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 DependsPragma extends TypeDeclElemPragma 031 { 032 public int tag; 033 034 public /*@ non_null @*/ Expr target; 035 036 public /*@ non_null @*/ ExprVec exprs; 037 038 public int loc; 039 040 041 public final int getTag() { return tag; } 042 043 public int getStartLoc() { return loc; } 044 public int getEndLoc() { return exprs.elementAt(exprs.size()-1).getEndLoc(); } 045 046 047 // Generated boilerplate constructors: 048 049 /** 050 * Construct a raw DependsPragma whose class invariant(s) have not 051 * yet been established. It is the caller's job to 052 * initialize the returned node's fields so that any 053 * class invariants hold. 054 */ 055 //@ requires I_will_establish_invariants_afterwards; 056 protected DependsPragma() {} //@ nowarn Invariant,NonNullInit; 057 058 059 // Generated boilerplate methods: 060 061 public final int childCount() { 062 int sz = 0; 063 if (this.exprs != null) sz += this.exprs.size(); 064 return sz + 1; 065 } 066 067 public final Object childAt(int index) { 068 /*throws IndexOutOfBoundsException*/ 069 if (index < 0) 070 throw new IndexOutOfBoundsException("AST child index " + index); 071 int indexPre = index; 072 073 int sz; 074 075 if (index == 0) return this.target; 076 else index--; 077 078 sz = (this.exprs == null ? 0 : this.exprs.size()); 079 if (0 <= index && index < sz) 080 return this.exprs.elementAt(index); 081 else index -= sz; 082 083 throw new IndexOutOfBoundsException("AST child index " + indexPre); 084 } //@ nowarn Exception; 085 086 public final String toString() { 087 return "[DependsPragma" 088 + " tag = " + this.tag 089 + " target = " + this.target 090 + " exprs = " + this.exprs 091 + " loc = " + this.loc 092 + "]"; 093 } 094 095 public final void accept(javafe.ast.Visitor v) { 096 if (v instanceof Visitor) ((Visitor)v).visitDependsPragma(this); 097 } 098 099 public final Object accept(javafe.ast.VisitorArgResult v, Object o) { 100 if (v instanceof VisitorArgResult) return ((VisitorArgResult)v).visitDependsPragma(this, o); else return null; 101 } 102 103 public void check() { 104 this.target.check(); 105 for(int i = 0; i < this.exprs.size(); i++) 106 this.exprs.elementAt(i).check(); 107 } 108 109 //@ ensures \result != null; 110 public static DependsPragma make(int tag, /*@ non_null @*/ Expr target, /*@ non_null @*/ ExprVec exprs, int loc) { 111 //@ set I_will_establish_invariants_afterwards = true; 112 DependsPragma result = new DependsPragma(); 113 result.tag = tag; 114 result.target = target; 115 result.exprs = exprs; 116 result.loc = loc; 117 return result; 118 } 119 }