Vitaly, Tom Are you there? I'd love to hear from you about this. Thanks Simon PS: I am leaving Microsoft at the end of November 2021, at which point simonpj@microsoft.com<mailto:simonpj@microsoft.com> will cease to work. Use simon.peytonjones@gmail.com<mailto:simon.peytonjones@gmail.com> instead. (For now, it just forwards to simonpj@microsoft.com.) From: Simon Peyton Jones <simonpj@microsoft.com> Sent: 15 September 2021 13:00 To: ghc-steering-committee@haskell.org Cc: Simon Peyton Jones <simonpj@microsoft.com> Subject: RE: [ghc-steering-committee] Proposal #302: Multiway lambda: new extension or not? Vitaly, Eric, Tom, Alejandro As Joachim says, we need to make a decision on the LambdaCase flag issue. It's a judgement call, so let's just vote. Here is the voting sheet<https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdocs.google.com%2Fdocument%2Fd%2F1NDXk5kKcLtkqhkSNESAC9jVrBn3yqS_Qe1vacAIKnDs%2Fedit%3Fusp%3Dsharing&data=04%7C01%7Csimonpj%40microsoft.com%7Cb511339e197947e7541d08d9784067da%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C637673040277542395%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=jzU6mlExltnKz2q0FPK%2Bm5wTCqXANQJMD7cmJESk85Q%3D&reserved=0>. I have filled in votes from Simon, myself, Joacim, Richard, Vlad. But four of us (in the to: line) have not expressed an opinion. Could you do so please, in the next day or two? It should take you 5 minutes. Thanks Simon PS: I am leaving Microsoft at the end of November 2021, at which point simonpj@microsoft.com<mailto:simonpj@microsoft.com> will cease to work. Use simon.peytonjones@gmail.com<mailto:simon.peytonjones@gmail.com> instead. (For now, it just forwards to simonpj@microsoft.com<mailto:simonpj@microsoft.com>.) | -----Original Message----- | From: ghc-steering-committee <ghc-steering-committee- | bounces@haskell.org<mailto:bounces@haskell.org>> On Behalf Of Joachim Breitner | Sent: 14 September 2021 08:39 | To: ghc-steering-committee@haskell.org<mailto:ghc-steering-committee@haskell.org> | Subject: Re: [ghc-steering-committee] Proposal #302: Multiway lambda: | new extension or not? | | Hi, | | | on the multiway-lambda story, we have voted to add \cases alongside | \case. But one open question is still: Do we | (1) add -XLambdaCases (which would imply -XLambdaCase) or | (2) simply expand the meaning of -XLambdaCase. | | On the Github thread at | https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgith<https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fghc-proposals%2Fghc-proposals%2Fpull%2F302%23issuecomment-895080031&data=04%7C01%7Csimonpj%40microsoft.com%7Cb511339e197947e7541d08d9784067da%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C637673040277552385%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=UQfSypCiZZsQP%2Bu8DD%2BrWAl%2BbVysyXwYkwWJSrvdGH0%3D&reserved=0> | ub.com%2Fghc-proposals%2Fghc-proposals%2Fpull%2F302%23issuecomment-<https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fghc-proposals%2Fghc-proposals%2Fpull%2F302%23issuecomment-895080031&data=04%7C01%7Csimonpj%40microsoft.com%7Cb511339e197947e7541d08d9784067da%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C637673040277552385%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=UQfSypCiZZsQP%2Bu8DD%2BrWAl%2BbVysyXwYkwWJSrvdGH0%3D&reserved=0> | 895080031&data=04%7C01%7Csimonpj%40microsoft.com%7Cea35a8831943459<https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fghc-proposals%2Fghc-proposals%2Fpull%2F302%23issuecomment-895080031&data=04%7C01%7Csimonpj%40microsoft.com%7Cb511339e197947e7541d08d9784067da%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C637673040277562383%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=Fz8Ac4%2FZsxyb%2BZTVzPf4vLUrBW2aLyWkHHVk96Kl86Q%3D&reserved=0> | 9cce708d97752bd08%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C6376720<https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fghc-proposals%2Fghc-proposals%2Fpull%2F302%23issuecomment-895080031&data=04%7C01%7Csimonpj%40microsoft.com%7Cb511339e197947e7541d08d9784067da%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C637673040277572379%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=ZvWJy8VOnYChUkEu0Uz3I3i4txgrawqt06KdkKlvdts%3D&reserved=0> | 20597687362%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMz<https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fghc-proposals%2Fghc-proposals%2Fpull%2F302%23issuecomment-895080031&data=04%7C01%7Csimonpj%40microsoft.com%7Cb511339e197947e7541d08d9784067da%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C637673040277582374%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=AnU0eKL8ak%2FVQXBYaGgc972ZFJQyh1wMKyFazp%2Fgg60%3D&reserved=0> | IiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=2ySitCA%2FT1uUznezDY<https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fghc-proposals%2Fghc-proposals%2Fpull%2F302%23issuecomment-895080031&data=04%7C01%7Csimonpj%40microsoft.com%7Cb511339e197947e7541d08d9784067da%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C637673040277582374%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=AnU0eKL8ak%2FVQXBYaGgc972ZFJQyh1wMKyFazp%2Fgg60%3D&reserved=0> | UKIO8g2ImLMKlnxm1OpKOXKZg%3D&reserved=0<https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fghc-proposals%2Fghc-proposals%2Fpull%2F302%23issuecomment-895080031&data=04%7C01%7Csimonpj%40microsoft.com%7Cb511339e197947e7541d08d9784067da%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C637673040277592367%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=W9Rq1zlL1DXKExX%2B2XLVl0olo74BKhF1JuelgGySimI%3D&reserved=0> | we see that I lean towards (1), but SPJ leands towards (2). | | It doesn't matter that much, but we need to make a decision. Can I | please get some opinions from the rest of the committee on this point? | | Cheers, | Joachim | | | -- | Joachim Breitner | mail@joachim-breitner.de<mailto:mail@joachim-breitner.de> | | https://nam06.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.j<https://nam06.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.joachim-breitner.de%2F&data=04%7C01%7Csimonpj%40microsoft.com%7Cb511339e197947e7541d08d9784067da%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C637673040277602365%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=Dlo%2FKTIzbaLYOyi0%2F0rk9U7ZXoRpCMg7TQrq4g7vj9E%3D&reserved=0> | 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