Metadata related to query execution. Note that AST should be lazy so as not to be evaluated
at runtime (which would happen with a by-value property since { ExecutionInfo(stuff, ast) } is spliced
into a query-execution site). Additionally, there are performance overheads even splicing the finalized
version of the AST into call sites of the run functions. For this reason, this functionality
is being used only in ProtoQuill and only when a trait extends the trait AstSplicing.
In the future it might potentially be controlled by a compiler argument.
Metadata related to query execution. Note that AST should be lazy so as not to be evaluated at runtime (which would happen with a by-value property since
{ ExecutionInfo(stuff, ast) } is spliced into a query-execution site). Additionally, there are performance overheads even splicing the finalized version of the AST into call sites of therunfunctions. For this reason, this functionality is being used only in ProtoQuill and only when a trait extends the trait AstSplicing. In the future it might potentially be controlled by a compiler argument.