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Auto merge of #13329 - Veykril:rustc-proc-macro, r=Veykril

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Use $crate instead of std for panic builtin_fn_macro

This should be closer to the expected output and gets rid of a few type mismatches in rustc/library
This commit is contained in:
bors 2022-10-10 21:35:07 +00:00
commit 21319d135f
2 changed files with 19 additions and 19 deletions
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24
crates/hir-def/src/macro_expansion_tests/builtin_fn_macro.rs
View file

@ -93,12 +93,12 @@ macro_rules! option_env {() => {}}
fn main() { option_env!("TEST_ENV_VAR"); }
"#,
expect![[r##"
expect![[r#"
#[rustc_builtin_macro]
macro_rules! option_env {() => {}}
fn main() { std::option::Option::None:: < &str>; }
"##]],
fn main() { $crate::option::Option::None:: < &str>; }
"#]],
);
}
@ -191,7 +191,7 @@ fn main() {
format_args!("{} {:?}", arg1(a, b, c), arg2);
}
"#,
expect![[r##"
expect![[r#"
#[rustc_builtin_macro]
macro_rules! format_args {
($fmt:expr) => ({ /* compiler built-in */ });
@ -199,9 +199,9 @@ macro_rules! format_args {
}
fn main() {
std::fmt::Arguments::new_v1(&[], &[std::fmt::ArgumentV1::new(&(arg1(a, b, c)), std::fmt::Display::fmt), std::fmt::ArgumentV1::new(&(arg2), std::fmt::Display::fmt), ]);
$crate::fmt::Arguments::new_v1(&[], &[$crate::fmt::ArgumentV1::new(&(arg1(a, b, c)), $crate::fmt::Display::fmt), $crate::fmt::ArgumentV1::new(&(arg2), $crate::fmt::Display::fmt), ]);
}
"##]],
"#]],
);
}
@ -219,7 +219,7 @@ fn main() {
format_args!("{} {:?}", a::<A,B>(), b);
}
"#,
expect![[r##"
expect![[r#"
#[rustc_builtin_macro]
macro_rules! format_args {
($fmt:expr) => ({ /* compiler built-in */ });
@ -227,9 +227,9 @@ macro_rules! format_args {
}
fn main() {
std::fmt::Arguments::new_v1(&[], &[std::fmt::ArgumentV1::new(&(a::<A, B>()), std::fmt::Display::fmt), std::fmt::ArgumentV1::new(&(b), std::fmt::Display::fmt), ]);
$crate::fmt::Arguments::new_v1(&[], &[$crate::fmt::ArgumentV1::new(&(a::<A, B>()), $crate::fmt::Display::fmt), $crate::fmt::ArgumentV1::new(&(b), $crate::fmt::Display::fmt), ]);
}
"##]],
"#]],
);
}
@ -248,7 +248,7 @@ fn main() {
format_args!/*+errors*/("{} {:?}", a.);
}
"#,
expect![[r##"
expect![[r#"
#[rustc_builtin_macro]
macro_rules! format_args {
($fmt:expr) => ({ /* compiler built-in */ });
@ -258,9 +258,9 @@ macro_rules! format_args {
fn main() {
let _ =
/* parse error: expected field name or number */
std::fmt::Arguments::new_v1(&[], &[std::fmt::ArgumentV1::new(&(a.), std::fmt::Display::fmt), ]);
$crate::fmt::Arguments::new_v1(&[], &[$crate::fmt::ArgumentV1::new(&(a.), $crate::fmt::Display::fmt), ]);
}
"##]],
"#]],
);
}

14
crates/hir-expand/src/builtin_fn_macro.rs
View file

@ -238,9 +238,9 @@ fn format_args_expand(
) -> ExpandResult<tt::Subtree> {
// We expand `format_args!("", a1, a2)` to
// ```
// std::fmt::Arguments::new_v1(&[], &[
// std::fmt::ArgumentV1::new(&arg1,std::fmt::Display::fmt),
// std::fmt::ArgumentV1::new(&arg2,std::fmt::Display::fmt),
// $crate::fmt::Arguments::new_v1(&[], &[
// $crate::fmt::ArgumentV1::new(&arg1,$crate::fmt::Display::fmt),
// $crate::fmt::ArgumentV1::new(&arg2,$crate::fmt::Display::fmt),
// ])
// ```,
// which is still not really correct, but close enough for now
@ -262,10 +262,10 @@ fn format_args_expand(
}
let _format_string = args.remove(0);
let arg_tts = args.into_iter().flat_map(|arg| {
quote! { std::fmt::ArgumentV1::new(&(#arg), std::fmt::Display::fmt), }
quote! { #DOLLAR_CRATE::fmt::ArgumentV1::new(&(#arg), #DOLLAR_CRATE::fmt::Display::fmt), }
}.token_trees);
let expanded = quote! {
std::fmt::Arguments::new_v1(&[], &[##arg_tts])
#DOLLAR_CRATE::fmt::Arguments::new_v1(&[], &[##arg_tts])
};
ExpandResult::ok(expanded)
}
@ -675,8 +675,8 @@ fn option_env_expand(
};
let expanded = match get_env_inner(db, arg_id, &key) {
None => quote! { std::option::Option::None::<&str> },
Some(s) => quote! { std::option::Some(#s) },
None => quote! { #DOLLAR_CRATE::option::Option::None::<&str> },
Some(s) => quote! { #DOLLAR_CRATE::option::Some(#s) },
};
ExpandResult::ok(ExpandedEager::new(expanded))