Documentation for Ruby 4.0

🔍

No recent searches

☰

Pages

COPYING
COPYING.ja
LEGAL
NEWS
- NEWS-1.8.7
- NEWS-1.9.1
- NEWS-1.9.2
- NEWS-1.9.3
- NEWS-2.0.0
- NEWS-2.1.0
- NEWS-2.2.0
- NEWS-2.3.0
- NEWS-2.4.0
- NEWS-2.5.0
- NEWS-2.6.0
- NEWS-2.7.0
- NEWS-3.0.0
- NEWS-3.1.0
- NEWS-3.2.0
- NEWS-3.3.0
- NEWS-3.4.0
README.ja
README
contributing
distribution
- windows
extension.ja
extension
index
jit
- yjit
- zjit
language
maintainers
optparse
security
- command_injection
- security
standard_library
syntax

Class and Module Index

ARGF
Addrinfo
ArgumentError
Array
BasicObject
BasicSocket
BigDecimal
Binding
Bundler
CGI
- Escape
- EscapeExt
Class
ClosedQueueError
Comparable
Complex
Continuation
CoreExtensions
- TCPSocketExt
  - Initializer
Coverage
Data
Date
- Error
DateTime
Delegator
DidYouMean
- ClassNameChecker
  - ClassName
- Correctable
- Formatter
- Jaro
- JaroWinkler
- KeyErrorChecker
- MethodNameChecker
- NameErrorCheckers
- NullChecker
- PatternKeyNameChecker
- PlainFormatter
- RequirePathChecker
- SpellChecker
- TreeSpellChecker
- VariableNameChecker
- VerboseFormatter
Digest
- Base
- Class
- Instance
- MD5
- RMD160
- SHA1
- SHA2
- SHA256
- SHA384
- SHA512
Dir
ENV
EOFError
ERB
- DefMethod
- Escape
- Util
Encoding
EncodingError
English
Enumerable
Enumerator
- ArithmeticSequence
- Chain
- Generator
- Lazy
- Producer
- Product
- Yielder
Errno
ErrorHighlight
- CoreExt
- DefaultFormatter
- Spotter
  - NonAscii
Etc
- Group
- Passwd
Exception
FalseClass
Fcntl
Fiber
- Scheduler
FiberError
File
- Constants
- Stat
FileTest
FileUtils
- DryRun
- NoWrite
- Verbose
Find
Float
FloatDomainError
Forwardable
FrozenError
GC
Gem
- AvailableSet
- BasicSpecification
- BundlerVersionFinder
- CIDetector
- Command
- CommandLineError
- CommandManager
- Commands
  - BuildCommand
  - CertCommand
  - CheckCommand
  - CleanupCommand
  - ContentsCommand
  - DependencyCommand
  - EnvironmentCommand
  - ExecCommand
  - FetchCommand
  - GenerateIndexCommand
    RubygemsTrampoline
  - HelpCommand
  - InfoCommand
  - InstallCommand
  - ListCommand
  - LockCommand
  - MirrorCommand
  - OpenCommand
  - OutdatedCommand
  - OwnerCommand
  - PristineCommand
  - PushCommand
  - RdocCommand
  - RebuildCommand
  - SearchCommand
  - ServerCommand
  - SetupCommand
    MakeDirs
  - SigninCommand
  - SignoutCommand
  - SourcesCommand
  - SpecificationCommand
  - StaleCommand
  - UninstallCommand
  - UnpackCommand
  - UpdateCommand
  - WhichCommand
  - YankCommand
- ConfigFile
- ConflictError
- ConsoleUI
- DefaultUserInteraction
- Dependency
- DependencyError
- DependencyInstaller
- DependencyList
- DependencyRemovalException
- DependencyResolutionError
- Deprecate
- Doctor
- DocumentError
- EndOfYAMLException
- ErrorReason
- Exception
- Ext
  - BuildError
  - Builder
    NoMakefileError
  - CargoBuilder
    DylibNotFoundError
    LinkFlagConverter
  - CmakeBuilder
  - ConfigureBuilder
  - ExtConfBuilder
  - RakeBuilder
- FilePermissionError
- FormatException
- GemNotFoundException
- GemNotInHomeException
- GemRunner
- GemcutterUtilities
  - WebauthnListener
