diff options
Diffstat (limited to 'BJC-Utils2/src/main/java/bjc/utils/data/IPair.java')
| -rw-r--r-- | BJC-Utils2/src/main/java/bjc/utils/data/IPair.java | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/BJC-Utils2/src/main/java/bjc/utils/data/IPair.java b/BJC-Utils2/src/main/java/bjc/utils/data/IPair.java index 24e0381..2dbd141 100644 --- a/BJC-Utils2/src/main/java/bjc/utils/data/IPair.java +++ b/BJC-Utils2/src/main/java/bjc/utils/data/IPair.java @@ -68,8 +68,7 @@ public interface IPair<LeftType, RightType> extends Bifunctor<LeftType, RightTyp */ public default <OtherLeft, OtherRight> IPair<IPair<LeftType, OtherLeft>, IPair<RightType, OtherRight>> combine( IPair<OtherLeft, OtherRight> otherPair) { - return combine(otherPair, (left, otherLeft) -> new Pair<>(left, otherLeft), - (right, otherRight) -> new Pair<>(right, otherRight)); + return combine(otherPair, Pair<LeftType, OtherLeft>::new, Pair<RightType, OtherRight>::new); } /** @@ -113,8 +112,11 @@ public interface IPair<LeftType, RightType> extends Bifunctor<LeftType, RightTyp default <OldLeft, OldRight, NewLeft> Function<Bifunctor<OldLeft, OldRight>, Bifunctor<NewLeft, OldRight>> fmapLeft( Function<OldLeft, NewLeft> func) { return (argumentPair) -> { - if(!(argumentPair instanceof IPair<?, ?>)) throw new IllegalArgumentException( - "This function can only be applied to instances of IPair"); + if(!(argumentPair instanceof IPair<?, ?>)) { + String msg = "This function can only be applied to instances of IPair"; + + throw new IllegalArgumentException(msg); + } IPair<OldLeft, OldRight> argPair = (IPair<OldLeft, OldRight>) argumentPair; @@ -127,8 +129,11 @@ public interface IPair<LeftType, RightType> extends Bifunctor<LeftType, RightTyp fmapRight(Function<OldRight, NewRight> func) { return (argumentPair) -> { - if(!(argumentPair instanceof IPair<?, ?>)) throw new IllegalArgumentException( - "This function can only be applied to instances of IPair"); + if(!(argumentPair instanceof IPair<?, ?>)) { + String msg = "This function can only be applied to instances of IPair"; + + throw new IllegalArgumentException(msg); + } IPair<OldLeft, OldRight> argPair = (IPair<OldLeft, OldRight>) argumentPair; |