mirror of
https://github.com/golang/go
synced 2024-11-19 12:24:42 -07:00
23 lines
498 B
Plaintext
23 lines
498 B
Plaintext
|
// +build ignore
|
||
|
|
|
||
|
|
package C1
|
||
|
|
|
||
|
|
import "strings"
|
||
|
|
|
||
|
|
func example() {
|
||
|
|
x := "foo"
|
||
|
|
println(x)
|
||
|
|
|
||
|
|
// Match, but the transformation is not sound w.r.t. possible side effects.
|
||
|
|
println(strings.Repeat("*", 3))
|
||
|
|
|
||
|
|
// No match, since second use of wildcard doesn't match first.
|
||
|
|
println(strings.Repeat("*", 3)[:len(strings.Repeat("*", 2))])
|
||
|
|
|
||
|
|
// Recursive match demonstrating bottom-up rewrite:
|
||
|
|
// only after the inner replacement occurs does the outer syntax match.
|
||
|
|
println(x)
|
||
|
|
// -> (x[:len(x)])
|
||
|
|
// -> x
|
||
|
|
}
|