Hi Sean, You *need* an outer context. See Context>>cleanCopy, which Fuel uses to serialize blocks. 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