//! proc-macro tests
#[macro_use]
mod utils;
use utils::*;
use expect_test::expect;
#[test]
fn test_derive_empty() {
assert_expand(
"DeriveEmpty",
r#"struct S;"#,
expect!["SUBTREE $$ 1 1"],
expect!["SUBTREE $$ 42:[email protected]#ROOT2024 42:[email protected]#ROOT2024"],
);
}
#[test]
fn test_derive_error() {
assert_expand(
"DeriveError",
r#"struct S;"#,
expect![[r#"
SUBTREE $$ 1 1
IDENT compile_error 1
PUNCH ! [alone] 1
SUBTREE () 1 1
LITERAL Str #[derive(DeriveError)] struct S ; 1
PUNCH ; [alone] 1"#]],
expect![[r#"
SUBTREE $$ 42:[email protected]#ROOT2024 42:[email protected]#ROOT2024
IDENT compile_error 42:[email protected]#ROOT2024
PUNCH ! [alone] 42:[email protected]#ROOT2024
SUBTREE () 42:[email protected]#ROOT2024 42:[email protected]#ROOT2024
LITERAL Str #[derive(DeriveError)] struct S ; 42:[email protected]#ROOT2024
PUNCH ; [alone] 42:[email protected]#ROOT2024"#]],
);
}
#[test]
fn test_fn_like_macro_noop() {
assert_expand(
"fn_like_noop",
r#"ident, 0, 1, []"#,
expect![[r#"
SUBTREE $$ 1 1
IDENT ident 1
PUNCH , [alone] 1
LITERAL Integer 0 1
PUNCH , [alone] 1
LITERAL Integer 1 1
PUNCH , [alone] 1
SUBTREE [] 1 1"#]],
expect![[r#"
SUBTREE $$ 42:[email protected]#ROOT2024 42:[email protected]#ROOT2024
IDENT ident 42:[email protected]#ROOT2024
PUNCH , [alone] 42:[email protected]#ROOT2024
LITERAL Integer 0 42:[email protected]#ROOT2024
PUNCH , [alone] 42:[email protected]#ROOT2024
LITERAL Integer 1 42:[email protected]#ROOT2024
PUNCH , [alone] 42:[email protected]#ROOT2024
SUBTREE [] 42:[email protected]#ROOT2024 42:[email protected]#ROOT2024"#]],
);
}
#[test]
fn test_fn_like_macro_clone_ident_subtree() {
assert_expand(
"fn_like_clone_tokens",
r#"ident, []"#,
expect![[r#"
SUBTREE $$ 1 1
IDENT ident 1
PUNCH , [alone] 1
SUBTREE [] 1 1"#]],
expect![[r#"
SUBTREE $$ 42:[email protected]#ROOT2024 42:[email protected]#ROOT2024
IDENT ident 42:[email protected]#ROOT2024
PUNCH , [alone] 42:[email protected]#ROOT2024
SUBTREE [] 42:[email protected]#ROOT2024 42:[email protected]#ROOT2024"#]],
);
}
#[test]
fn test_fn_like_macro_clone_raw_ident() {
assert_expand(
"fn_like_clone_tokens",
"r#async",
expect![[r#"
SUBTREE $$ 1 1
IDENT r#async 1"#]],
expect![[r#"
SUBTREE $$ 42:[email protected]#ROOT2024 42:[email protected]#ROOT2024
IDENT r#async 42:[email protected]#ROOT2024"#]],
);
}
#[test]
fn test_fn_like_fn_like_span_join() {
assert_expand(
"fn_like_span_join",
"foo bar",
expect![[r#"
SUBTREE $$ 1 1
IDENT r#joined 1"#]],
expect![[r#"
SUBTREE $$ 42:[email protected]#ROOT2024 42:[email protected]#ROOT2024
IDENT r#joined 42:[email protected]#ROOT2024"#]],
);
}
#[test]
fn test_fn_like_fn_like_span_ops() {
assert_expand(
"fn_like_span_ops",
"set_def_site resolved_at_def_site start_span",
expect![[r#"
SUBTREE $$ 1 1
IDENT set_def_site 0
IDENT resolved_at_def_site 1
IDENT start_span 1"#]],
expect![[r#"
SUBTREE $$ 42:[email protected]#ROOT2024 42:[email protected]#ROOT2024
IDENT set_def_site 41:[email protected]#ROOT2024
IDENT resolved_at_def_site 42:[email protected]#ROOT2024
IDENT start_span 42:[email protected]#ROOT2024"#]],
);
}
#[test]
fn test_fn_like_mk_literals() {
assert_expand(
"fn_like_mk_literals",
r#""#,
expect![[r#"
SUBTREE $$ 1 1
LITERAL ByteStr byte_string 1
LITERAL Char c 1
LITERAL Str string 1
LITERAL Float 3.14f64 1
LITERAL Float 3.14 1
LITERAL Integer 123i64 1
LITERAL Integer 123 1"#]],
expect![[r#"
SUBTREE $$ 42:[email protected]#ROOT2024 42:[email protected]#ROOT2024
LITERAL ByteStr byte_string 42:[email protected]#ROOT2024
LITERAL Char c 42:[email protected]#ROOT2024
