Add basic support for getter properties

Issue angelozerr#377

Author: marijnh

lib/infer.js

@@ -930,19 +930,23 @@
 
       for (var i = 0; i < node.properties.length; ++i) {
         var prop = node.properties[i], key = prop.key, name;
-        if (prop.value.name == "✖") {
-          continue;
-        } else if (key.type == "Identifier") {
+        if (prop.value.name == "✖") continue;
+        
+        if (key.type == "Identifier") {
           name = key.name;
         } else if (typeof key.value == "string") {
           name = key.value;
-        } else {
+        }
+        if (!name || prop.kind == "set") {
           infer(prop.value, scope, c, ANull);
           continue;
         }
-        var val = obj.defProp(name, key);
+
+        var val = obj.defProp(name, key), out = val;
         val.initializer = true;
-        infer(prop.value, scope, c, val, name);
+        if (prop.kind == "get")
+          out = new IsCallee(obj, [], null, val);
+        infer(prop.value, scope, c, out, name);
       }
       return obj;
     }),
@@ -1339,8 +1343,7 @@
   };
 
   function findType(node, scope) {
-    var found = typeFinder[node.type](node, scope);
-    return found;
+    return typeFinder[node.type](node, scope);
   }
 
   var searchVisitor = exports.searchVisitor = walk.make({

plugin/doc_comment.js

@@ -44,7 +44,7 @@
       },
       ObjectExpression: function(node) {
         for (var i = 0; i < node.properties.length; ++i)
-          attachComments(node.properties[i].key);
+          attachComments(node.properties[i]);
       },
       CallExpression: function(node) {
         if (isDefinePropertyCall(node)) attachComments(node);
@@ -82,10 +82,10 @@
       },
       ObjectExpression: function(node, scope) {
         for (var i = 0; i < node.properties.length; ++i) {
-          var prop = node.properties[i], key = prop.key;
-          if (key.commentsBefore)
-            interpretComments(prop, key.commentsBefore, scope,
-                              node.objType.getProp(key.name));
+          var prop = node.properties[i];
+          if (prop.commentsBefore)
+            interpretComments(prop, prop.commentsBefore, scope,
+                              node.objType.getProp(prop.key.name));
         }
       },
       CallExpression: function(node, scope) {