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-rw-r--r--compiler/ast.nim2
1 files changed, 2 insertions, 0 deletions
diff --git a/compiler/ast.nim b/compiler/ast.nim
index 00fe3b246..ae1b34fd9 100644
--- a/compiler/ast.nim
+++ b/compiler/ast.nim
@@ -435,6 +435,8 @@ type
     tfUnresolved,     # marks unresolved typedesc/static params: e.g.
                       # proc foo(T: typedesc, list: seq[T]): var T
                       # proc foo(L: static[int]): array[L, int]
+                      # can be attached to ranges to indicate that the range
+                      # depends on unresolved static params.
     tfRetType,        # marks return types in proc (used to detect type classes 
                       # used as return types for return type inference)
     tfCapturesEnv,    # whether proc really captures some environment