Struct js::jsapi::ScriptEnvironmentPreparer

#[repr(C)]
pub struct ScriptEnvironmentPreparer {
    pub _vftable: *const _vftable_ScriptEnvironmentPreparer,
}

If the embedder has registered a ScriptEnvironmentPreparer, PrepareScriptEnvironmentAndInvoke will call the preparer's 'invoke' method with the given |closure|, with the assumption that the preparer will set up any state necessary to run script in |scope|, invoke |closure| with a valid JSContext*, report any exceptions thrown from the closure, and return.

If no preparer is registered, PrepareScriptEnvironmentAndInvoke will assert that |rt| has exactly one JSContext associated with it, enter the compartment of |scope| on that context, and invoke |closure|.

In both cases, PrepareScriptEnvironmentAndInvoke will report any exceptions that are thrown by the closure. Consumers who want to propagate back whether the closure succeeded should do so via members of the closure itself.

Fields

_vftable: *const _vftable_ScriptEnvironmentPreparer

Trait Implementations

impl Debug for ScriptEnvironmentPreparer

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.

impl Copy for ScriptEnvironmentPreparer

impl Clone for ScriptEnvironmentPreparer

fn clone(&self) -> Self

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.