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%if statement (SDL script)
This topic applies to TDK SDL script extensions. For more information, see Overview of SDL script extensions for TDK (SDL script).
SDL Script Extensions for TDK:
%if A == B %then
%warning "A and B are the same"
%elseif B == C %then
%warning "A is not equal to B, but B and C are the same"
%elseif C == D %then
%warning "A is not equal to B, nor B is equal to C, but C and D are the same"
%elseif ANumericVar %then
%warning "ANumericVar is not zero"
%elseif AnObjectVar %then
%warning "AnObjectVar is not %null"
%elseif AListVar %then
%warning "AListVar is not empty"
%elseif AStringVar %then $ ILLEGAL – strings are not convertible to Boolean
$ will raise an error at runtime
...
%else
%warning "None of the above conditions was met"
%endif
The %elseif keyword simplifies conditional paths.
Arguments of conditions can be as follows:
• Comparison results returned by ==, !=, >=, etc.
• Logical tests returns by %hasstereotype, %inlist, %matchcase, etc.
• Numeric values (0 = false, otherwise true)
• Object values (%null = false, otherwise true)
• List values (empty list = false, otherwise true)