impl ORIGIN

Author: lightsing

bus-mapping/src/evm/opcodes/origin.rs

@@ -4,7 +4,7 @@ use crate::{
     operation::CallContextField,
     Error,
 };
-use eth_types::GethExecStep;
+use eth_types::{GethExecStep, ToWord};
 
 #[derive(Debug, Copy, Clone)]
 pub(crate) struct Origin;
@@ -17,7 +17,7 @@ impl Opcode for Origin {
         let geth_step = &geth_steps[0];
         let mut exec_step = state.new_step(geth_step)?;
         // TODO: Get origin result
-        let value = geth_steps[1].stack.last()?;
+        let value = state.tx.from.to_word();
         let tx_id = state.tx_ctx.id();
 
         // CallContext read of the TxId
@@ -29,6 +29,8 @@ impl Opcode for Origin {
         )?;
 
         // Stack write of the origin address value
+        #[cfg(feature = "stack-check")]
+        assert_eq!(value, geth_steps[1].stack.last()?);
         state.stack_push(&mut exec_step, value)?;
 
         Ok(vec![exec_step])