0g-chain/x/earn/keeper/invariants.go

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package keeper
import (
"github.com/kava-labs/kava/x/earn/types"
sdk "github.com/cosmos/cosmos-sdk/types"
)
// RegisterInvariants registers the swap module invariants
func RegisterInvariants(ir sdk.InvariantRegistry, k Keeper) {
ir.RegisterRoute(types.ModuleName, "vault-records", VaultRecordsInvariant(k))
ir.RegisterRoute(types.ModuleName, "share-records", ShareRecordsInvariant(k))
ir.RegisterRoute(types.ModuleName, "vault-shares", VaultSharesInvariant(k))
}
// AllInvariants runs all invariants of the swap module
func AllInvariants(k Keeper) sdk.Invariant {
return func(ctx sdk.Context) (string, bool) {
if res, stop := VaultRecordsInvariant(k)(ctx); stop {
return res, stop
}
if res, stop := ShareRecordsInvariant(k)(ctx); stop {
return res, stop
}
res, stop := VaultSharesInvariant(k)(ctx)
return res, stop
}
}
// VaultRecordsInvariant iterates all vault records and asserts that they are valid
func VaultRecordsInvariant(k Keeper) sdk.Invariant {
broken := false
message := sdk.FormatInvariant(types.ModuleName, "validate vault records broken", "vault record invalid")
return func(ctx sdk.Context) (string, bool) {
k.IterateVaultRecords(ctx, func(record types.VaultRecord) bool {
if err := record.Validate(); err != nil {
broken = true
return true
}
return false
})
return message, broken
}
}
// ShareRecordsInvariant iterates all share records and asserts that they are valid
func ShareRecordsInvariant(k Keeper) sdk.Invariant {
broken := false
message := sdk.FormatInvariant(types.ModuleName, "validate share records broken", "share record invalid")
return func(ctx sdk.Context) (string, bool) {
k.IterateVaultShareRecords(ctx, func(record types.VaultShareRecord) bool {
if err := record.Validate(); err != nil {
broken = true
return true
}
return false
})
return message, broken
}
}
type vaultShares struct {
totalShares types.VaultShare
totalSharesOwned types.VaultShare
}
// VaultSharesInvariant iterates all vaults and shares and ensures the total vault shares match the sum of depositor shares
func VaultSharesInvariant(k Keeper) sdk.Invariant {
broken := false
message := sdk.FormatInvariant(types.ModuleName, "vault shares broken", "vault shares do not match depositor shares")
return func(ctx sdk.Context) (string, bool) {
totalShares := make(map[string]vaultShares)
k.IterateVaultRecords(ctx, func(record types.VaultRecord) bool {
totalShares[record.TotalShares.Denom] = vaultShares{
totalShares: record.TotalShares,
totalSharesOwned: types.NewVaultShare(record.TotalShares.Denom, sdk.ZeroDec()),
}
return false
})
k.IterateVaultShareRecords(ctx, func(sr types.VaultShareRecord) bool {
for _, share := range sr.Shares {
if shares, found := totalShares[share.Denom]; found {
shares.totalSharesOwned = shares.totalSharesOwned.Add(share)
totalShares[share.Denom] = shares
} else {
totalShares[share.Denom] = vaultShares{
totalShares: types.NewVaultShare(share.Denom, sdk.ZeroDec()),
totalSharesOwned: share,
}
}
}
return false
})
for _, share := range totalShares {
if !share.totalShares.Amount.Equal(share.totalSharesOwned.Amount) {
broken = true
break
}
}
return message, broken
}
}