github.com/cockroachdb/cockroach@v20.2.0-alpha.1+incompatible/pkg/testutils/lint/passes/hash/testdata/src/a/a.go (about)

     1  // Copyright 2019 The Cockroach Authors.
     2  //
     3  // Use of this software is governed by the Business Source License
     4  // included in the file licenses/BSL.txt.
     5  //
     6  // As of the Change Date specified in that file, in accordance with
     7  // the Business Source License, use of this software will be governed
     8  // by the Apache License, Version 2.0, included in the file
     9  // licenses/APL.txt.
    10  
    11  package a
    12  
    13  import "crypto/sha256"
    14  
    15  func init() {
    16  	var inputBytes, hashedBytes []byte
    17  	_ = hashedBytes
    18  
    19  	{
    20  		h := sha256.New()
    21  		h.Write(inputBytes)
    22  		hashedBytes = h.Sum(nil)
    23  	}
    24  
    25  	{
    26  		h := sha256.New()
    27  		h.Write(inputBytes)
    28  		var hashedBytes [sha256.Size]byte
    29  		h.Sum(hashedBytes[:0])
    30  	}
    31  
    32  	{
    33  		hashedBytes = sha256.New().Sum(inputBytes) // want `probable misuse of hash.Hash.Sum: provide parameter or use return value, but not both`
    34  	}
    35  }