Hi Max, On Thu, Apr 30, 2020 at 11:51 PM Max Leske <maxle...@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
