java

Foreign Function Interfaces for integrating Fusion with Java.

At present, these interfaces are incomplete and insufficient for real-world use cases. While java_new allows you to create Java objects and treat them as Fusion values, you can't do anything with such values, since the built-in operators only support concrete types that are not yet public.

See issue #63.

java_class procedure

(java_class name)

Return the java.lang.Class instance for the given fully-qualified class name.

Equivalent to the Java code Class.forName(name).

java_instance_of procedure

(java_instance_of value class)

Determines whether a value is an instance of the given Java class, returning true or false.

The class must be an instance of java.lang.Class, not a string.

For example, the following is always true because all values in the Fusion runtime are implemented by Java objects:

(java_instance_of anything (java_class "java.lang.Object"))

java_new procedure

(java_new classname arg ...)

Instantiates a new Fusion value that's implemented by a Java class. classname is the fully-qualified Java class name. A constructor with the appropriate number of Object arguments will be invoked and the result returned.