Sha256: a263c4c4c82b87047b9fc7e68d01acd9b9071cb9a1de7766d73f03e5b8f466c8
Contents?: true
Size: 1.78 KB
Versions: 30
Compression:
Stored size: 1.78 KB
Contents
module Steep module AST module Types class Union attr_reader :types attr_reader :location def initialize(types:, location: nil) @types = types @location = location end def self.build(types:, location: nil) types.flat_map do |type| if type.is_a?(Union) type.types else [type] end end.map do |type| case type when AST::Types::Any return AST::Types::Any.new(location: location) when AST::Types::Top return AST::Types::Top.new(location: location) when AST::Types::Bot nil else type end end.compact.uniq.yield_self do |tys| if tys.length == 1 tys.first else new(types: tys.sort_by(&:hash), location: location) end end end def ==(other) other.is_a?(Union) && other.types == types end def hash self.class.hash ^ types.hash end alias eql? == def subst(s) self.class.build(location: location, types: types.map {|ty| ty.subst(s) }) end def to_s "(#{types.map(&:to_s).sort.join(" | ")})" end def free_variables types.each.with_object(Set.new) do |type, set| set.merge(type.free_variables) end end include Helper::ChildrenLevel def level [0] + level_of_children(types) end def with_location(new_location) self.class.new(types: types, location: new_location) end end end end end
Version data entries
30 entries across 30 versions & 1 rubygems