From 1d93877e7c8a7d42c27a369011377d9e214431ef Mon Sep 17 00:00:00 2001
From: dcodeIO <dcode@dcode.io>
Date: Thu, 29 Nov 2018 13:12:06 +0100
Subject: [PATCH] Fix unsupported element access on 'this', see #349

---
 src/resolver.ts | 19 ++++++++++++-------
 1 file changed, 12 insertions(+), 7 deletions(-)

diff --git a/src/resolver.ts b/src/resolver.ts
index 7d23410e..7b79b09c 100644
--- a/src/resolver.ts
+++ b/src/resolver.ts
@@ -505,7 +505,7 @@ export class Resolver extends DiagnosticEmitter {
         }
         break;
       }
-      case ElementKind.CLASS: { // element access on element access
+      case ElementKind.CLASS: {
         let indexedGet = (<Class>target).lookupOverload(OperatorKind.INDEXED_GET);
         if (!indexedGet) {
           if (reportMode == ReportMode.REPORT) {
@@ -516,13 +516,18 @@ export class Resolver extends DiagnosticEmitter {
           }
           return null;
         }
-        let returnType = indexedGet.signature.returnType;
-        if (target = returnType.classReference) {
-          this.currentThisExpression = targetExpression;
-          this.currentElementExpression = elementAccess.elementExpression;
-          return target;
+        if (targetExpression.kind == NodeKind.ELEMENTACCESS) { // nested element access
+          let returnType = indexedGet.signature.returnType;
+          if (target = returnType.classReference) {
+            this.currentThisExpression = targetExpression;
+            this.currentElementExpression = elementAccess.elementExpression;
+            return target;
+          }
+          return null;
         }
-        break;
+        this.currentThisExpression = targetExpression;
+        this.currentElementExpression = elementAccess.elementExpression;
+        return target;
       }
     }
     if (reportMode == ReportMode.REPORT) {