020da5bffb
This PR fixes an issue when including a hard line break in a `Format` that caused subsequent (ordinary) line breaks to be erroneously flattened to spaces. This issue is especially important for displaying notes and hints in error messages, as these components could appear garbled due to improper line-break rendering.
38 lines
834 B
Text
38 lines
834 B
Text
/-!
|
|
Checks that `simp` removes the `binderNameHint` in the pre-phase, and does not spend time looking
|
|
at its arguments.
|
|
|
|
The following traces should show no rewriting of `x` or `y`, only `z`.
|
|
-/
|
|
|
|
def x : Nat := 0
|
|
def y : Nat := 0
|
|
def z : Nat := 0
|
|
|
|
set_option trace.Meta.Tactic.simp.rewrite true
|
|
|
|
/--
|
|
trace: [Meta.Tactic.simp.rewrite] ↓ binderNameHint.eq_1:1000:
|
|
binderNameHint x y z
|
|
==>
|
|
z
|
|
[Meta.Tactic.simp.rewrite] unfold z, z ==> 0
|
|
[Meta.Tactic.simp.rewrite] eq_self:1000:
|
|
0 = 0
|
|
==>
|
|
True
|
|
-/
|
|
#guard_msgs in
|
|
example : binderNameHint x y z = 0 := by
|
|
simp [x, y, z]
|
|
|
|
/--
|
|
trace: [Meta.Tactic.simp.rewrite] ↓ binderNameHint.eq_1:1000:
|
|
binderNameHint x y z
|
|
==>
|
|
z
|
|
[Meta.Tactic.simp.rewrite] unfold z, z ==> 0
|
|
-/
|
|
#guard_msgs in
|
|
example : binderNameHint x y z = 0 := by
|
|
dsimp [x, y, z]
|