Fix pattern metamodel compiling unneeded models.

Pattern metamodel compilation was loading ALL concrete syntax models.
This led to all pattern metamodel being overwritten, which led to an error with abstract class icons.
This commit makes it so that only the concrete syntax model which matches the name of the abstract syntax model will be loaded.

csworker.js

@@ -1796,34 +1796,44 @@ const _siocl = require('socket.io-client');
 		{
 			if( (matches = uri.match(/\.pattern\.metamodel/)) )
 			{
-				var matches   	 = uri.match(/\/GET(((.*\/).*).pattern.metamodel)/),
-					 RAMasmmPath = './users'+matches[1],
-					 asmmPath  	 = './users'+matches[2]+'.metamodel',
-					 parentDir	 = './users'+matches[3],
-					 asmm		 	 = undefined,
-					 csmms	 	 = {},
-					 actions		 = 
-	 					 [_fs.readFile(asmmPath,'utf8'),
-						  function(data)
-	 					  {
-	 						  asmm = data;
-	 						  return _fs.readdir(parentDir);
-	 					  }];
+				let matches = uri.match(/\/GET(((.*\/).*).pattern.metamodel)/);
+				let RAMasmmPath = './users' + matches[1];
+				let asmmPath = './users' + matches[2] + '.metamodel';
+				let parentDir = './users' + matches[3];
+				let asmm = undefined;
+				let csmms = {};
+				let actions =
+					[_fs.readFile(asmmPath, 'utf8'),
+						function (data) {
+							asmm = data;
+							return _fs.readdir(parentDir);
+						}];
+
+				// only rewrite CS models matching the metamodel name
+				// obtains last token in path
+				let metamodel_name = matches[2].split("/").slice(-1)[0];
 
 				_do.chain(actions)(
-						function(files) 
+						function(files)
 						{
-							files = 
+							files =
 								  files.filter(
-	 								  function(f) 
-									 	 {return f.match(/\..*Icons\.metamodel/);});
+	 								  function(f)
+									 	 {
+									 	 	let m = metamodel_name + "\..*Icons\.metamodel";
+									 	 	return f.match(m);
+									 	 });
+
+							if (files.length === 0) {
+								throw 'could not match concrete syntax model to metamodel. model names must match';
+							}
 
 						  	var ramActions = [__successContinuable()];
 							files.forEach(
 								function(f)
 								{
 									ramActions.push(
-										function() 
+										function()
 										{
 											return _fs.readFile(parentDir+f,'utf8');
 										},
@@ -1831,10 +1841,10 @@ const _siocl = require('socket.io-client');
 										{
 											csmms[f] = data;
 											return __successContinuable();
-  										});								  		
+  										});
 	 							});
 							ramActions.push(
-									function() 
+									function()
 									{
 										var res = _mt.ramify(_utils.jsonp(asmm),csmms);
 										asmm	= res['asmm'];
@@ -1847,7 +1857,7 @@ const _siocl = require('socket.io-client');
 								function(f)
 								{
 									ramActions.push(
-										function() 
+										function()
 										{
 											var RAMf = parentDir +
 														  f.match(/(.*)\.metamodel/)[1] +