types

Documentation

Index

• type Boolean
  • func (b Boolean) String() string
• type Expression
• type Number
• type Pair
  • func NewList(args ...Expression) *Pair
  • func (p *Pair) Append(exp Expression) *Pair
  • func (p *Pair) IsList() bool
  • func (p *Pair) IsNull() bool
  • func (p *Pair) String() string
• type Symbol

Types

type Boolean

type Boolean bool

Boolean is boolean of scheme.

func (Boolean) String

func (b Boolean) String() string

type Expression

type Expression interface{}

Expression is S-expression

type Number

type Number float64

Number is number of scheme. (based on Go float64)

type Pair

type Pair struct {
	Car Expression
	Cdr Expression
}

Pair is cons

func NewList

func NewList(args ...Expression) *Pair

NewList makes concatenated pair's list. Internally, creating last pair and concatenate it with previous pair.

func (*Pair) Append

func (p *Pair) Append(exp Expression) *Pair

Append add cons pair to given pair exp, first arguments of callee, should be car of this pair.

func (*Pair) IsList

func (p *Pair) IsList() bool

IsList returns if pair is list or not.

* empty pair is list * end of list should be empty pair (empty list)

func (*Pair) IsNull

func (p *Pair) IsNull() bool

IsNull checking if pair is null or not.

func (*Pair) String

func (p *Pair) String() string

type Symbol

type Symbol string

Symbol is index of S-expression in some environment.