help front brakes

[LABMAN]

Well i have done numerous brakes in my life and have never had a problem like this. Pushed the calipers in like i always do put new bracks on put wheels back on take jack stands out lower truck. Go and start the tahoe pump brakes and i have nothing no pump at all goes to floor. So i took brakes all apart i have no brake fluid out of the hard line on the passenger side. So i took the resivour cap off and the rubber gasket is all swelled up. Do you think i blew the master cylinder out ?