Deprecated - Crystal 1.21.0

Top Level Namespace
ArgumentError
Array
Atomic
- Flag
- Ordering
Base64
- Error
Benchmark
- BM
  - Job
  - Tms
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BigDecimal
BigFloat
BigInt
BigRational
BitArray
Bool
Box
Bytes
Channel
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Char
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Class
Colorize
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Comparable
Complex
Compress
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  - Error
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- Gzip
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  - Header
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- Zip
  - CompressionMethod
  - Error
  - File
    - Entry
  - FileInfo
  - Reader
    - Entry
  - Writer
    - Entry
- Zlib
  - Error
  - Reader
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Crypto
- Bcrypt
  - Error
  - Password
- Blowfish
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Crystal
- EventLoop
  - Epoll
  - Event
  - FileDescriptor
  - Polling
    - Arena
      - Entry
      - Index
    - Event
      - Type
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    - PollDescriptor
    - Waiters
  - Socket
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- Macros
  - Alias
  - AlignOf
  - And
  - Annotation
  - AnnotationDef
  - Arg
  - ArrayLiteral
  - Asm
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  - Assign
  - ASTNode
  - BinaryOp
  - Block
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  - Break
  - Call
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  - Cast
  - CharLiteral
  - ClassDef
  - ClassVar
  - ControlExpression
  - CStructOrUnionDef
  - Def
  - DoubleSplat
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  - ExceptionHandler
  - Expressions
  - Extend
  - ExternalVar
  - FunDef
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  - HashLiteral
  - If
  - ImplicitObj
  - Include
  - InstanceAlignOf
  - InstanceSizeOf
  - InstanceVar
  - IsA
  - LibDef
  - Macro
  - MacroExpression
  - MacroFor
  - MacroId
  - MacroIf
  - MacroLiteral
  - MacroVar
  - MacroVerbatim
  - MagicConstant
  - Metaclass
  - MetaVar
  - ModuleDef
  - MultiAssign
  - NamedArgument
  - NamedTupleLiteral
  - Next
  - NilableCast
  - NilLiteral
  - Nop
  - Not
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  - OffsetOf
  - Or
  - Out
  - Path
  - PointerOf
  - Primitive
  - ProcLiteral
  - ProcNotation
  - ProcPointer
  - RangeLiteral
  - ReadInstanceVar
  - RegexLiteral
  - Require
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  - RespondsTo
  - Return
  - Select
  - Self
  - SizeOf
  - Splat
  - StringInterpolation
  - StringLiteral
  - SymbolLiteral
  - TupleLiteral
  - TypeDeclaration
  - TypeDef
  - TypeNode
  - TypeOf
  - UnaryExpression
  - Underscore
  - UninitializedVar
  - Union
  - Var
  - VisibilityModifier
  - When
  - While
  - Yield
- SyntaxHighlighter
  - Colorize
  - HTML
  - TokenType
CSV
- Builder
  - Quoting
  - Row
- Error
- Lexer
- MalformedCSVError
- Parser
- Row
- Token
  - Kind
Deprecated
Deque
Digest
- Adler32
- ClassMethods
- CRC32
- FinalizedError
- MD5
- SHA1
- SHA256
- SHA512
Dir
DivisionByZeroError
ECR
Enum
- ValueConverter
Enumerable
- Chunk
  - Alone
  - Drop
- EmptyError
- NotFoundError
ENV
Errno
Exception
Experimental
Fiber
- ExecutionContext
File
- AccessDeniedError
- AlreadyExistsError
- BadExecutableError
- BadPatternError
- BraceStack
- Error
- Flags
- Info
- MatchOptions
- NotFoundError
- Permissions
- Type
FileUtils
Flags
Float
- Primitive
Float32
Float64
GC
- ProfStats
- Stats
Hash
HTML
HTTP
- Client
- CompressHandler
- Cookie
  - SameSite
- Cookies
- ErrorHandler
- FormData
  - Builder
  - Error
  - FileMetadata
  - Parser
  - Part
- Handler
  - HandlerProc
- Headers
- LogHandler
- Params
- Request
- Server
- StaticFileHandler
  - Direct