Get values of symbols inside a function

[ChrisRackauckas]

@mike

No idea, one of our compiler gurus would need to answer that one

I moved this discussion out to a thread in the development category.

Value type dispatch on constants

This is best explained by an example. type Test x::Vector{Float64} end import Base: getindex getindex(s::Test,sym::Symbol) = getindex(s,Val{sym}) getindex(s::Test,::Type{Val{:test_sym}}) = reshape(view(s.x,1:9),3,3) function test_dispatch(s) s[:test_sym] end function test_dispatch2(s) s[Val{:test_sym}] end s = Test(collect(1:10)) @code_llvm test_dispatch(s) @code_llvm test_dispatch2(s) The first gives ; Function Attrs: uwtable define %jl_value_t* @julia_test_dispatch_63361(%jl_valu…