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29 lines
741 B
Go
29 lines
741 B
Go
package errors
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import (
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"fmt"
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A "github.com/IBM/fp-go/array"
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)
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// OnNone generates a nullary function that produces a formatted error
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func OnNone(msg string, args ...any) func() error {
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return func() error {
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return fmt.Errorf(msg, args...)
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}
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}
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// OnError generates a unary function that produces a formatted error. The argument
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// to that function is the root cause of the error and the message will be augmented with
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// a format string containing %w
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func OnError(msg string, args ...any) func(error) error {
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return func(err error) error {
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return fmt.Errorf(msg+", Caused By: %w", A.ArrayConcatAll(args, A.Of[any](err))...)
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}
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}
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// ToString converts an error to a string
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func ToString(err error) string {
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return err.Error()
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}
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