diff options
Diffstat (limited to 'crates')
-rw-r--r-- | crates/proc_macro_srv/Cargo.toml | 5 | ||||
-rw-r--r-- | crates/proc_macro_srv/src/tests/fixtures/test_serialize_proc_macro.txt | 181 | ||||
-rw-r--r-- | crates/proc_macro_srv/src/tests/mod.rs | 92 | ||||
-rw-r--r-- | crates/proc_macro_srv/src/tests/utils.rs | 41 | ||||
-rw-r--r-- | crates/proc_macro_test/src/lib.rs | 38 |
5 files changed, 116 insertions, 241 deletions
diff --git a/crates/proc_macro_srv/Cargo.toml b/crates/proc_macro_srv/Cargo.toml index 4ea41175e..c15cb8821 100644 --- a/crates/proc_macro_srv/Cargo.toml +++ b/crates/proc_macro_srv/Cargo.toml | |||
@@ -20,10 +20,9 @@ proc_macro_api = { path = "../proc_macro_api", version = "0.0.0" } | |||
20 | 20 | ||
21 | [dev-dependencies] | 21 | [dev-dependencies] |
22 | test_utils = { path = "../test_utils" } | 22 | test_utils = { path = "../test_utils" } |
23 | toolchain = { path = "../toolchain" } | ||
23 | cargo_metadata = "0.13" | 24 | cargo_metadata = "0.13" |
25 | expect-test = "1.1.0" | ||
24 | 26 | ||
25 | # used as proc macro test targets | 27 | # used as proc macro test targets |
26 | serde_derive = "1.0.106" | ||
27 | proc_macro_test = { path = "../proc_macro_test" } | 28 | proc_macro_test = { path = "../proc_macro_test" } |
28 | |||
29 | toolchain = { path = "../toolchain" } | ||
diff --git a/crates/proc_macro_srv/src/tests/fixtures/test_serialize_proc_macro.txt b/crates/proc_macro_srv/src/tests/fixtures/test_serialize_proc_macro.txt deleted file mode 100644 index eb67c7134..000000000 --- a/crates/proc_macro_srv/src/tests/fixtures/test_serialize_proc_macro.txt +++ /dev/null | |||
@@ -1,181 +0,0 @@ | |||
1 | SUBTREE $ | ||
2 | PUNCH # [alone] 4294967295 | ||
3 | SUBTREE [] 4294967295 | ||
4 | IDENT doc 4294967295 | ||
5 | SUBTREE () 4294967295 | ||
6 | IDENT hidden 4294967295 | ||
7 | PUNCH # [alone] 4294967295 | ||
8 | SUBTREE [] 4294967295 | ||
9 | IDENT allow 4294967295 | ||
10 | SUBTREE () 4294967295 | ||
11 | IDENT non_upper_case_globals 4294967295 | ||
12 | PUNCH , [alone] 4294967295 | ||
13 | IDENT unused_attributes 4294967295 | ||
14 | PUNCH , [alone] 4294967295 | ||
15 | IDENT unused_qualifications 4294967295 | ||
16 | IDENT const 4294967295 | ||
17 | IDENT _ 4294967295 | ||
18 | PUNCH : [alone] 4294967295 | ||
19 | SUBTREE () 4294967295 | ||
20 | PUNCH = [alone] 4294967295 | ||
21 | SUBTREE {} 4294967295 | ||
22 | PUNCH # [alone] 4294967295 | ||
23 | SUBTREE [] 4294967295 | ||
24 | IDENT allow 4294967295 | ||
25 | SUBTREE () 4294967295 | ||
26 | IDENT unused_extern_crates 4294967295 | ||
27 | PUNCH , [alone] 4294967295 | ||
28 | IDENT clippy 4294967295 | ||
29 | PUNCH : [joint] 4294967295 | ||
30 | PUNCH : [alone] 4294967295 | ||
31 | IDENT useless_attribute 4294967295 | ||
32 | IDENT extern 4294967295 | ||
33 | IDENT crate 4294967295 | ||
34 | IDENT serde 4294967295 | ||
35 | IDENT as 4294967295 | ||
36 | IDENT _serde 4294967295 | ||
37 | PUNCH ; [alone] 4294967295 | ||
38 | PUNCH # [alone] 4294967295 | ||
39 | SUBTREE [] 4294967295 | ||
40 | IDENT allow 4294967295 | ||
41 | SUBTREE () 4294967295 | ||
42 | IDENT unused_macros 4294967295 | ||
43 | IDENT macro_rules 4294967295 | ||
44 | PUNCH ! [alone] 4294967295 | ||
