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authorandreas_kupries <akupries@shaw.ca>2009-11-05 20:15:36 (GMT)
committerandreas_kupries <akupries@shaw.ca>2009-11-05 20:15:36 (GMT)
commitb977ee0d9d914e5cd1ab95214d34b7f950d4c331 (patch)
treee7007b50e63fd3b02aaa984d1b646717fbbe2353 /library/safe.tcl
parentb9978f4d217439867aee45c210e1e6e5a18da3ec (diff)
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* library/safe.tcl: A series of patches which bring the SafeBase
up to date with code guidelines, Tcl's features, also eliminating a number of inefficiencies along the way. (8) Converted the path token system to cache normalized paths and path <-> token conversions. Removed more procedures not used any longer. Removed the test cases 4.3 and 4.4 from safe.test. They were testing the now deleted command "InterpStateName".
Diffstat (limited to 'library/safe.tcl')
-rw-r--r--library/safe.tcl166
1 files changed, 65 insertions, 101 deletions
diff --git a/library/safe.tcl b/library/safe.tcl
index c139f93..db4a41b 100644
--- a/library/safe.tcl
+++ b/library/safe.tcl
@@ -12,7 +12,7 @@
# See the file "license.terms" for information on usage and redistribution of
# this file, and for a DISCLAIMER OF ALL WARRANTIES.
#
-# RCS: @(#) $Id: safe.tcl,v 1.26 2009/11/05 20:04:41 andreas_kupries Exp $
+# RCS: @(#) $Id: safe.tcl,v 1.27 2009/11/05 20:15:36 andreas_kupries Exp $
#
# The implementation is based on namespaces. These naming conventions are
@@ -277,11 +277,13 @@ proc ::safe::InterpCreate {
# probably need to call "auto_reset" in the slave in order that it gets
# the right auto_index() array values.
-proc ::safe::InterpSetConfig {slave access_path staticsok\
- nestedok deletehook} {
+proc ::safe::InterpSetConfig {slave access_path staticsok nestedok deletehook} {
+ global auto_path
+
# determine and store the access path if empty
if {$access_path eq ""} {
- set access_path [uplevel \#0 set auto_path]
+ set access_path $auto_path
+
# Make sure that tcl_library is in auto_path and at the first
# position (needed by setAccessPath)
set where [lsearch -exact $access_path [info library]]
@@ -311,39 +313,43 @@ proc ::safe::InterpSetConfig {slave access_path staticsok\
InterpState $slave
# clear old autopath if it existed
- set nname [PathNumberName $slave]
- if {[Exists $nname]} {
- set n [Set $nname]
- for {set i 0} {$i<$n} {incr i} {
- Unset [PathToken $i $slave]
- }
- }
-
# build new one
- set slave_auto_path {}
- set i 0
- foreach dir $access_path {
- Set [PathToken $i $slave] $dir
- lappend slave_auto_path "\$[PathToken $i]"
- incr i
- }
# Extend the access list with the paths used to look for Tcl Modules.
# We save the virtual form separately as well, as syncing it with the
# slave has to be defered until the necessary commands are present for
# setup.
+
+ set norm_access_path {}
+ set slave_access_path {}
+ set map_access_path {}
+
+ set i 0
+ foreach dir $access_path {
+ set token [PathToken $i]
+ lappend slave_access_path $token
+ lappend map_access_path $token $dir
+ lappend norm_access_path [file normalize $dir]
+ incr i
+ }
+
+ # NOTE / TODO : Prevent addition of dirs on the tm list if they
+ # are already on the result list, i.e. known.
+
foreach dir [::tcl::tm::list] {
- lappend access_path $dir
- Set [PathToken $i $slave] $dir
- lappend slave_auto_path "\$[PathToken $i]"
- lappend slave_tm_path "\$[PathToken $i]"
+ set token [PathToken $i]
+ lappend access_path $dir
+ lappend slave_access_path $token
+ lappend map_access_path $token $dir
+ lappend norm_access_path [file normalize $dir]
+ lappend slave_tm_path $token
incr i
}
- Set $nname $i
set state(access_path) $access_path
- set state(access_path_slave) $slave_auto_path
+ set state(access_path,map) $map_access_path
+ set state(access_path,norm) $norm_access_path
+ set state(access_path,slave) $slave_access_path
set state(tm_path_slave) $slave_tm_path
-
set state(staticsok) $staticsok
set state(nestedok) $nestedok
set state(cleanupHook) $deletehook
@@ -358,13 +364,12 @@ proc ::safe::InterpSetConfig {slave access_path staticsok\
# "$")
proc ::safe::interpFindInAccessPath {slave path} {
InterpState $slave
- set access_path $state(access_path)
- set where [lsearch -exact $access_path $path]
- if {$where == -1} {
+ set where [lsearch -exact $state(access_path) $path]
+ if {$where < 0} {
return -code error "$path not found in access path $access_path"
}
- return "\$[PathToken $where]"
+ return [PathToken $where]
}
#
@@ -373,27 +378,24 @@ proc ::safe::interpFindInAccessPath {slave path} {
# virtual token (including the "$").
proc ::safe::interpAddToAccessPath {slave path} {
# first check if the directory is already in there
- try {
- # inline interpFindInAccessPath, avoid try/error
- return [interpFindInAccessPath $slave $path]
- } on error {} {
- # new one, add it:
- set nname [PathNumberName $slave]
- set n [Set $nname]
- Set [PathToken $n $slave] $path
-
- set token "\$[PathToken $n]"
+ # (inlined interpFindInAccessPath).
