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the foundations of a type traits module; better error messages for expr, typedesc and typeclasses params

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This commit is contained in:
Zahary Karadjov 2012-04-06 05:02:48 +03:00
commit efb53233cb
8 changed files with 65 additions and 12 deletions
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10
compiler/semexprs.nim
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@ -1314,11 +1314,11 @@ proc semExpr(c: PContext, n: PNode, flags: TExprFlags = {}): PNode =
Message(n.info, warnDeprecated, "bind")
result = semExpr(c, n.sons[0], flags)
of nkTypeOfExpr:
var typ = semTypeNode(c, n, nil)
if typ.sym == nil:
typ = copyType(typ, typ.owner, true)
typ.linkTo(newSym(skType, getIdent"typedesc", typ.owner))
result = newSymNode(typ.sym, n.info)
var typ = semTypeNode(c, n, nil).skipTypes({tyTypeDesc})
typ = makeTypedesc(c, typ)
var sym = newSym(skType, getIdent"TypeOfExpr", typ.owner).linkTo(typ)
sym.flags.incl(sfAnon)
result = newSymNode(sym, n.info)
of nkCall, nkInfix, nkPrefix, nkPostfix, nkCommand, nkCallStrLit:
# check if it is an expression macro:
checkMinSonsLen(n, 1)