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js: rm tracers.Context

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Signed-off-by: jsvisa <delweng@gmail.com>
This commit is contained in:
jsvisa 2024-08-20 03:44:55 +00:00
parent 971a5267ac
commit da5c1404fc
1 changed files with 32 additions and 30 deletions
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50
eth/tracers/js/goja.go
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@ -46,10 +46,10 @@ func init() {
if err != nil {
panic(err)
}
type ctorFn = func(*tracers.Context, json.RawMessage) (*tracers.Tracer, error)
type ctorFn = func(json.RawMessage) (*tracers.Tracer, error)
lookup := func(code string) ctorFn {
return func(ctx *tracers.Context, cfg json.RawMessage) (*tracers.Tracer, error) {
return newJsTracer(code, ctx, cfg)
return func(cfg json.RawMessage) (*tracers.Tracer, error) {
return newJsTracer(code, cfg)
}
}
for name, code := range assetTracers {
@ -138,7 +138,7 @@ type jsTracer struct {
// The methods `result` and `fault` are required to be present.
// The methods `step`, `enter`, and `exit` are optional, but note that
// `enter` and `exit` always go together.
func newJsTracer(code string, ctx *tracers.Context, cfg json.RawMessage) (*tracers.Tracer, error) {
func newJsTracer(code string, cfg json.RawMessage) (*tracers.Tracer, error) {
vm := goja.New()
// By default field names are exported to JS as is, i.e. capitalized.
vm.SetFieldNameMapper(goja.UncapFieldNameMapper())
@ -150,25 +150,6 @@ func newJsTracer(code string, ctx *tracers.Context, cfg json.RawMessage) (*trace
t.setTypeConverters()
t.setBuiltinFunctions()
if ctx == nil {
ctx = new(tracers.Context)
}
if ctx.BlockHash != (common.Hash{}) {
blockHash, err := t.toBuf(vm, ctx.BlockHash.Bytes())
if err != nil {
return nil, err
}
t.ctx["blockHash"] = blockHash
if ctx.TxHash != (common.Hash{}) {
t.ctx["txIndex"] = vm.ToValue(ctx.TxIndex)
txHash, err := t.toBuf(vm, ctx.TxHash.Bytes())
if err != nil {
return nil, err
}
t.ctx["txHash"] = txHash
}
}
ret, err := vm.RunString("(" + code + ")")
if err != nil {
return nil, err
@ -224,6 +205,7 @@ func newJsTracer(code string, ctx *tracers.Context, cfg json.RawMessage) (*trace
return &tracers.Tracer{
Hooks: &tracing.Hooks{
OnBlockStart: t.OnBlockStart,
OnTxStart: t.OnTxStart,
OnTxEnd: t.OnTxEnd,
OnEnter: t.OnEnter,
@ -236,6 +218,20 @@ func newJsTracer(code string, ctx *tracers.Context, cfg json.RawMessage) (*trace
}, nil
}
// OnBlockStart implements the Tracer interface and is invoked at the
// beginning of block processing.
func (t *jsTracer) OnBlockStart(evt tracing.BlockEvent) {
block := evt.Block
t.ctx["block"] = t.vm.ToValue(block.NumberU64())
blockHash, err := t.toBuf(t.vm, block.Hash().Bytes())
if err != nil {
t.err = err
return
}
t.ctx["blockHash"] = t.vm.ToValue(blockHash)
}
// OnTxStart implements the Tracer interface and is invoked at the beginning of
// transaction processing.
func (t *jsTracer) OnTxStart(env *tracing.VMContext, tx *types.Transaction, from common.Address) {
@ -246,7 +242,6 @@ func (t *jsTracer) OnTxStart(env *tracing.VMContext, tx *types.Transaction, from
// Update list of precompiles based on current block
rules := env.ChainConfig.Rules(env.BlockNumber, env.Random != nil, env.Time)
t.activePrecompiles = vm.ActivePrecompiles(rules)
t.ctx["block"] = t.vm.ToValue(t.env.BlockNumber.Uint64())
t.ctx["gas"] = t.vm.ToValue(tx.Gas())
gasPriceBig, err := t.toBig(t.vm, env.GasPrice.String())
if err != nil {
@ -260,6 +255,12 @@ func (t *jsTracer) OnTxStart(env *tracing.VMContext, tx *types.Transaction, from
return
}
t.ctx["coinbase"] = t.vm.ToValue(coinbase)
txHash, err := t.toBuf(t.vm, tx.Hash().Bytes())
if err != nil {
t.err = err
return
}
t.ctx["txHash"] = txHash
}
// OnTxEnd implements the Tracer interface and is invoked at the end of
@ -277,6 +278,7 @@ func (t *jsTracer) OnTxEnd(receipt *types.Receipt, err error) {
}
if receipt != nil {
t.ctx["gasUsed"] = t.vm.ToValue(receipt.GasUsed)
t.ctx["txIndex"] = t.vm.ToValue(receipt.TransactionIndex)
}
}