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Guard against wrong input to translateTickTime() #34

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Guard against wrong input to translateTickTime() #34

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4 changes: 4 additions & 0 deletions lib/jsmidgen.js
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Original file line number Diff line number Diff line change
Expand Up @@ -155,6 +155,10 @@ var Midi = {};
* @returns {number} Array of bytes that form the MIDI time value.
*/
translateTickTime: function(ticks) {
if (ticks < 0) {
throw new Error('Number of ticks must be non-negative');
}

var buffer = ticks & 0x7F;

while (ticks = ticks >> 7) {
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