45 | IDENT try 4294967295 | ||
46 | SUBTREE {} 4294967295 | ||
47 | SUBTREE () 4294967295 | ||
48 | PUNCH $ [alone] 4294967295 | ||
49 | IDENT __expr 4294967295 | ||
50 | PUNCH : [alone] 4294967295 | ||
51 | IDENT expr 4294967295 | ||
52 | PUNCH = [joint] 4294967295 | ||
53 | PUNCH > [alone] 4294967295 | ||
54 | SUBTREE {} 4294967295 | ||
55 | IDENT match 4294967295 | ||
56 | PUNCH $ [alone] 4294967295 | ||
57 | IDENT __expr 4294967295 | ||
58 | SUBTREE {} 4294967295 | ||
59 | IDENT _serde 4294967295 | ||
60 | PUNCH : [joint] 4294967295 | ||
61 | PUNCH : [alone] 4294967295 | ||
62 | IDENT __private 4294967295 | ||
63 | PUNCH : [joint] 4294967295 | ||
64 | PUNCH : [alone] 4294967295 | ||
65 | IDENT Ok 4294967295 | ||
66 | SUBTREE () 4294967295 | ||
67 | IDENT __val 4294967295 | ||
68 | PUNCH = [joint] 4294967295 | ||
69 | PUNCH > [alone] 4294967295 | ||
70 | IDENT __val 4294967295 | ||
71 | PUNCH , [alone] 4294967295 | ||
72 | IDENT _serde 4294967295 | ||
73 | PUNCH : [joint] 4294967295 | ||
74 | PUNCH : [alone] 4294967295 | ||
75 | IDENT __private 4294967295 | ||
76 | PUNCH : [joint] 4294967295 | ||
77 | PUNCH : [alone] 4294967295 | ||
78 | IDENT Err 4294967295 | ||
79 | SUBTREE () 4294967295 | ||
80 | IDENT __err 4294967295 | ||
81 | PUNCH = [joint] 4294967295 | ||
82 | PUNCH > [alone] 4294967295 | ||
83 | SUBTREE {} 4294967295 | ||
84 | IDENT return 4294967295 | ||
85 | IDENT _serde 4294967295 | ||
86 | PUNCH : [joint] 4294967295 | ||
87 | PUNCH : [alone] 4294967295 | ||
88 | IDENT __private 4294967295 | ||
89 | PUNCH : [joint] 4294967295 | ||
90 | PUNCH : [alone] 4294967295 | ||
91 | IDENT Err 4294967295 | ||
92 | SUBTREE () 4294967295 | ||
93 | IDENT __err 4294967295 | ||
94 | PUNCH ; [alone] 4294967295 | ||
95 | PUNCH # [alone] 4294967295 | ||
96 | SUBTREE [] 4294967295 | ||
97 | IDENT automatically_derived 4294967295 | ||
98 | IDENT impl 4294967295 | ||
99 | IDENT _serde 4294967295 | ||
100 | PUNCH : [joint] 4294967295 | ||
101 | PUNCH : [alone] 4294967295 | ||
102 | IDENT Serialize 4294967295 | ||
103 | IDENT for 4294967295 | ||
104 | IDENT Foo 4294967295 | ||
105 | SUBTREE {} 4294967295 | ||
106 | IDENT fn 4294967295 | ||
107 | IDENT serialize 4294967295 | ||
108 | PUNCH < [alone] 4294967295 | ||
109 | IDENT __S 4294967295 | ||
110 | PUNCH > [alone] 4294967295 | ||
111 | SUBTREE () 4294967295 | ||
112 | PUNCH & [alone] 4294967295 | ||
113 | IDENT self 4294967295 | ||
114 | PUNCH , [alone] 4294967295 | ||
115 | IDENT __serializer 4294967295 | ||
116 | PUNCH : [alone] 4294967295 | ||
117 | IDENT __S 4294967295 | ||
118 | PUNCH - [joint] 4294967295 | ||
119 | PUNCH > [alone] 4294967295 | ||
120 | IDENT _serde 4294967295 | ||
121 | PUNCH : [joint] 4294967295 | ||
122 | PUNCH : [alone] 4294967295 | ||
123 | IDENT __private 4294967295 | ||
124 | PUNCH : [joint] 4294967295 | ||
125 | PUNCH : [alone] 4294967295 | ||
126 | IDENT Result 4294967295 | ||
127 | PUNCH < [alone] 4294967295 | ||
128 | IDENT __S 4294967295 | ||
129 | PUNCH : [joint] 4294967295 | ||
130 | PUNCH : [alone] 4294967295 | ||
131 | IDENT Ok 4294967295 | ||
132 | PUNCH , [alone] 4294967295 | ||
133 | IDENT __S 4294967295 | ||
134 | PUNCH : [joint] 4294967295 | ||
