Avoid array allocation for f(*empty_ary, **hash) when def f(x)

This avoids an array allocation when calling a method that does
not accept a positional splat or keywords with both a positional
splat and keywords.  Previously, Ruby would dup the positional
splat to append the keyword splat to it. Then it would flatten
the dupped positional splat array to the VM stack.

This flattens the given positional splat to the VM stack, then
adds the keyword splat hash after the last positional splat
element on the VM stack, avoiding the need to modify
the positional splat array.

0 files changed, 0 insertions, 0 deletions