tracers

package
v1.10.12 Latest Latest
Warning

This package is not in the latest version of its module.

Go to latest
Published: Nov 8, 2021 License: GPL-3.0 Imports: 33 Imported by: 538

Documentation

Overview

Package tracers is a collection of JavaScript transaction tracers.

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func APIs added in v1.10.0

func APIs(backend Backend) []rpc.API

APIs return the collection of RPC services the tracer package offers.

func RegisterNativeTracer added in v1.10.12

func RegisterNativeTracer(name string, ctor func() Tracer)

RegisterNativeTracer makes native tracers which adhere to the `Tracer` interface available to the rest of the codebase. It is typically invoked in the `init()` function, e.g. see the `native/call.go`.

Types

type API added in v1.10.0

type API struct {
	// contains filtered or unexported fields
}

API is the collection of tracing APIs exposed over the private debugging endpoint.

func NewAPI added in v1.10.0

func NewAPI(backend Backend) *API

NewAPI creates a new API definition for the tracing methods of the Ethereum service.

func (*API) IntermediateRoots added in v1.10.9

func (api *API) IntermediateRoots(ctx context.Context, hash common.Hash, config *TraceConfig) ([]common.Hash, error)

IntermediateRoots executes a block (bad- or canon- or side-), and returns a list of intermediate roots: the stateroot after each transaction.

func (*API) StandardTraceBadBlockToFile added in v1.10.0

func (api *API) StandardTraceBadBlockToFile(ctx context.Context, hash common.Hash, config *StdTraceConfig) ([]string, error)

StandardTraceBadBlockToFile dumps the structured logs created during the execution of EVM against a block pulled from the pool of bad ones to the local file system and returns a list of files to the caller.

func (*API) StandardTraceBlockToFile added in v1.10.0

func (api *API) StandardTraceBlockToFile(ctx context.Context, hash common.Hash, config *StdTraceConfig) ([]string, error)

StandardTraceBlockToFile dumps the structured logs created during the execution of EVM to the local file system and returns a list of files to the caller.

func (*API) TraceBadBlock added in v1.10.0

func (api *API) TraceBadBlock(ctx context.Context, hash common.Hash, config *TraceConfig) ([]*txTraceResult, error)

TraceBadBlock returns the structured logs created during the execution of EVM against a block pulled from the pool of bad ones and returns them as a JSON object.

func (*API) TraceBlock added in v1.10.0

func (api *API) TraceBlock(ctx context.Context, blob []byte, config *TraceConfig) ([]*txTraceResult, error)

TraceBlock returns the structured logs created during the execution of EVM and returns them as a JSON object.

func (*API) TraceBlockByHash added in v1.10.0

func (api *API) TraceBlockByHash(ctx context.Context, hash common.Hash, config *TraceConfig) ([]*txTraceResult, error)

TraceBlockByHash returns the structured logs created during the execution of EVM and returns them as a JSON object.

func (*API) TraceBlockByNumber added in v1.10.0

func (api *API) TraceBlockByNumber(ctx context.Context, number rpc.BlockNumber, config *TraceConfig) ([]*txTraceResult, error)

TraceBlockByNumber returns the structured logs created during the execution of EVM and returns them as a JSON object.

func (*API) TraceBlockFromFile added in v1.10.0

func (api *API) TraceBlockFromFile(ctx context.Context, file string, config *TraceConfig) ([]*txTraceResult, error)

TraceBlockFromFile returns the structured logs created during the execution of EVM and returns them as a JSON object.

func (*API) TraceCall added in v1.10.0

func (api *API) TraceCall(ctx context.Context, args ethapi.TransactionArgs, blockNrOrHash rpc.BlockNumberOrHash, config *TraceCallConfig) (interface{}, error)

TraceCall lets you trace a given eth_call. It collects the structured logs created during the execution of EVM if the given transaction was added on top of the provided block and returns them as a JSON object. You can provide -2 as a block number to trace on top of the pending block.

