0d5869bb71
This PR fixes an issue where adding a missing case name after the pipe in `induction` would not remove the now-obsolete error message. Fixes #10847
101 lines
1.9 KiB
Text
101 lines
1.9 KiB
Text
/-! Incremental reuse in combinator -/
|
||
|
||
def case (h : a ∨ b ∨ c) : True := by
|
||
cases h
|
||
case inr h =>
|
||
cases h
|
||
case inl =>
|
||
dbg_trace "c 0"
|
||
dbg_trace "c 1"
|
||
dbg_trace "c 2"
|
||
--^ sync
|
||
--^ insert: ".5"
|
||
|
||
/-!
|
||
`case` with multiple tags should *not* be accidentally incremental, leading to e.g. kernel errors.
|
||
-/
|
||
|
||
-- RESET
|
||
def case2 (h : a ∨ b ∨ c) : True := by
|
||
cases h
|
||
case inl | inr =>
|
||
skip
|
||
sorry
|
||
--^ sync
|
||
--^ insert: " "
|
||
--^ collectDiagnostics
|
||
|
||
-- RESET
|
||
def cdot (h : a ∨ b) : True := by
|
||
cases h
|
||
. dbg_trace "d 0"
|
||
dbg_trace "d 1"
|
||
dbg_trace "d 2"
|
||
--^ sync
|
||
--^ insert: ".5"
|
||
dbg_trace "d 3"
|
||
|
||
-- RESET
|
||
def have : True := by
|
||
dbg_trace "h 0"
|
||
have : True := by
|
||
dbg_trace "h 1"
|
||
dbg_trace "h 2"
|
||
--^ sync
|
||
--^ insert: ".5"
|
||
dbg_trace "h 3"
|
||
|
||
/-!
|
||
Updating the `have` header should update the unsolved goals position (and currently re-run the body)
|
||
-/
|
||
-- RESET
|
||
def spaceHave : True := by
|
||
have : True := by
|
||
--^ collectDiagnostics
|
||
--^ insert: " "
|
||
--^ collectDiagnostics
|
||
dbg_trace "sh"
|
||
|
||
-- RESET
|
||
def next : True := by
|
||
next =>
|
||
dbg_trace "n 0"
|
||
dbg_trace "n 1"
|
||
--^ sync
|
||
--^ insert: ".5"
|
||
|
||
-- RESET
|
||
def if : True := by
|
||
if h : True then
|
||
dbg_trace "i 0"
|
||
dbg_trace "i 1"
|
||
--^ sync
|
||
--^ insert: ".5"
|
||
else
|
||
skip
|
||
|
||
|
||
/-!
|
||
Removing an extraneous case should not stick around.
|
||
-/
|
||
-- RESET
|
||
example (n : Nat) : n = n := by
|
||
induction n with
|
||
| zero => simp
|
||
--v sync
|
||
--v delete: "| one => sorry"
|
||
| one => simp
|
||
| succ => simp
|
||
--^ collectDiagnostics
|
||
|
||
/-!
|
||
"Missing alternative name" should not stick around.
|
||
-/
|
||
-- RESET
|
||
example (n : Nat) : n = n := by
|
||
induction n with
|
||
| zero => simp
|
||
| -- insert here
|
||
--^ sync
|
||
--^ insert: "succ => sorry"
|
||
--^ collectDiagnostics
|