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backend preparations for incomplete/forwarded object types

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This commit is contained in:
Andreas Rumpf 2017-10-28 13:46:43 +02:00
commit c6235920cb
10 changed files with 122 additions and 90 deletions
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6
compiler/pragmas.nim
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@ -55,7 +55,7 @@ const
wPure, wHeader, wCompilerproc, wFinal, wSize, wExtern, wShallow,
wImportCpp, wImportObjC, wError, wIncompleteStruct, wByCopy, wByRef,
wInheritable, wGensym, wInject, wRequiresInit, wUnchecked, wUnion, wPacked,
wBorrow, wGcSafe, wExportNims, wPartial, wUsed, wExplain}
wBorrow, wGcSafe, wExportNims, wPartial, wUsed, wExplain, wForward}
fieldPragmas* = {wImportc, wExportc, wDeprecated, wExtern,
wImportCpp, wImportObjC, wError, wGuard, wBitsize, wUsed}
varPragmas* = {wImportc, wExportc, wVolatile, wRegister, wThreadVar, wNodecl,
@ -799,6 +799,10 @@ proc singlePragma(c: PContext, sym: PSym, n: PNode, i: int,
noVal(it)
if sym.typ == nil or tfFinal in sym.typ.flags: invalidPragma(it)
else: incl(sym.typ.flags, tfInheritable)
of wForward:
noVal(it)
if sym.typ == nil: invalidPragma(it)
else: incl(sym.flags, sfForward)
of wAcyclic:
noVal(it)
if sym.typ == nil: invalidPragma(it)