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add array constructors

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This commit is contained in:
Andrii Riabushenko
2018-11-30 09:47:55 +00:00
parent 6459d4ec72
commit ca473d0f94
1 changed files with 13 additions and 7 deletions
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20
compiler/destroyer.nim
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@@ -426,7 +426,7 @@ proc pArg(arg: PNode; c: var Con; isSink: bool): PNode =
result.add arg[0]
for i in 1..<arg.len:
result.add pArg(arg[i], c, i < L and parameters[i].kind == tySink)
elif arg.kind in {nkObjConstr, nkTupleConstr, nkCharLit..nkFloat128Lit}:
elif arg.kind in {nkBracket, nkObjConstr, nkTupleConstr, nkBracket, nkCharLit..nkFloat128Lit}:
discard "object construction to sink parameter: nothing to do"
result = arg
elif arg.kind == nkSym and arg.sym.kind in InterestingSyms and isLastRead(arg, c):
@@ -535,25 +535,31 @@ proc moveOrCopy(dest, ri: PNode; c: var Con): PNode =
branch = copyNode(ri[i])
branch.add moveOrCopyIfTyped(ri[i][0])
result.add branch
of nkBracket:
# array constructor
let ri2 = copyTree(ri)
for i in 0..<ri.len:
# everything that is passed to an array constructor is consumed,
# so these all act like 'sink' parameters:
ri2[i] = pArg(ri[i], c, isSink = true)
result = genSink(c, dest.typ, dest, ri2)
of nkObjConstr:
result = genSink(c, dest.typ, dest, ri)
let ri2 = copyTree(ri)
for i in 1..<ri.len:
# everything that is passed to an object constructor is consumed,
# so these all act like 'sink' parameters:
ri2[i].sons[1] = pArg(ri[i][1], c, isSink = true)
result.add ri2
ri2[i][1] = pArg(ri[i][1], c, isSink = true)
result = genSink(c, dest.typ, dest, ri2)
of nkTupleConstr:
result = genSink(c, dest.typ, dest, ri)
let ri2 = copyTree(ri)
for i in 0..<ri.len:
# everything that is passed to an tuple constructor is consumed,
# so these all act like 'sink' parameters:
if ri[i].kind == nkExprColonExpr:
ri2[i].sons[1] = pArg(ri[i][1], c, isSink = true)
ri2[i][1] = pArg(ri[i][1], c, isSink = true)
else:
ri2[i] = pArg(ri[i], c, isSink = true)
result.add ri2
result = genSink(c, dest.typ, dest, ri2)
of nkSym:
if ri.sym.kind != skParam and isLastRead(ri, c):
# Rule 3: `=sink`(x, z); wasMoved(z)