315 lines
8.2 KiB
Go
315 lines
8.2 KiB
Go
package goja
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import "github.com/dop251/goja/unistring"
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const propNameStack = "stack"
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type errorObject struct {
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baseObject
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stack []StackFrame
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stackPropAdded bool
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}
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func (e *errorObject) formatStack() String {
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var b StringBuilder
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val := writeErrorString(&b, e.val)
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if val != nil {
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b.WriteString(val)
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}
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b.WriteRune('\n')
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for _, frame := range e.stack {
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b.writeASCII("\tat ")
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frame.WriteToValueBuilder(&b)
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b.WriteRune('\n')
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}
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return b.String()
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}
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func (e *errorObject) addStackProp() Value {
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if !e.stackPropAdded {
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res := e._putProp(propNameStack, e.formatStack(), true, false, true)
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if len(e.propNames) > 1 {
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// reorder property names to ensure 'stack' is the first one
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copy(e.propNames[1:], e.propNames)
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e.propNames[0] = propNameStack
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}
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e.stackPropAdded = true
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return res
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}
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return nil
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}
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func (e *errorObject) getStr(p unistring.String, receiver Value) Value {
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return e.getStrWithOwnProp(e.getOwnPropStr(p), p, receiver)
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}
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func (e *errorObject) getOwnPropStr(name unistring.String) Value {
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res := e.baseObject.getOwnPropStr(name)
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if res == nil && name == propNameStack {
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return e.addStackProp()
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}
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return res
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}
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func (e *errorObject) setOwnStr(name unistring.String, val Value, throw bool) bool {
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if name == propNameStack {
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e.addStackProp()
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}
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return e.baseObject.setOwnStr(name, val, throw)
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}
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func (e *errorObject) setForeignStr(name unistring.String, val, receiver Value, throw bool) (bool, bool) {
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return e._setForeignStr(name, e.getOwnPropStr(name), val, receiver, throw)
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}
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func (e *errorObject) deleteStr(name unistring.String, throw bool) bool {
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if name == propNameStack {
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e.addStackProp()
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}
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return e.baseObject.deleteStr(name, throw)
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}
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func (e *errorObject) defineOwnPropertyStr(name unistring.String, desc PropertyDescriptor, throw bool) bool {
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if name == propNameStack {
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e.addStackProp()
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}
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return e.baseObject.defineOwnPropertyStr(name, desc, throw)
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}
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func (e *errorObject) hasOwnPropertyStr(name unistring.String) bool {
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if e.baseObject.hasOwnPropertyStr(name) {
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return true
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}
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return name == propNameStack && !e.stackPropAdded
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}
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func (e *errorObject) stringKeys(all bool, accum []Value) []Value {
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if all && !e.stackPropAdded {
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accum = append(accum, asciiString(propNameStack))
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}
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return e.baseObject.stringKeys(all, accum)
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}
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func (e *errorObject) iterateStringKeys() iterNextFunc {
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e.addStackProp()
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return e.baseObject.iterateStringKeys()
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}
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func (e *errorObject) init() {
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e.baseObject.init()
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vm := e.val.runtime.vm
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e.stack = vm.captureStack(make([]StackFrame, 0, len(vm.callStack)+1), 0)
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}
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func (r *Runtime) newErrorObject(proto *Object, class string) *errorObject {
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obj := &Object{runtime: r}
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o := &errorObject{
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baseObject: baseObject{
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class: class,
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val: obj,
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extensible: true,
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prototype: proto,
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},
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}
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obj.self = o
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o.init()
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return o
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}
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func (r *Runtime) builtin_Error(args []Value, proto *Object) *Object {
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obj := r.newErrorObject(proto, classError)
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if len(args) > 0 && args[0] != _undefined {
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obj._putProp("message", args[0].ToString(), true, false, true)
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}
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if len(args) > 1 && args[1] != _undefined {
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if options, ok := args[1].(*Object); ok {
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if options.hasProperty(asciiString("cause")) {
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obj.defineOwnPropertyStr("cause", PropertyDescriptor{
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Writable: FLAG_TRUE,
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Enumerable: FLAG_FALSE,
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Configurable: FLAG_TRUE,
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Value: options.Get("cause"),
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}, true)
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}
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}
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}
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return obj.val
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}
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func (r *Runtime) builtin_AggregateError(args []Value, proto *Object) *Object {
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obj := r.newErrorObject(proto, classError)
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if len(args) > 1 && args[1] != nil && args[1] != _undefined {
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obj._putProp("message", args[1].toString(), true, false, true)
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}
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var errors []Value
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if len(args) > 0 {
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errors = r.iterableToList(args[0], nil)
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}
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obj._putProp("errors", r.newArrayValues(errors), true, false, true)
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if len(args) > 2 && args[2] != _undefined {
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if options, ok := args[2].(*Object); ok {
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if options.hasProperty(asciiString("cause")) {
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obj.defineOwnPropertyStr("cause", PropertyDescriptor{
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Writable: FLAG_TRUE,
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Enumerable: FLAG_FALSE,
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Configurable: FLAG_TRUE,
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Value: options.Get("cause"),
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}, true)
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}
