Package com.google.common.css.compiler.ast

Class AbstractGssParser

java.lang.Object

com.google.common.css.compiler.ast.AbstractGssParser

Direct Known Subclasses:

GssParser

public abstract class AbstractGssParser
extends Object

Base parser implementation that delegates management of the underlying JavaCC parser to the subclass. This class does not expose any public methods; subclasses should expose an appropriate interface.

See Also:

• GssParser

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
protected static class	AbstractGssParser.ParseResult

Field Summary

Fields

Modifier and Type	Field	Description
protected static final StringCharStream	EMPTY_CHAR_STREAM

Constructor Summary

Constructors

Constructor	Description
AbstractGssParser()

Method Summary

Modifier and Type	Method	Description
protected abstract GssParserCC	getParser()	Implementations must return an empty GssParserCC object.
protected final AbstractGssParser.ParseResult	parseInternal(List<SourceCode> sources, boolean errorHandling)	Parses a list of GSS sources.

Methods inherited from class java.lang.Object

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

Field Details

EMPTY_CHAR_STREAM

protected static final StringCharStream EMPTY_CHAR_STREAM

Constructor Details

AbstractGssParser

public AbstractGssParser()

Method Details

parseInternal

protected final AbstractGssParser.ParseResult parseInternal(List<SourceCode> sources,
 boolean errorHandling)
                                                     throws GssParserException

Parses a list of GSS sources. Subclasses should use this method to do the actual parsing of SourceCode objects. It will in turn call the subclass's implementation of getParser() as necessary.

Parameters:

sources - a list of GSS SourceCode objects to parse

errorHandling - if error handling should be enabled. If this is false, no GssParserExceptions will be returned in the result.

Returns:

ParseResult the result containing the CssTree and parsing errors

Throws:

GssParserException

getParser

protected abstract GssParserCC getParser()

Implementations must return an empty GssParserCC object. Whether this object is actually new or not isn't important which allows pooling.