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1924d64f6e
* 'master' of git://repo.or.cz/git-gui: git-gui: Save geometry before the window layout is damaged git-gui: Give amend precedence to HEAD over MERGE_MSG git-gui: Include 'war on whitespace' fixes from git.git
171 lines
3.9 KiB
Tcl
171 lines
3.9 KiB
Tcl
# git-gui simple class/object fake-alike
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# Copyright (C) 2007 Shawn Pearce
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proc class {class body} {
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if {[namespace exists $class]} {
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error "class $class already declared"
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}
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namespace eval $class {
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variable __nextid 0
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variable __sealed 0
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variable __field_list {}
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variable __field_array
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proc cb {name args} {
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upvar this this
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set args [linsert $args 0 $name $this]
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return [uplevel [list namespace code $args]]
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}
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}
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namespace eval $class $body
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}
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proc field {name args} {
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set class [uplevel {namespace current}]
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variable ${class}::__sealed
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variable ${class}::__field_array
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switch [llength $args] {
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0 { set new [list $name] }
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1 { set new [list $name [lindex $args 0]] }
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default { error "wrong # args: field name value?" }
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}
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if {$__sealed} {
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error "class $class is sealed (cannot add new fields)"
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}
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if {[catch {set old $__field_array($name)}]} {
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variable ${class}::__field_list
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lappend __field_list $new
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set __field_array($name) 1
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} else {
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error "field $name already declared"
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}
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}
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proc constructor {name params body} {
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set class [uplevel {namespace current}]
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set ${class}::__sealed 1
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variable ${class}::__field_list
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set mbodyc {}
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append mbodyc {set this } $class
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append mbodyc {::__o[incr } $class {::__nextid]} \;
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append mbodyc {namespace eval $this {}} \;
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if {$__field_list ne {}} {
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append mbodyc {upvar #0}
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foreach n $__field_list {
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set n [lindex $n 0]
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append mbodyc { ${this}::} $n { } $n
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regsub -all @$n\\M $body "\${this}::$n" body
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}
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append mbodyc \;
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foreach n $__field_list {
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if {[llength $n] == 2} {
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append mbodyc \
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{set } [lindex $n 0] { } [list [lindex $n 1]] \;
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}
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}
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}
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append mbodyc $body
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namespace eval $class [list proc $name $params $mbodyc]
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}
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proc method {name params body {deleted {}} {del_body {}}} {
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set class [uplevel {namespace current}]
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set ${class}::__sealed 1
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variable ${class}::__field_list
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set params [linsert $params 0 this]
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set mbodyc {}
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switch $deleted {
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{} {}
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ifdeleted {
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append mbodyc {if {![namespace exists $this]} }
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append mbodyc \{ $del_body \; return \} \;
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}
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default {
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error "wrong # args: method name args body (ifdeleted body)?"
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}
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}
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set decl {}
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foreach n $__field_list {
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set n [lindex $n 0]
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if {[regexp -- $n\\M $body]} {
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if { [regexp -all -- $n\\M $body] == 1
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&& [regexp -all -- \\\$$n\\M $body] == 1
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&& [regexp -all -- \\\$$n\\( $body] == 0} {
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regsub -all \\\$$n\\M $body "\[set \${this}::$n\]" body
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} else {
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append decl { ${this}::} $n { } $n
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regsub -all @$n\\M $body "\${this}::$n" body
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}
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}
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}
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if {$decl ne {}} {
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append mbodyc {upvar #0} $decl \;
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}
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append mbodyc $body
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namespace eval $class [list proc $name $params $mbodyc]
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}
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proc delete_this {{t {}}} {
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if {$t eq {}} {
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upvar this this
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set t $this
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}
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if {[namespace exists $t]} {namespace delete $t}
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}
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proc make_toplevel {t w args} {
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upvar $t top $w pfx this this
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if {[llength $args] % 2} {
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error "make_toplevel topvar winvar {options}"
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}
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set autodelete 1
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foreach {name value} $args {
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switch -exact -- $name {
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-autodelete {set autodelete $value}
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default {error "unsupported option $name"}
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}
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}
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if {[winfo ismapped .]} {
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regsub -all {::} $this {__} w
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set top .$w
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set pfx $top
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toplevel $top
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} else {
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set top .
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set pfx {}
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}
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if {$autodelete} {
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wm protocol $top WM_DELETE_WINDOW "
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[list delete_this $this]
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[list destroy $top]
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"
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}
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}
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## auto_mkindex support for class/constructor/method
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##
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auto_mkindex_parser::command class {name body} {
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variable parser
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variable contextStack
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set contextStack [linsert $contextStack 0 $name]
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$parser eval [list _%@namespace eval $name] $body
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set contextStack [lrange $contextStack 1 end]
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}
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auto_mkindex_parser::command constructor {name args} {
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variable index
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variable scriptFile
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append index [list set auto_index([fullname $name])] \
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[format { [list source [file join $dir %s]]} \
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[file split $scriptFile]] "\n"
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}
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