1 files changed, 171 insertions, 0 deletions
diff --git a/compiler/condsyms.nim b/compiler/condsyms.nim
new file mode 100644
index 000000000..5043fc5d4
--- /dev/null
+++ b/compiler/condsyms.nim
@@ -0,0 +1,171 @@
+#
+#
+#           The Nim Compiler
+#        (c) Copyright 2015 Andreas Rumpf
+#
+#    See the file "copying.txt", included in this
+#    distribution, for details about the copyright.
+#
+
+# This module handles the conditional symbols.
+
+import
+  std/strtabs
+
+from options import Feature
+from lineinfos import hintMin, hintMax, warnMin, warnMax
+
+proc defineSymbol*(symbols: StringTableRef; symbol: string, value: string = "true") =
+  symbols[symbol] = value
+
+proc undefSymbol*(symbols: StringTableRef; symbol: string) =
+  symbols.del(symbol)
+
+#proc lookupSymbol*(symbols: StringTableRef; symbol: string): string =
+#  result = if isDefined(symbol): gSymbols[symbol] else: nil
+
+iterator definedSymbolNames*(symbols: StringTableRef): string =
+  for key in keys(symbols):
+    yield key
+
+proc countDefinedSymbols*(symbols: StringTableRef): int =
+  symbols.len
+
+proc initDefines*(symbols: StringTableRef) =
+  # for bootstrapping purposes and old code:
+  template defineSymbol(s) = symbols.defineSymbol(s)
+  defineSymbol("nimhygiene") # deadcode
+  defineSymbol("niminheritable") # deadcode
+  defineSymbol("nimmixin") # deadcode
+  defineSymbol("nimeffects") # deadcode
+  defineSymbol("nimbabel") # deadcode
+  defineSymbol("nimcomputedgoto") # deadcode
+  defineSymbol("nimunion") # deadcode
+  defineSymbol("nimnewshared") # deadcode
+  defineSymbol("nimNewTypedesc") # deadcode
+  defineSymbol("nimrequiresnimframe") # deadcode
+  defineSymbol("nimparsebiggestfloatmagic") # deadcode
+  defineSymbol("nimlocks") # deadcode
+  defineSymbol("nimnode") # deadcode
+  defineSymbol("nimvarargstyped") # deadcode
+  defineSymbol("nimtypedescfixed") # deadcode
+  defineSymbol("nimKnowsNimvm") # deadcode
+  defineSymbol("nimArrIdx") # deadcode
+  defineSymbol("nimHasalignOf") # deadcode
+  defineSymbol("nimDistros") # deadcode
+  defineSymbol("nimHasCppDefine") # deadcode
+  defineSymbol("nimGenericInOutFlags") # deadcode
+  when false: defineSymbol("nimHasOpt") # deadcode
+  defineSymbol("nimNoArrayToCstringConversion") # deadcode
+  defineSymbol("nimHasRunnableExamples") # deadcode
+  defineSymbol("nimNewDot") # deadcode
+  defineSymbol("nimHasNilChecks") # deadcode
+  defineSymbol("nimSymKind") # deadcode
+  defineSymbol("nimVmEqIdent") # deadcode
+  defineSymbol("nimNoNil") # deadcode
+  defineSymbol("nimNoZeroTerminator") # deadcode
+  defineSymbol("nimNotNil") # deadcode
+  defineSymbol("nimVmExportFixed") # deadcode
+  defineSymbol("nimHasSymOwnerInMacro") # deadcode
+  defineSymbol("nimNewRuntime") # deadcode
+  defineSymbol("nimIncrSeqV3") # deadcode
+  defineSymbol("nimAshr") # deadcode
+  defineSymbol("nimNoNilSeqs") # deadcode
+  defineSymbol("nimNoNilSeqs2") # deadcode
+  defineSymbol("nimHasUserErrors") # deadcode
+  defineSymbol("nimUncheckedArrayTyp") # deadcode
+  defineSymbol("nimHasTypeof") # deadcode
+  defineSymbol("nimErrorProcCanHaveBody") # deadcode
+  defineSymbol("nimHasInstantiationOfInMacro") # deadcode
+  defineSymbol("nimHasHotCodeReloading") # deadcode
+  defineSymbol("nimHasNilSeqs") # deadcode
