c96797eb93
When an implicit argument cannot be inferred, the error should show the
name of the argument.
Showing the argument name in the error message for an uninstantiated
metavariable was introduced in da33f498f5,
but this implementation causes some argument names to get lost.
33 lines
1.1 KiB
Text
33 lines
1.1 KiB
Text
holes.lean:4:4-4:7: error: placeholders '_' cannot be used where a function is expected
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holes.lean:11:8-11:13: error: don't know how to synthesize placeholder
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context:
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case hole
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x : Nat
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y : Nat := g x + g x
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⊢ Nat
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holes.lean:11:4-11:5: error: don't know how to synthesize placeholder
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context:
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x : Nat
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y : Nat := g x + g x
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⊢ Nat
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holes.lean:10:15-10:18: error: don't know how to synthesize implicit argument 'β'
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@g Nat (?m x) x
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context:
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x : Nat
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⊢ Type
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holes.lean:10:9-10:12: error: don't know how to synthesize implicit argument 'β'
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@g Nat (?m x) x
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context:
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x : Nat
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⊢ Type
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holes.lean:13:10-13:11: error: failed to infer binder type
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holes.lean:15:16-15:17: error: failed to infer binder type
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holes.lean:19:0-19:3: error: don't know how to synthesize implicit argument 'β'
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@f Nat (?m a) a
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context:
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a : Nat
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f : {α : Type} → {β : ?m a} → α → α := fun {α} {β} a => a
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⊢ ?m a
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holes.lean:18:9-18:10: error: failed to infer binder type
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holes.lean:21:25-22:4: error: failed to infer definition type
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holes.lean:25:8-25:11: error: failed to infer 'let rec' declaration type
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