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|
module Morpher
class Evaluator
# Mixin for unary evaluators
module Unary
CONCORD = Concord::Public.new(:operand)
PRINTER = lambda do |_|
name
indent do
visit(:operand)
end
end
# Return node
#
# @return [AST::Node]
#
# @api private
#
def node
s(type, operand.node)
end
private
# Return success evaluation for input
#
# @param [Object] input
#
# @return [Evalation::Unary]
#
# @api private
#
def evaluation_success(input, operand_evaluation, output)
Evaluation::Unary.success(
evaluator: self,
input: input,
operand_evaluation: operand_evaluation,
output: output
)
end
# Return error evaluation for input
#
# @param [Object] input
#
# @return [Evalation::Unary]
#
# @api private
#
def evaluation_error(input, operand_evaluation)
Evaluation::Unary.error(
evaluator: self,
input: input,
operand_evaluation: operand_evaluation
)
end
private
# Hook called when module gets included
#
# @return [undefined]
#
# @api private
#
def self.included(descendant)
descendant.class_eval do
include CONCORD
printer(&PRINTER)
end
end
private_class_method :included
end # Unary
end # Evaluator
end # Morpher
|
