targets/XSD_toolchain_gcc
author Andrey Skvortsov <andrej.skvortzov@gmail.com>
Fri, 24 Aug 2018 13:41:43 +0300
changeset 2297 96ca6b056c55
parent 1478 69fe0b81e951
permissions -rwxr-xr-x
Proper fix for error 'object has no attribute 'getSlave' in EtherCAT extension

traceback:
File "/home/developer/WorkData/PLC/beremiz/beremiz/IDEFrame.py", line 1433, in OnPouSelectedChanged
window.RefreshView()
File "/home/developer/WorkData/PLC/beremiz/beremiz/etherlab/ConfigEditor.py", line 837, in RefreshView
self.RefreshProcessVariables()
File "/home/developer/WorkData/PLC/beremiz/beremiz/etherlab/ConfigEditor.py", line 886, in RefreshProcessVariables
slaves = self.Controler.GetSlaves(**self.CurrentNodesFilter)
File "/home/developer/WorkData/PLC/beremiz/beremiz/etherlab/EthercatMaster.py", line 341, in GetSlaves
for slave in self.Config.getConfig().getSlave():
<type 'exceptions.AttributeError'>:_'lxml.etree._Element'_object_has_no_attribute_'getSlave'

Steps to reproduce problem:

- Add new EtherCAT master
- Add new EthercatNode to the master
- double click on


Revert commit "Dirty fix for error '_object_has_no_attribute_'getSlave' in EtherCAT extension"
[a3ac46366b86a0b237dac93be6b2281ac70b98a8].

The problem was that XML elements (proxy object) in some cases were created using custom XML
classes constructors and lxml.etree.Element() call and live python
patching. This causes that lxml backend doesn't know that custom python class
should be used for these XML elements.
Proxy object can be move/deleted and recreated by lxml
backend at any point in time or this can be done in python by copy/deepcopy operations.
If this happens, then newly created
proxy elements are using default class lxml.etree._Element. And all
custom functionality is lost.

All created XML elements should be always created through corresponding
parser and class lookup callback done by lxml backend.
It's described in more details in lxml documentation:
https://lxml.de/element_classes.html
251
2066d2c65b71 change default linker (ld ) to g++ in XSD for gcc toolchain
greg
parents: 203
diff changeset
     1
2066d2c65b71 change default linker (ld ) to g++ in XSD for gcc toolchain
greg
parents: 203
diff changeset
     2
          <xsd:attribute name="Compiler" type="xsd:string" use="optional" default="gcc"/>
1478
69fe0b81e951 make attribute CFLAGS and LDFLAGS optional and add default empty value
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 621
diff changeset
     3
          <xsd:attribute name="CFLAGS" type="xsd:string" use="optional" default=""/>
621
a3ce93d63832 Default gcc toolchain config now use 'gcc' for linking. Was left accidentally to g++ since old times of wxSVG based SVGUI. Cleaned up gcc parameters when linking
Edouard Tisserant
parents: 251
diff changeset
     4
          <xsd:attribute name="Linker" type="xsd:string" use="optional" default="gcc"/>
1478
69fe0b81e951 make attribute CFLAGS and LDFLAGS optional and add default empty value
Andrey Skvortsov <andrej.skvortzov@gmail.com>
parents: 621
diff changeset
     5
          <xsd:attribute name="LDFLAGS" type="xsd:string" use="optional" default=""/>