Files
smnp-py/smnp/AST.py
Bartłomiej Pluta f826516d8f Refactor tokenizer
2019-07-03 01:55:08 +02:00

224 lines
6.4 KiB
Python

from enum import Enum
from Note import Note
class Node:
def __init__(self, parent, pos):
self.children = []
self.parent = parent
self.pos = pos
for child in self.children:
child.parent = self
def __repr__(self):
return self.__str__()
def __len__(self):
return len(self.children)
def __getitem__(self, index):
return self.children[index]
def append(self, node):
node.parent = self
self.children.append(node)
def pop(self, index):
return self.children.pop(index)
def _print(self, level):
string = f"{pad(level)}{self.__class__.__name__}({self.parent.__class__.__name__}):\n"
for child in self.children:
if isinstance(child, str) or isinstance(child, int) or isinstance(child, Note):
string += pad(level+1) + f"'{child}'\n"
else:
string += child._print(level+1)
return string
def __str__(self):
return self._print(0)
def pad(level):
return (" " * level)
class Program(Node):
def __init__(self):
Node.__init__(self, None, (-1, -1))
#def __str__(self):
#return "Program:\n" + "\n".join([str(e) for e in self.children])
def print(self):
print(self._print(0))
class BlockNode(Node):
def __init__(self, parent, pos):
Node.__init__(self, parent, pos)
#def __str__(self):
#return "B{\n" + "\n".join([str(e) for e in self.children]) + "\n}"
class BlockItemNode(Node):
def __init__(self, statement, parent, pos):
Node.__init__(self, parent, pos)
self.children.append(statement)
self.statement = self.children[0]
class CloseBlockNode(Node):
def __init__(self, parent, pos):
Node.__init__(self, parent, pos)
class ListNode(Node):
def __init__(self, parent, pos):
Node.__init__(self, parent, pos)
#def __str__(self):
#return "@(" + ", ".join([str(e) for e in self.children]) + ")"
class IdentifierNode(Node):
def __init__(self, identifier, parent, pos):
Node.__init__(self, parent, pos)
self.children.append(identifier)
self.identifier = self.children[0]
#def __str__(self):
#return f"L'{self.identifier}'"
class AssignmentNode(Node):
def __init__(self, target, value, parent, pos):
Node.__init__(self, parent, pos)
self.children.extend([target, value])
self.target = self.children[0]
self.value = self.children[1]
#def __str__(self):
#return f"A[{self.target} = {self.value}]"
class AsteriskNode(Node):
def __init__(self, iterator, statement, parent, pos):
Node.__init__(self, parent, pos)
self.children.extend([iterator, statement])
self.iterator = self.children[0]
self.statement = self.children[1]
#def __str__(self):
#return f"*({self.iterator}: {self.statement})"
class ColonNode(Node):
def __init__(self, a, b, parent, pos):
Node.__init__(self, parent, pos)
self.children.extend([a, b])
self.a = self.children[0]
self.b = self.children[1]
#def __str__(self):
#return f":({self.a}, {self.b})"
class ExpressionNode(Node):
def __init__(self, parent, pos):
Node.__init__(self, parent, pos)
#def __str__(self):
#return f"{self.__class__.__name__}('{self.value}')"
class IntegerLiteralNode(ExpressionNode):
def __init__(self, value, parent, pos):
Node.__init__(self, parent, pos)
self.children.append(value)
self.value = self.children[0]
#def __str__(self):
#return f"i'{self.value}'"
class StringLiteralNode(ExpressionNode):
def __init__(self, value, parent, pos):
Node.__init__(self, parent, pos)
self.children.append(value)
self.value = self.children[0]
#def __str__(self):
#return f"s'{self.value}'"
class NoteLiteralNode(ExpressionNode):
def __init__(self, value, parent, pos):
Node.__init__(self, parent, pos)
self.children.append(value)
self.value = self.children[0]
#def __str__(self):
#return f"n'{self.value.note}[{self.value.octave}, {self.value.duration}]'"
class FunctionCallNode(Node):
def __init__(self, identifier, arguments, parent, pos):
Node.__init__(self, parent, pos)
self.children.extend([identifier, arguments])
self.identifier = self.children[0]
self.arguments = self.children[1]
#def __str__(self):
#return f"F({self.identifier}: {self.arguments})"
class CommaNode(Node):
def __init__(self, parent, pos):
Node.__init__(self, parent, pos)
#def __str__(self):
#return "[,]"
class PercentNode(Node):
def __init__(self, value, parent, pos):
Node.__init__(self, parent, pos)
self.children.append(value)
self.value = self.children[0]
#def __str__(self):
#return f"%'{self.value}'"
class FunctionDefinitionNode(Node):
def __init__(self, name, parameters, body, parent, pos):
Node.__init__(self, parent, pos)
self.children.extend([name, parameters, body])
self.name = self.children[0]
self.parameters = self.children[1]
self.body = self.children[2]
#def __str__(self):
#return f"$F'{self.name}{self.parameters}{self.body}"
class ReturnNode(Node):
def __init__(self, value, parent, pos):
Node.__init__(self, parent, pos)
self.children.append(value)
self.value = self.children[0]
#def __str__(self):
#return f"Ret({self.value})"
class ListItemNode(Node):
def __init__(self, value, parent, pos):
Node.__init__(self, parent, pos)
self.children.append(value)
self.value = self.children[0]
class AccessNode(Node):
def __init__(self, element, property, parent, pos):
Node.__init__(self, parent, pos)
self.children.extend([element, property])
self.element = self.children[0]
self.property = self.children[1]
class CloseListNode(Node):
pass