Higher order this parameter inference, like microsoft#31116

jablko · Jan 29, 2020 · c0ec24c · c0ec24c
1 parent 3b919e2
commit c0ec24c
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/compiler/checker.ts b/src/compiler/checker.ts
@@ -24006,7 +24006,7 @@ namespace ts {
             const thisType = getThisTypeOfSignature(signature);
             if (thisType) {
                 const thisArgumentNode = getThisArgumentOfCall(node);
-                const thisArgumentType = thisArgumentNode ? checkExpression(thisArgumentNode) : voidType;
+                const thisArgumentType = thisArgumentNode ? checkExpressionWithContextualType(thisArgumentNode, thisType, context, checkMode) : voidType;
                 inferTypes(context.inferences, thisArgumentType, thisType);
             }