hexedtech/jni-toolbox
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docs: simplify a bit example expansion

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remove recursive macro expansions basically
This commit is contained in:
əlemi 2024-09-24 02:51:59 +02:00
parent 3d3bc8b6d5
commit ef9237b74a
Signed by: alemi
GPG key ID: A4895B84D311642C
1 changed files with 9 additions and 48 deletions
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57
README.md
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@ -71,13 +71,11 @@ fn connect(config: Config) -> Result<Client, ConnectionError> {
generates a matching expanded function invoking it:
<details><summary>Show macro expansion</summary>
```rust
#[doc = " Connect using the given credentials to the default server, and return a [Client] to interact with it."]
fn connect(config: Config) -> Result<Client, ConnectionError> {
super::tokio().block_on(Client::connect(config))
}
#[no_mangle]
#[allow(unused_unit)]
pub extern "system" fn Java_mp_code_Client_connect<'local>(
@ -89,13 +87,7 @@ pub extern "system" fn Java_mp_code_Client_connect<'local>(
let config_new = match jni_toolbox::from_java_static::<Config>(&mut env, config) {
Ok(x) => x,
Err(e) => {
let _ = env.throw_new(
"java/lang/RuntimeException",
$crate::__export::must_use({
let res = $crate::fmt::format($crate::__export::format_args!("{e:?}"));
res
}),
);
let _ = env.throw_new("java/lang/RuntimeException", format!("{e:?}"));
return std::ptr::null_mut();
}
};
@ -104,36 +96,13 @@ pub extern "system" fn Java_mp_code_Client_connect<'local>(
let ret = match result {
Ok(x) => x,
Err(e) => match env_copy.find_class(e.jclass()) {
Err(e) => {
$crate::panicking::panic_fmt($crate::const_format_args!(
"error throwing Java exception -- failed resolving error class: {e}"
));
}
Ok(class) => match env_copy.new_string($crate::__export::must_use({
let res = $crate::fmt::format($crate::__export::format_args!("{e:?}"));
res
})) {
Err(e) => {
$crate::panicking::panic_fmt($crate::const_format_args!(
"error throwing Java exception -- failed creating error string: {e}"
));
}
Ok(msg) => match env_copy.new_object(
class,
"(Ljava/lang/String;)V",
&[jni::objects::JValueGen::Object(&msg)],
) {
Err(e) => {
$crate::panicking::panic_fmt($crate::const_format_args!(
"error throwing Java exception -- failed creating object: {e}"
));
}
Err(e) => panic!("error throwing Java exception -- failed resolving error class: {e}"),
Ok(class) => match env_copy.new_string(format!("{e:?}")) {
Err(e) => panic!("error throwing Java exception -- failed creating error string: {e}"),
Ok(msg) => match env_copy.new_object(class, "(Ljava/lang/String;)V", &[jni::objects::JValueGen::Object(&msg)]) {
Err(e) => panic!("error throwing Java exception -- failed creating object: {e}"));
Ok(obj) => match env_copy.throw(jni::objects::JThrowable::from(obj)) {
Err(e) => {
$crate::panicking::panic_fmt($crate::const_format_args!(
"error throwing Java exception -- failed throwing: {e}"
));
}
Err(e) => panic!("error throwing Java exception -- failed throwing: {e}"),
Ok(_) => return std::ptr::null_mut(),
},
},
@ -143,20 +112,12 @@ pub extern "system" fn Java_mp_code_Client_connect<'local>(
match ret.into_java(&mut env_copy) {
Ok(fin) => fin,
Err(e) => {
let _ = env_copy.throw_new(
"java/lang/RuntimeException",
$crate::__export::must_use({
let res = $crate::fmt::format($crate::__export::format_args!("{e:?}"));
res
}),
);
let _ = env_copy.throw_new("java/lang/RuntimeException", format!("{e:?}"));
std::ptr::null_mut()
}
}
}
```
</details>
## Status
This crate is early and intended mostly to maintain [`codemp`](https://github.com/hexedtech/codemp)'s Java bindings, so things not used