135 | PUNCH : [alone] 4294967295 | ||
136 | IDENT Error 4294967295 | ||
137 | PUNCH > [alone] 4294967295 | ||
138 | IDENT where 4294967295 | ||
139 | IDENT __S 4294967295 | ||
140 | PUNCH : [alone] 4294967295 | ||
141 | IDENT _serde 4294967295 | ||
142 | PUNCH : [joint] 4294967295 | ||
143 | PUNCH : [alone] 4294967295 | ||
144 | IDENT Serializer 4294967295 | ||
145 | PUNCH , [alone] 4294967295 | ||
146 | SUBTREE {} 4294967295 | ||
147 | IDENT let 4294967295 | ||
148 | IDENT __serde_state 4294967295 | ||
149 | PUNCH = [alone] 4294967295 | ||
150 | IDENT try 4294967295 | ||
151 | PUNCH ! [alone] 4294967295 | ||
152 | SUBTREE () 4294967295 | ||
153 | IDENT _serde 4294967295 | ||
154 | PUNCH : [joint] 4294967295 | ||
155 | PUNCH : [alone] 4294967295 | ||
156 | IDENT Serializer 4294967295 | ||
157 | PUNCH : [joint] 4294967295 | ||
158 | PUNCH : [alone] 4294967295 | ||
159 | IDENT serialize_struct 4294967295 | ||
160 | SUBTREE () 4294967295 | ||
161 | IDENT __serializer 4294967295 | ||
162 | PUNCH , [alone] 4294967295 | ||
163 | LITERAL "Foo" 4294967295 | ||
164 | PUNCH , [alone] 4294967295 | ||
165 | IDENT false 4294967295 | ||
166 | IDENT as 4294967295 | ||
167 | IDENT usize 4294967295 | ||
168 | PUNCH ; [alone] 4294967295 | ||
169 | IDENT _serde 4294967295 | ||
170 | PUNCH : [joint] 4294967295 | ||
171 | PUNCH : [alone] 4294967295 | ||
172 | IDENT ser 4294967295 | ||
173 | PUNCH : [joint] 4294967295 | ||
174 | PUNCH : [alone] 4294967295 | ||
175 | IDENT SerializeStruct 4294967295 | ||
176 | PUNCH : [joint] 4294967295 | ||
177 | PUNCH : [alone] 4294967295 | ||
178 | IDENT end 4294967295 | ||
179 | SUBTREE () 4294967295 | ||
180 | IDENT __serde_state 4294967295 | ||
181 | PUNCH ; [alone] 4294967295 | ||
diff --git a/crates/proc_macro_srv/src/tests/mod.rs b/crates/proc_macro_srv/src/tests/mod.rs index b4ab4c077..5ca2b8a75 100644 --- a/crates/proc_macro_srv/src/tests/mod.rs +++ b/crates/proc_macro_srv/src/tests/mod.rs | |||
@@ -2,64 +2,86 @@ | |||
2 | 2 | ||
3 | #[macro_use] | 3 | #[macro_use] |
4 | mod utils; | 4 | mod utils; |
5 | use test_utils::assert_eq_text; | 5 | use expect_test::expect; |
6 | use utils::*; | 6 | use utils::*; |
7 | 7 | ||
8 | #[test] | 8 | #[test] |
9 | fn test_derive_serialize_proc_macro() { | 9 | fn test_derive_empty() { |
10 | assert_expand("DeriveEmpty", r#"struct S;"#, expect![[r#"SUBTREE $"#]]); | ||
11 | } | ||
12 | |||
13 | #[test] | ||
14 | fn test_derive_error() { | ||
10 | assert_expand( | 15 | assert_expand( |
11 | "serde_derive", | 16 | "DeriveError", |
12 | "Serialize", | 17 | r#"struct S;"#, |
13 | "1.0", | 18 | expect![[r##" |
14 | r"struct Foo {}", | 19 | SUBTREE $ |
15 | include_str!("fixtures/test_serialize_proc_macro.txt"), | 20 | IDENT compile_error 4294967295 |
21 | PUNCH ! [alone] 4294967295 | ||
22 | SUBTREE () 4294967295 | ||
23 | LITERAL "#[derive(DeriveError)] struct S ;" 4294967295 | ||
24 | PUNCH ; [alone] 4294967295"##]], | ||
16 | ); | 25 | ); |
17 | } | 26 | } |
18 | 27 | ||
19 | #[test] | 28 | #[test] |
20 | fn test_derive_serialize_proc_macro_failed() { | 29 | fn test_fn_like_macro() { |
21 | assert_expand( | 30 | assert_expand( |
22 | "serde_derive", | 31 | "fn_like_noop", |
23 | "Serialize", | 32 | r#"ident, 0, 1, []"#, |
