diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/core/macros.nim | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/lib/core/macros.nim b/lib/core/macros.nim index 6f4d75b9b..4598fa9ea 100644 --- a/lib/core/macros.nim +++ b/lib/core/macros.nim @@ -333,9 +333,11 @@ proc nestList*(theProc: TNimrodIdent, ## ``[a, b, c]`` is transformed into ``theProc(a, theProc(c, d))``. var L = x.len result = newCall(theProc, x[L-2], x[L-1]) - var a = result for i in countdown(L-3, 0): - a = newCall(theProc, x[i], copyNimTree(a)) + # XXX the 'copyNimTree' here is necessary due to a bug in the evaluation + # engine that would otherwise create an endless loop here. :-( + # This could easily user code and so should be fixed in evals.nim somehow. + result = newCall(theProc, x[i], copyNimTree(result)) proc treeRepr*(n: PNimrodNode): string {.compileTime.} = ## Convert the AST `n` to a human-readable tree-like string. |