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'''Symbol handling transformations.'''





from transf import parse

import ir.match





parse.Transfs('''



#######################################################################

# Local variable table



shared local as table



# TODO: detect local variables from scope rules

isReg = annotation.Has(?Reg)

isTmp = annotation.Has(?Tmp)



isLocalVar =

	ir.match.aSym ;

	(isReg + isTmp)



updateLocalVar =

	isLocalVar ;

	Where(local.set [_,_] )



updateLocalVars =

	local.clear ;

	traverse.AllTD(updateLocalVar)



EnterFunction(operand) =

	with local in

		updateLocalVars ;

		operand

	end



EnterModule(operand) = EnterFunction(operand)



''')