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jnschaeffer/err-consumer.go

Created January 24, 2015 21:25
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err-consumer.go
package main
import (
"fmt"
"log"
"strconv"
)
type errConsumer struct {
err error
}
func (e *errConsumer) Consume(err error) {
if e.err == nil && err != nil {
e.err = err
}
}
func main() {
var e errConsumer
a, err := strconv.Atoi("123")
e.Consume(err)
b, err := strconv.Atoi("234a")
e.Consume(err)
c, err := strconv.Atoi("345")
e.Consume(err)
if e.err != nil {
log.Fatal(e.err)
}
fmt.Println("Hello, playground", a, b, c)
}
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