object

package
v0.0.0-...-a130a8b Latest Latest
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 Go to latest Published: Nov 15, 2022 License: MIT Imports: 7 Imported by: 0

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Index

Constants

View Source 
const (
	INTEGER_OBJ      = "INTEGER"
	BOOLEAN_OBJ      = "BOOLEAN"
	NULL_OBJ         = "NULL"
	RETURN_VALUE_OBJ = "RETURN_VALUE"
	ERROR_OBJ        = "ERROR"
	FUNCTION_OBJ     = "FUNCTION"
	STRING_OBJ       = "STRING"
	BUILTIN_OBJ      = "BUILTIN"
	ARRAY_OBJ        = "ARRAY"
	HASH_OBJ         = "HASH"
	// TODO: see if this ever gets printed, if so we should call it a `notaclass` or `NAC`
	STRUCT_OBJ = "STRUCT"
	METHOD_OBJ = "METHOD"
	LAZY_OBJ   = "LAZY"
)

Variables

View Source 
var (
	NULL  = &Null{}
	TRUE  = &Boolean{Value: true}
	FALSE = &Boolean{Value: false}
)

Functions

This section is empty.

Types

type Array 

type Array struct {
	Elements []Object
}

func (*Array) Inspect 

func (ao *Array) Inspect() string

func (*Array) Type 

func (ao *Array) Type() ObjectType

type Boolean 

type Boolean struct {
	Value bool
}

func (*Boolean) HashKey 

func (b *Boolean) HashKey() HashKey

func (*Boolean) Inspect 

func (b *Boolean) Inspect() string

func (*Boolean) Type 

func (b *Boolean) Type() ObjectType

type Builtin 

type Builtin struct {
	Fn BuiltinFunction
}

func (*Builtin) Inspect 

func (b *Builtin) Inspect() string

func (*Builtin) Type 

func (b *Builtin) Type() ObjectType

type BuiltinFunction 

type BuiltinFunction func(args ...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 OnlyStructs 

func OnlyStructs(env *Environment) *Environment

Hack for now that allows us to access all the defined structs without accessing any variables. A better solution would be to store that in a separate environment

func (*Environment) AddAcknowledgement 

func (e *Environment) AddAcknowledgement(ack string)

func (*Environment) AllowsPrivateAccess 

func (e *Environment) AllowsPrivateAccess(str *ast.Struct) bool

func (*Environment) Assign 

func (e *Environment) Assign(name string, val Object) (Object, error)

assign expects the variable to be declared and findable in the environment chain somewhere. Wherever it's found in the chain we'll store the new value

func (*Environment) Get 

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

func (*Environment) GetStruct 

func (e *Environment) GetStruct(name string) (*ast.Struct, bool)

func (*Environment) IsCurrentStructInstance 

func (e *Environment) IsCurrentStructInstance(structInstance *StructInstance) bool

func (*Environment) Set 

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

Set is for declaring variables and then assigning to them in the current environment. If the variable is declared in a parent environment, that variable will now be shadowed

func (*Environment) SetCurrentStructInstance 

func (e *Environment) SetCurrentStructInstance(structInstance *StructInstance)

func (*Environment) SetStruct 

func (e *Environment) SetStruct(structDef *ast.Struct) *ast.Struct

func (*Environment) String 

func (e *Environment) String() string

type Error 

type Error struct {
	Message string
}

func NewError 

func NewError(format string, a ...interface{}) *Error

func (*Error) Inspect 

func (e *Error) Inspect() string

func (*Error) Type 

func (e *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 (f *Function) Type() ObjectType

type Hash 

type Hash struct {
	Pairs map[HashKey]HashPair
}

func (*Hash) Inspect 

func (h *Hash) Inspect() string

func (*Hash) Type 

func (h *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 {
	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 (i *Integer) Type() ObjectType

type LazyObject 

type LazyObject struct {
	Right ast.Node
}

func (*LazyObject) Inspect 

func (self *LazyObject) Inspect() string

func (*LazyObject) Type 

func (self *LazyObject) Type() ObjectType

type Method 

type Method struct {
	Name         string
	StructMethod ast.StructMethod

	// not sure if we need an env here, or if we do which env to pass.
	Env *Environment

	StructInstance *StructInstance
}

func (*Method) Inspect 

func (self *Method) Inspect() string

func (*Method) Type 

func (self *Method) Type() ObjectType

type Null 

type Null struct{}

func (*Null) Inspect 

func (n *Null) Inspect() string

func (*Null) Type 

func (n *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 (rv *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 (s *String) Type() ObjectType

type StructInstance 

type StructInstance struct {
	Fields map[string]Object
	Struct *ast.Struct
}

func (*StructInstance) EvolveInto 

func (self *StructInstance) EvolveInto(other *StructInstance)

func (*StructInstance) GetFieldValue 

func (self *StructInstance) GetFieldValue(fieldName string) Object

func (*StructInstance) GetMethod 

func (self *StructInstance) GetMethod(methodName string) Object

func (*StructInstance) Inspect 

func (self *StructInstance) Inspect() string

func (*StructInstance) IsField 

func (self *StructInstance) IsField(fieldName string) bool

func (*StructInstance) IsMethod 

func (self *StructInstance) IsMethod(methodName string) bool

func (*StructInstance) IsPublicField 

func (self *StructInstance) IsPublicField(fieldName string) bool

assumes we've already determined that the field exists

func (*StructInstance) IsPublicMethod 

func (self *StructInstance) IsPublicMethod(methodName string) bool

assumes we've already determined that the method exists

func (*StructInstance) SetFieldValue 

func (self *StructInstance) SetFieldValue(fieldName string, value Object) Object

func (*StructInstance) Type 

func (self *StructInstance) Type() ObjectType

Source Files

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