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// Copyright 2015 Google Inc. All Rights Reserved.
// This file is available under the Apache license.
package errors
import (
"fmt"
"strings"
"github.com/jaqx0r/mtail/internal/runtime/compiler/position"
"github.com/pkg/errors"
)
type compileError struct {
pos position.Position
msg string
}
func (e compileError) Error() string {
return e.pos.String() + ": " + e.msg
}
// ErrorList contains a list of compile errors.
type ErrorList []*compileError
// Add appends an error at a position to the list of errors.
func (p *ErrorList) Add(pos *position.Position, msg string) {
if pos == nil {
pos = &position.Position{"", -1, -1, -1}
}
*p = append(*p, &compileError{*pos, msg})
}
// Append puts an ErrorList on the end of this ErrorList.
func (p *ErrorList) Append(l ErrorList) {
*p = append(*p, l...)
}
// ErrorList implements the error interface.
func (p *ErrorList) Error() string {
switch len(*p) {
case 0:
return "no errors"
case 1:
return (*p)[0].Error()
}
var r strings.Builder
for _, e := range *p {
r.WriteString(fmt.Sprintf("%s\n", e))
}
return r.String()[:r.Len()-1]
}
func Errorf(format string, args ...interface{}) error {
return errors.Errorf(format, args...)
}
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