csources2

[timotheecour]

links

• [WIP] fix #11457 csources2 revision is now version-controlled so we can keep updating boostrap nim version by timotheecour · Pull Request #13854 · nim-lang/Nim
• https://github.com/nim-lang/Nim/issues/16211#issuecomment-738332770
• [x] CIs: attempt to use csources_v1 by Araq · Pull Request #16282 · nim-lang/Nim
• https://github.com/nim-lang/csources.git
• https://github.com/nim-lang/csources_v1.git

features needed during bootstrap

arguments in reply to: https://github.com/nim-lang/Nim/issues/16211#issuecomment-738337224

That's not an answer, that is avoiding an answer. Which language features past 1.0 are useful inside the Nim compiler? Again, library additions don't count, we can use pretty much all of them.

• import {.all.} (since https://github.com/nim-lang/Nim/pull/17706), requires >= 1.5.1
• cast[noSideEffect], otherwise stdlib can't use those
• bugfix for https://github.com/nim-lang/Nim/issues/16646
• bugfix for https://github.com/timotheecour/Nim/issues/521
• requires >= 1.4.0: cleanup remove all instances of: raises: [Defect] by timotheecour · Pull Request #16724 · nim-lang/Nim
• querySetting(nimcacheDir)
• [x] Remove confusing <//> by xflywind · Pull Request #15307 · nim-lang/Nim => <//> needed until 1.0.0 IIRC ? => done via https://github.com/nim-lang/Nim/pull/17830

[timotheecour]

• [x] importc let without initialization (since https://github.com/nim-lang/Nim/pull/14258, ie 1.4.0)

  const nimHasImportcLet = compiles(block:
  let foo {.nodecl, importc.}: cint) # xxx move, and replace with `nimVersionCT`
  # pending bootstrap >= https://github.com/nim-lang/Nim/pull/14258, remove this

[timotheecour]

• [ ] runnableExamples("-r:off") requires nim >= 1.4.0 to work properly, eg:

nim c main gives: Error: undeclared identifier: 'bar' for nim 1.2 (and bin/nim_csources_a8a5241f9475099c823cfe1a5e0ca4022ac201ff), but works with 1.4; this caused me to use a workaround (if false) in https://github.com/nim-lang/Nim/pull/17468

proc foo*[T](a: T) =
  runnableExamples("-r:off"):
    bar()
  discard

proc bar*() = discard