Rollup merge of #52302 - ljedrz:dyn_futureproofing, r=cramertj

Deny bare trait objects in the rest of rust

Add `#![deny(bare_trait_objects)]` to all the modules not covered before (those did not require code changes) that I consider applicable (I left out shims) in order to futureproof them.

src/build_helper/lib.rs

@@ -8,6 +8,8 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
+#![deny(bare_trait_objects)]
+
 use std::fs::File;
 use std::path::{Path, PathBuf};
 use std::process::{Command, Stdio};

src/liballoc_jemalloc/lib.rs

@@ -10,6 +10,7 @@
 
 #![no_std]
 #![allow(unused_attributes)]
+#![deny(bare_trait_objects)]
 #![unstable(feature = "alloc_jemalloc",
             reason = "implementation detail of std, does not provide any public API",
             issue = "0")]

src/liballoc_system/lib.rs

@@ -10,6 +10,7 @@
 
 #![no_std]
 #![allow(unused_attributes)]
+#![deny(bare_trait_objects)]
 #![unstable(feature = "alloc_system",
             reason = "this library is unlikely to be stabilized in its current \
                       form or name",

src/libarena/lib.rs

@@ -30,6 +30,7 @@
 #![cfg_attr(test, feature(test))]
 
 #![allow(deprecated)]
+#![deny(bare_trait_objects)]
 
 extern crate alloc;
 extern crate rustc_data_structures;

src/libfmt_macros/lib.rs

@@ -14,6 +14,8 @@
 //! Parsing does not happen at runtime: structures of `std::fmt::rt` are
 //! generated instead.
 
+#![deny(bare_trait_objects)]
+
 #![doc(html_logo_url = "https://www.rust-lang.org/logos/rust-logo-128x128-blk-v2.png",
        html_favicon_url = "https://doc.rust-lang.org/favicon.ico",
        html_root_url = "https://doc.rust-lang.org/nightly/",

src/libgraphviz/lib.rs

@@ -283,6 +283,8 @@
 //!
 //! * [DOT language](http://www.graphviz.org/doc/info/lang.html)
 
+#![deny(bare_trait_objects)]
+
 #![doc(html_logo_url = "https://www.rust-lang.org/logos/rust-logo-128x128-blk-v2.png",
        html_favicon_url = "https://doc.rust-lang.org/favicon.ico",
        html_root_url = "https://doc.rust-lang.org/nightly/",

src/libpanic_abort/lib.rs

@@ -21,6 +21,7 @@
        issue_tracker_base_url = "https://github.com/rust-lang/rust/issues/")]
 #![panic_runtime]
 #![allow(unused_features)]
+#![deny(bare_trait_objects)]
 
 #![feature(core_intrinsics)]
 #![feature(libc)]

src/libproc_macro/lib.rs

@@ -22,6 +22,7 @@
 //! See [the book](../book/first-edition/procedural-macros.html) for more.
 
 #![stable(feature = "proc_macro_lib", since = "1.15.0")]
+#![deny(bare_trait_objects)]
 #![deny(missing_docs)]
 #![doc(html_logo_url = "https://www.rust-lang.org/logos/rust-logo-128x128-blk-v2.png",
        html_favicon_url = "https://doc.rust-lang.org/favicon.ico",

src/libprofiler_builtins/lib.rs

@@ -15,4 +15,5 @@
             reason = "internal implementation detail of rustc right now",
             issue = "0")]
 #![allow(unused_features)]
+#![deny(bare_trait_objects)]
 #![feature(staged_api)]

src/librustc_apfloat/lib.rs

@@ -40,6 +40,8 @@
 //!
 //! This API is completely unstable and subject to change.
 
+#![deny(bare_trait_objects)]
+
 #![doc(html_logo_url = "https://www.rust-lang.org/logos/rust-logo-128x128-blk-v2.png",
       html_favicon_url = "https://doc.rust-lang.org/favicon.ico",
       html_root_url = "https://doc.rust-lang.org/nightly/")]

src/librustc_asan/lib.rs

@@ -8,6 +8,8 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
+#![deny(bare_trait_objects)]
+
 #![sanitizer_runtime]
 #![feature(alloc_system)]
 #![feature(sanitizer_runtime)]

src/librustc_borrowck/lib.rs

@@ -13,6 +13,7 @@
       html_root_url = "https://doc.rust-lang.org/nightly/")]
 
 #![allow(non_camel_case_types)]
+#![deny(bare_trait_objects)]
 
 #![feature(from_ref)]
 #![feature(quote)]

src/librustc_incremental/lib.rs

@@ -10,6 +10,8 @@
 
 //! Support for serializing the dep-graph and reloading it.
 
