upgrade to rustc-ap* v642

Cargo.toml

@@ -37,9 +37,33 @@ version = "0.1"
 optional = true
 path = "metadata"
 
+[dependencies.rustc_ast_pretty]
+package = "rustc-ap-rustc_ast_pretty"
+version = "642.0.0"
+
+[dependencies.rustc_data_structures]
+package = "rustc-ap-rustc_data_structures"
+version = "642.0.0"
+
+[dependencies.rustc_errors]
+package = "rustc-ap-rustc_errors"
+version = "642.0.0"
+
+[dependencies.rustc_parse]
+package = "rustc-ap-rustc_parse"
+version = "642.0.0"
+
+[dependencies.rustc_session]
+package = "rustc-ap-rustc_session"
+version = "642.0.0"
+
+[dependencies.rustc_span]
+package = "rustc-ap-rustc_span"
+version = "642.0.0"
+
 [dependencies.syntax]
 package = "rustc-ap-syntax"
-version = "610.0.0"
+version = "642.0.0"
 
 [dev-dependencies.racer-testutils]
 version = "0.1"

src/racer/ast.rs

@@ -9,18 +9,25 @@ use crate::typeinf;
 use std::path::Path;
 use std::rc::Rc;
 
+use rustc_data_structures::sync::Lrc;
+use rustc_errors::emitter::Emitter;
+use rustc_errors::{Diagnostic, Handler};
+use rustc_parse::new_parser_from_source_str;
+use rustc_parse::parser::Parser;
+use rustc_session::parse::ParseSess;
+use rustc_span::edition::Edition;
+use rustc_span::Span;
+use rustc_span::source_map::{self, FileName, SourceMap};
 use syntax::ast::{self, ExprKind, FunctionRetTy, ItemKind, PatKind, UseTree, UseTreeKind};
-use syntax::edition::Edition;
-use syntax::errors::{emitter::Emitter, Diagnostic, Handler};
-use syntax::parse::parser::Parser;
-use syntax::parse::{self, ParseSess};
-use syntax::source_map::{self, FileName, SourceMap, Span};
 use syntax::{self, visit};
 
 struct DummyEmitter;
 
 impl Emitter for DummyEmitter {
     fn emit_diagnostic(&mut self, _db: &Diagnostic) {}
+    fn source_map(&self) -> Option<&Lrc<SourceMap>> {
+        None
+    }
     fn should_show_explain(&self) -> bool {
         false
     }
@@ -29,7 +36,7 @@ impl Emitter for DummyEmitter {
 /// construct parser from string
 // From syntax/util/parser_testing.rs
 pub fn string_to_parser(ps: &ParseSess, source_str: String) -> Parser<'_> {
-    parse::new_parser_from_source_str(ps, FileName::Custom("racer-file".to_owned()), source_str)
+    new_parser_from_source_str(ps, FileName::Custom("racer-file".to_owned()), source_str)
 }
 
 /// Get parser from string s and then apply closure f to it
@@ -217,11 +224,14 @@ pub struct FnArgVisitor {
 impl<'ast> visit::Visitor<'ast> for FnArgVisitor {
     fn visit_fn(
         &mut self,
-        _fk: visit::FnKind<'_>,
-        fd: &ast::FnDecl,
+        fk: visit::FnKind<'_>,
         _: source_map::Span,
         _: ast::NodeId,
     ) {
+        let fd = match fk {
+            visit::FnKind::Fn(_, _, ref fn_sig, _, _) => &*fn_sig.decl,
+            visit::FnKind::Closure(ref fn_decl, _) => fn_decl,
+        };
         debug!("[FnArgVisitor::visit_fn] inputs: {:?}", fd.inputs);
         self.idents = fd
             .inputs
@@ -495,7 +505,7 @@ impl<'c, 's, 'ast> visit::Visitor<'ast> for ExprTypeVisitor<'c, 's> {
         );
         //walk_expr(self, ex, e)
         match expr.kind {
-            ExprKind::Unary(_, ref expr) | ExprKind::AddrOf(_, ref expr) => {
+            ExprKind::Unary(_, ref expr) | ExprKind::AddrOf(_, _, ref expr) => {
                 self.visit_expr(expr);
             }
             ExprKind::Path(_, ref path) => {
@@ -924,13 +934,13 @@ impl<'p> ImplVisitor<'p> {
 
 impl<'ast, 'p> visit::Visitor<'ast> for ImplVisitor<'p> {
     fn visit_item(&mut self, item: &ast::Item) {
-        if let ItemKind::Impl(_, _, _, ref generics, ref otrait, ref self_typ, _) = item.kind {
+        if let ItemKind::Impl { ref generics, ref of_trait, ref self_ty, .. } = item.kind {
             let impl_start = self.offset + get_span_start(item.span).into();
             self.result = ImplHeader::new(
                 generics,
                 self.filepath,
-                otrait,
-                self_typ,
+                of_trait,
+                self_ty,
                 self.offset,
                 self.local,
                 impl_start,
@@ -1015,7 +1025,7 @@ impl<'ast> visit::Visitor<'ast> for StaticVisitor {
         match i.kind {
             ItemKind::Const(ref ty, ref _expr) => self.ty = Ty::from_ast(ty, &self.scope),
             ItemKind::Static(ref ty, m, ref _expr) => {
-                self.is_mutable = m == ast::Mutability::Mutable;
+                self.is_mutable = m == ast::Mutability::Mut;
                 self.ty = Ty::from_ast(ty, &self.scope);
             }
             _ => {}
@@ -1229,10 +1239,13 @@ impl<'ast> visit::Visitor<'ast> for FnOutputVisitor {
     fn visit_fn(
         &mut self,
         kind: visit::FnKind<'_>,
-        fd: &ast::FnDecl,
         _: source_map::Span,
         _: ast::NodeId,
     ) {
+        let fd = match kind {
+            visit::FnKind::Fn(_, _, ref fn_sig, _, _) => &*fn_sig.decl,
+            visit::FnKind::Closure(ref fn_decl, _) => fn_decl,
+        };
         self.is_async = kind
             .header()
             .map(|header| header.asyncness.node.is_async())

