mirror of
https://gitlab.com/pulsechaincom/prysm-pulse.git
synced 2024-12-25 12:57:18 +00:00
2f10b1c7b1
* Remove gogoproto compiler * Remove more gogoproto * Improvements * Fix gengo * More scripts * Gazelle, fix deps * Fix version and errors * Fix gocast for arrays * Fix ethapis * Fixes * Fix compile errors * fix go.mod * //proto/... builds * Update for protov2 * temp fix compilation to move on * Change everything to emptypb.empty * Add grpc to proto/slashings * Fix almost all build failures * Oher build problems * FIX THIS FUCKING THING * gaz literally every .bazel * Final touches * Final final touches * Fix proto * Begin moving proto.Marshal to native * Fix site_data * Fixes * Fix duplicate gateway * Fix gateway target * Fix ethapis * Fixes from review * Update * Fix * Fix status test * Fix fuzz * Add isprotoslice to fun * Change DeepEqual to DeepSSZEqual for proto arrays * Fix build * Fix gaz * Update go * Fixes * Fixes * Add case for nil validators after copy * Fix cast * Fix test * Fix imports * Go mod * Only use extension where needed * Fixes * Split gateway from gengo * gaz * go mod * Add back hydrated state * fix hydrate * Fix proto.clone * Fies * Revert "Split gateway from gengo" This reverts commit 7298bb2054d446e427d9af97e13b8fabe8695085. * Revert "gaz" This reverts commit ca952565701a88727e22302d6c8d60ac48d97255. * Merge all gateway into one target * go mod * Gaz * Add generate v1_gateway files * run pb again * goimports * gaz * Fix comments * Fix protos * Fix PR * Fix protos * Update grpc-gateway and ethapis * Update ethapis and gen-go-cast * Go tidy * Reorder * Fix ethapis * fix spec tests * Fix script * Remove unused import * Fix fuzz * Fix gomod * Update version * Error if the cloned result is nil * Handle optional slots * ADd more empty checks to clone * Undo fuzz changes * Fix build.bazel * Gaz * Redo fuzz changes * Undo some eth1data changes * Update go.mod Co-authored-by: Preston Van Loon <preston@prysmaticlabs.com> * Undo clone beacon state * Remove gogo proto more and unused v1_gateway * Add manual fix for nil vals * Fix gaz * tidy * Tidy again * Add detailed error * Revert "Add detailed error" This reverts commit 59bc053dcd59569a54c95b07739d5a379665ec5d. * Undo varint changes * Fix nil validators in deposit test * Commit * Undo Co-authored-by: Preston Van Loon <preston@prysmaticlabs.com> Co-authored-by: Radosław Kapka <rkapka@wp.pl> Co-authored-by: Nishant Das <nishdas93@gmail.com> Co-authored-by: Raul Jordan <raul@prysmaticlabs.com>
323 lines
9.7 KiB
Go
323 lines
9.7 KiB
Go
package sszutil
|
|
|
|
import (
|
|
"reflect"
|
|
"unsafe"
|
|
|
|
types "github.com/prysmaticlabs/eth2-types"
|
|
"google.golang.org/protobuf/proto"
|
|
)
|
|
|
|
// During deepValueEqual, must keep track of checks that are
|
|
// in progress. The comparison algorithm assumes that all
|
|
// checks in progress are true when it reencounters them.
|
|
// Visited comparisons are stored in a map indexed by visit.
|
|
type visit struct {
|
|
a1 unsafe.Pointer
|
|
a2 unsafe.Pointer
|
|
typ reflect.Type
|
|
}
|
|
|
|
// Copyright 2009 The Go Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
//
|
|
// This file extends Go's reflect.DeepEqual function into a sszutil.DeepEqual
|
|
// function that is compliant with the supported types of ssz and its
|
|
// intricacies when determining equality of empty values.
|
|
//
|
|
// Tests for deep equality using reflected types. The map argument tracks
|
|
// comparisons that have already been seen, which allows short circuiting on
|
|
// recursive types.
