Explicitly export core and std macros

compiler/rustc_builtin_macros/src/standard_library_imports.rs

@@ -43,7 +43,7 @@ pub fn inject(
 
     let item = cx.item(
         span,
-        thin_vec![cx.attr_word(sym::macro_use, span)],
+        ast::AttrVec::new(),
         ast::ItemKind::ExternCrate(None, Ident::new(name, ident_span)),
     );
 

library/core/src/prelude/v1.rs

@@ -61,11 +61,26 @@ pub use crate::hash::macros::Hash;
 #[allow(deprecated)]
 #[doc(no_inline)]
 pub use crate::{
-    assert, cfg, column, compile_error, concat, concat_idents, env, file, format_args,
-    format_args_nl, include, include_bytes, include_str, line, log_syntax, module_path, option_env,
-    stringify, trace_macros,
+    assert, assert_eq, assert_ne, cfg, column, compile_error, concat, debug_assert, debug_assert_eq, debug_assert_ne, file, format_args, include, include_bytes, include_str, line, matches, module_path, option_env, stringify, todo, r#try, unimplemented, unreachable, write, writeln,
 };
 
+// These macros needs special handling, so that we don't export it *and* the modules of the same
+// name. We only want the macro in the prelude.
+mod ambiguous_macro_only {
+    #[allow(hidden_glob_reexports)]
+    mod env {}
+    #[allow(hidden_glob_reexports)]
+    mod panic {}
+    #[stable(feature = "builtin_macro_prelude", since = "1.38.0")]
+    pub use crate::*;
+}
+#[stable(feature = "builtin_macro_prelude", since = "1.38.0")]
+pub use self::ambiguous_macro_only::{env, panic};
+
+#[unstable(feature = "cfg_match", issue = "115585")]
+#[doc(no_inline)]
+pub use crate::cfg_match;
+
 #[unstable(
     feature = "concat_bytes",
     issue = "87555",
@@ -74,6 +89,38 @@ pub use crate::{
 #[doc(no_inline)]
 pub use crate::concat_bytes;
 
+#[unstable(
+    feature = "concat_idents",
+    issue = "29599",
+    reason = "`concat_idents` is not stable enough for use and is subject to change"
+)]
+#[doc(no_inline)]
+pub use crate::concat_idents;
+
+#[unstable(feature = "const_format_args", issue = "none")]
+#[doc(no_inline)]
+pub use crate::const_format_args;
+
+#[unstable(
+    feature = "log_syntax",
+    issue = "29598",
+    reason = "`log_syntax!` is not stable enough for use and is subject to change"
+)]
+#[doc(no_inline)]
+pub use crate::log_syntax;
+
+#[unstable(feature = "pattern_type_macro", issue = "123646")]
+#[doc(no_inline)]
+pub use crate::pattern_type;
+
+#[unstable(
+    feature = "trace_macros",
+    issue = "29598",
+    reason = "`trace_macros` is not stable enough for use and is subject to change"
+)]
+#[doc(no_inline)]
+pub use crate::trace_macros;
+
 // Do not `doc(no_inline)` so that they become doc items on their own
 // (no public module for them to be re-exported from).
 #[stable(feature = "builtin_macro_prelude", since = "1.38.0")]

library/proc_macro/src/bridge/symbol.rs

@@ -11,9 +11,12 @@
 
 use std::cell::RefCell;
 use std::num::NonZero;
-use std::str;
+use std::{fmt, str};
 
-use super::*;
+// Explicit import to avoid macro namespace collision.
+use super::{
+    DecodeMut, Encode, Mark, Marked, Reader, Unmark, Writer, arena, client, fxhash, server,
+};
 
 /// Handle for a symbol string stored within the Interner.
 #[derive(Copy, Clone, PartialEq, Eq, Hash)]

library/std/src/prelude/v1.rs

@@ -43,16 +43,37 @@ pub use crate::option::Option::{self, None, Some};
 #[doc(no_inline)]
 pub use crate::result::Result::{self, Err, Ok};
 
