Tring to organize the work needed to make the QueryCache useful by allowing
each InputParameterExpression to update it's own values from the updated
expression, I encountered the ExpressionMutatorFactory and all the
IMutableExpression implementations.

This is something I could not understand yet, about the DbLinq internals.

Why we need them?

I need to understand this, since to allow the closure to be updated via a
delegate taking the expression (if not the ExpressionChain), I need to pass
a lambda between the analizing method expressing how to reach the current
analized expression from the initial one.

Defining such a lambda should not be difficult by itself, but the
ExpressionMutatorFactory make it harder.


Giacomo

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