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// Package main demonstrates basic usage of the errors package from github.com/olekukonko/errors.
// It showcases creating simple errors, formatted errors, errors with stack traces, and named errors,
// highlighting the package’s enhanced error handling capabilities.
package main
import (
"fmt"
"github.com/olekukonko/errors"
)
// main is the entry point of the program, illustrating various ways to create and use errors
// from the errors package, printing their outputs to demonstrate their behavior.
func main() {
// Simple error (no stack trace, fast)
// Creates a lightweight error without capturing a stack trace for optimal performance.
err := errors.New("connection failed")
fmt.Println(err) // Outputs: "connection failed"
// Formatted error
// Creates an error with a formatted message using a printf-style syntax, similar to fmt.Errorf.
err = errors.Newf("user %s not found", "bob")
fmt.Println(err) // Outputs: "user bob not found"
// Error with stack trace
// Creates an error and captures a stack trace at the point of creation for debugging purposes.
err = errors.Trace("critical issue")
fmt.Println(err) // Outputs: "critical issue"
fmt.Println(err.Stack()) // Outputs stack trace, e.g., ["main.go:15", "caller.go:42"]
// Named error
// Creates an error with a specific name and stack trace, useful for categorizing errors.
err = errors.Named("InputError")
fmt.Println(err.Name()) // Outputs: "InputError"
}
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