miniMAL: add classOf and fix printing.

1 files changed, 36 insertions, 0 deletions

diff --git a/js/interop.js b/js/interop.js
new file mode 100644
index 0000000..89da4a6
--- /dev/null
+++ b/js/interop.js
@@ -0,0 +1,36 @@
+// Node vs browser behavior
+var interop = {};
+if (typeof module === 'undefined') {
+    var exports = interop,
+        GLOBAL = window;
+}
+
+function resolve_js(str) {
+    if (str.match(/\./)) {
+        var re = /^(.*)\.\([^\.]*)$/,
+            match = re.exec(str);
+        return [eval(match[0]), eval(str)];
+    } else {
+        return [GLOBAL, eval(str)];
+    }
+}
+
+function js_to_mal(obj) {
+    var cache = [];
+    var str = JSON.stringify(obj, function(key, value) {
+        if (typeof value === 'object' && value !== null) {
+            if (cache.indexOf(value) !== -1) {
+                // Circular reference found, discard key
+                return;
+            }
+            // Store value in our collection
+            cache.push(value);
+        }
+        return value;
+    });
+    cache = null; // Enable garbage collection
+    return JSON.parse(str);
+}
+
+exports.resolve_js = interop.resolve_js = resolve_js;
+exports.js_to_mal = interop.js_to_mal = js_to_mal;