Struct Config 

pub struct Config {
    pub imports: Vec<String>,
    pub before: Vec<String>,
    pub repl_code: String,
    pub after: Vec<String>,
    pub copy_dirs: Vec<String>,
    pub path_to_node_modules: Option<String>,
    /* private fields */
}

Configurating for Repl. Usually you will want to setup the REPL context by importing some modules and doing some setup. Then maybe, run some teardown code after the REPL closes. Do this by giving JavaScript strings to Config::imports, Config::before, and Config::after fields.

The Node.js script will look something like:

// eval Config::imports

(async () => {
    // eval Config::before

   for await (const line of repl()) {
        eval(line)
   }

   // eval Config::after
})()

You will probably want to provide Config::path_to_node_modules so use can use npm packages .

Fields

imports: Vec<String>

JS imports

before: Vec<String>

Code that runs before the REPL in an async context. setup, etc.

repl_code: String

Define and run the REPL.

after: Vec<String>

Code that runs after the REPL. teardown, etc. Run in reverse order.

copy_dirs: Vec<String>

A list paths that will be copied into the tempfile::TempDir alongside the REPL script. Useful for importing custom code.

path_to_node_modules: Option<String>

Path to a node_modules directory which node will use.

Implementations

impl Config

pub fn build() -> Result<Self>

Build a default Config.

pub async fn start(&mut self) -> Result<Repl>

Start Node.js and return Repl.

Trait Implementations

impl Debug for Config

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for Config

fn default() -> Config

Returns the “default value” for a type.