remove Nim 1.2 and 1.4 support

.github/workflows/ci.yml

@@ -22,7 +22,7 @@ jobs:
             cpu: amd64
           #- os: windows
             #cpu: i386
-        branch: [version-1-2, version-1-4, version-1-6, version-2-0, devel]
+        branch: [version-1-6, version-2-0, devel]
         include:
           - target:
               os: linux

stint.nimble

@@ -7,21 +7,16 @@ skipDirs      = @["tests", "benchmarks"]
 ### Dependencies
 
 # TODO test only requirements don't work: https://github.com/nim-lang/nimble/issues/482
-requires "nim >= 1.2.0",
+requires "nim >= 1.6.0",
          "stew"
  #, "https://github.com/alehander42/nim-quicktest >= 0.18.0", "https://github.com/status-im/nim-ttmath"
 
 proc test(args, path: string) =
   if not dirExists "build":
     mkDir "build"
-  let styleCheckStyle =
-    if (NimMajor, NimMinor) < (1, 6):
-      "hint"
-    else:
-      "error"
   exec "nim " & getEnv("TEST_LANG", "c") & " " & getEnv("NIMFLAGS") & " " & args &
     " --outdir:build -r --hints:off --warnings:off --skipParentCfg" &
-    " --styleCheck:usages --styleCheck:" & styleCheckStyle & " " & path
+    " --styleCheck:usages --styleCheck:error " & path
   if (NimMajor, NimMinor) > (1, 6):
     exec "nim " & getEnv("TEST_LANG", "c") & " " & getEnv("NIMFLAGS") & " " & args &
       " --outdir:build -r --mm:refc --hints:off --warnings:off --skipParentCfg" &

stint/private/int_addsub.nim

@@ -1,5 +1,5 @@
 # Stint
-# Copyright 2018 Status Research & Development GmbH
+# Copyright 2018-2023 Status Research & Development GmbH
 # Licensed under either of
 #
 #  * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or http://www.apache.org/licenses/LICENSE-2.0)
@@ -11,9 +11,6 @@ import
   ./datatypes, ./conversion, ./int_comparison,
   ./uint_addsub, ./uint_comparison
 
-# TODO remove when stint removes Nim 1.2 support
-import stew/shims/stddefects
-
 func `+`*(x, y: IntImpl): IntImpl {.inline.}=
   # Addition for multi-precision signed int.
   type SubTy = type x.hi

stint/private/uint_div.nim

@@ -1,5 +1,5 @@
 # Stint
-# Copyright 2018 Status Research & Development GmbH
+# Copyright 2018-2023 Status Research & Development GmbH
 # Licensed under either of
 #
 #  * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or http://www.apache.org/licenses/LICENSE-2.0)
@@ -229,9 +229,6 @@ func divmodBS(x, y: UintImpl, q, r: var UintImpl) =
 const BinaryShiftThreshold = 8  # If the difference in bit-length is below 8
                                 # binary shift is probably faster
 
-# TODO remove when stint removes Nim 1.2 support
-import stew/shims/stddefects
-
 func divmod*[T](x, y: UintImpl[T]): tuple[quot, rem: UintImpl[T]]=
 
   let x_clz = x.leadingZeros

tests/test_io.nim

@@ -179,9 +179,8 @@ template testIO(chk, tst: untyped) =
       nativeStuint(chk, low(uint), 32)
       nativeStuint(chk, high(int), 32)
     else:
-      when (NimMajor, NimMinor, NimPatch) >= (1, 0, 0):
-        nativeStuint(chk, high(uint), 64)
-        nativeStuint(chk, low(uint), 64)
+      nativeStuint(chk, high(uint), 64)
+      nativeStuint(chk, low(uint), 64)
       nativeStuint(chk, high(int), 64)
 
     nativeStuint(chk, 0, 128)