From c949b81efdeb08b38224e1678ad140b7b7663b15 Mon Sep 17 00:00:00 2001
From: cooldome <cdome@bk.ru>
Date: Thu, 2 Jan 2020 22:27:37 +0000
Subject: [PATCH] remove default argument for readLines (#12807) [backport]

---
 compiler/vmops.nim    | 2 +-
 lib/system/io.nim     | 6 +++---
 tests/vm/tfile_rw.nim | 2 +-
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/compiler/vmops.nim b/compiler/vmops.nim
index 1e3a258f3111..79c26dd5f322 100644
--- a/compiler/vmops.nim
+++ b/compiler/vmops.nim
@@ -147,7 +147,7 @@ proc registerAdditionalOps*(c: PCtx) =
     wrap1s(fileExists, osop)
     wrapDangerous(writeFile, ioop)
     wrap1s(readFile, ioop)
-    wrap2si(readLines, ioop)
+    wrap2si(staticReadLines, ioop)
     systemop getCurrentExceptionMsg
     systemop getCurrentException
     registerCallback c, "stdlib.*.staticWalkDir", proc (a: VmArgs) {.nimcall.} =
diff --git a/lib/system/io.nim b/lib/system/io.nim
index ead8deb24676..e961b1bb244e 100644
--- a/lib/system/io.nim
+++ b/lib/system/io.nim
@@ -696,10 +696,10 @@ proc writeFile*(filename: string, content: openArray[byte]) {.since: (1, 1).} =
   else:
     raise newException(IOError, "cannot open: " & filename)
 
-proc readLines*(filename: string, n = 1.Natural): seq[TaintedString] =
-  ## read `n` lines from the file named `filename`. Raises an IO exception
+proc staticReadLines*(filename: string, n: Natural): seq[TaintedString] =
+  ## Compile time read `n` lines from the file named `filename`. Raises an IO exception
   ## in case of an error. Raises EOF if file does not contain at least `n` lines.
-  ## Available at compile time. A line of text may be delimited by ``LF`` or ``CRLF``.
+  ## A line of text may be delimited by ``LF`` or ``CRLF``.
   ## The newline character(s) are not part of the returned strings.
   var f: File
   if open(f, filename):
diff --git a/tests/vm/tfile_rw.nim b/tests/vm/tfile_rw.nim
index 8d7a2ca95ddf..75242794c06e 100644
--- a/tests/vm/tfile_rw.nim
+++ b/tests/vm/tfile_rw.nim
@@ -13,7 +13,7 @@ static:
   writeFile(filename, mytext)
 const myfile_str = staticRead(filename)
 const myfile_str2 = readFile(filename)
-const myfile_str_seq = readLines(filename, 3)
+const myfile_str_seq = staticReadLines(filename, 3)
 
 static:
   doAssert myfile_str == mytext