 123 if (this.id == null) throw new RuntimeException(); 124 this.type.check(); 125 if (this.init != null) 126 this.init.check(); 127 postCheck(); 128 } 129 130 //@ requires type.syntax; 131 //@ requires locId != javafe.util.Location.NULL; 132 //@ ensures \result != null; 133 public static FieldDecl make(int modifiers, ModifierPragmaVec pmodifiers, /*@ non_null @*/ Identifier id, /*@ non_null @*/ Type type, int locId, VarInit init, int locAssignOp) { 134 //@ set I_will_establish_invariants_afterwards = true; 135 FieldDecl result = new FieldDecl(); 136 result.modifiers = modifiers; 137 result.pmodifiers = pmodifiers; 138 result.id = id; 139 result.type = type; 140 result.locId = locId; 141 result.init = init; 142 result.locAssignOp = locAssignOp; 143 return result; 144 } 145 }