Create evaluators

AST.py

@@ -1,20 +1,5 @@
 from enum import Enum
 
-class NodeType(Enum):
-    INTEGER = 1
-    STRING = 2
-    NOTE = 3
-    BLOCK = 4
-    ARGUMENTS = 5
-    IDENTIFIER = 6
-    ASSIGN = 7
-    PROGRAM = 8
-    ASTERISK = 9
-    COLON = 10
-    FUNCTION_CALL = 11
-    COMMA = 12
-    PERCENT = 13
-
 class Node:
     def __init__(self):
         self.children = []            
@@ -27,7 +12,7 @@ class Node:
         
     def __getitem__(self, index):
         return self.children[index]
-  
+    
     def append(self, node):
         self.children.append(node)
         
@@ -36,8 +21,7 @@ class Node:
 
 class Program(Node):
     def __init__(self):
-        Node.__init__(self)
-        self.type =  NodeType.PROGRAM        
+        Node.__init__(self)        
     
     def __str__(self):
         return "Program:\n" + "\n".join([str(e) for e in self.children])
@@ -45,32 +29,28 @@ class Program(Node):
 
 class BlockNode(Node):
     def __init__(self):      
-        Node.__init__(self)
-        self.type = NodeType.BLOCK        
+        Node.__init__(self)              
     
     def __str__(self):
         return "B{\n" + "\n".join([str(e) for e in self.children]) + "\n}"
 
 
-class ArgumentsNode(Node):
+class ListNode(Node):
     def __init__(self):
-        Node.__init__(self)
-        self.type = NodeType.ARGUMENTS        
+        Node.__init__(self)              
     
     def __str__(self):
         return "@(" + ", ".join([str(e) for e in self.children]) + ")"      
         
 class IdentifierNode(Node):
-    def __init__(self, identifier):
-        self.type = NodeType.IDENTIFIER
+    def __init__(self, identifier):        
         self.identifier = identifier
     
     def __str__(self):
         return f"L'{self.identifier}'"
         
 class AssignExpression(Node):
-    def __init__(self, target, value):
-        self.type = NodeType.ASSIGN
+    def __init__(self, target, value):        
         self.target = target
         self.value = value
         
@@ -78,8 +58,7 @@ class AssignExpression(Node):
         return f"A[{self.target} = {self.value}]"
    
 class AsteriskStatementNode(Node):
-    def __init__(self, iterator, statement):
-        self.type = NodeType.ASTERISK
+    def __init__(self, iterator, statement):        
         self.iterator = iterator
         self.statement = statement
         
@@ -87,8 +66,7 @@ class AsteriskStatementNode(Node):
         return f"*({self.iterator}: {self.statement})"
    
 class ColonNode(Node):
-    def __init__(self, a, b):
-        self.type = NodeType.COLON
+    def __init__(self, a, b):        
         self.a = a
         self.b = b
         
@@ -101,48 +79,40 @@ class ExpressionNode(Node):
 
 
 class IntegerLiteralNode(ExpressionNode):
-    def __init__(self, value):
-        self.type = NodeType.INTEGER
+    def __init__(self, value):        
         self.value = value        
     
     def __str__(self):
         return f"i'{self.value}'"
 
 class StringLiteralNode(ExpressionNode):
-    def __init__(self, value):
-        self.type = NodeType.STRING
+    def __init__(self, value):        
         self.value = value
 
     def __str__(self):
         return f"s'{self.value}'"
     
 class NoteLiteralNode(ExpressionNode):
-    def __init__(self, value):
-        self.type = NodeType.NOTE
+    def __init__(self, value):        
         self.value = value
         
     def __str__(self):
-        return f"n'{self.value}'"
+        return f"n'{self.value.note}[{self.value.octave}, {self.value.duration}]'"
 
 class FunctionCallNode(Node):
-    def __init__(self, identifier, arguments):
-        self.type = NodeType.FUNCTION_CALL
+    def __init__(self, identifier, arguments):        
         self.identifier = identifier
         self.arguments = arguments
         
     def __str__(self):
         return f"F({self.identifier}: {self.arguments})"
 
-class CommaNode(Node):
-    def __init__(self):
-        self.type = NodeType.COMMA
-        
+class CommaNode(Node):    
     def __str__(self):
         return "[,]"
 
 class PercentNode(Node):
-    def __init__(self, value):
-        self.type = NodeType.PERCENT
+    def __init__(self, value):        
         self.value = value
         
     def __str__(self):