44 lines
1.4 KiB
Go
44 lines
1.4 KiB
Go
// Copyright 2016 The Linux Foundation
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package schema
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import (
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"encoding/json"
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"io"
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"go4.org/errorutil"
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)
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// A SyntaxError is a description of a JSON syntax error
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// including line, column and offset in the JSON file.
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type SyntaxError struct {
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msg string
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Line, Col int
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Offset int64
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}
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func (e *SyntaxError) Error() string { return e.msg }
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// WrapSyntaxError checks whether the given error is a *json.SyntaxError
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// and converts it into a *schema.SyntaxError containing line/col information using the given reader.
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// If the given error is not a *json.SyntaxError it is returned unchanged.
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func WrapSyntaxError(r io.Reader, err error) error {
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if serr, ok := err.(*json.SyntaxError); ok {
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line, col, _ := errorutil.HighlightBytePosition(r, serr.Offset)
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return &SyntaxError{serr.Error(), line, col, serr.Offset}
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}
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return err
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}
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