Struct rusty_v8::Module

#[repr(C)]pub struct Module(_);

A compiled JavaScript module.

Implementations

impl Module

pub fn get_status(&self) -> ModuleStatus

Returns the module’s current status.

pub fn get_exception(&self) -> Local<'_, Value>

For a module in kErrored status, this returns the corresponding exception.

pub fn get_module_requests_length(&self) -> usize

👎 Deprecated since 0.18.2:

Use Module::get_module_requests() and FixedArray::length().

Returns the number of modules requested by this module.

pub fn get_module_request(&self, i: usize) -> Local<'_, String>

👎 Deprecated since 0.18.2:

Use Module::get_module_requests() and ModuleRequest::get_specifier().

Returns the ith module specifier in this module. i must be < self.get_module_requests_length() and >= 0.

pub fn get_module_requests(&self) -> Local<'_, FixedArray>

Returns the ModuleRequests for this module.

pub fn get_module_request_location(&self, i: usize) -> Location

👎 Deprecated since 0.18.2:

Use Module::get_module_requests(), ModuleRequest::get_source_offset() and Module::source_offset_to_location().

Returns the source location (line number and column number) of the ith module specifier’s first occurrence in this module.

pub fn source_offset_to_location(&self, offset: int) -> Location

For the given source text offset in this module, returns the corresponding Location with line and column numbers.

pub fn script_id(&self) -> Option<int>

Returns the underlying script’s id.

The module must be a SourceTextModule and must not have an Errored status.

pub fn get_module_namespace(&self) -> Local<'_, Value>

Returns the namespace object of this module.

The module’s status must be at least kInstantiated.

#[must_use]pub fn instantiate_module<'a>(
    &self,
    scope: &mut HandleScope<'_>,
    callback: impl MapFnTo<ResolveModuleCallback<'a>>
) -> Option<bool>

Instantiates the module and its dependencies.

Returns an empty Maybe if an exception occurred during instantiation. (In the case where the callback throws an exception, that exception is propagated.)

NOTE: requires to set --harmony-import-assertions V8 flag.

#[must_use]pub fn evaluate<'s>(
    &self,
    scope: &mut HandleScope<'s>
) -> Option<Local<'s, Value>>

Evaluates the module and its dependencies.

If status is kInstantiated, run the module’s code. On success, set status to kEvaluated and return the completion value; on failure, set status to kErrored and propagate the thrown exception (which is then also available via |GetException|).

pub fn is_source_text_module(&self) -> bool

Returns whether the module is a SourceTextModule.

pub fn is_synthetic_module(&self) -> bool

Returns whether the module is a SyntheticModule.

pub fn create_synthetic_module<'s, 'a>(
    scope: &mut HandleScope<'s>,
    module_name: Local<'_, String>,
    export_names: &[Local<'_, String>],
    evaluation_steps: impl MapFnTo<SyntheticModuleEvaluationSteps<'a>>
) -> Local<'s, Module>

Creates a new SyntheticModule with the specified export names, where evaluation_steps will be executed upon module evaluation. export_names must not contain duplicates. module_name is used solely for logging/debugging and doesn’t affect module behavior.

#[must_use]pub fn set_synthetic_module_export(
    &self,
    scope: &mut HandleScope<'_>,
    export_name: Local<'_, String>,
    export_value: Local<'_, Value>
) -> Option<bool>

Set this module’s exported value for the name export_name to the specified export_value. This method must be called only on Modules created via create_synthetic_module. An error will be thrown if export_name is not one of the export_names that were passed in that create_synthetic_module call. Returns Some(true) on success, None if an error was thrown.

Methods from Deref<Target = Data>

pub fn get_hash(&self) -> int

Returns the V8 hash value for this value. The current implementation uses a hidden property to store the identity hash on some object types.

The return value will never be 0. Also, it is not guaranteed to be unique.

pub fn is_value(&self) -> bool

Returns true if this data is a Value.

pub fn is_module(&self) -> bool

Returns true if this data is a Module.

pub fn is_private(&self) -> bool

Returns true if this data is a Private.

pub fn is_object_template(&self) -> bool

Returns true if this data is an ObjectTemplate

pub fn is_function_template(&self) -> bool

Returns true if this data is a FunctionTemplate.

Trait Implementations

impl Debug for Module

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

Formats the value using the given formatter.

impl Deref for Module

type Target = Data

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl Eq for Module

impl Hash for Module

fn hash<H: Hasher>(&self, state: &mut H)

Feeds this value into the given Hasher.

pub fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 

Feeds a slice of this type into the given Hasher.

impl<'s> PartialEq<Data> for Module

fn eq(&self, other: &Data) -> bool

This method tests for self and other values to be equal, and is used by ==.

#[must_use]pub fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl<'s> PartialEq<Module> for Data

fn eq(&self, other: &Module) -> bool

This method tests for self and other values to be equal, and is used by ==.

#[must_use]pub fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl<'s> PartialEq<Module> for Module

fn eq(&self, other: &Module) -> bool

This method tests for self and other values to be equal, and is used by ==.

#[must_use]pub fn ne(&self, other: &Rhs) -> bool

This method tests for !=.