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

generic multi-methods should work now

Browse source
This commit is contained in:
Andreas Rumpf 2016-07-28 20:23:16 +02:00
commit f5fa5dae85
9 changed files with 67 additions and 21 deletions
Download patch file Download diff file Expand all files Collapse all files

9
compiler/sigmatch.nim
View file

@ -1796,16 +1796,19 @@ proc argtypeMatches*(c: PContext, f, a: PType): bool =
result = res != nil
proc instTypeBoundOp*(c: PContext; dc: PSym; t: PType; info: TLineInfo;
op: TTypeAttachedOp): PSym {.procvar.} =
op: TTypeAttachedOp; col: int): PSym {.procvar.} =
var m: TCandidate
initCandidate(c, m, dc.typ)
var f = dc.typ.sons[1]
if col >= dc.typ.len:
localError(info, errGenerated, "cannot instantiate '" & dc.name.s & "'")
return nil
var f = dc.typ.sons[col]
if op == attachedDeepCopy:
if f.kind in {tyRef, tyPtr}: f = f.lastSon
else:
if f.kind == tyVar: f = f.lastSon
if typeRel(m, f, t) == isNone:
localError(info, errGenerated, "cannot instantiate 'deepCopy'")
localError(info, errGenerated, "cannot instantiate '" & dc.name.s & "'")
else:
result = c.semGenerateInstance(c, dc, m.bindings, info)
assert sfFromGeneric in result.flags