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Diffstat (limited to '')
-rw-r--r-- | third_party/rust/darling/tests/defaults.rs | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/third_party/rust/darling/tests/defaults.rs b/third_party/rust/darling/tests/defaults.rs new file mode 100644 index 0000000000..c6003ec4ba --- /dev/null +++ b/third_party/rust/darling/tests/defaults.rs @@ -0,0 +1,32 @@ +#[macro_use] +extern crate darling; +#[macro_use] +extern crate quote; +#[macro_use] +extern crate syn; + +use darling::FromDeriveInput; + +mod foo { + pub mod bar { + pub fn init() -> String { + String::from("hello") + } + } +} + +#[derive(FromDeriveInput)] +#[darling(attributes(speak))] +pub struct SpeakerOpts { + #[darling(default="foo::bar::init")] + first_word: String, +} + +#[test] +fn path_default() { + let speaker: SpeakerOpts = FromDeriveInput::from_derive_input(&parse_quote! { + struct Foo; + }).expect("Unit struct with no attrs should parse"); + + assert_eq!(speaker.first_word, "hello"); +}
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