    BadRequestResponse
    MethodNotAllowedResponse
    NoContentResponse
    NotFoundResponse
    OkResponse
    Response
    SocketResponder
  - WebauthnPoller
- GemspecHelpers
- ImpossibleDependenciesError
- InstallError
- InstallUpdateOptions
- Installer
  - FakePackage
- InstallerUninstallerUtils
- InvalidSpecificationException
- Licenses
- LoadError
- LocalRemoteOptions
- MissingSpecError
- MissingSpecVersionError
- NameTuple
- NoAliasYAMLTree
- OperationNotSupportedError
- Package
  - DigestIO
  - Error
  - FormatError
  - NonSeekableIO
  - Old
  - PathError
  - SymlinkError
  - TarHeader
  - TarInvalidError
  - TarReader
    Entry
  - TarWriter
    BoundedStream
    FileOverflow
    RestrictedStream
  - TooLongFileName
- PackageTask
- PathSupport
- Platform
- PlatformMismatch
- QueryUtils
- RemoteError
- RemoteFetcher
  - FetchError
  - UnknownHostError
- RemoteInstallationCancelled
- RemoteInstallationSkipped
- RemoteSourceException
- RequestSet
  - GemDependencyAPI
  - Lockfile
    ParseError
    Parser
    Tokenizer
- Requirement
  - BadRequirementError
- Resolver
  - APISet
    GemParser
  - APISpecification
  - ActivationRequest
  - BestSet
  - ComposedSet
  - Conflict
  - CurrentSet
  - DependencyRequest
  - GitSet
  - GitSpecification
  - IndexSet
  - IndexSpecification
  - InstalledSpecification
  - InstallerSet
  - LocalSpecification
  - LockSet
  - LockSpecification
  - RequirementList
  - Set
  - SourceSet
  - SpecSpecification
  - Specification
  - Stats
  - VendorSet
  - VendorSpecification
- RubyVersionMismatch
- RuntimeRequirementNotMetError
- S3URISigner
  - ConfigurationError
  - InstanceProfileError
- SafeMarshal
  - Elements
    Array
    Bignum
    Element
    False
    Float
    Hash
    HashWithDefaultValue
    Integer
    Nil
    Object
    ObjectLink
    String
    Symbol
    SymbolLink
    True
    UserClass
    UserDefined
    UserMarshal
    WithIvars
  - Reader
    DataTooShortError
    EOFError
    Error
    NegativeLengthError
    NotImplementedError
    UnconsumedBytesError
    UnsupportedVersionError
  - Visitors
    StreamPrinter
    ToRuby
    Error
    FormatError
    MethodCallError
    RationalCompat
    TimeTooLargeError
    UnpermittedClassError
    UnpermittedIvarError
    UnpermittedSymbolError
    UnsupportedError
    Visitor
- SafeYAML
- Security
  - Exception
  - Policy
  - Signer
  - TrustDir
- SecurityOption
- SilentUI
  - NullIO
- Source
  - Git
  - Installed
  - Local
  - Lock
  - SpecificFile
  - Vendor
- SourceFetchProblem
- SourceList
- SpecFetcher
- SpecificGemNotFoundException
- Specification
- SpecificationPolicy
- SpecificationRecord
- StreamUI
- StubSpecification
- SystemExitException
- TargetRbConfig
- Text
- UninstallError
- Uninstaller
- UnknownCommandError
- UnknownCommandSpellChecker
- UnsatisfiableDependencyError
- UpdateSuggestion
- Uri
- UriFormatter
- UserInteraction
- Util
- Validator
- VerificationError
- Version
- VersionOption
- WebauthnVerificationError
- YAMLSerializer
Hash
IO
- Buffer
  - AccessError
  - AllocationError
  - InvalidatedError
  - LockedError
