M.V. Hutz
a61809ad1d
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
16 lines
627 B
Go
16 lines
627 B
Go
// Package reducer provides the abstract Reducer interface for all expression
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// reduction strategies.
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package reducer
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import "git.maximhutz.com/max/lambda/pkg/expr"
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// Reducer defines the interface for expression reduction strategies.
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// Different evaluation modes (normal order, applicative order, SKI combinators,
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// etc.) implement this interface with their own reduction logic.
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type Reducer interface {
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// Reduce performs all reduction steps on the expression, calling onStep
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// after each reduction.
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// Returns the final reduced expression.
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Reduce(e expr.Expression, onStep func(expr.Expression)) expr.Expression
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}
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