tracers

Documentation

Overview

Package tracers is a manager for transaction tracing engines.

Index

• Variables
• func GetMemoryCopyPadded(m *fakevm.Memory, offset, size int64) ([]byte, error)
• type Context
• type Tracer

Variables

var DefaultDirectory = directory{/* contains filtered or unexported fields */}

DefaultDirectory is the collection of tracers bundled by default.

Functions

func GetMemoryCopyPadded

func GetMemoryCopyPadded(m *fakevm.Memory, offset, size int64) ([]byte, error)

GetMemoryCopyPadded returns offset + size as a new slice. It zero-pads the slice if it extends beyond memory bounds.

Types

type Context

type Context struct {
	BlockHash   common.Hash // Hash of the block the tx is contained within (zero if dangling tx or call)
	BlockNumber *big.Int    // Number 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 Tracer

type Tracer interface {
	fakevm.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.