|
|
func deepValueEqual(v1, v2 reflect.Value, visited map[visit]bool, depth int) bool {
|
|
if !v1.IsValid() || !v2.IsValid() {
|
|
return v1.IsValid() == v2.IsValid()
|
|
}
|
|
if v1.Type() != v2.Type() {
|
|
return false
|
|
}
|
|
// We want to avoid putting more in the visited map than we need to.
|
|
// For any possible reference cycle that might be encountered,
|
|
// hard(t) needs to return true for at least one of the types in the cycle.
|
|
hard := func(k reflect.Kind) bool {
|
|
switch k {
|
|
case reflect.Slice, reflect.Ptr, reflect.Interface:
|
|
return true
|
|
}
|
|
return false
|
|
}
|
|
|
|
if v1.CanAddr() && v2.CanAddr() && hard(v1.Kind()) {
|
|
addr1 := unsafe.Pointer(v1.UnsafeAddr())
|
|
addr2 := unsafe.Pointer(v2.UnsafeAddr())
|
|
if uintptr(addr1) > uintptr(addr2) {
|
|
// Canonicalize order to reduce number of entries in visited.
|
|
// Assumes non-moving garbage collector.
|
|
addr1, addr2 = addr2, addr1
|
|
}
|
|
|
|
// Short circuit if references are already seen.
|
|
typ := v1.Type()
|
|
v := visit{addr1, addr2, typ}
|
|
if visited[v] {
|
|
return true
|
|
}
|
|
|
|
// Remember for later.
|
|
visited[v] = true
|
|
}
|
|
|
|
switch v1.Kind() {
|
|
case reflect.Array:
|
|
for i := 0; i < v1.Len(); i++ {
|
|
if !deepValueEqual(v1.Index(i), v2.Index(i), visited, depth+1) {
|
|
return false
|
|
}
|
|
}
|
|
return true
|
|
case reflect.Slice:
|
|
if v1.IsNil() && v2.Len() == 0 {
|
|
return true
|
|
}
|
|
if v1.Len() == 0 && v2.IsNil() {
|
|
return true
|
|
}
|
|
if v1.IsNil() && v2.IsNil() {
|
|
return true
|
|
}
|
|
if v1.Len() != v2.Len() {
|
|
return false
|
|
}
|
|
if v1.Pointer() == v2.Pointer() {
|
|
return true
|
|
}
|
|
for i := 0; i < v1.Len(); i++ {
|
|
if !deepValueEqual(v1.Index(i), v2.Index(i), visited, depth+1) {
|
|
return false
|
|
}
|
|
}
|
|
return true
|
|
case reflect.Interface:
|
|
if v1.IsNil() || v2.IsNil() {
|
|
return v1.IsNil() == v2.IsNil()
|
|
}
|
|
return deepValueEqual(v1.Elem(), v2.Elem(), visited, depth+1)
|
|
case reflect.Ptr:
|
|
if v1.Pointer() == v2.Pointer() {
|
|
return true
|
|
}
|
|
return deepValueEqual(v1.Elem(), v2.Elem(), visited, depth+1)
|
|
case reflect.Struct:
|
|
for i, n := 0, v1.NumField(); i < n; i++ {
|
|
if !deepValueEqual(v1.Field(i), v2.Field(i), visited, depth+1) {
|
|
return false
|
|
}
|
|
}
|
|
return true
|
|
default:
|
|
return deepValueBaseTypeEqual(v1, v2)
|
|
}
|
|
}
|
|
|
|
func deepValueEqualExportedOnly(v1, v2 reflect.Value, visited map[visit]bool, depth int) bool {
|
|
if !v1.IsValid() || !v2.IsValid() {
|
|
return v1.IsValid() == v2.IsValid()
|
|
}
|
|
if v1.Type() != v2.Type() {
|
|
return false
|
|
}
|
|
// We want to avoid putting more in the visited map than we need to.
|
|
// For any possible reference cycle that might be encountered,
|
|
// hard(t) needs to return true for at least one of the types in the cycle.
