mirror of
https://github.com/google/go-jsonnet.git
synced 2025-08-07 14:57:24 +02:00
80 lines
2.3 KiB
Go
80 lines
2.3 KiB
Go
/*
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Copyright 2017 Google Inc. All rights reserved.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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*/
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package jsonnet
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import (
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"bytes"
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"fmt"
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"github.com/google/go-jsonnet/ast"
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"github.com/google/go-jsonnet/parser"
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)
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type ErrorFormatter struct {
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// TODO(sbarzowski) use this
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// MaxStackTraceSize is the maximum length of stack trace before cropping
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MaxStackTraceSize int
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// TODO(sbarzowski) use these
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pretty bool
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colorful bool
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SP SourceProvider
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}
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func (ef *ErrorFormatter) format(err error) string {
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switch err := err.(type) {
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case RuntimeError:
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return ef.formatRuntime(&err)
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case parser.StaticError:
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return ef.formatStatic(&err)
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default:
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return ef.formatInternal(err)
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}
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}
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func (ef *ErrorFormatter) formatRuntime(err *RuntimeError) string {
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return err.Error() + "\n" + ef.buildStackTrace(err.StackTrace)
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// TODO(sbarzowski) pretty stuff
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}
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func (ef *ErrorFormatter) formatStatic(err *parser.StaticError) string {
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return err.Error() + "\n"
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// TODO(sbarzowski) pretty stuff
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}
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const bugURL = "https://github.com/google/go-jsonnet/issues"
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func (ef *ErrorFormatter) formatInternal(err error) string {
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return "INTERNAL ERROR: " + err.Error() + "\n" +
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"Please report a bug here: " + bugURL + "\n"
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}
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func (ef *ErrorFormatter) buildStackTrace(frames []TraceFrame) string {
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// https://github.com/google/jsonnet/blob/master/core/libjsonnet.cpp#L594
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var buf bytes.Buffer
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for _, f := range frames {
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fmt.Fprintf(&buf, "\t%v\t%v\n", &f.Loc, f.Name)
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// TODO(sbarzowski) handle max stack trace size
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// TODO(sbarzowski) I think the order of frames is reversed
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}
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return buf.String()
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}
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type SourceProvider interface {
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// TODO(sbarzowski) problem: locationRange.FileName may not necessarily
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// uniquely identify a file. But this is the interface we want to have here.
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getCode(ast.LocationRange) string
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}
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