+  defineSymbol("nimHasSignatureHashInMacro") # deadcode
+  defineSymbol("nimHasDefault") # deadcode
+  defineSymbol("nimMacrosSizealignof") # deadcode
+  defineSymbol("nimNoZeroExtendMagic") # deadcode
+  defineSymbol("nimMacrosGetNodeId") # deadcode
+  defineSymbol("nimFixedForwardGeneric") # deadcode
+  defineSymbol("nimToOpenArrayCString") # deadcode
+  defineSymbol("nimHasUsed") # deadcode
+  defineSymbol("nimnomagic64") # deadcode
+  defineSymbol("nimNewShiftOps") # deadcode
+  defineSymbol("nimHasCursor") # deadcode
+  defineSymbol("nimAlignPragma") # deadcode
+  defineSymbol("nimHasExceptionsQuery") # deadcode
+  defineSymbol("nimHasIsNamedTuple") # deadcode
+  defineSymbol("nimHashOrdinalFixed") # deadcode
+  defineSymbol("nimHasSinkInference") # deadcode
+  defineSymbol("nimNewIntegerOps") # deadcode
+  defineSymbol("nimHasInvariant") # deadcode
+
+
+
+  for f in Feature:
+    defineSymbol("nimHas" & $f)
+
+  for s in warnMin..warnMax:
+    defineSymbol("nimHasWarning" & $s)
+  for s in hintMin..hintMax:
+    defineSymbol("nimHasHint" & $s)
+
+  defineSymbol("nimFixedOwned")
+  defineSymbol("nimHasStyleChecks")
+
+  when defined(nimHasLibFFI):
+    # Renaming as we can't conflate input vs output define flags; e.g. this
+    # will report the right thing regardless of whether user adds
+    # `-d:nimHasLibFFI` in his user config.
+    defineSymbol("nimHasLibFFIEnabled") # deadcode
+
+  defineSymbol("nimHasStacktraceMsgs") # deadcode
+  defineSymbol("nimDoesntTrackDefects")
+  defineSymbol("nimHasLentIterators") # deadcode
+  defineSymbol("nimHasDeclaredMagic") # deadcode
+  defineSymbol("nimHasStacktracesModule") # deadcode
+  defineSymbol("nimHasEffectTraitsModule")
+  defineSymbol("nimHasCastPragmaBlocks")
+  defineSymbol("nimHasDeclaredLocs")
+  defineSymbol("nimHasJsBigIntBackend")
+  defineSymbol("nimHasWarningAsError")
+  defineSymbol("nimHasHintAsError")
+  defineSymbol("nimHasSpellSuggest")
+  defineSymbol("nimHasCustomLiterals")
+  defineSymbol("nimHasUnifiedTuple")
+  defineSymbol("nimHasIterable")
+  defineSymbol("nimHasTypeofVoid") # deadcode
+  defineSymbol("nimHasDragonBox") # deadcode
+  defineSymbol("nimHasHintAll")
+  defineSymbol("nimHasTrace")
+  defineSymbol("nimHasEffectsOf")
+
+  defineSymbol("nimHasEnforceNoRaises")
+  defineSymbol("nimHasTopDownInference")
+  defineSymbol("nimHasTemplateRedefinitionPragma")
+  defineSymbol("nimHasCstringCase")
+  defineSymbol("nimHasCallsitePragma")
+
+  defineSymbol("nimHasWarnCastSizes") # deadcode
+  defineSymbol("nimHasOutParams")
+  defineSymbol("nimHasSystemRaisesDefect")
+  defineSymbol("nimHasWarnUnnamedBreak")
+  defineSymbol("nimHasGenericDefine")
+  defineSymbol("nimHasDefineAliases")
+  defineSymbol("nimHasWarnBareExcept")
+  defineSymbol("nimHasDup")
+  defineSymbol("nimHasChecksums")
+  defineSymbol("nimHasSendable")
+  defineSymbol("nimAllowNonVarDestructor")
+  defineSymbol("nimHasQuirky")
+  defineSymbol("nimHasEnsureMove")
+  defineSymbol("nimHasNoReturnError")
+
+  defineSymbol("nimUseStrictDefs")
+  defineSymbol("nimHasNolineTooLong")
+
+  defineSymbol("nimHasCastExtendedVm")
+  defineSymbol("nimHasWarnStdPrefix")
+
+  defineSymbol("nimHasVtables")
+  defineSymbol("nimHasGenericsOpenSym2")
+  defineSymbol("nimHasGenericsOpenSym3")
+  defineSymbol("nimHasJsNoLambdaLifting")