75 lines
1.9 KiB
Go
75 lines
1.9 KiB
Go
// 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"
|
|
"sort"
|
|
)
|
|
|
|
// 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[:]
|
|
}
|
|
|
|
// Append takes an Errors object as input creates a new Errors object with the current and input
|
|
// errors.
|
|
func (e *Errors) Append(errs []Error) *Errors {
|
|
return &Errors{
|
|
errors: append(e.errors, errs...),
|
|
source: e.source,
|
|
}
|
|
}
|
|
|
|
// ToDisplayString returns the error set to a newline delimited string.
|
|
func (e *Errors) ToDisplayString() string {
|
|
var result = ""
|
|
sort.SliceStable(e.errors, func(i, j int) bool {
|
|
ei := e.errors[i].Location
|
|
ej := e.errors[j].Location
|
|
return ei.Line() < ej.Line() ||
|
|
(ei.Line() == ej.Line() && ei.Column() < ej.Column())
|
|
})
|
|
for i, err := range e.errors {
|
|
if i >= 1 {
|
|
result += "\n"
|
|
}
|
|
result += err.ToDisplayString(e.source)
|
|
}
|
|
return result
|
|
}
|