add method to getindex for [:] on tuple

[jessebett]

Solves #27461 ?

[ChrisRackauckas]

Why not getindex(t::Tuple, c::Colon) = t?

[jessebett]

oh... yeah that would be better...
I got a little too excited

[fredrikekre]

Would be great if you could add a couple of simple unit test cases for this, for example here:

julia/test/tuple.jl

Lines 112 to 147 in 91d2071

	@testset "indexing" begin
	@test getindex((1,), 1) === 1
	@test getindex((1,2), 2) === 2
	@test_throws BoundsError getindex((), 1)
	@test_throws BoundsError getindex((1,2), 0)
	@test_throws BoundsError getindex((1,2), -1)
	@test getindex((1,), 1.0) === 1
	@test getindex((1,2), 2.0) === 2
	@test_throws BoundsError getindex((), 1.0)
	@test_throws BoundsError getindex((1,2), 0.0)
	@test_throws BoundsError getindex((1,2), -1.0)
	@test getindex((5,6,7,8), [1,2,3]) === (5,6,7)
	@test_throws BoundsError getindex((1,2), [3,4])
	@test getindex((5,6,7,8), [true, false, false, true]) === (5,8)
	@test_throws BoundsError getindex((5,6,7,8), [true, false, false, true, true])
	@test getindex((5,6,7,8), []) === ()
	@testset "boolean arrays" begin
	# issue #19719
	@test_throws BoundsError (1,2,3)[falses(4)]
	@test_throws BoundsError (1,2,3)[[false,false,true,true]]
	@test_throws BoundsError (1,2,3)[trues(2)]
	@test_throws BoundsError (1,2,3)[falses(2)]
	@test_throws BoundsError ()[[false]]
	@test_throws BoundsError ()[[true]]
	end
	@testset "Multidimensional indexing (issue #20453)" begin
	@test_throws MethodError (1,)[]
	@test_throws MethodError (1,1,1)[1,1]
	end
	end

[jessebett]

Thanks for pointing me to those @fredrikekre, added a couple tests!