object

Documentation

Index

• Constants
• type Array
  • func (a *Array) Inspect() string
  • func (*Array) Type() ObjectType
• type Boolean
  • func (i *Boolean) HashKey() HashKey
  • func (i *Boolean) Inspect() string
  • func (*Boolean) Type() ObjectType
• type Builtin
  • func (*Builtin) Inspect() string
  • func (*Builtin) Type() ObjectType
• type BuiltinFunction
• type Environment
  • func NewEnclosedEnvironment(outer *Environment) *Environment
  • func NewEnvironment() *Environment
  • func (e *Environment) Get(key string) (Object, bool)
  • func (e *Environment) Set(key string, val Object) Object
• type Error
  • func (e *Error) Inspect() string
  • func (*Error) Type() ObjectType
• type Function
  • func (f *Function) Inspect() string
  • func (*Function) Type() ObjectType
• type Hash
  • func (h *Hash) Inspect() string
  • func (*Hash) Type() ObjectType
• type HashKey
• type HashPair
• type Hashable
• type Integer
  • func (i *Integer) HashKey() HashKey
  • func (i *Integer) Inspect() string
  • func (*Integer) Type() ObjectType
• type Null
  • func (*Null) Inspect() string
  • func (*Null) Type() ObjectType
• type Object
• type ObjectType
• type ReturnValue
  • func (rv *ReturnValue) Inspect() string
  • func (*ReturnValue) Type() ObjectType
• type String
  • func (s *String) HashKey() HashKey
  • func (s *String) Inspect() string
  • func (*String) Type() ObjectType

Constants

const (
	INTEGER_OBJ      = "INTEGER"
	BOOLEAN_OBJ      = "BOOLEAN"
	STRING_OBJ       = "STRING"
	NULL_OBJ         = "NULL"
	RETURN_VALUE_OBJ = "RETURN_VALUE"
	ERROR_OBJ        = "ERROR"
	FUNCTION_OBJ     = "FUNCTION"
	BUILTIN_OBJ      = "BUILTIN"
	ARRAY_OBJ        = "ARRAY"
	HASH_OBJ         = "HASH"
)

Types

type Array

type Array struct {
	Elements []Object
}

func (*Array) Inspect

func (a *Array) Inspect() string

func (*Array) Type

func (*Array) Type() ObjectType

type Boolean

type Boolean struct {
	Value bool
}

func (*Boolean) HashKey

func (i *Boolean) HashKey() HashKey

func (*Boolean) Inspect

func (i *Boolean) Inspect() string

func (*Boolean) Type

func (*Boolean) Type() ObjectType

type Builtin

type Builtin struct {
	Fn BuiltinFunction
}

func (*Builtin) Inspect

func (*Builtin) Inspect() string

func (*Builtin) Type

func (*Builtin) Type() ObjectType

type BuiltinFunction

type BuiltinFunction func(...Object) Object

type Environment

type Environment struct {
	// contains filtered or unexported fields
}

func NewEnclosedEnvironment

func NewEnclosedEnvironment(outer *Environment) *Environment

func NewEnvironment

func NewEnvironment() *Environment

func (*Environment) Get

func (e *Environment) Get(key string) (Object, bool)

func (*Environment) Set

func (e *Environment) Set(key string, val Object) Object

type Error

type Error struct {
	Msg string
}

func (*Error) Inspect

func (e *Error) Inspect() string

func (*Error) Type

func (*Error) Type() ObjectType

type Function

type Function struct {
	Parameters []*ast.Identifier
	Body       *ast.BlockStatement
	Env        *Environment
}

func (*Function) Inspect

func (f *Function) Inspect() string

func (*Function) Type

func (*Function) Type() ObjectType

type Hash

type Hash struct {
	Pairs map[HashKey]HashPair
}

func (*Hash) Inspect

func (h *Hash) Inspect() string

func (*Hash) Type

func (*Hash) Type() ObjectType

type HashKey

type HashKey struct {
	Type  ObjectType
	Value uint64
}

type HashPair

type HashPair struct {
	Key   Object
	Value Object
}

type Hashable

type Hashable interface {
	// note: introduce caching on return values of the implementations
	HashKey() HashKey
}

type Integer

type Integer struct {
	Value int64
}

func (*Integer) HashKey

func (i *Integer) HashKey() HashKey

func (*Integer) Inspect

func (i *Integer) Inspect() string

func (*Integer) Type

func (*Integer) Type() ObjectType

type Null

type Null struct{}

func (*Null) Inspect

func (*Null) Inspect() string

func (*Null) Type

func (*Null) Type() ObjectType

type Object

type Object interface {
	Type() ObjectType
	Inspect() string
}

type ObjectType

type ObjectType string

type ReturnValue

type ReturnValue struct {
	Value Object
}

func (*ReturnValue) Inspect

func (rv *ReturnValue) Inspect() string

func (*ReturnValue) Type

func (*ReturnValue) Type() ObjectType

type String

type String struct {
	Value string
}

func (*String) HashKey

func (s *String) HashKey() HashKey

func (*String) Inspect

func (s *String) Inspect() string

func (*String) Type

func (*String) Type() ObjectType