rustc, rustc_passes: don't depend on syntax_expand.

This is done by moving some data definitions to syntax::expand.

Cargo.lock

@@ -3135,7 +3135,6 @@ dependencies = [
  "serialize",
  "smallvec",
  "syntax",
- "syntax_expand",
  "syntax_pos",
 ]
 
@@ -3451,7 +3450,6 @@ dependencies = [
  "rustc_target",
  "serialize",
  "syntax",
- "syntax_expand",
  "syntax_pos",
  "tempfile",
 ]
@@ -3707,7 +3705,6 @@ dependencies = [
  "rustc_index",
  "rustc_target",
  "syntax",
- "syntax_expand",
  "syntax_pos",
 ]
 

src/librustc/Cargo.toml

@@ -29,7 +29,6 @@ rustc_index = { path = "../librustc_index" }
 errors = { path = "../librustc_errors", package = "rustc_errors" }
 rustc_serialize = { path = "../libserialize", package = "serialize" }
 syntax = { path = "../libsyntax" }
-syntax_expand = { path = "../libsyntax_expand" }
 syntax_pos = { path = "../libsyntax_pos" }
 backtrace = "0.3.3"
 parking_lot = "0.9"

src/librustc/hir/def.rs

@@ -6,8 +6,8 @@ use crate::ty;
 use crate::util::nodemap::DefIdMap;
 
 use syntax::ast;
-use syntax_expand::base::MacroKind;
 use syntax::ast::NodeId;
+use syntax_pos::hygiene::MacroKind;
 use syntax_pos::Span;
 use rustc_macros::HashStable;
 

src/librustc/hir/lowering.rs

@@ -64,7 +64,7 @@ use syntax::ast;
 use syntax::ptr::P as AstP;
 use syntax::ast::*;
 use syntax::errors;
-use syntax_expand::base::SpecialDerives;
+use syntax::expand::SpecialDerives;
 use syntax::print::pprust;
 use syntax::parse::token::{self, Nonterminal, Token};
 use syntax::tokenstream::{TokenStream, TokenTree};

src/librustc/hir/lowering/item.rs

@@ -18,7 +18,7 @@ use smallvec::SmallVec;
 use syntax::attr;
 use syntax::ast::*;
 use syntax::visit::{self, Visitor};
-use syntax_expand::base::SpecialDerives;
+use syntax::expand::SpecialDerives;
 use syntax::source_map::{respan, DesugaringKind, Spanned};
 use syntax::symbol::{kw, sym};
 use syntax_pos::Span;

src/librustc/hir/map/def_collector.rs

@@ -2,10 +2,10 @@ use crate::hir::map::definitions::*;
 use crate::hir::def_id::DefIndex;
 
 use syntax::ast::*;
-use syntax_expand::hygiene::ExpnId;
 use syntax::visit;
 use syntax::symbol::{kw, sym};
 use syntax::parse::token::{self, Token};
+use syntax_pos::hygiene::ExpnId;
 use syntax_pos::Span;
 
 /// Creates `DefId`s for nodes in the AST.

src/librustc/hir/map/definitions.rs

@@ -17,8 +17,8 @@ use std::borrow::Borrow;
 use std::fmt::Write;
 use std::hash::Hash;
 use syntax::ast;
-use syntax_expand::hygiene::ExpnId;
-use syntax::symbol::{Symbol, sym};
+use syntax_pos::symbol::{Symbol, sym};
+use syntax_pos::hygiene::ExpnId;
 use syntax_pos::{Span, DUMMY_SP};
 
 /// The `DefPathTable` maps `DefIndex`es to `DefKey`s and vice versa.

