Adding predicate static factory method

jnape · jnape · commit e86e212811a7 · 2018-08-02T22:51:13.000-05:00
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -9,6 +9,9 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/).
 - ***Breaking Change***: `Absent` moved to `semigroup.builtin` package
 - `RightAny` overload returns `Monoid`
 
+### Added
+- `Predicate#predicate` static factory method
+
 ## [3.1.0] - 2018-07-16
 ### Added
 - `Fn3-8` static factory overloads to aid in coercing lambdas
diff --git a/src/main/java/com/jnape/palatable/lambda/functions/specialized/Predicate.java b/src/main/java/com/jnape/palatable/lambda/functions/specialized/Predicate.java
@@ -82,4 +82,15 @@ default Predicate<A> or(java.util.function.Predicate<? super A> other) {
     default Predicate<A> negate() {
         return a -> !apply(a);
     }
+
+    /**
+     * Static factory method to create a predicate from a function.
+     *
+     * @param predicate the function
+     * @param <A>       the input type
+     * @return the predicate
+     */
+    static <A> Predicate<A> predicate(Function<? super A, Boolean> predicate) {
+        return predicate::apply;
+    }
 }
