4d2f2d7cc5
Generalizes #3556 to not suppressing errors in tactic steps either when the parse error is in a later step, as otherwise changes to the end of a proof would affect (correctness or effectiveness of) incrementality of preceding steps. Fixes #4623, in combination with #4643
120 lines
3 KiB
Text
120 lines
3 KiB
Text
/-! Basic incremental reuse in top-level tactic block -/
|
||
|
||
-- set_option trace.Elab.reuse true
|
||
|
||
def basic : True := by
|
||
dbg_trace "b 0"
|
||
apply id
|
||
dbg_trace "b 1"
|
||
apply id
|
||
dbg_trace "b 2"
|
||
--^ sync
|
||
--^ insert: ".5"
|
||
|
||
/-!
|
||
Ideally trailing whitespace should be ignored. CURRENTLY NOT WORKING as we use `Syntax.eqWithInfo`;
|
||
we will need to patch old syntax info stored in the info tree to go back to `Syntax.structRangeEq`.
|
||
-/
|
||
-- RESET
|
||
def trailingWhitespace : True := by
|
||
dbg_trace "t 0"
|
||
dbg_trace "t 1"
|
||
dbg_trace "t 2"
|
||
--^ sync
|
||
--^ insert: "\n "
|
||
|
||
|
||
-- RESET
|
||
-- this used to restore the wrong elab state because of input context mis-tracking
|
||
def haveBug : True := by
|
||
have (a : Nat) : Nat → True := by
|
||
intro n m
|
||
--^ sync
|
||
--^ delete: "intro n m"
|
||
--^ sync
|
||
--^ insert: "intro n m"
|
||
--^ collectDiagnostics
|
||
exact m
|
||
|
||
/-! incremental reporting should obey `showPartialSyntaxErrors` -/
|
||
-- RESET
|
||
def partialSyntax : True := by apply (
|
||
--^ collectDiagnostics
|
||
|
||
/-! A tactic block not supported by incrementality should not accidentally swallow messages. -/
|
||
-- RESET
|
||
def otherMessage : Nat × Nat where
|
||
fst := no
|
||
snd := by skip
|
||
--^ collectDiagnostics
|
||
|
||
/-! Starting to type a comment should not invalidate the state above it. -/
|
||
-- RESET
|
||
def strayToken : True := by
|
||
dbg_trace "s"
|
||
unfold f
|
||
--^ sync
|
||
--^ insert: " -"
|
||
|
||
/-!
|
||
Insufficient reuse checking of trailing whitespace info in the info tree led to the goal view
|
||
showing multiple tactics as they all claimed to be at the end of the file (which they were in prior
|
||
versions).
|
||
-/
|
||
-- RESET
|
||
def dup_goals : True := by
|
||
show True
|
||
--^ sync
|
||
--^ insert: "show True\n show True\n show True\n show True\n "
|
||
|
||
--^ sync
|
||
--^ goals
|
||
-- (note that request positions are computed relative to the original document, so the checks above
|
||
-- will point at a `show` at run time)
|
||
|
||
/-!
|
||
A tactic mvar may sometimes escape the term elaboration it was created from and should not break
|
||
incremental reporting in this case.
|
||
-/
|
||
-- RESET
|
||
def tacInTermInTac : True := by
|
||
· rw [show 0 = 0 by rfl]
|
||
--^ collectDiagnostics
|
||
|
||
/-!
|
||
#4553 Similar to the above, but here the nested tactic block is not floated out, which means it
|
||
could unexpectedly get access to the surrounding combinator's incrementality context if not warded
|
||
against (in `Tactic.runTermElab`).
|
||
-/
|
||
-- RESET
|
||
def tacInTermInTac2 : True := by
|
||
cases (by exact 0) with
|
||
| zero => done
|
||
| succ => sorry
|
||
--^ collectDiagnostics
|
||
|
||
/-!
|
||
Error messages (or rather, whole snapshot subtrees) may vanish if we do not properly restore them on
|
||
reuse (which `Term.withRestoreOrSaveFull` now makes sure of).
|
||
-/
|
||
-- RESET
|
||
example : True := by
|
||
· · done
|
||
· done
|
||
· skip
|
||
--^ sync
|
||
--^ insert: " "
|
||
--^ collectDiagnostics
|
||
|
||
/-!
|
||
Incomplete syntax should not suppress errors in previous steps as that would prevent reuse.
|
||
-/
|
||
-- RESET
|
||
---set_option trace.Elab.info true
|
||
example : True := by
|
||
exact noSuchTheorem
|
||
skip
|
||
d
|
||
--^ sync
|
||
--^ delete: "d"
|
||
--^ collectDiagnostics
|