  - MaskError
- EAGAINWaitReadable
- EAGAINWaitWritable
- EINPROGRESSWaitReadable
- EINPROGRESSWaitWritable
- EWOULDBLOCKWaitReadable
- EWOULDBLOCKWaitWritable
- TimeoutError
- WaitReadable
- WaitWritable
IOError
IPAddr
- AddressFamilyError
- Error
- InvalidAddressError
- InvalidPrefixError
IPSocket
IndexError
Integer
Interrupt
JSON
- Coder
- Ext
  - Generator
    State
  - Parser
  - ParserConfig
- GeneratorError
- GenericObject
- JSONError
- NestingError
- ParserError
Kernel
KeyError
LoadError
LocalJumpError
MakeMakefile
Marshal
MatchData
Math
- DomainError
Method
Module
Monitor
MonitorMixin
- ConditionVariable
NameError
Net
- HTTP
  - Copy
  - Delete
  - Get
  - Head
  - Lock
  - Mkcol
  - Move
  - Options
  - Patch
  - Post
  - Propfind
  - Proppatch
  - Put
  - Trace
  - Unlock
- HTTPAccepted
- HTTPAlreadyReported
- HTTPBadGateway
- HTTPBadRequest
- HTTPClientError
- HTTPConflict
- HTTPContinue
- HTTPCreated
- HTTPEarlyHints
- HTTPExpectationFailed
- HTTPFailedDependency
- HTTPForbidden
- HTTPFound
- HTTPGatewayTimeOut
- HTTPGatewayTimeout
- HTTPGenericRequest
- HTTPGone
- HTTPHeader
- HTTPIMUsed
- HTTPInformation
- HTTPInsufficientStorage
- HTTPInternalServerError
- HTTPLengthRequired
- HTTPLocked
- HTTPLoopDetected
- HTTPMethodNotAllowed
- HTTPMisdirectedRequest
- HTTPMovedPermanently
- HTTPMovedTemporarily
- HTTPMultiStatus
- HTTPMultipleChoice
- HTTPMultipleChoices
- HTTPNetworkAuthenticationRequired
- HTTPNoContent
- HTTPNonAuthoritativeInformation
- HTTPNotAcceptable
- HTTPNotExtended
- HTTPNotFound
- HTTPNotImplemented
- HTTPNotModified
- HTTPOK
- HTTPPartialContent
- HTTPPayloadTooLarge
- HTTPPaymentRequired
- HTTPPermanentRedirect
- HTTPPreconditionFailed
- HTTPPreconditionRequired
- HTTPProcessing
- HTTPProxyAuthenticationRequired
- HTTPRangeNotSatisfiable
- HTTPRedirection
- HTTPRequest
- HTTPRequestEntityTooLarge
- HTTPRequestHeaderFieldsTooLarge
- HTTPRequestTimeOut
- HTTPRequestTimeout
- HTTPRequestURITooLong
- HTTPRequestedRangeNotSatisfiable
- HTTPResetContent
- HTTPResponse
- HTTPSeeOther
- HTTPServerError
- HTTPServiceUnavailable
- HTTPSession
- HTTPSuccess
- HTTPSwitchProtocol
- HTTPTemporaryRedirect
- HTTPTooManyRequests
- HTTPURITooLong
- HTTPUnauthorized
- HTTPUnavailableForLegalReasons
- HTTPUnknownResponse
- HTTPUnprocessableEntity
- HTTPUnsupportedMediaType
- HTTPUpgradeRequired
- HTTPUseProxy
- HTTPVariantAlsoNegotiates
- HTTPVersionNotSupported
- OpenTimeout
- ReadTimeout
- WriteAdapter
- WriteTimeout
NilClass
NoMatchingPatternError
NoMatchingPatternKeyError
NoMemoryError
NoMethodError
NotImplementedError
Numeric
Object
ObjectSpace
- InternalObjectWrapper
- WeakKeyMap
- WeakMap
Open3
OpenSSL
- ASN1
  - ASN1Data
  - ASN1Error
  - Constructive
  - ObjectId
  - Primitive
- BN
- BNError
- Buffering
  - Buffer
- Cipher
  - AuthTagError
  - Cipher
  - CipherError
- Config
- ConfigError
- Digest
  - DigestError
- Engine
  - EngineError
- HMAC
- HMACError
- KDF
  - KDFError
- Marshal
  - ClassMethods
- Netscape
  - SPKI
  - SPKIError
- OCSP
  - BasicResponse
  - CertificateId
  - OCSPError
