Files
lambda/pkg/convert/saccharine_to_debruijn.go
M.V. Hutz f3b9137d75 feat: add De Bruijn index reduction engine
Closes #26

- Added -i flag to select interpreter (lambda or debruijn)
- Created debruijn package with Expression interface
  - Variable contains index and optional label
  - Abstraction contains only body (no parameter)
  - Application structure remains similar
- Implemented De Bruijn reduction without variable renaming
  - Shift operation handles index adjustments
  - Substitute replaces by index instead of name
- Abstracted Engine into interface with two implementations
  - LambdaEngine: original named variable engine
  - DeBruijnEngine: new index-based engine
- Added conversion functions between representations
  - LambdaToDeBruijn: converts named to indexed
  - DeBruijnToLambda: converts indexed back to named
  - SaccharineToDeBruijn: direct saccharine to De Bruijn
- Updated main to switch engines based on -i flag
- All test samples pass with both engines

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
2026-01-12 21:27:40 -05:00

13 lines
364 B
Go

package convert
import (
"git.maximhutz.com/max/lambda/pkg/debruijn"
"git.maximhutz.com/max/lambda/pkg/saccharine"
)
// SaccharineToDeBruijn converts a saccharine expression directly to De Bruijn indices.
func SaccharineToDeBruijn(expr saccharine.Expression) debruijn.Expression {
lambdaExpr := SaccharineToLambda(expr)
return LambdaToDeBruijn(lambdaExpr)
}