M.V. Hutz
e85cf7ceff
## Summary - Change Abstraction, Application, and Variable to use private fields with getter methods. - Return value types instead of pointers from constructors. - Update all type switches to match value types instead of pointer types. ## Test plan - [x] All existing tests pass (`make test`). Reviewed-on: #38 Co-authored-by: M.V. Hutz <git@maximhutz.me> Co-committed-by: M.V. Hutz <git@maximhutz.me>
28 lines
835 B
Go
28 lines
835 B
Go
// Package interpreter provides the abstract Reducer interface for all expression
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// reduction strategies.
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package interpreter
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import (
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"git.maximhutz.com/max/lambda/pkg/emitter"
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"git.maximhutz.com/max/lambda/pkg/expr"
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)
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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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//
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// Reducers also implement the Emitter interface to allow plugins to observe
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// reduction lifecycle events (Start, Step, Stop).
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type Interpreter interface {
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emitter.Emitter[Event]
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// Run a single step. Returns whether the interpreter is complete or not.
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Step() bool
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// Run until completion.
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Run()
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// Expression returns the current expression state.
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Expression() expr.Expression
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}
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