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}
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}
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return obj.val
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}
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func writeErrorString(sb *StringBuilder, obj *Object) String {
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var nameStr, msgStr String
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name := obj.self.getStr("name", nil)
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if name == nil || name == _undefined {
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nameStr = asciiString("Error")
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} else {
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nameStr = name.toString()
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}
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msg := obj.self.getStr("message", nil)
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if msg == nil || msg == _undefined {
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msgStr = stringEmpty
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} else {
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msgStr = msg.toString()
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}
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if nameStr.Length() == 0 {
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return msgStr
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}
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if msgStr.Length() == 0 {
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return nameStr
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}
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sb.WriteString(nameStr)
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sb.WriteString(asciiString(": "))
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sb.WriteString(msgStr)
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return nil
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}
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func (r *Runtime) error_toString(call FunctionCall) Value {
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var sb StringBuilder
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val := writeErrorString(&sb, r.toObject(call.This))
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if val != nil {
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return val
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}
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return sb.String()
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}
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func (r *Runtime) createErrorPrototype(name String, ctor *Object) *Object {
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o := r.newBaseObject(r.getErrorPrototype(), classObject)
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o._putProp("message", stringEmpty, true, false, true)
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o._putProp("name", name, true, false, true)
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o._putProp("constructor", ctor, true, false, true)
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return o.val
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}
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func (r *Runtime) getErrorPrototype() *Object {
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ret := r.global.ErrorPrototype
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if ret == nil {
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ret = r.NewObject()
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r.global.ErrorPrototype = ret
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o := ret.self
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o._putProp("message", stringEmpty, true, false, true)
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o._putProp("name", stringError, true, false, true)
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o._putProp("toString", r.newNativeFunc(r.error_toString, "toString", 0), true, false, true)
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o._putProp("constructor", r.getError(), true, false, true)
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}
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return ret
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}
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func (r *Runtime) getError() *Object {
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ret := r.global.Error
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if ret == nil {
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ret = &Object{runtime: r}
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r.global.Error = ret
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r.newNativeFuncConstruct(ret, r.builtin_Error, "Error", r.getErrorPrototype(), 1)
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}
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return ret
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}
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func (r *Runtime) getAggregateError() *Object {
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ret := r.global.AggregateError
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if ret == nil {
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ret = &Object{runtime: r}
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r.global.AggregateError = ret
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r.newNativeFuncConstructProto(ret, r.builtin_AggregateError, "AggregateError", r.createErrorPrototype(stringAggregateError, ret), r.getError(), 2)
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}
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return ret
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}
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func (r *Runtime) getTypeError() *Object {
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ret := r.global.TypeError
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if ret == nil {
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ret = &Object{runtime: r}
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r.global.TypeError = ret
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r.newNativeFuncConstructProto(ret, r.builtin_Error, "TypeError", r.createErrorPrototype(stringTypeError, ret), r.getError(), 1)
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}
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return ret
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}
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func (r *Runtime) getReferenceError() *Object {
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ret := r.global.ReferenceError
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if ret == nil {
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ret = &Object{runtime: r}
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r.global.ReferenceError = ret
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r.newNativeFuncConstructProto(ret, r.builtin_Error, "ReferenceError", r.createErrorPrototype(stringReferenceError, ret), r.getError(), 1)
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}
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return ret
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}
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func (r *Runtime) getSyntaxError() *Object {
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ret := r.global.SyntaxError
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if ret == nil {
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ret = &Object{runtime: r}
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r.global.SyntaxError = ret
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r.newNativeFuncConstructProto(ret, r.builtin_Error, "SyntaxError", r.createErrorPrototype(stringSyntaxError, ret), r.getError(), 1)
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}
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return ret
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}
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func (r *Runtime) getRangeError() *Object {
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ret := r.global.RangeError
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if ret == nil {
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ret = &Object{runtime: r}
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r.global.RangeError = ret
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r.newNativeFuncConstructProto(ret, r.builtin_Error, "RangeError", r.createErrorPrototype(stringRangeError, ret), r.getError(), 1)
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}
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return ret
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}
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func (r *Runtime) getEvalError() *Object {
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ret := r.global.EvalError
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if ret == nil {
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ret = &Object{runtime: r}
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r.global.EvalError = ret
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r.newNativeFuncConstructProto(ret, r.builtin_Error, "EvalError", r.createErrorPrototype(stringEvalError, ret), r.getError(), 1)
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}
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return ret
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}
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func (r *Runtime) getURIError() *Object {
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ret := r.global.URIError
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if ret == nil {
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ret = &Object{runtime: r}
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r.global.URIError = ret
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r.newNativeFuncConstructProto(ret, r.builtin_Error, "URIError", r.createErrorPrototype(stringURIError, ret), r.getError(), 1)
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}
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return ret
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}
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func (r *Runtime) getGoError() *Object {
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ret := r.global.GoError
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if ret == nil {
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ret = &Object{runtime: r}
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r.global.GoError = ret
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r.newNativeFuncConstructProto(ret, r.builtin_Error, "GoError", r.createErrorPrototype(stringGoError, ret), r.getError(), 1)
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}
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return ret
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}
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