Cannot find type `Sinatra::Base`
ruby file
class StaticApp < Sinatra::Base
end
rbs file
class StaticApp < Sinatra::Base
end
run
bundle exec steep check --log-level=fatal
result
[error] Cannot find type `Sinatra::Base`
Diagnostic ID: RBS::UnknownTypeName
I use steep gem. It seems it is needed to require some files. But
library 'sinatra'
doesn't work.
#<RBS::EnvironmentLoader::UnknownLibraryError: Cannot find type definitions for library: sinatra ([nil])>
What do I wrong? Thanks.
But
library 'sinatra'doesn't work ..RBS::EnvironmentLoader::UnknownLibraryError
# Steepfile
target :app do
repo_path 'vendor/rbs'
Create a directory structure like vendor/rbs/sinatra/0/sinatra.rbs.
How you write or generate the contents of sinatra.rbs is out of the scope of this answer, but check out gem_rbs_collection. Rails people, see rbs_rails.
Steep is using an RBS::EnvironmentLoader.
# steep-0.47.0/lib/steep/project/target.rb:54
loader = RBS::EnvironmentLoader.new(core_root: core_root_path, repository: repo)
options.libraries.each do |lib|
name, version = lib.split(/:/, 2)
loader.add(library: name, version: version)
end
The EnvironmentLoader can find a library in either gem_sig_path (I think this would be a sig folder distributed in the gem), or in a repository.
# rbs-1.7.1/lib/rbs/environment_loader.rb:68
def has_library?(library:, version:)
if self.class.gem_sig_path(library, version) || repository.lookup(library, version)
true
else
false
end
end
In a Steepfile, repositories are configured via repo_path.
# Steepfile
repo_path 'vendor/rbs'
For the directory structure of a repository, I took https://github.com/ruby/rbs/tree/master/stdlib as an example.
ls -R vendor/rbs
activesupport
vendor/rbs/activesupport:
0
vendor/rbs/activesupport/0:
activesupport.rbs