init

examples/showcase.gt

@@ -0,0 +1,78 @@
+package examples.showcase
+
+import fmt
+import strings
+
+interface Greeter {
+    fun greet(name: String): String
+}
+
+class PrefixGreeter(val prefix: String): Greeter {
+    fun greet(name: String): String {
+        return prefix + " " + name
+    }
+}
+
+worker Counter {
+    val count = 0
+
+    fun increment() {
+        count += 1
+    }
+
+    fun value(): Int {
+        return count
+    }
+}
+
+fun risky(input: String): String {
+    if (input == "boom") {
+        throw "boom requested"
+    }
+    return input
+}
+
+fun main() {
+    val greeter: Greeter = PrefixGreeter("hello")
+    println(greeter.greet("gotlin"))
+
+    val names = listOf<String>("ada", "linus")
+    val scores = mapOf<String, Int>("ada", 10, "linus", 8)
+    println(names)
+    println(scores)
+
+    val upper = strings.ToUpper("gotlin")
+    fmt.Println("interop:", upper)
+
+    val result = runCatching({ risky("boom") })
+    if (result.isSuccess()) {
+        println("runCatching: success")
+    } else {
+        println("runCatching:")
+        println(result.exceptionOrNull())
+    }
+
+    val maybe: any = null
+    if (maybe == null) {
+        println("null check works")
+    }
+
+    val counter = Counter()
+    counter.increment()
+    counter.increment()
+    fmt.Println("worker value:", counter.value())
+
+    val ready = Channel<String>()
+    go {
+        select {
+            after(120) -> ready.send("timer fired")
+        }
+    }
+    select {
+        ready -> println("channel says: " + it)
+    }
+
+    select {
+        every(50) -> println("one periodic tick")
+    }
+}