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  • rbs-2.1.0/lib/rbs/type_name_resolver.rb

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RBS::TypeNameResolver

Constants

Query

Attributes

all_names[R]
cache[R]

Public Class Methods

from_env(env) click to toggle source 
 
               # File rbs-2.1.0/lib/rbs/type_name_resolver.rb, line 13
def self.from_env(env)
  new.add_names(env.class_decls.keys)
    .add_names(env.interface_decls.keys)
    .add_names(env.alias_decls.keys)
end
new() click to toggle source 
 
               # File rbs-2.1.0/lib/rbs/type_name_resolver.rb, line 8
def initialize()
  @all_names = Set[]
  @cache = {}
end

Public Instance Methods

add_names(names) click to toggle source 
 
               # File rbs-2.1.0/lib/rbs/type_name_resolver.rb, line 19
def add_names(names)
  all_names.merge(names)
  self
end
has_name?(full_name) click to toggle source 
 
               # File rbs-2.1.0/lib/rbs/type_name_resolver.rb, line 59
def has_name?(full_name)
  if all_names.include?(full_name)
    full_name
  end
end
resolve(type_name, context:) click to toggle source 
 
               # File rbs-2.1.0/lib/rbs/type_name_resolver.rb, line 31
def resolve(type_name, context:)
  if type_name.absolute?
    return type_name
  end

  query = Query.new(type_name: type_name, context: context)
  try_cache(query) do
    path_head, *path_tail = type_name.to_namespace.path
    raise unless path_head

    name_head = TypeName.new(name: path_head, namespace: Namespace.empty)
 
    absolute_head = context.find do |namespace|
      # @type break: TypeName
      full_name = name_head.with_prefix(namespace)
      has_name?(full_name) and break full_name
    end

    case absolute_head
    when TypeName
      has_name?(Namespace.new(path: absolute_head.to_namespace.path.push(*path_tail), absolute: true).to_type_name)
    when Namespace
      # This cannot happen because the `context.find` doesn't return a Namespace.
      raise
    end
  end
end
try_cache(query) click to toggle source 
 
               # File rbs-2.1.0/lib/rbs/type_name_resolver.rb, line 24
def try_cache(query)
  cache.fetch(query) do
    result = yield
    cache[query] = result
  end
end