30 lines
527 B
Go
30 lines
527 B
Go
package ucl
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import (
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"context"
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"fmt"
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)
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func EvalAndDisplay(ctx context.Context, inst *Inst, expr string) error {
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res, err := inst.eval(ctx, expr)
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if err != nil {
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return err
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}
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return displayResult(ctx, inst, res)
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}
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func displayResult(ctx context.Context, inst *Inst, res object) (err error) {
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switch v := res.(type) {
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case nil:
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if _, err = fmt.Fprintln(inst.out, "(nil)"); err != nil {
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return err
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}
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default:
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if _, err = fmt.Fprintln(inst.out, v.String()); err != nil {
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return err
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}
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}
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return nil
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}
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