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Merge pull request #6039 from MikeMcQuaid/freeze-mutable-objects

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Freeze more mutable constants.
This commit is contained in:
Mike McQuaid 2019-04-20 08:26:07 +09:00 committed by GitHub
commit efa60e499d
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GPG Key ID: 4AEE18F83AFDEB23
29 changed files with 136 additions and 122 deletions
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4
Library/Homebrew/.rubocop.yml
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@ -125,6 +125,10 @@ Style/GuardClause:
Style/HashSyntax:
EnforcedStyle: ruby19_no_mixed_keys
# would rather freeze too much than too little
Style/MutableConstant:
EnforcedStyle: strict
# LineLength is low enough here to re-enable it.
Style/IfUnlessModifier:
Enabled: true

8
Library/Homebrew/cask/artifact/installer.rb
View File

@ -6,10 +6,10 @@ using HashValidator
module Cask
module Artifact
class Installer < AbstractArtifact
VALID_KEYS = Set.new [
:manual,
:script,
]
VALID_KEYS = Set.new([
:manual,
:script,
]).freeze
module ManualInstaller
def install_phase(**)

4
Library/Homebrew/cask/cmd/internal_stanza.rb
View File

@ -22,8 +22,8 @@ module Cask
#
ARTIFACTS =
DSL::ORDINARY_ARTIFACT_CLASSES.map(&:dsl_key) +
DSL::ARTIFACT_BLOCK_CLASSES.map(&:dsl_key)
(DSL::ORDINARY_ARTIFACT_CLASSES.map(&:dsl_key) +
DSL::ARTIFACT_BLOCK_CLASSES.map(&:dsl_key)).freeze
option "--table", :table, false
option "--quiet", :quiet, false

44
Library/Homebrew/cask/dsl.rb
View File

@ -46,34 +46,34 @@ module Cask
Artifact::Zap,
].freeze
ACTIVATABLE_ARTIFACT_CLASSES = ORDINARY_ARTIFACT_CLASSES - [Artifact::StageOnly]
ACTIVATABLE_ARTIFACT_CLASSES = (ORDINARY_ARTIFACT_CLASSES - [Artifact::StageOnly]).freeze
ARTIFACT_BLOCK_CLASSES = [
Artifact::PreflightBlock,
Artifact::PostflightBlock,
].freeze
DSL_METHODS = Set.new [
:appcast,
:artifacts,
:auto_updates,
:caveats,
:conflicts_with,
:container,
:depends_on,
:homepage,
:language,
:languages,
:name,
:sha256,
:staged_path,
:url,
:version,
:appdir,
*ORDINARY_ARTIFACT_CLASSES.map(&:dsl_key),
*ACTIVATABLE_ARTIFACT_CLASSES.map(&:dsl_key),
*ARTIFACT_BLOCK_CLASSES.flat_map { |klass| [klass.dsl_key, klass.uninstall_dsl_key] },
].freeze
DSL_METHODS = Set.new([
:appcast,
:artifacts,
:auto_updates,
:caveats,
:conflicts_with,
:container,
:depends_on,
:homepage,
:language,
:languages,
:name,
:sha256,
:staged_path,
:url,
:version,
:appdir,
*ORDINARY_ARTIFACT_CLASSES.map(&:dsl_key),
*ACTIVATABLE_ARTIFACT_CLASSES.map(&:dsl_key),
*ARTIFACT_BLOCK_CLASSES.flat_map { |klass| [klass.dsl_key, klass.uninstall_dsl_key] },
]).freeze
attr_reader :cask, :token

8
Library/Homebrew/cask/dsl/container.rb
View File

@ -3,10 +3,10 @@ require "unpack_strategy"
module Cask
class DSL
class Container
VALID_KEYS = Set.new [
:type,
:nested,
]
VALID_KEYS = Set.new([
:type,
:nested,
]).freeze
attr_accessor(*VALID_KEYS)
attr_accessor :pairs

16
Library/Homebrew/cask/dsl/depends_on.rb
View File

@ -3,14 +3,14 @@ require "rubygems"
module Cask
class DSL
class DependsOn < DelegateClass(Hash)
VALID_KEYS = Set.new [
:formula,
:cask,
:macos,
:arch,
:x11,
:java,
].freeze
VALID_KEYS = Set.new([
:formula,
:cask,
:macos,
:arch,
:x11,
:java,
]).freeze
VALID_ARCHES = {
intel: { type: :intel, bits: 64 },

