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Rollup merge of rust-lang#41432 - abonander:issue_41211, r=jseyfried
Don't panic if an attribute macro fails to resolve at crate root Adds temporary regression test; this ideally should work as-is (rust-lang#41430) Closes rust-lang#41211 r? @jseyfried
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src/test/compile-fail-fulldeps/proc-macro/auxiliary/issue-41211.rs
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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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// force-host | ||
// no-prefer-dynamic | ||
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#![crate_type = "proc-macro"] | ||
#![feature(proc_macro)] | ||
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extern crate proc_macro; | ||
use proc_macro::TokenStream; | ||
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#[proc_macro_attribute] | ||
pub fn emit_unchanged(_args: TokenStream, input: TokenStream) -> TokenStream { | ||
input | ||
} |
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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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// aux-build:issue-41211.rs | ||
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// FIXME: https://github.com/rust-lang/rust/issues/41430 | ||
// This is a temporary regression test for the ICE reported in #41211 | ||
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#![feature(proc_macro)] | ||
#![emit_unchanged] | ||
//~^ ERROR: cannot find attribute macro `emit_unchanged` in this scope | ||
extern crate issue_41211; | ||
use issue_41211::emit_unchanged; | ||
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fn main() {} |