src/librustc/hir/map/mod.rs

@@ -20,7 +20,7 @@ use rustc_data_structures::svh::Svh;
 use rustc_index::vec::IndexVec;
 use syntax::ast::{self, Name, NodeId};
 use syntax::source_map::Spanned;
-use syntax_expand::base::MacroKind;
+use syntax_pos::hygiene::MacroKind;
 use syntax_pos::{Span, DUMMY_SP};
 
 pub mod blocks;

src/librustc/ich/hcx.rs

@@ -13,11 +13,10 @@ use std::cell::RefCell;
 
 use syntax::ast;
 use syntax::source_map::SourceMap;
-use syntax_expand::hygiene::SyntaxContext;
 use syntax::symbol::Symbol;
 use syntax::tokenstream::DelimSpan;
 use syntax_pos::{Span, DUMMY_SP};
-use syntax_pos::hygiene;
+use syntax_pos::hygiene::{self, SyntaxContext};
 
 use rustc_data_structures::stable_hasher::{
  HashStable, StableHasher, ToStableHashKey,

src/librustc/ich/impls_syntax.rs

@@ -60,7 +60,7 @@ impl_stable_hash_for!(enum ::syntax::ast::AsmDialect {
  Intel
 });
 
-impl_stable_hash_for!(enum ::syntax_expand::base::MacroKind {
+impl_stable_hash_for!(enum ::syntax_pos::hygiene::MacroKind {
  Bang,
  Attr,
  Derive,

src/librustc/lint/mod.rs

@@ -39,8 +39,8 @@ use syntax::ast;
 use syntax::source_map::{MultiSpan, ExpnKind, DesugaringKind};
 use syntax::early_buffered_lints::BufferedEarlyLintId;
 use syntax::edition::Edition;
-use syntax_expand::base::MacroKind;
 use syntax::symbol::{Symbol, sym};
+use syntax_pos::hygiene::MacroKind;
 use syntax_pos::Span;
 
 pub use crate::lint::context::{LateContext, EarlyContext, LintContext, LintStore,

src/librustc/session/mod.rs

@@ -24,7 +24,7 @@ use errors::emitter::HumanReadableErrorType;
 use errors::annotate_snippet_emitter_writer::{AnnotateSnippetEmitterWriter};
 use syntax::ast::{self, NodeId};
 use syntax::edition::Edition;
-use syntax_expand::allocator::AllocatorKind;
+use syntax::expand::allocator::AllocatorKind;
 use syntax::feature_gate::{self, AttributeType};
 use syntax::json::JsonEmitter;
 use syntax::source_map;

src/librustc/ty/mod.rs

@@ -46,8 +46,8 @@ use std::{mem, ptr};
 use std::ops::Range;
 use syntax::ast::{self, Name, Ident, NodeId};
 use syntax::attr;
-use syntax_expand::hygiene::ExpnId;
-use syntax::symbol::{kw, sym, Symbol};
+use syntax_pos::symbol::{kw, sym, Symbol};
+use syntax_pos::hygiene::ExpnId;
 use syntax_pos::Span;
 
 use smallvec;

src/librustc_codegen_llvm/allocator.rs

@@ -3,7 +3,7 @@ use std::ffi::CString;
 use crate::attributes;
 use libc::c_uint;
 use rustc::ty::TyCtxt;
-use syntax_expand::allocator::{AllocatorKind, AllocatorTy, ALLOCATOR_METHODS};
+use syntax::expand::allocator::{AllocatorKind, AllocatorTy, ALLOCATOR_METHODS};
 
 use crate::ModuleLlvm;
 use crate::llvm::{self, False, True};

src/librustc_codegen_llvm/lib.rs

@@ -39,7 +39,6 @@ extern crate rustc_driver as _;
 
 #[macro_use] extern crate log;
 extern crate syntax;
-extern crate syntax_expand;
 extern crate syntax_pos;
 extern crate rustc_errors as errors;
 
@@ -49,7 +48,7 @@ use rustc_codegen_ssa::back::lto::{SerializedModule, LtoModuleCodegen, ThinModul
 use rustc_codegen_ssa::CompiledModule;
 use errors::{FatalError, Handler};
 use rustc::dep_graph::WorkProduct;
-use syntax_expand::allocator::AllocatorKind;
+use syntax::expand::allocator::AllocatorKind;
 pub use llvm_util::target_features;
 use std::any::Any;
 use std::sync::Arc;

src/librustc_codegen_ssa/Cargo.toml

@@ -21,7 +21,6 @@ tempfile = "3.1"
 
