76 lines
2.4 KiB
Plaintext
76 lines
2.4 KiB
Plaintext
|
{
|
||
|
|
postState: null,
|
||
|
|
accounts: [$1],
|
||
|
|
|
||
|
|
// lookupAccount injects the specified account into the postState object.
|
||
|
|
lookupAccount: function(addr, db){
|
||
|
|
var acc = toHex(addr);
|
||
|
|
if (this.postState[acc] === undefined) {
|
||
|
|
this.postState[acc] = {
|
||
|
|
balance: '0x' + db.getBalance(addr).toString(16),
|
||
|
|
nonce: db.getNonce(addr),
|
||
|
|
code: toHex(db.getCode(addr)),
|
||
|
|
storage: {}
|
||
|
|
};
|
||
|
|
}
|
||
|
|
},
|
||
|
|
|
||
|
|
// lookupStorage injects the specified storage entry of the given account into
|
||
|
|
// the postState object.
|
||
|
|
lookupStorage: function(addr, key, db){
|
||
|
|
var acc = toHex(addr);
|
||
|
|
var idx = toHex(key);
|
||
|
|
|
||
|
|
if (this.postState[acc].storage[idx] === undefined) {
|
||
|
|
var val = toHex(db.getState(addr, key));
|
||
|
|
if (val != "0x0000000000000000000000000000000000000000000000000000000000000000") {
|
||
|
|
this.postState[acc].storage[idx] = toHex(db.getState(addr, key));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
},
|
||
|
|
|
||
|
|
// result is invoked when all the opcodes have been iterated over and returns
|
||
|
|
// the final result of the tracing.
|
||
|
|
result: function(ctx, db) {
|
||
|
|
this.lookupAccount(ctx.from, db);
|
||
|
|
this.lookupAccount(ctx.to, db);
|
||
|
|
|
||
|
|
for(var i in this.accounts) {
|
||
|
|
this.lookupAccount(toAddress(this.accounts[i]), db)
|
||
|
|
}
|
||
|
|
|
||
|
|
// Return the assembled allocations (postState)
|
||
|
|
return this.postState;
|
||
|
|
},
|
||
|
|
|
||
|
|
// step is invoked for every opcode that the VM executes.
|
||
|
|
step: function(log, db) {
|
||
|
|
// Add the current account if we just started tracing
|
||
|
|
if (this.postState === null){
|
||
|
|
this.postState = {};
|
||
|
|
// Balance will potentially be wrong here, since this will include the value
|
||
|
|
// sent along with the message. We fix that in 'result()'.
|
||
|
|
this.lookupAccount(log.contract.getAddress(), db);
|
||
|
|
}
|
||
|
|
// Whenever new state is accessed, add it to the postState
|
||
|
|
switch (log.op.toString()) {
|
||
|
|
case "EXTCODECOPY": case "EXTCODESIZE": case "BALANCE":
|
||
|
|
this.lookupAccount(toAddress(log.stack.peek(0).toString(16)), db);
|
||
|
|
break;
|
||
|
|
case "CREATE":
|
||
|
|
var from = log.contract.getAddress();
|
||
|
|
this.lookupAccount(toContract(from, db.getNonce(from)), db);
|
||
|
|
break;
|
||
|
|
case "CALL": case "CALLCODE": case "DELEGATECALL": case "STATICCALL":
|
||
|
|
this.lookupAccount(toAddress(log.stack.peek(1).toString(16)), db);
|
||
|
|
break;
|
||
|
|
case 'SSTORE':case 'SLOAD':
|
||
|
|
this.lookupStorage(log.contract.getAddress(), toWord(log.stack.peek(0).toString(16)), db);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
},
|
||
|
|
|
||
|
|
// fault is invoked when the actual execution of an opcode fails.
|
||
|
|
fault: function(log, db) {}
|
||
|
|
}
|