Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

Add more proc-macro attribute tests #82643

Merged
merged 1 commit into from
Mar 1, 2021
Merged

Add more proc-macro attribute tests #82643

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Jump to
Jump to file
Failed to load files.
Diff view
Diff view
26 changes: 26 additions & 0 deletions src/test/ui/proc-macro/attr-complex-fn.rs
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,26 @@
// check-pass
// compile-flags: -Z span-debug --error-format human
// aux-build:test-macros.rs

#![feature(stmt_expr_attributes)]
#![feature(custom_inner_attributes)]
#![feature(rustc_attrs)]

#![no_std] // Don't load unnecessary hygiene information from std
extern crate std;

#[macro_use]
extern crate test_macros;

trait MyTrait<T> {}
struct MyStruct<const N: bool>;

#[print_attr]
fn foo<T: MyTrait<MyStruct<{ true }>>>() {}

impl<T> MyTrait<T> for MyStruct<{true}> {
#![print_attr]
#![rustc_dummy]
}

fn main() {}
171 changes: 171 additions & 0 deletions src/test/ui/proc-macro/attr-complex-fn.stdout
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,171 @@
PRINT-ATTR INPUT (DISPLAY): fn foo < T : MyTrait < MyStruct < { true } >> > () { }
PRINT-ATTR INPUT (DEBUG): TokenStream [
Ident {
ident: "fn",
span: $DIR/attr-complex-fn.rs:19:1: 19:3 (#0),
},
Ident {
ident: "foo",
span: $DIR/attr-complex-fn.rs:19:4: 19:7 (#0),
},
Punct {
ch: '<',
spacing: Alone,
span: $DIR/attr-complex-fn.rs:19:7: 19:8 (#0),
},
Ident {
ident: "T",
span: $DIR/attr-complex-fn.rs:19:8: 19:9 (#0),
},
Punct {
ch: ':',
spacing: Alone,
span: $DIR/attr-complex-fn.rs:19:9: 19:10 (#0),
},
Ident {
ident: "MyTrait",
span: $DIR/attr-complex-fn.rs:19:11: 19:18 (#0),
},
Punct {
ch: '<',
spacing: Alone,
span: $DIR/attr-complex-fn.rs:19:18: 19:19 (#0),
},
Ident {
ident: "MyStruct",
span: $DIR/attr-complex-fn.rs:19:19: 19:27 (#0),
},
Punct {
ch: '<',
spacing: Alone,
span: $DIR/attr-complex-fn.rs:19:27: 19:28 (#0),
},
Group {
delimiter: Brace,
stream: TokenStream [
Ident {
ident: "true",
span: $DIR/attr-complex-fn.rs:19:30: 19:34 (#0),
},
],
span: $DIR/attr-complex-fn.rs:19:28: 19:36 (#0),
},
Punct {
ch: '>',
spacing: Joint,
span: $DIR/attr-complex-fn.rs:19:36: 19:38 (#0),
},
Punct {
ch: '>',
spacing: Joint,
span: $DIR/attr-complex-fn.rs:19:36: 19:38 (#0),
},
Punct {
ch: '>',
spacing: Alone,
span: $DIR/attr-complex-fn.rs:19:38: 19:39 (#0),
},
Group {
delimiter: Parenthesis,
stream: TokenStream [],
span: $DIR/attr-complex-fn.rs:19:39: 19:41 (#0),
},
Group {
delimiter: Brace,
stream: TokenStream [],
span: $DIR/attr-complex-fn.rs:19:42: 19:44 (#0),
},
]
PRINT-ATTR INPUT (DISPLAY): impl < T > MyTrait < T > for MyStruct < { true } > { # ! [rustc_dummy] }
PRINT-ATTR INPUT (DEBUG): TokenStream [
Ident {
ident: "impl",
span: $DIR/attr-complex-fn.rs:21:1: 24:2 (#0),
},
Punct {
ch: '<',
spacing: Alone,
span: $DIR/attr-complex-fn.rs:21:1: 24:2 (#0),
},
Ident {
ident: "T",
span: $DIR/attr-complex-fn.rs:21:1: 24:2 (#0),
},
Punct {
ch: '>',
spacing: Alone,
span: $DIR/attr-complex-fn.rs:21:1: 24:2 (#0),
},
Ident {
ident: "MyTrait",
span: $DIR/attr-complex-fn.rs:21:1: 24:2 (#0),
},
Punct {
ch: '<',
spacing: Alone,
span: $DIR/attr-complex-fn.rs:21:1: 24:2 (#0),
},
Ident {
ident: "T",
span: $DIR/attr-complex-fn.rs:21:1: 24:2 (#0),
},
Punct {
ch: '>',
spacing: Alone,
span: $DIR/attr-complex-fn.rs:21:1: 24:2 (#0),
},
Ident {
ident: "for",
span: $DIR/attr-complex-fn.rs:21:1: 24:2 (#0),
},
Ident {
ident: "MyStruct",
span: $DIR/attr-complex-fn.rs:21:1: 24:2 (#0),
},
Punct {
ch: '<',
spacing: Alone,
span: $DIR/attr-complex-fn.rs:21:1: 24:2 (#0),
},
Group {
delimiter: Brace,
stream: TokenStream [
Ident {
ident: "true",
span: $DIR/attr-complex-fn.rs:21:1: 24:2 (#0),
},
],
span: $DIR/attr-complex-fn.rs:21:1: 24:2 (#0),
},
Punct {
ch: '>',
spacing: Alone,
span: $DIR/attr-complex-fn.rs:21:1: 24:2 (#0),
},
Group {
delimiter: Brace,
stream: TokenStream [
Punct {
ch: '#',
spacing: Joint,
span: $DIR/attr-complex-fn.rs:21:1: 24:2 (#0),
},
Punct {
ch: '!',
spacing: Alone,
span: $DIR/attr-complex-fn.rs:21:1: 24:2 (#0),
},
Group {
delimiter: Bracket,
stream: TokenStream [
Ident {
ident: "rustc_dummy",
span: $DIR/attr-complex-fn.rs:21:1: 24:2 (#0),
},
],
span: $DIR/attr-complex-fn.rs:21:1: 24:2 (#0),
},
],
span: $DIR/attr-complex-fn.rs:21:1: 24:2 (#0),
},
]
14 changes: 14 additions & 0 deletions src/test/ui/proc-macro/auxiliary/test-macros.rs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -128,6 +128,20 @@ pub fn print_attr_args(args: TokenStream, input: TokenStream) -> TokenStream {
input
}

