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| author | Lzu Tao <taolzu@gmail.com> | 2019-10-16 16:50:07 +0000 |
|---|---|---|
| committer | Lzu Tao <taolzu@gmail.com> | 2019-10-16 16:54:04 +0000 |
| commit | 940d48ed6021541d5e9576873982f68967d4ec87 (patch) | |
| tree | c2b69ffcca19401e07aa624c9c42cf4697d0277c /src | |
| parent | 53aca553ec08e62a0591806fcf0f706ee9f53778 (diff) | |
| download | rust-940d48ed6021541d5e9576873982f68967d4ec87.tar.gz rust-940d48ed6021541d5e9576873982f68967d4ec87.zip | |
add example for type_name
Diffstat (limited to 'src')
| -rw-r--r-- | src/libcore/any.rs | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/libcore/any.rs b/src/libcore/any.rs index f75b7a45443..e2704e807d1 100644 --- a/src/libcore/any.rs +++ b/src/libcore/any.rs @@ -445,6 +445,15 @@ impl TypeId { /// /// The current implementation uses the same infrastructure as compiler /// diagnostics and debuginfo, but this is not guaranteed. +/// +/// # Example +/// +/// ```rust +/// assert_eq!( +/// std::any::type_name::<Option<String>>(), +/// "core::option::Option<alloc::string::String>", +/// ); +/// ``` #[stable(feature = "type_name", since = "1.38.0")] #[rustc_const_unstable(feature = "const_type_name")] pub const fn type_name<T: ?Sized>() -> &'static str { |