  - Request
  - Response
  - SingleResponse
- OpenSSLError
- PKCS12
  - PKCS12Error
- PKCS5
- PKCS7
  - PKCS7Error
  - RecipientInfo
  - SignerInfo
- PKey
  - DH
  - DSA
  - EC
    Group
    Error
    Point
    Error
  - PKey
  - PKeyError
  - RSA
  - RSAError
- Random
  - RandomError
- SSL
  - SSLContext
  - SSLError
  - SSLErrorWaitReadable
  - SSLErrorWaitWritable
  - SSLServer
  - SSLSocket
  - Session
    SessionError
  - SocketForwarder
- Timestamp
  - Factory
  - Request
  - Response
  - TimestampError
  - TokenInfo
- X509
  - Attribute
  - AttributeError
  - CRL
  - CRLError
  - Certificate
  - CertificateError
  - Extension
    AuthorityInfoAccess
    AuthorityKeyIdentifier
    CRLDistributionPoints
    Helpers
    SubjectKeyIdentifier
  - ExtensionError
  - ExtensionFactory
  - Name
    RFC2253DN
  - NameError
  - Request
  - RequestError
  - Revoked
  - RevokedError
  - Store
  - StoreContext
  - StoreError
OpenStruct
OpenURI
- HTTPError
- HTTPRedirect
- Meta
- OpenRead
- TooManyRedirects
OptionParser
- AC
- Acceptables
- AmbiguousArgument
- AmbiguousOption
- Arguable
- CompletingHash
- Completion
- InvalidArgument
- InvalidOption
- List
- MissingArgument
- NeedlessArgument
- OptionMap
- ParseError
- Switch
  - NoArgument
  - OptionalArgument
  - PlacedArgument
  - RequiredArgument
PP
- PPMethods
PTY
- ChildExited
Pathname
PrettyPrint
- SingleLine
Prism
- ASCIISource
- AliasGlobalVariableNode
- AliasMethodNode
- AlternationPatternNode
- AndNode
- ArgumentsNode
- ArgumentsNodeFlags
- ArrayNode
- ArrayNodeFlags
- ArrayPatternNode
- AssocNode
- AssocSplatNode
- BackReferenceReadNode
- BasicVisitor
- BeginNode
- BlockArgumentNode
- BlockLocalVariableNode
- BlockNode
- BlockParameterNode
- BlockParametersNode
- BreakNode
- CallAndWriteNode
- CallNode
- CallNodeFlags
- CallOperatorWriteNode
- CallOrWriteNode
- CallTargetNode
- CapturePatternNode
- CaseMatchNode
- CaseNode
- ClassNode
- ClassVariableAndWriteNode
- ClassVariableOperatorWriteNode
- ClassVariableOrWriteNode
- ClassVariableReadNode
- ClassVariableTargetNode
- ClassVariableWriteNode
- CodeUnitsCache
- Comment
- Compiler
- ConstantAndWriteNode
- ConstantOperatorWriteNode
- ConstantOrWriteNode
- ConstantPathAndWriteNode
- ConstantPathNode
  - DynamicPartsInConstantPathError
  - MissingNodesInConstantPathError
- ConstantPathOperatorWriteNode
- ConstantPathOrWriteNode
- ConstantPathTargetNode
- ConstantPathWriteNode
- ConstantReadNode
- ConstantTargetNode
- ConstantWriteNode
- CurrentVersionError
- DSL
- DefNode
- DefinedNode
- DesugarCompiler
- Dispatcher
- DotVisitor
- ElseNode
- EmbDocComment
- EmbeddedStatementsNode
- EmbeddedVariableNode
- EncodingFlags
- EnsureNode
- FalseNode
- FindPatternNode
- FlipFlopNode
- FloatNode
- ForNode
- ForwardingArgumentsNode
- ForwardingParameterNode
- ForwardingSuperNode
- GlobalVariableAndWriteNode
- GlobalVariableOperatorWriteNode
- GlobalVariableOrWriteNode
- GlobalVariableReadNode
- GlobalVariableTargetNode
- GlobalVariableWriteNode
- HashNode
- HashPatternNode
- IfNode
- ImaginaryNode
- ImplicitNode
- ImplicitRestNode
