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# frozen_string_literal: true
module Parser
module AST
##
# {Parser::AST::Node} contains information about a single AST node and its
# child nodes. It extends the basic [AST::Node](https://www.rubydoc.info/gems/ast/AST/Node)
# class provided by gem [ast](https://www.rubydoc.info/gems/ast).
#
# @api public
#
# @!attribute [r] location
# Source map for this Node.
# @return [Parser::Source::Map]
#
class Node < ::AST::Node
attr_reader :location
alias loc location
##
# Assigns various properties to this AST node. Currently only the
# location can be set.
#
# @param [Hash] properties
# @option properties [Parser::Source::Map] :location Location information
# of the node.
#
def assign_properties(properties)
if (location = properties[:location])
location = location.dup if location.frozen?
location.node = self
@location = location
end
end
end
end
end
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