LITERAL Str string 42:[email protected]#ROOT2024
LITERAL Float 3.14f64 42:[email protected]#ROOT2024
LITERAL Float 3.14 42:[email protected]#ROOT2024
LITERAL Integer 123i64 42:[email protected]#ROOT2024
LITERAL Integer 123 42:[email protected]#ROOT2024"#]],
);
}
#[test]
fn test_fn_like_mk_idents() {
assert_expand(
"fn_like_mk_idents",
r#""#,
expect![[r#"
SUBTREE $$ 1 1
IDENT standard 1
IDENT r#raw 1"#]],
expect![[r#"
SUBTREE $$ 42:[email protected]#ROOT2024 42:[email protected]#ROOT2024
IDENT standard 42:[email protected]#ROOT2024
IDENT r#raw 42:[email protected]#ROOT2024"#]],
);
}
#[test]
fn test_fn_like_macro_clone_literals() {
assert_expand(
"fn_like_clone_tokens",
r###"1u16, 2_u32, -4i64, 3.14f32, "hello bridge", "suffixed"suffix, r##"raw"##, 'a', b'b', c"null""###,
expect![[r#"
SUBTREE $$ 1 1
LITERAL Integer 1u16 1
PUNCH , [alone] 1
LITERAL Integer 2_u32 1
PUNCH , [alone] 1
PUNCH - [alone] 1
LITERAL Integer 4i64 1
PUNCH , [alone] 1
LITERAL Float 3.14f32 1
PUNCH , [alone] 1
LITERAL Str hello bridge 1
PUNCH , [alone] 1
LITERAL Str suffixedsuffix 1
PUNCH , [alone] 1
LITERAL StrRaw(2) raw 1
PUNCH , [alone] 1
LITERAL Char a 1
PUNCH , [alone] 1
LITERAL Byte b 1
PUNCH , [alone] 1
LITERAL CStr null 1"#]],
expect![[r#"
SUBTREE $$ 42:[email protected]#ROOT2024 42:[email protected]#ROOT2024
LITERAL Integer 1u16 42:[email protected]#ROOT2024
PUNCH , [alone] 42:[email protected]#ROOT2024
LITERAL Integer 2_u32 42:[email protected]#ROOT2024
PUNCH , [alone] 42:[email protected]#ROOT2024
PUNCH - [alone] 42:[email protected]#ROOT2024
LITERAL Integer 4i64 42:[email protected]#ROOT2024
PUNCH , [alone] 42:[email protected]#ROOT2024
LITERAL Float 3.14f32 42:[email protected]#ROOT2024
PUNCH , [alone] 42:[email protected]#ROOT2024
LITERAL Str hello bridge 42:[email protected]#ROOT2024
PUNCH , [alone] 42:[email protected]#ROOT2024
LITERAL Str suffixedsuffix 42:[email protected]#ROOT2024
PUNCH , [alone] 42:[email protected]#ROOT2024
LITERAL StrRaw(2) raw 42:[email protected]#ROOT2024
PUNCH , [alone] 42:[email protected]#ROOT2024
LITERAL Char a 42:[email protected]#ROOT2024
PUNCH , [alone] 42:[email protected]#ROOT2024
LITERAL Byte b 42:[email protected]#ROOT2024
PUNCH , [alone] 42:[email protected]#ROOT2024
LITERAL CStr null 42:[email protected]#ROOT2024"#]],
);
}
#[test]
fn test_attr_macro() {
// Corresponds to
// #[proc_macro_test::attr_error(some arguments)]
// mod m {}
assert_expand_attr(
"attr_error",
r#"mod m {}"#,
r#"some arguments"#,
expect![[r#"
SUBTREE $$ 1 1
IDENT compile_error 1
PUNCH ! [alone] 1
SUBTREE () 1 1
LITERAL Str #[attr_error(some arguments)] mod m {} 1
PUNCH ; [alone] 1"#]],
expect![[r#"
SUBTREE $$ 42:[email protected]#ROOT2024 42:[email protected]#ROOT2024
IDENT compile_error 42:[email protected]#ROOT2024
PUNCH ! [alone] 42:[email protected]#ROOT2024
SUBTREE () 42:[email protected]#ROOT2024 42:[email protected]#ROOT2024
LITERAL Str #[attr_error(some arguments)] mod m {} 42:[email protected]#ROOT2024
PUNCH ; [alone] 42:[email protected]#ROOT2024"#]],
);
}
/// Tests that we find and classify all proc macros correctly.
#[test]
fn list_test_macros() {
let res = list().join("\n");
expect![[r#"
fn_like_noop [Bang]
fn_like_panic [Bang]
fn_like_error [Bang]
fn_like_clone_tokens [Bang]
fn_like_mk_literals [Bang]
fn_like_mk_idents [Bang]
fn_like_span_join [Bang]
fn_like_span_ops [Bang]
attr_noop [Attr]
attr_panic [Attr]
attr_error [Attr]
DeriveEmpty [CustomDerive]
DerivePanic [CustomDerive]
DeriveError [CustomDerive]"#]]
.assert_eq(&res);
}