Struct v8::FunctionBuilder

pub struct FunctionBuilder<'s, T> { /* private fields */ }

A builder to construct the properties of a Function or FunctionTemplate.

Implementations

impl<'s, T> FunctionBuilder<'s, T>

pub fn new(callback: impl MapFnTo<FunctionCallback>) -> Self

Create a new FunctionBuilder.

pub fn new_raw(callback: FunctionCallback) -> Self

pub fn data(self, data: Local<'s, Value>) -> Self

Set the associated data. The default is no associated data.

pub fn length(self, length: i32) -> Self

Set the function length. The default is 0.

pub fn constructor_behavior( self, constructor_behavior: ConstructorBehavior ) -> Self

Set the constructor behavior. The default is ConstructorBehavior::Allow.

pub fn side_effect_type(self, side_effect_type: SideEffectType) -> Self

Set the side effect type. The default is SideEffectType::HasSideEffect.

impl<'s> FunctionBuilder<'s, Function>

pub fn build(self, scope: &mut HandleScope<'s>) -> Option<Local<'s, Function>>

Create the function in the current execution context.

impl<'s> FunctionBuilder<'s, FunctionTemplate>

pub fn signature(self, signature: Local<'s, Signature>) -> Self

Set the function call signature. The default is no signature.

pub fn build( self, scope: &mut HandleScope<'s, ()> ) -> Local<'s, FunctionTemplate>

Creates the function template.

pub fn build_fast( self, scope: &mut HandleScope<'s, ()>, overload1: &FastFunction, c_fn_info1: Option<*const CFunctionInfo>, overload2: Option<&FastFunction>, c_fn_info2: Option<*const CFunctionInfo> ) -> Local<'s, FunctionTemplate>

It’s not required to provide CFunctionInfo for the overloads - if they are omitted, then they will be automatically created. In some cases it is useful to pass them explicitly - eg. when you are snapshotting you’d provide the overloads and CFunctionInfo that would be placed in the external references array.