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first step to get rid of nil in the AST

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This commit is contained in:
Araq 2011-02-09 00:26:41 +01:00
commit 27dc54cbda
17 changed files with 505 additions and 436 deletions
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9
rod/passes.nim
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@ -104,7 +104,7 @@ proc processTopLevelStmtCached(n: PNode, a: var TPassContextArray) =
if not isNil(gPasses[i].openCached): m = gPasses[i].process(a[i], m)
proc closePassesCached(a: var TPassContextArray) =
var m: PNode = nil
var m = ast.emptyNode
for i in countup(0, gPassesLen - 1):
if not isNil(gPasses[i].openCached) and not isNil(gPasses[i].close):
m = gPasses[i].close(a[i], m)
@ -114,7 +114,6 @@ proc processModule(module: PSym, filename: string, stream: PLLStream,
rd: PRodReader) =
var
p: TParsers
n: PNode
a: TPassContextArray
s: PLLStream
if rd == nil:
@ -129,8 +128,8 @@ proc processModule(module: PSym, filename: string, stream: PLLStream,
while true:
openParsers(p, filename, s)
while true:
n = parseTopLevelStmt(p)
if n == nil: break
var n = parseTopLevelStmt(p)
if n.kind == nkEmpty: break
processTopLevelStmt(n, a)
closeParsers(p)
if s.kind != llsStdIn: break
@ -139,7 +138,7 @@ proc processModule(module: PSym, filename: string, stream: PLLStream,
IDsynchronizationPoint(1000)
else:
openPassesCached(a, module, filename, rd)
n = loadInitSection(rd) #MessageOut('init section' + renderTree(n));
var n = loadInitSection(rd) #MessageOut('init section' + renderTree(n));
for i in countup(0, sonsLen(n) - 1): processTopLevelStmtCached(n.sons[i], a)
closePassesCached(a)