syntax: recover trailing `|` in or-patterns.

1 files changed, 25 insertions, 2 deletions

diff --git a/src/test/ui/or-patterns/remove-leading-vert.fixed b/src/test/ui/or-patterns/remove-leading-vert.fixed
index e96d76061ac..443ef398293 100644
--- a/src/test/ui/or-patterns/remove-leading-vert.fixed
+++ b/src/test/ui/or-patterns/remove-leading-vert.fixed
@@ -1,4 +1,4 @@
-// Test the suggestion to remove a leading `|`.
+// Test the suggestion to remove a leading, or trailing `|`.
 
 // run-rustfix
 
@@ -8,7 +8,7 @@
 fn main() {}
 
 #[cfg(FALSE)]
-fn leading_vert() {
+fn leading() {
     fn fun1(  A: E) {} //~ ERROR a leading `|` is not allowed in a parameter pattern
     fn fun2(  A: E) {} //~ ERROR a leading `|` is not allowed in a parameter pattern
     let (  A): E; //~ ERROR a leading `|` is only allowed in a top-level pattern
@@ -21,3 +21,26 @@ fn leading_vert() {
     let NS { f:  A }: NS; //~ ERROR a leading `|` is only allowed in a top-level pattern
     let NS { f:  A }: NS; //~ ERROR a leading `|` is only allowed in a top-level pattern
 }
+
+#[cfg(FALSE)]
+fn trailing() {
+    let ( A  ): E; //~ ERROR a trailing `|` is not allowed in an or-pattern
+    let (a ,): (E,); //~ ERROR a trailing `|` is not allowed in an or-pattern
+    let ( A | B  ): E; //~ ERROR a trailing `|` is not allowed in an or-pattern
+    let [ A | B  ]: [E; 1]; //~ ERROR a trailing `|` is not allowed in an or-pattern
+    let S { f: B  }; //~ ERROR a trailing `|` is not allowed in an or-pattern
+    let ( A | B  ): E; //~ ERROR unexpected token `||` after pattern
+    //~^ ERROR a trailing `|` is not allowed in an or-pattern
+    match A {
+        A  => {} //~ ERROR a trailing `|` is not allowed in an or-pattern
+        A  => {} //~ ERROR a trailing `|` is not allowed in an or-pattern
+        A | B  => {} //~ ERROR unexpected token `||` after pattern
+        //~^ ERROR a trailing `|` is not allowed in an or-pattern
+        | A | B  => {}
+        //~^ ERROR a trailing `|` is not allowed in an or-pattern
+    }
+
+    let a  : u8 = 0; //~ ERROR a trailing `|` is not allowed in an or-pattern
+    let a  = 0; //~ ERROR a trailing `|` is not allowed in an or-pattern
+    let a  ; //~ ERROR a trailing `|` is not allowed in an or-pattern
+}