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
• Support for Apple Silicon / M1 nim-lang/Nim#16211 (comment)

• 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: nim-lang#16211 (comment)

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 import foo {.all.}: import private symbols nim-lang/Nim#17706), requires >= 1.5.1
• cast[noSideEffect], otherwise stdlib can't use those
• bugfix for {.since.} doesn't work for bootstrap nim, nor 1.0.0, breaking valid code nim-lang/Nim#16646
• bugfix for bootstrap: Error: internal error: environment misses: s #521
• requires >= 1.4.0: cleanup remove all instances of: raises: [Defect] by timotheecour · Pull Request #16724 · nim-lang/Nim
• querySetting(nimcacheDir)

• Remove confusing <//> by xflywind · Pull Request #15307 · nim-lang/Nim => <//> needed until 1.0.0 IIRC ? => done via Remove confusing <//> nim-lang/Nim#17830

[timotheecour]

• importc let without initialization (since Allow let to not have value when using importc nim-lang/Nim#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 nim-lang#17468

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

proc bar*() = discard