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config_option.go
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config_option.go
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/*
*Copyright (c) 2022, kaydxh
*
*Permission is hereby granted, free of charge, to any person obtaining a copy
*of this software and associated documentation files (the "Software"), to deal
*in the Software without restriction, including without limitation the rights
*to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
*copies of the Software, and to permit persons to whom the Software is
*furnished to do so, subject to the following conditions:
*
*The above copyright notice and this permission notice shall be included in all
*copies or substantial portions of the Software.
*
*THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
*IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
*FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
*AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
*LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
*OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
*SOFTWARE.
*/
package opentelemetry
// A ConfigOption sets options.
type ConfigOption interface {
apply(*Config)
}
// EmptyConfigOption does not alter the configuration. It can be embedded
// in another structure to build custom options.
//
// This API is EXPERIMENTAL.
type EmptyConfigOption struct{}
func (EmptyConfigOption) apply(*Config) {}
// ConfigOptionFunc wraps a function that modifies Client into an
// implementation of the ConfigOption interface.
type ConfigOptionFunc func(*Config)
func (f ConfigOptionFunc) apply(do *Config) {
f(do)
}
// sample code for option, default for nothing to change
func _ConfigOptionWithDefault() ConfigOption {
return ConfigOptionFunc(func(*Config) {
// nothing to change
})
}
func (o *Config) ApplyOptions(options ...ConfigOption) *Config {
for _, opt := range options {
if opt == nil {
continue
}
opt.apply(o)
}
return o
}