15 Rules of Channels and Their Implementation

15 Rules of Channels and Their Implementation Operation rules Operation nil Closed channel Open buffered channel Open unbuffered channel Close panic panic Close succeeds; buffered values can be read. After buffer drains, further reads return the zero value of the channel type. Close succeeds; further reads return the zero value of the channel type. Receive Block Non-blocking; returns the zero value of the channel type Non-blocking; reads values normally Block Send Block panic Non-blocking; writes values normally Block Compile-time rules Operation Channel type Result Receive Send-only channel Compile error Send Receive-only channel Compile error Close Receive-only channel Compile error