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reference: vtable entries: copy @nikomatsakis's wording

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Ivan Kozik 2016-02-18 19:16:56 +00:00
parent 347a257a47
commit 58f0d72d90
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src/doc/reference.md
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@ -3564,8 +3564,9 @@ Each instance of a trait object includes:
each method of `SomeTrait` that `T` implements, a pointer to `T`'s
implementation (i.e. a function pointer).
The purpose of trait objects is to permit "late binding" of methods. A call to
a method on a trait object is only resolved to a vtable entry at runtime.
The purpose of trait objects is to permit "late binding" of methods. Calling a
method on a trait object results in virtual dispatch at runtime: that is, a
function pointer is loaded from the trait object vtable and invoked indirectly.
The actual implementation for each vtable entry can vary on an object-by-object
basis.