+#![deny(bare_trait_objects)]
+
 #![doc(html_logo_url = "https://www.rust-lang.org/logos/rust-logo-128x128-blk-v2.png",
       html_favicon_url = "https://doc.rust-lang.org/favicon.ico",
       html_root_url = "https://doc.rust-lang.org/nightly/")]

src/librustc_lint/lib.rs

@@ -19,6 +19,8 @@
 //!
 //! This API is completely unstable and subject to change.
 
+#![deny(bare_trait_objects)]
+
 #![doc(html_logo_url = "https://www.rust-lang.org/logos/rust-logo-128x128-blk-v2.png",
       html_favicon_url = "https://doc.rust-lang.org/favicon.ico",
       html_root_url = "https://doc.rust-lang.org/nightly/")]

src/librustc_llvm/lib.rs

@@ -12,6 +12,7 @@
 #![allow(non_camel_case_types)]
 #![allow(non_snake_case)]
 #![allow(dead_code)]
+#![deny(bare_trait_objects)]
 
 #![doc(html_logo_url = "https://www.rust-lang.org/logos/rust-logo-128x128-blk-v2.png",
        html_favicon_url = "https://doc.rust-lang.org/favicon.ico",

src/librustc_lsan/lib.rs

@@ -8,6 +8,8 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
+#![deny(bare_trait_objects)]
+
 #![sanitizer_runtime]
 #![feature(alloc_system)]
 #![feature(sanitizer_runtime)]

src/librustc_mir/lib.rs

@@ -14,6 +14,8 @@
 
 */
 
+#![deny(bare_trait_objects)]
+
 #![feature(slice_patterns)]
 #![feature(slice_sort_by_cached_key)]
 #![feature(from_ref)]

src/librustc_msan/lib.rs

@@ -8,6 +8,8 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
+#![deny(bare_trait_objects)]
+
 #![sanitizer_runtime]
 #![feature(alloc_system)]
 #![feature(sanitizer_runtime)]

src/librustc_passes/lib.rs

@@ -14,6 +14,8 @@
 //!
 //! This API is completely unstable and subject to change.
 
+#![deny(bare_trait_objects)]
+
 #![doc(html_logo_url = "https://www.rust-lang.org/logos/rust-logo-128x128-blk-v2.png",
        html_favicon_url = "https://doc.rust-lang.org/favicon.ico",
        html_root_url = "https://doc.rust-lang.org/nightly/")]

src/librustc_platform_intrinsics/lib.rs

@@ -9,6 +9,7 @@
 // except according to those terms.
 
 #![allow(bad_style)]
+#![deny(bare_trait_objects)]
 
 pub struct Intrinsic {
     pub inputs: &'static [&'static Type],

src/librustc_plugin/lib.rs

@@ -60,6 +60,8 @@
 //! See the [`plugin` feature](../unstable-book/language-features/plugin.html) of
 //! the Unstable Book for more examples.
 
+#![deny(bare_trait_objects)]
+
 #![doc(html_logo_url = "https://www.rust-lang.org/logos/rust-logo-128x128-blk-v2.png",
        html_favicon_url = "https://doc.rust-lang.org/favicon.ico",
        html_root_url = "https://doc.rust-lang.org/nightly/")]

src/librustc_privacy/lib.rs

@@ -8,6 +8,8 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
+#![deny(bare_trait_objects)]
+
 #![doc(html_logo_url = "https://www.rust-lang.org/logos/rust-logo-128x128-blk-v2.png",
        html_favicon_url = "https://doc.rust-lang.org/favicon.ico",
        html_root_url = "https://doc.rust-lang.org/nightly/")]

src/librustc_traits/lib.rs

@@ -11,6 +11,8 @@
 //! New recursive solver modeled on Chalk's recursive solver. Most of
 //! the guts are broken up into modules; see the comments in those modules.
 
+#![deny(bare_trait_objects)]
+
 #![feature(crate_in_paths)]
 #![feature(crate_visibility_modifier)]
 #![feature(extern_prelude)]

src/librustc_tsan/lib.rs

@@ -8,6 +8,8 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
+#![deny(bare_trait_objects)]
+
 #![sanitizer_runtime]
 #![feature(alloc_system)]
 #![feature(sanitizer_runtime)]

src/libsyntax_pos/lib.rs

@@ -14,6 +14,8 @@
 //!
 //! This API is completely unstable and subject to change.
 
+#![deny(bare_trait_objects)]
+
 #![doc(html_logo_url = "https://www.rust-lang.org/logos/rust-logo-128x128-blk-v2.png",
       html_favicon_url = "https://doc.rust-lang.org/favicon.ico",
       html_root_url = "https://doc.rust-lang.org/nightly/")]

src/libunwind/lib.rs

@@ -8,6 +8,8 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
+#![deny(bare_trait_objects)]
+
 #![no_std]
 #![unstable(feature = "panic_unwind", issue = "32837")]