 rustc_serialize = { path = "../libserialize", package = "serialize" }
 syntax = { path = "../libsyntax" }
-syntax_expand = { path = "../libsyntax_expand" }
 syntax_pos = { path = "../libsyntax_pos" }
 rustc = { path = "../librustc" }
 rustc_apfloat = { path = "../librustc_apfloat" }

src/librustc_codegen_ssa/back/symbol_export.rs

@@ -14,7 +14,7 @@ use rustc::ty::query::Providers;
 use rustc::ty::subst::SubstsRef;
 use rustc::util::nodemap::{FxHashMap, DefIdMap};
 use rustc_index::vec::IndexVec;
-use syntax_expand::allocator::ALLOCATOR_METHODS;
+use syntax::expand::allocator::ALLOCATOR_METHODS;
 
 pub type ExportedSymbols = FxHashMap<
  CrateNum,

src/librustc_codegen_ssa/back/write.rs

@@ -27,7 +27,7 @@ use rustc_errors::{Handler, Level, FatalError, DiagnosticId, SourceMapperDyn};
 use rustc_errors::emitter::{Emitter};
 use rustc_target::spec::MergeFunctions;
 use syntax::attr;
-use syntax_expand::hygiene::ExpnId;
+use syntax_pos::hygiene::ExpnId;
 use syntax_pos::symbol::{Symbol, sym};
 use jobserver::{Client, Acquired};
 

src/librustc_codegen_ssa/traits/backend.rs

@@ -9,7 +9,7 @@ use rustc::ty::TyCtxt;
 use rustc_codegen_utils::codegen_backend::CodegenBackend;
 use std::sync::Arc;
 use std::sync::mpsc;
-use syntax_expand::allocator::AllocatorKind;
+use syntax::expand::allocator::AllocatorKind;
 use syntax_pos::symbol::Symbol;
 
 pub trait BackendTypes {

src/librustc_interface/passes.rs

@@ -502,7 +502,7 @@ pub fn lower_to_hir(
 
  // Discard hygiene data, which isn't required after lowering to HIR.
  if !sess.opts.debugging_opts.keep_hygiene_data {
- syntax_expand::hygiene::clear_syntax_context_map();
+ syntax_pos::hygiene::clear_syntax_context_map();
  }
 
  Ok(hir_forest)

src/librustc_metadata/creader.rs

@@ -25,7 +25,7 @@ use std::{cmp, fs};
 
 use syntax::ast;
 use syntax::attr;
-use syntax_expand::allocator::{global_allocator_spans, AllocatorKind};
+use syntax::expand::allocator::{global_allocator_spans, AllocatorKind};
 use syntax::symbol::{Symbol, sym};
 use syntax::span_fatal;
 use syntax_pos::{Span, DUMMY_SP};

src/librustc_metadata/decoder.rs

@@ -33,12 +33,12 @@ use rustc_serialize::{Decodable, Decoder, Encodable, SpecializedDecoder, opaque}
 use syntax::attr;
 use syntax::ast::{self, Ident};
 use syntax::source_map::{self, respan, Spanned};
-use syntax::symbol::{Symbol, sym};
-use syntax_expand::base::{MacroKind, SyntaxExtensionKind, SyntaxExtension};
-use syntax_pos::{self, Span, BytePos, Pos, DUMMY_SP};
+use syntax_expand::base::{SyntaxExtensionKind, SyntaxExtension};
+use syntax_expand::proc_macro::{AttrProcMacro, ProcMacroDerive, BangProcMacro};
+use syntax_pos::{self, Span, BytePos, Pos, DUMMY_SP, hygiene::MacroKind};
+use syntax_pos::symbol::{Symbol, sym};
 use log::debug;
 use proc_macro::bridge::client::ProcMacro;
-use syntax_expand::proc_macro::{AttrProcMacro, ProcMacroDerive, BangProcMacro};
 
 crate struct DecodeContext<'a, 'tcx> {
  opaque: opaque::Decoder<'a>,

src/librustc_metadata/encoder.rs

@@ -32,7 +32,7 @@ use std::path::Path;
 use std::u32;
 use syntax::ast;
 use syntax::attr;
-use syntax_expand::proc_macro::is_proc_macro_attr;
+use syntax::expand::is_proc_macro_attr;
 use syntax::source_map::Spanned;
 use syntax::symbol::{kw, sym, Ident, Symbol};
 use syntax_pos::{self, FileName, SourceFile, Span};

