ruby/lib/rubygems/resolver/index_specification.rb

102 строки
2.4 KiB
Ruby

# frozen_string_literal: true
##
# Represents a possible Specification object returned from IndexSet. Used to
# delay needed to download full Specification objects when only the +name+
# and +version+ are needed.
class Gem::Resolver::IndexSpecification < Gem::Resolver::Specification
##
# An IndexSpecification is created from the index format described in `gem
# help generate_index`.
#
# The +set+ contains other specifications for this (URL) +source+.
#
# The +name+, +version+ and +platform+ are the name, version and platform of
# the gem.
def initialize(set, name, version, source, platform)
super()
@set = set
@name = name
@version = version
@source = source
@platform = Gem::Platform.new(platform.to_s)
@original_platform = platform.to_s
@spec = nil
end
##
# The dependencies of the gem for this specification
def dependencies
spec.dependencies
end
##
# The required_ruby_version constraint for this specification
#
# A fallback is included because when generated, some marshalled specs have it
# set to +nil+.
def required_ruby_version
spec.required_ruby_version || Gem::Requirement.default
end
##
# The required_rubygems_version constraint for this specification
#
# A fallback is included because the original version of the specification
# API didn't include that field, so some marshalled specs in the index have it
# set to +nil+.
def required_rubygems_version
spec.required_rubygems_version || Gem::Requirement.default
end
def ==(other)
self.class === other &&
@name == other.name &&
@version == other.version &&
@platform == other.platform
end
def hash
@name.hash ^ @version.hash ^ @platform.hash
end
def inspect # :nodoc:
"#<%s %s source %s>" % [self.class, full_name, @source]
end
def pretty_print(q) # :nodoc:
q.group 2, "[Index specification", "]" do
q.breakable
q.text full_name
unless Gem::Platform::RUBY == @platform
q.breakable
q.text @platform.to_s
end
q.breakable
q.text "source "
q.pp @source
end
end
##
# Fetches a Gem::Specification for this IndexSpecification from the #source.
def spec # :nodoc:
@spec ||=
begin
tuple = Gem::NameTuple.new @name, @version, @original_platform
@source.fetch_spec tuple
end
end
end