--stdout make compiler messages go to stderr

rod/commands.nim

@@ -129,14 +129,14 @@ var
 proc HelpOnError(pass: TCmdLinePass) = 
   if (pass == passCmd1) and not helpWritten: 
     # BUGFIX 19
-    MessageOut(getCommandLineDesc())
+    MsgWriteln(getCommandLineDesc())
     helpWritten = true
     quit(0)
 
 proc writeAdvancedUsage(pass: TCmdLinePass) = 
   if (pass == passCmd1) and not advHelpWritten: 
     # BUGFIX 19
-    MessageOut(`%`(HelpMessage, [VersionAsString, 
+    MsgWriteln(`%`(HelpMessage, [VersionAsString, 
                                  platform.os[platform.hostOS].name, 
                                  cpu[platform.hostCPU].name]) & AdvancedUsage)
     advHelpWritten = true
@@ -147,14 +147,14 @@ proc writeVersionInfo(pass: TCmdLinePass) =
   if (pass == passCmd1) and not versionWritten: 
     versionWritten = true
     helpWritten = true
-    messageOut(`%`(HelpMessage, [VersionAsString, 
+    MsgWriteln(`%`(HelpMessage, [VersionAsString, 
                                  platform.os[platform.hostOS].name, 
                                  cpu[platform.hostCPU].name]))
     quit(0)
 
 proc writeCommandLineUsage() = 
   if not helpWritten: 
-    messageOut(getCommandLineDesc())
+    MsgWriteln(getCommandLineDesc())
     helpWritten = true
 
 proc InvalidCmdLineOption(pass: TCmdLinePass, switch: string, info: TLineInfo) = 

rod/condsyms.nim

@@ -44,11 +44,11 @@ proc isDefined(symbol: PIdent): bool =
 proc ListSymbols() = 
   var it: TTabIter
   var s = InitTabIter(it, gSymbols)
-  MessageOut("-- List of currently defined symbols --")
+  OutWriteln("-- List of currently defined symbols --")
   while s != nil: 
-    if s.position == 1: MessageOut(s.name.s)
+    if s.position == 1: OutWriteln(s.name.s)
     s = nextIter(it, gSymbols)
-  MessageOut("-- End of list --")
+  OutWriteln("-- End of list --")
 
 proc countDefinedSymbols(): int = 
   var it: TTabIter
@@ -67,8 +67,7 @@ proc InitDefines() =
   of cpuI386: DefineSymbol("x86")
   of cpuIa64: DefineSymbol("itanium")
   of cpuAmd64: DefineSymbol("x8664")
-  else: 
+  else: nil
-    nil
   case targetOS
   of osDOS: 
     DefineSymbol("msdos")
@@ -93,8 +92,7 @@ proc InitDefines() =
     DefineSymbol("macintosh")
     DefineSymbol("unix")
     DefineSymbol("posix")
-  else: 
+  else: nil
-    nil
   DefineSymbol("cpu" & $cpu[targetCPU].bit)
   DefineSymbol(normalize(endianToStr[cpu[targetCPU].endian]))
   DefineSymbol(cpu[targetCPU].name)

rod/evals.nim

@@ -79,11 +79,11 @@ proc stackTraceAux(x: PStackFrame) =
   if x != nil:
     stackTraceAux(x.next)
     var info = if x.call != nil: x.call.info else: UnknownLineInfo()
-    messageOut(`%`("file: $1, line: $2", 
+    MsgWriteln(`%`("file: $1, line: $2", 
                    [toFilename(info), $(toLineNumber(info))]))
 
 proc stackTrace(c: PEvalContext, n: PNode, msg: TMsgKind, arg: string = "") = 
-  messageOut("stack trace: (most recent call last)")
+  MsgWriteln("stack trace: (most recent call last)")
   stackTraceAux(c.tos)
   Fatal(n.info, msg, arg)
 

rod/extccomp.nim

@@ -318,7 +318,7 @@ proc addFileToLink*(filename: string) =
   # BUGFIX: was ``appendStr``
 
