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Revise the E0072 explanation. #26202

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Jun 11, 2015
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Revise the E0072 explanation. #26202

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8 changes: 3 additions & 5 deletions src/librustc_typeck/diagnostics.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -495,11 +495,9 @@ struct ListNode {
This type cannot have a well-defined size, because it needs to be arbitrarily
large (since we would be able to nest `ListNode`s to any depth). Specifically,

```
size of ListNode = 1 byte for head
+ 1 byte for the discriminant of the Option
+ size of ListNode
```
size of `ListNode` = 1 byte for `head`
+ 1 byte for the discriminant of the `Option`
+ size of `ListNode`

One way to fix this is by wrapping `ListNode` in a `Box`, like so:

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