buffer and slice

[DavidApfel]

Not sure if this is a bug or just different behaviour than with node, but when using for example the bn.js module with trireme it's a problem.

When using trireme and create a buffer and try to get a minus index [-1] of the buffer it gives an ArrayIndexOutOfBoundsException. When I create then a second buffer with slice() from the first buffer and then try to get a minus index it gives a value. While using node I get undefined in both cases:

var buf1 = new Buffer("1111", "hex");
var buf2 = buf1.slice(1);

trireme:

console.log(buf1[-1]); // java.lang.ArrayIndexOutOfBoundsException: -1
console.log(buf2[-1]); // 17

node:

console.log(buf1[-1]); // undefined
console.log(buf2[-1]); // undefined

[gbrail]

Thanks for trying this. If trireme works differently from Node 0.10 in this
regard then it's a Trireme bug that wasn't caught by one of the regression
tests. This should not be too hard to fix...

On Wed, Jan 27, 2016 at 10:09 AM, DavidApfel notifications@github.com
wrote:

Not sure if this is a bug or just different behaviour than with node, but
when using for example the bn.js module with trireme it's a problem.

When using trireme and create a buffer and try to get a minus index [-1]
of the buffer it gives an ArrayIndexOutOfBoundsException. When I create
then a second buffer with slice() from the first buffer and then try to get
a minus index it gives a value. While using node I get undefined in both
cases:

var buf1 = new Buffer("1111", "hex");
var buf2 = buf1.slice(1);

trireme:

console.log(buf1[-1]); // java.lang.ArrayIndexOutOfBoundsException: -1
console.log(buf2[-1]); // 17

node:

console.log(buf1[-1]); // undefined
console.log(buf2[-1]); // undefined

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[DavidApfel]

Yes, Trireme works differently from Node v0.10.32. Thanks!