fold done.

README.md

@@ -6,7 +6,6 @@ CI|status
 :---|:---:
 Travis CI|[![Build Status](https://travis-ci.org/lice-lang/lice.svg?branch=master)](https://travis-ci.org/lice-lang/lice)
 AppVeyor|[![Build status](https://ci.appveyor.com/api/projects/status/7d6lyinb0xr6hagn?svg=true)](https://ci.appveyor.com/project/ice1000/lice/branch/master)
-CodeShip|[![CodeShip](https://codeship.com/projects/ce3500b0-0a1d-0135-8b3c-6ed4d7e33e57/status?branch=master)](https://app.codeship.com/projects/214703)
 CircleCI|[![CircleCI](https://circleci.com/gh/lice-lang/lice/tree/master.svg?style=svg)](https://circleci.com/gh/lice-lang/lice/tree/master)
 
 [![JitPack](https://jitpack.io/v/lice-lang/lice.svg)](https://jitpack.io/#lice-lang/lice)<br/>
@@ -42,7 +41,7 @@ allprojects {
 }
 
 dependencies {
-  compile 'com.github.lice-lang:lice:v3.1'
+  compile 'com.github.lice-lang:lice:v3.1.1'
 }
 ```
 
@@ -51,15 +50,15 @@ But if you use Scala, you can add it to your sbt dependency, by adding the stuff
 ```sbtshell
 resolvers += "jitpack" at "https://jitpack.io"
 
-libraryDependencies += "com.github.lice-lang" % "lice" % "v3.1"
+libraryDependencies += "com.github.lice-lang" % "lice" % "v3.1.1"
 ```
 
 And if you're a Clojure developer, why not try build it with leiningen?
 
 ```leiningen
 :repositories [["jitpack" "https://jitpack.io"]]
 
-:dependencies [[com.github.lice-lang/lice "v3.1"]]
+:dependencies [[com.github.lice-lang/lice "v3.1.1"]]
 ```
 
 ## Contribute

build.gradle

@@ -1,5 +1,5 @@
 group 'org.lice'
-version '3.1'
+version '3.1.1'
 
 buildscript {
 	ext.kotlin_version = '1.1.2-2'

src/test/kotlin/org/lice/FeatureTest.kt

@@ -484,9 +484,20 @@ side-effect
 
 	/**
 	 * lambda as parameter
+	 *
+	 * sample: defining a fold
 	 */
+	@Test(timeout = 1000)
 	fun test33() {
 		"((expr op (op 1 2)) (lambda a b (+ a b)))" shouldBe 3
 		"((expr op (op 3 4)) (lambda a b (+ (* a a) (* b b))))" shouldBe 25
+		//language=TEXT
+		"""
+(defexpr fold ls init op
+ (for-each index-var ls
+   (-> init (op init index-var))))
+
+(fold (.. 1 4) 0 +)
+""" shouldBe 10
 	}
 }

src/test/kotlin/org/lice/StdTest.kt

@@ -4,6 +4,7 @@ import org.junit.Test
 import org.lice.compiler.parse.createRootNode
 import org.lice.compiler.util.forceRun
 import org.lice.compiler.util.println
+import org.lice.lang.Echoer
 import java.io.File
 
 /**
@@ -81,6 +82,21 @@ class StdTest {
 		else println(ls.last())
 	}
 
+	@Test
+	fun testKotlinSupportLambdaRec() {
+		fun lambda(it: Int): Int = if (it <= 2) 1 else lambda(it - 1) + lambda(it - 2)
+		Echoer.printer = ::println
+		(1..10)
+				.map(::lambda)
+				.forEach(Echoer::echoln)
+
+		var lambda2: (Int) -> Int = { it }
+		lambda2 = { if (it <= 2) 1 else lambda(it - 1) + lambda(it - 2) }
+		(1..10)
+				.map(lambda2)
+				.forEach(Echoer::echoln)
+	}
+
 	companion object {
 		@JvmStatic
 		fun main(args: Array<String>) {