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commands	[ DIR ]	drwxr-xr-x
core_ext	[ DIR ]	drwxr-xr-x
ext	[ DIR ]	drwxr-xr-x
package	[ DIR ]	drwxr-xr-x
request	[ DIR ]	drwxr-xr-x
request_set	[ DIR ]	drwxr-xr-x
resolver	[ DIR ]	drwxr-xr-x
security	[ DIR ]	drwxr-xr-x
source	[ DIR ]	drwxr-xr-x
ssl_certs	[ DIR ]	drwxr-xr-x
util	[ DIR ]	drwxr-xr-x
available_set.rb	3.02 KB	-rw-r--r--
basic_specification.rb	7.36 KB	-rw-r--r--
bundler_version_finder.rb	2.69 KB	-rw-r--r--
command.rb	13.98 KB	-rw-r--r--
command_manager.rb	4.77 KB	-rw-r--r--
compatibility.rb	1.66 KB	-rw-r--r--
config_file.rb	12.51 KB	-rw-r--r--
defaults.rb	4.46 KB	-rw-r--r--
dependency.rb	8.38 KB	-rw-r--r--
dependency_installer.rb	14.17 KB	-rw-r--r--
dependency_list.rb	5.55 KB	-rw-r--r--
deprecate.rb	1.73 KB	-rw-r--r--
doctor.rb	3.06 KB	-rw-r--r--
errors.rb	4.62 KB	-rw-r--r--
exceptions.rb	6.39 KB	-rw-r--r--
ext.rb	461 B	-rw-r--r--
gem_runner.rb	2.18 KB	-rw-r--r--
gemcutter_utilities.rb	4.37 KB	-rw-r--r--
indexer.rb	11.06 KB	-rw-r--r--
install_default_message.rb	337 B	-rw-r--r--
install_message.rb	311 B	-rw-r--r--
install_update_options.rb	6.89 KB	-rw-r--r--
installer.rb	25.11 KB	-rw-r--r--
installer_test_case.rb	4.41 KB	-rw-r--r--
local_remote_options.rb	3.4 KB	-rw-r--r--
mock_gem_ui.rb	1.38 KB	-rw-r--r--
name_tuple.rb	2.41 KB	-rw-r--r--
package.rb	16.47 KB	-rw-r--r--
package_task.rb	3.8 KB	-rw-r--r--
path_support.rb	1.72 KB	-rw-r--r--
platform.rb	6.25 KB	-rw-r--r--
psych_additions.rb	300 B	-rw-r--r--
psych_tree.rb	793 B	-rw-r--r--
rdoc.rb	7.74 KB	-rw-r--r--
remote_fetcher.rb	11.67 KB	-rw-r--r--
request.rb	8.66 KB	-rw-r--r--
request_set.rb	10.77 KB	-rw-r--r--
requirement.rb	6.59 KB	-rw-r--r--
resolver.rb	9.53 KB	-rw-r--r--
safe_yaml.rb	1.15 KB	-rw-r--r--
security.rb	21.13 KB	-rw-r--r--
security_option.rb	1.06 KB	-rw-r--r--
server.rb	22.72 KB	-rw-r--r--
source.rb	5.42 KB	-rw-r--r--
source_list.rb	2.53 KB	-rw-r--r--
source_local.rb	275 B	-rw-r--r--
source_specific_file.rb	272 B	-rw-r--r--
spec_fetcher.rb	6.47 KB	-rw-r--r--
specification.rb	82.56 KB	-rw-r--r--
stub_specification.rb	4.86 KB	-rw-r--r--
syck_hack.rb	2.12 KB	-rw-r--r--
test_case.rb	40.33 KB	-rw-r--r--
test_utilities.rb	8.63 KB	-rw-r--r--
text.rb	1.88 KB	-rw-r--r--
uninstaller.rb	8.74 KB	-rw-r--r--
uri_formatter.rb	792 B	-rw-r--r--
user_interaction.rb	14.54 KB	-rw-r--r--
util.rb	2.57 KB	-rw-r--r--
validator.rb	4.23 KB	-rw-r--r--
version.rb	11.97 KB	-rw-r--r--
version_option.rb	2.03 KB	-rw-r--r--

Code Editor : requirement.rb

# frozen_string_literal: true
require "rubygems/version"
require "rubygems/deprecate"

# If we're being loaded after yaml was already required, then
# load our yaml + workarounds now.
Gem.load_yaml if defined? ::YAML

##
# A Requirement is a set of one or more version restrictions. It supports a
# few (<tt>=, !=, >, <, >=, <=, ~></tt>) different restriction operators.
#
# See Gem::Version for a description on how versions and requirements work
# together in RubyGems.

class Gem::Requirement
  OPS = { #:nodoc:
    "="  =>  lambda { |v, r| v == r },
    "!=" =>  lambda { |v, r| v != r },
    ">"  =>  lambda { |v, r| v >  r },
    "<"  =>  lambda { |v, r| v <  r },
    ">=" =>  lambda { |v, r| v >= r },
    "<=" =>  lambda { |v, r| v <= r },
    "~>" =>  lambda { |v, r| v >= r && v.release < r.bump }
  }

SOURCE_SET_REQUIREMENT = Struct.new(:for_lockfile).new "!" # :nodoc:

quoted  = OPS.keys.map { |k| Regexp.quote k }.join "|"
  PATTERN_RAW = "\\s*(#{quoted})?\\s*(#{Gem::Version::VERSION_PATTERN})\\s*" # :nodoc:

##
  # A regular expression that matches a requirement

PATTERN = /\A#{PATTERN_RAW}\z/

##
  # The default requirement matches any version

DefaultRequirement = [">=", Gem::Version.new(0)]

