mirror of https://github.com/poanetwork/quorum.git
110 lines
2.8 KiB
Go
110 lines
2.8 KiB
Go
package otto
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import (
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"strconv"
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)
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func (runtime *_runtime) newArrayObject(length uint32) *_object {
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self := runtime.newObject()
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self.class = "Array"
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self.defineProperty("length", toValue_uint32(length), 0100, false)
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self.objectClass = _classArray
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return self
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}
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func isArray(object *_object) bool {
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return object != nil && (object.class == "Array" || object.class == "GoArray")
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}
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func objectLength(object *_object) uint32 {
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if object == nil {
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return 0
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}
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switch object.class {
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case "Array":
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return object.get("length").value.(uint32)
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case "String":
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return uint32(object.get("length").value.(int))
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case "GoArray":
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return uint32(object.get("length").value.(int))
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}
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return 0
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}
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func arrayUint32(rt *_runtime, value Value) uint32 {
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nm := value.number()
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if nm.kind != numberInteger || !isUint32(nm.int64) {
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// FIXME
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panic(rt.panicRangeError())
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}
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return uint32(nm.int64)
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}
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func arrayDefineOwnProperty(self *_object, name string, descriptor _property, throw bool) bool {
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lengthProperty := self.getOwnProperty("length")
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lengthValue, valid := lengthProperty.value.(Value)
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if !valid {
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panic("Array.length != Value{}")
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}
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length := lengthValue.value.(uint32)
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if name == "length" {
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if descriptor.value == nil {
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return objectDefineOwnProperty(self, name, descriptor, throw)
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}
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newLengthValue, isValue := descriptor.value.(Value)
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if !isValue {
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panic(self.runtime.panicTypeError())
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}
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newLength := arrayUint32(self.runtime, newLengthValue)
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descriptor.value = toValue_uint32(newLength)
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if newLength > length {
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return objectDefineOwnProperty(self, name, descriptor, throw)
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}
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if !lengthProperty.writable() {
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goto Reject
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}
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newWritable := true
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if descriptor.mode&0700 == 0 {
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// If writable is off
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newWritable = false
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descriptor.mode |= 0100
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}
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if !objectDefineOwnProperty(self, name, descriptor, throw) {
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return false
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}
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for newLength < length {
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length--
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if !self.delete(strconv.FormatInt(int64(length), 10), false) {
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descriptor.value = toValue_uint32(length + 1)
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if !newWritable {
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descriptor.mode &= 0077
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}
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objectDefineOwnProperty(self, name, descriptor, false)
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goto Reject
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}
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}
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if !newWritable {
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descriptor.mode &= 0077
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objectDefineOwnProperty(self, name, descriptor, false)
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}
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} else if index := stringToArrayIndex(name); index >= 0 {
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if index >= int64(length) && !lengthProperty.writable() {
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goto Reject
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}
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if !objectDefineOwnProperty(self, strconv.FormatInt(index, 10), descriptor, false) {
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goto Reject
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}
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if index >= int64(length) {
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lengthProperty.value = toValue_uint32(uint32(index + 1))
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objectDefineOwnProperty(self, "length", *lengthProperty, false)
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return true
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}
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}
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return objectDefineOwnProperty(self, name, descriptor, throw)
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Reject:
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if throw {
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panic(self.runtime.panicTypeError())
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}
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return false
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}
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