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fixes compiler regression

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This commit is contained in:
Araq 2019-04-06 19:12:44 +02:00
commit f1ee36692a
1 changed files with 4 additions and 1 deletions
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3
compiler/liftdestructors.nim
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@ -74,6 +74,7 @@ proc liftBodyObj(c: var TLiftCtx; n, body, x, y: PNode) =
# generate selector: # generate selector:
var access = dotField(x, n[0].sym) var access = dotField(x, n[0].sym)
caseStmt.add(access) caseStmt.add(access)
var emptyBranches = 0
# copy the branches over, but replace the fields with the for loop body: # copy the branches over, but replace the fields with the for loop body:
for i in 1 ..< n.len: for i in 1 ..< n.len:
var branch = copyTree(n[i]) var branch = copyTree(n[i])
@ -81,7 +82,9 @@ proc liftBodyObj(c: var TLiftCtx; n, body, x, y: PNode) =
branch.sons[L-1] = newNodeI(nkStmtList, c.info) branch.sons[L-1] = newNodeI(nkStmtList, c.info)
liftBodyObj(c, n[i].lastSon, branch.sons[L-1], x, y) liftBodyObj(c, n[i].lastSon, branch.sons[L-1], x, y)
if branch.sons[L-1].len == 0: inc emptyBranches
caseStmt.add(branch) caseStmt.add(branch)
if emptyBranches != n.len-1:
body.add(caseStmt) body.add(caseStmt)
of nkRecList: of nkRecList:
for t in items(n): liftBodyObj(c, t, body, x, y) for t in items(n): liftBodyObj(c, t, body, x, y)