Weird function names in profile. Is this a bug or a feature?

[tim-we]

I'm quite new to performance profiling. In a recently captured profile I noticed weird function names that are not present in the source files. Is this a bug (possibly related to eval) or do these /< characters have some special meaning?

[julienw]

Thanks for your question!
These /< mean it's an anonymous function defined in that function. We use the same semantics than in JavaScript stacks. I think this is specified by JavaScript but I'm not so sure.

[tim-we]

Good to know. I'm still a bit confused by the syntax (for example possibleMatch is a local variable and not a function). Perhaps there is a better way to display anonymous function. Anyway, thanks for letting me know ;)