62 lines
1.5 KiB
Python
62 lines
1.5 KiB
Python
from smnp.ast.node.model import Node
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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 Atom(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
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@classmethod
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def withValue(cls, value, pos):
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node = cls(pos)
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node.value = value
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return node
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class IntegerLiteral(Atom):
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pass
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class StringLiteral(Atom):
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pass
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class NoteLiteral(Atom):
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pass
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class BoolLiteral(Atom):
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pass
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def AtomParser(input):
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from smnp.ast.node.identifier import IdentifierParser
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integerParser = Parser.oneOf(
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Parser.terminalParser(TokenType.INTEGER, lambda val, pos: IntegerLiteral.withValue(int(val), pos)),
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Parser.allOf(
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Parser.terminalParser(TokenType.MINUS),
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Parser.terminalParser(TokenType.INTEGER, lambda val, pos: IntegerLiteral.withValue(int(val), pos)),
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createNode=lambda minus, integer: IntegerLiteral.withValue(-integer.value, minus.pos)
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)
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)
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parser = Parser.oneOf(
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integerParser,
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Parser.terminalParser(TokenType.STRING, lambda val, pos: StringLiteral.withValue(val, pos)),
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Parser.terminalParser(TokenType.NOTE, lambda val, pos: NoteLiteral.withValue(val, pos)),
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Parser.terminalParser(TokenType.BOOL, lambda val, pos: BoolLiteral.withValue(val, pos)),
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IdentifierParser,
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)
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return Parser(parser, "atom", parser)(input)
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