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errors.go
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/
errors.go
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// Copyright 2018 Google LLC
//
// 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 common
import (
"fmt"
)
// Errors type which contains a list of errors observed during parsing.
type Errors struct {
errors []Error
source Source
}
// NewErrors creates a new instance of the Errors type.
func NewErrors(source Source) *Errors {
return &Errors{
errors: []Error{},
source: source}
}
// ReportError records an error at a source location.
func (e *Errors) ReportError(l Location, format string, args ...interface{}) {
err := Error{
Location: l,
Message: fmt.Sprintf(format, args...),
}
e.errors = append(e.errors, err)
}
// GetErrors returns the list of observed errors.
func (e *Errors) GetErrors() []Error {
return e.errors[:]
}
// ToDisplayString returns the error set to a newline delimited string.
func (e *Errors) ToDisplayString() string {
var result = ""
for i, err := range e.errors {
if i >= 1 {
result += "\n"
}
result += err.ToDisplayString(e.source)
}
return result
}