 proc execExternalProgram*(cmd: string) = 
-  if (optListCmd in gGlobalOptions) or (gVerbosity > 0): MessageOut(cmd)
+  if (optListCmd in gGlobalOptions) or (gVerbosity > 0): MsgWriteln(cmd)
   if execCmd(cmd) != 0: rawMessage(errExecutionOfProgramFailed, "")
 
 proc generateScript(projectFile: string, script: PRope) = 

rod/main.nim

@@ -254,7 +254,7 @@ proc MainCommand(cmd, filename: string) =
   of wDump: 
     gCmd = cmdDump
     condsyms.ListSymbols()
-    for it in iterSearchPath(): MessageOut(it)
+    for it in iterSearchPath(): MsgWriteln(it)
   of wCheck: 
     gCmd = cmdCheck
     wantFile(filename)
@@ -267,7 +267,7 @@ proc MainCommand(cmd, filename: string) =
     gCmd = cmdScan
     wantFile(filename)
     CommandScan(filename)
-    MessageOut("Beware: Indentation tokens depend on the parser\'s state!")
+    MsgWriteln("Beware: Indentation tokens depend on the parser\'s state!")
   of wI: 
     gCmd = cmdInteractive
     CommandInteractive()

rod/msgs.nim

@@ -438,10 +438,15 @@ proc addCheckpoint*(info: TLineInfo) =
 proc addCheckpoint*(filename: string, line: int) = 
   addCheckpoint(newLineInfo(filename, line, - 1))
 
-proc MessageOut*(s: string) = 
+proc OutWriteln*(s: string) = 
-  # change only this proc to put it elsewhere
+  ## Writes to stdout. Always.
   Writeln(stdout, s)
  
+proc MsgWriteln*(s: string) = 
+  ## Writes to stdout. If --stdout option is given, writes to stderr instead.
+  if optStdout in gGlobalOptions: Writeln(stderr, s)
+  else: Writeln(stdout, s)
+
 proc coordToStr(coord: int): string = 
   if coord == -1: result = "???"
   else: result = $coord
@@ -493,7 +498,7 @@ proc writeContext(lastinfo: TLineInfo) =
   for i in countup(0, len(msgContext) - 1): 
     if not sameLineInfo(msgContext[i], lastInfo) and
         not sameLineInfo(msgContext[i], info): 
-      MessageOut(`%`(posErrorFormat, [toFilename(msgContext[i]), 
+      MsgWriteln(`%`(posErrorFormat, [toFilename(msgContext[i]), 
                                       coordToStr(msgContext[i].line), 
                                       coordToStr(msgContext[i].col), 
                                       getMessageStr(errInstantiationFrom, "")]))
@@ -515,7 +520,7 @@ proc rawMessage*(msg: TMsgKind, args: openarray[string]) =
     if not (msg in gNotes): return 
     frmt = rawHintFormat
     inc(gHintCounter)
-  MessageOut(`%`(frmt, `%`(msgKindToString(msg), args)))
+  MsgWriteln(`%`(frmt, `%`(msgKindToString(msg), args)))
   handleError(msg, doAbort)
 
 proc rawMessage*(msg: TMsgKind, arg: string) = 
@@ -545,7 +550,7 @@ proc liMessage(info: TLineInfo, msg: TMsgKind, arg: string,
     frmt = posHintFormat
     inc(gHintCounter)
   if not ignoreMsg:
-    MessageOut(frmt % [toFilename(info), coordToStr(info.line),
+    MsgWriteln(frmt % [toFilename(info), coordToStr(info.line),
                        coordToStr(info.col), getMessageStr(msg, arg)])
   handleError(msg, eh)
   

rod/nimconf.nim

@@ -1,7 +1,7 @@
 #
 #
 #           The Nimrod Compiler
-#        (c) Copyright 2008 Andreas Rumpf
+#        (c) Copyright 2011 Andreas Rumpf
 #
 #    See the file "copying.txt", included in this
 #    distribution, for details about the copyright.
@@ -139,7 +139,7 @@ proc parseDirective(L: var TLexer, tok: PToken) =
     doEnd(L, tok)
   of wWrite: 
     ppGetTok(L, tok)
-    msgs.MessageOut(tokToStr(tok))
+    msgs.MsgWriteln(tokToStr(tok))
     ppGetTok(L, tok)
   of wPutEnv: 
     ppGetTok(L, tok)

