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Multiple inheritance and constructor calls
[incr-Tcl] example from a Well House Consultants training course
More on [incr-Tcl] [link] Source code: inherits.itcl Module: T245
#!/usr/bin/env tclsh
# Demonstration of multiple inheritance in Itcl package require Itcl namespace import itcl::* # First base class class person { public variable name public variable age constructor {{inname "A N Other"} {inage 21}} { set name $inname set age $inage } } # Second base class class cost { public variable startup public variable annual constructor {{yearly 12000} {newstart 0}} { set startup $newstart set annual $yearly } method getmonthly {} { return [expr $annual/12.] } } # class that multiple inherits class employee { inherit person cost variable empnumber constructor {empn} { # Construct a cost ... cost::constructor 15000 } { # automatically constructs a person # with all parameters defaulted. Then the extra # variables are set up here set empnumber $empn } } # Test application to use employee class # Constructor test employee boris 77653 employee brenda 72727 # change various inherited settings! boris configure -name "Boris Morris" brenda configure -age 50 brenda configure -annual 18500 # Retreive and print various attributes foreach teammember {boris brenda} { set name [$teammember cget -name] set paythem [$teammember getmonthly] puts "Pay $name at $paythem per month" } Learn about this subject
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