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Doc lowlevel details
Corey Richardson edited this page May 8, 2013
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Generics are statically-compiled, specialized for each type. Using traits as objects is runtime dispatch. Example:
fn foo(a: ToStr);
fn bar<T: ToStr>(a: T);At runtime, foo is represented as a "fat pointer", a pointer to a vtable for ToStr and a pointer to the data. bar is specialized at compile-time for every type it is used with.