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Fix display of const generics in rustdoc

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This commit is contained in:
Guillaume Gomez 2019-05-12 16:53:39 +02:00
parent 548add7f61
commit 2caeaf54a1
3 changed files with 35 additions and 4 deletions
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5
src/librustdoc/clean/mod.rs
View File

@ -3149,7 +3149,10 @@ impl<'tcx> Clean<Constant> for ty::Const<'tcx> {
fn clean(&self, cx: &DocContext<'_>) -> Constant {
Constant {
type_: self.ty.clean(cx),
expr: format!("{:?}", self.val), // FIXME(const_generics)
expr: match self.val {
ConstValue::Param(ty::ParamConst { name, .. }) => format!("{}", name),
e => format!("{:?}", e), // FIXME generic consts with expressions
},
}
}
}

4
src/librustdoc/html/format.rs
View File

@ -262,9 +262,7 @@ impl fmt::Display for clean::Lifetime {
impl fmt::Display for clean::Constant {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
fmt::Display::fmt(&self.expr, f)?;
f.write_str(": ")?;
fmt::Display::fmt(&self.type_, f)
fmt::Display::fmt(&self.expr, f)
}
}

30
src/test/rustdoc/generic-const.rs Normal file
View File

@ -0,0 +1,30 @@
#![feature(const_generics)]
#![crate_name = "foo"]
// ignore-tidy-linelength
pub enum Order {
Sorted,
Unsorted,
}
// @has foo/struct.VSet.html '//pre[@class="rust struct"]' 'pub struct VSet<T, const ORDER: Order>'
// @has foo/struct.VSet.html '//h3[@id="impl-Send"]/code' 'impl<const ORDER: Order, T> Send for VSet<T, ORDER>'
// @has foo/struct.VSet.html '//h3[@id="impl-Sync"]/code' 'impl<const ORDER: Order, T> Sync for VSet<T, ORDER>'
pub struct VSet<T, const ORDER: Order> {
inner: Vec<T>,
}
// @has foo/struct.VSet.html '//h3[@id="impl"]/code' 'impl<T> VSet<T, { Order::Sorted }>'
impl <T> VSet<T, {Order::Sorted}> {
pub fn new() -> Self {
Self { inner: Vec::new() }
}
}
// @has foo/struct.VSet.html '//h3[@id="impl-1"]/code' 'impl<T> VSet<T, { Order::Unsorted }>'
impl <T> VSet<T, {Order::Unsorted}> {
pub fn new() -> Self {
Self { inner: Vec::new() }
}
}