// Copyright 2019 CUE Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

//go:build gofuzz

package scanner

import (
	"cuelang.org/go/cue/token"
)

func Fuzz(b []byte) int {
	retCode := 1
	eh := func(_ token.Pos, msg string, args []interface{}) {
		retCode = 0
	}

	var s Scanner
	s.Init(token.NewFile("", -1, len(b)), b, eh, ScanComments)

	for {
		_, tok, _ := s.Scan()
		if tok == token.EOF {
			break
		}
	}
	return retCode
}