diff options
Diffstat (limited to 'src/test/ui/proc-macro')
5 files changed, 60 insertions, 0 deletions
diff --git a/src/test/ui/proc-macro/group-compat-hack/auxiliary/group-compat-hack.rs b/src/test/ui/proc-macro/group-compat-hack/auxiliary/group-compat-hack.rs new file mode 100644 index 00000000000..5cd3b40a2e4 --- /dev/null +++ b/src/test/ui/proc-macro/group-compat-hack/auxiliary/group-compat-hack.rs @@ -0,0 +1,13 @@ +// force-host +// no-prefer-dynamic + +#![crate_type = "proc-macro"] + +extern crate proc_macro; +use proc_macro::TokenStream; + +#[proc_macro_attribute] +pub fn my_macro(_attr: TokenStream, input: TokenStream) -> TokenStream { + println!("Called proc_macro_hack with {:?}", input); + input +} diff --git a/src/test/ui/proc-macro/group-compat-hack/group-compat-hack.rs b/src/test/ui/proc-macro/group-compat-hack/group-compat-hack.rs new file mode 100644 index 00000000000..35c101587de --- /dev/null +++ b/src/test/ui/proc-macro/group-compat-hack/group-compat-hack.rs @@ -0,0 +1,30 @@ +// check-pass +// aux-build:group-compat-hack.rs +// compile-flags: -Z span-debug + +#![no_std] // Don't load unnecessary hygiene information from std +extern crate std; + +#[macro_use] extern crate group_compat_hack; + +// Tests the backwards compatibility hack added for certain macros +// When an attribute macro named `proc_macro_hack` or `wasm_bindgen` +// has an `NtIdent` named `$name`, we pass a plain `Ident` token in +// place of a `None`-delimited group. This allows us to maintain +// backwards compatibility for older versions of these crates. + +include!("js-sys/src/lib.rs"); +include!("time-macros-impl/src/lib.rs"); + +macro_rules! other { + ($name:ident) => { + #[my_macro] struct Three($name); + } +} + +fn main() { + struct Foo; + impl_macros!(Foo); + arrays!(Foo); + other!(Foo); +} diff --git a/src/test/ui/proc-macro/group-compat-hack/group-compat-hack.stdout b/src/test/ui/proc-macro/group-compat-hack/group-compat-hack.stdout new file mode 100644 index 00000000000..d519daab1f2 --- /dev/null +++ b/src/test/ui/proc-macro/group-compat-hack/group-compat-hack.stdout @@ -0,0 +1,3 @@ +Called proc_macro_hack with TokenStream [Ident { ident: "struct", span: $DIR/time-macros-impl/src/lib.rs:5:21: 5:27 (#5) }, Ident { ident: "One", span: $DIR/time-macros-impl/src/lib.rs:5:28: 5:31 (#5) }, Group { delimiter: Parenthesis, stream: TokenStream [Ident { ident: "Foo", span: $DIR/group-compat-hack.rs:27:18: 27:21 (#0) }], span: $DIR/time-macros-impl/src/lib.rs:5:31: 5:38 (#5) }, Punct { ch: ';', spacing: Alone, span: $DIR/time-macros-impl/src/lib.rs:5:38: 5:39 (#5) }] +Called proc_macro_hack with TokenStream [Ident { ident: "struct", span: $DIR/js-sys/src/lib.rs:5:21: 5:27 (#9) }, Ident { ident: "Two", span: $DIR/js-sys/src/lib.rs:5:28: 5:31 (#9) }, Group { delimiter: Parenthesis, stream: TokenStream [Ident { ident: "Foo", span: $DIR/group-compat-hack.rs:28:13: 28:16 (#0) }], span: $DIR/js-sys/src/lib.rs:5:31: 5:38 (#9) }, Punct { ch: ';', spacing: Alone, span: $DIR/js-sys/src/lib.rs:5:38: 5:39 (#9) }] +Called proc_macro_hack with TokenStream [Ident { ident: "struct", span: $DIR/group-compat-hack.rs:21:21: 21:27 (#13) }, Ident { ident: "Three", span: $DIR/group-compat-hack.rs:21:28: 21:33 (#13) }, Group { delimiter: Parenthesis, stream: TokenStream [Group { delimiter: None, stream: TokenStream [Ident { ident: "Foo", span: $DIR/group-compat-hack.rs:29:12: 29:15 (#0) }], span: $DIR/group-compat-hack.rs:21:34: 21:39 (#13) }], span: $DIR/group-compat-hack.rs:21:33: 21:40 (#13) }, Punct { ch: ';', spacing: Alone, span: $DIR/group-compat-hack.rs:21:40: 21:41 (#13) }] diff --git a/src/test/ui/proc-macro/group-compat-hack/js-sys/src/lib.rs b/src/test/ui/proc-macro/group-compat-hack/js-sys/src/lib.rs new file mode 100644 index 00000000000..d1a66940ebf --- /dev/null +++ b/src/test/ui/proc-macro/group-compat-hack/js-sys/src/lib.rs @@ -0,0 +1,7 @@ +// ignore-test this is not a test + +macro_rules! arrays { + ($name:ident) => { + #[my_macro] struct Two($name); + } +} diff --git a/src/test/ui/proc-macro/group-compat-hack/time-macros-impl/src/lib.rs b/src/test/ui/proc-macro/group-compat-hack/time-macros-impl/src/lib.rs new file mode 100644 index 00000000000..c94c3579209 --- /dev/null +++ b/src/test/ui/proc-macro/group-compat-hack/time-macros-impl/src/lib.rs @@ -0,0 +1,7 @@ +// ignore-test this is not a test + +macro_rules! impl_macros { + ($name:ident) => { + #[my_macro] struct One($name); + } +} |