Struct Builder 

pub struct Builder { /* private fields */ }

Builds an Engine: register host functions, then build with the script. Host functions must be registered before the script runs, since the script may call them during initialization.

Implementations

impl Builder

pub fn new() -> Self

pub fn host_number( &mut self, name: &str, f: impl Fn() -> f64 + Send + Sync + 'static, ) -> &mut Self

Register a zero-argument host::<name>() returning a number.

pub fn build(self, script: &str) -> Result<Engine, String>

Compile and initialize the script, producing a ready Engine.

Trait Implementations

impl Default for Builder

fn default() -> Self

Returns the “default value” for a type.