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import net.plan99.nodejs.NodeJS;
public class Demo {
public static void main(String[] args) {
int result = NodeJS.runJS(() ->
NodeJS.eval("return 2 + 3 + 4").asInt()
mikehearn / kotin-native-win32.kt
Created Sep 28, 2018
Example of using Kotlin/Native on Windows
View kotin-native-win32.kt
typealias WSTR = CPointer<ShortVar>
private fun WSTR.toKString(): String = memScoped {
// Figure out how much memory we need after UTF-8 conversion.
val sz = WideCharToMultiByte(CP_UTF8, WC_ERR_INVALID_CHARS, this@toKString, -1, null, 0, null, null)
// Now convert to UTF-8 and from there, a String.
val utf8 = allocArray<ByteVar>(sz)
val r = WideCharToMultiByte(CP_UTF8, WC_ERR_INVALID_CHARS, this@toKString, -1, utf8, sz, null, null)
if (r == 0) throw RuntimeException("Could not convert to UTF-8")
mikehearn / di-helpers.kt
Created Dec 21, 2017
Simple dependency helpers
View di-helpers.kt
package net.corda.node.internal
import java.time.Clock
import java.time.Duration
import java.time.Instant
import java.time.ZoneId
import kotlin.reflect.KProperty
mikehearn / hello.html
Last active Sep 30, 2017
HTML version of the JavaFX JavaScript hello world sample
View hello.html
<title>Hello World!</title>
div.centered {
padding: 1em;
position: absolute;
top: 50%;
left: 50%;
margin-right: -50%;
mikehearn / hello.js
Last active Sep 30, 2017
Hello World in JavaFX using Nashorn
View hello.js
// Run like this: jjs -fx hello.js
// Set the title bar.
$STAGE.title = "Hello World!";
// Create a button and place it in a layout that will center it.
var button = new Button();
button.text = "Say 'Hello World'";
button.onAction = function() print("Hello World!");
View AmazonSearch.kt
enum SortBy {
class AmazonSearch(
mikehearn / jlink --list-plugins
Created Jun 19, 2017
Output of jlink --list-plugins in Java 9 EA build 172
View jlink --list-plugins
View tinyram-opcodes.cpp
enum tinyram_opcode {
tinyram_opcode_AND = 0b00000,
tinyram_opcode_OR = 0b00001,
tinyram_opcode_XOR = 0b00010,
tinyram_opcode_NOT = 0b00011,
tinyram_opcode_ADD = 0b00100,
tinyram_opcode_SUB = 0b00101,
// Multiplications
tinyram_opcode_MULL = 0b00110,

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  • I am mikehearn on github.
  • I am hearn ( on keybase.
  • I have a public key ASAtBlfHGFrnjtqS-telpy4tveHymEWbfRtzMnMQYgKOMgo

To claim this, I am signing this object:

View BriefLogFormatter.kt
// A couple of inlined utility functions: the first is just a syntax convenience, the second lets us use
// Kotlin's string interpolation efficiently: the message is never calculated/concatenated together unless
// logging at that level is enabled.
inline fun <reified T : Any> loggerFor(): org.slf4j.Logger = LoggerFactory.getLogger(
inline fun org.slf4j.Logger.trace(msg: () -> String) {
if (isTraceEnabled) trace(msg())
* A Java logging formatter that writes more compact output than the default.
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