#[macro_export]
macro_rules! func {
($func:expr) => {{
$crate::Func::new($func)
}};
}
#[macro_export]
macro_rules! imports {
( $( $ns_name:expr => $ns:tt ),* $(,)? ) => {{
use $crate::{
import::{ImportObject, Namespace},
};
let mut import_object = ImportObject::new();
$({
let ns = $crate::__imports_internal!($ns);
import_object.register($ns_name, ns);
})*
import_object
}};
($state_gen:expr, $( $ns_name:expr => $ns:tt ),* $(,)? ) => {{
use $crate::{
import::{ImportObject, Namespace},
};
let mut import_object = ImportObject::new_with_data($state_gen);
$({
let ns = $crate::__imports_internal!($ns);
import_object.register($ns_name, ns);
})*
import_object
}};
}
#[macro_export]
#[doc(hidden)]
macro_rules! __imports_internal {
( { $( $imp_name:expr => $import_item:expr ),* $(,)? } ) => {{
let mut ns = Namespace::new();
$(
ns.insert($imp_name, $import_item);
)*
ns
}};
($ns:ident) => {
$ns
};
}
#[macro_export]
#[doc(hidden)]
macro_rules! namespace {
( $( $imp_name:expr => $import_item:expr ),* $(,)? ) => {{
let mut ns = $crate::import::Namespace::new();
$(
ns.insert($imp_name, $import_item);
)*
ns
}};
}
#[cfg(test)]
mod test {
fn func(arg: i32) -> i32 {
arg + 1
}
#[test]
fn imports_macro_allows_trailing_comma_and_none() {
let _ = imports! {
"env" => {
"func" => func!(func),
},
};
let _ = imports! {
"env" => {
"func" => func!(func),
}
};
let _ = imports! {
"env" => {
"func" => func!(func),
},
"abc" => {
"def" => func!(func),
}
};
let _ = imports! {
"env" => {
"func" => func!(func)
},
};
let _ = imports! {
"env" => {
"func" => func!(func)
}
};
let _ = imports! {
"env" => {
"func1" => func!(func),
"func2" => func!(func)
}
};
let _ = imports! {
"env" => {
"func1" => func!(func),
"func2" => func!(func),
}
};
}
#[test]
fn imports_macro_allows_trailing_comma_and_none_with_state() {
use std::{ffi, ptr};
fn dtor(_arg: *mut ffi::c_void) {}
fn state_creator() -> (*mut ffi::c_void, fn(*mut ffi::c_void)) {
(ptr::null_mut() as *mut ffi::c_void, dtor)
}
let _ = imports! {
state_creator,
"env" => {
"func1" => func!(func),
"func2" => func!(func),
}
};
let _ = imports! {
state_creator,
"env" => {
"func1" => func!(func),
"func2" => func!(func)
},
};
let _ = imports! {
state_creator,
"env" => {
"func1" => func!(func),
"func2" => func!(func),
},
};
}
}