diffcore-rename: cache file deltas

diff --git a/git-gui/lib/class.tcl b/git-gui/lib/class.tcl
index 72494c1a1ea51ec004a63f08f2c62db9096c2318..dc2141192a21e7416268cc94beda78d6ceb8f86f 100644 (file)
--- a/git-gui/lib/class.tcl
+++ b/git-gui/lib/class.tcl
@@ -5,7 +5,7 @@ proc class {class body} {
        if {[namespace exists $class]} {
                error "class $class already declared"
        }
-       namespace eval $class {
+       namespace eval $class "
                variable __nextid     0
                variable __sealed     0
                variable __field_list {}
@@ -13,10 +13,9 @@ proc class {class body} {
 
                proc cb {name args} {
                        upvar this this
-                       set args [linsert $args 0 $name $this]
-                       return [uplevel [list namespace code $args]]
+                       concat \[list ${class}::\$name \$this\] \$args
                }
-       }
+       "
        namespace eval $class $body
 }
 
@@ -51,15 +50,16 @@ proc constructor {name params body} {
        set mbodyc {}
 
        append mbodyc {set this } $class
-       append mbodyc {::__o[incr } $class {::__nextid]} \;
-       append mbodyc {namespace eval $this {}} \;
+       append mbodyc {::__o[incr } $class {::__nextid]::__d} \;
+       append mbodyc {create_this } $class \;
+       append mbodyc {set __this [namespace qualifiers $this]} \;
 
        if {$__field_list ne {}} {
                append mbodyc {upvar #0}
                foreach n $__field_list {
                        set n [lindex $n 0]
-                       append mbodyc { ${this}::} $n { } $n
-                       regsub -all @$n\\M $body "\${this}::$n" body
+                       append mbodyc { ${__this}::} $n { } $n
+                       regsub -all @$n\\M $body "\${__this}::$n" body
                }
                append mbodyc \;
                foreach n $__field_list {
@@ -80,10 +80,12 @@ proc method {name params body {deleted {}} {del_body {}}} {
        set params [linsert $params 0 this]
        set mbodyc {}
 
+       append mbodyc {set __this [namespace qualifiers $this]} \;
+
        switch $deleted {
        {} {}
        ifdeleted {
-               append mbodyc {if {![namespace exists $this]} }
+               append mbodyc {if {![namespace exists $__this]} }
                append mbodyc \{ $del_body \; return \} \;
        }
        default {
@@ -98,10 +100,12 @@ proc method {name params body {deleted {}} {del_body {}}} {
                        if {   [regexp -all -- $n\\M $body] == 1
                                && [regexp -all -- \\\$$n\\M $body] == 1
                                && [regexp -all -- \\\$$n\\( $body] == 0} {
-                               regsub -all \\\$$n\\M $body "\[set \${this}::$n\]" body
+                               regsub -all \
+                                       \\\$$n\\M $body \
+                                       "\[set \${__this}::$n\]" body
                        } else {
-                               append decl { ${this}::} $n { } $n
-                               regsub -all @$n\\M $body "\${this}::$n" body
+                               append decl { ${__this}::} $n { } $n
+                               regsub -all @$n\\M $body "\${__this}::$n" body
                        }
                }
        }
@@ -112,26 +116,55 @@ proc method {name params body {deleted {}} {del_body {}}} {
        namespace eval $class [list proc $name $params $mbodyc]
 }
 
+proc create_this {class} {
+       upvar this this
+       namespace eval [namespace qualifiers $this] [list proc \
+               [namespace tail $this] \
+               [list name args] \
+               "eval \[list ${class}::\$name $this\] \$args" \
+       ]
+}
+
 proc delete_this {{t {}}} {
        if {$t eq {}} {
                upvar this this
                set t $this
        }
+       set t [namespace qualifiers $t]
        if {[namespace exists $t]} {namespace delete $t}
 }
 
-proc make_toplevel {t w} {
-       upvar $t top $w pfx
-       if {[winfo ismapped .]} {
-               upvar this this
+proc make_toplevel {t w args} {
+       upvar $t top $w pfx this this
+
+       if {[llength $args] % 2} {
+               error "make_toplevel topvar winvar {options}"
+       }
+       set autodelete 1
+       foreach {name value} $args {
+               switch -exact -- $name {
+               -autodelete {set autodelete $value}
+               default     {error "unsupported option $name"}
+               }
+       }
+
+       if {$::root_exists || [winfo ismapped .]} {
                regsub -all {::} $this {__} w
                set top .$w
                set pfx $top
                toplevel $top
+               set ::root_exists 1
        } else {
                set top .
                set pfx {}
        }
+
+       if {$autodelete} {
+               wm protocol $top WM_DELETE_WINDOW "
+                       [list delete_this $this]
+                       [list destroy $top]
+               "
+       }
 }