* *>* > It's different because evaluated only once, either at method compilation *>* or at first execution (lazy initialization). * { localVar1. instVar1. 'asd'->123 } is great.. and would suffice for many use cases, it does evaluate at method execution. But bound execution at later point that BlockClosure gives is interesting.
What you seek is something like - Dolphin ##( ) construction - or VW [] once trick from Travis Grigg based on using the #become: power (search once upon a time or something like that on his blog) I was thinking of this very subject recently and have a draft proposition not really ready (must think of it twice).
Other stuff I will eagerly wait for.. Well, I am not aware of Dolphin syntax as much, but in VA it is for evaluate once at method compilation. VW I have not known any ecquivalent... so Travis's is news ... To the current point: {...} is good.. and usable.. but this also gives a possibility to clean up: BlockClosure>>asArray | stmts anArray | stmts := self decompile statements. anArray := Array new: stmts size. stmts doWithIndex: [ :eaNode :indx| anArray at: indx put: (Compiler evaluate: eaNode ). ]. ^anArray or something more cleaner.. would allow late bound executions... and hold for all other use cases.. -Skrish On Thu, Jul 22, 2010 at 5:39 PM, Sudhakar Krishnamachari < skrishnamachari@gmail.com> wrote:
Would this be of interest in general... I have always wanted a more capable literal array than what we have now..
#( 123 23 'das' ) whynot: #( 'ac'->23 2->'casd' myVar1) ... evaluates to a collection..
so I just tried this out with a BlockClosure:
asArray
| stmts anArray |
stmts := self decompile statements. anArray := Array new: stmts size. stmts doWithIndex: [ :eaNode :indx| | start end value| start := (eaNode asString indexOf: ${)+1. end := (eaNode asString lastIndexOf: $})-1. value := Compiler evaluate: (eaNode asString copyFrom: start to: end) for: self receiver logged: false. anArray at: indx put: value]. ^anArray
So we could do: ['abc'->123. 'def'->456. 'efg'->789. 'hij'->123. 'klm'->456.] asArray. [self checkThisUsingKeywordMethod: 'abc' with:'efg'. localVar1. instanceVar1 ] asArray
to yield arrays.. not neat, I would much rather prefer the literals do their job their way... but works.. for the narrow set I have tried so far..
Any comments.. -Skrish