src/librustc_passes/Cargo.toml

@@ -13,7 +13,6 @@ log = "0.4"
 rustc = { path = "../librustc" }
 rustc_data_structures = { path = "../librustc_data_structures" }
 syntax = { path = "../libsyntax" }
-syntax_expand = { path = "../libsyntax_expand" }
 syntax_pos = { path = "../libsyntax_pos" }
 errors = { path = "../librustc_errors", package = "rustc_errors" }
 rustc_target = { path = "../librustc_target" }

src/librustc_passes/ast_validation.rs

@@ -14,7 +14,7 @@ use rustc::session::Session;
 use rustc_data_structures::fx::FxHashMap;
 use syntax::ast::*;
 use syntax::attr;
-use syntax_expand::proc_macro::is_proc_macro_attr;
+use syntax::expand::is_proc_macro_attr;
 use syntax::feature_gate::is_builtin_attr;
 use syntax::source_map::Spanned;
 use syntax::symbol::{kw, sym};

src/librustc_resolve/build_reduced_graph.rs

@@ -32,17 +32,16 @@ use syntax::attr;
 
 use syntax::ast::{self, Block, ForeignItem, ForeignItemKind, Item, ItemKind, NodeId};
 use syntax::ast::{MetaItemKind, StmtKind, TraitItem, TraitItemKind};
-use syntax_expand::base::{MacroKind, SyntaxExtension};
-use syntax_expand::expand::AstFragment;
-use syntax_expand::hygiene::ExpnId;
 use syntax::feature_gate::is_builtin_attr;
 use syntax::parse::token::{self, Token};
 use syntax::print::pprust;
 use syntax::{span_err, struct_span_err};
 use syntax::source_map::{respan, Spanned};
 use syntax::symbol::{kw, sym};
 use syntax::visit::{self, Visitor};
-
+use syntax_expand::base::SyntaxExtension;
+use syntax_expand::expand::AstFragment;
+use syntax_pos::hygiene::{MacroKind, ExpnId};
 use syntax_pos::{Span, DUMMY_SP};
 
 use log::debug;

src/librustc_resolve/diagnostics.rs

@@ -10,12 +10,12 @@ use rustc::session::Session;
 use rustc::ty::{self, DefIdTree};
 use rustc::util::nodemap::FxHashSet;
 use syntax::ast::{self, Ident, Path};
-use syntax_expand::base::MacroKind;
 use syntax::feature_gate::BUILTIN_ATTRIBUTES;
 use syntax::source_map::SourceMap;
 use syntax::struct_span_err;
 use syntax::symbol::{Symbol, kw};
 use syntax::util::lev_distance::find_best_match_for_name;
+use syntax_pos::hygiene::MacroKind;
 use syntax_pos::{BytePos, Span, MultiSpan};
 
 use crate::resolve_imports::{ImportDirective, ImportDirectiveSubclass, ImportResolver};

src/librustc_resolve/late/diagnostics.rs

@@ -13,9 +13,9 @@ use rustc::hir::PrimTy;
 use rustc::session::config::nightly_options;
 use rustc::util::nodemap::FxHashSet;
 use syntax::ast::{self, Expr, ExprKind, Ident, NodeId, Path, Ty, TyKind};
-use syntax_expand::base::MacroKind;
 use syntax::symbol::kw;
 use syntax::util::lev_distance::find_best_match_for_name;
+use syntax_pos::hygiene::MacroKind;
 use syntax_pos::Span;
 
 type Res = def::Res<ast::NodeId>;

src/librustc_resolve/lib.rs

@@ -35,17 +35,18 @@ use rustc::span_bug;
 use rustc_metadata::creader::CrateLoader;
 use rustc_metadata::cstore::CStore;
 
