How Can I Find Types Implementing a Specific Interface in the Go Standard Library?

Finding Implementing Types of an Interface in the Go Standard Library

When navigating the Go standard library, determining which types implement a specific interface can be challenging. While experience often guides such discoveries, there are additional methods available.

One approach is to leverage regular expressions. As seen in the example provided, using the egrep command with the -nr option can search through the source code for functions that match the interface's method signature. In the given case, the command egrep -nr '^func (.*) ReadByte(' identifies types in the standard library that implement the ReadByte method, as defined in the io.ByteReader interface.

Additionally, the official Go website offers a case-sensitive search functionality. This allows for precise queries within the library's documentation.

By combining experience with these techniques, developers can efficiently locate the types that satisfy a given interface in the Go standard library, facilitating the exploration and utilization of its rich features.

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