2
Library/Homebrew/cleanup.rb
View File

@ -119,7 +119,7 @@ module Homebrew
class Cleanup
extend Predicable
PERIODIC_CLEAN_FILE = HOMEBREW_CACHE/".cleaned"
PERIODIC_CLEAN_FILE = (HOMEBREW_CACHE/".cleaned").freeze
attr_predicate :dry_run?, :scrub?
attr_reader :args, :days, :cache

4
Library/Homebrew/compilers.rb
View File

@ -8,8 +8,8 @@ module CompilerConstants
"llvm_clang" => :llvm_clang,
}.freeze
COMPILERS = COMPILER_SYMBOL_MAP.values +
GNU_GCC_VERSIONS.map { |n| "gcc-#{n}" }
COMPILERS = (COMPILER_SYMBOL_MAP.values +
GNU_GCC_VERSIONS.map { |n| "gcc-#{n}" }).freeze
end
class CompilerFailure

28
Library/Homebrew/config.rb
View File

@ -1,7 +1,7 @@
raise "HOMEBREW_BREW_FILE was not exported! Please call bin/brew directly!" unless ENV["HOMEBREW_BREW_FILE"]
# Path to `bin/brew` main executable in `HOMEBREW_PREFIX`
HOMEBREW_BREW_FILE = Pathname.new(ENV["HOMEBREW_BREW_FILE"])
HOMEBREW_BREW_FILE = Pathname.new(ENV["HOMEBREW_BREW_FILE"]).freeze
class MissingEnvironmentVariables < RuntimeError; end
@ -11,42 +11,46 @@ def get_env_or_raise(env)
ENV[env]
end
require "extend/git_repository"
# Where we link under
HOMEBREW_PREFIX = Pathname.new(get_env_or_raise("HOMEBREW_PREFIX"))
HOMEBREW_PREFIX = Pathname.new(get_env_or_raise("HOMEBREW_PREFIX")).freeze
# Where `.git` is found
HOMEBREW_REPOSITORY = Pathname.new(get_env_or_raise("HOMEBREW_REPOSITORY"))
.extend(GitRepositoryExtension)
.freeze
# Where we store most of Homebrew, taps, and various metadata
HOMEBREW_LIBRARY = Pathname.new(get_env_or_raise("HOMEBREW_LIBRARY"))
HOMEBREW_LIBRARY = Pathname.new(get_env_or_raise("HOMEBREW_LIBRARY")).freeze
# Where shim scripts for various build and SCM tools are stored
HOMEBREW_SHIMS_PATH = HOMEBREW_LIBRARY/"Homebrew/shims"
HOMEBREW_SHIMS_PATH = (HOMEBREW_LIBRARY/"Homebrew/shims").freeze
# Where we store symlinks to currently linked kegs
HOMEBREW_LINKED_KEGS = HOMEBREW_PREFIX/"var/homebrew/linked"
HOMEBREW_LINKED_KEGS = (HOMEBREW_PREFIX/"var/homebrew/linked").freeze
# Where we store symlinks to currently version-pinned kegs
HOMEBREW_PINNED_KEGS = HOMEBREW_PREFIX/"var/homebrew/pinned"
HOMEBREW_PINNED_KEGS = (HOMEBREW_PREFIX/"var/homebrew/pinned").freeze
# Where we store lock files
HOMEBREW_LOCKS = HOMEBREW_PREFIX/"var/homebrew/locks"
HOMEBREW_LOCKS = (HOMEBREW_PREFIX/"var/homebrew/locks").freeze
# Where we store built products
HOMEBREW_CELLAR = Pathname.new(get_env_or_raise("HOMEBREW_CELLAR"))
HOMEBREW_CELLAR = Pathname.new(get_env_or_raise("HOMEBREW_CELLAR")).freeze
# Where downloads (bottles, source tarballs, etc.) are cached
HOMEBREW_CACHE = Pathname.new(get_env_or_raise("HOMEBREW_CACHE"))
HOMEBREW_CACHE = Pathname.new(get_env_or_raise("HOMEBREW_CACHE")).freeze
# Where brews installed via URL are cached
HOMEBREW_CACHE_FORMULA = HOMEBREW_CACHE/"Formula"
HOMEBREW_CACHE_FORMULA = (HOMEBREW_CACHE/"Formula").freeze
# Where build, postinstall, and test logs of formulae are written to
HOMEBREW_LOGS = Pathname.new(get_env_or_raise("HOMEBREW_LOGS")).expand_path
HOMEBREW_LOGS = Pathname.new(get_env_or_raise("HOMEBREW_LOGS")).expand_path.freeze
# Must use `/tmp` instead of `TMPDIR` because long paths break Unix domain sockets
HOMEBREW_TEMP = begin
tmp = Pathname.new(get_env_or_raise("HOMEBREW_TEMP"))
tmp.mkpath unless tmp.exist?
tmp.realpath
end
end.freeze

