| 1 | # These were helpful while implementing args.ysh
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| 2 | # Maybe we will want to export them in a prelude so that others can use them too?
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| 3 | #
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| 4 | # Prior art: Rust has `todo!()` which is quite nice. Other languages allow
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| 5 | # users to `raise NotImplmentedError()`.
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| 6 |
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| 7 | # Andy comments:
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| 8 | # - 'pass' can be : or true in shell. It's a little obscure / confusing, but
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| 9 | # there is an argument for minimalism. Although I prefer words like 'true',
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| 10 | # and that already means something.
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| 11 | # - UPDATE: we once took 'pass' as a keyword, but users complained because
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| 12 | # there is a command 'pass'. So we probably can't have this by default.
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| 13 | # Need to discuss source --builtin.
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| 14 |
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| 15 | # - todo could be more static? Rust presumably does it at compile time
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| 16 |
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| 17 | proc todo () {
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| 18 | ## Raises a not implemented error when run.
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| 19 | error ("TODO: not implemented") # TODO: is error code 1 ok?
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| 20 | }
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| 21 |
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| 22 | proc pass () {
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| 23 | ## Use when you want to temporarily leave a block empty.
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| 24 | _ null
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| 25 | }
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