|
|
hard := func(k reflect.Kind) bool {
|
|
switch k {
|
|
case reflect.Slice, reflect.Ptr, reflect.Interface:
|
|
return true
|
|
}
|
|
return false
|
|
}
|
|
|
|
if v1.CanAddr() && v2.CanAddr() && hard(v1.Kind()) {
|
|
addr1 := unsafe.Pointer(v1.UnsafeAddr())
|
|
addr2 := unsafe.Pointer(v2.UnsafeAddr())
|
|
if uintptr(addr1) > uintptr(addr2) {
|
|
// Canonicalize order to reduce number of entries in visited.
|
|
// Assumes non-moving garbage collector.
|
|
addr1, addr2 = addr2, addr1
|
|
}
|
|
|
|
// Short circuit if references are already seen.
|
|
typ := v1.Type()
|
|
v := visit{addr1, addr2, typ}
|
|
if visited[v] {
|
|
return true
|
|
}
|
|
|
|
// Remember for later.
|
|
visited[v] = true
|
|
}
|
|
|
|
switch v1.Kind() {
|
|
case reflect.Array:
|
|
for i := 0; i < v1.Len(); i++ {
|
|
if !deepValueEqualExportedOnly(v1.Index(i), v2.Index(i), visited, depth+1) {
|
|
return false
|
|
}
|
|
}
|
|
return true
|
|
case reflect.Slice:
|
|
if v1.IsNil() && v2.Len() == 0 {
|
|
return true
|
|
}
|
|
if v1.Len() == 0 && v2.IsNil() {
|
|
return true
|
|
}
|
|
if v1.IsNil() && v2.IsNil() {
|
|
return true
|
|
}
|
|
if v1.Len() != v2.Len() {
|
|
return false
|
|
}
|
|
if v1.Pointer() == v2.Pointer() {
|
|
return true
|
|
}
|
|
for i := 0; i < v1.Len(); i++ {
|
|
if !deepValueEqualExportedOnly(v1.Index(i), v2.Index(i), visited, depth+1) {
|
|
return false
|
|
}
|
|
}
|
|
return true
|
|
case reflect.Interface:
|
|
if v1.IsNil() || v2.IsNil() {
|
|
return v1.IsNil() == v2.IsNil()
|
|
}
|
|
return deepValueEqualExportedOnly(v1.Elem(), v2.Elem(), visited, depth+1)
|
|
case reflect.Ptr:
|
|
if v1.Pointer() == v2.Pointer() {
|
|
return true
|
|
}
|
|
return deepValueEqualExportedOnly(v1.Elem(), v2.Elem(), visited, depth+1)
|
|
case reflect.Struct:
|
|
for i, n := 0, v1.NumField(); i < n; i++ {
|
|
v1Field := v1.Field(i)
|
|
v2Field := v2.Field(i)
|
|
if !v1Field.CanInterface() || !v2Field.CanInterface() {
|
|
// Continue for unexported fields, since they cannot be read anyways.
|
|
continue
|
|
}
|
|
if !deepValueEqualExportedOnly(v1Field, v2Field, visited, depth+1) {
|
|
return false
|
|
}
|
|
}
|
|
return true
|
|
default:
|
|
return deepValueBaseTypeEqual(v1, v2)
|
|
}
|
|
}
|
|
|
|
func deepValueBaseTypeEqual(v1, v2 reflect.Value) bool {
|
|
switch v1.Kind() {
|
|
case reflect.String:
|
|
return v1.String() == v2.String()
|
|
case reflect.Uint64:
|
|
switch v1.Type().Name() {
|
|
case "Epoch":
|
|
return v1.Interface().(types.Epoch) == v2.Interface().(types.Epoch)
|
|
case "Slot":
|
|
return v1.Interface().(types.Slot) == v2.Interface().(types.Slot)
|
|
case "ValidatorIndex":
|
|
return v1.Interface().(types.ValidatorIndex) == v2.Interface().(types.ValidatorIndex)
|
|
case "CommitteeIndex":
|
|
return v1.Interface().(types.CommitteeIndex) == v2.Interface().(types.CommitteeIndex)
|
|
}
|
|
return v1.Interface().(uint64) == v2.Interface().(uint64)
|
|
case reflect.Uint32:
|
|
return v1.Interface().(uint32) == v2.Interface().(uint32)
|
|
case reflect.Int32:
|
|
return v1.Interface().(int32) == v2.Interface().(int32)
|
|
case reflect.Uint16:
|
|
return v1.Interface().(uint16) == v2.Interface().(uint16)
|
|
case reflect.Uint8:
|
|
return v1.Interface().(uint8) == v2.Interface().(uint8)
|
|
case reflect.Bool:
|
|
return v1.Interface().(bool) == v2.Interface().(bool)
|
|
default:
|
|
return false
|
|
}
|
|
}
|
|
|
|
// DeepEqual reports whether two SSZ-able values x and y are ``deeply equal,'' defined as follows:
|
|
// Two values of identical type are deeply equal if one of the following cases applies:
|
|
//
|
|
// Values of distinct types are never deeply equal.
