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Versions: 176
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Contents
# frozen_string_literal: true
# typed: strict
module T::NonForcingConstants
# NOTE: This method is documented on the RBI in Sorbet's payload, so that it
# shows up in the hover/completion documentation via LSP.
T::Sig::WithoutRuntime.sig {params(val: BasicObject, klass: String).returns(T::Boolean)}
def self.non_forcing_is_a?(val, klass)
method_name = "T::NonForcingConstants.non_forcing_is_a?"
if klass.empty?
raise ArgumentError.new("The string given to `#{method_name}` must not be empty")
end
current_klass = T.let(nil, T.nilable(Module))
current_prefix = T.let(nil, T.nilable(String))
parts = klass.split('::')
parts.each do |part|
if current_klass.nil?
# First iteration
if part != ""
raise ArgumentError.new("The string given to `#{method_name}` must be an absolute constant reference that starts with `::`")
end
current_klass = Object
current_prefix = ''
# if this had a :: prefix, then there's no more loading to
# do---skip to the next one
next
end
if current_klass.autoload?(part)
# There's an autoload registered for that constant, which means it's not
# yet loaded. `value` can't be an instance of something not yet loaded.
return false
end
# Sorbet guarantees that the string is an absolutely resolved name.
search_inheritance_chain = false
if !current_klass.const_defined?(part, search_inheritance_chain)
return false
end
current_klass = current_klass.const_get(part)
current_prefix = "#{current_prefix}::#{part}"
if !Module.===(current_klass)
raise ArgumentError.new("#{current_prefix} is not a class or module")
end
end
current_klass.===(val)
end
end
Version data entries
176 entries across 176 versions & 1 rubygems