Loyc.Syntax.EmptySourceFile Class Reference

A dummy implementation of ISourceFile that has only a filename, no source text. Used as the source file of synthetic syntax nodes. More...

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Source file:

• /Core/Loyc.Syntax/SourceFiles/EmptySourceFile.cs

Inheritance diagram for Loyc.Syntax.EmptySourceFile:

Remarks

A dummy implementation of ISourceFile that has only a filename, no source text. Used as the source file of synthetic syntax nodes.

Public static fields
static readonly EmptySourceFile	Default = new EmptySourceFile("")
static readonly EmptySourceFile	Unknown = new EmptySourceFile("Unknown")

Properties
string	FileName [get]
ICharSource	Text [get]
Properties inherited from Loyc.Syntax.ISourceFile
ICharSource	Text [get]
string	FileName [get]

Public Member Functions
	EmptySourceFile (string fileName)
SourcePos	IndexToLine (int index)
	Returns the position in a source file of the specified index. More...
int	LineToIndex (int lineNo)
	Returns the index in a source file of the beginning of the specified line, where the first line is number 1, not 0. More...
int	LineToIndex (LineAndCol pos)

Member Function Documentation

SourcePos Loyc.Syntax.EmptySourceFile.IndexToLine ( int  index )

inline

Returns the position in a source file of the specified index.

If index is negative, this should return a SourcePos where Line and PosInLine are zero (signifying an unknown location). If index is beyond the end of the file, this should retun the final position in the file.

Implements Loyc.Syntax.IIndexToLine.

int Loyc.Syntax.EmptySourceFile.LineToIndex ( int  lineNo )

inline

Returns the index in a source file of the beginning of the specified line, where the first line is number 1, not 0.

If lineNo is zero, this method should return -1 (signifying an unknown location). If lineNo is larger than the largest line number, this method should return the index of end-of-file.

Implements Loyc.Syntax.IIndexPositionMapper.