#Why isn't intellij suggesting to replace a lambda expression with method reference?

16 messages · Page 1 of 1 (latest)

crimson timber
earnest furnaceBOT
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crimson timber
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Even thought it's valid syntax to use the method reference, i just don't get why it's not suggesting for line 1 to use a method reference like line 2

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Line 1 and 2 do the exact same thing, only 2 uses the method reference and 1 is just a normal lambda

random frost
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Are there 2 hasPermissions?

crimson timber
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There's only 1 hasPermission function, and it takes 1 parameter which takes the same type as source

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the where function is defined as <T> Linq<E> where(T param, BiFunction<E, T> func), the extra T parameter is only there as a tiny micro optimisation so that a lambda class isn't allocated in order to capture source

crimson timber
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oh wait i think i figured it out...

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there was 2 but one was static

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and took a string as a 2nd parameter

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so maybe it was ambiguous enough

random frost
pallid dawn
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yes, the compiler needs proper inference in order to use a method reference, I had a discussion about this recently in another server

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The rules about inference and variance in type parameters is quite intricate