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First steps, the compiler can boot with enforced requiresInit

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This commit is contained in:
Zahary Karadjov 2020-03-27 15:47:49 +02:00 • committed by Andreas Rumpf
commit a8b6222c86
7 changed files with 26 additions and 29 deletions
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8
compiler/sempass2.nim
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@ -184,7 +184,7 @@ proc initVar(a: PEffects, n: PNode; volatileCheck: bool) =
proc initVarViaNew(a: PEffects, n: PNode) =
if n.kind != nkSym: return
let s = n.sym
if {tfNeedsInit, tfNotNil} * s.typ.flags <= {tfNotNil}:
if {tfRequiresInit, tfNotNil} * s.typ.flags <= {tfNotNil}:
# 'x' is not nil, but that doesn't mean its "not nil" children
# are initialized:
initVar(a, n, volatileCheck=true)
@ -253,7 +253,7 @@ proc useVar(a: PEffects, n: PNode) =
# If the variable is explicitly marked as .noinit. do not emit any error
a.init.add s.id
elif s.id notin a.init:
if {tfNeedsInit, tfNotNil} * s.typ.flags != {}:
if {tfRequiresInit, tfNotNil} * s.typ.flags != {}:
message(a.config, n.info, warnProveInit, s.name.s)
else:
message(a.config, n.info, warnUninit, s.name.s)
@ -838,7 +838,7 @@ proc track(tracked: PEffects, n: PNode) =
# may not look like an assignment, but it is:
let arg = n[1]
initVarViaNew(tracked, arg)
if arg.typ.len != 0 and {tfNeedsInit} * arg.typ.lastSon.flags != {}:
if arg.typ.len != 0 and {tfRequiresInit} * arg.typ.lastSon.flags != {}:
if a.sym.magic == mNewSeq and n[2].kind in {nkCharLit..nkUInt64Lit} and
n[2].intVal == 0:
# var s: seq[notnil]; newSeq(s, 0) is a special case!
@ -1203,7 +1203,7 @@ proc trackProc*(c: PContext; s: PSym, body: PNode) =
createTypeBoundOps(t, typ, param.info)
if not isEmptyType(s.typ[0]) and
({tfNeedsInit, tfNotNil} * s.typ[0].flags != {} or
({tfRequiresInit, tfNotNil} * s.typ[0].flags != {} or
s.typ[0].skipTypes(abstractInst).kind == tyVar) and
s.kind in {skProc, skFunc, skConverter, skMethod}:
var res = s.ast[resultPos].sym # get result symbol