OpenEuphoria

Empty procedure optimized out?

• Posted by Tommy Carlier <tommy.carlier at telenet.be> Nov 19, 2004
• 562 views

Robert, couldn't you remove calls to empty procedures while parsing
a program? I have a procedure to ignore the return value of a function,
that looks like this:

global procedure ignore(object ignored)
	-- ignores its parameter
end procedure

And it's used like this:

ignore(someFunction(someParameter1, someParameter2))

The function 'someFunction' should be executed, but the call to the
empty procedure could be removed. That could also optimize this
situation:

constant DEBUG = 0

procedure writeToLog(sequence line)
	if DEBUG then
		puts(logfile, line & '\n')
	end if
end procedure

'if DEBUG then' can be removed, because you know before running the
code than it will never be called. That makes the 'writeToLog'-procedure
an empty procedure that can be optimized out.

--
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