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44 lines
1.3 KiB
Go
44 lines
1.3 KiB
Go
// Copyright (c) 2023 IBM Corp.
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// All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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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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