- InNode
- IndexAndWriteNode
- IndexOperatorWriteNode
- IndexOrWriteNode
- IndexTargetNode
- InlineComment
- InspectVisitor
- InstanceVariableAndWriteNode
- InstanceVariableOperatorWriteNode
- InstanceVariableOrWriteNode
- InstanceVariableReadNode
- InstanceVariableTargetNode
- InstanceVariableWriteNode
- IntegerBaseFlags
- IntegerNode
- InterpolatedMatchLastLineNode
- InterpolatedRegularExpressionNode
- InterpolatedStringNode
- InterpolatedStringNodeFlags
- InterpolatedSymbolNode
- InterpolatedXStringNode
- ItLocalVariableReadNode
- ItParametersNode
- KeywordHashNode
- KeywordHashNodeFlags
- KeywordRestParameterNode
- LambdaNode
- LexCompat
  - EndContentToken
  - IdentToken
  - IgnoreStateToken
  - IgnoredNewlineToken
  - ParamToken
  - Result
  - Token
- LexResult
- LocalVariableAndWriteNode
- LocalVariableOperatorWriteNode
- LocalVariableOrWriteNode
- LocalVariableReadNode
- LocalVariableTargetNode
- LocalVariableWriteNode
- Location
- LoopFlags
- MagicComment
- MatchLastLineNode
- MatchPredicateNode
- MatchRequiredNode
- MatchWriteNode
- MissingNode
- ModuleNode
- MultiTargetNode
- MultiWriteNode
- MutationCompiler
- NextNode
- NilNode
- NoKeywordsParameterNode
- Node
- NodeFlags
- NumberedParametersNode
- NumberedReferenceReadNode
- OptionalKeywordParameterNode
- OptionalParameterNode
- OrNode
- Pack
  - Directive
  - Format
- ParameterFlags
- ParametersNode
- ParenthesesNode
- ParenthesesNodeFlags
- ParseError
- ParseLexResult
- ParseResult
  - Comments
  - Errors
  - Newlines
- ParseWarning
- Pattern
  - CompilationError
- PinnedExpressionNode
- PinnedVariableNode
- PostExecutionNode
- PreExecutionNode
- ProgramNode
- RangeFlags
- RangeNode
- RationalNode
- RedoNode
- Reflection
  - ConstantField
  - ConstantListField
  - Field
  - FlagsField
  - FloatField
  - IntegerField
  - LocationField
  - NodeField
  - NodeListField
  - OptionalConstantField
  - OptionalLocationField
  - OptionalNodeField
  - StringField
- RegularExpressionFlags
- RegularExpressionNode
- Relocation
  - CharacterColumnsField
  - CharacterOffsetsField
  - CodeUnitColumnsField
  - CodeUnitOffsetsField
  - ColumnsField
  - CommentsField
    Comment
  - Entry
    MissingValueError
  - FilepathField
  - LeadingCommentsField
  - LinesField
  - OffsetsField
  - Repository
    ConfigurationError
  - Source
  - SourceFilepath
  - SourceString
  - TrailingCommentsField
- RequiredKeywordParameterNode
- RequiredParameterNode
- RescueModifierNode
- RescueNode
- RestParameterNode
- Result
- RetryNode
- ReturnNode
- Scope
- SelfNode
- Serialize
- ShareableConstantNode
- ShareableConstantNodeFlags
- SingletonClassNode
- Source
- SourceEncodingNode
- SourceFileNode
- SourceLineNode
- SplatNode
- StatementsNode
- StringFlags
- StringNode
- StringQuery
- SuperNode
- SymbolFlags
- SymbolNode
- Token
- Translation
  - Parser
    Builder
    Compiler
    CompilationError
    Lexer
    PrismDiagnostic
  - Parser33
  - Parser34
  - Parser40
  - ParserCurrent
  - Ripper
    SexpBuilder
    SexpBuilderPP
  - RubyParser
    Compiler
- TrueNode
- UndefNode
- UnlessNode
