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Isn't the "scripting" part just automatically compiling behind the scenes before running? It's not an interpreter or a VM. So the code runs just as fast as the
by lobster_johnson 10y ago
Isn't the "scripting" part just automatically compiling behind the scenes before running? It's not an interpreter or a VM. So the code runs just as fast as the compiled version, it's just that you pay a startup cost.
- tarentel 10y agoThat's true between a debug build and just running it as a script I believe. But a release version will be optimized, I imagine if they compared a debug build to the scripted version they'd perform similarly.
- nicky0 10y agoCan confirm, Debug build runs in similar time to script.
- Someone 10y agoDifference is that Release builds do whole-module optimization in Swift 3. That allows for more aggressive code specialization and inlining and can remove more reference count updates (https://swift.org/blog/whole-module-optimizations/ https://swift.org/blog/whole-module-optimizations/)