object

package
v0.0.1-lw Latest Latest
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 Go to latest Published: Oct 11, 2022 License: MIT, MIT Imports: 6 Imported by: 0

Documentation

Index

Constants

View Source 
const (
	NUMBER_OBJ   = "NUMBER"
	STRING_OBJ   = "STRING"
	BOOLEAN_OBJ  = "BOOLEAN"
	NULL_OBJ     = "NULL"
	RETURN_OBJ   = "RETURN"
	FUNCTION_OBJ = "FUNCTION"
	BUILTIN_OBJ  = "BUILTIN"
	ERROR_OBJ    = "ERROR"
	RANGE_OBJ    = "RANGE"
	// vector
	VECTOR_OBJ = "VECTOR"
	// dict
	DICT_OBJ = "DICT"

	// colors
	COLOR_BLUE  = "\033[34m"
	COLOR_RESET = "\033[0m"
)

Variables

View Source 
var FALSE = &Boolean{Value: false}
View Source 
var NULL = &Null{}

only need one "constant" object for true, false and null

View Source 
var TRUE = &Boolean{Value: true}

Functions

func IsError 

func IsError(obj Object) bool

Types

type BaseVector 

type BaseVector struct {
	Elements []Object
}

the inner element for all vectors, provides implementation for methods in IVector (doesn't have to be of IVector itself)

func (*BaseVector) Append 

func (bv *BaseVector) Append(vals ...Object) Object

append objects to vector, flattening if necessary

func (*BaseVector) ElementType 

func (bv *BaseVector) ElementType() ObjectType

func (*BaseVector) Head 

func (bv *BaseVector) Head(n int) []Object

func (*BaseVector) Infix 

func (bv *BaseVector) Infix(f func(Object, Object) Object, other IVector) Object

func (*BaseVector) Inspect 

func (bv *BaseVector) Inspect() string

func (*BaseVector) Length 

func (bv *BaseVector) Length() int

func (*BaseVector) Print 

func (bv *BaseVector) Print(dtype string) string

func (*BaseVector) Replace 

func (bv *BaseVector) Replace(start int, end int, replacement IVector, t ObjectType) Object

func (*BaseVector) Set 

func (bv *BaseVector) Set(index int, val Object, t ObjectType) Object

func (*BaseVector) Slice 

func (bv *BaseVector) Slice(start int, end int) Object

func (*BaseVector) Tail 

func (bv *BaseVector) Tail(n int) []Object

func (*BaseVector) Type 

func (bv *BaseVector) Type() ObjectType

func (*BaseVector) Values 

func (bv *BaseVector) Values(n int) []Object

type Boolean 

type Boolean struct {
	Value bool
}

func (*Boolean) Hash 

func (b *Boolean) Hash() DictKey

func (*Boolean) Inspect 

func (b *Boolean) Inspect() string

func (*Boolean) Type 

func (b *Boolean) Type() ObjectType

type Builtin 

type Builtin struct {
	RequiredParametersNum int
	Fn                    BuiltinFunction
}

func (*Builtin) Inspect 

func (b *Builtin) Inspect() string

func (*Builtin) Type 

func (b *Builtin) Type() ObjectType

type BuiltinFunction 

type BuiltinFunction func(env *Env, args ...Object) Object

type CharacterVector 

type CharacterVector struct {
	BaseVector
}

vectors with object.String

func (*CharacterVector) Append 

func (cv *CharacterVector) Append(objects ...Object) Object

func (*CharacterVector) ElementType 

func (bv *CharacterVector) ElementType() ObjectType

func (*CharacterVector) Head 

func (cv *CharacterVector) Head(n int) Object

func (*CharacterVector) Infix 

func (cv *CharacterVector) Infix(f func(Object, Object) Object, other IVector) Object

func (*CharacterVector) Inspect 

func (cv *CharacterVector) Inspect() string

func (*CharacterVector) Length 

func (cv *CharacterVector) Length() int

func (*CharacterVector) New 

func (cv *CharacterVector) New(elements []Object) IVector

func (*CharacterVector) Print 

func (cv *CharacterVector) Print() string

func (*CharacterVector) Replace 

func (cv *CharacterVector) Replace(start int, end int, replacement IVector) Object

