---
title: "Discussion on \"Decompiling extension methods: the [Extension] attribute is the only trace, the receiver was just the first argument, and the call that looks static\" | Hashnode"
description: "Discussion on \"Decompiling extension methods: the [Extension] attribute is the only trace, the receiver was just the first argument, and the call that looks static\". An extension method is one of the purest examples of C# sugar that evaporates in IL. You write this on the first parameter, call it as text.WordCount(), and feel like you added a method to string. The"
url: "https://hashnode.com/posts/decompiling-extension-methods-the-extension-attribute-is-the-only-trace-the-receiver-was-just-the-fi-mwaxzw77/6af34f28af6dce6d527f00dc"
---

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# [Decompiling extension methods: the \[Extension\] attribute is the only trace, the receiver was just the first argument, and the call that looks static](https://delta1labs.hashnode.dev/decompiling-extension-methods-the-extension-attribute-is-the-only-trace-the-receiver-was-just-the-fi-mwaxzw77?utm_source=hashnode&utm_medium=feed)

An extension method is one of the purest examples of C# sugar that evaporates in IL. You write this on the first parameter, call it as text.WordCount(), and feel like you added a method to string. The

1d ago · 8 min read · delta1labs.hashnode.dev  
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