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70 lines
1.5 KiB
70 lines
1.5 KiB
// ------------------------------------------------------------------------
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// Project active2
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// Active Thing (activething.com) git.activething.com/go
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//
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// File name value_provider.go
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// Created by DEV
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// Modified 19/03/2024
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//
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// Copyright 2024 activething.com
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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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// ------------------------------------------------------------------------
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package vals
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type (
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Valuer interface {
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Value() any
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}
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ValueFnc func() any
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)
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func (f ValueFnc) Value() any {
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return f()
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}
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func AsValuer(value any) Valuer {
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if value == nil {
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return ValueFnc(nopValue)
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}
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switch v := value.(type) {
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case Valuer:
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return v
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case func() any:
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return ValueFnc(v)
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default:
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return ValueFnc(func() any { return value })
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}
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}
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func AsValue(value any) any {
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if value == nil {
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return nil
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}
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if vl, is := value.(Valuer); is {
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return vl.Value()
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}
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if vl, is := value.(func() any); is {
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return vl()
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}
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return value
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}
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func nopValue() any {
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return nil
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}
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