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Contents
# frozen_string_literal: true
module Mutant
module AST
# Node meta information mixin
module Meta
# Metadata for send nodes
class Send
include NamedChildren, Concord.new(:node), NodePredicates
children :receiver, :selector
public :receiver, :selector
ATTRIBUTE_ASSIGNMENT_SELECTOR_SUFFIX = '='
# Arguments of mutated node
#
# @return [Enumerable<Parser::AST::Node>]
alias_method :arguments, :remaining_children
public :arguments
# Test if node is defining a proc
#
# @return [Boolean]
def proc?
naked_proc? || proc_new?
end
# Test if AST node is a valid attribute assignment
#
# @return [Boolean]
def attribute_assignment?
!Types::METHOD_OPERATORS.include?(selector) &&
selector.to_s.end_with?(ATTRIBUTE_ASSIGNMENT_SELECTOR_SUFFIX)
end
# Test for binary operator implemented as method
#
# @return [Boolean]
def binary_method_operator?
Types::BINARY_METHOD_OPERATORS.include?(selector)
end
# Test if receiver is possibly a top level constant
#
# @return [Boolean]
def receiver_possible_top_level_const?
return false unless receiver && n_const?(receiver)
Const.new(receiver).possible_top_level?
end
private
def naked_proc?
!receiver && selector.equal?(:proc)
end
def proc_new?
receiver &&
selector.equal?(:new) &&
n_const?(receiver) &&
Const.new(receiver).name.equal?(:Proc)
end
end # Send
end # Meta
end # AST
end # Mutant
Version data entries
29 entries across 29 versions & 1 rubygems