-// Re-exported built-in macros
+// Re-exported built-in macros and traits
 #[stable(feature = "builtin_macro_prelude", since = "1.38.0")]
 #[allow(deprecated)]
 #[doc(no_inline)]
 pub use core::prelude::v1::{
-    assert, cfg, column, compile_error, concat, concat_idents, env, file, format_args,
-    format_args_nl, include, include_bytes, include_str, line, log_syntax, module_path, option_env,
-    stringify, trace_macros, Clone, Copy, Debug, Default, Eq, Hash, Ord, PartialEq, PartialOrd,
+    assert, assert_eq, assert_ne, cfg, column, compile_error, concat, debug_assert, debug_assert_eq, debug_assert_ne, env, file, format_args, include, include_bytes, include_str, line, matches,
+    module_path, option_env, panic, stringify, todo, r#try, unimplemented, unreachable, write,
+    writeln, Clone, Copy, Debug, Default, Eq, Hash, Ord, PartialEq, PartialOrd,
 };
 
+#[stable(feature = "builtin_macro_prelude", since = "1.38.0")]
+#[doc(no_inline)]
+pub use crate::{
+    dbg, eprint, eprintln, format, is_x86_feature_detected, print, println, thread_local,
+};
+
+// These macros needs special handling, so that we don't export it *and* the modules of the same
+// name. We only want the macro in the prelude.
+mod ambiguous_macro_only_std {
+    #[allow(hidden_glob_reexports)]
+    mod vec {}
+    #[stable(feature = "builtin_macro_prelude", since = "1.38.0")]
+    pub use crate::*;
+}
+#[stable(feature = "builtin_macro_prelude", since = "1.38.0")]
+pub use self::ambiguous_macro_only_std::vec;
+
+#[unstable(feature = "cfg_match", issue = "115585")]
+#[doc(no_inline)]
+pub use core::prelude::v1::cfg_match;
+
 #[unstable(
     feature = "concat_bytes",
     issue = "87555",
@@ -61,6 +82,34 @@ pub use core::prelude::v1::{
 #[doc(no_inline)]
 pub use core::prelude::v1::concat_bytes;
 
+#[unstable(
+    feature = "concat_idents",
+    issue = "29599",
+    reason = "`concat_idents` is not stable enough for use and is subject to change"
+)]
+#[doc(no_inline)]
+pub use core::prelude::v1::concat_idents;
+
+#[unstable(feature = "const_format_args", issue = "none")]
+#[doc(no_inline)]
+pub use core::prelude::v1::const_format_args;
+
+#[unstable(
+    feature = "log_syntax",
+    issue = "29598",
+    reason = "`log_syntax!` is not stable enough for use and is subject to change"
+)]
+#[doc(no_inline)]
+pub use core::prelude::v1::log_syntax;
+
+#[unstable(
+    feature = "trace_macros",
+    issue = "29598",
+    reason = "`trace_macros` is not stable enough for use and is subject to change"
+)]
+#[doc(no_inline)]
+pub use core::prelude::v1::trace_macros;
+
 // Do not `doc(no_inline)` so that they become doc items on their own
 // (no public module for them to be re-exported from).
 #[stable(feature = "builtin_macro_prelude", since = "1.38.0")]

library/std/src/process.rs

@@ -171,7 +171,7 @@ use crate::sys::process as imp;
 #[stable(feature = "command_access", since = "1.57.0")]
 pub use crate::sys_common::process::CommandEnvs;
 use crate::sys_common::{AsInner, AsInnerMut, FromInner, IntoInner};
-use crate::{fmt, fs, str};
+use crate::{fmt, format_args_nl, fs, str};
 
 /// Representation of a running or exited child process.
 ///

src/librustdoc/html/highlight.rs

@@ -7,6 +7,7 @@
 
 use std::collections::VecDeque;
 use std::fmt::{Display, Write};
+use std::format_args_nl;
 
 use rustc_data_structures::fx::FxIndexMap;
 use rustc_lexer::{Cursor, LiteralKind, TokenKind};

src/tools/rust-analyzer/crates/ide/src/syntax_highlighting/tests.rs

@@ -445,7 +445,7 @@ fn test_string_highlighting() {
 //- minicore: fmt, assert, asm, concat, panic
 macro_rules! println {
     ($($arg:tt)*) => ({
-        $crate::io::_print(format_args_nl!($($arg)*));
+        $crate::io::_print(std::format_args_nl!($($arg)*));
     })
 }
 

tests/ui/hygiene/format-args.rs

@@ -3,6 +3,8 @@
 #![allow(non_upper_case_globals)]
 #![feature(format_args_nl)]
 
+use std::format_args_nl;
+
 static arg0: () = ();
 
 fn main() {