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3754 :: PoC : convert existing C++ library (classes) to shared/static library using nim

• gummybears (orginal) [2018-04-15T00:29:52+02:00] view original

  Hi,

  I am investigating whether or not nim can be used to rewrite an existing C++ library to nim. Ideally I want to do the conversion per C++ class and produces an object file which I add to a static library and can test.

  Example (vector.nim)

  
  type Vector = ref object of RootObj
    x: float
    y: float
  Run

  So using nim, produces an object file vector.o in nimcache. Ideally I want to specify where to put the object file via the -o option, but that does not work

  
  $ nim c --noMain --noLinking  vector.nim
  Run

  The purpose of all of this, I have written a sort of compiler (actually transpiler written in Crystal) which takes my language and transpiles it to C++ which will be linked with my C++ shared library but parts of the library are written by others (open source) but are a mess and difficult to rewrite in C++. Perhaps nim could be of some help here.

  Version nim: Nim Compiler Version 0.18.0 [Linux: amd64] Copyright (c) 2006-2018 by Andreas Rumpf

  git hash: 855956bf617f68ac0be3717329e9e1181e5dc0c6

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• Araq (orginal) [2018-04-15T00:53:15+02:00] view original

  Invoking the Nim compiler for single files with --noMain --noLinking will not work well. Instead let the compiler do its job and invoke it for a full Nim project.

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