eabde77d84
This PR improves the type-as-hole error message. Type-as-hole error for theorem declarations should not admit the possibility of omitting the type entirely. --------- Co-authored-by: Joachim Breitner <mail@joachim-breitner.de>
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 type of `f7`
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holes.lean:25:8-25:11: error: failed to infer 'let rec' declaration type
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