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# bitmap.tcl --
#
# A template demonstrating the handling of enum conversions.
#
# Copyright (c) 2014,2022 Andreas Kupries <andreas_kupries@users.sourceforge.net>
# # ## ### ##### ######## ############# #####################
## Requirements
package require Tcl 8.6 9
package require critcl 3.1.11
package require critcl::enum 1
# # ## ### ##### ######## ############# #####################
## Administrivia
critcl::license {Andreas Kupries} BSD
critcl::summary {Enum conversion}
critcl::description {
This package implements nothing. It serves only as a
demonstration and template on how to declare an enum
converter and use it in cproc's or ccommand's.
}
critcl::subject demonstration {enum conversion} {encode enum} \
{decode enum} {convert enum}
# # ## ### ##### ######## ############# #####################
## C code.
critcl::enum::def demo {
E_global global
E_exact exact
E_filler filler
}
critcl::cproc encode {Tcl_Interp* ip Tcl_Obj* str} int {
int val;
demo_GetFromObj (ip, str, 0, &val);
return val;
}
critcl::cproc decode {Tcl_Interp* ip int val} object {
Tcl_Obj* res = demo_ToObj (ip, val);
Tcl_IncrRefCount (res);
return res;
}
# Encode hidden in the argtype.
critcl::cproc xencode {Tcl_Interp* ip demo str} int {
return str;
}
# Encode hidden in the argtype.
critcl::cproc xencode-p {Tcl_Interp* ip demo-prefix str} int {
return str;
}
# Decode hidden in the resultype
critcl::cproc xdecode {Tcl_Interp* ip int val} demo {
return val;
}
# encode exact => 1
# xencode filler => 2
# xencode-p glob => 0
# xencode glob => /error/
# decode 2 => filler
# xdecode 0 => global
# decode 8 => panic, abort, core dump
# ### ### ### ######### ######### #########
## Ready
package provide enum 1
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