“Surround with…” comes to Kotlin.md

title	date	author	tags	keywords	categories	reward	reward_title	reward_wechat	reward_alipay	source_url
“Surround with…” comes to Kotlin	2013-02-26 01:20:00 -0800	Natalia Ukhorskaya			官方动态	false	Have a nice Kotlin!			https://blog.jetbrains.com/kotlin/2013/02/surround-with-comes-to-kotlin/

Great news for fans of Intellij IDEA: “Surroud with…” action is now available for Kotlin!

What is the “Surround with…” action?

This action allows you to surround a block of code with if, try or other statements (see the full list bellow). Simply select a block of code, press Ctrl + Alt + T and choose the template (Cmd + Alt + T for Mac):

{% raw %}

{% endraw %}

The IDE will add the neccessary code and put the caret at the position that allows you to finish your refactoring:

{% raw %}

{% endraw %}

If the surrounded block contains variable declarations that are used after the block, they will be moved out of the block:

{% raw %}

{% endraw %}

{% raw %}

{% endraw %}

{% raw %}

<iframe allowfullscreen="true" class="youtube-player" height="390" src="https://www.youtube.com/embed/Bwuj15P8yOQ?version=3&rel=1&fs=1&autohide=2&showsearch=0&showinfo=1&iv_load_policy=1&wmode=transparent" style="border:0;" type="text/html" width="640"></iframe>

{% endraw %}

Function Literal Template

You can surround a block of code like this:

{% raw %}

{% endraw %}

Use this template if you want to “hide” some variables in the scope of the block, to create a property with function type or a local function and if you want to call any function with function literal as an argument.

{% raw %}

<iframe allowfullscreen="true" class="youtube-player" height="390" src="https://www.youtube.com/embed/ufSDvAxo544?version=3&rel=1&fs=1&autohide=2&showsearch=0&showinfo=1&iv_load_policy=1&wmode=transparent" style="border:0;" type="text/html" width="640"></iframe>

{% endraw %}

When template

You don’t need to write when expression by hand any more: you can simply select a subject expression, choose “surround with when(expr) {}” and the result will be:

{% raw %}

{% endraw %}

Full list of  “Surround with…” templates

When a block of code is selected:

• if
• if / else
• { }                       – function literal
• try
• try / catch
• try / catch / finally

When an expression is selected:

• !(expr)                – add negation for Boolean
• (expr)                 – surround with parentheses
• “${expr}”           – surround with quotes
• when(expr) {}

Kotlin M5.1

We release “Surround with…” as a part of Kotlin M5.1 that will be out very soon.