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fix #10128 (#18852)

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This commit is contained in:
flywind
2021-09-15 01:40:42 +08:00
committed by GitHub
parent bf1700bab1
commit cebf7cdc1e
2 changed files with 21 additions and 3 deletions
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6
compiler/ccgexprs.nim
View File

@@ -1006,14 +1006,14 @@ proc genOpenArrayElem(p: BProc, n, x, y: PNode, d: var TLoc) =
# emit range check:
if optBoundsCheck in p.options:
linefmt(p, cpsStmts, "if ((NU)($1) >= (NU)($2Len_0)){ #raiseIndexError2($1,$2Len_0-1); $3}$n",
[rdLoc(b), rdLoc(a), raiseInstr(p)]) # BUGFIX: ``>=`` and not ``>``!
[rdCharLoc(b), rdLoc(a), raiseInstr(p)]) # BUGFIX: ``>=`` and not ``>``!
inheritLocation(d, a)
putIntoDest(p, d, n,
ropecg(p.module, "$1[$2]", [rdLoc(a), rdCharLoc(b)]), a.storage)
else:
if optBoundsCheck in p.options:
linefmt(p, cpsStmts, "if ((NU)($1) >= (NU)($2.Field1)){ #raiseIndexError2($1,$2.Field1-1); $3}$n",
[rdLoc(b), rdLoc(a), raiseInstr(p)]) # BUGFIX: ``>=`` and not ``>``!
[rdCharLoc(b), rdLoc(a), raiseInstr(p)]) # BUGFIX: ``>=`` and not ``>``!
inheritLocation(d, a)
putIntoDest(p, d, n,
ropecg(p.module, "$1.Field0[$2]", [rdLoc(a), rdCharLoc(b)]), a.storage)
@@ -1028,7 +1028,7 @@ proc genSeqElem(p: BProc, n, x, y: PNode, d: var TLoc) =
if optBoundsCheck in p.options:
linefmt(p, cpsStmts,
"if ((NU)($1) >= (NU)$2){ #raiseIndexError2($1,$2-1); $3}$n",
[rdLoc(b), lenExpr(p, a), raiseInstr(p)])
[rdCharLoc(b), lenExpr(p, a), raiseInstr(p)])
if d.k == locNone: d.storage = OnHeap
if skipTypes(a.t, abstractVar).kind in {tyRef, tyPtr}:
a.r = ropecg(p.module, "(*$1)", [a.r])

18
tests/ccgbugs/t10128.nim Normal file
View File

@@ -0,0 +1,18 @@
# bug #10128
let data = "abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz"
var seq2 = newSeq[char](data.len)
for i in 0..<data.len:
seq2[i] = data[i]
let c = '\128'
# case 1
doAssert data[c.int] == 'y'
doAssert seq2[c.int] == 'y'
proc play(x: openArray[char]) =
doAssert x[c.int] == 'y'
# case2
play(data)
play(seq2)