compiler/PPCForwardNode.st
author Jan Vrany <jan.vrany@fit.cvut.cz>
Mon, 27 Jul 2015 16:28:48 +0100
changeset 506 e5d63143737f
parent 452 9f4558b3be66
child 515 b5316ef15274
permissions -rw-r--r--
Added static analysis of blocks when inlining. Allow inlining only when block is functional ...i.e., does not access any shared state (in instance or class variables). If the block does a self-send, the sent method has to be (transitively) functional too. To allow for self-sends in action blocks, copy (transitively) self-sent methods to target parser. This is safe as these self-sent methods are guarnateed to be functional.

"{ Package: 'stx:goodies/petitparser/compiler' }"

"{ NameSpace: Smalltalk }"

PPCDelegateNode subclass:#PPCForwardNode
	instanceVariableNames:''
	classVariableNames:''
	poolDictionaries:''
	category:'PetitCompiler-Nodes'
!

!PPCForwardNode methodsFor:'accessing'!

prefix
    ^ #fw
! !

!PPCForwardNode methodsFor:'analysis'!

check
    ^ (self name notNil and: [ 
        child name = self name and: [
        child suffix = self suffix
    ]]) ifTrue: [ 'referring to itself!!' ]
! !

!PPCForwardNode methodsFor:'visiting'!

accept: visitor
    ^ visitor visitForwardNode: self
! !