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Minor refactoring

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This commit is contained in:
Patrick Lühne 2020-04-28 02:39:58 +02:00
parent 80aafb2359
commit 0fb2be4897
Signed by: patrick
GPG Key ID: 05F3611E97A70ABF
1 changed files with 7 additions and 4 deletions
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11
src/parse/formulas.rs
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@ -137,10 +137,13 @@ impl<'i> FormulaStr<'i>
None => Some(logical_connective),
Some(top_level_logical_connective) =>
{
if (logical_connective == LogicalConnective::ImpliesLeftToRight
&& top_level_logical_connective == LogicalConnective::ImpliesRightToLeft)
|| (logical_connective == LogicalConnective::ImpliesRightToLeft
&& top_level_logical_connective == LogicalConnective::ImpliesLeftToRight)
let implication_directions_are_mixed =
logical_connective == LogicalConnective::ImpliesLeftToRight
&& top_level_logical_connective == LogicalConnective::ImpliesRightToLeft
|| logical_connective == LogicalConnective::ImpliesRightToLeft
&& top_level_logical_connective == LogicalConnective::ImpliesLeftToRight;
if implication_directions_are_mixed
{
return Err(crate::parse::Error::new_mixed_implication_directions(
crate::parse::error::Location::new(0, Some(0)),