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

improvements for 'not nil' checking

Browse source
This commit is contained in:
Araq 2013-06-13 01:40:11 +02:00
commit d4c91bbd85
9 changed files with 99 additions and 27 deletions
Download patch file Download diff file Expand all files Collapse all files

7
compiler/guards.nim
View file

@ -532,6 +532,13 @@ proc buildElse(n: PNode): PNode =
result.sons[1] = s
result.sons[2] = n.sons[0]
proc addDiscriminantFact*(m: var TModel, n: PNode) =
var fact = newNodeI(nkCall, n.info, 3)
fact.sons[0] = newSymNode(getSysMagic("==", mEqI))
fact.sons[1] = n.sons[0]
fact.sons[2] = n.sons[1]
m.add fact
proc addCaseBranchFacts*(m: var TModel, n: PNode, i: int) =
let branch = n.sons[i]
if branch.kind == nkOfBranch: