World: r3wp
[!REBOL3-OLD1]
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Maxim 14-Jun-2009 [15558x2] | I agree, that is the point of reloading it runtime. |
but right now it crashes at the second load. | |
BrianH 14-Jun-2009 [15560x3] | I could use a minimal header and code block of a module that triggers the assertion crash on reimport by filename (bug#923). |
Justt something to trace and test with. | |
Those assertion crashes are caused in the native code, but we need to narrow down *which* native code. | |
Maxim 14-Jun-2009 [15563x3] | I just uploaded an VERY minimal module and application with 3 imports... the 2 initial are by name and are fine, the third is by file and it crashes. |
is that ok for testing? | |
for (bug#923) | |
BrianH 14-Jun-2009 [15566] | That's what I thought - it's named. You are only supposed to import named modules once per version - subsequent imports are to be by name. New versions are supposed to displace the old, and that might be where the crash is. This will be interesting to trace. |
Maxim 14-Jun-2009 [15567x2] | have fun ;-) |
currently building example scripts for bug#924 | |
BrianH 14-Jun-2009 [15569] | Cool, thanks. |
Maxim 14-Jun-2009 [15570x2] | posted 3 file example. |
re bug#924 in one test, I even had the print word not bount to any context ! | |
BrianH 14-Jun-2009 [15572x2] | OK, I just looked at bug#924 and now get what you want to do. It's not a bug, it's by design. The code block of a module is bound before the block starts executing. You can't define new words in the module's context unless those new words are defined in imported modules or in the code itself at the top level, or anywhere in the code if the module is isolated. |
Sorry, bug#928, not 924. | |
Maxim 14-Jun-2009 [15574] | why is that? this means we can't create new words in a module at run-time? |
BrianH 14-Jun-2009 [15575] | Right. Even if you did you wouldn't be able to use them because the code would already have been bound. |
Maxim 14-Jun-2009 [15576x2] | aren't module contexts auto-expanding? |
but in the script (previously global) context... every word is bound to the script context when loaded, why not providing the same for modules. if it hasn't been set when its encountered then you raise the proper unset error. | |
BrianH 14-Jun-2009 [15578] | Not really. They are (using a hack), but the binding of the code block is done after the imports are processed and before the code block starts executing. Once the code block starts executing the module context has already been defined. REBOL's evaluation and binding rules preclude any automatic rebinding. |
Maxim 14-Jun-2009 [15579x2] | but the word exists in the module before the script is done.... its just not set yet... so it should be bound in the module and the script sets the value, since its running in the context of the module. |
what you are saying is that for modules, we need to start declaring words? not very rebolish. I have to do so in slim to keep words local to the calling context, but I would have tought that modules would do so automatically since they replace the global context. any new word in the root of the spec block of the module should be added to the module's context and set to unset! just like R2's global context does. | |
BrianH 14-Jun-2009 [15581x3] | Um, no, a DOne script is running in its own context if it is a module, or the current context if not. The current context is not the context of the calling code - it exists independently. |
Modules have their own context, but they don';t replace the "global" context. | |
Any set-word in the top-level of the module's code block is added to the module's context before the module code runs, just like an object. If you isolate the module, every word in the module's code block and all nested blocks, parens and paths are added to the module's context. The only words you need to "declare" are the exported words. | |
Maxim 14-Jun-2009 [15584] | ok that makes sense now. |
BrianH 14-Jun-2009 [15585] | The bug#928 should be dismissed, marked as "not a bug", and left there for future reference. Thanks for helping document R3 :) |
Maxim 14-Jun-2009 [15586x4] | but its revealing something deeper... DO is now totally useless. |
cause it can't interact with the context its being called from. | |
well, in the module's perspective anyways. | |
(totally is a strong word... hehe) | |
BrianH 14-Jun-2009 [15590] | Not totally. It is useful in non-module scripts, and useful for scripts done for effect rather than for loading functions. |
Maxim 14-Jun-2009 [15591] | ok let me do a single little test... |
BrianH 14-Jun-2009 [15592] | Also, the IMPORT function is basically a fancy DO. |
Maxim 14-Jun-2009 [15593x3] | oops noticed that I mismatched the bug number in the code examples of bug#928... I'll edit them. |
just like slim's LOAD is a fancy DO ;-) | |
that would be slim's 'OPEN... starting to be late... hehe | |
BrianH 14-Jun-2009 [15596x2] | Of the module bugs you have posted, the one that is still pretty nasty is bug#923. Needs tracing :( |
Good night, be back tomorrow if I can. | |
Maxim 14-Jun-2009 [15598x3] | ok... here is a twist on bug 928... :-) if I add myfunc: none at the top of the module in the supplied example I get this error instead: Evaluating: /D/dev/project/liquid-r3/debug/mymodule-bug924.r ** Script error: print word is not bound to a context ** Where: catch if either either do begin do ** Near: catch/quit code >> |
this one I can't see how it can be proper, even if you can explain it. | |
note... 'PRINT is not bound to any context !!! wtf? | |
BrianH 14-Jun-2009 [15601] | In which of the 3 files do you put the myfunc: none ? |
Maxim 14-Jun-2009 [15602x2] | rebol [ type: 'module name: 'mymodule-bug928 ] print "TADAM ... mymodule-bug928" myfunc: none do %myscript.r myfunc 928 |
print is global it should accessible from any DO. | |
BrianH 14-Jun-2009 [15604] | Again, I'll be back tomorrow if I can. |
Maxim 14-Jun-2009 [15605x3] | sure... better build a convicing argument cause the above is not acceptible ;-) |
heheh good night. | |
I'm going back to comfortable R2 development now... | |
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