// This file contains code from external sources.

// Attributions: https://github.com/wasmerio/wasmer/blob/main/docs/ATTRIBUTIONS.md

use crate::global::VMGlobal;

use crate::memory::VMMemory;

use crate::store::InternalStoreHandle;

use crate::table::VMTable;

use crate::vmcontext::VMFunctionKind;

use crate::{MaybeInstanceOwned, VMCallerCheckedAnyfunc};

use derivative::Derivative;

use std::any::Any;

use wasmer_types::FunctionType;

/// The value of an export passed from one instance to another.

#[cfg_attr(feature = "artifact-size", derive(loupe::MemoryUsage))]

pub enum VMExtern {

    /// A function export value.

    Function(InternalStoreHandle<VMFunction>),

    /// A table export value.

    Table(InternalStoreHandle<VMTable>),

    /// A memory export value.

    Memory(InternalStoreHandle<VMMemory>),

    /// A global export value.

    Global(InternalStoreHandle<VMGlobal>),

}

/// A function export value.

#[derive(Derivative)]

#[derivative(Debug)]

pub struct VMFunction {

    /// Pointer to the `VMCallerCheckedAnyfunc` which contains data needed to

    /// call the function and check its signature.

    #[derivative(Debug = "ignore")]

    pub anyfunc: MaybeInstanceOwned<VMCallerCheckedAnyfunc>,

    /// The function type, used for compatibility checking.

    pub signature: FunctionType,

    /// The function kind (specifies the calling convention for the

    /// function).

    pub kind: VMFunctionKind,

    /// Associated data owned by a host function.

    #[derivative(Debug = "ignore")]

    pub host_data: Box<dyn Any>,

}

Unexecuted instantiation: <wasmer_vm::export::VMFunction as core::fmt::Debug>::fmt

Unexecuted instantiation: <wasmer_vm::export::VMFunction as core::fmt::Debug>::fmt