DUChain How to

[Piyush]

I am working on implementing a DUchain for Python as a part of my SOC
project, and the work so far is available at
http://websvn.kde.org/trunk/playground/devtools/kdevelop4-extra-plugins/python/
I have found myself stuck for quite a while now, and here is the recent
patch. If you could look in the codes and help me move a few steps further i
can get on with the rest of the project easily.
The basic trouble that i am facing is with the implementation of the
contextbuilder header, as of now. The header is in the name
contextbuilder.hin the repository.
The Indentation blocks make up a context for Python, which can have as many
child contexts.

Index: pythonlanguagesupport.cpp
===================================================================
--- pythonlanguagesupport.cpp   (revision 689529)
+++ pythonlanguagesupport.cpp   (working copy)
@@ -66,7 +66,7 @@
 void PythonLanguageSupport::documentChanged( KDevelop::IDocument* doc )
 {
         kDebug() << "###########--Adding document to
parser--################" << endl;
-        language()->backgroundParser()->addDocument(doc->url());
+        BackgroundParser::self()->addDocument(doc->url());
 }
 PythonLanguageSupport::~PythonLanguageSupport()
 {
Index: pythonparsejob.cpp
===================================================================
--- pythonparsejob.cpp  (revision 689529)
+++ pythonparsejob.cpp  (working copy)
@@ -112,6 +112,7 @@

     if ( matched )
     {
+        new ContextBuilder(m_session);
         kDebug() << "----Parsing Succeded---"<<endl;//TODO: bind
declarations to the code model
     }
     else
Index: parser/contextbuilder.h
===================================================================
--- parser/contextbuilder.h     (revision 689529)
+++ parser/contextbuilder.h     (working copy)
@@ -29,6 +29,7 @@

 #include <identifier.h>
 #include <ducontext.h>
+#include <ksharedptr.h>

 namespace KDevelop
 {
@@ -38,6 +39,7 @@
 class TopDUContext;
 }

+class PythonEditorIntegrator;
 class ParseSession;

 namespace Python {
@@ -45,11 +47,14 @@
     typedef KSharedPtr<LexedFile> LexedFilePointer;
 }

+using namespace python;
+
 class ContextBuilder: public python::default_visitor
 {

 public:
     ContextBuilder(ParseSession* session);
+    ContextBuilder(PythonEditorIntegrator* editor);

     virtual ~ContextBuilder ();

@@ -68,9 +73,11 @@
         return m_encountered.contains(item);
     }

-    virtual void openContext(KDevelop::DUContext* newContext);
+//     virtual void openContext(KDevelop::DUContext* newContext);
+//
+//     virtual void closeContext();

-    virtual void closeContext();
+    PythonEditorIntegrator* m_editor;

     QSet<KDevelop::DUChainBase*> m_encountered;
     QStack<KDevelop::DUContext*> m_contextStack;
Index: parser/parsesession.h
===================================================================
--- parser/parsesession.h       (revision 689529)
+++ parser/parsesession.h       (working copy)
@@ -26,7 +26,10 @@
 #include <QtCore/QByteArray>

 #include <python_parser.h>
+#include <ksharedptr.h>
+#include <ktexteditor/cursor.h>

+class LexedFile;
 using namespace python;

 class ParseSession
Index: parser/contextbuilder.cpp
===================================================================
--- parser/contextbuilder.cpp   (revision 0)
+++ parser/contextbuilder.cpp   (revision 0)
@@ -0,0 +1,24 @@
+#include <contextbuilder.h>
+#include <duchain.h>
+#include <duchainlock.h>
+
+
+using namespace KDevelop;
+using namespace python;
+
+ContextBuilder::ContextBuilder(ParseSession* session)
+{
+    kDebug() << "=====Building DUChain===="<<endl;
+
+}
+
+ContextBuilder::~ContextBuilder ()
+{
+}
+
+TopDUContext* ContextBuilder::buildContexts(const Python::LexedFilePointer&
file, ast_node *node, QList<DUContext*>* includes)
+{
+    TopDUContext* topLevelContext = 0;
+    {
+    }
+}
Index: CMakeLists.txt
===================================================================
--- CMakeLists.txt      (revision 689529)
+++ CMakeLists.txt      (working copy)
@@ -22,6 +22,7 @@
     ${KDE4_INCLUDE_DIR}/threadweaver
     ${CMAKE_CURRENT_BINARY_DIR}
     ${KDEVPLATFORM_INCLUDE_DIR}/language/duchain
+    ${KDEVPLATFORM_INCLUDE_DIR}/language/duchain/viewer
     parser
 )

@@ -49,10 +50,10 @@
                     "${CMAKE_CURRENT_SOURCE_DIR}/parser/python.g" ">rules"
"2>errors"
             WORKING_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}"
         )
-        # Copy ruby_lexer.ll to the builddir, so that flex doesn't write
out
+        # Copy python_lexer.ll to the builddir, so that flex doesn't write
out
         # absolute paths in the generated file when we pass them as
arguments.
         # In short, I don't want stuff like
-        # '#line 2 "/home/kde/build/.../ruby_lexer.cpp" in SVN.
+        # '#line 2 "/home/kde/build/.../python_lexer.cpp" in SVN.
         add_custom_command(
             OUTPUT  "${CMAKE_CURRENT_BINARY_DIR}/python_lexer.ll"
             MAIN_DEPENDENCY "${CMAKE_SOURCE_DIR}/parser/python_lexer.ll"
@@ -93,6 +94,7 @@
     pythonlanguagesupport.cpp
     pythonparsejob.cpp
     parser/parsesession.cpp
+    parser/contextbuilder.cpp
     ${parser_SRCS} ${parser_STAT_SRCS}
 )



-- 
Regards,
Piyush Verma
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