2
Library/Homebrew/debrew.rb
View File

@ -4,7 +4,7 @@ require "debrew/irb"
module Debrew
extend Mutex_m
Ignorable = Module.new
Ignorable = Module.new.freeze
module Raise
def raise(*)

2
Library/Homebrew/dependency.rb
View File

@ -7,7 +7,7 @@ class Dependency
attr_reader :name, :tags, :env_proc, :option_names
DEFAULT_ENV_PROC = proc {}
DEFAULT_ENV_PROC = proc {}.freeze
def initialize(name, tags = [], env_proc = DEFAULT_ENV_PROC, option_names = [name])
raise ArgumentError, "Dependency must have a name!" unless name

6
Library/Homebrew/dev-cmd/man.rb
View File

@ -8,9 +8,9 @@ Dir.glob("#{HOMEBREW_LIBRARY_PATH}/{dev-,}cmd/*.rb").each { |cmd| require cmd }
module Homebrew
module_function
SOURCE_PATH = HOMEBREW_LIBRARY_PATH/"manpages"
TARGET_MAN_PATH = HOMEBREW_REPOSITORY/"manpages"
TARGET_DOC_PATH = HOMEBREW_REPOSITORY/"docs"
SOURCE_PATH = (HOMEBREW_LIBRARY_PATH/"manpages").freeze
TARGET_MAN_PATH = (HOMEBREW_REPOSITORY/"manpages").freeze
TARGET_DOC_PATH = (HOMEBREW_REPOSITORY/"docs").freeze
def man_args
Homebrew::CLI::Parser.new do

2
Library/Homebrew/extend/os/mac/keg.rb
View File

@ -1,4 +1,4 @@
class Keg
GENERIC_KEG_LINK_DIRECTORIES = remove_const :KEG_LINK_DIRECTORIES
GENERIC_KEG_LINK_DIRECTORIES = (remove_const :KEG_LINK_DIRECTORIES).freeze
KEG_LINK_DIRECTORIES = (GENERIC_KEG_LINK_DIRECTORIES + ["Frameworks"]).freeze
end

10
Library/Homebrew/global.rb
View File

@ -28,21 +28,17 @@ require "extend/ARGV"
require "messages"
require "system_command"
ARGV_WITHOUT_MONKEY_PATCHING = ARGV.dup
ARGV_WITHOUT_MONKEY_PATCHING = ARGV.dup.freeze
ARGV.extend(HomebrewArgvExtension)
HOMEBREW_PRODUCT = ENV["HOMEBREW_PRODUCT"]
HOMEBREW_VERSION = ENV["HOMEBREW_VERSION"]
HOMEBREW_WWW = "https://brew.sh".freeze
require "extend/git_repository"
HOMEBREW_REPOSITORY.extend(GitRepositoryExtension)
require "rbconfig"
RUBY_PATH = Pathname.new(RbConfig.ruby)
RUBY_BIN = RUBY_PATH.dirname
RUBY_PATH = Pathname.new(RbConfig.ruby).freeze
RUBY_BIN = RUBY_PATH.dirname.freeze
HOMEBREW_USER_AGENT_CURL = ENV["HOMEBREW_USER_AGENT_CURL"]
HOMEBREW_USER_AGENT_RUBY =

4
Library/Homebrew/keg.rb
View File

@ -77,9 +77,9 @@ class Keg
# Keep relatively in sync with
# https://github.com/Homebrew/install/blob/master/install
MUST_EXIST_DIRECTORIES = MUST_EXIST_SUBDIRECTORIES + [
MUST_EXIST_DIRECTORIES = (MUST_EXIST_SUBDIRECTORIES + [
HOMEBREW_CELLAR,
].uniq.sort.freeze
].sort.uniq).freeze
MUST_BE_WRITABLE_DIRECTORIES = (
%w[
etc/bash_completion.d lib/pkgconfig

