golang.org/x/tools@v0.21.0/refactor/eg/testdata/A1.golden (about)

     1  package A1
     2  
     3  import (
     4  	"errors"
     5  	. "fmt"
     6  	myfmt "fmt"
     7  	"os"
     8  	"strings"
     9  )
    10  
    11  func example(n int) {
    12  	x := "foo" + strings.Repeat("\t", n)
    13  	// Match, despite named import.
    14  	errors.New(x)
    15  
    16  	// Match, despite dot import.
    17  	errors.New(x)
    18  
    19  	// Match: multiple matches in same function are possible.
    20  	errors.New(x)
    21  
    22  	// No match: wildcarded operand has the wrong type.
    23  	myfmt.Errorf("%s", 3)
    24  
    25  	// No match: function operand doesn't match.
    26  	myfmt.Printf("%s", x)
    27  
    28  	// No match again, dot import.
    29  	Printf("%s", x)
    30  
    31  	// Match.
    32  	myfmt.Fprint(os.Stderr, errors.New(x+"foo"))
    33  
    34  	// No match: though this literally matches the template,
    35  	// fmt doesn't resolve to a package here.
    36  	var fmt struct{ Errorf func(string, string) }
    37  	fmt.Errorf("%s", x)
    38  
    39  	// Recursive matching:
    40  
    41  	// Match: both matches are well-typed, so both succeed.
    42  	errors.New(errors.New(x + "foo").Error())
    43  
    44  	// Outer match succeeds, inner doesn't: 3 has wrong type.
    45  	errors.New(myfmt.Errorf("%s", 3).Error())
    46  
    47  	// Inner match succeeds, outer doesn't: the inner replacement
    48  	// has the wrong type (error not string).
    49  	myfmt.Errorf("%s", errors.New(x+"foo"))
    50  }