github.com/joomcode/cue@v0.4.4-0.20221111115225-539fe3512047/cue/scanner/fuzz.go (about)

     1  // Copyright 2019 CUE Authors
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  //go:build gofuzz
    16  // +build gofuzz
    17  
    18  package scanner
    19  
    20  import (
    21  	"github.com/joomcode/cue/cue/token"
    22  )
    23  
    24  func Fuzz(b []byte) int {
    25  	retCode := 1
    26  	eh := func(_ token.Pos, msg string, args []interface{}) {
    27  		retCode = 0
    28  	}
    29  
    30  	var s Scanner
    31  	s.Init(token.NewFile("", 1, len(b)), b, eh, ScanComments)
    32  
    33  	for {
    34  		_, tok, _ := s.Scan()
    35  		if tok == token.EOF {
    36  			break
    37  		}
    38  	}
    39  	return retCode
    40  }