fix accessor assignment

TheLartians · TheLartians · commit a2c6dca4d727 · 2019-01-26T15:13:31.000+01:00
diff --git a/src/LuaTransformer.ts b/src/LuaTransformer.ts
@@ -1797,7 +1797,10 @@ export class LuaTransformer {
             );
         }
 
-        if (ts.isPropertyAccessExpression(expression.left) || ts.isElementAccessExpression(expression.left)) {
+        if (
+            ts.isPropertyAccessExpression(expression.left) && !tsHelper.hasSetAccessor(expression.left, this.checker)
+            || ts.isElementAccessExpression(expression.left)
+        ) {
             // Left is property/element access: cache result while maintaining order of evaluation
             // (function(o, i, v) o[i] = v; return v end)(${objExpression}, ${indexExpression}, ${right})
             const objParameter = tstl.createIdentifier("o");