func (*CharacterVector) Set 

func (cv *CharacterVector) Set(index int, val Object) Object

func (*CharacterVector) Slice 

func (cv *CharacterVector) Slice(start int, end int) Object

func (*CharacterVector) Tail 

func (cv *CharacterVector) Tail(n int) Object

func (*CharacterVector) Type 

func (cv *CharacterVector) Type() ObjectType

func (*CharacterVector) Values 

func (cv *CharacterVector) Values() []Object

type Dict 

type Dict struct {
	Pairs map[DictKey]DictPair
}

{"a": 1} => &Dict{Pairs: {"a".Hash(): {"a": 1}}}

func (*Dict) Get 

func (d *Dict) Get(key Object) (Object, bool)

func (*Dict) Inspect 

func (d *Dict) Inspect() string

func (*Dict) Keys 

func (d *Dict) Keys() []Object

func (*Dict) Set 

func (d *Dict) Set(key Object, value Object)

func (*Dict) Type 

func (d *Dict) Type() ObjectType

type DictKey 

type DictKey struct {
	Type  ObjectType // the type of the origional key in DictLiteral, one of String, Integer, or Boolean
	Value uint64
}

type DictPair 

type DictPair struct {
	Key   Object // the origional key in DictLiteral, one of String, Integer, or Boolean
	Value Object
}

type Env 

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

func NewEnclosedEnvironment 

func NewEnclosedEnvironment(outer *Env) *Env

func NewEnv 

func NewEnv() *Env

func (*Env) Get 

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

func (*Env) GetAllEnvs 

func (e *Env) GetAllEnvs() []*Env

func (*Env) GetOuterEnv 

func (e *Env) GetOuterEnv() *Env

func (*Env) InStore 

func (e *Env) InStore(name string) bool

func (*Env) Set 

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

type Error 

type Error struct {
	Message string
}

func NewError 

func NewError(text 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
	Defaults              map[string]ast.Expression
	RequiredParametersNum int
	Body                  *ast.BlockStatement
	Env                   *Env
}

func (*Function) Inspect 

func (f *Function) Inspect() string

func (*Function) Type 

func (f *Function) Type() ObjectType

type Hashable 

type Hashable interface {
	Hash() DictKey
}

type IVector 

type IVector interface {
	Type() ObjectType
	Inspect() string
	Print() string
	ElementType() ObjectType
	Length() int
	Head(n int) Object
	Tail(n int) Object
	Values() []Object
	Slice(start int, end int) Object
	Append(objects ...Object) Object
	Set(start int, val Object) Object
	Replace(start int, end int, replacement IVector) Object
	Infix(func(Object, Object) Object, IVector) Object
}

interface for all vectors

type Integer 

type Integer struct {
	Value int64
}

not used, all numbers are stored as float64

func (*Integer) Hash 

func (i *Integer) Hash() DictKey

func (*Integer) Inspect 

func (n *Integer) Inspect() string

func (*Integer) Type 

func (n *Integer) Type() ObjectType

type LogicalVector 

type LogicalVector struct {
	BaseVector
}

vectors with object.Boolean

func (*LogicalVector) Append 

func (lv *LogicalVector) Append(objects ...Object) Object

func (*LogicalVector) ElementType 

func (bv *LogicalVector) ElementType() ObjectType

func (*LogicalVector) Head 

func (lv *LogicalVector) Head(n int) Object

func (*LogicalVector) Infix 

func (lv *LogicalVector) Infix(f func(Object, Object) Object, other IVector) Object

