05e5d934d3
Now, the following example produces a syntax error. ```lean macro "foo!" x:term : term => `($x + 1) check id foo! 10 ``` @Kha, I think the heuristic is simple and defensible. If the new syntax starts and ends with token, than the precedence is `maxPrec`. Otherwise, it is `leadPrec`. see #180
24 lines
899 B
Text
24 lines
899 B
Text
id fun (x : ?m) => x : ?m → ?m
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0 : Nat
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f 1 fun (x : Nat) => x : Nat
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0 : Nat
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f 1 fun (x : Nat) => x : Nat
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id : ?m → ?m
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precissues.lean:15:10: error: expected command, but found term; this error may be due to parsing precedence levels, consider parenthesizing the term
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id : ?m → ?m
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precissues.lean:17:10: error: expected command, but found term; this error may be due to parsing precedence levels, consider parenthesizing the term
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1 : Nat
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id ((fun (this : True) => this) True.intro) : True
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0 = (fun (this : Nat) => this) 1 : Prop
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0 = let x : Nat := 0; x : Prop
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p ↔ ¬q : Prop
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True = ¬False : Prop
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p ∧ ¬q : Prop
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¬p ∧ q : Prop
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¬p ↔ q : Prop
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¬p = q : Prop
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¬p = q : Prop
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id ¬p : Prop
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(a a_1 : Nat) → a_1 = a_1 : Prop
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id : ?m → ?m
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precissues.lean:41:10: error: expected command, but found term; this error may be due to parsing precedence levels, consider parenthesizing the term
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