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Diffstat (limited to 'third_party/rust/syn/tests/test_meta.rs')
| -rw-r--r-- | third_party/rust/syn/tests/test_meta.rs | 339 |
1 files changed, 339 insertions, 0 deletions
diff --git a/third_party/rust/syn/tests/test_meta.rs b/third_party/rust/syn/tests/test_meta.rs new file mode 100644 index 0000000000..d37dda948a --- /dev/null +++ b/third_party/rust/syn/tests/test_meta.rs @@ -0,0 +1,339 @@ +#[macro_use] +mod macros; + +use syn::{Meta, MetaList, MetaNameValue, NestedMeta}; + +#[test] +fn test_parse_meta_item_word() { + let input = "hello"; + + snapshot!(input as Meta, @r###" + Path(Path { + segments: [ + PathSegment { + ident: "hello", + arguments: None, + }, + ], + }) + "###); +} + +#[test] +fn test_parse_meta_name_value() { + let input = "foo = 5"; + let (inner, meta) = (input, input); + + snapshot!(inner as MetaNameValue, @r###" + MetaNameValue { + path: Path { + segments: [ + PathSegment { + ident: "foo", + arguments: None, + }, + ], + }, + lit: 5, + } + "###); + + snapshot!(meta as Meta, @r###" + Meta::NameValue { + path: Path { + segments: [ + PathSegment { + ident: "foo", + arguments: None, + }, + ], + }, + lit: 5, + } + "###); + + assert_eq!(meta, inner.into()); +} + +#[test] +fn test_parse_meta_name_value_with_keyword() { + let input = "static = 5"; + let (inner, meta) = (input, input); + + snapshot!(inner as MetaNameValue, @r###" + MetaNameValue { + path: Path { + segments: [ + PathSegment { + ident: "static", + arguments: None, + }, + ], + }, + lit: 5, + } + "###); + + snapshot!(meta as Meta, @r###" + Meta::NameValue { + path: Path { + segments: [ + PathSegment { + ident: "static", + arguments: None, + }, + ], + }, + lit: 5, + } + "###); + + assert_eq!(meta, inner.into()); +} + +#[test] +fn test_parse_meta_name_value_with_bool() { + let input = "true = 5"; + let (inner, meta) = (input, input); + + snapshot!(inner as MetaNameValue, @r###" + MetaNameValue { + path: Path { + segments: [ + PathSegment { + ident: "true", + arguments: None, + }, + ], + }, + lit: 5, + } + "###); + + snapshot!(meta as Meta, @r###" + Meta::NameValue { + path: Path { + segments: [ + PathSegment { + ident: "true", + arguments: None, + }, + ], + }, + lit: 5, + } + "###); + + assert_eq!(meta, inner.into()); +} + +#[test] +fn test_parse_meta_item_list_lit() { + let input = "foo(5)"; + let (inner, meta) = (input, input); + + snapshot!(inner as MetaList, @r###" + MetaList { + path: Path { + segments: [ + PathSegment { + ident: "foo", + arguments: None, + }, + ], + }, + nested: [ + Lit(5), + ], + } + "###); + + snapshot!(meta as Meta, @r###" + Meta::List { + path: Path { + segments: [ + PathSegment { + ident: "foo", + arguments: None, + }, + ], + }, + nested: [ + Lit(5), + ], + } + "###); + + assert_eq!(meta, inner.into()); +} + +#[test] +fn test_parse_meta_item_multiple() { + let input = "foo(word, name = 5, list(name2 = 6), word2)"; + let (inner, meta) = (input, input); + + snapshot!(inner as MetaList, @r###" + MetaList { + 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, + }, + ], + })), + ], + } + "###); + + snapshot!(meta as 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, + }, + ], + })), + ], + } + "###); + + assert_eq!(meta, inner.into()); +} + +#[test] +fn test_parse_nested_meta() { + let input = "5"; + snapshot!(input as NestedMeta, @"Lit(5)"); + + let input = "list(name2 = 6)"; + snapshot!(input as NestedMeta, @r###" + 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, + }), + ], + }) + "###); +} |