feat: robusta_jni

This commit is contained in:
2021-04-10 00:12:55 +08:00
parent 8b2c84b8bc
commit f8c96be6a9
7 changed files with 571 additions and 0 deletions

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__ffi/robusta_jni/Cargo.lock generated Normal file
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[package]
name = "robusta_jni"
version = "0.1.0"
authors = ["Hatter Jiang <jht5945@gmail.com>"]
edition = "2018"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[lib]
crate-type = ["cdylib"]
[dependencies]
robusta_jni = "0.1"
jni = "0.17.0"

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Github: https://github.com/giovanniberti/robusta

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package com.example.robusta;
import java.util.*;
class HelloWorld {
private static native ArrayList<String> special(ArrayList<Integer> input1, int in2);
// pub extern "java" fn staticJavaAdd(i: i32, u: i32) -> i32 {}
public static int staticJavaAdd(int i, int u) {
return i + u;
}
// pub extern "java" fn javaAdd(&self, i: i32, u: i32) -> i32 {}
public int javaAdd(int i, int u) {
return i + u;
}
public String javaAdd(String i, int f, String u) {
return i + u;
}
// pub extern "jni" fn nativeFun(self, static_call: bool) -> i32
public native int nativeFun(boolean staticCall);
static {
System.loadLibrary("robusta_jni");
}
public static void main(String[] args) {
ArrayList<String> output = HelloWorld.special(new ArrayList<Integer>(List.of(1, 2, 3)), 4);
System.out.println(output);
HelloWorld h = new HelloWorld();
System.out.println(h.nativeFun(false));
System.out.println(h.nativeFun(true));
}
}

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_:
@just --list
build:
cargo build
java_run: build
javac com/example/robusta/HelloWorld.java && RUST_BACKTRACE=full java -Djava.library.path=../target/debug com.example.robusta.HelloWorld

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use robusta_jni::bridge;
#[bridge]
mod jni {
use robusta_jni::convert::{Signature, IntoJavaValue, FromJavaValue, TryIntoJavaValue, TryFromJavaValue};
use robusta_jni::jni::JNIEnv;
use robusta_jni::jni::objects::AutoLocal;
use robusta_jni::jni::errors::Result as JniResult;
#[derive(Signature, TryIntoJavaValue, IntoJavaValue, FromJavaValue, TryFromJavaValue)]
#[package(com.example.robusta)]
pub struct HelloWorld<'env: 'borrow, 'borrow> {
#[instance]
raw: AutoLocal<'env, 'borrow>
}
impl<'env: 'borrow, 'borrow> HelloWorld<'env, 'borrow> {
#[constructor]
pub extern "java" fn new(env: &'borrow JNIEnv<'env>) -> JniResult<Self> {}
pub extern "jni" fn special(mut input1: Vec<i32>, input2: i32) -> Vec<String> {
input1.push(input2);
input1.iter().map(ToString::to_string).collect()
}
#[call_type(unchecked)]
pub extern "jni" fn nativeFun(self, _env: &JNIEnv, static_call: bool) -> i32 {
if static_call {
HelloWorld::staticJavaAdd(_env, 1, 2)
} else {
self.javaAdd(_env, 1, 2).unwrap()
}
}
pub extern "java" fn javaAdd(
&self,
_env: &JNIEnv,
i: i32,
u: i32,
) -> JniResult<i32> {}
#[call_type(unchecked)]
pub extern "java" fn staticJavaAdd(env: &JNIEnv, i: i32, u: i32) -> i32 {}
}
}