M.V. Hutz
361f529bdc
## Summary - Added doc comments across the codebase: `pkg/lambda`, `pkg/saccharine`, `pkg/codec`, `pkg/engine`, `pkg/iterator`, `pkg/set`, `pkg/convert`, `internal/registry`, and `cmd/lambda`. - Made lambda and saccharine expression structs use public fields instead of getters, matching `go/ast` conventions. - Removed superfluous constructors for saccharine and lambda expression/statement types in favor of struct literals. - Consolidated saccharine token constructors into a single `NewToken` function. - Removed the unused `trace` package. ## Test plan - [x] `go build ./...` passes. - [x] `go test ./...` passes. - [ ] Verify `go doc` output renders correctly for documented packages. Reviewed-on: #45 Co-authored-by: M.V. Hutz <git@maximhutz.me> Co-committed-by: M.V. Hutz <git@maximhutz.me>
27 lines
777 B
Go
27 lines
777 B
Go
package registry
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// An Expr is a type-erased lambda calculus expression. It can have any type of
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// representation, so long as that type is known to the registry it is handled
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// by.
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type Expr interface {
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// Repr returns the name of the underlying representation. Two expressions
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// with the same Repr() are assumed to have the same representation type.
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Repr() string
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// Data returns the underlying expression data.
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Data() any
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}
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// A baseExpr is the default implementation of Expr.
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type baseExpr struct {
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id string
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data any
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}
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func (e baseExpr) Repr() string { return e.id }
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func (e baseExpr) Data() any { return e.data }
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// NewExpr creates an Expr with the given representation name and data.
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func NewExpr(id string, data any) Expr { return baseExpr{id, data} }
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