std: Rename Show/String to Debug/Display
This commit is an implementation of [RFC 565][rfc] which is a stabilization of the `std::fmt` module and the implementations of various formatting traits. Specifically, the following changes were performed: [rfc]: https://github.com/rust-lang/rfcs/blob/master/text/0565-show-string-guidelines.md * The `Show` trait is now deprecated, it was renamed to `Debug` * The `String` trait is now deprecated, it was renamed to `Display` * Many `Debug` and `Display` implementations were audited in accordance with the RFC and audited implementations now have the `#[stable]` attribute * Integers and floats no longer print a suffix * Smart pointers no longer print details that they are a smart pointer * Paths with `Debug` are now quoted and escape characters * The `unwrap` methods on `Result` now require `Display` instead of `Debug` * The `Error` trait no longer has a `detail` method and now requires that `Display` must be implemented. With the loss of `String`, this has moved into libcore. * `impl<E: Error> FromError<E> for Box<Error>` now exists * `derive(Show)` has been renamed to `derive(Debug)`. This is not currently warned about due to warnings being emitted on stage1+ While backwards compatibility is attempted to be maintained with a blanket implementation of `Display` for the old `String` trait (and the same for `Show`/`Debug`) this is still a breaking change due to primitives no longer implementing `String` as well as modifications such as `unwrap` and the `Error` trait. Most code is fairly straightforward to update with a rename or tweaks of method calls. [breaking-change] Closes #21436
This commit is contained in:
parent
29bd9a06ef
commit
3cb9fa26ef
136 changed files with 763 additions and 706 deletions
|
@ -1351,7 +1351,7 @@ impl<'a> Item<'a> {
|
|||
}
|
||||
|
||||
|
||||
impl<'a> fmt::String for Item<'a> {
|
||||
impl<'a> fmt::Display for Item<'a> {
|
||||
fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
|
||||
// Write the breadcrumb trail header for the top
|
||||
try!(write!(fmt, "\n<h1 class='fqn'><span class='in-band'>"));
|
||||
|
@ -1626,7 +1626,7 @@ fn item_module(w: &mut fmt::Formatter, cx: &Context,
|
|||
|
||||
struct Initializer<'a>(&'a str);
|
||||
|
||||
impl<'a> fmt::String for Initializer<'a> {
|
||||
impl<'a> fmt::Display for Initializer<'a> {
|
||||
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
|
||||
let Initializer(s) = *self;
|
||||
if s.len() == 0 { return Ok(()); }
|
||||
|
@ -2188,7 +2188,7 @@ fn item_typedef(w: &mut fmt::Formatter, it: &clean::Item,
|
|||
document(w, it)
|
||||
}
|
||||
|
||||
impl<'a> fmt::String for Sidebar<'a> {
|
||||
impl<'a> fmt::Display for Sidebar<'a> {
|
||||
fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
|
||||
let cx = self.cx;
|
||||
let it = self.item;
|
||||
|
@ -2243,7 +2243,7 @@ impl<'a> fmt::String for Sidebar<'a> {
|
|||
}
|
||||
}
|
||||
|
||||
impl<'a> fmt::String for Source<'a> {
|
||||
impl<'a> fmt::Display for Source<'a> {
|
||||
fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
|
||||
let Source(s) = *self;
|
||||
let lines = s.lines().count();
|
||||
|
|
Loading…
Add table
Add a link
Reference in a new issue