--- a/jsbackend.js	Sun Mar 25 15:57:26 2012 -0700
+++ b/jsbackend.js	Sun Mar 25 16:11:19 2012 -0700
@@ -27,18 +27,18 @@
 	return o[p];
 }
 
-op.prototype.toJS = function(symbols, isReceiver) {
-	var ret = '(' + this.left.toJS(symbols) +' '+ (this.op == '=' ? '==' : this.op) +' '+ this.right.toJS(symbols) + ')';
+op.prototype.toJS = function(isReceiver) {
+	var ret = '(' + this.left.toJS() +' '+ (this.op == '=' ? '==' : this.op) +' '+ this.right.toJS() + ')';
 	if (isReceiver) {
 		ret = 'toobj' + ret;
 	}
 	return ret;
 };
 
-symbol.prototype.toJS = function(symbols) {
+symbol.prototype.toJS = function() {
 	var name = this.cleanName();
 	if (name == 'self') {
-		return symbols.selfVar();
+		return this.symbols.selfVar();
 	}
 	name = name.replace("_", "UN_").replace(":", "CN_").replace("!", "EX_").replace('?', 'QS_').replace('@', 'AT_');
 	var reserved = {'true': true, 'false': true, 'this': true, 'if': true, 'else': true, 'NaN': true};
@@ -48,19 +48,19 @@
 	return name;
 }
 
-intlit.prototype.toJS = function(symbols) {
+intlit.prototype.toJS = function() {
 	return this.val.toString();
 }
 
-floatlit.prototype.toJS = function(symbols) {
+floatlit.prototype.toJS = function() {
 	return this.val.toString();
 }
 
-strlit.prototype.toJS = function(symbols) {
+strlit.prototype.toJS = function() {
 	return '"' + this.val.replace('\\', '\\\\').replace('"', '\\"').replace('\n', '\\n').replace('\r', '\\r') + '"';
 }
 
-funcall.prototype.toJS = function(symbols) {
+funcall.prototype.toJS = function() {
 	var name = this.name[this.name.length-1] == ':' ? this.name.substr(0, this.name.length-1) : this.name;
 	if (name == 'foreign') {
 		if ((this.args[0] instanceof lambda) || (this.args[0] instanceof object)) {
@@ -75,79 +75,77 @@
 	if (this.receiver) {
 		args.splice(0, 0, this.receiver);
 	}
-	var funinfo = symbols.find(name);
+	var funinfo = this.symbols.find(name);
 	if (!funinfo) {
 		var receiver = args[0];
 		args.splice(0, 1);
 		for (var i in args) {
-			args[i] = args[i].toJS(symbols);
+			args[i] = args[i].toJS();
 		}
-		return receiver.toJS(symbols, true) + '.' + (new symbol(name)).toJS(symbols) + '(' + args.join(', ') + ')';
+		return receiver.toJS(true) + '.' + (new symbol(name, this.symbols)).toJS() + '(' + args.join(', ') + ')';
 	}
 	switch(funinfo.type)
 	{
 	case 'self':
 		if (args.length < funinfo.def.args.length || funinfo.def.args[0].name != 'self') {
-			var receiver = new symbol('self');
+			var receiver = new symbol('self', this.symbols);
 		} else {
 			var receiver = args[0];
 			args.splice(0, 1);
 		}
 		for (var i in args) {
-			args[i] = args[i].toJS(symbols);
+			args[i] = args[i].toJS();
 		}
-		return receiver.toJS(symbols, true) + '.' + (new symbol(name)).toJS(symbols) + '(' + args.join(', ') + ')';
+		return receiver.toJS(true) + '.' + (new symbol(name, this.symbols)).toJS() + '(' + args.join(', ') + ')';
 	case 'parent':
 		var ret = 'this';
 		for (var i = 0; i < funinfo.depth; ++i) {
 			ret += '.parent';
 		}
 		for (var i in args) {
-			args[i] = args[i].toJS(symbols);
+			args[i] = args[i].toJS();
 		}
-		ret += (new symbol(name)).toJS(symbols) + '(' + args.join(', ') + ')';
+		ret += (new symbol(name, this.symbols)).toJS() + '(' + args.join(', ') + ')';
 		return ret;
 	case 'local':
 	case 'upvar':
 	case 'foreign':
 		for (var i in args) {
-			args[i] = args[i].toJS(symbols);
+			args[i] = args[i].toJS();
 		}
-		return (new symbol(name)).toJS(symbols) + '(' + args.join(', ') + ')';
+		return (new symbol(name, this.symbols)).toJS() + '(' + args.join(', ') + ')';
 	}
 }
 