24 | "1.0", | 33 | expect![[r#" |
25 | r"struct {}", | 34 | SUBTREE $ |
26 | r##" | 35 | IDENT ident 4294967295 |
27 | SUBTREE $ | 36 | PUNCH , [alone] 4294967295 |
28 | IDENT compile_error 4294967295 | 37 | LITERAL 0 4294967295 |
29 | PUNCH ! [alone] 4294967295 | 38 | PUNCH , [alone] 4294967295 |
30 | SUBTREE {} 4294967295 | 39 | LITERAL 1 4294967295 |
31 | LITERAL "expected identifier" 4294967295 | 40 | PUNCH , [alone] 4294967295 |
32 | "##, | 41 | SUBTREE [] 4294967295"#]], |
33 | ); | 42 | ); |
34 | } | 43 | } |
35 | 44 | ||
36 | #[test] | 45 | #[test] |
37 | fn test_derive_proc_macro_list() { | 46 | fn test_attr_macro() { |
38 | let res = list("serde_derive", "1").join("\n"); | 47 | // Corresponds to |
39 | 48 | // #[proc_macro_test::attr_error(some arguments)] | |
40 | assert_eq_text!( | 49 | // mod m {} |
41 | r#"Serialize [CustomDerive] | 50 | assert_expand_attr( |
42 | Deserialize [CustomDerive]"#, | 51 | "attr_error", |
43 | &res | 52 | r#"mod m {}"#, |
53 | r#"some arguments"#, | ||
54 | expect![[r##" | ||
55 | SUBTREE $ | ||
56 | IDENT compile_error 4294967295 | ||
57 | PUNCH ! [alone] 4294967295 | ||
58 | SUBTREE () 4294967295 | ||
59 | LITERAL "#[attr_error(some arguments)] mod m {}" 4294967295 | ||
60 | PUNCH ; [alone] 4294967295"##]], | ||
44 | ); | 61 | ); |
45 | } | 62 | } |
46 | 63 | ||
47 | /// Tests that we find and classify non-derive macros correctly. | 64 | /// Tests that we find and classify all proc macros correctly. |
48 | #[test] | 65 | #[test] |
49 | fn list_test_macros() { | 66 | fn list_test_macros() { |
50 | let res = list("proc_macro_test", "0.0.0").join("\n"); | 67 | let res = list().join("\n"); |
51 | 68 | ||
52 | assert_eq_text!( | 69 | expect![[r#" |
53 | r#"function_like_macro [FuncLike] | 70 | fn_like_noop [FuncLike] |
54 | attribute_macro [Attr] | 71 | fn_like_panic [FuncLike] |
55 | DummyTrait [CustomDerive]"#, | 72 | fn_like_error [FuncLike] |
56 | &res | 73 | attr_noop [Attr] |
57 | ); | 74 | attr_panic [Attr] |
75 | attr_error [Attr] | ||
76 | DeriveEmpty [CustomDerive] | ||
77 | DerivePanic [CustomDerive] | ||
78 | DeriveError [CustomDerive]"#]] | ||
79 | .assert_eq(&res); | ||
58 | } | 80 | } |
59 | 81 | ||
60 | #[test] | 82 | #[test] |
61 | fn test_version_check() { | 83 | fn test_version_check() { |
62 | let path = fixtures::dylib_path("proc_macro_test", "0.0.0"); | 84 | let path = fixtures::proc_macro_test_dylib_path(); |
63 | let info = proc_macro_api::read_dylib_info(&path).unwrap(); | 85 | let info = proc_macro_api::read_dylib_info(&path).unwrap(); |
64 | assert!(info.version.1 >= 50); | 86 | assert!(info.version.1 >= 50); |
65 | } | 87 | } |
diff --git a/crates/proc_macro_srv/src/tests/utils.rs b/crates/proc_macro_srv/src/tests/utils.rs index f15381f0f..f0a514b32 100644 --- a/crates/proc_macro_srv/src/tests/utils.rs +++ b/crates/proc_macro_srv/src/tests/utils.rs | |||
@@ -2,9 +2,9 @@ | |||
2 | 2 | ||
3 | use crate::dylib; | 3 | use crate::dylib; |
4 | use crate::ProcMacroSrv; | 4 | use crate::ProcMacroSrv; |
5 | use expect_test::Expect; | ||
5 | use proc_macro_api::ListMacrosTask; | 6 | use proc_macro_api::ListMacrosTask; |
6 | use std::str::FromStr; | 7 | use std::str::FromStr; |
