Rollup merge of rust-lang#35491 - sanxiyn:pub-restricted-span, r=nikomatsakis

Correct span for pub_restricted field

Fix rust-lang#35435.

Author: Manishearth

src/libsyntax/parse/parser.rs

@@ -3788,19 +3788,18 @@ impl<'a> Parser<'a> {
     }
 
     /// Parse a structure field
-    fn parse_name_and_ty(&mut self, pr: Visibility,
-                         attrs: Vec<Attribute> ) -> PResult<'a, StructField> {
-        let lo = match pr {
-            Visibility::Inherited => self.span.lo,
-            _ => self.last_span.lo,
-        };
+    fn parse_name_and_ty(&mut self,
+                         lo: BytePos,
+                         vis: Visibility,
+                         attrs: Vec<Attribute>)
+                         -> PResult<'a, StructField> {
         let name = self.parse_ident()?;
         self.expect(&token::Colon)?;
         let ty = self.parse_ty_sum()?;
         Ok(StructField {
             span: mk_sp(lo, self.last_span.hi),
             ident: Some(name),
-            vis: pr,
+            vis: vis,
             id: ast::DUMMY_NODE_ID,
             ty: ty,
             attrs: attrs,
@@ -5120,10 +5119,11 @@ impl<'a> Parser<'a> {
 
     /// Parse a structure field declaration
     pub fn parse_single_struct_field(&mut self,
+                                     lo: BytePos,
                                      vis: Visibility,
                                      attrs: Vec<Attribute> )
                                      -> PResult<'a, StructField> {
-        let a_var = self.parse_name_and_ty(vis, attrs)?;
+        let a_var = self.parse_name_and_ty(lo, vis, attrs)?;
         match self.token {
             token::Comma => {
                 self.bump();
@@ -5144,8 +5144,9 @@ impl<'a> Parser<'a> {
     /// Parse an element of a struct definition
     fn parse_struct_decl_field(&mut self) -> PResult<'a, StructField> {
         let attrs = self.parse_outer_attributes()?;
+        let lo = self.span.lo;
         let vis = self.parse_visibility(true)?;
-        self.parse_single_struct_field(vis, attrs)
+        self.parse_single_struct_field(lo, vis, attrs)
     }
 
     // If `allow_path` is false, just parse the `pub` in `pub(path)` (but still parse `pub(crate)`)

src/test/compile-fail/pub-struct-field-span-26083.rs renamed to src/test/ui/span/pub-struct-field.rs

@@ -1,4 +1,4 @@
-// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
+// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
 // file at the top-level directory of this distribution and at
 // http://rust-lang.org/COPYRIGHT.
 //
@@ -8,23 +8,15 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-// Regression test for issue #26083
-// Test that span for public struct fields start at `pub` instead of the identifier
+// Regression test for issue #26083 and #35435
+// Test that span for public struct fields start at `pub`
 
-struct Foo {
-    pub bar: u8,
+#![feature(pub_restricted)]
 
-    pub
-    //~^ error: field `bar` is already declared [E0124]
+struct Foo {
     bar: u8,
-
-    pub bar:
-    //~^ error: field `bar` is already declared [E0124]
-    u8,
-
-    bar:
-    //~^ error: field `bar` is already declared [E0124]
-    u8,
+    pub bar: u8,
+    pub(crate) bar: u8,
 }
 
-fn main() { }
+fn main() {}

src/test/ui/span/pub-struct-field.stderr

@@ -0,0 +1,19 @@
+error[E0124]: field `bar` is already declared
+  --> $DIR/pub-struct-field.rs:18:5
+   |
+17 |     bar: u8,
+   |     ------- `bar` first declared here
+18 |     pub bar: u8,
+   |     ^^^^^^^^^^^ field already declared
+
+error[E0124]: field `bar` is already declared
+  --> $DIR/pub-struct-field.rs:19:5
+   |
+17 |     bar: u8,
+   |     ------- `bar` first declared here
+18 |     pub bar: u8,
+19 |     pub(crate) bar: u8,
+   |     ^^^^^^^^^^^^^^^^^^ field already declared
+
+error: aborting due to 2 previous errors
+