func (*API) TraceChain added in v1.10.0

func (api *API) TraceChain(ctx context.Context, start, end rpc.BlockNumber, config *TraceConfig) (*rpc.Subscription, error)

TraceChain returns the structured logs created during the execution of EVM between two blocks (excluding start) and returns them as a JSON object.

func (*API) TraceTransaction added in v1.10.0

func (api *API) TraceTransaction(ctx context.Context, hash common.Hash, config *TraceConfig) (interface{}, error)

TraceTransaction returns the structured logs created during the execution of EVM and returns them as a JSON object.

type Backend added in v1.10.0

type Backend interface {
	HeaderByHash(ctx context.Context, hash common.Hash) (*types.Header, error)
	HeaderByNumber(ctx context.Context, number rpc.BlockNumber) (*types.Header, error)
	BlockByHash(ctx context.Context, hash common.Hash) (*types.Block, error)
	BlockByNumber(ctx context.Context, number rpc.BlockNumber) (*types.Block, error)
	GetTransaction(ctx context.Context, txHash common.Hash) (*types.Transaction, common.Hash, uint64, uint64, error)
	RPCGasCap() uint64
	ChainConfig() *params.ChainConfig
	Engine() consensus.Engine
	ChainDb() ethdb.Database
	// StateAtBlock returns the state corresponding to the stateroot of the block.
	// N.B: For executing transactions on block N, the required stateRoot is block N-1,
	// so this method should be called with the parent.
	StateAtBlock(ctx context.Context, block *types.Block, reexec uint64, base *state.StateDB, checkLive, preferDisk bool) (*state.StateDB, error)
	StateAtTransaction(ctx context.Context, block *types.Block, txIndex int, reexec uint64) (core.Message, vm.BlockContext, *state.StateDB, error)
}

Backend interface provides the common API services (that are provided by both full and light clients) with access to necessary functions.

type Context added in v1.10.5

type Context struct {
	BlockHash common.Hash // Hash of the block the tx is contained within (zero if dangling tx or call)
	TxIndex   int         // Index of the transaction within a block (zero if dangling tx or call)
	TxHash    common.Hash // Hash of the transaction being traced (zero if dangling call)
}

Context contains some contextual infos for a transaction execution that is not available from within the EVM object.

type StdTraceConfig added in v1.10.0

type StdTraceConfig struct {
	vm.LogConfig
	Reexec *uint64
	TxHash common.Hash
}

StdTraceConfig holds extra parameters to standard-json trace functions.

type TraceCallConfig added in v1.10.3

type TraceCallConfig struct {
	*vm.LogConfig
	Tracer         *string
	Timeout        *string
	Reexec         *uint64
	StateOverrides *ethapi.StateOverride
}

TraceCallConfig is the config for traceCall API. It holds one more field to override the state for tracing.

type TraceConfig added in v1.10.0

type TraceConfig struct {
	*vm.LogConfig
	Tracer  *string
	Timeout *string
	Reexec  *uint64
}

TraceConfig holds extra parameters to trace functions.

type Tracer

type Tracer interface {
	vm.EVMLogger
	GetResult() (json.RawMessage, error)
	// Stop terminates execution of the tracer at the first opportune moment.
	Stop(err error)
}

Tracer interface extends vm.EVMLogger and additionally allows collecting the tracing result.

func New

func New(code string, ctx *Context) (Tracer, error)

New returns a new instance of a tracer,

  1. If 'code' is the name of a registered native tracer, then that tracer is instantiated and returned
  2. If 'code' is the name of a registered js-tracer, then that tracer is instantiated and returned
  3. Otherwise, the code is interpreted as the js code of a js-tracer, and is evaluated and returned.

Directories

Path Synopsis
internal
tracers
Package tracers contains the actual JavaScript tracer assets.
Package tracers contains the actual JavaScript tracer assets.

Jump to

Keyboard shortcuts

? : This menu
/ : Search site
f or F : Jump to
y or Y : Canonical URL