diff --git a/src/librustdoc/html/format.rs b/src/librustdoc/html/format.rs
index 01915c33a07ad..74b61f1555c6f 100644
--- a/src/librustdoc/html/format.rs
+++ b/src/librustdoc/html/format.rs
@@ -659,6 +659,8 @@ fn fmt_type(
use_absolute: bool,
cache: &Cache,
) -> fmt::Result {
+ debug!("fmt_type(t = {:?})", t);
+
match *t {
clean::Generic(name) => write!(f, "{}", name),
clean::ResolvedPath { did, ref param_names, ref path, is_generic } => {
@@ -675,21 +677,22 @@ fn fmt_type(
if f.alternate() {
write!(
f,
- "{}{:#}fn{:#}{:#}",
+ "{:#}{}{:#}fn{:#}",
+ decl.print_hrtb_with_space(cache),
decl.unsafety.print_with_space(),
print_abi_with_space(decl.abi),
- decl.print_generic_params(cache),
decl.decl.print(cache)
)
} else {
write!(
f,
- "{}{}",
+ "{}{}{}",
+ decl.print_hrtb_with_space(cache),
decl.unsafety.print_with_space(),
print_abi_with_space(decl.abi)
)?;
primitive_link(f, PrimitiveType::Fn, "fn", cache)?;
- write!(f, "{}{}", decl.print_generic_params(cache), decl.decl.print(cache))
+ write!(f, "{}", decl.decl.print(cache))
}
}
clean::Tuple(ref typs) => {
@@ -992,8 +995,14 @@ impl clean::FnRetTy {
}
impl clean::BareFunctionDecl {
- fn print_generic_params<'a>(&'a self, cache: &'a Cache) -> impl fmt::Display + 'a {
- comma_sep(self.generic_params.iter().map(move |g| g.print(cache)))
+ fn print_hrtb_with_space<'a>(&'a self, cache: &'a Cache) -> impl fmt::Display + 'a {
+ display_fn(move |f| {
+ if !self.generic_params.is_empty() {
+ write!(f, "for<{}> ", comma_sep(self.generic_params.iter().map(|g| g.print(cache))))
+ } else {
+ Ok(())
+ }
+ })
}
}
diff --git a/src/test/rustdoc/fn-type.rs b/src/test/rustdoc/fn-type.rs
new file mode 100644
index 0000000000000..f5e123aed9c47
--- /dev/null
+++ b/src/test/rustdoc/fn-type.rs
@@ -0,0 +1,15 @@
+// ignore-tidy-linelength
+
+#![crate_name = "foo"]
+#![crate_type = "lib"]
+
+pub struct Foo<'a, T> {
+ pub generic: fn(val: &T) -> T,
+
+ pub lifetime: fn(val: &'a i32) -> i32,
+ pub hrtb_lifetime: for<'b, 'c> fn(one: &'b i32, two: &'c &'b i32) -> (&'b i32, &'c i32),
+}
+
+// @has 'foo/struct.Foo.html' '//span[@id="structfield.generic"]' "generic: fn(val: &T) -> T"
+// @has 'foo/struct.Foo.html' '//span[@id="structfield.lifetime"]' "lifetime: fn(val: &'a i32) -> i32"
+// @has 'foo/struct.Foo.html' '//span[@id="structfield.hrtb_lifetime"]' "hrtb_lifetime: for<'b, 'c> fn(one: &'b i32, two: &'c &'b i32) -> (&'b i32, &'c i32)"
diff --git a/src/test/rustdoc/for-lifetime.rs b/src/test/rustdoc/for-lifetime.rs
new file mode 100644
index 0000000000000..299794b63b2ea
--- /dev/null
+++ b/src/test/rustdoc/for-lifetime.rs
@@ -0,0 +1,14 @@
+// ignore-tidy-linelength
+
+#![crate_name = "foo"]
+#![crate_type = "lib"]
+
+pub struct Foo {
+ pub some_func: for<'a> fn(val: &'a i32) -> i32,
+ pub some_trait: dyn for<'a> Trait<'a>,
+}
+
+// @has foo/struct.Foo.html '//span[@id="structfield.some_func"]' "some_func: for<'a> fn(val: &'a i32) -> i32"
+// @has foo/struct.Foo.html '//span[@id="structfield.some_trait"]' "some_trait: dyn Trait<'a>"
+
+pub trait Trait<'a> {}