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| -rw-r--r-- | src/doc/reference.md | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/src/doc/reference.md b/src/doc/reference.md index 13288fbdbce..2fdc1be3e77 100644 --- a/src/doc/reference.md +++ b/src/doc/reference.md @@ -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. |