syntax: move GLOBALS to attr module

Author: Centril

src/librustc_expand/expand.rs

@@ -1671,7 +1671,7 @@ impl<'a, 'b> MutVisitor for InvocationCollector<'a, 'b> {
             }
 
             let meta = attr::mk_list_item(Ident::with_dummy_span(sym::doc), items);
-            *at = attr::Attribute {
+            *at = ast::Attribute {
                 kind: ast::AttrKind::Normal(AttrItem {
                     path: meta.path,
                     args: meta.kind.mac_args(meta.span),

src/librustc_interface/interface.rs

@@ -65,7 +65,7 @@ impl Compiler {
 
 /// Converts strings provided as `--cfg [cfgspec]` into a `crate_cfg`.
 pub fn parse_cfgspecs(cfgspecs: Vec<String>) -> FxHashSet<(String, Option<String>)> {
-    syntax::with_default_globals(move || {
+    syntax::attr::with_default_globals(move || {
         let cfg = cfgspecs
             .into_iter()
             .map(|s| {

src/librustc_interface/util.rs

@@ -146,7 +146,7 @@ pub fn spawn_thread_pool<F: FnOnce() -> R + Send, R: Send>(
     crate::callbacks::setup_callbacks();
 
     scoped_thread(cfg, || {
-        syntax::with_globals(edition, || {
+        syntax::attr::with_globals(edition, || {
             ty::tls::GCX_PTR.set(&Lock::new(0), || {
                 if let Some(stderr) = stderr {
                     io::set_panic(Some(box Sink(stderr.clone())));

src/librustdoc/test.rs

@@ -18,7 +18,7 @@ use std::path::PathBuf;
 use std::process::{self, Command, Stdio};
 use std::str;
 use syntax::ast;
-use syntax::with_globals;
+use syntax::attr::with_globals;
 use tempfile::Builder as TempFileBuilder;
 use testing;
 

src/libsyntax/attr/mod.rs

@@ -2,22 +2,24 @@
 
 mod builtin;
 
-pub use crate::ast::Attribute;
 pub use builtin::*;
 pub use IntType::*;
 pub use ReprAttr::*;
 pub use StabilityLevel::*;
 
 use crate::ast;
-use crate::ast::{AttrId, AttrItem, AttrKind, AttrStyle, AttrVec, Ident, Name, Path, PathSegment};
+use crate::ast::{AttrId, AttrItem, AttrKind, AttrStyle, AttrVec, Attribute};
 use crate::ast::{Expr, GenericParam, Item, Lit, LitKind, Local, Stmt, StmtKind};
+use crate::ast::{Ident, Name, Path, PathSegment};
 use crate::ast::{MacArgs, MacDelimiter, MetaItem, MetaItemKind, NestedMetaItem};
 use crate::mut_visit::visit_clobber;
 use crate::ptr::P;
 use crate::token::{self, Token};
 use crate::tokenstream::{DelimSpan, TokenStream, TokenTree, TreeAndJoint};
-use crate::GLOBALS;
 
+use rustc_data_structures::sync::Lock;
+use rustc_index::bit_set::GrowableBitSet;
+use rustc_span::edition::{Edition, DEFAULT_EDITION};
 use rustc_span::source_map::{BytePos, Spanned};
 use rustc_span::symbol::{sym, Symbol};
 use rustc_span::Span;
@@ -26,6 +28,35 @@ use log::debug;
 use std::iter;
 use std::ops::DerefMut;
 
+pub struct Globals {
+    used_attrs: Lock<GrowableBitSet<AttrId>>,
+    known_attrs: Lock<GrowableBitSet<AttrId>>,
+    rustc_span_globals: rustc_span::Globals,
+}
+
+impl Globals {
+    fn new(edition: Edition) -> Globals {
+        Globals {
+            // We have no idea how many attributes there will be, so just
+            // initiate the vectors with 0 bits. We'll grow them as necessary.
+            used_attrs: Lock::new(GrowableBitSet::new_empty()),
+            known_attrs: Lock::new(GrowableBitSet::new_empty()),
+            rustc_span_globals: rustc_span::Globals::new(edition),
+        }
+    }
+}
+
+pub fn with_globals<R>(edition: Edition, f: impl FnOnce() -> R) -> R {
+    let globals = Globals::new(edition);
+    GLOBALS.set(&globals, || rustc_span::GLOBALS.set(&globals.rustc_span_globals, f))
+}
+
+pub fn with_default_globals<R>(f: impl FnOnce() -> R) -> R {
+    with_globals(DEFAULT_EDITION, f)
+}
+
+scoped_tls::scoped_thread_local!(pub static GLOBALS: Globals);
+
 pub fn mark_used(attr: &Attribute) {
     debug!("marking {:?} as used", attr);
     GLOBALS.with(|globals| {

src/libsyntax/lib.rs

@@ -17,11 +17,6 @@
 #![feature(unicode_internals)]
 #![recursion_limit = "256"]
 
-use ast::AttrId;
-use rustc_data_structures::sync::Lock;
-use rustc_index::bit_set::GrowableBitSet;
-use rustc_span::edition::{Edition, DEFAULT_EDITION};
-
 #[macro_export]
 macro_rules! unwrap_or {
     ($opt:expr, $default:expr) => {
@@ -32,35 +27,6 @@ macro_rules! unwrap_or {
     };
 }
 
-pub struct Globals {
-    used_attrs: Lock<GrowableBitSet<AttrId>>,
-    known_attrs: Lock<GrowableBitSet<AttrId>>,
-    rustc_span_globals: rustc_span::Globals,
-}
-
-impl Globals {
-    fn new(edition: Edition) -> Globals {
-        Globals {
-            // We have no idea how many attributes there will be, so just
-            // initiate the vectors with 0 bits. We'll grow them as necessary.
-            used_attrs: Lock::new(GrowableBitSet::new_empty()),
-            known_attrs: Lock::new(GrowableBitSet::new_empty()),
-            rustc_span_globals: rustc_span::Globals::new(edition),
-        }
-    }
-}
-
-pub fn with_globals<R>(edition: Edition, f: impl FnOnce() -> R) -> R {
-    let globals = Globals::new(edition);
-    GLOBALS.set(&globals, || rustc_span::GLOBALS.set(&globals.rustc_span_globals, f))
-}
-
-pub fn with_default_globals<R>(f: impl FnOnce() -> R) -> R {
-    with_globals(DEFAULT_EDITION, f)
-}
-
-scoped_tls::scoped_thread_local!(pub static GLOBALS: Globals);
-
 pub mod util {
     pub mod classify;
     pub mod comments;