repl

Documentation

Index

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

Types

type Options

type Options struct {
	Debug       bool
	Interactive bool
}

Options are the REPL parameters.

type REPL

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

REPL is the read-evaluate-print loop.

func New

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

New create a 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) Run

func (r *REPL) Run()

Run execute the read-eval loop.

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