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|
module Morpher
class Compiler
class Preprocessor
class Emitter
# Namespace class for key preprocessors
class Key < self
include AbstractType
# Key symbolization preprocessor
class Symbolize < self
register :key_symbolize
children :key, :operand
private
# Return transformed node
#
# @param [Node] node
#
# @return [Node]
#
# @api private
#
def processed_node
s(:key_transform, key.to_s, key.to_sym, operand)
end
end # Symbolize
# Neutral key preprocessor
class Neutral < self
register :key
children :key, :operand
private
# Return transformed node
#
# @param [Node] node
#
# @return [Node]
#
# @api private
#
def processed_node
s(:key_transform, key, key, operand)
end
end # Neutral
# Key transformation preprocessor
class Transform < self
register :key_transform
children :from, :to, :operand
private
# Return transformed node
#
# @param [Node] node
#
# @return [Node]
#
# @api private
#
def processed_node
s(
:block,
s(:key_fetch, from),
visit(operand),
s(:key_dump, to)
)
end
end # Transform
end # Key
end # Emitter
end # Preprocessor
end # Compiler
end # Morpher
|
