Yes, I want that in Squeak too !
Le ven. 1 mai 2020 à 18:58, Eliot Miranda eliot.miranda@gmail.com a écrit :
you might want to adapt this change set into a package, to rename BlockClosure's startups inst var to startpcOrMethod to clear up confusion.
On Fri, May 1, 2020 at 9:49 AM Eliot Miranda eliot.miranda@gmail.com wrote:
Hi Max,
On Thu, Apr 30, 2020 at 11:51 PM Max Leske maxleske@gmail.com wrote:
Hi Sean,
You *need* an outer context. See Context>>cleanCopy, which Fuel uses to serialize blocks.
One does *not* need an outer context. An outer context of nil should be fine, provided that the block never attempts an up-arrow return.
| blockMethod | blockMethod := [:a :b| a < b] method. (FullBlockClosure receiver: nil outerContext: nil method: blockMethod copiedValues: nil) value: 1 value: 2
So one needs to use FullBlockClosure class>>receiver:outerContext:method:copiedValues: and one can supply nil for the outerContext provided that the block does not do an up-arrow return.
Cheers, Max
On 1 May 2020, at 3:23, Sean P. DeNigris wrote:
What am I not understanding about FullBlockClosure?
I have a clean block that I'd like to turn into a FullBlockClosure so that I can serialize it without dragging (unneeded methods) into my object graph. However, documentation and in-image example usages seem severely limited. Here was one experiment that ended with a primitive failure. It seems like a receiver is needed and it can't be a dummy value (see commented "receiver: 1"). But what would the receiver be in the absence of an outer context?!
aBlockClosure := [ :a :b | 1 + a + b ]. fbc := (FullBlockClosure outerContext: nil startpc: aBlockClosure startpc numArgs: aBlockClosure argumentCount copiedValues: Array new) "receiver: 1; yourself".
fbc value: 2 value: 3. "PrimitiveFailed: primitive #value:value: in FullBlockClosure failed"
Cheers, Sean -- Sent from: http://forum.world.st/Pharo-Smalltalk-Developers-f1294837.html
-- _,,,^..^,,,_ best, Eliot
-- _,,,^..^,,,_ best, Eliot
On Fri, May 1, 2020 at 10:02 AM Nicolas Cellier < nicolas.cellier.aka.nice@gmail.com> wrote:
Yes, I want that in Squeak too !
I just committed it ;-)
Le ven. 1 mai 2020 à 18:58, Eliot Miranda eliot.miranda@gmail.com a écrit :
you might want to adapt this change set into a package, to rename BlockClosure's startups inst var to startpcOrMethod to clear up confusion.
On Fri, May 1, 2020 at 9:49 AM Eliot Miranda eliot.miranda@gmail.com wrote:
Hi Max,
On Thu, Apr 30, 2020 at 11:51 PM Max Leske maxleske@gmail.com wrote:
Hi Sean,
You *need* an outer context. See Context>>cleanCopy, which Fuel uses to serialize blocks.
One does *not* need an outer context. An outer context of nil should be fine, provided that the block never attempts an up-arrow return.
| blockMethod | blockMethod := [:a :b| a < b] method. (FullBlockClosure receiver: nil outerContext: nil method: blockMethod copiedValues: nil) value: 1 value: 2
So one needs to use FullBlockClosure class>>receiver:outerContext:method:copiedValues: and one can supply nil for the outerContext provided that the block does not do an up-arrow return.
Cheers, Max
On 1 May 2020, at 3:23, Sean P. DeNigris wrote:
What am I not understanding about FullBlockClosure?
I have a clean block that I'd like to turn into a FullBlockClosure so that I can serialize it without dragging (unneeded methods) into my object graph. However, documentation and in-image example usages seem severely limited. Here was one experiment that ended with a primitive failure. It seems like a receiver is needed and it can't be a dummy value (see commented "receiver: 1"). But what would the receiver be in the absence of an outer context?!
aBlockClosure := [ :a :b | 1 + a + b ]. fbc := (FullBlockClosure outerContext: nil startpc: aBlockClosure startpc numArgs: aBlockClosure argumentCount copiedValues: Array new) "receiver: 1; yourself".
fbc value: 2 value: 3. "PrimitiveFailed: primitive #value:value: in FullBlockClosure failed"
Cheers, Sean -- Sent from: http://forum.world.st/Pharo-Smalltalk-Developers-f1294837.html
-- _,,,^..^,,,_ best, Eliot
-- _,,,^..^,,,_ best, Eliot
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