7 | use test_utils::assert_eq_text; | ||
8 | 8 | ||
9 | pub mod fixtures { | 9 | pub mod fixtures { |
10 | use cargo_metadata::Message; | 10 | use cargo_metadata::Message; |
@@ -12,9 +12,11 @@ pub mod fixtures { | |||
12 | use std::process::Command; | 12 | use std::process::Command; |
13 | 13 | ||
14 | // Use current project metadata to get the proc-macro dylib path | 14 | // Use current project metadata to get the proc-macro dylib path |
15 | pub fn dylib_path(crate_name: &str, version: &str) -> std::path::PathBuf { | 15 | pub fn proc_macro_test_dylib_path() -> std::path::PathBuf { |
16 | let name = "proc_macro_test"; | ||
17 | let version = "0.0.0"; | ||
16 | let command = Command::new(toolchain::cargo()) | 18 | let command = Command::new(toolchain::cargo()) |
17 | .args(&["check", "--tests", "--message-format", "json"]) | 19 | .args(&["build", "-p", name, "--message-format", "json"]) |
18 | .output() | 20 | .output() |
19 | .unwrap() | 21 | .unwrap() |
20 | .stdout; | 22 | .stdout; |
@@ -23,7 +25,7 @@ pub mod fixtures { | |||
23 | match message.unwrap() { | 25 | match message.unwrap() { |
24 | Message::CompilerArtifact(artifact) => { | 26 | Message::CompilerArtifact(artifact) => { |
25 | if artifact.target.kind.contains(&"proc-macro".to_string()) { | 27 | if artifact.target.kind.contains(&"proc-macro".to_string()) { |
26 | let repr = format!("{} {}", crate_name, version); | 28 | let repr = format!("{} {}", name, version); |
27 | if artifact.package_id.repr.starts_with(&repr) { | 29 | if artifact.package_id.repr.starts_with(&repr) { |
28 | return PathBuf::from(&artifact.filenames[0]); | 30 | return PathBuf::from(&artifact.filenames[0]); |
29 | } | 31 | } |
@@ -33,7 +35,7 @@ pub mod fixtures { | |||
33 | } | 35 | } |
34 | } | 36 | } |
35 | 37 | ||
36 | panic!("No proc-macro dylib for {} found!", crate_name); | 38 | panic!("No proc-macro dylib for {} found!", name); |
37 | } | 39 | } |
38 | } | 40 | } |
39 | 41 | ||
@@ -41,23 +43,26 @@ fn parse_string(code: &str) -> Option<crate::rustc_server::TokenStream> { | |||
41 | Some(crate::rustc_server::TokenStream::from_str(code).unwrap()) | 43 | Some(crate::rustc_server::TokenStream::from_str(code).unwrap()) |
42 | } | 44 | } |
43 | 45 | ||
44 | pub fn assert_expand( | 46 | pub fn assert_expand(macro_name: &str, ra_fixture: &str, expect: Expect) { |
45 | crate_name: &str, | 47 | assert_expand_impl(macro_name, ra_fixture, None, expect); |
46 | macro_name: &str, | 48 | } |
47 | version: &str, | 49 | |
48 | ra_fixture: &str, | 50 | pub fn assert_expand_attr(macro_name: &str, ra_fixture: &str, attr_args: &str, expect: Expect) { |
49 | expect: &str, | 51 | assert_expand_impl(macro_name, ra_fixture, Some(attr_args), expect); |
50 | ) { | 52 | } |
51 | let path = fixtures::dylib_path(crate_name, version); | 53 | |
54 | fn assert_expand_impl(macro_name: &str, input: &str, attr: Option<&str>, expect: Expect) { | ||
55 | let path = fixtures::proc_macro_test_dylib_path(); | ||
52 | let expander = dylib::Expander::new(&path).unwrap(); | 56 | let expander = dylib::Expander::new(&path).unwrap(); |
53 | let fixture = parse_string(ra_fixture).unwrap(); | 57 | let fixture = parse_string(input).unwrap(); |
