5cccf3cd25
This commit is an implementation of [RFC 1184][rfc] which tweaks the behavior of the `#![no_std]` attribute and adds a new `#![no_core]` attribute. The `#![no_std]` attribute now injects `extern crate core` at the top of the crate as well as the libcore prelude into all modules (in the same manner as the standard library's prelude). The `#![no_core]` attribute disables both std and core injection. [rfc]: https://github.com/rust-lang/rfcs/pull/1184
33 lines
856 B
Rust
33 lines
856 B
Rust
// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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// no-prefer-dynamic
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// This aux-file will require the eh_personality function to be codegen'd, but
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// it hasn't been defined just yet. Make sure we don't explode.
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#![feature(no_std)]
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#![no_std]
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#![crate_type = "rlib"]
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struct A;
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impl core::ops::Drop for A {
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fn drop(&mut self) {}
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}
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pub fn foo() {
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let _a = A;
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panic!("wut");
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}
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mod std {
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pub use core::{option, fmt};
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}
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