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Loyc.Syntax.BaseParserForList< Token, MatchType > Class Template Reference

An base class designed for parsers that use LLLPG (Loyc LL(k) Parser Generator) and receive tokens from any IEnumerator{Token}. More...


Source file:
Inheritance diagram for Loyc.Syntax.BaseParserForList< Token, MatchType >:
Loyc.Syntax.BaseParserForList< Token, MatchType, List > Loyc.Syntax.BaseParser< Token, MatchType > Loyc.Syntax.Les.LesParser

Remarks

An base class designed for parsers that use LLLPG (Loyc LL(k) Parser Generator) and receive tokens from any IEnumerator{Token}.

This base class for LLLPG parsers reads tokens from IList{Token}, but you can also pass an IEnumerable{Token} or IEnumerator{Token} to the constructor and it will convert it to a list, lazily, using BufferedSequence{T}.

Type Constraints
Token :ISimpleToken<MatchType> 
MatchType :IEquatable<MatchType> 

Protected Member Functions

 BaseParserForList (IList< Token > list, Token eofToken, ISourceFile file, int startIndex=0)
 <inheridoc>
 
 BaseParserForList (IListAndListSource< Token > list, Token eofToken, ISourceFile file, int startIndex=0)
 
 BaseParserForList (IListSource< Token > list, Token eofToken, ISourceFile file, int startIndex=0)
 
 BaseParserForList (IEnumerable< Token > list, Token eofToken, ISourceFile file, int startIndex=0)
 <inheridoc>
 
 BaseParserForList (IEnumerator< Token > list, Token eofToken, ISourceFile file, int startIndex=0)
 <inheridoc>
 
- Protected Member Functions inherited from Loyc.Syntax.BaseParserForList< Token, MatchType, List >
 BaseParserForList (List list, Token eofToken, ISourceFile file, int startIndex=0)
 Initializes this object to begin parsing the specified tokens. More...
 
virtual void Reset (List list, Token eofToken, ISourceFile file, int startIndex=0)
 Reinitializes the object. This method is called by the constructor. More...
 
void Reset ()
 
sealed override MatchType EofInt ()
 Returns the value used for EOF (normally 0) More...
 
sealed override Token LT (int i)
 Returns the token at lookahead i (e.g. Source[InputPosition + i] if the tokens come from a list called Source) More...
 
MatchType LA (int i)
 
abstract override string ToString (MatchType tokenType)
 Returns a string representation of the specified token type. These strings are used in error messages. More...
 
bool Down (List children)
 Switches to parsing the specified token list at position zero (typically the value of Loyc.Syntax.Lexing.Token.Children in a token tree produced by TokensToTree.) The original token list and the original InputPosition are placed on a stack, so you can restore the old list by calling Up(). More...
 
void Up ()
 Returns to the old token list saved by Down. More...
 
Up< T > (T value)
 Calls Up() and returns value. More...
 
- Protected Member Functions inherited from Loyc.Syntax.BaseParser< Token, MatchType >
 BaseParser (ISourceFile file=null, int startIndex=0)
 
virtual int LaIndexToCharIndex (int lookaheadIndex)
 Converts a lookahead token index to a character index (used for error reporting). More...
 
virtual object LaIndexToSourcePos (int lookaheadIndex)
 Converts a lookahead token index to a SourcePos object using LaIndexToCharIndex and SourceFile. More...
 
virtual void Error (int lookaheadIndex, string message)
 Records an error or throws an exception. More...
 
virtual void Error (int lookaheadIndex, string format, params object[] args)
 
void Skip ()
 
Token MatchAny ()
 
Token Match (HashSet< MatchType > set, bool inverted=false)
 
Token Match (MatchType a)
 
Token Match (MatchType a, MatchType b)
 
Token Match (MatchType a, MatchType b, MatchType c)
 
Token Match (MatchType a, MatchType b, MatchType c, MatchType d)
 
Token MatchExcept ()
 
Token MatchExcept (MatchType a)
 
Token MatchExcept (MatchType a, MatchType b)
 
Token MatchExcept (MatchType a, MatchType b, MatchType c)
 
Token MatchExcept (MatchType a, MatchType b, MatchType c, MatchType d)
 
Token MatchExcept (HashSet< MatchType > set)
 
bool TryMatch (HashSet< MatchType > set, bool inverted=false)
 
bool TryMatch (MatchType a)
 
bool TryMatch (MatchType a, MatchType b)
 
bool TryMatch (MatchType a, MatchType b, MatchType c)
 
bool TryMatch (MatchType a, MatchType b, MatchType c, MatchType d)
 
bool TryMatchExcept ()
 
bool TryMatchExcept (MatchType a)
 
bool TryMatchExcept (MatchType a, MatchType b)
 
bool TryMatchExcept (MatchType a, MatchType b, MatchType c)
 
bool TryMatchExcept (MatchType a, MatchType b, MatchType c, MatchType d)
 
bool TryMatchExcept (HashSet< MatchType > set)
 
void Error (bool inverted, params MatchType[] expected)
 
virtual void Error (bool inverted, IEnumerable< MatchType > expected)
 
virtual string ToString (bool inverted, IEnumerable< MatchType > expected)
 
virtual void Check (bool expectation, string expectedDescr="")
 

Additional Inherited Members

- Public static fields inherited from Loyc.Syntax.BaseParser< Token, MatchType >
static readonly IMessageSink FormatExceptionErrorSink
 Throws FormatException when it receives an error. Non-errors are sent to MessageSink.Current. More...
 
- Properties inherited from Loyc.Syntax.BaseParserForList< Token, MatchType, List >
List TokenList [get]
 The IList{Token} that was provided to the constructor, if any. More...
 
sealed override MatchType LA0Int [get]
 
MatchType LA0 [get]
 
new int InputPosition [get, set]
 
- Properties inherited from Loyc.Syntax.BaseParser< Token, MatchType >
IMessageSink ErrorSink [get, set]
 Gets or sets the object to which error messages are sent. The default object is FormatExceptionErrorSink, which throws FormatException if an error occurs. More...
 
ISourceFile SourceFile [get]
 The ISourceFile object that was provided to the constructor, if any. More...
 
Token LT0 [get]
 Next token to parse (cached; is set to LT(0) whenever InputPosition is changed). More...
 
int InputPosition [get, set]
 Current position of the next token to be parsed. More...
 
abstract MatchType LA0Int [get]
 Returns the token type of _lt0 (normally _lt0.TypeInt) More...
 
- Static Protected Member Functions inherited from Loyc.Syntax.BaseParser< Token, MatchType >
static HashSet< MatchType > NewSet (params MatchType[] items)
 
- Protected fields inherited from Loyc.Syntax.BaseParserForList< Token, MatchType, List >
Token EofToken
 
List _tokenList
 
- Protected fields inherited from Loyc.Syntax.BaseParser< Token, MatchType >
ISourceFile _sourceFile
 
Token _lt0
 
int _inputPosition
 
MatchType EOF