self-referential recursion in "unknown" for command "::namespace"
    while executing
"::namespace current"
    ("uplevel" body line 1)
    invoked from within
"uplevel 1 {::namespace current}"
    (autoloading "::namespace")
    (procedure "::unknown" line 22)
    invoked from within
"::namespace current"
    ("uplevel" body line 1)
    invoked from within
"uplevel 1 {::namespace current}"
    (autoloading "namespace")
    (procedure "::unknown" line 22)
    invoked from within
"namespace eval ::request $script"
    ("::try" body line 12)
OUTPUT BUFFER:
if {![package vsatisfies [package provide Tcl] 8.4]} {
    # PRAGMA: returnok
    return
}
package ifneeded treeql 1.3.1 [list source [file join $dir treeql.tcl]]