Explicit Variables again
Richard Gaskin
ambassador at fourthworld.com
Thu Oct 18 14:45:18 EDT 2012
I wouldn't worry too much about making your scripts "compliant" with
explicitvars.
There are probably some users who run with it on, but not many.
The IDE itself doesn't really use it except during compilation only, it
seems - here's where the dizzyingly long chain of commands that gets
invoked when you click "Apply" finally sets the script, handled here in
button "Template Editor" of stack "revscripteditor.rev":
command scriptCompile pObject
lock screen
lock messages
local tOldPreserveVariables, tOldExplicitVariables
put the preserveVariables into tOldPreserveVariables
put the explicitVariables into tOldExplicitVariables
set the preserveVariables to sePrefGet("preserveVariables")
set the explicitVariables to sePrefGet("explicitVariables")
local tScript
scriptGet pObject
put the result into tScript
local tResult
set the script of button "revCompileObject" of me to tScript
put the result into tResult
if tResult is empty then
put the revAvailableHandlers of button "revCompileObject" of me
into sHandlerList
end if
set the preserveVariables to tOldPreserveVariables
set the explicitVariables to tOldExplicitVariables
# The script should be unset because it could cause issues with idle
handlers
set the script of button "revCompileObject" of me to empty
unlock messages
unlock screen
return tResult
end scriptCompile
IIRC, explicitvars were seen as too cumbersome to work with, since as a
truly global property the required that EVERYTHING you're using comply
with it, and too many plugins didn't.
So rather than require every developer to comply with the requirements
of explicitvars just in case, they came up with that clever trick of
turning it on only during compilation, and immediately turning it back
off again (or to whatever its value was, which is usually off since most
folks who turn it "on" do so from Prefs, where it's not really "on"
until that moment of compilation.
In brief, I'd just blow it off and move on to other tasks....
--
Richard Gaskin
Fourth World Systems
Software Design and Development for the Desktop, Mobile, and the Web
____________________________________________________________________
Ambassador at FourthWorld.com http://www.FourthWorld.com
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