Struct RuntimeOptions

pub struct RuntimeOptions {
    pub extensions: Vec<Extension>,
    pub extension_options: ExtensionOptions,
    pub default_entrypoint: Option<String>,
    pub timeout: Duration,
    pub max_heap_size: Option<usize>,
    pub module_cache: Option<Box<dyn ModuleCacheProvider>>,
    pub import_provider: Option<Box<dyn ImportProvider>>,
    pub startup_snapshot: Option<&'static [u8]>,
    pub isolate_params: Option<CreateParams>,
    pub shared_array_buffer_store: Option<SharedArrayBufferStore>,
    pub schema_whlist: HashSet<String>,
}

Represents the set of options accepted by the runtime constructor Represents the set of options accepted by the runtime constructor

Fields

extensions: Vec<Extension>

A set of deno_core extensions to add to the runtime

extension_options: ExtensionOptions

Additional options for the built-in extensions

default_entrypoint: Option<String>

Function to use as entrypoint if the module does not provide one

timeout: Duration

Amount of time to run for before killing the thread

max_heap_size: Option<usize>

Optional maximum heap size for the runtime

If the heap size is exceeded, the runtime will return a HeapExhausted error.

WARNING this is not a minimum heap size; the underlying V8 isolate will still crash if this number is too small for startup (~5mb with default features)

module_cache: Option<Box<dyn ModuleCacheProvider>>

Optional cache provider for the module loader

import_provider: Option<Box<dyn ImportProvider>>

Optional import provider for the module loader

startup_snapshot: Option<&'static [u8]>

Optional snapshot to load into the runtime

This will reduce load times, but requires the same extensions to be loaded as when the snapshot was created

WARNING: Snapshots MUST be used on the same system they were created on

isolate_params: Option<CreateParams>

Optional configuration parameters for building the underlying v8 isolate

This can be used to alter the behavior of the runtime.

See the rusty_v8 documentation for more information

shared_array_buffer_store: Option<SharedArrayBufferStore>

Optional shared array buffer store to use for the runtime.

Allows data-sharing between runtimes across threads

schema_whlist: HashSet<String>

A whitelist of custom schema prefixes that are allowed to be loaded from javascript

By default only http/https (url_import crate feature), and file (fs_import crate feature) are allowed

Trait Implementations

impl Default for RuntimeOptions

fn default() -> Self

Returns the “default value” for a type.