4d58a3d124
This PR unifies various ways of naming auxiliary declarations in a conflict-free way and ensures the method is compatible with diverging branches of elaboration such as parallelism or Aesop-like backtracking+replaying search.
54 lines
1 KiB
Text
54 lines
1 KiB
Text
import Lean
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open Lean Meta Tactic Grind
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def runGrind (x : GrindM α) : MetaM α := do
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GrindM.run x (← mkParams {}) (pure ())
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@[noinline] def mkA (x : Nat) := x + 1
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def tst (a b : Nat) : GrindM Unit := do
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IO.println a
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IO.println b
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let a ← shareCommon (mkNatLit a)
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let b ← shareCommon (mkNatLit b)
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IO.println (isSameExpr a b)
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/--
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info: 1000000000000000000000000001
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1000000000000000000000000001
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true
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-/
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#guard_msgs (info) in
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run_meta do
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let a := mkA 1000000000000000000000000000
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let b := 1000000000000000000000000001
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runGrind (tst a b)
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/--
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info: 1001
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1001
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true
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-/
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#guard_msgs (info) in
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run_meta do
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let a := mkA 1000
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let b := 1001
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runGrind (tst a b)
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def tst2 (a b : Nat) : IO Unit := do
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IO.println a
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IO.println b
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let (a, b) := ShareCommon.shareCommon' (mkNatLit a, mkNatLit b)
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IO.println (isSameExpr a b)
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/--
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info: 1000000000000000000000000001
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1000000000000000000000000001
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true
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-/
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#guard_msgs (info) in
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run_meta do
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let a := mkA 1000000000000000000000000000
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let b := 1000000000000000000000000001
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tst2 a b
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