Class: Chunk (private in Diff3

• Inheritance
• Description
• Related information
• Class protocol
  • as yet unclassified
• Instance protocol
  • accessing
  • as yet unclassified
  • comparing
  • testing

Inheritance:

   Object
   |
   +--Diff3::Chunk

Package:

stx:libtool

Category:

Collections-Sequenceable-Diff

Owner:

Diff3

Author:

Tony Garnock-Jones <tonyg@lshift.com>

Description:

A Diff3Chunk is a subclass of DiffChunk that also knows which side of a three-way merge it represents.

Instance Variables
    side:           <Symbol> One of #left, #original or #right


[instance variables:]

[class variables:]

Related information:

Class protocol:

 negativeSize: s

Returns a pseudo-chunk with *negative* length, useful as a kind of zero for destructiveMergeWith: operations intended to build up coverage over some set of chunks.

 offset: o length: l

 side: aSelector chunk: aChunk

Instance protocol:

 correctForSkewFrom: smallerChunk to: biggerChunk

Given a biggerChunk that definitely contains smallerChunk but might have an extra head or tail, updates the receiver to include such an extra head or tail.

 destructiveMergeWith: aChunk

 lastIndex

Returns the rightmost index contained in my range. (Offset is the leftmost index.) If my length is zero, will return an index lower than my offset.

 length

 length: anObject

 offset

 offset: anObject

 side

 side: anObject

 = otherChunk

(comment from inherited method)
return true if the receiver and the arg have the same structure.
Notice:
This method is partially open coded (inlined) by the compiler(s)
identical objects are always considered equal.
redefining it may not work as expected.

 accept: aVisitor

 extractFrom: aCollection

Extracts a subcollection from aCollection corresponding to my offset and length.

 extractFrom: aCollection offset: lineOffset

Given a text and lineOffset withing a chunk, return the line

 extractFromDiff: diff

 extractResolution

 printOn: aStream

(comment from inherited method)
append a user printed representation of the receiver to aStream.
The format is suitable for a human - not meant to be read back.

The default here is to output the receiver's class name.
BUT: this method is heavily redefined for objects which
can print prettier.

 < aDiffChunk

Used to sort changed chunks during three-way merge; see Diff3

 isChunk

 isConflict