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/// Automatically generate "backend" types.
#[macro_use]
macro_rules! gen_rt_ty {
// In this case we automatically try to create the struct following the canonical path to the
// same entity in each backend.
($id:ident) => {
paste::paste! {
pub(crate) enum [<Backend $id>] {
#[cfg(feature = "sys")]
/// The implementation from the `sys` backend.
Sys(crate::backend::sys::entities::[<$id:lower>]::$id),
#[cfg(feature = "v8")]
/// The implementation from the `v8` backend.
V8(crate::backend::v8::entities::[<$id:lower>]::$id),
#[cfg(feature = "wamr")]
/// The implementation from the `wamr` backend.
Wamr(crate::backend::wamr::entities::[<$id:lower>]::$id),
#[cfg(feature = "wasmi")]
/// The implementation from the `wasmi` backend.
Wasmi(crate::backend::wasmi::entities::[<$id:lower>]::$id),
#[cfg(feature = "js")]
/// The implementation from the `js` backend.
Js(crate::backend::js::entities::[<$id:lower>]::$id),
#[cfg(feature = "jsc")]
/// The implementation from the `jsc` backend.
Jsc(crate::backend::jsc::entities::[<$id:lower>]::$id),
}
}
};
($id:ident$(<$lt:lifetime>)? $(@cfg $($if:meta => $then: meta),*)? @derives $($derive:path),*) => {
paste::paste! {
$($(#[cfg_attr($if, $then)])*)?
#[derive($($derive,)*)]
#[allow(clippy::large_enum_variant)]
pub(crate) enum [<Backend $id>]$(<$lt>)? {
#[cfg(feature = "sys")]
/// The implementation from the `sys` backend.
Sys(crate::backend::sys::entities::[<$id:lower>]::$id$(<$lt>)?),
#[cfg(feature = "v8")]
/// The implementation from the `v8` backend.
V8(crate::backend::v8::entities::[<$id:lower>]::$id$(<$lt>)?),
#[cfg(feature = "wamr")]
/// The implementation from the `wamr` backend.
Wamr(crate::backend::wamr::entities::[<$id:lower>]::$id$(<$lt>)?),
#[cfg(feature = "wasmi")]
/// The implementation from the `wasmi` backend.
Wasmi(crate::backend::wasmi::entities::[<$id:lower>]::$id$(<$lt>)?),
#[cfg(feature = "js")]
/// The implementation from the `js` backend.
Js(crate::backend::js::entities::[<$id:lower>]::$id$(<$lt>)?),
#[cfg(feature = "jsc")]
/// The implementation from the `jsc` backend.
Jsc(crate::backend::jsc::entities::[<$id:lower>]::$id$(<$lt>)?),
}
}
};
($id:ident$(<$lt:lifetime>)? $(@cfg $($if:meta => $then: meta),*)? @derives $($derive:path),* ; @path $path:path ) => {
paste::paste! {
$($(#[cfg_attr($if, $then)])*)?
#[derive($($derive,)*)]
pub(crate) enum [<Backend $id>]$(<$lt>)? {
#[cfg(feature = "sys")]
/// The implementation from the `sys` backend.
Sys(crate::backend::sys::entities::$path::$id$(<$lt>)?),
#[cfg(feature = "v8")]
/// The implementation from the `v8` backend.
V8(crate::backend::v8::entities::$path::$id$(<$lt>)?),
#[cfg(feature = "wamr")]
/// The implementation from the `wamr` backend.
Wamr(crate::backend::wamr::entities::$path::$id$(<$lt>)?),
#[cfg(feature = "wasmi")]
/// The implementation from the `wasmi` backend.
Wasmi(crate::backend::wasmi::entities::$path::$id$(<$lt>)?),
#[cfg(feature = "js")]
/// The implementation from the `js` backend.
Js(crate::backend::js::entities::$path::$id$(<$lt>)?),
#[cfg(feature = "jsc")]
/// The implementation from the `jsc` backend.
Jsc(crate::backend::jsc::entities::$path::$id$(<$lt>)?),
}
}
};
($id:ident @derives $($derive:path),* ; @path $path:path) => {
paste::paste! {
#[derive($($derive,)*)]
pub(crate) enum [<Backend $id>] {
#[cfg(feature = "sys")]
/// The implementation from the `sys` backend.
Sys(crate::backend::sys::entities::$path::$id),
#[cfg(feature = "v8")]
/// The implementation from the `v8` backend.
V8(crate::backend::v8::entities::$path::$id),
#[cfg(feature = "wamr")]
/// The implementation from the `wamr` backend.
Wamr(crate::backend::wamr::entities::$path::$id),
#[cfg(feature = "wasmi")]
/// The implementation from the `wasmi` backend.
Wasmi(crate::backend::wasmi::entities::$path::$id),
#[cfg(feature = "js")]
/// The implementation from the `js` backend.
Js(crate::backend::js::entities::$path::$id),
#[cfg(feature = "jsc")]
/// The implementation from the `jsc` backend.
Jsc(crate::backend::jsc::entities::$path::$id),
}
}
};
}
/// Automatically create a match statement, repeating the expression for each backend.
#[macro_use]
macro_rules! match_rt {
(on $self:expr => $var:ident { $stmt:expr }) => {
match $self {
#[cfg(feature = "sys")]
Self::Sys($var) => $stmt,
#[cfg(feature = "wamr")]
Self::Wamr($var) => $stmt,
#[cfg(feature = "wasmi")]
Self::Wasmi($var) => $stmt,
#[cfg(feature = "v8")]
Self::V8($var) => $stmt,
#[cfg(feature = "js")]
Self::Js($var) => $stmt,
#[cfg(feature = "jsc")]
Self::Jsc($var) => $stmt,
}
};
(on $value:expr ; $match:expr => $var:ident { $stmt:expr }) => {
match $self {
#[cfg(feature = "sys")]
Self::Sys($var) => $stmt,
#[cfg(feature = "wamr")]
Self::Wamr($var) => $stmt,
#[cfg(feature = "wasmi")]
Self::Wasmi($var) => $stmt,
#[cfg(feature = "v8")]
Self::V8($var) => $stmt,
#[cfg(feature = "js")]
Self::Js($var) => $stmt,
#[cfg(feature = "jsc")]
Self::Jsc($var) => $stmt,
}
};
}
pub(crate) use {gen_rt_ty, match_rt};