1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
|
// Copyright 2020-2024 Buf Technologies, Inc.
//
// 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.
package reporter
import (
"errors"
"fmt"
"github.com/bufbuild/protocompile/ast"
)
// ErrInvalidSource is a sentinel error that is returned by compilation and
// stand-alone compilation steps (such as parsing, linking) when one or more
// errors is reported but the configured ErrorReporter always returns nil.
var ErrInvalidSource = errors.New("parse failed: invalid proto source")
// ErrorWithPos is an error about a proto source file that adds information
// about the location in the file that caused the error.
type ErrorWithPos interface {
error
ast.SourceSpan
// GetPosition returns the start source position that caused the underlying error.
GetPosition() ast.SourcePos
// Unwrap returns the underlying error.
Unwrap() error
}
// Error creates a new ErrorWithPos from the given error and source position.
func Error(span ast.SourceSpan, err error) ErrorWithPos {
var ewp ErrorWithPos
if errors.As(err, &ewp) {
// replace existing position with given one
return &errorWithSpan{SourceSpan: span, underlying: ewp.Unwrap()}
}
return &errorWithSpan{SourceSpan: span, underlying: err}
}
// Errorf creates a new ErrorWithPos whose underlying error is created using the
// given message format and arguments (via fmt.Errorf).
func Errorf(span ast.SourceSpan, format string, args ...interface{}) ErrorWithPos {
return Error(span, fmt.Errorf(format, args...))
}
type errorWithSpan struct {
ast.SourceSpan
underlying error
}
func (e *errorWithSpan) Error() string {
sourcePos := e.GetPosition()
return fmt.Sprintf("%s: %v", sourcePos, e.underlying)
}
func (e *errorWithSpan) GetPosition() ast.SourcePos {
return e.Start()
}
func (e *errorWithSpan) Unwrap() error {
return e.underlying
}
var _ ErrorWithPos = (*errorWithSpan)(nil)
|
