go-jsonnet/parser/static_error.go
Stanisław Barzowski c3459153df Location, error formatting and stack trace improvements (#59)
* Location, error formatting and stack trace improvements

* Static context for AST nodes
* Thunks no longer need `name`
* Prototype for showing snippets in error messages (old format still
available)
* Use ast.Function to represent methods and local function sugar.
* Change tests so that the error output is pretty
2017-10-03 14:27:44 -04:00

50 lines
1.3 KiB
Go

/*
Copyright 2016 Google Inc. All rights reserved.
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 parser
import (
"fmt"
"github.com/google/go-jsonnet/ast"
)
//////////////////////////////////////////////////////////////////////////////
// StaticError
// StaticError represents an error during parsing/lexing or static analysis.
// TODO(sbarzowski) Make it possible to have multiple static errors and warnings
type StaticError struct {
Loc ast.LocationRange
Msg string
}
func MakeStaticErrorMsg(msg string) StaticError {
return StaticError{Msg: msg}
}
func MakeStaticError(msg string, lr ast.LocationRange) StaticError {
return StaticError{Msg: msg, Loc: lr}
}
func (err StaticError) Error() string {
loc := ""
if err.Loc.IsSet() {
loc = err.Loc.String()
}
return fmt.Sprintf("%v %v", loc, err.Msg)
}