func (*LogicalVector) Inspect 

func (lv *LogicalVector) Inspect() string

func (*LogicalVector) Length 

func (lv *LogicalVector) Length() int

func (*LogicalVector) New 

func (lv *LogicalVector) New(elements []Object) IVector

func (*LogicalVector) Print 

func (lv *LogicalVector) Print() string

func (*LogicalVector) Replace 

func (lv *LogicalVector) Replace(start int, end int, replacement IVector) Object

func (*LogicalVector) Set 

func (lv *LogicalVector) Set(index int, val Object) Object

func (*LogicalVector) Slice 

func (lv *LogicalVector) Slice(start int, end int) Object

func (*LogicalVector) Tail 

func (lv *LogicalVector) Tail(n int) Object

func (*LogicalVector) Type 

func (lv *LogicalVector) Type() ObjectType

func (*LogicalVector) Values 

func (lv *LogicalVector) Values() []Object

type Null 

type Null struct{}

func (*Null) Inspect 

func (n *Null) Inspect() string

func (*Null) Type 

func (n *Null) Type() ObjectType

type Number 

type Number struct {
	Value float64
}

func (*Number) Clone 

func (i *Number) Clone() Object

func (*Number) Hash 

func (i *Number) Hash() DictKey

func (*Number) Inspect 

func (n *Number) Inspect() string

func (*Number) Type 

func (n *Number) Type() ObjectType

type NumericVector 

type NumericVector struct {
	BaseVector
}

vectors with object.Number

func (*NumericVector) Append 

func (nv *NumericVector) Append(objects ...Object) Object

func (*NumericVector) ElementType 

func (bv *NumericVector) ElementType() ObjectType

func (*NumericVector) Head 

func (nv *NumericVector) Head(n int) Object

func (*NumericVector) Infix 

func (nv *NumericVector) Infix(f func(Object, Object) Object, other IVector) Object

func (*NumericVector) Inspect 

func (nv *NumericVector) Inspect() string

func (*NumericVector) Length 

func (nv *NumericVector) Length() int

func (*NumericVector) New 

func (nv *NumericVector) New(elements []Object) IVector

func (*NumericVector) Print 

func (nv *NumericVector) Print() string

func (*NumericVector) Replace 

func (nv *NumericVector) Replace(start int, end int, replacement IVector) Object

func (*NumericVector) Set 

func (nv *NumericVector) Set(index int, val Object) Object

func (*NumericVector) Slice 

func (nv *NumericVector) Slice(start int, end int) Object

func (*NumericVector) Tail 

func (nv *NumericVector) Tail(n int) Object

func (*NumericVector) Type 

func (nv *NumericVector) Type() ObjectType

func (*NumericVector) Values 

func (nv *NumericVector) Values() []Object

type Object 

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

func NewVector 

func NewVector(elements []Object) Object

create vector based on type of first element

type ObjectType 

type ObjectType string

type Range 

type Range struct {
	Start int
	End   int
}

func (*Range) Inspect 

func (r *Range) Inspect() string

func (*Range) Type 

func (r *Range) Type() ObjectType

type ReturnValue 

type ReturnValue struct {
	Value Object
}

func (*ReturnValue) Inspect 

func (r *ReturnValue) Inspect() string

func (*ReturnValue) Type 

func (r *ReturnValue) Type() ObjectType

type String 

type String struct {
	Value string
}

func (*String) Clone 

func (s *String) Clone() Object

func (*String) Hash 

func (s *String) Hash() DictKey

func (*String) Inspect 

func (s *String) Inspect() string

func (*String) Type 

func (s *String) Type() ObjectType

type Vector 

type Vector struct {
	BaseVector
}

vector with mixed types

func (*Vector) Append 

func (v *Vector) Append(objects ...Object) Object

func (*Vector) ElementType 

func (bv *Vector) ElementType() ObjectType

func (*Vector) Head 

func (v *Vector) Head(n int) Object

func (*Vector) Infix 

func (v *Vector) Infix(f func(Object, Object) Object, other IVector) Object

func (*Vector) Inspect 

func (v *Vector) Inspect() string

func (*Vector) Length 

func (v *Vector) Length() int

func (*Vector) Print 

func (v *Vector) Print() string

func (*Vector) Replace 

func (v *Vector) Replace(start int, end int, replacement IVector) Object

func (*Vector) Set 

func (v *Vector) Set(index int, val Object) Object

func (*Vector) Slice 

func (v *Vector) Slice(start int, end int) Object

func (*Vector) Tail 

func (v *Vector) Tail(n int) Object

func (*Vector) Type 

func (v *Vector) Type() ObjectType

func (*Vector) Values 

func (v *Vector) Values() []Object

Source Files

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