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Contents
require 'ast'
module ATP
# The base processor, this provides a default handler for
# all node types and will not make any changes to the AST,
# i.e. an equivalent AST will be returned by the process method.
#
# Child classes of this should be used to implement additional
# processors to modify or otherwise work with the AST.
#
# @see http://www.rubydoc.info/gems/ast/2.0.0/AST/Processor
class Processor
include ::AST::Processor::Mixin
def run(node)
process(node)
end
def process(node)
if node.respond_to?(:to_ast)
super(node)
else
node
end
end
def handler_missing(node)
node.updated(nil, process_all(node.children))
end
def n(type, children)
ATP::AST::Node.new(type, children)
end
def n0(type)
n(type, [])
end
def n1(type, arg)
n(type, [arg])
end
end
end
Version data entries
11 entries across 11 versions & 1 rubygems