Auto merge of #26141 - eddyb:ast_map, r=nikomatsakis

Gets libsyntax one step closer to running on stable (see #24518).
Closes #24757, erickt's previous attempt at this.

Author: bors

src/libsyntax/ast_map/blocks.rs renamed to src/librustc/ast_map/blocks.rs

@@ -23,13 +23,12 @@
 
 pub use self::Code::*;
 
-use abi;
-use ast::{Block, FnDecl, NodeId};
-use ast;
-use ast_map::Node;
-use ast_map;
-use codemap::Span;
-use visit;
+use ast_map::{self, Node};
+use syntax::abi;
+use syntax::ast::{Block, FnDecl, NodeId};
+use syntax::ast;
+use syntax::codemap::Span;
+use syntax::visit;
 
 /// An FnLikeNode is a Node that is like a fn, in that it has a decl
 /// and a body (as well as a NodeId, a span, etc).

src/libsyntax/ast_map/mod.rs renamed to src/librustc/ast_map/mod.rs

@@ -12,14 +12,14 @@ pub use self::Node::*;
 pub use self::PathElem::*;
 use self::MapEntry::*;
 
-use abi;
-use ast::*;
-use ast_util;
-use codemap::{DUMMY_SP, Span, Spanned};
-use fold::Folder;
-use parse::token;
-use print::pprust;
-use visit::{self, Visitor};
+use syntax::abi;
+use syntax::ast::*;
+use syntax::ast_util;
+use syntax::codemap::{DUMMY_SP, Span, Spanned};
+use syntax::fold::Folder;
+use syntax::parse::token;
+use syntax::print::pprust;
+use syntax::visit::{self, Visitor};
 
 use arena::TypedArena;
 use std::cell::RefCell;

src/librustc/lib.rs

@@ -92,6 +92,8 @@ pub mod back {
     pub use rustc_back::x86_64;
 }
 
+pub mod ast_map;
+
 pub mod middle {
     pub mod astconv_util;
     pub mod astencode;

src/librustc/metadata/csearch.rs

@@ -10,6 +10,7 @@
 
 // Searching for information from the cstore
 
+use ast_map;
 use metadata::common::*;
 use metadata::cstore;
 use metadata::decoder;
@@ -20,7 +21,6 @@ use rbml;
 use rbml::reader;
 use std::rc::Rc;
 use syntax::ast;
-use syntax::ast_map;
 use syntax::attr;
 use syntax::attr::AttrMetaMethods;
 use syntax::diagnostic::expect;

src/librustc/metadata/decoder.rs

@@ -15,6 +15,7 @@
 pub use self::DefLike::*;
 use self::Family::*;
 
+use ast_map;
 use back::svh::Svh;
 use metadata::cstore::crate_metadata;
 use metadata::common::*;
@@ -44,7 +45,6 @@ use std::str;
 use rbml::reader;
 use rbml;
 use serialize::Decodable;
-use syntax::ast_map;
 use syntax::attr;
 use syntax::parse::token::{IdentInterner, special_idents};
 use syntax::parse::token;

src/librustc/metadata/encoder.rs

@@ -15,6 +15,7 @@
 
 pub use self::InlinedItemRef::*;
 
+use ast_map::{self, LinkedPath, PathElem, PathElems};
 use back::svh::Svh;
 use session::config;
 use metadata::common::*;
@@ -34,7 +35,6 @@ use std::io::prelude::*;
 use std::io::{Cursor, SeekFrom};
 use syntax::abi;
 use syntax::ast::{self, DefId, NodeId};
-use syntax::ast_map::{self, LinkedPath, PathElem, PathElems};
 use syntax::ast_util::*;
 use syntax::ast_util;
 use syntax::attr;

src/librustc/middle/astencode.rs

@@ -12,6 +12,7 @@
 // FIXME: remove this after snapshot, and Results are handled
 #![allow(unused_must_use)]
 
+use ast_map;
 use metadata::common as c;
 use metadata::cstore as cstore;
 use session::Session;
@@ -32,7 +33,7 @@ use middle::subst::VecPerParamSpace;
 use middle::ty::{self, Ty, MethodCall, MethodCallee, MethodOrigin};
 use util::ppaux::ty_to_string;
 
-use syntax::{ast, ast_map, ast_util, codemap, fold};
+use syntax::{ast, ast_util, codemap, fold};
 use syntax::codemap::Span;
 use syntax::fold::Folder;
 use syntax::parse::token;

src/librustc/middle/cfg/graphviz.rs

@@ -17,8 +17,8 @@ use std::borrow::IntoCow;
 use graphviz as dot;
 
 use syntax::ast;
-use syntax::ast_map;
 
+use ast_map;
 use middle::cfg;
 
 pub type Node<'a> = (cfg::CFGIndex, &'a cfg::CFGNode);

src/librustc/middle/check_static_recursion.rs

@@ -11,11 +11,11 @@
 // This compiler pass detects static items that refer to themselves
 // recursively.
 
+use ast_map;
 use session::Session;
 use middle::def::{DefStatic, DefConst, DefAssociatedConst, DefMap};
 
-use syntax::ast;
-use syntax::{ast_util, ast_map};
+use syntax::{ast, ast_util};
 use syntax::codemap::Span;
 use syntax::visit::Visitor;
 use syntax::visit;

src/librustc/middle/const_eval.rs

@@ -15,6 +15,8 @@ pub use self::const_val::*;
 
 use self::ErrKind::*;
 
+use ast_map;
+use ast_map::blocks::FnLikeNode;
 use metadata::csearch;
 use middle::{astencode, def, infer, subst, traits};
 use middle::pat_util::def_to_path;
@@ -24,13 +26,12 @@ use util::num::ToPrimitive;
 use util::ppaux::Repr;
 
 use syntax::ast::{self, Expr};
-use syntax::ast_map::blocks::FnLikeNode;
 use syntax::ast_util;
 use syntax::codemap::Span;
 use syntax::feature_gate;
 use syntax::parse::token::InternedString;
 use syntax::ptr::P;
-use syntax::{ast_map, codemap, visit};
+use syntax::{codemap, visit};
 
 use std::borrow::{Cow, IntoCow};
 use std::num::wrapping::OverflowingOps;