#![allow(clippy::uninlined_format_args)] #[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###" Meta::Path { segments: [ PathSegment { ident: "foo", }, ], } "###); } #[test] fn test_meta_item_name_value() { let meta = test("#[foo = 5]"); snapshot!(meta, @r###" Meta::NameValue { path: Path { segments: [ PathSegment { ident: "foo", }, ], }, value: Expr::Lit { 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", }, ], }, value: Expr::Lit { lit: Lit::Bool { value: true, }, }, } "###); let meta = test("#[foo = false]"); snapshot!(meta, @r###" Meta::NameValue { path: Path { segments: [ PathSegment { ident: "foo", }, ], }, value: Expr::Lit { 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", }, ], }, delimiter: MacroDelimiter::Paren, tokens: TokenStream(`5`), } "###); } #[test] fn test_meta_item_list_word() { let meta = test("#[foo(bar)]"); snapshot!(meta, @r###" Meta::List { path: Path { segments: [ PathSegment { ident: "foo", }, ], }, delimiter: MacroDelimiter::Paren, tokens: TokenStream(`bar`), } "###); } #[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", }, ], }, delimiter: MacroDelimiter::Paren, tokens: TokenStream(`bar = 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", }, ], }, delimiter: MacroDelimiter::Paren, tokens: TokenStream(`bar = 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", }, ], }, delimiter: MacroDelimiter::Paren, tokens: TokenStream(`word , name = 5 , list (name2 = 6) , word2`), } "###); } #[test] fn test_bool_lit() { let meta = test("#[foo(true)]"); snapshot!(meta, @r###" Meta::List { path: Path { segments: [ PathSegment { ident: "foo", }, ], }, delimiter: MacroDelimiter::Paren, tokens: TokenStream(`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", }, ], }, delimiter: MacroDelimiter::Paren, tokens: TokenStream(`min = - 1 , max = 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.meta }