Crate duchess

Experiments with Java-Rust interop.

Re-exports

• pub use prelude::*;

Modules

• java
  Contains reusable declarations for classes distributed by the JDK under the java.* packages.
• prelude
  Contains traits with methods expected to be invoked by end-users.

Macros

• java_package
  The main duchess macro, used like so

Structs

• Java
  An owned reference to a non-null Java object of type T.
• JavaFunction
• Jvm
  Represents a handle to a running JVM. You rarely access this explicitly as a duchess user.
• Local
  An owned local reference to a non-null Java object of type T. The reference will be freed when dropped. Cannot be shared across threads or [Jvm::with] invocations.
• Null
• NullJRef
  Marker type used to indicate an attempt to dereference a null java reference. See TryJDeref trait.
• TryCatch

Enums

• Error

Traits

• AsJRef
  Possibly null reference to a Java object.
• IntoRust
  Types that are able to be converted back into a Rust T, either because they will produce a Rust primitive T or or because we can convert into them via a JNI call.
• JDeref
  Reference to a Java object that cannot be null (e.g., Java<java::lang::Object>).
• JavaObject
  A trait for zero-sized dummy types that represent Java object types.
• JavaType
• TryJDeref
  Reference to a Java object that may or may not be null. Implemented both by non-null references like Java<java::lang::Object> or &java::lang::Object and by maybe-null references like Option<Java<java::lang::Object>>.

Type Aliases

• LocalResult
  Result returned by most Java operations that may contain a local reference to a thrown exception.
• Nullable
• Result
  Result returned by crate::Jvm::with() that will store any uncaught exception as a global reference.

Attribute Macros

• java_function

Derive Macros

• ToJava
• ToRust