alef 0.42.0

Opinionated polyglot binding generator for Rust libraries
Documentation 
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# frozen_string_literal: true

require "json"
require "sorbet-runtime"
require "rbconfig"

extension_name = "{{ ext_name }}"
# Ruby may expose more than one shared-library extension via DLEXT/DLEXT2.
dlexts = [RbConfig::CONFIG["DLEXT"], RbConfig::CONFIG["DLEXT2"]].compact.uniq
ruby_abi = RbConfig::CONFIG.fetch("ruby_version")

library_candidates = dlexts.flat_map do |dlext|
  [
    File.join(__dir__, "..", extension_name, ruby_abi, "#{extension_name}.#{dlext}"),
    File.join(__dir__, "..", extension_name, ruby_abi, "lib#{extension_name}.#{dlext}"),
    File.join(__dir__, "..", "#{extension_name}.#{dlext}"),
    File.join(__dir__, "..", "lib#{extension_name}.#{dlext}"),
  ]
end

expanded_candidates = library_candidates.map { |path| File.expand_path(path) }
native_extension = expanded_candidates.find { |path| File.file?(path) }

unless native_extension
  raise(
    LoadError,
    "cannot find #{extension_name} native extension for Ruby ABI #{ruby_abi}; " \
      "searched: #{expanded_candidates.join(", ")}"
  )
end

require native_extension
{% if module_name != native_module_name %}
module {{ module_name }}
  # Re-export public types from the native extension (curated list, excludes Update/Builder types)
{% for type_name in public_types %}
  {{ type_name }} = {{ native_module_name }}.const_get(:{{ type_name }})
{% endfor %}
  # Re-export public module functions from the native extension (curated list)
{% for func_name in public_functions %}
  define_singleton_method(:{{ func_name }}) { |*args, **kwargs, &blk| {{ native_module_name }}.public_send(:{{ func_name }}, *args, **kwargs, &blk) }
{% endfor %}
end
{% endif %}