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73 lines
2.4 KiB
Rust
73 lines
2.4 KiB
Rust
//@ force-host
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//@ no-prefer-dynamic
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//@ compile-flags: --crate-type proc-macro --document-private-items
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#![crate_type="proc-macro"]
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#![crate_name="some_macros"]
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// @has some_macros/index.html
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// @has - '//a/[@href="attr.some_proc_attr.html"]' 'some_proc_attr'
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//! include a link to [some_proc_macro!] to make sure it works.
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extern crate proc_macro;
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use proc_macro::TokenStream;
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// @has some_macros/index.html
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// @has - '//h2' 'Macros'
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// @has - '//h2' 'Attribute Macros'
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// @has - '//h2' 'Derive Macros'
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// @!has - '//h2' 'Functions'
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// @has some_macros/all.html
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// @has - '//a[@href="macro.some_proc_macro.html"]' 'some_proc_macro'
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// @has - '//a[@href="attr.some_proc_attr.html"]' 'some_proc_attr'
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// @has - '//a[@href="derive.SomeDerive.html"]' 'SomeDerive'
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// @!has - '//a/@href' 'fn.some_proc_macro.html'
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// @!has - '//a/@href' 'fn.some_proc_attr.html'
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// @!has - '//a/@href' 'fn.some_derive.html'
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// @has some_macros/index.html '//a/@href' 'macro.some_proc_macro.html'
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// @!has - '//a/@href' 'fn.some_proc_macro.html'
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// @has some_macros/macro.some_proc_macro.html
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// @!has some_macros/fn.some_proc_macro.html
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/// a proc-macro that swallows its input and does nothing.
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#[proc_macro]
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pub fn some_proc_macro(_input: TokenStream) -> TokenStream {
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TokenStream::new()
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}
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// @has some_macros/index.html '//a/@href' 'attr.some_proc_attr.html'
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// @!has - '//a/@href' 'fn.some_proc_attr.html'
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// @has some_macros/attr.some_proc_attr.html
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// @!has some_macros/fn.some_proc_attr.html
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/// a proc-macro attribute that passes its item through verbatim.
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#[proc_macro_attribute]
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pub fn some_proc_attr(_attr: TokenStream, item: TokenStream) -> TokenStream {
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item
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}
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// @has some_macros/index.html '//a/@href' 'derive.SomeDerive.html'
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// @!has - '//a/@href' 'fn.some_derive.html'
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// @has some_macros/derive.SomeDerive.html
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// @!has some_macros/fn.some_derive.html
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/// a derive attribute that adds nothing to its input.
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#[proc_macro_derive(SomeDerive)]
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pub fn some_derive(_item: TokenStream) -> TokenStream {
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TokenStream::new()
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}
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// @has some_macros/foo/index.html
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mod foo {
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// @has - '//code' 'pub use some_proc_macro;'
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// @has - '//a/@href' '../macro.some_proc_macro.html'
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pub use some_proc_macro;
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// @has - '//code' 'pub use some_proc_attr;'
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// @has - '//a/@href' '../attr.some_proc_attr.html'
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pub use some_proc_attr;
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// @has - '//code' 'pub use some_derive;'
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// @has - '//a/@href' '../derive.SomeDerive.html'
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pub use some_derive;
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}
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