errors.go

Documentation: cuelang.org/go/encoding/protobuf

     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  package protobuf
    16  
    17  import (
    18  	"fmt"
    19  	"strings"
    20  
    21  	"cuelang.org/go/cue/token"
    22  )
    23  
    24  // protobufError implements cue/Error
    25  type protobufError struct {
    26  	path []string
    27  	pos  token.Pos
    28  	err  error
    29  }
    30  
    31  func (e *protobufError) Position() token.Pos {
    32  	return e.pos
    33  }
    34  
    35  func (e *protobufError) InputPositions() []token.Pos {
    36  	return nil
    37  }
    38  
    39  func (e *protobufError) Error() string {
    40  	if e.path == nil {
    41  		return fmt.Sprintf("protobuf: %s: %v", e.pos, e.err)
    42  	}
    43  	path := strings.Join(e.path, ".")
    44  	return fmt.Sprintf("protobuf: %s:%s: %v", e.pos, path, e.err)
    45  }
    46  
    47  func (e *protobufError) Path() []string {
    48  	return e.path
    49  }
    50  
    51  func (e *protobufError) Msg() (format string, args []interface{}) {
    52  	return "error parsing protobuf: %v", []interface{}{e.err}
    53  }
    54
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