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Improve resolution of associated types in macros 2.0
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Original file line number | Diff line number | Diff line change |
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// Copyright 2017 The Rust Project Developers. See the COPYRIGHT | ||
// file at the top-level directory of this distribution and at | ||
// http://rust-lang.org/COPYRIGHT. | ||
// | ||
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or | ||
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license | ||
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your | ||
// option. This file may not be copied, modified, or distributed | ||
// except according to those terms. | ||
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// ignore-pretty pretty-printing is unhygienic | ||
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#![feature(decl_macro)] | ||
#![allow(unused)] | ||
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mod ok { | ||
macro mac_trait_item($method: ident) { | ||
fn $method(); | ||
} | ||
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trait Tr { | ||
mac_trait_item!(method); | ||
} | ||
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macro mac_trait_impl() { | ||
impl Tr for u8 { // OK | ||
fn method() {} // OK | ||
} | ||
} | ||
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mac_trait_impl!(); | ||
} | ||
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mod error { | ||
macro mac_trait_item() { | ||
fn method(); | ||
} | ||
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trait Tr { | ||
mac_trait_item!(); | ||
} | ||
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macro mac_trait_impl() { | ||
impl Tr for u8 { //~ ERROR not all trait items implemented, missing: `method` | ||
fn method() {} //~ ERROR method `method` is not a member of trait `Tr` | ||
} | ||
} | ||
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mac_trait_impl!(); | ||
} | ||
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fn main() {} |
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,49 @@ | ||
// Copyright 2017 The Rust Project Developers. See the COPYRIGHT | ||
// file at the top-level directory of this distribution and at | ||
// http://rust-lang.org/COPYRIGHT. | ||
// | ||
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or | ||
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license | ||
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your | ||
// option. This file may not be copied, modified, or distributed | ||
// except according to those terms. | ||
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// ignore-pretty pretty-printing is unhygienic | ||
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#![feature(decl_macro, associated_type_defaults)] | ||
#![feature(rustc_attrs)] | ||
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trait Base { | ||
type AssocTy; | ||
fn f(); | ||
} | ||
trait Derived: Base { | ||
fn g(); | ||
} | ||
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macro mac() { | ||
type A = Base<AssocTy = u8>; | ||
type B = Derived<AssocTy = u8>; | ||
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impl Base for u8 { | ||
type AssocTy = u8; | ||
fn f() { | ||
let _: Self::AssocTy; | ||
} | ||
} | ||
impl Derived for u8 { | ||
fn g() { | ||
let _: Self::AssocTy; | ||
} | ||
} | ||
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fn h<T: Base, U: Derived>() { | ||
let _: T::AssocTy; | ||
let _: U::AssocTy; | ||
} | ||
} | ||
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mac!(); | ||
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#[rustc_error] | ||
fn main() {} //~ ERROR compilation successful |
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