How Can I Efficiently Find Go Types Implementing a Specific Interface?

How to Discover Types that Implement Specific Interfaces in Go

Determining which types in the Go standard library implement a particular interface is a common need, but it may not be immediately apparent how to achieve this. While experience can certainly help, there are a few techniques that can make this discovery process more efficient.

One method is to utilize the egrep command. By searching for the interface method signature within the standard library source code, it is possible to identify the types that implement it. For instance, using the egrep command to search for the ReadByte() method can produce a list of matching types, as seen in the example provided.

<br>egrep -nr '^func (.<em>) ReadByte(' </em><br>

Another useful tool for this task is the golang.org website. The website offers a case-sensitive search functionality that allows developers to narrow down their search results based on specific method names or interface types. By leveraging the search box on the website, it is possible to identify the types that implement the desired interface.

While experience plays a significant role in understanding the Go standard library, these techniques provide additional methods for discovering which types implement a particular interface, making it a more straightforward process.

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