|
|
//
|
|
// Array values are deeply equal when their corresponding elements are deeply equal.
|
|
//
|
|
// Struct values are deeply equal if their corresponding fields,
|
|
// both exported and unexported, are deeply equal.
|
|
//
|
|
// Interface values are deeply equal if they hold deeply equal concrete values.
|
|
//
|
|
// Pointer values are deeply equal if they are equal using Go's == operator
|
|
// or if they point to deeply equal values.
|
|
//
|
|
// Slice values are deeply equal when all of the following are true:
|
|
// they are both nil, one is nil and the other is empty or vice-versa,
|
|
// they have the same length, and either they point to the same initial entry of the same array
|
|
// (that is, &x[0] == &y[0]) or their corresponding elements (up to length) are deeply equal.
|
|
//
|
|
// Other values - numbers, bools, strings, and channels - are deeply equal
|
|
// if they are equal using Go's == operator.
|
|
//
|
|
// In general DeepEqual is a recursive relaxation of Go's == operator.
|
|
// However, this idea is impossible to implement without some inconsistency.
|
|
// Specifically, it is possible for a value to be unequal to itself,
|
|
// either because it is of func type (uncomparable in general)
|
|
// or because it is a floating-point NaN value (not equal to itself in floating-point comparison),
|
|
// or because it is an array, struct, or interface containing
|
|
// such a value.
|
|
//
|
|
// On the other hand, pointer values are always equal to themselves,
|
|
// even if they point at or contain such problematic values,
|
|
// because they compare equal using Go's == operator, and that
|
|
// is a sufficient condition to be deeply equal, regardless of content.
|
|
// DeepEqual has been defined so that the same short-cut applies
|
|
// to slices and maps: if x and y are the same slice or the same map,
|
|
// they are deeply equal regardless of content.
|
|
//
|
|
// As DeepEqual traverses the data values it may find a cycle. The
|
|
// second and subsequent times that DeepEqual compares two pointer
|
|
// values that have been compared before, it treats the values as
|
|
// equal rather than examining the values to which they point.
|
|
// This ensures that DeepEqual terminates.
|
|
//
|
|
// Credits go to the Go team as this is an extension of the official Go source code's
|
|
// reflect.DeepEqual function to handle special SSZ edge cases.
|
|
func DeepEqual(x, y interface{}) bool {
|
|
if x == nil || y == nil {
|
|
return x == y
|
|
}
|
|
v1 := reflect.ValueOf(x)
|
|
v2 := reflect.ValueOf(y)
|
|
if v1.Type() != v2.Type() {
|
|
return false
|
|
}
|
|
if IsProto(x) && IsProto(y) {
|
|
// Exclude unexported fields for protos.
|
|
return deepValueEqualExportedOnly(v1, v2, make(map[visit]bool), 0)
|
|
}
|
|
return deepValueEqual(v1, v2, make(map[visit]bool), 0)
|
|
}
|
|
|
|
func IsProto(item interface{}) bool {
|
|
typ := reflect.TypeOf(item)
|
|
kind := typ.Kind()
|
|
if kind != reflect.Slice && kind != reflect.Array && kind != reflect.Map {
|
|
_, ok := item.(proto.Message)
|
|
return ok
|
|
}
|
|
elemTyp := typ.Elem()
|
|
modelType := reflect.TypeOf((*proto.Message)(nil)).Elem()
|
|
return elemTyp.Implements(modelType)
|
|
}
|