lib/react/jsx/babel_transformer.rb
# frozen_string_literal: true
require "babel/transpiler"
module React
module JSX
# A {React::JSX}-compliant transformer which uses `Babel::Transpiler` to transform JSX.
class BabelTransformer
DEPRECATED_OPTIONS = %i[harmony strip_types asset_path].freeze
DEFAULT_TRANSFORM_OPTIONS = { blacklist: ["spec.functionName", "validation.react", "strict"] }.freeze
def initialize(options)
if (options.keys & DEPRECATED_OPTIONS).any?
ActiveSupport::Deprecation.warn(
<<-MSG
Setting config.react.jsx_transform_options for :harmony, :strip_types, and :asset_path keys is now deprecated and has no effect with the default Babel Transformer.
Please use new Babel Transformer options :whitelist, :plugin instead.
MSG
)
end
@transform_options = DEFAULT_TRANSFORM_OPTIONS.merge(options)
end
def transform(code)
Babel::Transpiler.transform(code, @transform_options)["code"]
end
end
end
end