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the is operator now works with type classes and type variables

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bugfixes:
the DLL tests were failing on Mac OS X, due to an incorrect DynlibFormat
This commit is contained in:
Zahary Karadjov
2012-10-02 16:45:34 +03:00
parent 770d4a997e
commit 9c8bc3a244
13 changed files with 162 additions and 88 deletions
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31
compiler/semexprs.nim
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@@ -281,18 +281,29 @@ proc semOf(c: PContext, n: PNode): PNode =
n.typ = getSysType(tyBool)
result = n
proc semIs(c: PContext, n: PNode): PNode =
if sonsLen(n) == 3:
n.typ = getSysType(tyBool)
let a = semTypeNode(c, n[1], nil)
n.sons[1] = newNodeIT(nkType, n[1].info, a)
if n[2].kind notin {nkStrLit..nkTripleStrLit}:
let b = semTypeNode(c, n[2], nil)
n.sons[2] = newNodeIT(nkType, n[2].info, b)
else:
proc semIs(c: PContext, n: PNode): PNode =
if sonsLen(n) != 3:
LocalError(n.info, errXExpectsTwoArguments, "is")
result = n
result = n
n.typ = getSysType(tyBool)
n.sons[1] = semExprWithType(c, n[1])
if n[1].typ.kind != tyTypeDesc:
LocalError(n[0].info, errTypeExpected)
if n[2].kind notin {nkStrLit..nkTripleStrLit}:
let t2 = semTypeNode(c, n[2], nil)
n.sons[2] = newNodeIT(nkType, n[2].info, t2)
if n[1].typ.sonsLen == 0:
# this is a typedesc variable, leave for evals
return
else:
let t1 = n[1].typ.sons[0]
# BUGFIX: don't evaluate this too early: ``T is void``
if not containsGenericType(t1): result = evalIsOp(n)
proc semOpAux(c: PContext, n: PNode, tailToExclude = 1) =
for i in countup(1, sonsLen(n) - tailToExclude):
var a = n.sons[i]