Rest of untyped binding pattern is { [s: string]: any } - #12564
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Nathan Shively-Sanders (sandersn) merged 8 commits intoDec 1, 2016
Merged
Rest of untyped binding pattern is { [s: string]: any }#12564Nathan Shively-Sanders (sandersn) merged 8 commits into
Nathan Shively-Sanders (sandersn) merged 8 commits into
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This is more correct than any and the code is more elegant as well.
Nathan Shively-Sanders (sandersn)
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| var { [computed]: stillNotGreat, [computed2]: soSo, ...o } = o; | ||
| ({ [computed]: stillNotGreat, [computed2]: soSo, ...o } = o); | ||
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| var noContextualType = ({ aNumber = 12, ...notEmptyObject }) => aNumber; |
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can you add a test where notEmptyObject.somePropoerty is used, to make sure we get an error if the behavior changes, instead of just the type-baseline changes.
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also can you add a test for --noImplicitAny error for this case.
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Wait—actually this doesn't allow arbitrary access to properties, just indexed access.
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OK, so I added back the special case. Which makes the two tests you asked for pass.
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I think this looks much better. |
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Anders Hejlsberg (@ahejlsberg) any comments? |
Nathan Shively-Sanders (sandersn)
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Nathan Shively-Sanders (sandersn)
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Mohamed Hegazy (mhegazy)
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Dec 1, 2016
Nathan Shively-Sanders (sandersn)
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December 1, 2016 01:39
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Fixes #12519
Edit:
Mohamed Hegazy (@mhegazy) pointed out that (1) rest of an untyped binding pattern isn't really any since it's definitely not a function (2) adding an index signature results in a more straightforward fix. So the current version adds an index signature to the structurally inferred type of an untyped binding pattern.