From 942f0a6f7a82facc30501232e28759cab54a21b3 Mon Sep 17 00:00:00 2001
From: Mark Rousskov <mark.simulacrum@gmail.com>
Date: Fri, 15 Nov 2019 08:27:09 -0500
Subject: [PATCH] Move SourceMap to syntax_pos

This does not update the use sites or delete the now unnecessary
SourceMapper trait, to allow git to interpret the file move as a rename
rather than a new file.
---
 Cargo.lock                                           | 1 +
 src/libsyntax/lib.rs                                 | 2 +-
 src/libsyntax_pos/Cargo.toml                         | 1 +
 src/libsyntax_pos/lib.rs                             | 2 ++
 src/{libsyntax => libsyntax_pos}/source_map.rs       | 6 +++---
 src/{libsyntax => libsyntax_pos}/source_map/tests.rs | 0
 6 files changed, 8 insertions(+), 4 deletions(-)
 rename src/{libsyntax => libsyntax_pos}/source_map.rs (99%)
 rename src/{libsyntax => libsyntax_pos}/source_map/tests.rs (100%)

diff --git a/Cargo.lock b/Cargo.lock
index 781184af9a9..51bdc06eee8 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -4445,6 +4445,7 @@ version = "0.0.0"
 dependencies = [
  "arena",
  "cfg-if",
+ "log",
  "rustc_data_structures",
  "rustc_index",
  "rustc_macros",
diff --git a/src/libsyntax/lib.rs b/src/libsyntax/lib.rs
index 6290b2137ea..a1de0a2c9e4 100644
--- a/src/libsyntax/lib.rs
+++ b/src/libsyntax/lib.rs
@@ -92,7 +92,7 @@ pub mod json;
 pub mod ast;
 pub mod attr;
 pub mod expand;
-pub mod source_map;
+pub use syntax_pos::source_map;
 pub mod entry;
 pub mod feature_gate;
 pub mod mut_visit;
diff --git a/src/libsyntax_pos/Cargo.toml b/src/libsyntax_pos/Cargo.toml
index 378f7a955a3..2cac76085d2 100644
--- a/src/libsyntax_pos/Cargo.toml
+++ b/src/libsyntax_pos/Cargo.toml
@@ -18,3 +18,4 @@ arena = { path = "../libarena" }
 scoped-tls = "1.0"
 unicode-width = "0.1.4"
 cfg-if = "0.1.2"
+log = "0.4"
diff --git a/src/libsyntax_pos/lib.rs b/src/libsyntax_pos/lib.rs
index 50839638bb4..b88d6dbc3f3 100644
--- a/src/libsyntax_pos/lib.rs
+++ b/src/libsyntax_pos/lib.rs
@@ -16,6 +16,8 @@
 
 use rustc_serialize::{Encodable, Decodable, Encoder, Decoder};
 
+pub mod source_map;
+
 pub mod edition;
 use edition::Edition;
 pub mod hygiene;
diff --git a/src/libsyntax/source_map.rs b/src/libsyntax_pos/source_map.rs
similarity index 99%
rename from src/libsyntax/source_map.rs
rename to src/libsyntax_pos/source_map.rs
index d9f618602a4..035e61f9dea 100644
--- a/src/libsyntax/source_map.rs
+++ b/src/libsyntax_pos/source_map.rs
@@ -7,8 +7,8 @@
 //! within the `SourceMap`, which upon request can be converted to line and column
 //! information, source code snippets, etc.
 
-pub use syntax_pos::*;
-pub use syntax_pos::hygiene::{ExpnKind, ExpnData};
+pub use crate::*;
+pub use crate::hygiene::{ExpnKind, ExpnData};
 
 use rustc_data_structures::fx::FxHashMap;
 use rustc_data_structures::stable_hasher::StableHasher;
@@ -216,7 +216,7 @@ impl SourceMap {
         self.try_new_source_file(filename, src)
             .unwrap_or_else(|OffsetOverflowError| {
                 eprintln!("fatal error: rustc does not support files larger than 4GB");
-                errors::FatalError.raise()
+                crate::fatal_error::FatalError.raise()
             })
     }
 
diff --git a/src/libsyntax/source_map/tests.rs b/src/libsyntax_pos/source_map/tests.rs
similarity index 100%
rename from src/libsyntax/source_map/tests.rs
rename to src/libsyntax_pos/source_map/tests.rs