37 lines
1.4 KiB
Python
37 lines
1.4 KiB
Python
from smnp.ast.node.none import NoneNode
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from smnp.library.signature import ofType, signature
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from smnp.runtime.evaluator import Evaluator
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from smnp.runtime.evaluators.function import argumentsNodeToMethodSignature, listSpecifier
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from smnp.type.model import Type
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class ExtendEvaluator(Evaluator):
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@classmethod
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def evaluator(cls, node, environment):
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type = cls._typeToMethodSignature(node.type) # TODO check if it isn't necessary to verify 'result' attr of EvaluatioNResult
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variable = node.variable.value
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cls._evaluateExtend(node.methods, environment, type, variable)
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@classmethod
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def _typeToMethodSignature(cls, node):
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if type(node.specifier) == NoneNode:
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return signature(ofType(node.type))
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elif node.type == Type.LIST:
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return signature(listSpecifier(node.specifier))
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@classmethod
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def _evaluateExtend(cls, node, environment, type, variable):
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for child in node.children:
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cls._evaluateMethodDefinition(child, environment, type, variable)
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@classmethod
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def _evaluateMethodDefinition(cls, node, environment, type, variable):
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name = node.name.value
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signature = argumentsNodeToMethodSignature(node.arguments)
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arguments = [arg.variable.value for arg in node.arguments]
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body = node.body
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environment.addCustomMethod(type, variable, name, signature, arguments, body)
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