2
Library/Homebrew/load_path.rb
View File

@ -1,6 +1,6 @@
require "pathname"
HOMEBREW_LIBRARY_PATH = Pathname(__dir__).realpath
HOMEBREW_LIBRARY_PATH = Pathname(__dir__).realpath.freeze
$LOAD_PATH.push(HOMEBREW_LIBRARY_PATH.to_s) unless $LOAD_PATH.include?(HOMEBREW_LIBRARY_PATH.to_s)

16
Library/Homebrew/metafiles.rb
View File

@ -1,13 +1,13 @@
module Metafiles
# https://github.com/github/markup#markups
EXTENSIONS = Set.new %w[
.adoc .asc .asciidoc .creole .html .markdown .md .mdown .mediawiki .mkdn
.org .pod .rdoc .rst .rtf .textile .txt .wiki
].freeze
BASENAMES = Set.new %w[
about authors changelog changes copying copyright history license licence
news notes notice readme todo
].freeze
EXTENSIONS = Set.new(%w[
.adoc .asc .asciidoc .creole .html .markdown .md .mdown .mediawiki .mkdn
.org .pod .rdoc .rst .rtf .textile .txt .wiki
]).freeze
BASENAMES = Set.new(%w[
about authors changelog changes copying copyright history license licence
news notes notice readme todo
]).freeze
module_function

6
Library/Homebrew/os/linux.rb
View File

@ -3,7 +3,11 @@ module OS
module Mac
module_function
::MacOS = self # rubocop:disable Naming/ConstantName
# rubocop:disable Naming/ConstantName
# rubocop:disable Style/MutableConstant
::MacOS = self
# rubocop:enable Naming/ConstantName
# rubocop:enable Style/MutableConstant
raise "Loaded OS::Linux on generic OS!" if ENV["HOMEBREW_TEST_GENERIC_OS"]

2
Library/Homebrew/os/linux/global.rb
View File

@ -3,5 +3,5 @@ module Homebrew
"/usr/local".freeze
else
"/home/linuxbrew/.linuxbrew".freeze
end
end.freeze
end

6
Library/Homebrew/os/mac.rb
View File

@ -8,7 +8,11 @@ module OS
module Mac
module_function
::MacOS = self # rubocop:disable Naming/ConstantName
# rubocop:disable Naming/ConstantName
# rubocop:disable Style/MutableConstant
::MacOS = self
# rubocop:enable Naming/ConstantName
# rubocop:enable Style/MutableConstant
raise "Loaded OS::Mac on generic OS!" if ENV["HOMEBREW_TEST_GENERIC_OS"]

2
Library/Homebrew/os/mac/xquartz.rb
View File

@ -1,6 +1,6 @@
module OS
module Mac
X11 = XQuartz = Module.new
X11 = XQuartz = Module.new # rubocop:disable Style/MutableConstant
module XQuartz
module_function

8
Library/Homebrew/rubocops/cask/homepage_matches_url.rb
View File

@ -19,11 +19,11 @@ module RuboCop
MSG_NO_MATCH = "`%{url}` does not match `%{full_url}`".freeze
MSG_MISSING = "`%{domain}` does not match `%{homepage}`, a comment has to be added " \
"above the `url` stanza. For details, see " + REFERENCE_URL
MSG_MISSING = ("`%{domain}` does not match `%{homepage}`, a comment has to be added " \
"above the `url` stanza. For details, see " + REFERENCE_URL).freeze
MSG_WRONG_FORMAT = "`%{comment}` does not match the expected comment format. " \
"For details, see " + REFERENCE_URL
MSG_WRONG_FORMAT = ("`%{comment}` does not match the expected comment format. " \
"For details, see " + REFERENCE_URL).freeze
MSG_UNNECESSARY = "The URL's domain `%{domain}` matches the homepage `%{homepage}`, " \
"the comment above the `url` stanza is unnecessary".freeze

