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Loyc.Syntax.Les.Les3Parser Class Reference

Source files:
Inheritance diagram for Loyc.Syntax.Les.Les3Parser:
Loyc.Syntax.BaseParserForList< Token, MatchType > Loyc.Syntax.BaseParserForList< Token, MatchType, List > Loyc.Syntax.BaseParser< Token, MatchType >

Properties

new IMessageSink ErrorSink [get, set]
 
- Properties inherited from Loyc.Syntax.BaseParserForList< Token, MatchType, List >
Token EofToken [get]
 
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 LogExceptionErrorSink, which throws an exception 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...
 

Public Member Functions

 Les3Parser (IList< Token > list, ISourceFile file, IMessageSink sink, IParsingOptions options, int startIndex=0)
 
void Reset (IList< Token > list, ISourceFile file, IParsingOptions options, int startIndex=0)
 
IEnumerable< LNodeStart (Holder< TokenType > separator)
 Top-level rule: expects a sequence of statements followed by EOF More...
 
LNodeList ExprList (string listContextName, LNode?firstItem=null, bool presumeCommaSeparated=true)
 
LNodeList ExprList (string listContextName, ref TokenType separatorType, LNode?firstItem=null, bool presumeCommaSeparated=true, bool isBracedBlock=false)
 
IEnumerable< LNodeExprListLazy (Holder< TokenType > separatorType)
 

Protected Member Functions

override void Reset (IList< Token > list, Func< Token, Token > getEofToken, int eof, ISourceFile file, int startIndex=0)
 
override string ToString (int type)
 
virtual LNode MarkSpecial (LNode n)
 
virtual LNode MarkCall (LNode n)
 
LNode MissingExpr (Token tok, string?error=null, bool afterToken=false)
 
Precedence PrefixPrecedenceOf (Token t)
 
LNode CompactExpression (ref TokenType separatorType)
 
LNode NextExpression (ref TokenType separatorType, out Token trailingSeparator, bool isBracedBlock)
 
LNode TopExpr (bool compactMode)
 
- Protected Member Functions inherited from Loyc.Syntax.BaseParserForList< Token, MatchType >
 BaseParserForList (IList< Token > list, Token getEofToken, ISourceFile file, int startIndex=0)
 <inheridoc>
 
 BaseParserForList (IList< Token > list, Func< Token, Token > getEofToken, MatchType eof, 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 getEofToken, ISourceFile file, int startIndex=0)
 <inheridoc>
 
 BaseParserForList (IEnumerable< Token > list, Func< Token, Token > getEofToken, MatchType eof, ISourceFile file, int startIndex=0)
 <inheridoc>
 
 BaseParserForList (IEnumerator< Token > list, Token getEofToken, ISourceFile file, int startIndex=0)
 <inheridoc>
 
- Protected Member Functions inherited from Loyc.Syntax.BaseParserForList< Token, MatchType, List >
 BaseParserForList (List list, Func< Token, Token > getEofToken, MatchType eof, ISourceFile file, int startIndex=0)
 Initializes this object to begin parsing the specified tokens. More...
 
 BaseParserForList (List list, Token getEofToken, ISourceFile file, int startIndex=0)
 
virtual void Reset (List list, Token eofToken, ISourceFile file, int startIndex=0)
 Reinitializes the object. This method is called by the constructor. More...
 
virtual void Reset (List list, Func< Token, Token > getEofToken, MatchType eof, 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)
 Initializes the base class. More...
 
virtual int LaIndexToCharIndex (int lookaheadIndex)
 Converts a lookahead token index to a character index (used for error reporting). More...
 
virtual object LaIndexToMsgContext (int lookaheadIndex)
 Converts a lookahead token index to a SourceRange (or to a string if SourceFile was initialized to null.) 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 MatchError (bool inverted, params MatchType[] expected)
 
virtual void MatchError (bool inverted, IEnumerable< MatchType > expected)
 Handles an error that occurs during Match() or MatchExcept() More...
 
virtual string ToString (bool inverted, IEnumerable< MatchType > expected)
 
virtual void Check (bool expectation, string expectedDescr="")
 

Protected fields

Les3PrecedenceMap _precMap = Les3PrecedenceMap.Default
 
new const TT EOF = TT.EOF
 
- Protected fields inherited from Loyc.Syntax.BaseParserForList< Token, MatchType, List >
Func< Token, Token_getEofToken
 
List _tokenList
 
- Protected fields inherited from Loyc.Syntax.BaseParser< Token, MatchType >
ISourceFile _sourceFile
 
Token _lt0 = default!
 
int _inputPosition
 
MatchType EOF
 

Additional Inherited Members

- Public static fields inherited from Loyc.Syntax.BaseParser< Token, MatchType >
static readonly IMessageSink LogExceptionErrorSink
 Throws LogException when it receives an error. Non-errors are sent to MessageSink.Default. More...
 
static readonly IMessageSink FormatExceptionErrorSink
 
- Static Protected Member Functions inherited from Loyc.Syntax.BaseParser< Token, MatchType >
static HashSet< MatchType > NewSet (params MatchType[] items)
 

Member Function Documentation

IEnumerable<LNode> Loyc.Syntax.Les.Les3Parser.Start ( Holder< TokenType >  separator)
inline

Top-level rule: expects a sequence of statements followed by EOF

Parameters
separatorIf there are multiple expressions, the Value of this Holder is set to the separator between them: Comma or Semicolon.