newruntime: progress

lib/core/seqs.nim

@@ -145,8 +145,7 @@ proc setLen[T](s: var seq[T], newlen: Natural) =
     if newlen < s.len:
       shrink(s, newLen)
     else:
-      var v: T # get the default value of 'v'
-      grow(s, newLen, v)
+      grow(s, newLen, default(T))
 
 when false:
   proc resize[T](s: var NimSeqV2[T]) =

lib/system.nim

@@ -1706,6 +1706,10 @@ proc `@`* [IDX, T](a: array[IDX, T]): seq[T] {.
   ##   echo @a # => @[1, 3, 5]
   ##   echo @b # => @['f', 'o', 'o']
 
+when defined(nimHasDefault):
+  proc default*(T: typedesc): T {.magic: "Default", noSideEffect.}
+    ## returns the default value of the type ``T``.
+
 proc setLen*[T](s: var seq[T], newlen: Natural) {.
   magic: "SetLengthSeq", noSideEffect.}
   ## Sets the length of seq `s` to `newlen`. ``T`` may be any sequence type.
@@ -4400,10 +4404,6 @@ when defined(genode):
         # and return to thread entrypoint.
 
 
-when defined(nimHasDefault):
-  proc default*(T: typedesc): T {.magic: "Default", noSideEffect.}
-    ## returns the default value of the type ``T``.
-
 import system/widestrs
 export widestrs