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stop panicing on bad array length

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This commit is contained in:
deads2k 2015-11-09 11:01:57 -05:00
parent 8a8f394f0d
commit e683842359
1 changed files with 10 additions and 0 deletions
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10
pkg/util/jsonpath/jsonpath.go
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@ -234,6 +234,16 @@ func (j *JSONPath) evalArray(input []reflect.Value, node *ArrayNode) ([]reflect.
params[1].Value += value.Len() params[1].Value += value.Len()
} }
sliceLength := value.Len()
if params[1].Value != params[0].Value { // if you're requesting zero elements, allow it through.
if params[0].Value >= sliceLength {
return input, fmt.Errorf("array index out of bounds: index %d, length %d", params[0].Value, sliceLength)
}
if params[1].Value > sliceLength {
return input, fmt.Errorf("array index out of bounds: index %d, length %d", params[1].Value-1, sliceLength)
}
}
if !params[2].Known { if !params[2].Known {
value = value.Slice(params[0].Value, params[1].Value) value = value.Slice(params[0].Value, params[1].Value)
} else { } else {