8335cccafb
* Reduce redunrant 'Return' prefix on summaries * Improve summary line to reflect the semantics of operation better
92 lines
2 KiB
Ruby
92 lines
2 KiB
Ruby
module Mutant
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module AST
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# Helper methods to define named children
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module NamedChildren
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# Hook called when module gets included
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#
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# @param [Class, Module] host
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#
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# @return [undefined]
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#
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# @api private
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def self.included(host)
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host.class_eval do
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include InstanceMethods
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extend ClassMethods
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end
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end
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# Methods mixed int ot instance level
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module InstanceMethods
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private
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# Mutated nodes children
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#
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# @return [Array<Parser::AST::Node]
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#
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# @api private
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def children
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node.children
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end
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end # InstanceMethods
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# Methods mixed in at class level
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module ClassMethods
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private
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# Define named child
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#
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# @param [Symbol] name
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# @param [Fixnum] index
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#
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# @return [undefined]
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#
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# @api private
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def define_named_child(name, index)
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define_method(name) do
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children.at(index)
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end
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end
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# Define remaining children
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#
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# @param [Array<Symbol>] names
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#
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# @return [undefined]
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#
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# @api private
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def define_remaining_children(names)
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define_method(:remaining_children_with_index) do
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children.each_with_index.drop(names.length)
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end
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define_method(:remaining_children_indices) do
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children.each_index.drop(names.length)
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end
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define_method(:remaining_children) do
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children.drop(names.length)
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end
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end
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# Create name helpers
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#
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# @return [undefined]
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#
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# @api private
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def children(*names)
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names.each_with_index do |name, index|
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define_named_child(name, index)
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end
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define_remaining_children(names)
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end
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end # ClassMethods
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end # NamedChildren
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end # AST
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end # Mutant
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