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reflect: panic if MakeSlice is given bad len/cap arguments. 

Fixes #3330.

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/5847043
This commit is contained in:
David Symonds 2012-03-16 17:28:16 +11:00
parent 8009542f55
commit 11cc5a26d5
1 changed files with 9 additions and 0 deletions
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9
src/pkg/reflect/value.go
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@ -1632,6 +1632,15 @@ func MakeSlice(typ Type, len, cap int) Value {
if typ.Kind() != Slice {
panic("reflect.MakeSlice of non-slice type")
}
if len < 0 {
panic("reflect.MakeSlice: negative len")
}
if cap < 0 {
panic("reflect.MakeSlice: negative cap")
}
if len > cap {
panic("reflect.MakeSlice: len > cap")
}
// Declare slice so that gc can see the base pointer in it.
var x []byte