Does flash only compile what it needs to? Or does it always 'rebuild all'?

new to Flash -

I have a main FLA that loads and runs my entire flash/AS3 project. It always seems to take the same amount of time (~3 minutes) no matter what code has changed. Does Flash have the concept of makefiles? Is it always rebuil开发者_开发技巧ding all of my code?

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Yes, if you build within the Flash IDE, it builds the entire fla. For large projects, I break the project into different fla's, build them separately, and have the main fla dynamically load in other swf's.

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If you trigger the compiler manually, you can specify the "-incremental" flag or use the fcsh (Flex Compiler Shell). I would never compile a serious project from within the Flash IDE.

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In the Flash IDE it will always compile from the ground up.

In Flex, I believe the default behavior is to only compile MXML files that have changed. But I suppose it varies by project settings.