Oops, that should be..
| array lookupClosure performClosure |
lookupClosure := [].
lookupClosure := [:cls :selector |
(cls == nil)
ifTrue: [Warning signal: ('method lookup failure: ',
selector)].
cls methodDictionary
at: selector
ifPresent: [:meth | meth]
ifAbsent: [lookupClosure value: cls superclass value:
selector]].
performClosure := [ :receiver :selector :args |
(lookupClosure value: receiver class value: selector)
valueWithReceiver: receiver arguments: args ].
array := { 1 }.
performClosure value: array value: #at:put: value: {1. 'Hello, world'}.
array inspect.
On 10/16/2016 10:03 AM, Charlie Robbats wrote:
and a little block cleanup:
| array lookupClosure performClosure |
lookupClosure := [].
lookupClosure := [:cls :selector |
(cls == nil)
ifTrue: [Warning signal: ('method lookup failure: ',
selector)].
cls methodDictionary
at: selector
ifPresent: [:meth | meth]
ifAbsent: [lookupClosure value: cls superclass value:
selector]].
performClosure := [ :receiver :args |
(lookupClosure value: array class value: #at:put:)
valueWithReceiver: array arguments: args ].
array := { 1 }.
performClosure value: array value: {1. 'Hello, world'}.
array inspect.
Charlie
On 10/16/2016 9:54 AM, Charlie Robbats wrote:
Here's a little change to get your #perform:withArguments: implemented.
| array lookupClosure method |
array := { 1 }.
lookupClosure := [].
lookupClosure := [:cls :selector |
(cls == nil)
ifTrue: [Warning signal: ('method lookup failure: ', selector)].
cls methodDictionary
at: selector
" ifPresent: [:meth | Smalltalk tools browser openOnMethod:
meth]"
ifPresent: [:meth | meth]
ifAbsent: [lookupClosure value: cls superclass value:
selector]].
method := lookupClosure value: Array value: #at:put:.
method valueWithReceiver: array arguments: {1. 'Hello, world'}.
array
On 10/16/2016 9:32 AM, Ben Coman wrote:
On Sun, Oct 16, 2016 at 9:11 PM, Charlie Robbats
<charlie.robb...@gmail.com> wrote:
Here, Dmitry, try this code in playground...maybe helps you understand
| lookupClosure |
lookupClosure := [].
lookupClosure := [:cls :selector |
(cls == nil)
ifTrue: [Warning signal: ('selector lookup failure: ',
selector)].
(cls methodDictionary
at: selector
ifAbsent: [nil])
ifNil: [lookupClosure value: cls superclass value:
selector]
ifNotNil: [:meth | Smalltalk tools browser
openOnMethod: meth]].
lookupClosure value: Array value: #at:put:.
Nice example. Slightly improved...
| lookupClosure |
lookupClosure := [].
lookupClosure := [:cls :selector |
(cls == nil)
ifTrue: [Warning signal: ('selector lookup failure: ',
selector)].
cls methodDictionary
at: selector
ifPresent: [:meth | Smalltalk tools browser openOnMethod:
meth]
ifAbsent: [lookupClosure value: cls superclass value:
selector]].
lookupClosure value: Array value: #at:put:.
cheers -ben
