/*Make sure current lookahead symbol matches the given set
* Throw an exception upon mismatch, which is catch by either the
* error handler or by the syntactic predicate.
*/
public virtual void match(AST t, BitSet b)
{
if (t == null || t == ASTNULL || !b.member(t.Type))
{
throw new MismatchedTokenException(getTokenNames(), t, b, false);
}
}
/*Consume tokens until one matches the given token set */
public virtual void consumeUntil(BitSet bset)
{
while (LA(1) != Token.EOF_TYPE && !bset.member(LA(1)))
{
consume();
}
}
/*Consume chars until one matches the given set */
public virtual void consumeUntil(BitSet bset)
{
while (cached_LA1 != EOF_CHAR && !bset.member(cached_LA1))
{
consume();
}
}
public virtual void match(BitSet b)
{
if (!b.member(cached_LA1))
{
throw new MismatchedCharException(cached_LA1, b, false, this);
}
consume();
}
// Expected BitSet / not BitSet
public MismatchedCharException(char c, BitSet set_, bool matchNot, CharScanner scanner_) :
base("Mismatched char", scanner_.getFilename(), scanner_.getLine(), scanner_.getColumn())
{
mismatchType = matchNot ? CharTypeEnum.NotSetType : CharTypeEnum.SetType;
foundChar = c;
bset = set_;
scanner = scanner_;
}
// Expected BitSet / not BitSet
public MismatchedTokenException(string[] tokenNames_, IToken token_, BitSet set_, bool matchNot, string fileName_) :
base("Mismatched Token", fileName_, token_.getLine(), token_.getColumn())
{
tokenNames = tokenNames_;
token = token_;
tokenText = token_.getText();
mismatchType = matchNot ? TokenTypeEnum.NotSetType : TokenTypeEnum.SetType;
bset = set_;
}
/*Make sure current lookahead symbol matches the given set
* Throw an exception upon mismatch, which is catch by either the
* error handler or by the syntactic predicate.
*/
public virtual void match(BitSet b)
{
if (!b.member(LA(1)))
{
throw new MismatchedTokenException(tokenNames, LT(1), b, false, getFilename());
}
else
{
consume();
}
}
// Expected BitSet / not BitSet
public MismatchedTokenException(string[] tokenNames_, AST node_, BitSet set_, bool matchNot) :
base("Mismatched Token", "<AST>", -1, -1)
{
tokenNames = tokenNames_;
node = node_;
if (node_ == null)
{
tokenText = "<empty tree>";
}
else
{
tokenText = node_.ToString();
}
mismatchType = matchNot ? TokenTypeEnum.NotSetType : TokenTypeEnum.SetType;
bset = set_;
}
public virtual object Clone()
{
BitSet s;
try
{
s = new BitSet();
s.dataBits = new long[dataBits.Length];
Array.Copy(dataBits, 0, s.dataBits, 0, dataBits.Length);
}
catch //(System.Exception e)
{
throw new System.ApplicationException();
}
return s;
}
public virtual void recover(RecognitionException ex, BitSet tokenSet)
{
consume();
consumeUntil(tokenSet);
}
/*Make sure current lookahead symbol matches the given set
* Throw an exception upon mismatch, which is catch by either the
* error handler or by the syntactic predicate.
