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 an initializing block of code as a class member 023 * 024 * We include modifiers for later extensibility to JDK 1.1, where both 025 * static and dynamic initializer blocks are allowed. 026 */ 027 028 public class InitBlock extends ASTNode implements TypeDeclElem 029 { 030 //@ invariant hasParent ==> parent != null; 031 public TypeDecl parent; 032 033 public int modifiers; 034 035 public ModifierPragmaVec pmodifiers; 036 037 public /*@ non_null @*/ BlockStmt block; 038 039 040 public TypeDecl getParent() { return parent; } 041 public void setParent(TypeDecl p) { parent = p; } 042 043 public int getModifiers() { return modifiers; } 044 public void setModifiers(int m) { modifiers = m; } 045 public ModifierPragmaVec getPModifiers() { return pmodifiers; } 046 public int getStartLoc() { return block.getStartLoc(); } 047 public int getEndLoc() { return block.getEndLoc(); } 048 049 050 // Generated boilerplate constructors: 051 052 /** 053 * Construct a raw InitBlock whose class invariant(s) have not 054 * yet been established. It is the caller's job to 055 * initialize the returned node's fields so that any 056 * class invariants hold. 057 */ 058 //@ requires I_will_establish_invariants_afterwards; 059 protected InitBlock() {} //@ nowarn Invariant,NonNullInit; 060 061 062 // Generated boilerplate methods: 063 064 public final int childCount() { 065 int sz = 0; 066 if (this.pmodifiers != null) sz += this.pmodifiers.size(); 067 return sz + 1; 068 } 069 070 public final Object childAt(int index) { 071 /*throws IndexOutOfBoundsException*/ 072 if (index < 0) 073 throw new IndexOutOfBoundsException("AST child index " + index); 074 int indexPre = index; 075 076 int sz; 077 078 sz = (this.pmodifiers == null ? 0 : this.pmodifiers.size()); 079 if (0 <= index && index < sz) 080 return this.pmodifiers.elementAt(index); 081 else index -= sz; 082 083 if (index == 0) return this.block; 084 else index--; 085 086 throw new IndexOutOfBoundsException("AST child index " + indexPre); 087 } //@ nowarn Exception; 088 089 public final String toString() { 090 return "[InitBlock" 091 + " modifiers = " + this.modifiers 092 + " pmodifiers = " + this.pmodifiers 093 + " block = " + this.block 094 + "]"; 095 } 096 097 public final int getTag() { 098 return TagConstants.INITBLOCK; 099 } 100 101 public final void accept(Visitor v) { v.visitInitBlock(this); } 102 103 public final Object accept(VisitorArgResult v, Object o) {return v.visitInitBlock(this, o); } 104 105 public void check() { 106 super.check(); 107 if (this.pmodifiers != null) 108 for(int i = 0; i < this.pmodifiers.size(); i++) 109 this.pmodifiers.elementAt(i).check(); 110 this.block.check(); 111 } 112 113 //@ ensures \result != null; 114 public static InitBlock make(int modifiers, ModifierPragmaVec pmodifiers, /*@ non_null @*/ BlockStmt block) { 115 //@ set I_will_establish_invariants_afterwards = true; 116 InitBlock result = new InitBlock(); 117 result.modifiers = modifiers; 118 result.pmodifiers = pmodifiers; 119 result.block = block; 120 return result; 121 } 122 }