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authorJeremy Evans <>2019-09-21 09:03:36 -0700
committerJeremy Evans <>2019-09-25 12:33:52 -0700
commit3b302ea8c95d34d5ef072d7e3b326f28a611e479 (patch)
tree5a0a5cadb3511d6a3ecf4f234abffecafbeec9d8 /ext
parent80b5a0ff2a7709367178f29d4ebe1c54122b1c27 (diff)
Add Module#ruby2_keywords for passing keywords through regular argument splats
This approach uses a flag bit on the final hash object in the regular splat, as opposed to a previous approach that used a VM frame flag. The hash flag approach is less invasive, and handles some cases that the VM frame flag approach does not, such as saving the argument splat array and splatting it later: ruby2_keywords def foo(*args) @args = args bar end def bar baz(*@args) end def baz(*args, **kw) [args, kw] end foo(a:1) #=> [[], {a: 1}] foo({a: 1}, **{}) #=> [[{a: 1}], {}] foo({a: 1}) #=> 2.7: [[], {a: 1}] # and warning foo({a: 1}) #=> 3.0: [[{a: 1}], {}] It doesn't handle some cases that the VM frame flag handles, such as when the final hash object is replaced using Hash#merge, but those cases are probably less common and are unlikely to properly support keyword argument separation. Use ruby2_keywords to handle argument delegation in the delegate library.
Notes: Merged:
Diffstat (limited to 'ext')
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