/
sorbet_signatures.rb
79 lines (62 loc) · 2.55 KB
/
sorbet_signatures.rb
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# typed: strict
# frozen_string_literal: true
module Tapioca
module Gem
module Listeners
class SorbetSignatures < Base
extend T::Sig
include Runtime::Reflection
include SignaturesHelper
TYPE_PARAMETER_MATCHER = /T\.type_parameter\(:?([[:word:]]+)\)/
private
sig { override.params(event: MethodNodeAdded).void }
def on_method(event)
signature = event.signature
return unless signature
event.node.sigs << compile_signature(signature, event.parameters)
end
sig { params(signature: T.untyped, parameters: T::Array[[Symbol, String]]).returns(RBI::Sig) }
def compile_signature(signature, parameters)
parameter_types = T.let(signature.arg_types.to_h, T::Hash[Symbol, T::Types::Base])
parameter_types.merge!(signature.kwarg_types)
parameter_types[signature.rest_name] = signature.rest_type if signature.has_rest
parameter_types[signature.keyrest_name] = signature.keyrest_type if signature.has_keyrest
parameter_types[signature.block_name] = signature.block_type if signature.block_name
sig = RBI::Sig.new
parameters.each do |_, name|
type = sanitize_signature_types(parameter_types[name.to_sym].to_s)
@pipeline.push_symbol(type)
sig << RBI::SigParam.new(name, type)
end
return_type = name_of_type(signature.return_type)
return_type = sanitize_signature_types(return_type)
sig.return_type = return_type
@pipeline.push_symbol(return_type)
parameter_types.values.join(", ").scan(TYPE_PARAMETER_MATCHER).flatten.uniq.each do |k, _|
sig.type_params << k
end
case signature.mode
when "abstract"
sig.is_abstract = true
when "override"
sig.is_override = true
when "overridable_override"
sig.is_overridable = true
sig.is_override = true
when "overridable"
sig.is_overridable = true
end
sig.is_final = signature_final?(signature)
sig
end
sig { params(signature: T.untyped).returns(T::Boolean) }
def signature_final?(signature)
modules_with_final = T::Private::Methods.instance_variable_get(:@modules_with_final)
final_methods = modules_with_final[signature.owner.object_id]
return false unless final_methods
final_methods.include?(signature.method_name)
end
end
end
end
end