Class: PrimitiveNode

• Inheritance
• Description
• Class protocol
  • instance creation
• Instance protocol
  • accessing
  • code generation
  • enumerating
  • evaluation
  • queries
  • visiting

Inheritance:

   Object
   |
   +--ParseNode
      |
      +--StatementNode
         |
         +--PrimitiveNode

Package:

stx:libcomp

Category:

System-Compiler-Support

Version:

rev: 1.27 date: 2023/06/04 09:30:03

user: cg

file: PrimitiveNode.st directory: libcomp

module: stx stc-classLibrary: libcomp

Description:

node for parse-trees, representing primitive code
This is a helper class for the compiler.

Primitives are (currently) not always supported by the incremental compiler 
- if you want a primitive, you must use the stc-compiler and 
link a new smalltalk.

On system which support dynamic object loading, methods with primitives are passed 
to stc and the resulting binary is loaded into the image 
(also a limited set of numeric primitives could be implemented for more ST-80 
 compatibility - if there is a need).

To allow autoloaded/filedIn code to be written for best performance, an optional
primitive directive (in the primitives first lines comment) may specify an
optional primitive; these are compiled on systems which do support binary code
loading, and ignored completely on others.

copyright
COPYRIGHT (c) 1990 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.

Class protocol:

 code: aString

 primitiveNumber: anInteger

Instance protocol:

 code: aString

set the primitives code - check for the 'OPTIONAL' directive

 primitiveNumber: anInteger

 codeForSideEffectOn: aStream inBlock: b for: aCompiler

catch code generation

 codeOn: aStream inBlock: b for: aCompiler

catch code generation

 nodeDo: anEnumerator

helper for parse tree walking

 evaluateExpressionIn: anEnvironment

catch evaluation

 evaluateIn: anEnvironment

catch evaluation

 containsReturn

JV@2011-07-19: I'm not quite sure that this is OK..."

 isOptional

 isSimpleConstant

 isSimpleExpression

 isSimpleVariable

 acceptVisitor: aVisitor

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