tools/fidl/fidldoc/goldens/nullable.md.golden

<link rel="stylesheet" href="../style.css" />

[TOC]
# test.nullable



## **PROTOCOLS**

## SimpleProtocol {#SimpleProtocol}
*Defined in [test.nullable/nullable.test.fidl](https://cs.opensource.google/fuchsia/fuchsia/+/main:tools/fidl/fidlc/testdata/nullable.test.fidl;l=17)*


### Add {#SimpleProtocol.Add}




#### Request {#SimpleProtocol.Add_Request}

<table>
    <tr><th>Name</th><th>Type</th></tr>
        <tr>
            <td><code>a</code></td>
            <td>
                <code>int32</code>
            </td>
        </tr>
        <tr>
            <td><code>b</code></td>
            <td>
                <code>int32</code>
            </td>
        </tr>
</table>


#### Response {#SimpleProtocol.Add_Response}

<table>
    <tr><th>Name</th><th>Type</th></tr>
        <tr>
            <td><code>sum</code></td>
            <td>
                <code>int32</code>
            </td>
        </tr>
</table>


## **STRUCTS**

### Int32Wrapper  {#Int32Wrapper data-text="Int32Wrapper"}
*Defined in [test.nullable/nullable.test.fidl](https://cs.opensource.google/fuchsia/fuchsia/+/main:tools/fidl/fidlc/testdata/nullable.test.fidl;l=34)*

<table>
    <tr><th>Field</th><th>Type</th><th>Description</th><th>Default</th></tr>
        <tr id="Int32Wrapper.val">
            <td><code>val</code></td>
            <td>
                <code>int32</code>
            </td>
            <td></td>
            <td>No default</td>
        </tr>
</table>

### StructWithNullableHandle [resource](/fuchsia-src/reference/fidl/language/language.md#value-vs-resource){:.fidl-attribute} {#StructWithNullableHandle data-text="StructWithNullableHandle"}
*Defined in [test.nullable/nullable.test.fidl](https://cs.opensource.google/fuchsia/fuchsia/+/main:tools/fidl/fidlc/testdata/nullable.test.fidl;l=13)*

<table>
    <tr><th>Field</th><th>Type</th><th>Description</th><th>Default</th></tr>
        <tr id="StructWithNullableHandle.val">
            <td><code>val</code></td>
            <td>
                <code>handle&lt;vmo&gt;?</code>
            </td>
            <td></td>
            <td>No default</td>
        </tr>
</table>

### StructWithNullableProtocol [resource](/fuchsia-src/reference/fidl/language/language.md#value-vs-resource){:.fidl-attribute} {#StructWithNullableProtocol data-text="StructWithNullableProtocol"}
*Defined in [test.nullable/nullable.test.fidl](https://cs.opensource.google/fuchsia/fuchsia/+/main:tools/fidl/fidlc/testdata/nullable.test.fidl;l=26)*

<table>
    <tr><th>Field</th><th>Type</th><th>Description</th><th>Default</th></tr>
        <tr id="StructWithNullableProtocol.val">
            <td><code>val</code></td>
            <td>
                <code><a class='link' href='#SimpleProtocol'>SimpleProtocol</a>?</code>
            </td>
            <td></td>
            <td>No default</td>
        </tr>
</table>

### StructWithNullableRequest [resource](/fuchsia-src/reference/fidl/language/language.md#value-vs-resource){:.fidl-attribute} {#StructWithNullableRequest data-text="StructWithNullableRequest"}
*Defined in [test.nullable/nullable.test.fidl](https://cs.opensource.google/fuchsia/fuchsia/+/main:tools/fidl/fidlc/testdata/nullable.test.fidl;l=30)*

<table>
    <tr><th>Field</th><th>Type</th><th>Description</th><th>Default</th></tr>
        <tr id="StructWithNullableRequest.val">
            <td><code>val</code></td>
            <td>
                <code>server_end&lt;<a class='link' href='#SimpleProtocol'>SimpleProtocol</a>&gt;?</code>
            </td>
            <td></td>
            <td>No default</td>
        </tr>
</table>

### StructWithNullableString  {#StructWithNullableString data-text="StructWithNullableString"}
*Defined in [test.nullable/nullable.test.fidl](https://cs.opensource.google/fuchsia/fuchsia/+/main:tools/fidl/fidlc/testdata/nullable.test.fidl;l=5)*

<table>
    <tr><th>Field</th><th>Type</th><th>Description</th><th>Default</th></tr>
        <tr id="StructWithNullableString.val">
            <td><code>val</code></td>
            <td>
                <code>string?</code>
            </td>
            <td></td>
            <td>No default</td>
        </tr>
</table>

### StructWithNullableStruct  {#StructWithNullableStruct data-text="StructWithNullableStruct"}
*Defined in [test.nullable/nullable.test.fidl](https://cs.opensource.google/fuchsia/fuchsia/+/main:tools/fidl/fidlc/testdata/nullable.test.fidl;l=38)*

<table>
    <tr><th>Field</th><th>Type</th><th>Description</th><th>Default</th></tr>
        <tr id="StructWithNullableStruct.val">
            <td><code>val</code></td>
            <td>
                <code><a class='link' href='#Int32Wrapper'>Int32Wrapper</a>?</code>
            </td>
            <td></td>
            <td>No default</td>
        </tr>
</table>

### StructWithNullableUnion  {#StructWithNullableUnion data-text="StructWithNullableUnion"}
*Defined in [test.nullable/nullable.test.fidl](https://cs.opensource.google/fuchsia/fuchsia/+/main:tools/fidl/fidlc/testdata/nullable.test.fidl;l=47)*

<table>
    <tr><th>Field</th><th>Type</th><th>Description</th><th>Default</th></tr>
        <tr id="StructWithNullableUnion.val">
            <td><code>val</code></td>
            <td>
                <code><a class='link' href='#SimpleUnion'>SimpleUnion</a>?</code>
            </td>
            <td></td>
            <td>No default</td>
        </tr>
</table>

### StructWithNullableVector  {#StructWithNullableVector data-text="StructWithNullableVector"}
*Defined in [test.nullable/nullable.test.fidl](https://cs.opensource.google/fuchsia/fuchsia/+/main:tools/fidl/fidlc/testdata/nullable.test.fidl;l=9)*

<table>
    <tr><th>Field</th><th>Type</th><th>Description</th><th>Default</th></tr>
        <tr id="StructWithNullableVector.val">
            <td><code>val</code></td>
            <td>
                <code>vector&lt;int32&gt;?</code>
            </td>
            <td></td>
            <td>No default</td>
        </tr>
</table>




## **UNIONS**

### SimpleUnion [strict](/fuchsia-src/reference/fidl/language/language.md#strict-vs-flexible){:.fidl-attribute}  {#SimpleUnion data-text="SimpleUnion"}
*Defined in [test.nullable/nullable.test.fidl](https://cs.opensource.google/fuchsia/fuchsia/+/main:tools/fidl/fidlc/testdata/nullable.test.fidl;l=42)*
<table>
    <tr><th>Ordinal</th><th>Variant</th><th>Type</th><th>Description</th></tr>
        <tr id="SimpleUnion.a">
<td><h3 id="SimpleUnion.a" class="add-link hide-from-toc">1</h3></td>
            <td><code>a</code></td>
            <td>
                <code>int32</code>
            </td>
            <td></td>
        </tr>
        <tr id="SimpleUnion.b">
<td><h3 id="SimpleUnion.b" class="add-link hide-from-toc">2</h3></td>
            <td><code>b</code></td>
            <td>
                <code>float32</code>
            </td>
            <td></td>
        </tr>
</table>