#[proc_macro_attribute]
pub fn print_target_and_args(args: TokenStream, input: TokenStream) -> TokenStream {
print_helper(args, "ATTR_ARGS");
print_helper(input.clone(), "ATTR");
input
}

#[proc_macro_attribute]
pub fn print_target_and_args_consume(args: TokenStream, input: TokenStream) -> TokenStream {
print_helper(args, "ATTR_ARGS");
print_helper(input.clone(), "ATTR");
TokenStream::new()
}

#[proc_macro_derive(Print, attributes(print_helper))]
pub fn print_derive(input: TokenStream) -> TokenStream {
print_helper(input, "DERIVE");
Expand Down
34 changes: 34 additions & 0 deletions src/test/ui/proc-macro/expand-to-derive.rs
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,34 @@
// check-pass
// compile-flags: -Z span-debug --error-format human
// aux-build:test-macros.rs

#![feature(rustc_attrs)]

#![no_std] // Don't load unnecessary hygiene information from std
extern crate std;

#[macro_use]
extern crate test_macros;

macro_rules! expand_to_derive {
($item:item) => {
#[derive(Print)]
struct Foo {
#[cfg(FALSE)] removed: bool,
field: [bool; {
$item
0
}]
}
};
}

expand_to_derive! {
#[cfg_attr(not(FALSE), rustc_dummy)]
struct Inner {
#[cfg(FALSE)] removed_inner_field: bool,
other_inner_field: u8,
}
}

fn main() {}
109 changes: 109 additions & 0 deletions src/test/ui/proc-macro/expand-to-derive.stdout
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,109 @@
PRINT-DERIVE INPUT (DISPLAY): struct Foo
{
field :
[bool ; { #[rustc_dummy] struct Inner { other_inner_field : u8, } 0 }],
}
PRINT-DERIVE INPUT (DEBUG): TokenStream [
Ident {
ident: "struct",
span: $DIR/expand-to-derive.rs:16:9: 22:10 (#4),
},
Ident {
ident: "Foo",
span: $DIR/expand-to-derive.rs:16:9: 22:10 (#4),
},
Group {
delimiter: Brace,
stream: TokenStream [
Ident {
ident: "field",
span: $DIR/expand-to-derive.rs:16:9: 22:10 (#4),
},
Punct {
ch: ':',
spacing: Alone,
span: $DIR/expand-to-derive.rs:16:9: 22:10 (#4),
},
Group {
delimiter: Bracket,
stream: TokenStream [
Ident {
ident: "bool",
span: $DIR/expand-to-derive.rs:16:9: 22:10 (#4),
},
Punct {
ch: ';',
spacing: Alone,
span: $DIR/expand-to-derive.rs:16:9: 22:10 (#4),
},
Group {
delimiter: Brace,
stream: TokenStream [
Punct {
ch: '#',
spacing: Alone,
span: $DIR/expand-to-derive.rs:16:9: 22:10 (#4),
},
Group {
delimiter: Bracket,
stream: TokenStream [
Ident {
ident: "rustc_dummy",
span: $DIR/expand-to-derive.rs:16:9: 22:10 (#4),
},
],
span: $DIR/expand-to-derive.rs:16:9: 22:10 (#4),
},
Ident {
ident: "struct",
span: $DIR/expand-to-derive.rs:16:9: 22:10 (#4),
},
Ident {
ident: "Inner",
span: $DIR/expand-to-derive.rs:16:9: 22:10 (#4),
},
Group {
delimiter: Brace,
stream: TokenStream [
Ident {
ident: "other_inner_field",
span: $DIR/expand-to-derive.rs:16:9: 22:10 (#4),
},
Punct {
ch: ':',
spacing: Alone,
span: $DIR/expand-to-derive.rs:16:9: 22:10 (#4),
},
Ident {
ident: "u8",
span: $DIR/expand-to-derive.rs:16:9: 22:10 (#4),
},
Punct {
ch: ',',
spacing: Alone,
span: $DIR/expand-to-derive.rs:16:9: 22:10 (#4),
},
],
span: $DIR/expand-to-derive.rs:16:9: 22:10 (#4),
},
Literal {
kind: Integer,
symbol: "0",
suffix: None,
span: $DIR/expand-to-derive.rs:16:9: 22:10 (#4),
},
],
span: $DIR/expand-to-derive.rs:16:9: 22:10 (#4),
},
],
span: $DIR/expand-to-derive.rs:16:9: 22:10 (#4),
},
Punct {
ch: ',',
spacing: Alone,
span: $DIR/expand-to-derive.rs:16:9: 22:10 (#4),
},
],
span: $DIR/expand-to-derive.rs:16:9: 22:10 (#4),
},
]