Package com.io7m.cedarbridge.exprsrc.internal

Class CBExpressionSource

java.lang.Object

com.io7m.cedarbridge.exprsrc.internal.CBExpressionSource

All Implemented Interfaces:

CBExpressionLineLogType, CBExpressionSourceType, Closeable, AutoCloseable

public final class CBExpressionSource
extends Object
implements CBExpressionSourceType

The default expression source.

Constructor Summary

Constructors

Constructor	Description
CBExpressionSource(CBRecordingUnicodeCharacterReader inReader, URI inUri, InputStream inStream, com.io7m.jsx.api.parser.JSXParserType inParser)	The default expression source.

Method Summary

Modifier and Type	Method	Description
void	close()
Optional<String>	contextualize(com.io7m.jlexing.core.LexicalPosition<?> position)	Show a contextually highlighted line for the given lexical position.
Optional<com.io7m.jsx.SExpressionType>	parseExpressionOrEOF()
Optional<String>	showLineFor(int lineNumber)	Show the previously-encountered line with the given line number.
URI	source()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

CBExpressionSource

public CBExpressionSource(CBRecordingUnicodeCharacterReader inReader,
 URI inUri,
 InputStream inStream,
 com.io7m.jsx.api.parser.JSXParserType inParser)

The default expression source.

Parameters:

inReader - A character reader

inUri - The source URI

inStream - The source stream

inParser - The source parser

Method Details

source

public URI source()

Specified by:

source in interface CBExpressionSourceType

Returns:

The URI of the source

parseExpressionOrEOF

public Optional<com.io7m.jsx.SExpressionType> parseExpressionOrEOF()
                                                            throws com.io7m.jsx.api.parser.JSXParserException,
IOException

Specified by:

parseExpressionOrEOF in interface CBExpressionSourceType

Returns:

The next expression, or Optional.empty() if EOF is reached

Throws:

com.io7m.jsx.api.parser.JSXParserException - On parse errors

IOException - On I/O errors

showLineFor

public Optional<String> showLineFor(int lineNumber)

Description copied from interface: CBExpressionLineLogType

Show the previously-encountered line with the given line number.

Specified by:

showLineFor in interface CBExpressionLineLogType

Parameters:

lineNumber - The line number

Returns:

The line, if one has been encountered

contextualize

public Optional<String> contextualize(com.io7m.jlexing.core.LexicalPosition<?> position)

Description copied from interface: CBExpressionLineLogType

Show a contextually highlighted line for the given lexical position.

Specified by:

contextualize in interface CBExpressionLineLogType

Parameters:

position - The position

Returns:

The highlighted line, if one has been encountered

close

public void close()
           throws IOException

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Throws:

IOException