Struct deno_core::Extension

pub struct Extension {

    pub name: &'static str,
    pub deps: &'static [&'static str],
    pub js_files: Cow<'static, [ExtensionFileSource]>,
    pub esm_files: Cow<'static, [ExtensionFileSource]>,
    pub lazy_loaded_esm_files: Cow<'static, [ExtensionFileSource]>,
    pub esm_entry_point: Option<&'static str>,
    pub ops: Cow<'static, [OpDecl]>,
    pub external_references: Cow<'static, [ExternalReference<'static>]>,
    pub global_template_middleware: Option<for<'s> fn(_: &mut HandleScope<'s, ()>, _: Local<'s, ObjectTemplate>) -> Local<'s, ObjectTemplate>>,
    pub global_object_middleware: Option<for<'s> fn(_: &mut HandleScope<'s>, _: Local<'s, Object>)>,
    pub op_state_fn: Option<Box<dyn FnOnce(&mut OpState)>>,
    pub middleware_fn: Option<Box<OpMiddlewareFn>>,
    pub enabled: bool,
}

Fields

name: &'static str

deps: &'static [&'static str]

js_files: Cow<'static, [ExtensionFileSource]>

esm_files: Cow<'static, [ExtensionFileSource]>

lazy_loaded_esm_files: Cow<'static, [ExtensionFileSource]>

esm_entry_point: Option<&'static str>

ops: Cow<'static, [OpDecl]>

external_references: Cow<'static, [ExternalReference<'static>]>

global_template_middleware: Option<for<'s> fn(_: &mut HandleScope<'s, ()>, _: Local<'s, ObjectTemplate>) -> Local<'s, ObjectTemplate>>

global_object_middleware: Option<for<'s> fn(_: &mut HandleScope<'s>, _: Local<'s, Object>)>

op_state_fn: Option<Box<dyn FnOnce(&mut OpState)>>

middleware_fn: Option<Box<OpMiddlewareFn>>

enabled: bool

Implementations

impl Extension

pub fn check_dependencies(&self, previous_exts: &[Extension])

Check if dependencies have been loaded, and errors if either:

• The extension is depending on itself or an extension with the same name.
• A dependency hasn’t been loaded yet.

pub fn get_js_sources(&self) -> &[ExtensionFileSource]

returns JS source code to be loaded into the isolate (either at snapshotting, or at startup). as a vector of a tuple of the file name, and the source code.

pub fn get_esm_sources(&self) -> &[ExtensionFileSource]

pub fn get_lazy_loaded_esm_sources(&self) -> &[ExtensionFileSource]

pub fn get_esm_entry_point(&self) -> Option<&'static str>

pub fn op_count(&self) -> usize

pub fn init_ops(&mut self) -> &[OpDecl]

Called at JsRuntime startup to initialize ops in the isolate.

pub fn take_state(&mut self, state: &mut OpState)

Allows setting up the initial op-state of an isolate at startup.

pub fn take_middleware(&mut self) -> Option<Box<OpMiddlewareFn>>

Middleware should be called before init_ops

pub fn get_global_template_middleware( &mut self ) -> Option<for<'s> fn(_: &mut HandleScope<'s, ()>, _: Local<'s, ObjectTemplate>) -> Local<'s, ObjectTemplate>>

pub fn get_global_object_middleware( &mut self ) -> Option<for<'s> fn(_: &mut HandleScope<'s>, _: Local<'s, Object>)>

pub fn get_external_references(&mut self) -> &[ExternalReference<'static>]

pub fn enabled(self, enabled: bool) -> Self

pub fn disable(self) -> Self

Trait Implementations

impl Default for Extension

fn default() -> Self

Returns the “default value” for a type.