- UntilNode
- Visitor
- WhenNode
- WhileNode
- XStringNode
- YieldNode
Proc
Process
- GID
- Status
- Sys
- Tms
- UID
Psych
- AliasesNotEnabled
- AnchorNotDefined
- BadAlias
- ClassLoader
  - Restricted
- Coder
- DisallowedClass
- Emitter
- Exception
- Handler
  - DumperOptions
- Handlers
  - Recorder
- JSON
  - Stream
  - TreeBuilder
- Nodes
  - Alias
  - Document
  - Mapping
  - Node
  - Scalar
  - Sequence
  - Stream
- Omap
- Parser
  - Mark
- ScalarScanner
- Set
- Stream
- Streaming
  - ClassMethods
- SyntaxError
- TreeBuilder
- Visitors
  - DepthFirst
  - Emitter
  - JSONTree
  - NoAliasRuby
  - RestrictedYAMLTree
  - ToRuby
  - Visitor
  - YAMLTree
Ractor
- ClosedError
- Error
- IsolationError
- MovedError
- MovedObject
- Port
- RemoteError
- UnsafeError
Random
- Formatter
Range
RangeError
Rational
RbConfig
RbConfig
Refinement
Regexp
- TimeoutError
RegexpError
Resolv
- DNS
- Hosts
- IPv4
- IPv6
- LOC
  - Alt
  - Coord
  - Size
- MDNS
- ResolvError
- ResolvTimeout
Ripper
- Filter
- Lexer
Ruby
- Box
RubyVM
- AbstractSyntaxTree
  - Location
  - Node
- InstructionSequence
- YJIT
RuntimeError
SOCKSSocket
ScriptError
SecureRandom
SecurityError
Set
- SubclassCompatible
  - ClassMethods
Shellwords
Signal
SignalException
SimpleDelegator
SingleForwardable
Singleton
Socket
- AncillaryData
- Constants
- Ifaddr
- Option
- ResolutionError
- UDPSource
SocketError
StandardError
StopIteration
String
StringIO
StringScanner
- Error
Struct
Symbol
SyntaxError
SyntaxSuggest
- AroundBlockScan
- BlockExpand
- Capture
  - BeforeAfterKeywordEnds
  - FallingIndentLines
- CaptureCodeContext
- CleanDocument
- Cli
- CodeBlock
- CodeFrontier
- CodeLine
- CodeSearch
- DisplayCodeWithLineNumbers
- DisplayInvalidBlocks
- Error
- ExplainSyntax
- GetParseErrors
- LeftRightLexCount
- LexAll
- LexValue
- MiniStringIO
- ParseBlocksFromIndentLine
- PathnameFromMessage
- PriorityEngulfQueue
- PriorityQueue
- RipperErrors
- ScanHistory
- UnvisitedLines
SystemCallError
SystemExit
SystemStackError
TCPServer
TCPSocket
TSort
- Cyclic
Tempfile
Thread
- Backtrace
  - Location
- ConditionVariable
- Mutex
- Queue
- SizedQueue
ThreadError
ThreadGroup
Time
Timeout
- Error
- ExitException
TracePoint
TrueClass
TypeError
UDPSocket
UNIXServer
UNIXSocket
URI
- BadURIError
- Error
- FTP
- File
- Generic
- HTTP
- HTTPS
- InvalidComponentError
- InvalidURIError
- LDAP
- LDAPS
- MailTo
- RFC2396_Parser
- RFC2396_REGEXP
  - PATTERN
- WS
- WSS
UnboundMethod
UncaughtThrowError
Warning
WeakRef
- RefError
Win32
- Registry
  - API
  - Error
  - PredefinedKey
- Resolv
  - Error
YAML
- DBM
- Store
ZJIT
ZeroDivisionError
Zlib
- BufError
- DataError
- Deflate
- Error
- GzipFile
  - CRCError
  - Error
  - LengthError
  - NoFooter
- GzipReader
- GzipWriter
- InProgressError
- Inflate
- MemError
- NeedDict
- StreamEnd
- StreamError
- VersionError
- ZStream
fatal

Win32::
Registry::
Constants

module Win32::Registry::Constants

Ruby

Documentation
Official Website
Playground

Resources

GitHub
Issue Tracker
RubyGems

Community

X

Generated by RDoc 6.16.1 using the Aliki theme by Stan Lo