##
  # Raised when a bad requirement is encountered

class BadRequirementError < ArgumentError; end

##
  # Factory method to create a Gem::Requirement object.  Input may be
  # a Version, a String, or nil.  Intended to simplify client code.
  #
  # If the input is "weird", the default version requirement is
  # returned.

def self.create *inputs
    return new inputs if inputs.length > 1

input = inputs.shift

case input
    when Gem::Requirement then
      input
    when Gem::Version, Array then
      new input
    when '!' then
      source_set
    else
      if input.respond_to? :to_str then
        new [input.to_str]
      else
        default
      end
    end
  end

##
  # A default "version requirement" can surely _only_ be '>= 0'.

def self.default
    new '>= 0'
  end

###
  # A source set requirement, used for Gemfiles and lockfiles

def self.source_set # :nodoc:
    SOURCE_SET_REQUIREMENT
  end

##
  # Parse +obj+, returning an <tt>[op, version]</tt> pair. +obj+ can
  # be a String or a Gem::Version.
  #
  # If +obj+ is a String, it can be either a full requirement
  # specification, like <tt>">= 1.2"</tt>, or a simple version number,
  # like <tt>"1.2"</tt>.
  #
  #     parse("> 1.0")                 # => [">", Gem::Version.new("1.0")]
  #     parse("1.0")                   # => ["=", Gem::Version.new("1.0")]
  #     parse(Gem::Version.new("1.0")) # => ["=,  Gem::Version.new("1.0")]

def self.parse obj
    return ["=", obj] if Gem::Version === obj

unless PATTERN =~ obj.to_s
      raise BadRequirementError, "Illformed requirement [#{obj.inspect}]"
    end

if $1 == ">=" && $2 == "0"
      DefaultRequirement
    else
      [$1 || "=", Gem::Version.new($2)]
    end
  end

##
  # An array of requirement pairs. The first element of the pair is
  # the op, and the second is the Gem::Version.

attr_reader :requirements #:nodoc:

##
  # Constructs a requirement from +requirements+. Requirements can be
  # Strings, Gem::Versions, or Arrays of those. +nil+ and duplicate
  # requirements are ignored. An empty set of +requirements+ is the
  # same as <tt>">= 0"</tt>.

def initialize *requirements
    requirements = requirements.flatten
    requirements.compact!
    requirements.uniq!

if requirements.empty?
      @requirements = [DefaultRequirement]
    else
      @requirements = requirements.map! { |r| self.class.parse r }
    end
  end

##
  # Concatenates the +new+ requirements onto this requirement.

def concat new
    new = new.flatten
    new.compact!
    new.uniq!
    new = new.map { |r| self.class.parse r }

@requirements.concat new
  end

##
  # Formats this requirement for use in a Gem::RequestSet::Lockfile.

def for_lockfile # :nodoc:
    return if [DefaultRequirement] == @requirements

list = requirements.sort_by { |_, version|
      version
    }.map { |op, version|
      "#{op} #{version}"
    }.uniq

" (#{list.join ', '})"
  end

##
  # true if this gem has no requirements.

def none?
    if @requirements.size == 1
      @requirements[0] == DefaultRequirement
    else
      false
    end
  end

##
  # true if the requirement is for only an exact version

def exact?
    return false unless @requirements.size == 1
    @requirements[0][0] == "="
  end

def as_list # :nodoc:
    requirements.map { |op, version| "#{op} #{version}" }.sort
  end

def hash # :nodoc:
    requirements.sort.hash
  end

def marshal_dump # :nodoc:
    fix_syck_default_key_in_requirements

[@requirements]
  end

def marshal_load array # :nodoc:
    @requirements = array[0]

fix_syck_default_key_in_requirements
  end

def yaml_initialize(tag, vals) # :nodoc:
    vals.each do |ivar, val|
      instance_variable_set "@#{ivar}", val
    end

Gem.load_yaml
    fix_syck_default_key_in_requirements
  end

def init_with coder # :nodoc:
    yaml_initialize coder.tag, coder.map
  end

def to_yaml_properties # :nodoc:
    ["@requirements"]
  end

def encode_with coder # :nodoc:
    coder.add 'requirements', @requirements
  end

##
  # A requirement is a prerelease if any of the versions inside of it
  # are prereleases

def prerelease?
    requirements.any? { |r| r.last.prerelease? }
  end

def pretty_print q # :nodoc:
    q.group 1, 'Gem::Requirement.new(', ')' do
      q.pp as_list
    end
  end

##
  # True if +version+ satisfies this Requirement.

def satisfied_by? version
    raise ArgumentError, "Need a Gem::Version: #{version.inspect}" unless
      Gem::Version === version
    # #28965: syck has a bug with unquoted '=' YAML.loading as YAML::DefaultKey
    requirements.all? { |op, rv| (OPS[op] || OPS["="]).call version, rv }
  end

alias :=== :satisfied_by?
  alias :=~ :satisfied_by?

##
  # True if the requirement will not always match the latest version.

def specific?
    return true if @requirements.length > 1 # GIGO, > 1, > 2 is silly

not %w[> >=].include? @requirements.first.first # grab the operator
  end

def to_s # :nodoc:
    as_list.join ", "
  end

def == other # :nodoc:
    Gem::Requirement === other and to_s == other.to_s
  end

private

def fix_syck_default_key_in_requirements # :nodoc:
    Gem.load_yaml

# Fixup the Syck DefaultKey bug
    @requirements.each do |r|
      if r[0].kind_of? Gem::SyckDefaultKey
        r[0] = "="
      end
    end
  end
end

class Gem::Version
  # This is needed for compatibility with older yaml
  # gemspecs.

Requirement = Gem::Requirement # :nodoc:
end

${this.title}

Code Editor : requirement.rb