executor

type Engine interface {
	// Execute runs the query and closes the results channel once done.
	Execute(
		ctx context.Context,
		query *storage.FetchQuery,
		opts *QueryOptions,
		results chan *storage.QueryResult,
	)

	// ExecuteExpr runs the query DAG and closes the results channel once done.
	ExecuteExpr(
		ctx context.Context,
		parser parser.Parser,
		opts *QueryOptions,
		params models.RequestParams,
		results chan Query,
	)

	// Close kills all running queries and prevents new queries from being attached.
	Close() error
}

type EngineOptions interface {
	// CostScopte returns the scope used for metrics.
	CostScope() tally.Scope
	// SetCostScope sets the scope used for metrics.
	SetCostScope(tally.Scope) EngineOptions

	// GlobalEnforcer returns the query cost enforcer.
	GlobalEnforcer() qcost.ChainedEnforcer
	// SetGlobalEnforcer sets the query cost enforcer.
	SetGlobalEnforcer(qcost.ChainedEnforcer) EngineOptions

	// Store returns the storage.
	Store() storage.Storage
	// SetStore sets the storage.
	SetStore(storage.Storage) EngineOptions

	// LookbackDuration returns the query lookback duration.
	LookbackDuration() time.Duration
	// SetLookbackDuration sets the query lookback duration.
	SetLookbackDuration(time.Duration) EngineOptions
}

type ExecutionState struct {
	// contains filtered or unexported fields
}

type Query struct {
	Err    error
	Result Result
}

type QueryOptions struct {
	QueryContextOptions models.QueryContextOptions
}

type Request struct {
	// contains filtered or unexported fields
}

type Result interface {
	ResultChan() chan ResultChan
	// contains filtered or unexported methods
}

type ResultChan struct {
	Block block.Block
	Err   error
}

type ResultNode struct {
	// contains filtered or unexported fields
}

type ScalarParams interface {
	parser.Params
	Node(
		controller *transform.Controller,
		options transform.Options,
	) parser.Source
}

type SourceParams interface {
	parser.Params
	Node(
		controller *transform.Controller,
		storage storage.Storage,
		options transform.Options,
	) parser.Source
}

type State int