[0.2.x] fixed : issue #12739 ( How to use getParams()? )

git-svn-id: https://pykd.svn.codeplex.com/svn@87274 9b283d60-5439-405e-af05-b73fd8c4d996

pykd/pykdver.h

@@ -2,7 +2,7 @@
 #define PYKD_VERSION_MAJOR      0
 #define PYKD_VERSION_MINOR      2
 #define PYKD_VERSION_SUBVERSION 0
-#define PYKD_VERSION_BUILDNO    27
+#define PYKD_VERSION_BUILDNO    28
 
 
 #define __VER_STR2__(x) #x

pykd/python/pymod.cpp

@@ -77,7 +77,7 @@ BOOST_PYTHON_MEMBER_FUNCTION_OVERLOADS( Module_findSymbol, Module::getSymbolName
 
 BOOST_PYTHON_MODULE( pykd )
 {
-    python::scope().attr("version") = pykdVersion;
+    python::scope().attr("__version__") = pykdVersion;
 
     // DbgEng services 
     python::def( "setSymSrvDir", &setSymSrvDir,
@@ -574,7 +574,8 @@ BOOST_PYTHON_MODULE( pykd )
         "Class for access to local vars",  python::no_init  )
             .def("__len__", &ScopeVars::getVarCount )
             .def("__getitem__", &ScopeVars::getVarByIndex )
-            .def("__getitem__", &ScopeVars::getVarByName );
+            .def("__getitem__", &ScopeVars::getVarByName )
+            .def("__contains__", &ScopeVars::isContainsVar );
 
     python::class_<StackFrame, StackFramePtr,boost::noncopyable>( "stackFrame", 
          "Class representing a frame of the call stack", python::no_init )

pykd/stkframe.cpp

@@ -260,15 +260,20 @@ python::object StackFrame::getParamByName( const std::string& name )
 
 ////////////////////////////////////////////////////////////////////////////////
 
-ULONG StackFrame::getLocalCount()
+bool StackFrame::isContainsLocal( const std::string& name )
 {
-    ULONG count = 0;
-
-    ModulePtr mod;
-    mod = Module::loadModuleByOffset( m_instructionOffset);
+   ModulePtr mod = Module::loadModuleByOffset( m_instructionOffset);
 
     LONG displacemnt;
-    SymbolPtr func = mod->getSymbolByVa( m_instructionOffset, SymTagFunction, &displacemnt );
+    SymbolPtr func;
+    
+    try {
+        func = mod->getSymbolByVa( m_instructionOffset, SymTagFunction, &displacemnt );
+    }
+    catch(SymbolException&)
+    {
+        return false;
+    }
 
 #ifdef _DEBUG
     std::string funcName;
@@ -277,7 +282,120 @@ ULONG StackFrame::getLocalCount()
 
