Clarify example in comment

leo60228 · leo60228 · commit 8b307a1960c2 · 2019-08-02T15:37:47.000-04:00
diff --git a/text/0000-knowntypeid.md b/text/0000-knowntypeid.md
@@ -64,6 +64,7 @@ impl CanDoThing for DoesThing {
 
 impl dyn CanDoThing + 'static {
     pub fn is<T: CanDoThing + 'static>(&self) -> bool {
+        // `TypeId::of::<Self>()` would be `dyn CanDoThing`, not the "actual" type of Self
         TypeId::of::<T>() == self.type_id()
     }
     

Original file line number	Diff line number	Diff line change
`@@ -64,6 +64,7 @@ impl CanDoThing for DoesThing {`
`64`	`64`
`65`	`65`	`impl dyn CanDoThing + 'static {`
`66`	`66`	`pub fn is<T: CanDoThing + 'static>(&self) -> bool {`
	`67`	+ // `TypeId::of::<Self>()` would be `dyn CanDoThing`, not the "actual" type of Self
`67`	`68`	`TypeId::of::<T>() == self.type_id()`
`68`	`69`	`}`
`69`	`70`