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Function `dmd.dfa.fast.expression.ExpressionWalker.walkCondition`

Walks an expression that is used for a condition i.e. and if statement. Tells you if the expression for the gate variable, will be exact, vs negated state. Applying by test is for when (expr) > 0, use 0 for unknown, 1 is <= 0 and 2 is > 0


						
				dmd.dfa.fast.structure.DFALatticeRef walkCondition(
				
  Expression expr,
				
  out int predicateNegation
				

				);

Returns

0 for unknown negation, 1 or has been negated from gate variable or 2 if it hasn't been.

Authors

Richard (Rikki) Andrew Cattermole

License

Boost License 1.0