-use syntax_expand::hygiene::{ExpnId, Transparency, SyntaxContext};
-use syntax_expand::base::{SyntaxExtension, MacroKind, SpecialDerives};
 use syntax::{struct_span_err, unwrap_or};
-use syntax::attr;
+use syntax::expand::SpecialDerives;
 use syntax::ast::{self, Name, NodeId, Ident, FloatTy, IntTy, UintTy};
-use syntax::ast::{ItemKind, Path, CRATE_NODE_ID, Crate};
+use syntax::ast::{CRATE_NODE_ID, Crate};
+use syntax::ast::{ItemKind, Path};
+use syntax::attr;
 use syntax::print::pprust;
 use syntax::symbol::{kw, sym};
 use syntax::source_map::Spanned;
 use syntax::visit::{self, Visitor};
-
+use syntax_expand::base::SyntaxExtension;
+use syntax_pos::hygiene::{MacroKind, ExpnId, Transparency, SyntaxContext};
 use syntax_pos::{Span, DUMMY_SP};
 use errors::{Applicability, DiagnosticBuilder};
 

src/librustc_resolve/macros.rs

@@ -14,20 +14,21 @@ use rustc::{ty, lint, span_bug};
 use syntax::ast::{self, NodeId, Ident};
 use syntax::attr::StabilityLevel;
 use syntax::edition::Edition;
-use syntax_expand::base::{self, InvocationRes, Indeterminate, SpecialDerives};
-use syntax_expand::base::{MacroKind, SyntaxExtension};
-use syntax_expand::expand::{AstFragment, AstFragmentKind, Invocation, InvocationKind};
-use syntax_expand::hygiene::{self, ExpnId, ExpnData, ExpnKind};
-use syntax_expand::compile_declarative_macro;
+use syntax::expand::SpecialDerives;
 use syntax::feature_gate::{emit_feature_err, is_builtin_attr_name};
 use syntax::feature_gate::GateIssue;
 use syntax::print::pprust;
 use syntax::symbol::{Symbol, kw, sym};
+use syntax_expand::base::{self, InvocationRes, Indeterminate};
+use syntax_expand::base::SyntaxExtension;
+use syntax_expand::expand::{AstFragment, AstFragmentKind, Invocation, InvocationKind};
+use syntax_expand::compile_declarative_macro;
+use syntax_pos::hygiene::{self, ExpnId, ExpnData, ExpnKind};
 use syntax_pos::{Span, DUMMY_SP};
 
 use std::{mem, ptr};
 use rustc_data_structures::sync::Lrc;
-use syntax_pos::hygiene::AstPass;
+use syntax_pos::hygiene::{MacroKind, AstPass};
 
 type Res = def::Res<NodeId>;
 

src/librustc_resolve/resolve_imports.rs

@@ -28,10 +28,10 @@ use rustc::util::nodemap::FxHashSet;
 use rustc::{bug, span_bug};
 
 use syntax::ast::{Ident, Name, NodeId, CRATE_NODE_ID};
-use syntax_expand::hygiene::ExpnId;
 use syntax::symbol::kw;
 use syntax::util::lev_distance::find_best_match_for_name;
 use syntax::{struct_span_err, unwrap_or};
+use syntax_pos::hygiene::ExpnId;
 use syntax_pos::{MultiSpan, Span};
 
 use log::*;

src/librustdoc/clean/inline.rs

@@ -3,8 +3,8 @@
 use std::iter::once;
 
 use syntax::ast;
-use syntax_expand::base::MacroKind;
 use syntax::symbol::sym;
+use syntax_pos::hygiene::MacroKind;
 use syntax_pos::Span;
 
 use rustc::hir;

src/librustdoc/clean/mod.rs

@@ -28,10 +28,10 @@ use rustc::ty::layout::VariantIdx;
 use rustc::util::nodemap::{FxHashMap, FxHashSet};
 use syntax::ast::{self, Attribute, AttrStyle, AttrItem, Ident};
 use syntax::attr;
-use syntax_expand::base::MacroKind;
 use syntax::parse::lexer::comments;
 use syntax::source_map::DUMMY_SP;
-use syntax::symbol::{Symbol, kw, sym};
+use syntax_pos::symbol::{Symbol, kw, sym};
+use syntax_pos::hygiene::MacroKind;
 use syntax_pos::{self, Pos, FileName};
 
 use std::collections::hash_map::Entry;