repl

Documentation

Index

• Constants
• type Options
• type REPL
  • func New(user string, args []string, opts *Options) *REPL
  • func (r *REPL) Eval(f io.Reader) (env *object.Environment)
  • func (r *REPL) Exec(f io.Reader) (state *VMState)
  • func (r *REPL) Run()
  • func (r *REPL) StartEvalLoop(in io.Reader, out io.Writer, env *object.Environment)
  • func (r *REPL) StartExecLoop(in io.Reader, out io.Writer, state *VMState)
• type VMState
  • func NewVMState() *VMState

Constants

const MonkeyFace = `` /* 273-byte string literal not displayed */

MonkeyFace is the REPL's face of shock and horror when you encounter a parser error :D

const PROMPT = ">> "

PROMPT is the REPL prompt displayed for each input

Types

type Options

type Options struct {
	Debug       bool
	Engine      string
	Interactive bool
}

type REPL

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

func New

func New(user string, args []string, opts *Options) *REPL

func (*REPL) Eval

func (r *REPL) Eval(f io.Reader) (env *object.Environment)

Eval parses and evalulates the program given by f and returns the resulting environment, any errors are printed to stderr

func (*REPL) Exec

func (r *REPL) Exec(f io.Reader) (state *VMState)

Exec parses, compiles and executes the program given by f and returns the resulting virtual machine, any errors are printed to stderr

func (*REPL) Run

func (r *REPL) Run()

func (*REPL) StartEvalLoop

func (r *REPL) StartEvalLoop(in io.Reader, out io.Writer, env *object.Environment)

StartEvalLoop starts the REPL in a continious eval loop

func (*REPL) StartExecLoop

func (r *REPL) StartExecLoop(in io.Reader, out io.Writer, state *VMState)

StartExecLoop starts the REPL in a continious exec loop

type VMState

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

func NewVMState

func NewVMState() *VMState