rod/rodread.nim

@@ -1,7 +1,7 @@
 #
 #
 #           The Nimrod Compiler
-#        (c) Copyright 2010 Andreas Rumpf
+#        (c) Copyright 2011 Andreas Rumpf
 #
 #    See the file "copying.txt", included in this
 #    distribution, for details about the copyright.
@@ -648,7 +648,7 @@ proc processRodFile(r: PRodReader, crc: TCrc32) =
       r.cgenIdx = r.pos + 2
       skipSection(r)
     else: 
-      MessageOut("skipping section: " & $r.pos)
+      MsgWriteln("skipping section: " & $r.pos)
       skipSection(r)
     if r.s[r.pos] == '\x0A': 
       inc(r.pos)
@@ -810,7 +810,7 @@ proc checkDep(filename: string): TReasonForRecompile =
   else: 
     result = rrRodDoesNotExist
   if (result != rrNone) and (gVerbosity > 0): 
-    MessageOut(`%`(reasonToFrmt[result], [filename]))
+    MsgWriteln(`%`(reasonToFrmt[result], [filename]))
   if (result != rrNone) or (optForceFullMake in gGlobalOptions): 
     # recompilation is necessary:
     r = nil

rod/suggest.nim

@@ -42,13 +42,13 @@ proc filterSym(s: PSym): bool {.inline.} =
 
 proc suggestField(s: PSym) = 
   if filterSym(s):
-    MessageOut(SymToStr(s, isLocal=true, sectionSuggest))
+    OutWriteln(SymToStr(s, isLocal=true, sectionSuggest))
 
 template wholeSymTab(cond, section: expr) = 
   for i in countdown(c.tab.tos-1, 0): 
     for it in items(c.tab.stack[i]): 
       if cond:
-        MessageOut(SymToStr(it, isLocal = i > ModuleTablePos, section))
+        OutWriteln(SymToStr(it, isLocal = i > ModuleTablePos, section))
 
 proc suggestSymList(list: PNode) = 
   for i in countup(0, sonsLen(list) - 1): 
@@ -115,11 +115,11 @@ proc suggestFieldAccess(c: PContext, n: PNode) =
         # all symbols accessible, because we are in the current module:
         for it in items(c.tab.stack[ModuleTablePos]): 
           if filterSym(it): 
-            MessageOut(SymToStr(it, isLocal=false, sectionSuggest))
+            OutWriteln(SymToStr(it, isLocal=false, sectionSuggest))
       else: 
         for it in items(n.sym.tab): 
           if filterSym(it): 
-            MessageOut(SymToStr(it, isLocal=false, sectionSuggest))
+            OutWriteln(SymToStr(it, isLocal=false, sectionSuggest))
     else:
       # fallback:
       suggestEverything(c, n)
@@ -228,7 +228,7 @@ proc suggestExpr*(c: PContext, node: PNode) =
   
   if optDef in gGlobalOptions:
     var n = findClosestSym(fuzzySemCheck(c, node))
-    if n != nil: MessageOut(SymToStr(n.sym, isLocal=false, sectionDef))
+    if n != nil: OutWriteln(SymToStr(n.sym, isLocal=false, sectionDef))
   quit(0)
 
 proc suggestStmt*(c: PContext, n: PNode) = 

rod/syntaxes.nim

@@ -140,7 +140,7 @@ proc applyFilter(p: var TParsers, n: PNode, filename: string,
   if f != filtNone: 
     if gVerbosity >= 2: 
       rawMessage(hintCodeBegin, [])
-      messageOut(result.s)
+      MsgWriteln(result.s)
       rawMessage(hintCodeEnd, [])
 
 proc evalPipe(p: var TParsers, n: PNode, filename: string,