Returns type names with a specifiable number of module segments as a String.
Add the following to Cargo.toml
tynm = "0.1.10"In code:
#[rustfmt::skip]
assert_eq!(
core::any::type_name::<Option<String>>(), "core::option::Option<alloc::string::String>"
);
#[rustfmt::skip]
let tuples = vec![
(tynm::type_name::<Option<String>>(), "Option<String>"),
(tynm::type_namem::<Option<String>>(1), "core::..::Option<alloc::..::String>"),
(tynm::type_namen::<Option<String>>(1), "..::option::Option<..::string::String>"),
// 1 segment from most and least significant modules.
(tynm::type_namemn::<rust_out::two::three::Struct>(1, 1), "rust_out::..::three::Struct"),
// traits
(tynm::type_name::<dyn core::fmt::Debug>(), "dyn Debug"),
];
tuples
.iter()
.for_each(|(left, right)| assert_eq!(left, right));The core::any::type_name function stabilized in Rust 1.38 returns the fully qualified type
name with all module segments. This can be difficult to read in error messages, especially for
type-parameterized types.
Often, the simple type name is more readable, and enough to distinguish the type referenced in an error.
Licensed under either of
- Apache License, Version 2.0, (LICENSE-APACHE or https://www.apache.org/licenses/LICENSE-2.0)
- MIT license (LICENSE-MIT or https://opensource.org/licenses/MIT)
at your option.
Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.
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