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'bind' as a declarative statement

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This commit is contained in:
Araq 2011-10-10 02:04:15 +02:00
commit 51e01879ba
18 changed files with 204 additions and 93 deletions
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17
compiler/semtempl.nim
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@ -96,6 +96,19 @@ proc symChoice(c: PContext, n: PNode, s: PSym): PNode =
addSon(result, newSymNode(a))
a = nextOverloadIter(o, c, n)
proc semBindStmt(c: PContext, n: PNode, toBind: var TIntSet): PNode =
for i in 0 .. < n.len:
var a = n.sons[i]
if a.kind == nkIdent:
var s = SymtabGet(c.Tab, a.ident)
if s != nil:
toBind.incl(s.name.id)
else:
localError(a.info, errUndeclaredIdentifier, a.ident.s)
else:
illFormedAst(a)
result = newNodeI(nkEmpty, n.info)
proc resolveTemplateParams(c: PContext, n: PNode, withinBind: bool,
toBind: var TIntSet): PNode =
var s: PSym
@ -103,7 +116,7 @@ proc resolveTemplateParams(c: PContext, n: PNode, withinBind: bool,
of nkIdent:
if not withinBind and not Contains(toBind, n.ident.id):
s = SymTabLocalGet(c.Tab, n.ident)
if (s != nil):
if s != nil:
result = newSymNode(s)
result.info = n.info
else:
@ -115,6 +128,8 @@ proc resolveTemplateParams(c: PContext, n: PNode, withinBind: bool,
result = n
of nkBind:
result = resolveTemplateParams(c, n.sons[0], true, toBind)
of nkBindStmt:
result = semBindStmt(c, n, toBind)
else:
result = n
for i in countup(0, sonsLen(n) - 1):