rust/src/librustc/util
Sean McArthur 44440e5c18 core: split into fmt::Show and fmt::String
fmt::Show is for debugging, and can and should be implemented for
all public types. This trait is used with `{:?}` syntax. There still
exists #[derive(Show)].

fmt::String is for types that faithfully be represented as a String.
Because of this, there is no way to derive fmt::String, all
implementations must be purposeful. It is used by the default format
syntax, `{}`.

This will break most instances of `{}`, since that now requires the type
to impl fmt::String. In most cases, replacing `{}` with `{:?}` is the
correct fix. Types that were being printed specifically for users should
receive a fmt::String implementation to fix this.

Part of #20013

[breaking-change]
2015-01-06 14:49:42 -08:00
..
common.rs core: split into fmt::Show and fmt::String 2015-01-06 14:49:42 -08:00
lev_distance.rs Remove deprecated functionality 2015-01-03 23:43:57 -08:00
nodemap.rs Fallout 2015-01-06 14:20:48 +13:00
ppaux.rs core: split into fmt::Show and fmt::String 2015-01-06 14:49:42 -08:00
snapshot_vec.rs sed -i -s 's/#\[deriving(/#\[derive(/g' **/*.rs 2015-01-03 22:54:18 -05:00