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33 lines
549 B
Go
33 lines
549 B
Go
package main
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import (
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"fmt"
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)
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type Config struct {
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items map[string]interface{}
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}
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func (c *Config) hasKey(key string) bool {
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if c.items == nil {
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return false
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}
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_, ok := c.items[key]
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return ok
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}
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func (c *Config) setUnique(key string, value interface{}) error {
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if c.hasKey(key) {
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return fmt.Errorf("the name %s is already defined in this scope", key)
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}
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c.set(key, value)
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return nil
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}
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func (c *Config) set(key string, value interface{}) {
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if c.items == nil {
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c.items = make(map[string]interface{}, 12)
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}
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c.items[key] = value
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}
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