Support keywords in invokelatest (#424)

README.md

@@ -151,6 +151,8 @@ Currently, the `@compat` macro supports the following syntaxes:
   but works in Julia 0.5+, and allows you to guarantee that a function call
   invokes the latest version of a function ([#19784]).
 
+* `Compat.invokelatest` supports keywords ([#22646]).
+
 * `Compat.StringVector` is supported on 0.5 and below. On 0.6 and later, it aliases `Base.StringVector`. This function allocates a `Vector{UInt8}` whose data can be made into a `String` in constant time; that is, without copying. On 0.5 and later, use `String(...)` with the vector allocated by `StringVector` as an argument to create a string without copying. Note that if 0.4 support is needed, `Compat.UTF8String(...)` should be used instead. ([#19449])
 
 * `==(::Period, ::Period)` and `isless(::Period, ::Period)` is supported for 0.5 and below. Earlier versions of Julia only supported limited comparison methods between Periods which did not support comparing custom Period subtypes. ([#21378])
@@ -356,6 +358,7 @@ includes this fix. Find the minimum version from there.
 [#22512]: https://github.com/JuliaLang/julia/issues/22512
 [#22629]: https://github.com/JuliaLang/julia/issues/22629
 [#22633]: https://github.com/JuliaLang/julia/issues/22633
+[#22646]: https://github.com/JuliaLang/julia/issues/22646
 [#22666]: https://github.com/JuliaLang/julia/issues/22666
 [#22751]: https://github.com/JuliaLang/julia/issues/22751
 [#22761]: https://github.com/JuliaLang/julia/issues/22761

src/Compat.jl

@@ -490,10 +490,20 @@ end
 
 # https://github.com/JuliaLang/julia/pull/19784
 @static if isdefined(Base, :invokelatest)
-    # 0.6
-    import Base.invokelatest
+    # https://github.com/JuliaLang/julia/pull/22646
+    if VERSION < v"0.7.0-DEV.1139"
+        function invokelatest(f, args...; kwargs...)
+            inner() = f(args...; kwargs...)
+            Base.invokelatest(inner)
+        end
+    else
+        import Base.invokelatest
+    end
 else
-    invokelatest(f, args...) = eval(current_module(), Expr(:call, f, map(QuoteNode, args)...))
+    function invokelatest(f, args...; kwargs...)
+        kw = [Expr(:kw, k, QuoteNode(v)) for (k, v) in kwargs]
+        eval(current_module(), Expr(:call, f, map(QuoteNode, args)..., kw...))
+    end
 end
 
 # https://github.com/JuliaLang/julia/pull/21257

test/runtests.jl

@@ -652,6 +652,14 @@ end
 cm359() = @__MODULE__
 @test Compat.invokelatest(cm359) === @__MODULE__
 
+pr22646(x; y=0) = 1
+let foo() = begin
+        eval(:(pr22646(x::Int; y=0) = 2))
+        return Compat.invokelatest(pr22646, 0, y=1)
+    end
+    @test foo() == 2
+end
+
 # PR 21378
 let
     import Compat: Dates