Introduce reducer.Reducer interface and update the engine to use abstract expr.Expression and reducer.Reducer types, enabling pluggable reduction strategies. - Add pkg/reducer/reducer.go with Reducer interface. - Add pkg/lambda/reducer.go with NormalOrderReducer implementation. - Update engine to accept expr.Expression and reducer.Reducer. - Update plugins to use expr.Expression directly (no pointer dereference). - Update main and tests to pass reducer to engine. Closes #30
24 lines
413 B
Go
24 lines
413 B
Go
package plugins
|
|
|
|
import (
|
|
"log/slog"
|
|
|
|
"git.maximhutz.com/max/lambda/internal/engine"
|
|
)
|
|
|
|
type Logs struct {
|
|
logger *slog.Logger
|
|
process *engine.Engine
|
|
}
|
|
|
|
func NewLogs(logger *slog.Logger, process *engine.Engine) *Logs {
|
|
plugin := &Logs{logger, process}
|
|
process.On(engine.StepEvent, plugin.Step)
|
|
|
|
return plugin
|
|
}
|
|
|
|
func (t *Logs) Step() {
|
|
t.logger.Info("reduction", "tree", t.process.Expression.String())
|
|
}
|