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 SubSubGetsCmd extends AssignCmd 031 { 032 // denotes v[index][index] := rhs. I expect that v will be "elems". 033 public /*@ non_null @*/ Expr index1; 034 035 public /*@ non_null @*/ Expr index2; 036 037 038 039 // Generated boilerplate constructors: 040 041 /** 042 * Construct a raw SubSubGetsCmd whose class invariant(s) have not 043 * yet been established. It is the caller's job to 044 * initialize the returned node's fields so that any 045 * class invariants hold. 046 */ 047 //@ requires I_will_establish_invariants_afterwards; 048 protected SubSubGetsCmd() {} //@ nowarn Invariant,NonNullInit; 049 050 051 // Generated boilerplate methods: 052 053 public final int childCount() { 054 return 4; 055 } 056 057 public final Object childAt(int index) { 058 /*throws IndexOutOfBoundsException*/ 059 if (index < 0) 060 throw new IndexOutOfBoundsException("AST child index " + index); 061 int indexPre = index; 062 063 int sz; 064 065 if (index == 0) return this.v; 066 else index--; 067 068 if (index == 0) return this.rhs; 069 else index--; 070 071 if (index == 0) return this.index1; 072 else index--; 073 074 if (index == 0) return this.index2; 075 else index--; 076 077 throw new IndexOutOfBoundsException("AST child index " + indexPre); 078 } //@ nowarn Exception; 079 080 public final String toString() { 081 return "[SubSubGetsCmd" 082 + " v = " + this.v 083 + " rhs = " + this.rhs 084 + " index1 = " + this.index1 085 + " index2 = " + this.index2 086 + "]"; 087 } 088 089 public final int getTag() { 090 return TagConstants.SUBSUBGETSCMD; 091 } 092 093 public final void accept(javafe.ast.Visitor v) { 094 if (v instanceof Visitor) ((Visitor)v).visitSubSubGetsCmd(this); 095 } 096 097 public final Object accept(javafe.ast.VisitorArgResult v, Object o) { 098 if (v instanceof VisitorArgResult) return ((VisitorArgResult)v).visitSubSubGetsCmd(this, o); else return null; 099 } 100 101 public void check() { 102 super.check(); 103 this.v.check(); 104 this.rhs.check(); 105 this.index1.check(); 106 this.index2.check(); 107 } 108 109 //@ ensures \result != null; 110 public static SubSubGetsCmd make(/*@ non_null @*/ VariableAccess v, /*@ non_null @*/ Expr rhs, /*@ non_null @*/ Expr index1, /*@ non_null @*/ Expr index2) { 111 //@ set I_will_establish_invariants_afterwards = true; 112 SubSubGetsCmd result = new SubSubGetsCmd(); 113 result.v = v; 114 result.rhs = rhs; 115 result.index1 = index1; 116 result.index2 = index2; 117 return result; 118 } 119 }