21 lines
353 B
Go
21 lines
353 B
Go
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package repl
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import (
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"fmt"
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"io"
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"reflect"
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)
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func AddTypePrinter[T any](r *REPL, p func(w io.Writer, t T, concise bool) error) {
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var t T
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tt := reflect.TypeOf(t)
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r.typePrinters[tt] = func(w io.Writer, v any, concise bool) error {
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vt, ok := v.(T)
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if !ok {
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return fmt.Errorf("cannot convert %v to T", v)
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}
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return p(w, vt, concise)
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}
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}
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