-object.prototype.toJS = function(symbols) {
+object.prototype.toJS = function() {
 	var messages = this.messages;
-	symbols = new osymbols(symbols);
 	var compiled = []
 	for (var i in messages) {
-		var js = messages[i].toJSObject(symbols);
+		var js = messages[i].toJSObject();
 		if (js) {
 			compiled.push(indent(js));
 		}
 	}
-	return '{\n\tparent: ' + symbols.parentObject() + ',\n\t' + compiled.join(',\n\t') + '\n}';
+	return '{\n\tparent: ' + this.symbols.parentObject() + ',\n\t' + compiled.join(',\n\t') + '\n}';
 }
 
 object.prototype.toJSModule = function() {
-	return '(function () {\n\tvar module = ' + indent(this.toJS(null)) + ';\n\treturn module;\n})'
+	this.populateSymbols(null);
+	return '(function () {\n\tvar module = ' + indent(this.toJS()) + ';\n\treturn module;\n})'
 }
 
-lambda.prototype.toJS = function(symbols) {
+lambda.prototype.toJS = function() {
 	var args = this.args ? this.args.slice(0, this.args.length) : [];
 	if (args.length && args[0].cleanName() == 'self') {
 		args.splice(0, 1);
 	}
 	var exprs = this.expressions;
-	symbols = new lsymbols(symbols);
 	for (var i in args) {
-		symbols.defineVar(args[i].cleanName(), null);
-		args[i] = args[i].toJS(symbols);
+		args[i] = args[i].toJS();
 	}
 	var compiled = []
 	for (var i in exprs) {
-		var js = exprs[i].toJS(symbols);
+		var js = exprs[i].toJS();
 		if (js) {
 			compiled.push(indent(js));
 		}
@@ -156,15 +154,17 @@
 	if (exprs.length) {
 		exprs[exprs.length-1] = 'return ' + exprs[exprs.length-1] + ';';
 	}
-	return 'function (' + args.join(', ') + ') {\n\t' + (symbols.needsSelfVar ? 'var self = this;\n\t' : '') + exprs.join(';\n\t') + '\n}'
+	return 'function (' + args.join(', ') + ') {\n\t' + (this.symbols.needsSelfVar ? 'var self = this;\n\t' : '') + exprs.join(';\n\t') + '\n}'
 };
-lambda.prototype.toJSModule = lambda.prototype.toJS
+lambda.prototype.toJSModule = function() {
+	this.populateSymbols(null);
+	return this.toJS();
+}
 
-assignment.prototype.toJS = function(symbols) {
-	var existing = symbols.find(this.symbol.name);
+assignment.prototype.toJS = function() {
+	var existing = this.symbols.find(this.symbol.name);
 	var prefix = '';
 	if (!existing) {
-		symbols.defineVar(this.symbol.name, this.expression);
 		prefix =  'var ';
 	} else {
 		switch (existing.type)
@@ -180,17 +180,16 @@
 			break;
 		}
 	}
-	var val = this.expression.toJS(symbols);
+	var val = this.expression.toJS();
 	if (val === null) {
 		return null;
 	}
-	return prefix + this.symbol.toJS(symbols) + ' = ' + val;
+	return prefix + this.symbol.toJS() + ' = ' + val;
 };
-assignment.prototype.toJSObject = function(symbols) {
-	symbols.defineMsg(this.symbol.name, this.expression);
-	var val = this.expression.toJS(symbols);
+assignment.prototype.toJSObject = function() {
+	var val = this.expression.toJS();
 	if (val === null) {
 		return null;
 	}
-	return this.symbol.toJS(symbols) + ': ' + val;
+	return this.symbol.toJS() + ': ' + val;
 };

--- a/parser.js	Sun Mar 25 15:57:26 2012 -0700
+++ b/parser.js	Sun Mar 25 16:11:19 2012 -0700
@@ -6,9 +6,10 @@
 	this.right = right;
 }
 
-function symbol(name)
+function symbol(name, symbols)
 {
 	this.name = name;
+	this.symbols = symbols;
 }
 symbol.prototype.cleanName = function() {
 	return this.name[0] == ':' ? this.name.substr(1) : this.name;