Changed key default to string|int for an array

Author: mvriel

src/Types/Array_.php

@@ -41,7 +41,7 @@ final class Array_ implements Type
     public function __construct(Type $valueType = null, Type $keyType = null)
     {
         if ($keyType === null) {
-            $keyType = new Mixed();
+            $keyType = new Compound([ new String_(), new Integer() ]);
         }
         if ($valueType === null) {
             $valueType = new Mixed();

tests/unit/TypeResolverTest.php

@@ -137,7 +137,7 @@ public function testResolvingTypedArrays()
 
         $this->assertInstanceOf('phpDocumentor\Reflection\Types\Array_', $resolvedType);
         $this->assertSame('string[]', (string)$resolvedType);
-        $this->assertInstanceOf('phpDocumentor\Reflection\Types\Mixed', $resolvedType->getKeyType());
+        $this->assertInstanceOf('phpDocumentor\Reflection\Types\Compound', $resolvedType->getKeyType());
         $this->assertInstanceOf('phpDocumentor\Reflection\Types\String_', $resolvedType->getValueType());
     }
 
@@ -163,11 +163,11 @@ public function testResolvingNestedTypedArrays()
         $this->assertInstanceOf('phpDocumentor\Reflection\Types\Array_', $resolvedType);
 
         $this->assertSame('string[][]', (string)$resolvedType);
-        $this->assertInstanceOf('phpDocumentor\Reflection\Types\Mixed', $resolvedType->getKeyType());
+        $this->assertInstanceOf('phpDocumentor\Reflection\Types\Compound', $resolvedType->getKeyType());
         $this->assertInstanceOf('phpDocumentor\Reflection\Types\Array_', $childValueType);
 
         $this->assertSame('string[]', (string)$childValueType);
-        $this->assertInstanceOf('phpDocumentor\Reflection\Types\Mixed', $childValueType->getKeyType());
+        $this->assertInstanceOf('phpDocumentor\Reflection\Types\Compound', $childValueType->getKeyType());
         $this->assertInstanceOf('phpDocumentor\Reflection\Types\String_', $childValueType->getValueType());
     }