зеркало из https://github.com/mozilla/pluotsorbet.git
56 строки
1.8 KiB
JavaScript
56 строки
1.8 KiB
JavaScript
/* -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* vim: set shiftwidth=4 tabstop=4 autoindent cindent expandtab: */
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'use strict';
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var CLASSES;
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var JVM = function() {
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if (this instanceof JVM) {
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CLASSES = new Classes();
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} else {
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return new JVM();
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}
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}
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JVM.prototype.addPath = function(path, data) {
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return CLASSES.addPath(path, data);
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}
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JVM.prototype.run = function(className, args) {
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var classInfo = CLASSES.getClass(className);
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if (!classInfo) {
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throw new Error("Could not find or load main class " + className);
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}
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var entryPoint = CLASSES.getEntryPoint(classInfo);
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if (!entryPoint) {
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throw new Error("Could not find main method in class " + className);
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}
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var ctx = new Context();
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var caller = new Frame();
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ctx.frames.push(caller);
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// These classes are guaranteed to not have a static initializer.
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CLASSES.java_lang_Object = CLASSES.loadClass("java/lang/Object");
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CLASSES.java_lang_Class = CLASSES.loadClass("java/lang/Class");
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CLASSES.java_lang_String = CLASSES.loadClass("java/lang/String");
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CLASSES.java_lang_Thread = CLASSES.loadClass("java/lang/Thread");
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ctx.thread = CLASSES.mainThread = CLASSES.newObject(CLASSES.java_lang_Thread);
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ctx.thread.pid = util.id();
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ctx.thread.alive = true;
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caller.stack.push(CLASSES.mainThread);
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caller.stack.push(CLASSES.newString("main"));
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ctx.pushFrame(CLASSES.getMethod(CLASSES.java_lang_Thread, "<init>", "(Ljava/lang/String;)V"), 2);
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ctx.execute(caller);
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var arr = CLASSES.newArray("[Ljava/lang/String;", args.length);
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for (var n = 0; n < args.length; ++n)
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arr[n] = CLASSES.newString(args[n]);
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caller.stack.push(arr);
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ctx.pushFrame(entryPoint, 1);
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ctx.start(caller);
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}
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