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#![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
}