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Merge pull request #2031 from reactormonk/high-cstring

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Fixes #2030
This commit is contained in:
Andreas Rumpf 2015-02-04 10:39:49 +01:00
commit 7f14d0e782
4 changed files with 11 additions and 4 deletions
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2
compiler/semexprs.nim
View file

@ -306,7 +306,7 @@ proc semLowHigh(c: PContext, n: PNode, m: TMagic): PNode =
var typ = skipTypes(n.sons[1].typ, abstractVarRange + var typ = skipTypes(n.sons[1].typ, abstractVarRange +
{tyTypeDesc, tyFieldAccessor}) {tyTypeDesc, tyFieldAccessor})
case typ.kind case typ.kind
of tySequence, tyString, tyOpenArray, tyVarargs: of tySequence, tyString, tyCString, tyOpenArray, tyVarargs:
n.typ = getSysType(tyInt) n.typ = getSysType(tyInt)
of tyArrayConstr, tyArray: of tyArrayConstr, tyArray:
n.typ = typ.sons[0] # indextype n.typ = typ.sons[0] # indextype

2
compiler/semfold.nim
View file

@ -666,7 +666,7 @@ proc getConstExpr(m: PSym, n: PNode): PNode =
result = newIntNodeT(firstOrd(n.sons[1].typ), n) result = newIntNodeT(firstOrd(n.sons[1].typ), n)
of mHigh: of mHigh:
if skipTypes(n.sons[1].typ, abstractVar).kind notin if skipTypes(n.sons[1].typ, abstractVar).kind notin
{tyOpenArray, tyVarargs, tySequence, tyString}: {tySequence, tyString, tyCString, tyOpenArray, tyVarargs}:
result = newIntNodeT(lastOrd(skipTypes(n[1].typ, abstractVar)), n) result = newIntNodeT(lastOrd(skipTypes(n[1].typ, abstractVar)), n)
else: else:
var a = getArrayConstr(m, n.sons[1]) var a = getArrayConstr(m, n.sons[1])

3
compiler/vmgen.nim
View file

@ -893,7 +893,8 @@ proc genMagic(c: PCtx; n: PNode; dest: var TDest) =
of mHigh: of mHigh:
if dest < 0: dest = c.getTemp(n.typ) if dest < 0: dest = c.getTemp(n.typ)
let tmp = c.genx(n.sons[1]) let tmp = c.genx(n.sons[1])
if n.sons[1].typ.skipTypes(abstractVar-{tyTypeDesc}).kind == tyString: case n.sons[1].typ.skipTypes(abstractVar-{tyTypeDesc}).kind:
of tyString, tyCString:
c.gABI(n, opcLenStr, dest, tmp, 1) c.gABI(n, opcLenStr, dest, tmp, 1)
else: else:
c.gABI(n, opcLenSeq, dest, tmp, 1) c.gABI(n, opcLenSeq, dest, tmp, 1)

6
tests/exprs/thighCString.nim Normal file
View file

@ -0,0 +1,6 @@
discard """
output: "5"
"""
let test = cstring("foobar")
echo high(test)