mirror of
https://github.com/google/go-jsonnet.git
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c3459153df
* 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
63 lines
1.6 KiB
Go
63 lines
1.6 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 "github.com/google/go-jsonnet/ast"
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// RuntimeError is an error discovered during evaluation of the program
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type RuntimeError struct {
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StackTrace []TraceFrame
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Msg string
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}
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func makeRuntimeError(msg string, stackTrace []TraceFrame) RuntimeError {
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return RuntimeError{
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Msg: msg,
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StackTrace: stackTrace,
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}
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}
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func (err RuntimeError) Error() string {
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return "RUNTIME ERROR: " + err.Msg
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}
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// The stack
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// TraceFrame is tracing information about a single frame of the call stack.
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// TODO(sbarzowski) the difference from TraceElement. Do we even need this?
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type TraceFrame struct {
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Loc ast.LocationRange
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Name string
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}
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func traceElementToTraceFrame(trace *TraceElement) TraceFrame {
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tf := TraceFrame{Loc: *trace.loc}
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if trace.context != nil {
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// TODO(sbarzowski) maybe it should never be nil
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tf.Name = *trace.context
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} else {
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tf.Name = ""
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}
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return tf
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}
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// TODO(sbarzowski) better name
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type TraceElement struct {
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loc *ast.LocationRange
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context ast.Context
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}
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