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Editorial: Use IsCallable abstract op #1529

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commented May 8, 2019

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@ljharb ljharb requested review from ljharb, zenparsing and tc39/ecma262-editors May 8, 2019


ljharb approved these changes May 8, 2019

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@shvaikalesh shvaikalesh force-pushed the shvaikalesh:is-callable branch from e053a6a to 16af531 May 8, 2019


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commented May 8, 2019

Apart from IsCallable (55 references), there are couple more abstract ops that always return normal completion and are implicitly unpacked:

I agree that explicitly unwrapping these operations benefits readability: there are a few Is* helpers that yield abrupt completions (IsArray, IsExtensible, IsRegExp), so a reader can't really tell by name.

Is PR welcome?


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commented May 8, 2019

Yes, a separate PR for that would be great.

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