58 | let attr = attr.map(|attr| parse_string(attr).unwrap().into_subtree()); | ||
54 | 59 | ||
55 | let res = expander.expand(macro_name, &fixture.into_subtree(), None).unwrap(); | 60 | let res = expander.expand(macro_name, &fixture.into_subtree(), attr.as_ref()).unwrap(); |
56 | assert_eq_text!(&expect.trim(), &format!("{:?}", res)); | 61 | expect.assert_eq(&format!("{:?}", res)); |
57 | } | 62 | } |
58 | 63 | ||
59 | pub fn list(crate_name: &str, version: &str) -> Vec<String> { | 64 | pub fn list() -> Vec<String> { |
60 | let path = fixtures::dylib_path(crate_name, version); | 65 | let path = fixtures::proc_macro_test_dylib_path(); |
61 | let task = ListMacrosTask { lib: path }; | 66 | let task = ListMacrosTask { lib: path }; |
62 | let mut srv = ProcMacroSrv::default(); | 67 | let mut srv = ProcMacroSrv::default(); |
63 | let res = srv.list_macros(&task).unwrap(); | 68 | let res = srv.list_macros(&task).unwrap(); |
diff --git a/crates/proc_macro_test/src/lib.rs b/crates/proc_macro_test/src/lib.rs index ec2a114a3..4b26d2472 100644 --- a/crates/proc_macro_test/src/lib.rs +++ b/crates/proc_macro_test/src/lib.rs | |||
@@ -3,16 +3,46 @@ | |||
3 | use proc_macro::TokenStream; | 3 | use proc_macro::TokenStream; |
4 | 4 | ||
5 | #[proc_macro] | 5 | #[proc_macro] |
6 | pub fn function_like_macro(args: TokenStream) -> TokenStream { | 6 | pub fn fn_like_noop(args: TokenStream) -> TokenStream { |
7 | args | 7 | args |
8 | } | 8 | } |
9 | 9 | ||
10 | #[proc_macro] | ||
11 | pub fn fn_like_panic(args: TokenStream) -> TokenStream { | ||
12 | panic!("fn_like_panic!({})", args); | ||
13 | } | ||
14 | |||
15 | #[proc_macro] | ||
16 | pub fn fn_like_error(args: TokenStream) -> TokenStream { | ||
17 | format!("compile_error!(\"fn_like_error!({})\");", args).parse().unwrap() | ||
18 | } | ||
19 | |||
10 | #[proc_macro_attribute] | 20 | #[proc_macro_attribute] |
11 | pub fn attribute_macro(_args: TokenStream, item: TokenStream) -> TokenStream { | 21 | pub fn attr_noop(_args: TokenStream, item: TokenStream) -> TokenStream { |
12 | item | 22 | item |
13 | } | 23 | } |
14 | 24 | ||
15 | #[proc_macro_derive(DummyTrait)] | 25 | #[proc_macro_attribute] |
16 | pub fn derive_macro(_item: TokenStream) -> TokenStream { | 26 | pub fn attr_panic(args: TokenStream, item: TokenStream) -> TokenStream { |
27 | panic!("#[attr_panic {}] {}", args, item); | ||
28 | } | ||
29 | |||
30 | #[proc_macro_attribute] | ||
31 | pub fn attr_error(args: TokenStream, item: TokenStream) -> TokenStream { | ||
32 | format!("compile_error!(\"#[attr_error({})] {}\");", args, item).parse().unwrap() | ||
33 | } | ||
34 | |||
35 | #[proc_macro_derive(DeriveEmpty)] | ||
36 | pub fn derive_empty(_item: TokenStream) -> TokenStream { | ||
17 | TokenStream::new() | 37 | TokenStream::new() |
18 | } | 38 | } |
39 | |||
40 | #[proc_macro_derive(DerivePanic)] | ||
41 | pub fn derive_panic(item: TokenStream) -> TokenStream { | ||
42 | panic!("#[derive(DerivePanic)] {}", item); | ||
43 | } | ||
44 | |||
45 | #[proc_macro_derive(DeriveError)] | ||
46 | pub fn derive_error(item: TokenStream) -> TokenStream { | ||
47 | format!("compile_error!(\"#[derive(DeriveError)] {}\");", item).parse().unwrap() | ||
48 | } | ||