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When we convert a string containing February 29th to a date, it "rolls forward" to March 1st. Here's a testcase. The first assignment works fine. The second turns Feb 29 into March 1. The third does the same thing, even though 2011 isn't a leap year. handler TestRUI type RUIHandler { onConstructionFunction = start } function start() d date; d = "02/28/2012"; SysLib.writeStdout( d ); d = "02/29/2012"; SysLib.writeStdout( d ); d = "02/29/2011"; SysLib.writeStdout( d ); end end
Fixed with changes to the runtime (egl.processFunction and helper functions). We now add a property to the Date object to keep track of when we've seen Feb 29. Once we're done parsing, if the flag is set we make sure the year is a leap year and then reset the date to Feb 29 because it may have rolled forward. The testcase now correctly assigns 02/29/2012 in the second assignment. The third assignment now correctly throws an exception (because 2011 isn't a leap year, so it doesn't have a Feb 29).
Closing.
