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cursor inference: hotfix (#14999)

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Andreas Rumpf 2020-07-16 12:07:06 +02:00 • committed by GitHub
commit 6b607413e9
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1 changed files with 13 additions and 8 deletions
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21
compiler/cursor_inference.nim
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@ -35,6 +35,7 @@ type
mutations: IntSet
reassigns: IntSet
config: ConfigRef
inAsgnSource: int
proc locationRoot(e: PNode; followDotExpr = true): PSym =
var n = e
@ -221,7 +222,9 @@ proc analyse(c: var Con; n: PNode) =
of nkAsgn, nkFastAsgn:
analyse(c, n[0])
inc c.inAsgnSource
analyse(c, n[1])
dec c.inAsgnSource
if n[0].kind == nkSym:
if hasDestructor(n[0].typ):
@ -252,14 +255,16 @@ proc analyse(c: var Con; n: PNode) =
c.mutations.incl r.id
of nkTupleConstr, nkBracket, nkObjConstr:
for i in ord(n.kind == nkObjConstr)..<n.len:
if n[i].kind == nkSym:
# we assume constructions with cursors are better without
# the cursors because it's likely we can move then, see
# test arc/topt_no_cursor.nim
let r = n[i].sym
c.mayOwnData.incl r.id
c.mutations.incl r.id
for child in n: analyse(c, child)
if c.inAsgnSource > 0:
for i in ord(n.kind == nkObjConstr)..<n.len:
if n[i].kind == nkSym:
# we assume constructions with cursors are better without
# the cursors because it's likely we can move then, see
# test arc/topt_no_cursor.nim
let r = n[i].sym
c.mayOwnData.incl r.id
c.mutations.incl r.id
of nkVarSection, nkLetSection:
for it in n: