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author | Nick Johnson <arachnid@notdot.net> | 2016-08-19 22:19:51 +0800 |
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committer | Nick Johnson <arachnid@notdot.net> | 2016-08-22 16:26:15 +0800 |
commit | 781915f183c6e09474c6192d1aaba8e99c4990de (patch) | |
tree | 572ae2ca95d46c8a37e12a3d03cf3058caf06740 /core/vm/gas.go | |
parent | 475521dd747070372f84c2b0ac202e14216dc0e0 (diff) | |
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core/vm: Refactor tracing to make Tracer the main interface
This CL makes several refactors:
- Define a Tracer interface, implementing the `CaptureState` method
- Add the VM environment as the first argument of
`Tracer.CaptureState`
- Rename existing functionality `StructLogger` an make it an
implementation of `Tracer`
- Delete `StructLogCollector` and make `StructLogger` collect the logs
directly
- Change all callers to use the new `StructLogger` where necessary and
extract logs from that.
- Deletes the apparently obsolete and likely nonfunctional 'TraceCall'
from the eth API.
Callers that only wish accumulated logs can use the `StructLogger`
implementation straightforwardly. Callers that wish to efficiently
capture VM traces and operate on them without excessive copying can now
implement the `Tracer` interface to receive VM state at each step and
do with it as they wish.
This CL also removes the accumulation of logs from the vm.Environment;
this was necessary as part of the refactor, but also simplifies it by
removing a responsibility that doesn't directly belong to the
Environment.
Diffstat (limited to 'core/vm/gas.go')
-rw-r--r-- | core/vm/gas.go | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/core/vm/gas.go b/core/vm/gas.go index 09feddd7d..eb2c16346 100644 --- a/core/vm/gas.go +++ b/core/vm/gas.go @@ -38,7 +38,7 @@ var ( ) // baseCheck checks for any stack error underflows -func baseCheck(op OpCode, stack *stack, gas *big.Int) error { +func baseCheck(op OpCode, stack *Stack, gas *big.Int) error { // PUSH and DUP are a bit special. They all cost the same but we do want to have checking on stack push limit // PUSH is also allowed to calculate the same price for all PUSHes // DUP requirements are handled elsewhere (except for the stack limit check) |