| #[macro_use] |
| mod macros; |
| |
| use syn::parse::Parser; |
| use syn::{Attribute, Meta}; |
| |
| #[test] |
| fn test_meta_item_word() { |
| let meta = test("#[foo]"); |
| |
| snapshot!(meta, @r###" |
| Path(Path { |
| segments: [ |
| PathSegment { |
| ident: "foo", |
| arguments: None, |
| }, |
| ], |
| }) |
| "###); |
| } |
| |
| #[test] |
| fn test_meta_item_name_value() { |
| let meta = test("#[foo = 5]"); |
| |
| snapshot!(meta, @r###" |
| Meta::NameValue { |
| path: Path { |
| segments: [ |
| PathSegment { |
| ident: "foo", |
| arguments: None, |
| }, |
| ], |
| }, |
| lit: 5, |
| } |
| "###); |
| } |
| |
| #[test] |
| fn test_meta_item_bool_value() { |
| let meta = test("#[foo = true]"); |
| |
| snapshot!(meta, @r###" |
| Meta::NameValue { |
| path: Path { |
| segments: [ |
| PathSegment { |
| ident: "foo", |
| arguments: None, |
| }, |
| ], |
| }, |
| lit: Lit::Bool { |
| value: true, |
| }, |
| } |
| "###); |
| |
| let meta = test("#[foo = false]"); |
| |
| snapshot!(meta, @r###" |
| Meta::NameValue { |
| path: Path { |
| segments: [ |
| PathSegment { |
| ident: "foo", |
| arguments: None, |
| }, |
| ], |
| }, |
| lit: Lit::Bool { |
| value: false, |
| }, |
| } |
| "###); |
| } |
| |
| #[test] |
| fn test_meta_item_list_lit() { |
| let meta = test("#[foo(5)]"); |
| |
| snapshot!(meta, @r###" |
| Meta::List { |
| path: Path { |
| segments: [ |
| PathSegment { |
| ident: "foo", |
| arguments: None, |
| }, |
| ], |
| }, |
| nested: [ |
| Lit(5), |
| ], |
| } |
| "###); |
| } |
| |
| #[test] |
| fn test_meta_item_list_word() { |
| let meta = test("#[foo(bar)]"); |
| |
| snapshot!(meta, @r###" |
| Meta::List { |
| path: Path { |
| segments: [ |
| PathSegment { |
| ident: "foo", |
| arguments: None, |
| }, |
| ], |
| }, |
| nested: [ |
| Meta(Path(Path { |
| segments: [ |
| PathSegment { |
| ident: "bar", |
| arguments: None, |
| }, |
| ], |
| })), |
| ], |
| } |
| "###); |
| } |
| |
| #[test] |
| fn test_meta_item_list_name_value() { |
| let meta = test("#[foo(bar = 5)]"); |
| |
| snapshot!(meta, @r###" |
| Meta::List { |
| path: Path { |
| segments: [ |
| PathSegment { |
| ident: "foo", |
| arguments: None, |
| }, |
| ], |
| }, |
| nested: [ |
| Meta(Meta::NameValue { |
| path: Path { |
| segments: [ |
| PathSegment { |
| ident: "bar", |
| arguments: None, |
| }, |
| ], |
| }, |
| lit: 5, |
| }), |
| ], |
| } |
| "###); |
| } |
| |
| #[test] |
| fn test_meta_item_list_bool_value() { |
| let meta = test("#[foo(bar = true)]"); |
| |
| snapshot!(meta, @r###" |
| Meta::List { |
| path: Path { |
| segments: [ |
| PathSegment { |
| ident: "foo", |
| arguments: None, |
| }, |
| ], |
| }, |
| nested: [ |
| Meta(Meta::NameValue { |
| path: Path { |
| segments: [ |
| PathSegment { |
| ident: "bar", |
| arguments: None, |
| }, |
| ], |
| }, |
| lit: Lit::Bool { |
| value: true, |
| }, |
| }), |
| ], |
| } |
| "###); |
| } |
| |
| #[test] |
| fn test_meta_item_multiple() { |
| let meta = test("#[foo(word, name = 5, list(name2 = 6), word2)]"); |
| |
| snapshot!(meta, @r###" |
| Meta::List { |
| path: Path { |
| segments: [ |
| PathSegment { |
| ident: "foo", |
| arguments: None, |
| }, |
| ], |
| }, |
| nested: [ |
| Meta(Path(Path { |
| segments: [ |
| PathSegment { |
| ident: "word", |
| arguments: None, |
| }, |
| ], |
| })), |
| Meta(Meta::NameValue { |
| path: Path { |
| segments: [ |
| PathSegment { |
| ident: "name", |
| arguments: None, |
| }, |
| ], |
| }, |
| lit: 5, |
| }), |
| Meta(Meta::List { |
| path: Path { |
| segments: [ |
| PathSegment { |
| ident: "list", |
| arguments: None, |
| }, |
| ], |
| }, |
| nested: [ |
| Meta(Meta::NameValue { |
| path: Path { |
| segments: [ |
| PathSegment { |
| ident: "name2", |
| arguments: None, |
| }, |
| ], |
| }, |
| lit: 6, |
| }), |
| ], |
| }), |
| Meta(Path(Path { |
| segments: [ |
| PathSegment { |
| ident: "word2", |
| arguments: None, |
| }, |
| ], |
| })), |
| ], |
| } |
| "###); |
| } |
| |
| #[test] |
| fn test_bool_lit() { |
| let meta = test("#[foo(true)]"); |
| |
| snapshot!(meta, @r###" |
| Meta::List { |
| path: Path { |
| segments: [ |
| PathSegment { |
| ident: "foo", |
| arguments: None, |
| }, |
| ], |
| }, |
| nested: [ |
| Lit(Lit::Bool { |
| value: true, |
| }), |
| ], |
| } |
| "###); |
| } |
| |
| #[test] |
| fn test_negative_lit() { |
| let meta = test("#[form(min = -1, max = 200)]"); |
| |
| snapshot!(meta, @r###" |
| Meta::List { |
| path: Path { |
| segments: [ |
| PathSegment { |
| ident: "form", |
| arguments: None, |
| }, |
| ], |
| }, |
| nested: [ |
| Meta(Meta::NameValue { |
| path: Path { |
| segments: [ |
| PathSegment { |
| ident: "min", |
| arguments: None, |
| }, |
| ], |
| }, |
| lit: -1, |
| }), |
| Meta(Meta::NameValue { |
| path: Path { |
| segments: [ |
| PathSegment { |
| ident: "max", |
| arguments: None, |
| }, |
| ], |
| }, |
| lit: 200, |
| }), |
| ], |
| } |
| "###); |
| } |
| |
| fn test(input: &str) -> Meta { |
| let attrs = Attribute::parse_outer.parse_str(input).unwrap(); |
| |
| assert_eq!(attrs.len(), 1); |
| let attr = attrs.into_iter().next().unwrap(); |
| |
| attr.parse_meta().unwrap() |
| } |