Add compose-function typings

compose-function/compose-function.d.ts

@@ -0,0 +1,31 @@
+// Type definitions for compose-function
+// Project: https://github.com/stoeffel/compose-function
+// Definitions by: Denis Sokolov <https://github.com/denis-sokolov>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+declare module "compose-function" {
+	// Hardcoded signatures for 2-4 parameters
+	function f<A, B, C>(
+		f1: (b: B) => C,
+		f2: (a: A) => B
+	): (a: A) => C
+	function f<A, B, C, D>(
+		f1: (b: C) => D,
+		f2: (a: B) => C,
+		f3: (a: A) => B
+	): (a: A) => D
+	function f<A, B, C, D, E>(
+		f1: (b: D) => E,
+		f2: (a: C) => D,
+		f3: (a: B) => C,
+		f4: (a: A) => B
+	): (a: A) => E
+
+	// Minimal typing for more than 4 parameters
+	function f<Result>(
+		f1: (a: any) => Result,
+		...functions: Function[]
+	): (a: any) => Result
+
+	export = f;
+}