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-rw-r--r--core/vm/environment.go4
1 files changed, 4 insertions, 0 deletions
diff --git a/core/vm/environment.go b/core/vm/environment.go
index 25bd2515e..e61676409 100644
--- a/core/vm/environment.go
+++ b/core/vm/environment.go
@@ -8,6 +8,8 @@ import (
"github.com/ethereum/go-ethereum/core/state"
)
+// Environment is is required by the virtual machine to get information from
+// it's own isolated environment. For an example see `core.VMEnv`
type Environment interface {
State() *state.StateDB
@@ -33,6 +35,8 @@ type Environment interface {
Create(me ContextRef, data []byte, gas, price, value *big.Int) ([]byte, error, ContextRef)
}
+// StructLog is emited to the Environment each cycle and lists information about the curent internal state
+// prior to the execution of the statement.
type StructLog struct {
Pc uint64
Op OpCode