Struct JavascriptExecutionEngine 

pub struct JavascriptExecutionEngine { /* private fields */ }

Implementations

impl JavascriptExecutionEngine

pub fn new(runtime: RuntimeContext) -> Self

pub fn set_runtime_context(&mut self, runtime: RuntimeContext)

Bind this engine to the process-owned runtime before starting work. This setter exists for embedders that previously constructed via Default; new code should prefer Self::new.

pub fn create_context( &mut self, request: CreateJavascriptContextRequest, ) -> JavascriptContext

pub fn dispose_context(&mut self, context_id: &str) -> bool

Dispose an execution context once its final start/prepare operation has consumed the metadata. Live executions own their resolved runtime state independently and do not consult this registry after creation.

pub fn start_execution( &mut self, request: StartJavascriptExecutionRequest, ) -> Result<JavascriptExecution, JavascriptExecutionError>

pub fn start_execution_with_runtime( &mut self, request: StartJavascriptExecutionRequest, runtime: RuntimeContext, ) -> Result<JavascriptExecution, JavascriptExecutionError>

pub fn prepare_execution( &mut self, request: StartJavascriptExecutionRequest, ) -> Result<JavascriptExecution, JavascriptExecutionError>

pub fn prepare_execution_with_runtime( &mut self, request: StartJavascriptExecutionRequest, runtime: RuntimeContext, ) -> Result<JavascriptExecution, JavascriptExecutionError>

Prepare an execution with an explicitly scoped runtime without enqueueing guest code. Cross-runtime exec uses this to bind the replacement isolate to the target VM’s accounting and reactor state before committing execve.

pub fn start_execution_with_module_reader( &mut self, request: StartJavascriptExecutionRequest, module_reader: Option<Box<dyn ModuleFsReader + Send>>, guest_reader: Option<Box<dyn GuestModuleReader>>, ) -> Result<JavascriptExecution, JavascriptExecutionError>

Like start_execution but with an optional read-only VFS reader over the mounted node_modules tree. When supplied, the bridge thread resolves module-resolution RPCs inline against this reader (off the service loop, concurrently with it) instead of routing them through the service loop. The reader must be Send because it is moved onto the bridge thread; it must read the same mount the guest sees.

pub fn prepare_execution_with_module_reader( &mut self, request: StartJavascriptExecutionRequest, module_reader: Option<Box<dyn ModuleFsReader + Send>>, guest_reader: Option<Box<dyn GuestModuleReader>>, ) -> Result<JavascriptExecution, JavascriptExecutionError>

Prepare an execution through every fallible image-loading step without enqueueing guest code in V8. Used by execve when the replacement runtime differs from the current runtime.

pub fn start_execution_with_module_reader_and_runtime( &mut self, request: StartJavascriptExecutionRequest, module_reader: Option<Box<dyn ModuleFsReader + Send>>, guest_reader: Option<Box<dyn GuestModuleReader>>, runtime: RuntimeContext, ) -> Result<JavascriptExecution, JavascriptExecutionError>

pub fn prepare_execution_with_module_reader_and_runtime( &mut self, request: StartJavascriptExecutionRequest, module_reader: Option<Box<dyn ModuleFsReader + Send>>, guest_reader: Option<Box<dyn GuestModuleReader>>, runtime: RuntimeContext, ) -> Result<JavascriptExecution, JavascriptExecutionError>

pub fn dispose_vm(&mut self, vm_id: &str)

Trait Implementations

impl Debug for JavascriptExecutionEngine

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

Formats the value using the given formatter.

impl Default for JavascriptExecutionEngine

fn default() -> Self

Returns the “default value” for a type.