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msg.go
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msg.go
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package datactx
import (
"errors"
aspctx "github.com/artela-network/aspect-core/context"
artelatypes "github.com/artela-network/aspect-core/types"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/ethereum/go-ethereum/core"
"google.golang.org/protobuf/proto"
"github.com/artela-network/artela/x/evm/artela/types"
)
type MessageContextFieldLoader func(ethTxCtx *types.EthTxContext, message *core.Message) proto.Message
type MessageContext struct {
getSdkCtx func() sdk.Context
getEthTxContext func() *types.EthTxContext
messageContentLoader map[string]MessageContextFieldLoader
}
func NewMessageContext(getEthTxContext func() *types.EthTxContext,
getSdkCtx func() sdk.Context) *MessageContext {
msgCtx := &MessageContext{
messageContentLoader: make(map[string]MessageContextFieldLoader),
getEthTxContext: getEthTxContext,
getSdkCtx: getSdkCtx,
}
msgCtx.registerLoaders()
return msgCtx
}
func (c *MessageContext) registerLoaders() {
loaders := c.messageContentLoader
loaders[aspctx.MsgIndex] = func(ethTxCtx *types.EthTxContext, message *core.Message) proto.Message {
index := ethTxCtx.VmTracer().CurrentCallIndex()
return &artelatypes.UintData{Data: &index}
}
loaders[aspctx.MsgFrom] = func(ethTxCtx *types.EthTxContext, message *core.Message) proto.Message {
return &artelatypes.BytesData{Data: message.From.Bytes()}
}
loaders[aspctx.MsgTo] = func(ethTxCtx *types.EthTxContext, message *core.Message) proto.Message {
return &artelatypes.BytesData{Data: message.To.Bytes()}
}
loaders[aspctx.MsgValue] = func(ethTxCtx *types.EthTxContext, message *core.Message) proto.Message {
return &artelatypes.BytesData{Data: message.Value.Bytes()}
}
loaders[aspctx.MsgInput] = func(ethTxCtx *types.EthTxContext, message *core.Message) proto.Message {
return &artelatypes.BytesData{Data: message.Data}
}
loaders[aspctx.MsgGas] = func(ethTxCtx *types.EthTxContext, message *core.Message) proto.Message {
gasLimit := message.GasLimit
return &artelatypes.UintData{Data: &gasLimit}
}
loaders[aspctx.MsgResultRet] = func(ethTxCtx *types.EthTxContext, message *core.Message) proto.Message {
tracer := ethTxCtx.VmTracer()
callIdx := tracer.CurrentCallIndex()
currentCall := tracer.CallTree().FindCall(callIdx)
if currentCall.Ret == nil {
return &artelatypes.BytesData{Data: []byte{}}
}
return &artelatypes.BytesData{Data: currentCall.Ret}
}
loaders[aspctx.MsgResultGasUsed] = func(ethTxCtx *types.EthTxContext, message *core.Message) proto.Message {
tracer := ethTxCtx.VmTracer()
callIdx := tracer.CurrentCallIndex()
currentCall := tracer.CallTree().FindCall(callIdx)
result := message.GasLimit - currentCall.RemainingGas
return &artelatypes.UintData{Data: &result}
}
loaders[aspctx.MsgResultError] = func(ethTxCtx *types.EthTxContext, message *core.Message) proto.Message {
tracer := ethTxCtx.VmTracer()
callIdx := tracer.CurrentCallIndex()
currentCall := tracer.CallTree().FindCall(callIdx)
if currentCall.Err == nil {
return &artelatypes.BytesData{Data: []byte{}}
}
msg := currentCall.Err.Error()
return &artelatypes.StringData{Data: &msg}
}
}
func (c *MessageContext) ValueLoader(key string) ContextLoader {
return func(ctx *artelatypes.RunnerContext) ([]byte, error) {
if ctx == nil {
return nil, errors.New("aspect context error, missing important information")
}
txContext := c.getEthTxContext()
if txContext == nil {
return nil, errors.New("tx context error, failed to load")
}
message := txContext.Message()
if message == nil {
return nil, errors.New("message error, failed to load")
}
return proto.Marshal(c.messageContentLoader[key](txContext, message))
}
}