java-spaghetti 0.2.0

Glue code to accompany the java-spaghetti code generator for binding to JVM APIs from Rust
Documentation 
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use jni_sys::*;

#[doc(hidden)] // You should generally not be interacting with this type directly, but it must be public for codegen.
/// By implementing this you assert that you're constructing a valid jvalue for the given argument type (e.g. valid
/// jobject pointer if the function is supposed to take a jobject)
pub unsafe trait AsJValue {
    fn as_jvalue(&self) -> jvalue;
}

unsafe impl AsJValue for bool {
    fn as_jvalue(&self) -> jvalue {
        jvalue {
            z: if *self { JNI_TRUE } else { JNI_FALSE },
        }
    }
}
unsafe impl AsJValue for jbyte {
    fn as_jvalue(&self) -> jvalue {
        jvalue { b: *self }
    }
}
unsafe impl AsJValue for jchar {
    fn as_jvalue(&self) -> jvalue {
        jvalue { c: *self }
    }
}
unsafe impl AsJValue for jshort {
    fn as_jvalue(&self) -> jvalue {
        jvalue { s: *self }
    }
}
unsafe impl AsJValue for jint {
    fn as_jvalue(&self) -> jvalue {
        jvalue { i: *self }
    }
}
unsafe impl AsJValue for jlong {
    fn as_jvalue(&self) -> jvalue {
        jvalue { j: *self }
    }
}
unsafe impl AsJValue for jfloat {
    fn as_jvalue(&self) -> jvalue {
        jvalue { f: *self }
    }
}
unsafe impl AsJValue for jdouble {
    fn as_jvalue(&self) -> jvalue {
        jvalue { d: *self }
    }
}
//unsafe impl AsJValue for jobject  { fn as_jvalue(&self) -> jvalue { jvalue { l: *self } } } // do NOT implement, no guarantee any given jobject is actually safe!