jyapayne/Nim
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

distinctBase type trait for distinct types (#13031)

Browse source
This commit is contained in:
cooldome 2020-01-07 23:36:57 +00:00 • committed by Andreas Rumpf
commit 871d5e79b1
7 changed files with 91 additions and 70 deletions
Download patch file Download diff file Expand all files Collapse all files

16
compiler/semmagic.nim
View file

@ -172,6 +172,22 @@ proc evalTypeTrait(c: PContext; traitCall: PNode, operand: PType, context: PSym)
let complexObj = containsGarbageCollectedRef(t) or
hasDestructor(t)
result = newIntNodeT(toInt128(ord(not complexObj)), traitCall, c.graph)
of "isNamedTuple":
let cond = operand.kind == tyTuple and operand.n != nil
result = newIntNodeT(toInt128(ord(cond)), traitCall, c.graph)
of "distinctBase":
var arg = operand.skipTypes({tyGenericInst})
if arg.kind == tyDistinct:
while arg.kind == tyDistinct:
arg = arg.base
arg = arg.skipTypes(skippedTypes + {tyGenericInst})
var resType = newType(tyTypeDesc, operand.owner)
rawAddSon(resType, arg)
result = toNode(resType, traitCall.info)
else:
localError(c.config, traitCall.info,
"distinctBase expects a distinct type as argument. The given type was " & typeToString(operand))
result = newType(tyError, context).toNode(traitCall.info)
else:
localError(c.config, traitCall.info, "unknown trait: " & s)
result = newNodeI(nkEmpty, traitCall.info)