mirror of https://github.com/rust-lang/rust
62 lines
1.1 KiB
Rust
62 lines
1.1 KiB
Rust
//@ run-pass
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//@ aux-build:double.rs
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//@ aux-build:external-crate-var.rs
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#![allow(unused)]
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#[macro_use]
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extern crate double;
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#[macro_use]
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extern crate external_crate_var;
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struct Foo;
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trait Trait {
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const CONST: u32;
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type Assoc;
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}
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impl Trait for Foo {
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const CONST: u32 = 0;
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type Assoc = Foo;
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}
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macro_rules! local { () => {
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// derive_Double outputs secondary copies of each definition
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// to test what the proc_macro sees.
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mod bar {
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#[derive(Double)]
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struct Bar($crate::Foo);
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}
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mod qself {
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#[derive(Double)]
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struct QSelf(<::Foo as $crate::Trait>::Assoc);
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}
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mod qself_recurse {
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#[derive(Double)]
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struct QSelfRecurse(<<$crate::Foo as $crate::Trait>::Assoc as $crate::Trait>::Assoc);
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}
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mod qself_in_const {
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#[derive(Double)]
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#[repr(u32)]
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enum QSelfInConst {
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Variant = <::Foo as $crate::Trait>::CONST,
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}
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}
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} }
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mod local {
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local!();
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}
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// and now repeat the above tests, using a macro defined in another crate
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mod external {
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external!{}
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}
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fn main() {}
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