     if (!IsInDebugRange(func, static_cast<ULONG>( m_instructionOffset - mod->getBase())))
     {
-        throw DbgException("is not debug range");
+        return false;
+    }
+
+    // find var in current scope
+    SymbolPtrList symList = func->findChildren(SymTagData);
+    SymbolPtrList::iterator itVar = symList.begin();
+    for (; itVar != symList.end(); ++itVar)
+    {
+        if ( (*itVar)->getName() == name )
+        {
+            return true;
+        }
+    }
+
+    if ( itVar == symList.end() )
+    {
+        // find inners scopes
+        SymbolPtrList scopeList = func->findChildren(SymTagBlock);
+        SymbolPtrList::iterator itScope = scopeList.begin();
+
+        ULONG ipRva = static_cast<ULONG>( m_instructionOffset - mod->getBase());
+
+        for (; itScope != scopeList.end(); ++itScope)
+        {
+            SymbolPtr scope = *itScope;
+            ULONG scopeRva = scope->getRva();
+            if (scopeRva <= ipRva && (scopeRva + scope->getSize()) > ipRva)
+            {
+                SymbolPtrList symList = scope->findChildren(SymTagData);
+                SymbolPtrList::iterator itVar = symList.begin();
+
+                for (; itVar != symList.end(); ++itVar)
+                {
+                    if ( (*itVar)->getName() == name )
+                    {
+                        return true;
+                    }
+                }
+            }
+        }
+    }
+
+    return false;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+
+bool StackFrame::isContainsParam( const std::string& name )
+{
+    ModulePtr mod = Module::loadModuleByOffset( m_instructionOffset);
+
+    LONG displacemnt;
+    SymbolPtr func;
+    
+    try {
+        func = mod->getSymbolByVa( m_instructionOffset, SymTagFunction, &displacemnt );
+    }
+    catch(SymbolException&)
+    {
+        return false;
+    }
+
+#ifdef _DEBUG
+    std::string funcName;
+    funcName = func->getName();
+#endif  // _DEBUG
+
+    if (!IsInDebugRange(func, static_cast<ULONG>( m_instructionOffset - mod->getBase())))
+    {
+        return false;
+    }
+
+    // find var in current scope
+    SymbolPtrList symList = func->findChildren(SymTagData);
+    SymbolPtrList::iterator itVar = symList.begin();
+    for (; itVar != symList.end(); ++itVar)
+    {
+        if ( (*itVar)->getDataKind() == DataIsParam && (*itVar)->getName() == name )
+        {
+            return true;
+        }
+    }
+
+    return false;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+
+ULONG StackFrame::getLocalCount()
+{
+    ULONG count = 0;
+
+    ModulePtr mod;
+    mod = Module::loadModuleByOffset( m_instructionOffset);
+
+    LONG displacemnt;
+    SymbolPtr func;
+    
+    try {
+        func = mod->getSymbolByVa( m_instructionOffset, SymTagFunction, &displacemnt );
+    }
+    catch(SymbolException&)
+    {
+        return 0;
+    }
+
+#ifdef _DEBUG
+    std::string funcName;
+    funcName = func->getName();
+#endif  // _DEBUG
+
+    if (!IsInDebugRange(func, static_cast<ULONG>( m_instructionOffset - mod->getBase())))
+    {
+        return 0;
     }
 
     // find var in current scope
@@ -320,7 +438,15 @@ ULONG StackFrame::getParamCount()
     mod = Module::loadModuleByOffset( m_instructionOffset);
 
     LONG displacemnt;
-    SymbolPtr func = mod->getSymbolByVa( m_instructionOffset, SymTagFunction, &displacemnt );
+    SymbolPtr func;
+    
+    try {
+        func = mod->getSymbolByVa( m_instructionOffset, SymTagFunction, &displacemnt );
+    }
+    catch(SymbolException&)
+    {
+        return 0;
+    }
 
 #ifdef _DEBUG
     std::string funcName;
@@ -329,7 +455,7 @@ ULONG StackFrame::getParamCount()
 
     if (!IsInDebugRange(func, static_cast<ULONG>( m_instructionOffset - mod->getBase())))
     {
-        throw DbgException("is not debug range");
+        return 0;
     }
 
     // find var in current scope
@@ -352,7 +478,15 @@ python::object  StackFrame::getLocalByIndex( ULONG index )
     ModulePtr mod = Module::loadModuleByOffset( m_instructionOffset);
 
     LONG displacemnt;
-    SymbolPtr func = mod->getSymbolByVa( m_instructionOffset, SymTagFunction, &displacemnt );
+    SymbolPtr func;
+    
+    try {
+        func = mod->getSymbolByVa( m_instructionOffset, SymTagFunction, &displacemnt );
+    }
+    catch(SymbolException&)
+    {
+        throw PyException( PyExc_IndexError, "index out of range" );
+    }
 
 #ifdef _DEBUG
     std::string funcName;
@@ -361,7 +495,7 @@ python::object  StackFrame::getLocalByIndex( ULONG index )
 
     if (!IsInDebugRange(func, static_cast<ULONG>( m_instructionOffset - mod->getBase())))
     {
-        throw DbgException("is not debug range");
+       throw PyException( PyExc_IndexError, "index out of range" );
     }
 
     // find var in current scope
@@ -445,7 +579,15 @@ python::object StackFrame::getParamByIndex( ULONG index )
     ModulePtr mod = Module::loadModuleByOffset( m_instructionOffset);
 
