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support for scoped and local default instances #6604

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leodemoura opened this issue Jan 11, 2025 · 0 comments
Open

support for scoped and local default instances #6604

leodemoura opened this issue Jan 11, 2025 · 0 comments
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@leodemoura
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The attribute default_instance currently does not support local and scoped modifiers.
Motivation:

/-- info: 1 + 2 : Nat -/
#guard_msgs in #check 1 + 2

@[local default_instance 101]  -- Error: `default_instance` must be global
instance instOfNatInt (n : Nat) : OfNat Int n where
  ofNat := n

/-- info: 1 + 2 : Int -/
#guard_msgs in #check 1 + 2
@leodemoura leodemoura added the bug Something isn't working label Jan 11, 2025
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@leodemoura