added Instruction class (#6)

scripts/Infrastructure/AllocCall.py

 #! /usr/bin/python3
+from typing_extensions import override
 
+from scripts.Infrastructure.Instruction import Instruction
 
 alloc_template = """
 @{TYPE}@* @{NAME}@ = (@{TYPE}@*) @{FUNCTION}@(@{NUM}@ @{SEP}@ sizeof(@{TYPE}@)); 
@@ -20,8 +22,8 @@ alloc_template = """
 """
 
 
-class AllocCall:
-
+class AllocCall (Instruction):
+    @override
     def __init__(self, type, num_elements, name="buf", use_malloc=False):
         """
         Creates a New allocation Call
@@ -37,6 +39,7 @@ class AllocCall:
         self._num_elements = num_elements
         self._name = name
 
+    @override
     def __str__(self):
         if self._use_malloc:
             delim = '*'

scripts/Infrastructure/Instruction.py

+#! /usr/bin/python3
+
+
+class Instruction(object):
+    """
+    Base class to represent an Instruction
+    """
+
+    def __init__(self, str_representation):
+        self._str_representation = str_representation
+
+    def __str__(self):
+        return self._str_representation

scripts/Infrastructure/MPICall.py

 #! /usr/bin/python3
+from typing_extensions import override
 
+from scripts.Infrastructure.Instruction import Instruction
 from scripts.Infrastructure.Variables import ERROR_MARKER_COMMENT
 
 
-class MPI_Call:
+class MPI_Call (Instruction):
 
+    @override
     def __init__(self, function, args, version):
         self._function = function
         self._args = args
         self._version = version
         self._has_error = False
 
+    @override
     def __str__(self):
         s = self._function + "("
         for k, v in self._args.items():