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New concurrency model: next steps

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This commit is contained in:
Araq 2014-04-19 22:24:43 +02:00
commit 3b69a8d27a
23 changed files with 460 additions and 200 deletions
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compiler/lowerings.nim
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@ -151,6 +151,8 @@ proc wrapProcForSpawn*(owner: PSym; n: PNode): PNode =
if n.kind notin nkCallKinds or not n.typ.isEmptyType:
localError(n.info, "'spawn' takes a call expression of type void")
return
if {tfThread, tfNoSideEffect} * n[0].typ.flags == {}:
localError(n.info, "'spawn' takes a GC safe call expression")
var
threadParam = newSym(skParam, getIdent"thread", owner, n.info)
argsParam = newSym(skParam, getIdent"args", owner, n.info)
@ -196,7 +198,7 @@ proc wrapProcForSpawn*(owner: PSym; n: PNode): PNode =
# we pick n's type here, which hopefully is 'tyArray' and not
# 'tyOpenArray':
var argType = n[i].typ.skipTypes(abstractInst)
if argType.kind == tyVar:
if i < formals.len and formals[i].typ.kind == tyVar:
localError(n[i].info, "'spawn'ed function cannot have a 'var' parameter")
elif containsTyRef(argType):
localError(n[i].info, "'spawn'ed function cannot refer to 'ref'/closure")