Igor, great catch. I prefer the attached. Strictly, the index needs to be fixed correctly before the node's size is determined, since it could change (not in this bytecode set, but in some future one it could). On Tue, Mar 20, 2012 at 8:38 AM, Igor Stasenko <siguctua@gmail.com> wrote:
Here the simple method:
at: index <primitive: 60 error: x > ^ x
And its bytecode:
<primitive: 60 error: x> 13 <81 41> storeIntoTemp: 1 15 <11> pushTemp: 1 16 <7C> returnTop
Now, if i add this:
at: index <primitive: 60 error: x > [:foo | 5]. ^ x
I get following bytecode:
<primitive: 60 error: x> 17 <81 42> storeIntoTemp: 2 19 <8F 01 00 02> closureNumCopied: 0 numArgs: 1 bytes 23 to 24 23 <20> pushConstant: 5 24 <7D> blockReturn 25 <87> pop 26 <12> pushTemp: 2 27 <7C> returnTop
so, if we ignore the block closure bytecodes, we have:
<primitive: 60 error: x> 17 <81 42> storeIntoTemp: 2 26 <12> pushTemp: 2 27 <7C> returnTop
The problem is that for method context there are only 2 temps (argument + error code) .. but not 3 (index is zero-based).
The fix should be simple.. in code which calculates the temp index for 'error code' temp.
-- Best regards, Igor Stasenko.
-- best, Eliot