Unity compilation process - JIT and AOT?

Question

In the docs, it seems Unity compiles all scripts to dlls, which are JIT compiled at runtime. http://docs.unity3d.com/Documentation/ScriptReference/index.Script_compilation_28Advanced29.html

Is JIT always used?

Where does AOT fit in, and is AOT done only for some platforms? Are both AOT and JIT used for each platform?

When AOT-compiled, do we lose any functionality?

Answer 1

Answer by Graham-Dunnett · Nov 11, 2012 at 09:48 PM

On iOS devices scripting languages are explicitly prohibited by Apple, so on that platform we AOT (ahead-of-time) compile the code into assembler during the build process. When you use AOT reflection is not supported, since this typically generates c# at run-time.

Add comment · Show 3 · Share

ina · Nov 12, 2012 at 04:29 AM 0

Share

HI Graham, can you explain how components relate to AOT/JIT, i.e., are Unity components compiled to their own assembly http://answers.unity3d.com/questions/346501/unity-as-a-components-based-system.html

ina · Nov 12, 2012 at 11:24 AM 0

Share

Here's possibly a better question - http://answers.unity3d.com/questions/346881/how-does-unity-compilation-work.html

samizzo · Nov 26, 2013 at 11:35 PM 0

Share

On iOS, scripting languages aren't prohibited, you just aren't allowed to dynamically generate code. So you can use a scripting language with an interpreter, but you can't use a JIT interpreter or any kind of interpreter that dynamically compiles to native code.

Unity compilation process - JIT and AOT?

1 Reply

Your answer

Welcome to Unity Answers

Follow this Question

Related Questions