THANK YOU!!

On 08.12.2014 08:21, Nicolai Hess wrote:

Hi Trygve,

I slightly changed the code for using the BB1RoleNode class. Instead of modifying the encoder scope table, I put this code in the method for parsing (global-)variables :

Encoder>>encodeVariable: name sourceRange: range ifUnknown: action

Now I can use the current encoder in the BB1RoleNode class and use it to create an Literal entry for the literal set :

BB1RoleNode>>asVariable: roleName contextName: ctxNam withEncoder: enc ... enc encodeLiteral: roleName asSymbol.

And I changed the receiver VariableNode to a LiteralVariableNode, it looks like the sizeCodeForValue: works now.

nicolai

2014-12-07 12:42 GMT+01:00 Trygve Reenskaug <trygver@ifi.uio.no mailto:trygver@ifi.uio.no>:

I'm still trying to port my BabyIDE (my DCI programming
environment) from 3.10.2 to 4.5. The stumbling block is that my
3.10.2 compiler hacks do not work in 4.5.  I posted a request for
help on 2014.11.29. For some reason, that message got garbled and
was hard to understand.

Since then, I have isolated the problem into the attached files
that reconstruct the problem independently of the rest of BabyIDE.
*The files should be filed in in sequence: **/RoleMethods.st,
/**/BB1RoleNode-3.5.st <http://BB1RoleNode-3.5.st>,
/*/*Encoder-#BabyIDE-4.5.st <http://BabyIDE-4.5.st>.*

/ /RoleMethods.st /

is the class with the method that shall be compiled:
|RoleMethods>>transferFrom ||
||        self increase: AMOUNT. ||
||       ^true|
 An extension makes the Encoder understand that |AMOUNT |is a very
special variable and adds it as a |BB1RoleNode |to the parse tree:
/
//BB1RoleNode-3.5.st <http://BB1RoleNode-3.5.st>//
//    Encoder-#BabyIDE-4.5.st <http://BabyIDE-4.5.st>/

|BB1RoleNode |is a new |VariableNode.| It acts a kind of
preprocessor that translates the reference to AMOUNT into a
runtime lookup. This lookup can be seen by decompiling the
CompiledMethod. This is what makes DCI master the runtime.

The 3.10.2 versions work in 3.10.2. The 4.5 versions compile the
source with a couple of old halts. (May be they are warnings
because the BB1RoleNode is a mixture of VariableNode and
MessageNode). The result after proceeds is a CompiledMethod.  It's
faulty and cannot be decompiled. The decompiled code should read

|RoleMethods>>transferFrom||
||       self increase: (BB1ContextStack playerForRole: #AMOUNT)||
||        ^true|

I hope the above is sufficient for you to find my bug(s).

Thanks
--Trygve