From 507ba06b491ba0f892141e8ea0b09090d044993d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Pawe=C5=82=20Bylica?= <pawel.bylica@imapp.pl>
Date: Fri, 26 Sep 2014 11:37:18 +0200
Subject: [PATCH] ExecutionEngine stub and -i program option for interpreting
 EVM Code

---
 evmcc/ExecutionEngine.cpp | 18 ++++++++++++++++++
 evmcc/ExecutionEngine.h   | 17 +++++++++++++++++
 evmcc/evmcc.cpp           | 29 ++++++++++++++++-------------
 3 files changed, 51 insertions(+), 13 deletions(-)
 create mode 100644 evmcc/ExecutionEngine.cpp
 create mode 100644 evmcc/ExecutionEngine.h

diff --git a/evmcc/ExecutionEngine.cpp b/evmcc/ExecutionEngine.cpp
new file mode 100644
index 0000000000..2fe56f3731
--- /dev/null
+++ b/evmcc/ExecutionEngine.cpp
@@ -0,0 +1,18 @@
+
+#include "ExecutionEngine.h"
+
+namespace evmcc
+{
+
+ExecutionEngine::ExecutionEngine()
+{
+
+}
+
+
+int ExecutionEngine::run(const dev::bytes& bytecode)
+{
+	return 0;
+}
+
+}
\ No newline at end of file
diff --git a/evmcc/ExecutionEngine.h b/evmcc/ExecutionEngine.h
new file mode 100644
index 0000000000..e0c2693fa9
--- /dev/null
+++ b/evmcc/ExecutionEngine.h
@@ -0,0 +1,17 @@
+
+#pragma once
+
+#include <libdevcore/Common.h>
+
+namespace evmcc
+{
+
+class ExecutionEngine
+{
+public:
+	ExecutionEngine();
+
+	int run(const dev::bytes& bytecode);
+};
+
+}
\ No newline at end of file
diff --git a/evmcc/evmcc.cpp b/evmcc/evmcc.cpp
index fc0b03a99b..a7ed341a0d 100644
--- a/evmcc/evmcc.cpp
+++ b/evmcc/evmcc.cpp
@@ -11,6 +11,7 @@
 #include <libevmface/Instruction.h>
 
 #include "Compiler.h"
+#include "ExecutionEngine.h"
 
 using namespace dev;
 
@@ -27,28 +28,23 @@ int main(int argc, char** argv)
     std::string input_file;
     bool opt_dissassemble = false;
     bool opt_show_bytes = false;
-    bool opt_compile = false;
+	bool opt_compile = false;
+	bool opt_interpret = false;
     bool opt_unknown = false;
 
     for (int i = 1; i < argc; i++)
     {
         std::string option = argv[i];
         if (option == "-b")
-        {
             opt_show_bytes = true;
-        }
         else if (option == "-c")
-        {
             opt_compile = true;
-        }
         else if (option == "-d")
-        {
-            opt_dissassemble = true;
-        }
-        else if (option[0] != '-' && input_file.empty())
-        {
-            input_file = option;
-        }
+			opt_dissassemble = true;
+		else if (option == "-i")
+			opt_interpret = true;
+		else if (option[0] != '-' && input_file.empty())
+			input_file = option;
         else
         {
             opt_unknown = true;
@@ -58,7 +54,7 @@ int main(int argc, char** argv)
 
     if (opt_unknown ||
         input_file.empty() ||
-        (!opt_show_bytes && !opt_compile && !opt_dissassemble))
+        (!opt_show_bytes && !opt_compile && !opt_dissassemble && !opt_interpret))
     {
         show_usage();
         exit(1);
@@ -94,5 +90,12 @@ int main(int argc, char** argv)
         evmcc::Compiler().compile(bytecode);
     }
 
+	if (opt_interpret)
+	{
+		auto engine = evmcc::ExecutionEngine();
+		auto result = engine.run(bytecode);
+		return result;
+	}
+
     return 0;
 }