src/racer/ast_types.rs

@@ -15,10 +15,10 @@ use syntax::ast::{
     self, GenericBound, GenericBounds, GenericParamKind, LitKind, PatKind, TraitRef, TyKind,
     WherePredicate,
 };
+use rustc_span::source_map;
+use rustc_ast_pretty::pprust;
 // we can only re-export types without thread-local interned string
 pub use syntax::ast::{BindingMode, Mutability};
-use syntax::print::pprust;
-use syntax::source_map;
 
 /// The leaf of a `use` statement.
 #[derive(Clone, Debug)]
@@ -102,7 +102,7 @@ impl Ty {
         let mut ty = self;
         // TODO: it's incorrect
         for _ in 0..count {
-            ty = Ty::RefPtr(Box::new(ty), Mutability::Immutable);
+            ty = Ty::RefPtr(Box::new(ty), Mutability::Not);
         }
         ty
     }
@@ -159,11 +159,11 @@ impl Ty {
             LitKind::Byte(_) => make_match(PrimKind::U8),
             LitKind::Char(_) => make_match(PrimKind::Char),
             LitKind::Int(_, int_ty) => make_match(PrimKind::from_litint(int_ty)),
-            LitKind::Float(_, float_ty) => match float_ty {
+            LitKind::Float(_, ast::LitFloatType::Unsuffixed) => make_match(PrimKind::F32),
+            LitKind::Float(_, ast::LitFloatType::Suffixed(float_ty)) => match float_ty {
                 ast::FloatTy::F32 => make_match(PrimKind::F32),
                 ast::FloatTy::F64 => make_match(PrimKind::F64),
             },
-            LitKind::FloatUnsuffixed(_) => make_match(PrimKind::F32),
             LitKind::Bool(_) => make_match(PrimKind::Bool),
             LitKind::Err(_) => None,
         }
@@ -232,12 +232,12 @@ impl fmt::Display for Ty {
                 write!(f, "]")
             }
             Ty::RefPtr(ref ty, mutab) => match mutab {
-                Mutability::Immutable => write!(f, "&{}", ty),
-                Mutability::Mutable => write!(f, "&mut {}", ty),
+                Mutability::Not => write!(f, "&{}", ty),
+                Mutability::Mut => write!(f, "&mut {}", ty),
             },
             Ty::Ptr(ref ty, mutab) => match mutab {
-                Mutability::Immutable => write!(f, "*const {}", ty),
-                Mutability::Mutable => write!(f, "*mut {}", ty),
+                Mutability::Not => write!(f, "*const {}", ty),
+                Mutability::Mut => write!(f, "*mut {}", ty),
             },
             Ty::TraitObject(ref bounds) => {
                 write!(f, "<")?;
@@ -449,7 +449,7 @@ impl Path {
                 }
                 // TODO: support inputs in GenericArgs::Parenthesized (A path like `Foo(A,B) -> C`)
                 if let ast::GenericArgs::Parenthesized(ref paren_args) = **params {
-                    if let Some(ref ty) = paren_args.output {
+                    if let ast::FunctionRetTy::Ty(ref ty) = paren_args.output {
                         output = Ty::from_ast(&*ty, scope);
                     }
                 }
@@ -867,7 +867,7 @@ impl GenericsArgs {
                 WherePredicate::BoundPredicate(bound) => match bound.bounded_ty.kind {
                     TyKind::Path(ref _qself, ref path) => {
                         if let Some(seg) = path.segments.get(0) {
-                            let name = seg.ident.name.as_str();
+                            let name = pprust::path_segment_to_string(&seg);
                             let bound =
                                 TraitBounds::from_generic_bounds(&bound.bounds, &filepath, offset);
                             if let Some(tp) = args.iter_mut().find(|tp| tp.name == name) {

src/racer/core.rs

@@ -15,7 +15,7 @@ use std::ops::{Deref, Range};
 use std::rc::Rc;
 use std::{fmt, vec};
 use std::{path, str};
-use syntax::source_map;
+use rustc_span::source_map;
 
 use crate::ast;
 use crate::fileres;

src/racer/snippets.rs

@@ -2,7 +2,7 @@ use crate::ast::with_error_checking_parse;
 use crate::core::{Match, Session};
 use crate::typeinf::get_function_declaration;
 
-use syntax::ast::ImplItemKind;
+use syntax::ast::AssocItemKind;
 
 /// Returns completion snippets usable by some editors
 ///
@@ -58,7 +58,7 @@ impl MethodInfo {
         with_error_checking_parse(decorated, |p| {
             let mut at_end = false;
             if let Ok(method) = p.parse_impl_item(&mut at_end) {
-                if let ImplItemKind::Method(ref msig, _) = method.kind {
+                if let AssocItemKind::Fn(ref msig, _) = method.kind {
                     let decl = &msig.decl;
                     return Some(MethodInfo {
                         // ident.as_str calls Ident.name.as_str