Method new

crates/wasmtime/src/runtime/instance.rs:115–129

Creates a new [`Instance`] from the previously compiled [`Module`] and list of `imports` specified. This method instantiates the `module` provided with the `imports`, following the procedure in the [core specification][inst] to instantiate. Instantiation can fail for a number of reasons (many specified below), but if successful the `start` function will be automatically run (if specified in the `

(
        mut store: impl AsContextMut,
        module: &Module,
        imports: &[Extern],
    )

    /// memory allocation fails. See the `OutOfMemory` type's documentation for
    /// details on Wasmtime's out-of-memory handling.
    pub fn new(
        mut store: impl AsContextMut,
        module: &Module,
        imports: &[Extern],
    ) -> Result<Instance> {
        let mut store = store.as_context_mut();
        store.0.validate_sync_call()?;
        let imports = Instance::typecheck_externs(store.0, module, imports)?;
        // Note that the unsafety here should be satisfied by the call to
        // `typecheck_externs` above which satisfies the condition that all
        // the imports are valid for this module.
        vm::assert_ready(unsafe {
            Instance::new_started(&mut store, module, imports.as_ref(), Asyncness::No)
        })
    }

    /// Same as [`Instance::new`], except for usage in [asynchronous stores].
    ///