Class: CascadeNode

• Inheritance
• Description
• Instance protocol
  • *VMMaker-C translation
  • code generation
  • enumerating
  • evaluation
  • printing & storing
  • testing
  • visiting

Inheritance:

   Object
   |
   +--ParseNode
      |
      +--MessageNode
         |
         +--CascadeNode

Package:

stx:libcomp

Category:

System-Compiler-Support

Version:

rev: 1.37 date: 2021/01/20 10:29:24

user: cg

file: CascadeNode.st directory: libcomp

module: stx stc-classLibrary: libcomp

Description:

node for parse-trees, representing cascade message sends
This is a helper class for the compiler.

copyright
COPYRIGHT (c) 1989 by Claus Gittinger
             All Rights Reserved

This software is furnished under a license and may be used
only in accordance with the terms of that license and with the
inclusion of the above copyright notice.   This software may not
be provided or otherwise made available to, or used by, any
other person.  No title to or ownership of the software is
hereby transferred.

Instance protocol:

 asTranslatorNodeIn: aTMethod

make a CCodeGenerator equivalent of me

 realReceiver

return the real receiver
(sigh; ST/X encodes things differently)

 codeForCascadeOn: aStream inBlock: b for: aCompiler

the old code could lead to a recursion error with
long cascades;
the new code does not.

Usage example(s):

receiver codeForCascadeOn:aStream inBlock:b for:aCompiler.

 codeOn: aStream inBlock: b valueNeeded: valueNeeded for: aCompiler

(comment from inherited method)
most work is in checking for inlinable code here.

 messages

helper for parse tree walking

 nodeDo: anEnumerator

helper for parse tree walking

 evaluateForCascadeIn: anEnvironment

new code: avoids recursion error for long cascades

Usage example(s):

t := receiver evaluateForCascadeIn:anEnvironment.

 evaluateIn: anEnvironment

t perform:selector. ^ t

 printMessagePartOn: aStream indent: i

 printOn: aStream indent: i

new code:

Usage example(s):

receiver printOn:aStream indent:i.

 isCascade

 acceptVisitor: aVisitor

Double dispatch back to the visitor, passing my type encoded in
the selector (visitor pattern)