Package org.eclipse.xtend.core.parser

Class XtendPartialParsingHelper

java.lang.Object

org.eclipse.xtext.xbase.parser.TokenSequencePreservingPartialParsingHelper

org.eclipse.xtend.core.parser.XtendPartialParsingHelper

All Implemented Interfaces:

org.eclipse.xtext.parser.antlr.IPartialParsingHelper

public class XtendPartialParsingHelper
extends org.eclipse.xtext.xbase.parser.TokenSequencePreservingPartialParsingHelper

A customized partial parsing helper that falls eagerly back to a full parse as soon as the new token sequence would be different from the old one. This approach allows to benefit from partial parsing whenever a token content is edited (e.g. the content of a comment, identifier or string literal) while not producing bogus lookahead information. Mostly copied and refactored from the default implementation.

Constructor Summary

Constructors

Constructor	Description
XtendPartialParsingHelper()

Method Summary

Modifier and Type	Method	Description
protected boolean	isSameTokenSequence(java.lang.String originalText, java.lang.String newText, int expectedLength)

Methods inherited from class org.eclipse.xtext.xbase.parser.TokenSequencePreservingPartialParsingHelper

calculatePartialParsingPointers, doParseRegion, filterInvalidRootNodes, fullyReparse, getAllParents, getLeftNode, getOldSemanticElement, getReplacedNode, getRightNode, insertChangeIntoReplaceRegion, internalFindValidReplaceRootNodeForChangeRegion, isActionNode, isBrokenPreviousState, isInvalidRootNode, isSameTokenSequence, reparse, replaceOldSemanticElement, unloadSemanticObject

Methods inherited from class java.lang.Object

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

Constructor Detail

XtendPartialParsingHelper

public XtendPartialParsingHelper()

Method Detail

isSameTokenSequence

protected boolean isSameTokenSequence(java.lang.String originalText,
                                      java.lang.String newText,
                                      int expectedLength)

Overrides:

isSameTokenSequence in class org.eclipse.xtext.xbase.parser.TokenSequencePreservingPartialParsingHelper