+ InterpState $slave
- InterpState $slave
- lappend state(access_path_slave) $token
- lappend state(access_path) $path
+ set where [lsearch -exact $state(access_path) $path]
+ if {$where >= 0} {
+ return [PathToken $where]
+ }
- Set $nname [expr {$n+1}]
+ # new one, add it:
+ set token [PathToken [llength $state(access_path)]]
- SyncAccessPath $slave
+ lappend state(access_path) $path
+ lappend state(access_path,slave) $token
+ lappend state(access_path,map) $token $path
+ lappend state(access_path,norm) [file normalize $path]
- return $token
- }
+ SyncAccessPath $slave
+ return $token
}
# This procedure applies the initializations to an already existing
@@ -558,7 +560,7 @@ proc ::safe::setLogCmd {args} {
proc ::safe::SyncAccessPath {slave} {
InterpState $slave
- set slave_access_path $state(access_path_slave)
+ set slave_access_path $state(access_path,slave)
::interp eval $slave [list set auto_path $slave_access_path]
Log $slave "auto_path in $slave has been set to $slave_access_path"\
@@ -572,14 +574,6 @@ proc ::safe::SyncAccessPath {slave} {
set tcl_library [lindex $slave_access_path 0]]
}
-# Base name for storing all the slave states. The array variable name for
-# slave foo is thus "Sfoo" and for sub slave {foo bar} "Sfoo bar" (spaces
-# are handled ok everywhere (or should)). We add the S prefix to avoid
-# that a slave interp called "Log" would smash our "Log" variable.
-proc ::safe::InterpStateName {slave} {
- return "S$slave"
-}
-
# base name for storing all the slave states
# the array variable name for slave foo is thus "Sfoo"
# and for sub slave {foo bar} "Sfoo bar" (spaces are handled
@@ -599,54 +593,28 @@ proc ::safe::IsInterp {slave} {
return [expr {[info exists state] && [::interp exists $slave]}]
}
-# Returns the virtual token for directory number N. If the slave argument
-# is given, it will return the corresponding master global variable name
-proc ::safe::PathToken {n {slave ""}} {
- if {$slave ne ""} {
- return "[InterpStateName $slave](access_path,$n)"
- } else {
- # We need to have a ":" in the token string so [file join] on the
- # mac won't turn it into a relative path.
- return "p(:$n:)"
- }
-}
-# returns the variable name of the number of items
-proc ::safe::PathNumberName {slave} {
- return "[InterpStateName $slave](access_path,n)"
-}
-# Run some code at the namespace toplevel
-proc ::safe::Toplevel {args} {
- namespace eval [namespace current] $args
-}
-# set/get values
-proc ::safe::Set {args} {
- Toplevel set {*}$args
-}
-# unset a var/token (currently just an global level eval)
-proc ::safe::Unset {args} {
- Toplevel unset {*}$args
-}
-# test existance
-proc ::safe::Exists {varname} {
- Toplevel info exists $varname
+# Returns the virtual token for directory number N.
+proc ::safe::PathToken {n} {
+ # We need to have a ":" in the token string so [file join] on the
+ # mac won't turn it into a relative path.
+ return "\$p(:$n:)" ;# Form tested by case 7.2
}
#
# translate virtual path into real path
#
proc ::safe::TranslatePath {slave path} {
+ InterpState $slave
+
# somehow strip the namespaces 'functionality' out (the danger is that
# we would strip valid macintosh "../" queries... :
if {[string match "*::*" $path] || [string match "*..*" $path]} {
error "invalid characters in path $path"
}
- set n [expr {[Set [PathNumberName $slave]]-1}]
- for {} {$n>=0} {incr n -1} {
- # fill the token virtual names with their real value
- set [PathToken $n] [Set [PathToken $n $slave]]
- }
- # replaces the token by their value
- subst -nobackslashes -nocommands $path
+
+ # Use a cached map instead of computed local vars and subst.
+
+ return [string map $state(access_path,map) $path]
}
@@ -904,11 +872,9 @@ proc ::safe::FileInAccessPath {slave file} {
# Normalize paths for comparison since lsearch knows nothing of
# potential pathname anomalies.
set norm_parent [file normalize $parent]
- foreach path $access_path {
- lappend norm_access_path [file normalize $path]
- }
- if {$norm_parent ni $norm_access_path} {
+ InterpState $slave
+ if {$norm_parent ni $state(access_path,norm)} {
error "\"$file\": not in access_path"
}
}
@@ -924,11 +890,9 @@ proc ::safe::DirInAccessPath {slave dir} {
# Normalize paths for comparison since lsearch knows nothing of
# potential pathname anomalies.
set norm_dir [file normalize $dir]
- foreach path $access_path {
- lappend norm_access_path [file normalize $path]
- }
- if {$norm_dir ni $norm_access_path} {
+ InterpState $slave
+ if {$norm_dir ni $state(access_path,norm)} {
error "\"$dir\": not in access_path"
}
}