Class: Yoda::Server::SignatureProvider

Inherits:
Object
  • Object
show all
Defined in:
lib/yoda/server/signature_provider.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(session) ⇒ SignatureProvider

Returns a new instance of SignatureProvider.

Parameters:



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# File 'lib/yoda/server/signature_provider.rb', line 7

def initialize(session)
  @session = session
end

Instance Attribute Details

#session ⇒ Object (readonly)

Returns the value of attribute session.



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# File 'lib/yoda/server/signature_provider.rb', line 4

def session
  @session
end

Instance Method Details

#create_signature_help(functions) ⇒ Object

Parameters:



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# File 'lib/yoda/server/signature_provider.rb', line 25

def create_signature_help(functions)
  signatures = functions.map { |func| Model::Descriptions::FunctionDescription.new(func) }
  LSP::Interface::SignatureHelp.new(
    signatures: signatures.map { |signature| create_signature_info(signature) },
  )
end

#create_signature_info(signature) ⇒ Object

Parameters:

  • signature (Evaluation::Descriptions::FunctionDescription) 


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# File 'lib/yoda/server/signature_provider.rb', line 33

def create_signature_info(signature)
  LSP::Interface::SignatureInformation.new(
    label: signature.title.to_s,
    documentation: signature.to_markdown,
    parameters: signature.parameter_names.map do |parameter|
      LSP::Interface::ParameterInformation.new(
        label: parameter,
      )
    end,
  )
end

#provide(uri, position) ⇒ Object

Parameters:

  • uri (String)
  • position ({Symbol => Integer}) 


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# File 'lib/yoda/server/signature_provider.rb', line 13

def provide(uri, position)
  source = session.file_store.get(uri)
  location = Parsing::Location.of_language_server_protocol_position(line: position[:line], character: position[:character])
  cut_source = Parsing::SourceCutter.new(source, location).error_recovered_source

  signature_worker = Evaluation::SignatureDiscovery.new(session.registry, cut_source, location)

  functions = signature_worker.method_candidates
  create_signature_help(functions)
end