Hi, Thanks for the answers... I'm trying to advance my plugin with your advices, but is a little hard to understand (and no much time available). I have a question, maybe very basic, but I'm a newbie at plugin development:
Is there a place where I can see all the Slang defined methods? I'm asking because in some places I see a "self strlen: blah" and I would like to know which ones are available for use, instead of fill my code of "self cCode: 'blah') sentences.
Many thanks, Esteban
There is no slang defined methods.
The rule is
self blafoobar: thing becomes blafoobar(thing) when it builds the C code because it is methodName: argument becomes methodName(argument)
For methods with more than one argument SLANG concatinates the parts into one Name. Thus you can construct something like
self mem: foo c: bar py: too
then becomes memcpy(foo,bar,too);
Or so I remember
You can also use this to code procedures in SLANG for the plugin. For example in the GStreamer plugin I code a SLANG method
cb: element new: newPad pad: data "Ok the trick here is on the signal pad_add we may have multiple pads being created. Therefore we must find the sink pad that can handle the request. Note for ogg you could have the audio and video stream for example"
| max result gstPadValue gstCapsValue |
self var: #gstPadValue declareC: 'GstPad* gstPadValue'. self var: #gstCapsValue declareC: 'GstCaps* gstCapsValue'. self var: #data declareC: 'sqInt *data'.
that becomes a C procedure static sqInt cbnewpad(sqInt element, sqInt newPad, sqInt *data)
On Sep 16, 2008, at 8:17 PM, Esteban Lorenzano wrote:
Hi, Thanks for the answers... I'm trying to advance my plugin with your advices, but is a little hard to understand (and no much time available). I have a question, maybe very basic, but I'm a newbie at plugin development:
Is there a place where I can see all the Slang defined methods? I'm asking because in some places I see a "self strlen: blah" and I would like to know which ones are available for use, instead of fill my code of "self cCode: 'blah') sentences.
Many thanks, Esteban
-- = = = ======================================================================== John M. McIntosh johnmci@smalltalkconsulting.com Corporate Smalltalk Consulting Ltd. http://www.smalltalkconsulting.com = = = ========================================================================
In the RomePlugin I added a hack that translates
self cairoFooBar: x baz: y as
cairo_foo_bar(x, y)
by matching selectors beginning with "cairo". Very handy for underscore-hating Slang hackers, though not exactly a beginner's topic ;)
- Bert -
Am 17.09.2008 um 17:22 schrieb John M McIntosh:
There is no slang defined methods.
The rule is
self blafoobar: thing becomes blafoobar(thing) when it builds the C code because it is methodName: argument becomes methodName(argument)
For methods with more than one argument SLANG concatinates the parts into one Name. Thus you can construct something like
self mem: foo c: bar py: too
then becomes memcpy(foo,bar,too);
Or so I remember
You can also use this to code procedures in SLANG for the plugin. For example in the GStreamer plugin I code a SLANG method
cb: element new: newPad pad: data "Ok the trick here is on the signal pad_add we may have multiple pads being created. Therefore we must find the sink pad that can handle the request. Note for ogg you could have the audio and video stream for example"
| max result gstPadValue gstCapsValue |
self var: #gstPadValue declareC: 'GstPad* gstPadValue'. self var: #gstCapsValue declareC: 'GstCaps* gstCapsValue'. self var: #data declareC: 'sqInt *data'.
that becomes a C procedure static sqInt cbnewpad(sqInt element, sqInt newPad, sqInt *data)
On Sep 16, 2008, at 8:17 PM, Esteban Lorenzano wrote:
Hi, Thanks for the answers... I'm trying to advance my plugin with your advices, but is a little hard to understand (and no much time available). I have a question, maybe very basic, but I'm a newbie at plugin development:
Is there a place where I can see all the Slang defined methods? I'm asking because in some places I see a "self strlen: blah" and I would like to know which ones are available for use, instead of fill my code of "self cCode: 'blah') sentences.
Many thanks, Esteban
-- = = = = = ====================================================================== John M. McIntosh johnmci@smalltalkconsulting.com Corporate Smalltalk Consulting Ltd. http:// www.smalltalkconsulting.com = = = = = ======================================================================
vm-dev@lists.squeakfoundation.org
-
Bert Freudenberg -
Esteban Lorenzano -
John M McIntosh