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Re: [Dltk-dev] How to create a custom view to the debug view?
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Hello,
This link http://www.eclipse.org/eclipse/debug/documents.php is a good
source of Eclipse debugger documentation. Presentations of two last
EclipseConfs (with source examples) are very useful and explain
practically all parts of Eclipse debug infrastructure with many details.
Eclipse has a common model of debug objects (threads, stack frames and
etc.). Our debug model extends Eclipse model and implements many script
language specific things using DBGP protocol. The main interfaces are:
IScriptThread, IScriptStackFrame, IScriptVariable, IScriptValue. See the
source code for more information.
I think your problem can be solved in the following way. The first thing
you should investigate is the IDebugEventSetListener. Your class may
implement this interface to listen debug events (class DebugEvent).
These events give a complete information about debugging process: when
debugger
suspends, why it suspends (end of step or breakpoint) and etc.
DebugEvent has a good javadoc, read it first. So, you can detect the
moment when your view should be shown.
Adding information about objects is more complex but realizable task. I
think you should use IScriptEvaluationEngine. This interface allow you
to execute any code (in this case Tcl code) in the application thread
and obtain results as instance of IScriptValue. Evaluation engine
interface can be requested through IScriptThread (method
getEvaluationEgine). Instance of IScriptThread can be simply extracted
from DebugEvent.
This is a short outline of possible solution. Please, ask additional
questions for more information.
--
Dmitriy Kovalev
wang dada wrote:
Hi,
Recently I've been studying the debugger of Dltk. What I want to do is
adding a custom view to the DebugView, let's say it to be
CustomObjectView.
When users' scripte suspend at the breakpoint, CustomObjectView will
show all the objects created by now. These objects has no
relation with Tcl lanuage, they are just the bussiness objects created
by users.
For example, users script will be like this: set i [test::newobject1]
set
j [test::new object2]
test::new relationship -parent i j
And I can get all the objects by using: test::get all to get all
the created objects and their relations, and show them in
CustomObjectView with a treeViewer. When user click step,
CustomObjectView will refresh.
Could anyone give me some clue or example code to realize it? I've
read articles at http://www.eclipse.org/eclipse/debug/documents.php,
but still do not know how to begin. Is there any documents about how
to realizing debugger of DLTK? Any advise and help will be greatly
appreciated.
Best regards,
Joy
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