Add a slide introducing dyn Trait in Generics
#2108
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Changes to Course ScheduleThis PR changes the course schedule. The new schedule is shown below. Fundamentals // Day 1 Morning2 hours and 5 minutes: (1 hour short)
Fundamentals // Day 1 Afternoon2 hours and 35 minutes: (25 minutes short)
Fundamentals // Day 2 Morning2 hours and 10 minutes: (55 minutes short)
Fundamentals // Day 2 Afternoon4 hours and 5 minutes (⏰ 1 hour and 5 minutes too long)
Fundamentals // Day 3 Morning2 hours and 20 minutes: (45 minutes short)
Fundamentals // Day 3 Afternoon1 hour and 55 minutes: (1 hour and 10 minutes short)
Fundamentals // Day 4 Morning2 hours and 40 minutes: (25 minutes short)
Fundamentals // Day 4 Afternoon2 hours and 10 minutes: (55 minutes short)
Android // Android10 minutes
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Didn't it used to be in the morning? iirc I moved it to the afternoon because I was consistently only getting through the pattern matching and methods sections in the morning. |
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Oh, you're right. We should probably adjust the timings to match! |
Ah yeah, i think we can just reduce the std types and traits to 1 hour each, that's closer to how much time I spend on each of those. Did you want me to do that in this PR? |
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Nope, I was just waiting for the |
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I've been thinking it'd be simpler to introduce
dyn Traitvia&dyn Traitrather than waiting for the smart pointers section andBox<dyn Trait>. This PR adds a slide to the Generics section that introduces&dyn Traitand compares it to&impl Trait, juxtaposing monomorphization and static dispatch against type-erasure and dynamic dispatch. I've then updated the existing trait object slide to call back to the earlier introduction, and call out that usingBox<dyn Trait>gives you an owned trait object rather than a borrowed one.