2
Library/Homebrew/tap.rb
View File

@ -11,7 +11,7 @@ require "description_cache_store"
class Tap
extend Cachable
TAP_DIRECTORY = HOMEBREW_LIBRARY/"Taps"
TAP_DIRECTORY = (HOMEBREW_LIBRARY/"Taps").freeze
def self.fetch(*args)
case args.length

2
Library/Homebrew/tap_constants.rb
View File

@ -5,7 +5,7 @@ HOMEBREW_TAP_CASK_REGEX = %r{^([\w-]+)/([\w-]+)/([a-z0-9\-]+)$}.freeze
# match taps' directory paths, e.g. HOMEBREW_LIBRARY/Taps/someuser/sometap
HOMEBREW_TAP_DIR_REGEX = %r{#{Regexp.escape(HOMEBREW_LIBRARY)}/Taps/(?<user>[\w-]+)/(?<repo>[\w-]+)}.freeze
# match taps' formula paths, e.g. HOMEBREW_LIBRARY/Taps/someuser/sometap/someformula
HOMEBREW_TAP_PATH_REGEX = Regexp.new(HOMEBREW_TAP_DIR_REGEX.source + %r{(?:/.*)?$}.source)
HOMEBREW_TAP_PATH_REGEX = Regexp.new(HOMEBREW_TAP_DIR_REGEX.source + %r{(?:/.*)?$}.source).freeze
# match official taps' casks, e.g. homebrew/cask/somecask or homebrew/cask-versions/somecask
HOMEBREW_CASK_TAP_CASK_REGEX = %r{^(?:([Cc]askroom)/(cask|versions)|(homebrew)/(cask|cask-[\w-]+))/([\w+-.]+)$}.freeze
HOMEBREW_OFFICIAL_REPO_PREFIXES_REGEX = /^(home|linux)brew-/.freeze

4
Library/Homebrew/test/patching_spec.rb
View File

@ -5,8 +5,8 @@ describe "patching" do
TESTBALL_PATCHES_URL = "file://#{TEST_FIXTURE_DIR}/tarballs/testball-0.1-patches.tgz".freeze
PATCH_URL_A = "file://#{TEST_FIXTURE_DIR}/patches/noop-a.diff".freeze
PATCH_URL_B = "file://#{TEST_FIXTURE_DIR}/patches/noop-b.diff".freeze
PATCH_A_CONTENTS = File.read "#{TEST_FIXTURE_DIR}/patches/noop-a.diff"
PATCH_B_CONTENTS = File.read "#{TEST_FIXTURE_DIR}/patches/noop-b.diff"
PATCH_A_CONTENTS = File.read("#{TEST_FIXTURE_DIR}/patches/noop-a.diff").freeze
PATCH_B_CONTENTS = File.read("#{TEST_FIXTURE_DIR}/patches/noop-b.diff").freeze
APPLY_A = "noop-a.diff".freeze
APPLY_B = "noop-b.diff".freeze
APPLY_C = "noop-c.diff".freeze

