47 lines
1.1 KiB
Python
47 lines
1.1 KiB
Python
from smnp.ast.node.atom import LiteralParser
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from smnp.ast.node.iterable import abstractIterableParser
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from smnp.ast.node.model import Node
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from smnp.ast.node.operator import BinaryOperator, Operator
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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 MapEntry(BinaryOperator):
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@property
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def key(self):
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return self[0]
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@key.setter
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def key(self, value):
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self[0] = value
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@property
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def value(self):
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return self[2]
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@value.setter
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def value(self, value):
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self[2] = value
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class Map(Node):
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pass
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def MapParser(input):
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from smnp.ast.node.expression import MaxPrecedenceExpressionParser
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keyParser = LiteralParser
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valueParser = MaxPrecedenceExpressionParser
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mapEntryParser = Parser.allOf(
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keyParser,
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Parser.terminalParser(TokenType.ARROW, createNode=Operator.withValue),
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valueParser,
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createNode=MapEntry.withValues
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)
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mapParser = abstractIterableParser(Map, TokenType.OPEN_CURLY, TokenType.CLOSE_CURLY, mapEntryParser)
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return Parser(mapParser, "map", [mapParser])(input)
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