extract error_unexpected_after_dot and de-fatalize

Author: Centril

src/librustc_parse/parser/expr.rs

@@ -715,11 +715,7 @@ impl<'a> Parser<'a> {
                             err?
                         }
                     }
-                    _ => {
-                        // FIXME Could factor this out into non_fatal_unexpected or something.
-                        let actual = self.this_token_to_string();
-                        self.span_err(self.token.span, &format!("unexpected token: `{}`", actual));
-                    }
+                    _ => self.error_unexpected_after_dot(),
                 }
                 continue;
             }
@@ -735,6 +731,12 @@ impl<'a> Parser<'a> {
         return Ok(e);
     }
 
+    fn error_unexpected_after_dot(&self) {
+        // FIXME Could factor this out into non_fatal_unexpected or something.
+        let actual = self.this_token_to_string();
+        self.struct_span_err(self.token.span, &format!("unexpected token: `{}`", actual)).emit();
+    }
+
     fn recover_field_access_by_float_lit(
         &mut self,
         lo: Span,

src/test/ui/parser/attr-stmt-expr-attr-bad-2.rs

@@ -101,6 +101,13 @@ fn main() {}
 //~^ ERROR `X..=` range patterns are not supported
 //~| ERROR expected one of `=>`, `if`, or `|`, found `#`
 
+#[cfg(FALSE)] fn e() { let _ = x.#![attr]foo(); }
+//~^ ERROR unexpected token: `#`
+//~| ERROR expected one of `.`
+#[cfg(FALSE)] fn e() { let _ = x.#[attr]foo(); }
+//~^ ERROR unexpected token: `#`
+//~| ERROR expected one of `.`
+
 // make sure we don't catch this bug again...
 #[cfg(FALSE)] fn e() { { fn foo() { #[attr]; } } }
 //~^ ERROR expected statement after outer attribute

src/test/ui/parser/attr-stmt-expr-attr-bad-2.stderr

@@ -380,11 +380,35 @@ error: expected one of `=>`, `if`, or `|`, found `#`
 LL | #[cfg(FALSE)] fn e() { match 0 { 0..=#[attr] FOO => () } }
    |                                      ^ expected one of `=>`, `if`, or `|`
 
+error: unexpected token: `#`
+  --> $DIR/attr-stmt-expr-attr-bad.rs:104:34
+   |
+LL | #[cfg(FALSE)] fn e() { let _ = x.#![attr]foo(); }
+   |                                  ^
+
+error: expected one of `.`, `;`, `?`, or an operator, found `#`
+  --> $DIR/attr-stmt-expr-attr-bad.rs:104:34
+   |
+LL | #[cfg(FALSE)] fn e() { let _ = x.#![attr]foo(); }
+   |                                  ^ expected one of `.`, `;`, `?`, or an operator
+
+error: unexpected token: `#`
+  --> $DIR/attr-stmt-expr-attr-bad.rs:106:34
+   |
+LL | #[cfg(FALSE)] fn e() { let _ = x.#[attr]foo(); }
+   |                                  ^
+
+error: expected one of `.`, `;`, `?`, or an operator, found `#`
+  --> $DIR/attr-stmt-expr-attr-bad.rs:106:34
+   |
+LL | #[cfg(FALSE)] fn e() { let _ = x.#[attr]foo(); }
+   |                                  ^ expected one of `.`, `;`, `?`, or an operator
+
 error: expected statement after outer attribute
-  --> $DIR/attr-stmt-expr-attr-bad.rs:105:44
+  --> $DIR/attr-stmt-expr-attr-bad.rs:110:44
    |
 LL | #[cfg(FALSE)] fn e() { { fn foo() { #[attr]; } } }
    |                                            ^
 
-error: aborting due to 52 previous errors
+error: aborting due to 56 previous errors