Smalltalk/X Webserver

Documentation of class 'RBProgramNode':

Class: RBProgramNode

Inheritance
Description
Class protocol
- accessing
- initialization
Instance protocol

Inheritance:

   Object
   |
   +--RBProgramNode
      |
      +--RBMethodNode
      |
      +--RBSequenceNode
      |
      +--RBStatementNode

Package:: stx:goodies/refactoryBrowser/parser

Category:: Refactory-AST-Nodes

Version:: rev: 1.39 date: 2009/10/16 09:55:44; user: cg; file: RBProgramNode.st directory: goodies/refactoryBrowser/parser; module: stx stc-classLibrary: parser

Description:

BRProgramNode is an abstract class that represents an abstract syntax tree node in a Smalltalk program.

Subclasses must implement the following messages:
	accessing
		start
		stop
	visitor
		acceptVisitor:

The #start and #stop methods are used to find the source that corresponds to this node. "source copyFrom: self start to: self stop" should return the source for this node.

The #acceptVisitor: method is used by BRProgramNodeVisitors (the visitor pattern). This will also require updating all the BRProgramNodeVisitors so that they know of the new node.

Subclasses might also want to redefine match:inContext: and copyInContext: to do parse tree searching and replacing.

Subclasses that contain other nodes should override equalTo:withMapping: to compare nodes while ignoring renaming temporary variables, and children that returns a collection of our children nodes.

Instance Variables:
	comments        <Collection of: Interval>       the intervals in the source that have comments for this node
	parent  <BRProgramNode> the node we're contained in

Class protocol:

accessing

formatterClass
formatterClass: aClass
optimizedSelectors

initialization

initialize

Instance protocol:

accessing

asReturn: Change the current node to a return node.
children
comments
comments: aCollection
commentsAfter
commentsAfter: aCollection
commentsBefore
commentsBefore: aCollection: commentsBefore notEmptyOrNil ifTrue:[self halt:'oops - loosing comments'].
formattedCode
formatterClass
lineNumber
lineNumber: something
originalCode
parent
parent: anObject
precedence
setCommentsAfter: aCollection
source
sourceInterval
start: ** This method raises an error - it must be redefined in concrete classes **
stop: ** This method raises an error - it must be redefined in concrete classes **

comparing

equalTo: aNode exceptForVariables: variableNameCollection
equalTo: aNode withMapping: aDictionary

copying

copy: This is redefined for IBM Smalltalk which doesn't have postCopy.
copyCommentsFrom: aNode: Add all comments from aNode to us. If we already have the comment, then don't add it.
postCopy