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 public class BlockStmt extends GenericBlockStmt 023 { 024 private void postCheck() { 025 for(int i = 0; i < stmts.size(); i++) { 026 int t = stmts.elementAt(i).getTag(); 027 Assert.notFalse(t != TagConstants.SWITCHLABEL); //@ nowarn Pre; 028 Assert.notFalse(i == 0 //@ nowarn Pre; 029 || t != TagConstants.CONSTRUCTORINVOCATION); 030 } 031 } 032 public int getStartLoc() { return locOpenBrace; } 033 034 035 // Generated boilerplate constructors: 036 037 /** 038 * Construct a raw BlockStmt whose class invariant(s) have not 039 * yet been established. It is the caller's job to 040 * initialize the returned node's fields so that any 041 * class invariants hold. 042 */ 043 //@ requires I_will_establish_invariants_afterwards; 044 protected BlockStmt() {} //@ nowarn Invariant,NonNullInit; 045 046 047 // Generated boilerplate methods: 048 049 public final int childCount() { 050 int sz = 0; 051 if (this.stmts != null) sz += this.stmts.size(); 052 return sz + 0; 053 } 054 055 public final Object childAt(int index) { 056 /*throws IndexOutOfBoundsException*/ 057 if (index < 0) 058 throw new IndexOutOfBoundsException("AST child index " + index); 059 int indexPre = index; 060 061 int sz; 062 063 sz = (this.stmts == null ? 0 : this.stmts.size()); 064 if (0 <= index && index < sz) 065 return this.stmts.elementAt(index); 066 else index -= sz; 067 068 throw new IndexOutOfBoundsException("AST child index " + indexPre); 069 } //@ nowarn Exception; 070 071 public final String toString() { 072 return "[BlockStmt" 073 + " stmts = " + this.stmts 074 + " locOpenBrace = " + this.locOpenBrace 075 + " locCloseBrace = " + this.locCloseBrace 076 + "]"; 077 } 078 079 public final int getTag() { 080 return TagConstants.BLOCKSTMT; 081 } 082 083 public final void accept(Visitor v) { v.visitBlockStmt(this); } 084 085 public final Object accept(VisitorArgResult v, Object o) {return v.visitBlockStmt(this, o); } 086 087 public void check() { 088 super.check(); 089 for(int i = 0; i < this.stmts.size(); i++) 090 this.stmts.elementAt(i).check(); 091 postCheck(); 092 } 093 094 //@ requires locOpenBrace != javafe.util.Location.NULL; 095 //@ requires locCloseBrace != javafe.util.Location.NULL; 096 //@ ensures \result != null; 097 public static BlockStmt make(/*@ non_null @*/ StmtVec stmts, int locOpenBrace, int locCloseBrace) { 098 //@ set I_will_establish_invariants_afterwards = true; 099 BlockStmt result = new BlockStmt(); 100 result.stmts = stmts; 101 result.locOpenBrace = locOpenBrace; 102 result.locCloseBrace = locCloseBrace; 103 return result; 104 } 105 }