*/
public virtual void match(BitSet b)
{
if (!b.member(LA(1)))
throw new MismatchedTokenException(tokenNames, LT(1), b, false, getFilename());
else
consume();
}
/*Consume chars until one matches the given set */
public virtual void consumeUntil(BitSet bset)
{
while (cached_LA1 != EOF_CHAR && !bset.member(cached_LA1))
{
consume();
}
}
// Expected BitSet / not BitSet
public MismatchedCharException(char c, BitSet set_, bool matchNot, CharScanner scanner_) :
base("Mismatched char", scanner_.getFilename(), scanner_.getLine(), scanner_.getColumn())
{
mismatchType = matchNot ? CharTypeEnum.NotSetType : CharTypeEnum.SetType;
foundChar = c;
bset = set_;
scanner = scanner_;
}
public TokenStreamBasicFilter(TokenStream input)
{
this.input = input;
discardMask = new BitSet();
}
public virtual void hide(BitSet mask)
{
hideMask = mask;
}
// Expected BitSet / not BitSet
public MismatchedTokenException(string[] tokenNames_, AST node_, BitSet set_, bool matchNot) :
base("Mismatched Token", "<AST>", - 1, - 1)
{
tokenNames = tokenNames_;
node = node_;
if (node_ == null)
{
tokenText = "<empty tree>";
}
else
{
tokenText = node_.ToString();
}
mismatchType = matchNot ? TokenTypeEnum.NotSetType : TokenTypeEnum.SetType;
bset = set_;
}
public virtual void discard(BitSet mask)
{
discardMask = mask;
}
public TokenStreamBasicFilter(TokenStream input)
{
this.input = input;
discardMask = new BitSet();
}
public virtual void hide(BitSet mask)
{
hideMask = mask;
}
public TokenStreamHiddenTokenFilter(TokenStream input) : base(input)
{
hideMask = new BitSet();
}
// Expected BitSet / not BitSet
public MismatchedTokenException(string[] tokenNames_, IToken token_, BitSet set_, bool matchNot, string fileName_) :
base("Mismatched Token", fileName_, token_.getLine(), token_.getColumn())
{
tokenNames = tokenNames_;
token = token_;
tokenText = token_.getText();
mismatchType = matchNot ? TokenTypeEnum.NotSetType : TokenTypeEnum.SetType;
bset = set_;
}
public static BitSet of(int el)
{
BitSet s = new BitSet(el + 1);
s.add(el);
return s;
}
public virtual void discard(BitSet mask)
{
discardMask = mask;
}
/*return this | a in a new set */
public virtual BitSet or(BitSet a)
{
BitSet s = (BitSet) this.Clone();
s.orInPlace(a);
return s;
}
public TokenStreamHiddenTokenFilter(TokenStream input) : base(input)
{
hideMask = new BitSet();
}
public virtual void orInPlace(BitSet a)
{
// If this is smaller than a, grow this first
if (a.dataBits.Length > dataBits.Length)
{
setSize((int) (a.dataBits.Length));
}
int min = (int) (System.Math.Min(dataBits.Length, a.dataBits.Length));
for (int i = min - 1; i >= 0; i--)
{
dataBits[i] |= a.dataBits[i];
}
}
public virtual void match(BitSet b)
{
if (!b.member(cached_LA1))
{
throw new MismatchedCharException(cached_LA1, b, false, this);
}
consume();
}
/*Is this contained within a? */
public virtual bool subset(BitSet a)
{
if (a == null) //(a == null || !(a is BitSet))
return false;
return this.and(a).Equals(this);
}
/*Make sure current lookahead symbol matches the given set
* Throw an exception upon mismatch, which is catch by either the
* error handler or by the syntactic predicate.
*/
public virtual void match(AST t, BitSet b)
{
if (t == null || t == ASTNULL || !b.member(t.Type))
{
throw new MismatchedTokenException(getTokenNames(), t, b, false);
}
}
/*Subtract the elements of 'a' from 'this' in-place.
* Basically, just turn off all bits of 'this' that are in 'a'.
*/
public virtual void subtractInPlace(BitSet a)
{
if (a == null)
return ;
// for all words of 'a', turn off corresponding bits of 'this'
for (int i = 0; i < dataBits.Length && i < a.dataBits.Length; i++)
{
dataBits[i] &= ~ a.dataBits[i];
}
}
/*Consume tokens until one matches the given token set */
public virtual void consumeUntil(BitSet bset)
{
while (LA(1) != Token.EOF_TYPE && !bset.member(LA(1)))
{
consume();
}
}
public virtual BitSet and(BitSet a)
{
BitSet s = (BitSet) this.Clone();
s.andInPlace(a);
return s;
}
public virtual void recover(RecognitionException ex, BitSet tokenSet)
{
consume();
consumeUntil(tokenSet);
}
public virtual void andInPlace(BitSet a)
{
int min = (int) (Math.Min(dataBits.Length, a.dataBits.Length));
for (int i = min - 1; i >= 0; i--)
{
dataBits[i] &= a.dataBits[i];
}
// clear all bits in this not present in a (if this bigger than a).
for (int i = min; i < dataBits.Length; i++)
{
dataBits[i] = 0;
}
}
