Method new

crates/wasmtime/src/runtime/component/func/options.rs:58–77

Creates a new lowering context from the specified parameters.

(
        store: StoreContextMut<'a, T>,
        options: OptionsIndex,
        instance: Instance,
    )

impl<'a, T: 'static> LowerContext<'a, T> {
    /// Creates a new lowering context from the specified parameters.
    pub fn new(
        store: StoreContextMut<'a, T>,
        options: OptionsIndex,
        instance: Instance,
    ) -> LowerContext<'a, T> {
        // Debug-assert that if we can't block that blocking is indeed allowed.
        // This'll catch when this is accidentally created outside of a fiber
        // when we need to be on a fiber.
        if cfg!(debug_assertions) && !store.0.can_block() {
            store.0.validate_sync_call().unwrap();
        }
        let (component, store) = instance.component_and_store_mut(store.0);
        LowerContext {
            store: StoreContextMut(store),
            options,
            types: component.types(),
            instance,
            allow_realloc: true,
        }
    }

    /// Like `new`, except disallows use of `options.realloc`.
    ///