     LONG displacemnt;
-    SymbolPtr func = mod->getSymbolByVa( m_instructionOffset, SymTagFunction, &displacemnt );
+    SymbolPtr func;
+    
+    try {
+        func = mod->getSymbolByVa( m_instructionOffset, SymTagFunction, &displacemnt );
+    }
+    catch(SymbolException&)
+    {
+        throw PyException( PyExc_IndexError, "index out of range" );
+    }
 
 #ifdef _DEBUG
     std::string funcName;
@@ -454,7 +596,7 @@ python::object StackFrame::getParamByIndex( ULONG index )
 
     if (!IsInDebugRange(func, static_cast<ULONG>( m_instructionOffset - mod->getBase())))
     {
-        throw DbgException("is not debug range");
+        throw PyException( PyExc_IndexError, "index out of range" );
     }
 
     // find var in current scope

pykd/stkframe.h

@@ -46,6 +46,10 @@ public:
 
     python::object getParamByName( const std::string& name );
 
+    bool isContainsLocal( const std::string& name );
+
+    bool isContainsParam( const std::string& name );
+
     python::object getLocalByIndex( ULONG index );
 
     python::object getParamByIndex( ULONG index );
@@ -71,6 +75,7 @@ public:
     virtual ULONG getVarCount() const = 0;
     virtual python::object getVarByName( const std::string &name ) = 0;
     virtual python::object getVarByIndex(ULONG index) const  = 0 ;
+    virtual bool isContainsVar( const std::string &name ) = 0;
 
 protected:
 
@@ -100,6 +105,10 @@ private:
     python::object getVarByIndex(ULONG index) const {
         return m_frame->getLocalByIndex( index );
     }
+
+    bool isContainsVar( const std::string &name ) {
+        return m_frame->isContainsLocal(name);
+    }
 };
 
 
@@ -124,6 +133,10 @@ private:
     python::object getVarByIndex(ULONG index) const {
         return m_frame->getParamByIndex(index);
     }
+
+    bool isContainsVar( const std::string &name ) {
+        return m_frame->isContainsParam(name);
+    }
 };
 
 ///////////////////////////////////////////////////////////////////////////////

pykd/variant.h

@@ -231,7 +231,13 @@ public:
     }
 
     python::object nonzero() {
-        return boost::apply_visitor( VariantToPyobj(), getValue() ) != 0;
+        try {
+            return boost::apply_visitor( VariantToPyobj(), getValue() ) != 0;
+        } 
+        catch( DbgException& )
+        {}
+
+        return python::object(true);
     }
 
     operator ULONG64() {

test/scripts/intbase.py

@@ -47,6 +47,10 @@ class IntBaseTest( unittest.TestCase ):
         self.assertTrue( -0x8000000000000000 - 1 != intBase(-0x8000000000000000) )
         self.assertTrue( intBase(1) != intBase(2) )
         
+    def testIs( self ):
+        a = b = intBase(0x1)
+        self.assertTrue( a is b )
+        
     def testLtGt( self ):
         self.assertTrue( 0xFE < intBase(0xFF) and intBase(0xFE) < 0xFF )
         self.assertFalse( -99 < intBase(-100) and intBase(-99) < - 100 )

test/scripts/localstest.py

@@ -46,4 +46,11 @@ class LocalVarsTest(unittest.TestCase):
             funcParams = pykd.getParams()
             self.assertEqual( len(funcParams), 2 )
             self.assertTrue( funcParams[0] == 7 or funcParams[1] == 7 )
-            
+    
+    def testNoLocals(self):
+        """Start new process and test local variables"""
+        _locProcessId = pykd.startProcess( target.appPath + " -testEnumWindows" )
+        with testutils.ContextCallIt( testutils.KillProcess(_locProcessId) ) as killStartedProcess :
+            #initial break
+            self.assertEqual(0, len(pykd.getLocals()))
+            self.assertEqual(0, len(pykd.getParams()))

test/scripts/pykdtest.py

@@ -70,7 +70,7 @@ def getTestSuite( singleName = "" ):
           
 if __name__ == "__main__":
 
-    print "\nTesting PyKd ver. " + pykd.version
+    print "\nTesting PyKd ver. " + pykd.__version__
 
     target.appPath = sys.argv[1]
     target.moduleName = os.path.splitext(os.path.basename(target.appPath))[0]