Struct prog

cel/program.go:173–202

prog is the internal implementation of the Program interface.

// prog is the internal implementation of the Program interface.
type prog struct {
	*Env
	evalOpts                EvalOption
	defaultVars             Activation
	dispatcher              interpreter.Dispatcher
	interpreter             interpreter.Interpreter
	interruptCheckFrequency uint

	// Intermediate state used to configure the InterpretableDecorator set provided
	// to the initInterpretable call.
	plannerOptions     []interpreter.PlannerOption
	regexOptimizations []*interpreter.RegexOptimization

	// Interpretable configured from an Ast and aggregate decorator set based on program options.
	interpretable     interpreter.InterpretableV2
	observable        *interpreter.ObservableInterpretable
	callCostEstimator interpreter.ActualCostEstimator
	costOptions       []interpreter.CostTrackerOption
	costLimit         *uint64

	// hasAsync indicates the planned expression contains an asynchronous function call, which can
	// only be resolved by ConcurrentEval.
	hasAsync bool

	// Async evaluation configuration used by ConcurrentEval.
	drainStrategy             async.DrainStrategy
	asyncObserver             async.Observer
	asyncCompletionBufferSize int
	asyncMaxConcurrency       int
}

// scanOptTargets walks the AST once and reports whether the Optimize()
// decorator (needOpt) and the regex-constant compiler (needRegex) have any