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by ternaryoperator 88 days ago
It does not exist in Java. Comments in Java do not change code.
2 comments
9rx 87 days ago
It doesn't exist in Go either. https://go.dev/ref/spec

That's why you find it in the comments. That is where tools have found a place to add their own syntax without breaking the Go code.

Absolutely you can do the same in Java. It exists to the exact same degree as it does in Go. I expect it isn't done as often in the Java world because it is much harder to parse Java code so the tools don't get built.

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joshuamorton 88 days ago
This also does not change th code. It is an advertisement to a linter-loke tool to take some action on the source code. Its most similar to linter directives which usually are comments.
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TheDong 87 days ago
We're talking about the "//go" comments in general I think here.

Things like "//go:embed" and "//go:build" very much do change the semantics of source code.

The comments above 'import "C"' containing C function definitions and imports change the compilation of go source code.

The "//go" comments contain a mix of ones that must be respected to compile, to being optional, to being entirely ignorable (like generate and fix).

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