32
Library/Homebrew/test/support/lib/config.rb
View File

@ -2,7 +2,7 @@ raise "HOMEBREW_BREW_FILE was not exported! Please call bin/brew directly!" unle
require "pathname"
HOMEBREW_BREW_FILE = Pathname.new(ENV["HOMEBREW_BREW_FILE"])
HOMEBREW_BREW_FILE = Pathname.new(ENV["HOMEBREW_BREW_FILE"]).freeze
TEST_TMPDIR = ENV.fetch("HOMEBREW_TEST_TMPDIR") do |k|
dir = Dir.mktmpdir("homebrew-tests-", ENV["HOMEBREW_TEMP"] || "/tmp")
@ -12,25 +12,27 @@ TEST_TMPDIR = ENV.fetch("HOMEBREW_TEST_TMPDIR") do |k|
FileUtils.remove_entry(dir) unless ENV["HOMEBREW_TEST_NO_EXIT_CLEANUP"]
end
ENV[k] = dir
end
end.freeze
# Paths pointing into the Homebrew code base that persist across test runs
HOMEBREW_SHIMS_PATH = HOMEBREW_LIBRARY_PATH.parent/"Homebrew/shims"
HOMEBREW_SHIMS_PATH = (HOMEBREW_LIBRARY_PATH.parent/"Homebrew/shims").freeze
require "extend/git_repository"
# Paths redirected to a temporary directory and wiped at the end of the test run
HOMEBREW_PREFIX = Pathname(TEST_TMPDIR)/"prefix"
HOMEBREW_REPOSITORY = HOMEBREW_PREFIX
HOMEBREW_LIBRARY = HOMEBREW_REPOSITORY/"Library"
HOMEBREW_CACHE = HOMEBREW_PREFIX.parent/"cache"
HOMEBREW_CACHE_FORMULA = HOMEBREW_PREFIX.parent/"formula_cache"
HOMEBREW_LINKED_KEGS = HOMEBREW_PREFIX.parent/"linked"
HOMEBREW_PINNED_KEGS = HOMEBREW_PREFIX.parent/"pinned"
HOMEBREW_LOCKS = HOMEBREW_PREFIX.parent/"locks"
HOMEBREW_CELLAR = HOMEBREW_PREFIX.parent/"cellar"
HOMEBREW_LOGS = HOMEBREW_PREFIX.parent/"logs"
HOMEBREW_TEMP = HOMEBREW_PREFIX.parent/"temp"
HOMEBREW_PREFIX = (Pathname(TEST_TMPDIR)/"prefix").freeze
HOMEBREW_REPOSITORY = HOMEBREW_PREFIX.dup.extend(GitRepositoryExtension).freeze
HOMEBREW_LIBRARY = (HOMEBREW_REPOSITORY/"Library").freeze
HOMEBREW_CACHE = (HOMEBREW_PREFIX.parent/"cache").freeze
HOMEBREW_CACHE_FORMULA = (HOMEBREW_PREFIX.parent/"formula_cache").freeze
HOMEBREW_LINKED_KEGS = (HOMEBREW_PREFIX.parent/"linked").freeze
HOMEBREW_PINNED_KEGS = (HOMEBREW_PREFIX.parent/"pinned").freeze
HOMEBREW_LOCKS = (HOMEBREW_PREFIX.parent/"locks").freeze
HOMEBREW_CELLAR = (HOMEBREW_PREFIX.parent/"cellar").freeze
HOMEBREW_LOGS = (HOMEBREW_PREFIX.parent/"logs").freeze
HOMEBREW_TEMP = (HOMEBREW_PREFIX.parent/"temp").freeze
TEST_FIXTURE_DIR = HOMEBREW_LIBRARY_PATH/"test/support/fixtures"
TEST_FIXTURE_DIR = (HOMEBREW_LIBRARY_PATH/"test/support/fixtures").freeze
TESTBALL_SHA256 = "91e3f7930c98d7ccfb288e115ed52d06b0e5bc16fec7dce8bdda86530027067b".freeze
TESTBALL_PATCHES_SHA256 = "799c2d551ac5c3a5759bea7796631a7906a6a24435b52261a317133a0bfb34d9".freeze

26
Library/Homebrew/unpack_strategy/dmg.rb
View File

@ -5,19 +5,19 @@ module UnpackStrategy
include UnpackStrategy
module Bom
DMG_METADATA = Set.new %w[
.background
.com.apple.timemachine.donotpresent
.com.apple.timemachine.supported
.DocumentRevisions-V100
.DS_Store
.fseventsd
.MobileBackups
.Spotlight-V100
.TemporaryItems
.Trashes
.VolumeIcon.icns
].freeze
DMG_METADATA = Set.new(%w[
.background
.com.apple.timemachine.donotpresent
.com.apple.timemachine.supported
.DocumentRevisions-V100
.DS_Store
.fseventsd
.MobileBackups
.Spotlight-V100
.TemporaryItems
.Trashes
.VolumeIcon.icns
]).freeze
private_constant :DMG_METADATA
refine Pathname do

4
Library/Homebrew/version.rb
View File

@ -52,7 +52,7 @@ class Version
end
end
NULL_TOKEN = NullToken.new
NULL_TOKEN = NullToken.new.freeze
class StringToken < Token
PATTERN = /[a-z]+[0-9]*/i.freeze
@ -189,7 +189,7 @@ class Version
PatchToken::PATTERN,
NumericToken::PATTERN,
StringToken::PATTERN,
)
).freeze
class FromURL < Version
def detected_from_url?

2
Library/Homebrew/version/null.rb
View File

@ -51,5 +51,5 @@ class Version
def inspect
"#<Version::NULL>".freeze
end
end.new
end.new.freeze
end