Merge branch 'incoming'

1 files changed, 92 insertions, 0 deletions

diff --git a/src/hello_world.js b/src/hello_world.js
new file mode 100644
index 00000000..01082eb4
--- /dev/null
+++ b/src/hello_world.js
@@ -0,0 +1,92 @@
+// *** Environment setup code ***
+var arguments_ = [];
+
+var ENVIRONMENT_IS_NODE = typeof process === 'object';
+var ENVIRONMENT_IS_WEB = typeof window === 'object';
+var ENVIRONMENT_IS_WORKER = typeof importScripts === 'function';
+var ENVIRONMENT_IS_SHELL = !ENVIRONMENT_IS_WEB && !ENVIRONMENT_IS_NODE && !ENVIRONMENT_IS_WORKER;
+
+if (ENVIRONMENT_IS_NODE) {
+  // Expose functionality in the same simple way that the shells work
+  // Note that we pollute the global namespace here, otherwise we break in node
+  print = function(x) {
+    process['stdout'].write(x + '\n');
+  };
+  printErr = function(x) {
+    process['stderr'].write(x + '\n');
+  };
+
+  var nodeFS = require('fs');
+
+  read = function(filename) {
+    var ret = nodeFS['readFileSync'](filename).toString();
+    if (!ret && filename[0] != '/') {
+      filename = __dirname.split('/').slice(0, -1).join('/') + '/src/' + filename;
+      ret = nodeFS['readFileSync'](filename).toString();
+    }
+    return ret;
+  };
+
+  load = function(f) {
+    globalEval(read(f));
+  };
+
+  arguments_ = process['argv'].slice(2);
+
+} else if (ENVIRONMENT_IS_SHELL) {
+  // Polyfill over SpiderMonkey/V8 differences
+  if (!this['read']) {
+    this['read'] = function(f) { snarf(f) };
+  }
+
+  if (typeof scriptArgs != 'undefined') {
+    arguments_ = scriptArgs;
+  } else if (typeof arguments != 'undefined') {
+    arguments_ = arguments;
+  }
+
+} else if (ENVIRONMENT_IS_WEB) {
+  this['print'] = printErr = function(x) {
+    console.log(x);
+  };
+
+  this['read'] = function(url) {
+    var xhr = new XMLHttpRequest();
+    xhr.open('GET', url, false);
+    xhr.send(null);
+    return xhr.responseText;
+  };
+
+  if (this['arguments']) {
+    arguments_ = arguments;
+  }
+} else if (ENVIRONMENT_IS_WORKER) {
+  // We can do very little here...
+
+  this['load'] = importScripts;
+
+} else {
+  throw 'Unknown runtime environment. Where are we?';
+}
+
+function globalEval(x) {
+  eval.call(null, x);
+}
+
+if (typeof load == 'undefined' && typeof read != 'undefined') {
+  this['load'] = function(f) {
+    globalEval(read(f));
+  };
+}
+
+if (typeof printErr === 'undefined') {
+  this['printErr'] = function(){};
+}
+
+if (typeof print === 'undefined') {
+  this['print'] = printErr;
+}
+// *** Environment setup code ***
+
+print('hello, world!');
+