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JSON format printing pre-state. (#5712)

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This commit is contained in:
Tomasz Drwięga 2017-05-30 19:30:15 +02:00 committed by Gav Wood
parent c2c7231cad
commit 480741894b
1 changed files with 25 additions and 13 deletions
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38
evmbin/src/display/json.rs
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@ -30,6 +30,7 @@ pub struct Informant {
pc: usize,
instruction: u8,
gas_cost: U256,
gas_used: U256,
stack: Vec<U256>,
memory: Vec<u8>,
storage: HashMap<H256, H256>,
@ -82,6 +83,19 @@ impl trace::VMTracer for Informant {
}
fn trace_executed(&mut self, gas_used: U256, stack_push: &[U256], mem_diff: Option<(usize, &[u8])>, store_diff: Option<(U256, U256)>) {
println!(
"{{\"pc\":{pc},\"op\":{op},\"gas\":{gas},\"gasCost\":{gas_cost},\"memory\":{memory},\"stack\":{stack},\"storage\":{storage},\"depth\":{depth}}}",
pc = self.pc,
op = self.instruction,
gas = display::u256_as_str(&(gas_used + self.gas_cost)),
gas_cost = display::u256_as_str(&self.gas_cost),
memory = self.memory(),
stack = self.stack(),
storage = self.storage(),
depth = self.depth,
);
self.gas_used = gas_used;
self.stack.extend_from_slice(stack_push);
if let Some((pos, data)) = mem_diff {
@ -91,18 +105,6 @@ impl trace::VMTracer for Informant {
if let Some((pos, val)) = store_diff {
self.storage.insert(pos.into(), val.into());
}
println!(
"{{\"pc\":{pc},\"op\":{op},\"gas\":{gas},\"gasCost\":{gas_cost},\"memory\":{memory},\"stack\":{stack},\"storage\":{storage},\"depth\":{depth}}}",
pc = self.pc,
op = self.instruction,
gas = display::u256_as_str(&gas_used),
gas_cost = display::u256_as_str(&self.gas_cost),
memory = self.memory(),
stack = self.stack(),
storage = self.storage(),
depth = self.depth,
);
}
fn prepare_subtrace(&self, _code: &[u8]) -> Self where Self: Sized {
@ -111,6 +113,16 @@ impl trace::VMTracer for Informant {
vm
}
fn done_subtrace(&mut self, _sub: Self) where Self: Sized {}
fn done_subtrace(&mut self, mut sub: Self) where Self: Sized {
if sub.depth == 1 {
// print last line with final state:
sub.pc += 1;
sub.instruction = 0;
sub.gas_cost = 0.into();
let gas_used = sub.gas_used;
trace::VMTracer::trace_executed(&mut sub, gas_used, &[], None, None);
}
}
fn drain(self) -> Option<trace::VMTrace> { None }
}