Imply needs from the tag passed to giveTags if not set

Author: simensen

src/Illuminate/Container/ContextualBindingBuilder.php

@@ -75,6 +75,10 @@ public function give($implementation)
      */
     public function giveTagged($tag)
     {
+        if (! $this->needs) {
+            $this->needs = $tag;
+        }
+
         $this->give(function ($container) use ($tag) {
             $taggedServices = $container->tagged($tag);
 

tests/Container/ContextualBindingTest.php

@@ -359,6 +359,24 @@ public function testContextualBindingGivesTagsForVariadic()
         $this->assertInstanceOf(ContainerContextImplementationStub::class, $resolvedInstance->stubs[0]);
         $this->assertInstanceOf(ContainerContextImplementationStubTwo::class, $resolvedInstance->stubs[1]);
     }
+
+    public function testContextualBindingGivesTagsForVariadicNoNeeds()
+    {
+        $container = new Container;
+
+        $container->tag([
+            ContainerContextImplementationStub::class,
+            ContainerContextImplementationStubTwo::class,
+        ], [IContainerContextContractStub::class]);
+
+        $container->when(ContainerTestContextInjectVariadic::class)->giveTagged(IContainerContextContractStub::class);
+
+        $resolvedInstance = $container->make(ContainerTestContextInjectVariadic::class);
+
+        $this->assertCount(2, $resolvedInstance->stubs);
+        $this->assertInstanceOf(ContainerContextImplementationStub::class, $resolvedInstance->stubs[0]);
+        $this->assertInstanceOf(ContainerContextImplementationStubTwo::class, $resolvedInstance->stubs[1]);
+    }
 }
 
 interface IContainerContextContractStub