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

fixes #7524

Browse source
This commit is contained in:
Araq 2019-01-14 12:15:29 +01:00
commit 825e08b046
3 changed files with 23 additions and 9 deletions
Download patch file Download diff file Expand all files Collapse all files

15
compiler/parampatterns.nim
View file

@ -115,20 +115,19 @@ proc compileConstraints(p: PNode, result: var TPatternCode; conf: ConfigRef) =
else:
patternError(p, conf)
proc semNodeKindConstraints*(p: PNode; conf: ConfigRef): PNode =
proc semNodeKindConstraints*(n: PNode; conf: ConfigRef; start: Natural): PNode =
## does semantic checking for a node kind pattern and compiles it into an
## efficient internal format.
assert p.kind == nkCurlyExpr
result = newNodeI(nkStrLit, p.info)
result = newNodeI(nkStrLit, n.info)
result.strVal = newStringOfCap(10)
result.strVal.add(chr(aqNone.ord))
if p.len >= 2:
for i in 1..<p.len:
compileConstraints(p.sons[i], result.strVal, conf)
if n.len >= 2:
for i in start..<n.len:
compileConstraints(n[i], result.strVal, conf)
if result.strVal.len > MaxStackSize-1:
internalError(conf, p.info, "parameter pattern too complex")
internalError(conf, n.info, "parameter pattern too complex")
else:
patternError(p, conf)
patternError(n, conf)
result.strVal.add(ppEof)
type