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minor: add a test for derive macros in core

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This commit is contained in:
Aleksey Kladov 2021-10-10 16:13:45 +03:00
parent 5af80d8372
commit a88344152d
2 changed files with 21 additions and 0 deletions
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20
crates/hir_def/src/macro_expansion_tests/builtin_derive_macro.rs
View File

@ -20,6 +20,26 @@ impl < > core::marker::Copy for Foo< > {}"##]],
);
}
#[test]
fn test_copy_expand_in_core() {
cov_mark::check!(test_copy_expand_in_core);
check(
r#"
#[rustc_builtin_macro]
macro Copy {}
#[derive(Copy)]
struct Foo;
"#,
expect![[r##"
#[rustc_builtin_macro]
macro Copy {}
#[derive(Copy)]
struct Foo;
impl < > crate ::marker::Copy for Foo< > {}"##]],
);
}
#[test]
fn test_copy_expand_with_type_params() {
check(

1
crates/hir_expand/src/builtin_derive_macro.rs
View File

@ -176,6 +176,7 @@ fn find_builtin_crate(db: &dyn AstDatabase, id: MacroCallId) -> tt::TokenTree {
let tt = if cg[krate].dependencies.iter().any(|dep| &*dep.name == "core") {
quote! { core }
} else {
cov_mark::hit!(test_copy_expand_in_core);
quote! { crate }
};