[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Help-smalltalk] Using Smalltalk as a scripting language
From: |
Paolo Bonzini |
Subject: |
Re: [Help-smalltalk] Using Smalltalk as a scripting language |
Date: |
Wed, 28 Oct 2009 21:30:10 +0100 |
User-agent: |
Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.4pre) Gecko/20091014 Fedora/3.0-2.8.b4.fc11 Lightning/1.0pre Thunderbird/3.0b4 |
On 10/28/2009 09:20 PM, Roland Plüss wrote:
What exactly does #open do? Assuming I use a c function as #open in the
base class do I then get this function called whenever there is a
run-time problem?
It is #open: actually. The function will be passed an error message and
it can print it + invoke gst_show_backtrace. However, the function
should also terminate the active process, so it's better if you write it
in Smalltalk.
A better choice is that you write in C a "print"-like function, and then do
TextCollector extend [
primWrite: aString [
<cCall: 'roland_write_string' returning: #void args:
#(#string)>
]
]
Eval [
Transcript message: Transcript -> #primWrite:
]
to connect the transcript to your function.
Then you do not need a #debuggerClass at all, because you can use the
default implementation of UnhandledException. You also get more
flexibility, for example backtraces will include file names and line
numbers instead of bytecode indices (much better!)
Regarding nil, using eval_expr is a solution, yes.
Paolo
- [Help-smalltalk] Using Smalltalk as a scripting language, Roland Plüss, 2009/10/26
- Re: [Help-smalltalk] Using Smalltalk as a scripting language, Paolo Bonzini, 2009/10/26
- Re: [Help-smalltalk] Using Smalltalk as a scripting language, Roland Plüss, 2009/10/27
- Re: [Help-smalltalk] Using Smalltalk as a scripting language, Paolo Bonzini, 2009/10/27
- Re: [Help-smalltalk] Using Smalltalk as a scripting language, Roland Plüss, 2009/10/27
- Re: [Help-smalltalk] Using Smalltalk as a scripting language, Paolo Bonzini, 2009/10/27
- Message not available
- Re: [Help-smalltalk] Using Smalltalk as a scripting language, Paolo Bonzini, 2009/10/28
- Re: [Help-smalltalk] Using Smalltalk as a scripting language, Roland Plüss, 2009/10/28
- Re: [Help-smalltalk] Using Smalltalk as a scripting language, Paolo Bonzini, 2009/10/28
- Re: [Help-smalltalk] Using Smalltalk as a scripting language, Roland Plüss, 2009/10/28
- Re: [Help-smalltalk] Using Smalltalk as a scripting language,
Paolo Bonzini <=
- Re: [Help-smalltalk] Using Smalltalk as a scripting language, Roland Plüss, 2009/10/28
- Re: [Help-smalltalk] Using Smalltalk as a scripting language, Paolo Bonzini, 2009/10/28
- Re: [Help-smalltalk] Using Smalltalk as a scripting language, Roland Plüss, 2009/10/28
- Re: [Help-smalltalk] Using Smalltalk as a scripting language, Paolo Bonzini, 2009/10/29
- Re: [Help-smalltalk] Using Smalltalk as a scripting language, Roland Plüss, 2009/10/29
- Re: [Help-smalltalk] Using Smalltalk as a scripting language, Paolo Bonzini, 2009/10/29
- Re: [Help-smalltalk] Using Smalltalk as a scripting language, Roland Plüss, 2009/10/29
- Re: [Help-smalltalk] Using Smalltalk as a scripting language, Paolo Bonzini, 2009/10/29
- Re: [Help-smalltalk] Using Smalltalk as a scripting language, Roland Plüss, 2009/10/29
- Re: [Help-smalltalk] Using Smalltalk as a scripting language, Paolo Bonzini, 2009/10/29