middle::entry -> rustc_passes

Author: Mark-Simulacrum

src/librustc/error_codes.rs

@@ -466,66 +466,6 @@ fn main() {
 ```
 "##,
 
-// This shouldn't really ever trigger since the repeated value error comes first
-E0136: r##"
-A binary can only have one entry point, and by default that entry point is the
-function `main()`. If there are multiple such functions, please rename one.
-"##,
-
-E0137: r##"
-More than one function was declared with the `#[main]` attribute.
-
-Erroneous code example:
-
-```compile_fail,E0137
-#![feature(main)]
-
-#[main]
-fn foo() {}
-
-#[main]
-fn f() {} // error: multiple functions with a `#[main]` attribute
-```
-
-This error indicates that the compiler found multiple functions with the
-`#[main]` attribute. This is an error because there must be a unique entry
-point into a Rust program. Example:
-
-```
-#![feature(main)]
-
-#[main]
-fn f() {} // ok!
-```
-"##,
-
-E0138: r##"
-More than one function was declared with the `#[start]` attribute.
-
-Erroneous code example:
-
-```compile_fail,E0138
-#![feature(start)]
-
-#[start]
-fn foo(argc: isize, argv: *const *const u8) -> isize {}
-
-#[start]
-fn f(argc: isize, argv: *const *const u8) -> isize {}
-// error: multiple 'start' functions
-```
-
-This error indicates that the compiler found multiple functions with the
-`#[start]` attribute. This is an error because there must be a unique entry
-point into a Rust program. Example:
-
-```
-#![feature(start)]
-
-#[start]
-fn foo(argc: isize, argv: *const *const u8) -> isize { 0 } // ok!
-```
-"##,
 
 E0139: r##"
 #### Note: this error code is no longer emitted by the compiler.
@@ -1941,21 +1881,6 @@ fn main() {
 ```
 "##,
 
-E0601: r##"
-No `main` function was found in a binary crate. To fix this error, add a
-`main` function. For example:
-
-```
-fn main() {
-    // Your program will start here.
-    println!("Hello world!");
-}
-```
-
-If you don't know the basics of Rust, you can go look to the Rust Book to get
-started: https://doc.rust-lang.org/book/
-"##,
-
 E0602: r##"
 An unknown lint was used on the command line.
 

src/librustc/lib.rs

@@ -104,7 +104,6 @@ pub mod middle {
     pub mod cstore;
     pub mod dependency_format;
     pub mod diagnostic_items;
-    pub mod entry;
     pub mod exported_symbols;
     pub mod free_region;
     pub mod intrinsicck;

src/librustc_interface/passes.rs

@@ -785,7 +785,6 @@ pub fn default_provide(providers: &mut ty::query::Providers<'_>) {
     rustc_passes::provide(providers);
     rustc_traits::provide(providers);
     middle::region::provide(providers);
-    middle::entry::provide(providers);
     cstore::provide(providers);
     lint::provide(providers);
     rustc_lint::provide(providers);
@@ -891,7 +890,7 @@ fn analysis(tcx: TyCtxt<'_>, cnum: CrateNum) -> Result<()> {
     time(sess, "misc checking 1", || {
         parallel!({
             entry_point = time(sess, "looking for entry point", || {
-                middle::entry::find_entry_point(tcx)
+                rustc_passes::entry::find_entry_point(tcx)
             });
 
             time(sess, "looking for plugin registrar", || {

src/librustc/middle/entry.rs renamed to src/librustc_passes/entry.rs

@@ -1,15 +1,15 @@
-use crate::hir::map as hir_map;
-use crate::hir::def_id::{CrateNum, CRATE_DEF_INDEX, DefId, LOCAL_CRATE};
-use crate::session::{config, Session};
-use crate::session::config::EntryFnType;
+use rustc::hir::map as hir_map;
+use rustc::hir::def_id::{CrateNum, CRATE_DEF_INDEX, DefId, LOCAL_CRATE};
+use rustc::session::{config, Session};
+use rustc::session::config::EntryFnType;
 use syntax::attr;
 use syntax::entry::EntryPointType;
 use syntax::symbol::sym;
 use syntax_pos::Span;
-use crate::hir::{HirId, Item, ItemKind, ImplItem, TraitItem};
-use crate::hir::itemlikevisit::ItemLikeVisitor;
-use crate::ty::TyCtxt;
-use crate::ty::query::Providers;
+use rustc::hir::{HirId, Item, ItemKind, ImplItem, TraitItem};
+use rustc::hir::itemlikevisit::ItemLikeVisitor;
+use rustc::ty::TyCtxt;
+use rustc::ty::query::Providers;
 
 struct EntryContext<'a, 'tcx> {
     session: &'a Session,

src/librustc_passes/error_codes.rs

@@ -319,6 +319,83 @@ async fn foo() {}
 
 Switch to the Rust 2018 edition to use `async fn`.
 "##,
+
+// This shouldn't really ever trigger since the repeated value error comes first
+E0136: r##"
+A binary can only have one entry point, and by default that entry point is the
+function `main()`. If there are multiple such functions, please rename one.
+"##,
+
+E0137: r##"
+More than one function was declared with the `#[main]` attribute.
+
+Erroneous code example:
+
+```compile_fail,E0137
+#![feature(main)]
+
+#[main]
+fn foo() {}
+
+#[main]
+fn f() {} // error: multiple functions with a `#[main]` attribute
+```
+
+This error indicates that the compiler found multiple functions with the
+`#[main]` attribute. This is an error because there must be a unique entry
+point into a Rust program. Example:
+
+```
+#![feature(main)]
+
+#[main]
+fn f() {} // ok!
+```
+"##,
+
+E0138: r##"
+More than one function was declared with the `#[start]` attribute.
+
+Erroneous code example:
+
+```compile_fail,E0138
+#![feature(start)]
+
+#[start]
+fn foo(argc: isize, argv: *const *const u8) -> isize {}
+
+#[start]
+fn f(argc: isize, argv: *const *const u8) -> isize {}
+// error: multiple 'start' functions
+```
+
+This error indicates that the compiler found multiple functions with the
+`#[start]` attribute. This is an error because there must be a unique entry
+point into a Rust program. Example:
+
+```
+#![feature(start)]
+
+#[start]
+fn foo(argc: isize, argv: *const *const u8) -> isize { 0 } // ok!
+```
+"##,
+
+E0601: r##"
+No `main` function was found in a binary crate. To fix this error, add a
+`main` function. For example:
+
+```
+fn main() {
+    // Your program will start here.
+    println!("Hello world!");
+}
+```
+
+If you don't know the basics of Rust, you can go look to the Rust Book to get
+started: https://doc.rust-lang.org/book/
+"##,
+
 ;
     E0226, // only a single explicit lifetime bound is permitted
     E0472, // asm! is unsupported on this target

src/librustc_passes/lib.rs

@@ -13,6 +13,10 @@
 
 #[macro_use]
 extern crate rustc;
+#[macro_use]
+extern crate log;
+#[macro_use]
+extern crate syntax;
 
 use rustc::ty::query::Providers;
 
@@ -23,9 +27,11 @@ pub mod hir_stats;
 pub mod layout_test;
 pub mod loops;
 pub mod dead;
+pub mod entry;
 mod liveness;
 
 pub fn provide(providers: &mut Providers<'_>) {
+    entry::provide(providers);
     loops::provide(providers);
     liveness::provide(providers);
 }