From 1b8ca54002cec4affe363584ca0946568beeabf0 Mon Sep 17 00:00:00 2001
From: David Tolnay <dtolnay@gmail.com>
Date: Thu, 16 Jun 2022 17:00:29 -0700
Subject: [PATCH] Add pp-exact test involving `where T:`

Currently fails.

    ---- [pretty] src/test/pretty/where-clauses.rs stdout ----

    error: pretty-printed source does not match expected source
    expected:
    ------------------------------------------
    // pp-exact

    fn f<'a, 'b, T>(t: T) -> isize where T: 'a, 'a: 'b, T: Eq { 0 }

    // This is legal syntax, sometimes generated by macros. `where T: $($bound+)*`
    fn zero_bounds<'a, T>() where 'a:, T: {}

    fn main() {}

    ------------------------------------------
    actual:
    ------------------------------------------
    // pp-exact

    fn f<'a, 'b, T>(t: T) -> isize where T: 'a, 'a: 'b, T: Eq { 0 }

    // This is legal syntax, sometimes generated by macros. `where T: $($bound+)*`
    fn zero_bounds<'a, T>() where 'a, T {}

    fn main() {}

    ------------------------------------------
    diff:
    ------------------------------------------
    3	fn f<'a, 'b, T>(t: T) -> isize where T: 'a, 'a: 'b, T: Eq { 0 }
    4
    5	// This is legal syntax, sometimes generated by macros. `where T: $($bound+)*`
    -	fn zero_bounds<'a, T>() where 'a:, T: {}
    +	fn zero_bounds<'a, T>() where 'a, T {}
    7
    8	fn main() {}
    9
---
 src/test/pretty/where-clauses.rs | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/test/pretty/where-clauses.rs b/src/test/pretty/where-clauses.rs
index 5614a81b0eb41..4183799457b7f 100644
--- a/src/test/pretty/where-clauses.rs
+++ b/src/test/pretty/where-clauses.rs
@@ -2,4 +2,7 @@
 
 fn f<'a, 'b, T>(t: T) -> isize where T: 'a, 'a: 'b, T: Eq { 0 }
 
+// This is legal syntax, sometimes generated by macros. `where T: $($bound+)*`
+fn zero_bounds<'a, T>() where 'a:, T: {}
+
 fn main() {}