How to make an alias for a proc
The common idiom for making an alias for a procedure is interp alias, but the byte-compiled versions of commands (not user procedures, but built-in commands) will not be used in that case. Here is an implementation of an idea suggested by MS for making aliases without, missing out on that byte-compiled command goodness:
proc alias {name target} {
set fullname [uplevel [list namespace which $name]]
if {$fullname eq {}} {
return -code error "no such command: $name"
}
namespace eval [namespace qualifiers $fullname] \
[list namespace export [namespace tail $name]]
set newcmd [namespace eval [info cmdcount] {
variable target [uplevel set target]
namespace import [uplevel set fullname]
rename [uplevel set name] $target
namespace export $target
namespace which $target
}]
uplevel [list namespace import $newcmd]
uplevel [list trace add command $target delete [list apply [list {stash args} {
namespace delete [namespace qualifiers $stash]
}] $newcmd]]
}Example:
alias set pset
pset answer 42
puts $answer
rename ::pset {}