Add ProgramNode.cpp with definitions for ProgramNode member functions.

Structural_Patterns/Facade/CMakeLists.txt

@@ -1,6 +1,7 @@
 set(facade_SRCS
     Compiler.cpp
-    ExpressionNode.cpp)
+    ExpressionNode.cpp
+    ProgramNode.cpp)
 
 add_library(facade SHARED ${facade_SRCS})
 target_include_directories(facade PRIVATE ../../Foundation_Classes ../../Behavioral_Patterns/Iterator)

Structural_Patterns/Facade/ProgramNode.cpp

@@ -0,0 +1,26 @@
+#include "ProgramNode.h"
+
+void ProgramNode::GetSourcePosition(int& line, int& index)
+{
+    // TODO
+}
+
+void ProgramNode::Add(ProgramNode*)
+{
+    // TODO
+}
+
+void ProgramNode::Remove(ProgramNode*)
+{
+    // TODO
+}
+
+void ProgramNode::Traverse(CodeGenerator&)
+{
+    // TODO
+}
+
+ProgramNode::ProgramNode()
+{
+    // TODO
+}