Comments (3)
Simple test from Peter Nagy:
^:public
(jise/defclass IsFinal
^:public ^:static ^long
(defm test [^int y]
(let [x 100]
(set! x (+ x y))
(.println System/out x)
(set! x (+ x y))
(+ x x))))
// Decompiling class: phoenix/flake/IsFinal
package phoenix.flake;
public class IsFinal
{
public static long test(final int y) {
final int x = 100 + y;
System.out.println(x);
final int n = x + y;
return n + n;
}
}
from jise.
clj-decompiler may be wrong
from jise.
Thank you for the feedback!
After some investigation, I'm figuring out what is going on. Finality information for local variables is not retained in the JVM bytecode and it only exists at compile time (as contrasted with fieldsโ finality, which is embedded as an access flag in the bytecode). So, nobody knows which local variable was declared final from the generated bytecode.
Probably, clj-java-decompiler (or its dependant library) infers a local variable to be declared final unless the decompiler witnesses an assignment for it. In fact, another Java decompiler JD doesn't seem to emit final
at all for the same code:
package example.aobench;
class IsFinal {
public static long test(int paramInt) {
int i = 100;
i += paramInt;
System.out
.println(i);
i += paramInt;
return (i + i);
}
}
from jise.
Related Issues (11)
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