81 lines
2.0 KiB
Python
81 lines
2.0 KiB
Python
from smnp.ast.node.expression import ExpressionNode
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from smnp.ast.node.model import Node
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from smnp.ast.node.none import NoneNode
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from smnp.ast.parser import Parser
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from smnp.error.syntax import SyntaxException
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from smnp.token.type import TokenType
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class LeftAssociativeOperatorNode(ExpressionNode):
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def __init__(self, pos):
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super().__init__(pos)
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self.children = [NoneNode(), NoneNode(), NoneNode()]
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@property
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def left(self):
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return self[0]
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@left.setter
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def left(self, value):
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self[0] = value
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@property
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def operator(self):
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return self[1]
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@operator.setter
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def operator(self, value):
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self[1] = value
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@property
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def right(self):
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return self[2]
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@right.setter
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def right(self, value):
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self[2] = value
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@classmethod
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def _parse(cls, input):
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def createNode(left, operator, right):
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node = LeftAssociativeOperatorNode(right.pos)
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node.left = left
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node.operator = operator
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node.right = right
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return node
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return Parser.leftAssociativeOperatorParser(
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cls._lhsParser(),
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TokenType.DOT,
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cls._rhsParser(),
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createNode=createNode
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)(input)
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@classmethod
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def _lhsParser(cls):
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raise RuntimeError(f"LHS parser is not implemented in {cls.__name__}")
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@staticmethod
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def _rhsParser():
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from smnp.ast.node.identifier import IdentifierNode
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return Parser.oneOf(
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# TODO!!!
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IdentifierNode._lhsParser(),
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IdentifierNode._functionCallParser(),
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exception=lambda input: SyntaxException(f"Expected property name or method call, found '{input.current().rawValue}'", input.currentPos())
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)
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class OperatorNode(Node):
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def __init__(self, pos):
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super().__init__(pos)
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self.children = [None]
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@property
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def value(self):
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return self[0]
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@value.setter
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def value(self, value):
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self[0] = value |