70 lines
2.1 KiB
Python
70 lines
2.1 KiB
Python
from smnp.ast.node.block import BlockNode
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from smnp.ast.node.function import FunctionDefinitionNode
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from smnp.ast.node.identifier import IdentifierNode
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from smnp.ast.node.none import NoneNode
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from smnp.ast.node.statement import StatementNode
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from smnp.ast.node.type import TypeNode
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from smnp.ast.parser import Parser
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from smnp.token.type import TokenType
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class ExtendNode(StatementNode):
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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 type(self):
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return self[0]
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@type.setter
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def type(self, value):
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self[0] = value
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@property
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def variable(self):
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return self[1]
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@variable.setter
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def variable(self, value):
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self[1] = value
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@property
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def methods(self):
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return self[2]
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@methods.setter
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def methods(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(extend, type, asKeyword, variable, methods):
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node = ExtendNode(extend.pos)
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node.type = type
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node.variable = variable
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node.methods = methods
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return node
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return Parser.allOf(
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Parser.terminalParser(TokenType.EXTEND),
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Parser.doAssert(TypeNode.parse, "type being extended"),
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Parser.terminalParser(TokenType.AS, doAssert=True),
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Parser.doAssert(IdentifierNode.identifierParser(), "variable name"),
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Parser.doAssert(cls._methodsDeclarationsParser(), "methods declarations"),
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createNode=createNode
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)(input)
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@classmethod
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def _methodsDeclarationsParser(cls):
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def createNode(openBracket, items, closeBracket):
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node = BlockNode(openBracket.pos)
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node.children = items
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return node
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return Parser.loop(
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Parser.terminalParser(TokenType.OPEN_CURLY),
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Parser.doAssert(FunctionDefinitionNode.parse, f"method declaration or '{TokenType.CLOSE_CURLY.key}'"),
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Parser.terminalParser(TokenType.CLOSE_CURLY),
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createNode=createNode
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) |